geotechnical environmental water resources construction

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GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION SERVICES 2010 Crow Canyon Place, Suite 250 San Ramon, CA 94583 (925) 866-9000 Fax (888) 279-2698 www.engeo.com Project No. 14121.001.000 April 12, 2018 Mr. Tom Jodry Senior Vice President TC Agoge Associates, LLC 101 California Street, Suite 2200 San Francisco, CA 94111 Subject: 282 South Montgomery Street San Jose, California UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Reference: ENGEO, Phase I Environmental Site Assessment, 282 South Montgomery Street, San Jose, California; Project No. 14121.001.000; DRAFT, February 28, 2018. Dear Mr. Jodry: We are pleased to submit the findings of our phase II environmental site assessment (ESA) undertaken at the subject property (Property) in San Jose, California. The purpose of this phase II ESA is to address potential subsurface impairments associated with the past uses of the Property, and the potential migration of offsite impact from neighboring sites. BACKGROUND The Property is located at 282 South Montgomery Street in San Jose, California (Figure 1). The approximately 0.5-acre Property is identified with Assessor's Parcel Number (APN) 259-47-080. Former addresses associated with the Property include 649 West San Carlos Street and 589 Lorraine Avenue. The Property is located northeast to the intersection of South Montgomery Street and West San Carlos Street, and is comprised of a large footprint building occupied by a car rental facility and a packaging business. ENGEO conducted a phase I ESA for the Property (Reference). Based on the findings of the referenced Phase I ESA, the following Recognized Environmental Condition (REC) was noted: A review of historical records found that the Property had been used a gasoline service station and a dry cleaning facility in the past. There could be potential surface and subsurface impacts to the Property due to its past uses. Additionally, there could be a potential vapor intrusion risk. No historical RECs and no controlled RECs were identified for the Property; however, the following potential environmental concerns were identified for the Property: Given the age of the existing structure, it is conceivable that asbestos-containing materials and lead-based paint materials may exist within the structure. Based on both the review of regulatory databases and the areas historic industrial land uses, potential sources of offsite groundwater impact exist within the vicinity of the Property.

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Page 1: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

GEOTECHNICAL ENVIRONMENTAL

WATER RESOURCES CONSTRUCTION SERVICES

2010 Crow Canyon Place, Suite 250 San Ramon, CA 94583 (925) 866-9000 Fax (888) 279-2698 www.engeo.com

Project No. 14121.001.000 April 12, 2018

Mr. Tom Jodry Senior Vice President TC Agoge Associates, LLC 101 California Street, Suite 2200 San Francisco, CA 94111

Subject: 282 South Montgomery Street San Jose, California

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT

Reference: ENGEO, Phase I Environmental Site Assessment, 282 South Montgomery Street, San Jose, California; Project No. 14121.001.000; DRAFT, February 28, 2018.

Dear Mr. Jodry: We are pleased to submit the findings of our phase II environmental site assessment (ESA) undertaken at the subject property (Property) in San Jose, California. The purpose of this phase II ESA is to address potential subsurface impairments associated with the past uses of the Property, and the potential migration of offsite impact from neighboring sites. BACKGROUND

The Property is located at 282 South Montgomery Street in San Jose, California (Figure 1). The approximately 0.5-acre Property is identified with Assessor's Parcel Number (APN) 259-47-080. Former addresses associated with the Property include 649 West San Carlos Street and 589 Lorraine Avenue. The Property is located northeast to the intersection of South Montgomery Street and West San Carlos Street, and is comprised of a large footprint building occupied by a car rental facility and a packaging business. ENGEO conducted a phase I ESA for the Property (Reference). Based on the findings of the referenced Phase I ESA, the following Recognized Environmental Condition (REC) was noted:

A review of historical records found that the Property had been used a gasoline service station and a dry cleaning facility in the past. There could be potential surface and subsurface impacts to the Property due to its past uses. Additionally, there could be a potential vapor intrusion risk.

No historical RECs and no controlled RECs were identified for the Property; however, the following potential environmental concerns were identified for the Property:

Given the age of the existing structure, it is conceivable that asbestos-containing materials and lead-based paint materials may exist within the structure.

Based on both the review of regulatory databases and the areas historic industrial land uses, potential sources of offsite groundwater impact exist within the vicinity of the Property.

Page 2: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 2

A phase II environmental site assessment was proposed for the Property, including the recovery of soil, groundwater, and soil gas samples, to address potential subsurface impairments associated with the past uses of the Property, and the potential migration of offsite impact from neighboring sites. Further, given the past use of the Property as a dry cleaning facility and a gasoline service, ENGEO recommended the preparation of a Site Management Plan (SMP) to outline procedures and protocols to handle impacted materials. SCOPE OF FIELD EXPLORATION

Initial field sampling activities associated with the phase II ESA were performed on February 28, 2018, and a second round of sampling was conducted on March 28 and 29, 2018. Prior to drilling, an ENGEO representative contacted USA North Service Alert for identification of underground utilities at the Property. Subsequently, as a precautionary measure, a private utility locator was retained to clear the sample locations. A C-57 licensed drilling contractor was retained to advance borings using a Geoprobe® direct-push rig. During the first round of sampling, soil samples were collected from five locations (S-1 through S-5), groundwater samples were collected from three of the five locations (GW-2, GW-4, and GW-5), and soil gas samples were collected from five locations (SG-1 through SG-5), as presented on Figure 2. The drilling contractor cored through the concrete slab and pushed through to collect samples at the interior locations (S-3 and SG-3). The second round of sampling included the collection of soil samples from an additional 11 locations (S-6 through S-16), groundwater samples from an additional four locations (GW-6, GW-7, GW-8, and GW-16), and collection of soil gas samples from an additional seven locations (SG-6 through SG-12). Indoor air and ambient air samples were also collected during the second round of sampling. In addition, a groundwater and a soil gas sample was collected from the adjacent Car Wash parcel across the road on South Montgomery Street (655 West San Carlos Street), Details pertaining to each of these tasks are presented below. Task 1: Soil Assessment

A soil sampling study was performed to address potential subsurface impairments associated with the past use of Property. A total of 16 soil borings (S-1 through S-16) were advanced at the Property to a total depth of 10 feet below ground surface (Figure 2). Soil samples were retrieved within continuous acetate core liners measuring 5 feet in length. During drilling, a photoionization detector (PID) was used to screen the soil cores. Soil samples were generally retrieved from depths of 1 foot, 5 feet, and 10 feet below ground surface. Following recovery, the soil samples were sealed using Teflon® sheets secured by tight-fitting plastic end caps and tape. Upon collection, a label was placed on the sample that included a unique sample number, sample location, time/date collected, laboratory analysis, and the sampler’s identification. The soil samples were placed in an ice-cooled chest and submitted under documented chain-of-custody to Torrent Laboratory, Inc., a State-certified laboratory in Milpitas, California.

Page 3: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 3

The soil samples collected during the first round of sampling were analyzed for the presence of CAM-17 metals (EPA Method 6010/7471), volatile organic compounds (VOCs) and total petroleum hydrocarbons as gasoline (TPH-g) (EPA Method 8260), and TPH-diesel (TPH-d) and TPH-motor oil (TPH-mo) (EPA Method 8015M with silica gel cleanup). Additionally, soil samples recovered from the 1-foot depth interval were analyzed for semi-volatile organic compounds (SVOCs) (EPA Method 8270C SIM). The soil samples collected during the second round of sampling were analyzed for VOCs (EPA Method 8260). The boreholes were filled with neat cement grout upon completion of sampling. Task 2: Grab Groundwater Assessment

Grab groundwater samples were recovered from seven of the 16 sample locations on the Property (GW-2, GW-4, GW-5, GW-6, GW-7, GW-8, and GW-16) and from one location on the adjacent Car Wash parcel (CW-GW) as shown on Figure 2. The soil borings were advanced deeper until groundwater was first encountered. Groundwater was encountered at a depth of approximately 20 to 25 feet below the ground surface. Temporary PVC casings were used in each borehole to facilitate collection. Upon collection, groundwater samples were placed into laboratory-provided sample containers. Each container was labeled with a sample identification, sample location, date and time of collection, and sampler’s identification. The groundwater samples were then placed in an ice-cooled chest and submitted under documented chain-of-custody to Torrent Laboratory, Inc. A representative groundwater sample for laboratory analysis could not be collected from location GW-4 since there was not enough groundwater encountered in this boring which was advanced to approximately 30 feet below ground surface. Grab groundwater samples GW-2 and GW-5 were analyzed for the presence of TPH-g and VOCs (EPA Method 8260), and TPH-d and TPH-mo (EPA Method 8015M with silica gel cleanup), and CAM-17 metals (EPA Method 6010/7471). All other grab groundwater samples were analyzed for VOCs (EPA Method 8260). Following sample recovery, the temporary well points were removed and backfilled with neat cement grout. Task 3: Soil Gas Assessment In order to evaluate potential vapor intrusion issues at the Property, given the past uses of the Property as a gasoline service station and a dry cleaning facility, soil gas samples were collected from a total of 12 locations (SG-1 through SG-12) across the Property, and from one location on the adjacent Car Wash parcel (CW-SG) (Figure 2). The installation and sampling of the soil gas borings were performed in general conformance with the Department of Toxic Substances Control (DTSC) Final Advisory Active Soil Gas Investigations (July 2015), using the following procedures:

The temporary soil vapor monitoring well casings were constructed with ¼-inch-diameter Teflon® tubing equipped with a 6-inch stainless steel filter at the base of the tubing. The temporary well installation was performed with a Geoprobe® direct-push rig, which advanced an approximately 2-inch-diameter boring to a depth of 6 feet below the ground surface.

Page 4: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 4

The bottom of the well casing was equipped with a 6-inch-long filter centered in the middle of a 2-foot layer of No. 3 sand. Six inches of dry bentonite was installed on top of the sand, and the remaining annular space was filled with hydrated bentonite grout to the surface.

For the soil gas well installed at SG-3 (inside the building), the total depth was 10 feet below ground surface, and the filter was installed at a depth of 9 feet below ground surface.

Following installation of the annular seal, the well casings were sealed, and the mandatory 2-hour equilibration time began. The sample train was connected to the well tubing by threading the permanent Swagelok® fitting on the well casing onto the manifold. The sample train consisted of a stainless steel twin summa manifold with a built-in flow controller set to 100 to 200 milliliters per minute (ml/min).

Following the mandatory equilibration time, a purge canister was attached to the manifold connection closest to the well casing and the sample canister was connected to the manifold fitting furthest away from the well casing. Prior to connecting the sample train to the well casing, a shut-in test was performed to assess for potential leaks. The shut-in test consisted of capping the end of the manifold, then applying a vacuum with the purge canister, closing the purge valve, and observing the vacuum gauge for 2 minutes to determine if there is a drop in vacuum.

A minimum of three well volumes were purged from the wells. Once purging was complete, the valve on the purge canister was closed. Samples were collected by opening the sample canister valve and allowing the sample canister to extract soil vapor until the vacuum in the sample canister reached approximately 5 inches of mercury. The leak detection compound 1,1-diflouroethane (1,1-DFA) was applied by wrapping a doused rag around the manifold fittings during sample collection.

Each sample canister was labeled with a unique identification number, sampling time, and pre- and post-sample vacuum readings. All soil gas samples were collected and submitted to a State-certified laboratory under documented chain-of-custody for analysis of TPH-gasoline and volatile organic compounds (VOCs), by EPA Test Method TO-15.

Task 4: Indoor Air and Ambient Air Sampling In order to address potential human health risks within the building at the Property, indoor air sampling was conducted. Indoor air sampling was performed at four locations (IA-1 through IA-4) inside the building, in accordance with the Final Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air, Department of Toxic Substances Control, October 2011. In addition, two ambient air samples (AA-1 and AA-2) were collected from the Property at the same time. The scope of services included the following:

Four 6-liter summa canisters were deployed inside the building, as presented on Figure 2. Summa canisters were deployed in the breathing space 3 to 5 feet above ground and were equipped with an 8-hour flow controller. The sampling was conducted for an 8-hour duration during business hours to mimic a typical working day.

For the ambient air samples, two 6-liter summa canisters were deployed at the Property (Figure 2). The summa canisters were equipped with an 8-hour flow controller.

The four indoor air samples and two ambient air samples were submitted to a State-certified laboratory for analysis of VOCs by EPA Test Method TO-15, SIM mode.

Page 5: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 5

ANALYTICAL RESULTS Soil As presented in Table A, detected analytes in soil were compared to their respective San Francisco Regional Water Quality Control Board’s (SFRWQCB) Environmental Screening Levels (ESLs) for direct exposure to shallow soil for both residential and commercial land use1,2. Review of the laboratory test results found detectable concentrations of several metallic analytes, including arsenic, barium, chromium, cobalt, copper, lead, nickel, selenium, vanadium, and zinc in the soil samples collected from the Property. Select soil samples exhibited arsenic concentrations in excess of their respective screening levels for both residential and commercial land use. However, the reported arsenic concentrations, ranging between non-detect mg/kg and 9.07 milligrams per kilograms (mg/kg), are consistent with expected background soil concentrations in the San Francisco Bay Area. Soil sample S-5@1’ exhibited a concentration of lead (358 mg/kg) in excess of both, its corresponding residential ESL of 80 mg/kg and the corresponding commercial ESL of 320 mg/kg. Because the soil sample exhibited a lead concentration in excess of 50 mg/kg, which is greater than 10 times the respective soluble threshold limit concentration (STLC) of 5 milligrams per liter (mg/L), if removal and off-site transport of soil from this location is contemplated, it is recommended that subsequent analysis be performed using the Waste Extraction Test (WET) to determine the soluble concentration. All other concentrations of metals were below the corresponding ESLs or within background concentrations. TPH-d and TPH-mo were detected in the soil samples collected from the Property; however, the detected concentrations are below the corresponding ESLs. TPH-g, toluene, and tetrachloroethene (PCE) were the only VOCs detected in soil at the Property. TPH-g and toluene were detected at concentrations below the corresponding ESLs. PCE concentrations in two soil samples (S10@1’ and S16@10’) exceeded the corresponding residential ESL of 600 micrograms per kilogram (µg/kg) as well as the corresponding commercial/industrial ESL of 2,700 µg/kg. As presented in Table A, PCE concentrations in eight samples exceeded the corresponding residential ESL, but were below the corresponding commercial/industrial ESL. PCE concentrations in soil are presented on Figure 3. Pyrene and benzo(b)fluoranthene were the only SVOCs detected in one soil samples collected at a depth of 1 foot below ground surface (S-2@1’). These concentrations are below the corresponding residential and commercial/industrial ESLs. A summary of the soil sample analytical results is presented in Table A. The laboratory results are presented in their entirety in Appendix A.

1 San Francisco Regional Water Quality Control Board (RWQCB), Residential Shallow Soil Exposure Environmental Screening Levels, Table S-1, Rev 3 February 2016. 2 San Francisco RWQCB, Commercial/Industrial Shallow Soil Exposure Environmental Screening Levels, Table S-1, Rev 3 February 2016.

Page 6: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 6

Groundwater

Review of the laboratory test results found detectable concentrations of several metallic analytes, including barium, nickel, and selenium in the grab groundwater samples collected from the Property. The detectable concentrations of metals are reported below the corresponding groundwater ESLs.3 As presented in Table B, TPH-d and TPH-mo were not detected in the groundwater samples. TPH-g was detected at concentrations of 1,120 and 209 micrograms per liter (µg/L) in groundwater samples GW-2 and GW-5, respectively. The TPH-g concentration at GW-2 exceeds the corresponding groundwater ESL. VOCs, including 1,2-dichlorothane, 1,1-dichloropropene, PCE, trichloroethene (TCE), cis-1,2-dichloroethene (cis-1,2-DCE), trans-1,2-dichloroethene (trans-1,2-DCE), and toluene were detected in the grab groundwater samples collected from the Property. TCE, 1,2-dichloroethane, cis-1,2-DCE, and PCE concentrations exceed the corresponding ESLs in the grab groundwater samples collected from the Property. PCE was not detected in the grab groundwater sample collected at the adjacent Car Wash parcel. PCE concentrations in groundwater are presented on Figure 4. A summary of the groundwater analytical results is presented in Table B. The laboratory results are presented in their entirety in Appendix A. Soil Gas VOCs, including 1,2,4-trimethylbenzene, 2-butanone, benzene, acetone, tert-butanol, 2-hexanone, 1,1,2-dichloroethane, 4-ethyltoluene, 4-methyl-2-pentanone, carbon disulfide, ethylbenzene, hexane, xylenes, PCE, naphthalene, toluene, and TPH-g were detected in the soil gas samples collected from the Property. Results were compared to the corresponding SFRWQCB’s ESLs for vapor intrusion for both residential and commercial land use45. With the exception of PCE, concentrations of the VOCs are below the corresponding ESLs. Reported concentrations of PCE ranged between 620 to 150,000 micrograms per cubic meter (µg/m3) in the samples collected from the Property. PCE concentrations at the Property exceed both the corresponding residential and commercial ESLs for vapor intrusion. PCE was detected at a concentration of 200 µg/m3 in the soil gas sample (CW-SG) collected from the adjacent Car Wash parcel, which is below both the corresponding residential and commercial ESLs for vapor intrusion. PCE concentrations in soil gas are presented on Figure 5. A summary of the soil gas analytical results is presented in Table C. The laboratory results are presented in their entirety in Appendix A.

3 San Francisco Bay Regional Water Quality Control Board, Environmental Screening Levels (ESLs), MCL Priority (Table GW-1) February 2016, Revision 3. 4 San Francisco RWQCB Table SG-1, Vapor Intrusion Residential Environmental Screening Levels, Rev 3 February 2016. 5 San Francisco RWQCB Table SG-1, Vapor Intrusion Commercial/Industrial Environmental Screening Levels, Rev 3 February 2016.

Page 7: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 7

Indoor Air and Ambient Air Several VOCs were detected in the indoor air and ambient air samples collected from the Property (Appendix A). A summary of results for PCE and its breakdown products is presented in Table D. Indoor air and ambient air results were compared to the RWQCB ESLs, as well as the United States Environmental Protection Agency’s (USEPA) Regional Screening Levels (RSLs). PCE concentrations in all four indoor air sample exceeded the corresponding residential and commercial ESLs, however, concentrations in all samples were below the commercial RSLs. PCE concentrations in two samples (IA-1 and IA-2) exceeded the residential RSL, but were below the commercial RSLs. In the two ambient air samples collected from the Property, PCE was detected at concentrations exceeding the corresponding residential ESL, but was below the commercial ESL, as well as the residential and commercial RSLs. The concentration of vinyl chloride exceeded the residential ESL in one sample (IA-4), but was below the corresponding commercial ESL and RSL. The laboratory results are presented in their entirety in Appendix A. DISCUSSION AND CONCLUSION Review of the laboratory test results found areas of isolated soil impact with select target analytes exceeding the corresponding residential screening levels and/or commercial/industrial screening levels. The groundwater samples recovered from the Property exhibited concentrations in excess of the respective ESLs in one or more of the following VOCs: 1,2-dichlorothane, PCE, TCE, and

cis-1,2-DCE. Sample GW-2 also exhibited an elevated concentration of TPH-g (1,120 g/L). Elevated concentrations of PCE were observed in the soil gas samples collected from across the Property. These concentrations exceed both the residential and commercial/industrial ESLs for vapor intrusion. Elevated concentrations of PCE were also observed in the indoor air samples collected from the Property, indicating that indoor air concentrations exceed respective screening levels inside the building as described in preceding sections. Concentrations of PCE in the soil gas and groundwater samples collected from the adjacent Car Wash parcel were below respective screening levels, indicating that this parcel does not appear to have been environmentally impacted. The elevated concentrations of PCE in soil, groundwater, and soil gas on the Property indicates that a release associated with the former dry cleaner has occurred on the Property, and remediation would be required to reduce the concentrations of PCE in soil gas and groundwater prior to redevelopment. In addition, there could be a potential offsite source contributing. Sampling activities were recently conducted at the adjacent parcel to the east (580 Lorraine Avenue). Offsite impacts will be evaluated based on the results of sampling conducted at that site. In order to avoid delays associated with the proposed development, we would recommend reaching out to appropriate Regulatory Agencies to enter into a Voluntary Oversight Agreement for remediation and/or mitigation activities.

Page 8: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

TC Agoge Associates, LLC 14121.001.000

282 South Montgomery Street, San Jose April 12, 2018

UPDATED PHASE II ENVIRONMENTAL SITE ASSESSMENT Page 8

If you have any questions regarding this report, please contact us. Sincerely, ENGEO Incorporated Divya Bhargava, PE Jeffrey A. Adams, PhD, PE Scott Johns, PE Attachments: Figures

Tables Appendix A – Laboratory Analytical Reports

Page 9: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

14121.001.000 April 12, 2018

FIGURES Figure 1 – Vicinity Map Figure 2 – Site Plan Figure 3 – PCE Concentrations in Soil Figure 4 – PCE Concentrations in Groundwater Figure 5 – PCE Concentrations in Soil Gas

Page 10: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

0

0 FEET

METERS

2000

1000

VICINITY MAP282 SOUTH MONTGOMERY STREET

SAN JOSE, CALIFORNIA

14121.001.000

AS SHOWN 1

SITE

Page 11: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SITE

CW-SG

CW-GW

S-3

S-1

SG-5

SG-4

SG-3

SG-2

SG-1

GW-5

*GW-4/S-4

GW-2/S-2

SG-12

SG-9

SG-6

SG-7SG-11

SG-10

SG-8

S-9

S-11

S-12

S-10

S-13

S-14

S-15

GW-16/S-16

GW7/S-7

GW-6/S-6

GW-8/S-8

AA-1

AA-2

IA-1

IA-2

IA-4

IA-3

0

0 FEET

METERS

30

15

SITE PLAN282 SOUTH MONTGOMERY STREET

SAN JOSE, CALIFORNIA

14121.001.000

AS SHOWN 2

EXPLANATION

SOIL GAS SAMPLE (ENGEO, 2018)

SOIL SAMPLE (ENGEO, 2018)

SOIL AND GROUNDWATER SAMPLE (ENGEO, 2018)

AMBIENT AIR SAMPLE (ENGEO, 2018)

INDOOR AIR SAMPLE (ENGEO, 2018)

GROUNDWATER SAMPLE (ENGEO, 2018)

GROUNDWATER SAMPLE COULDNOT BE COLLECTED

SG-12

S-15

GW-16/S-16

AA-2

IA-1

CW-GW

*

Page 12: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SITE

S-3

S-1

GW-5/S5

*GW-4/S-4

GW-2/S-2

S-9

S-11

S-12

S-10

S-13

S-14

S-15

GW-16/S-16

GW7/S-7

GW-6/S-6

GW-8/S-8

0

0 FEET

METERS

30

15

PCE CONCENTRATIONS IN SOIL282 SOUTH MONTGOMERY STREET

SAN JOSE, CALIFORNIA

14121.001.000

AS SHOWN 3

55.4

S1@1'

S1@5'S1@10'

1,04093.5172

S2@1'

S2@5'S2@10'

1,260246208

S3@1'S3@5'S3@10'

470554309

S4@1'S4@5'S4@10'

457197981

S5@1'

S5@5'S5@10'

22.2

124

32.4S6@1'

S6@5'S6@10'

49.3

43.4

13.9S7@1'S7@5'S7@10'

25.7

40.6

<10S8@1'S8@5'S8@10'

<10

21.4

189S9@1'S9@5'S9@10'

64.9

132

959S10@1'S10@5'S10@10'

4,180

1,710

[email protected]'[email protected]'

1,260

[email protected]'[email protected]'

795

S14@1'S14@5'S14@9'

44116754.6

S13@1'S13@5'[email protected]'

28373.350.6

38.1S15@7'[email protected]'

21.3

1,710S16@1'

S16@5'S16@10'

422

6,810

EXPLANATION

SOIL SAMPLE (ENGEO, 2018)

SOIL AND GROUNDWATER SAMPLE (ENGEO, 2018)

SAMPLE DEPTHS

PCE CONCENTRATIONS IN ( G/KG)

S-16

GW-16/S16

S9@10'

132

Page 13: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SITE

GW-5

*GW-4/S-4

GW-2/S-2

GW-16/S-16

GW7/S-7

GW-6/S-6

GW-8/S-8

0

0 FEET

METERS

30

15

PCE CONCENTRATIONS IN GROUNDWATER282 SOUTH MONTGOMERY STREET

SAN JOSE, CALIFORNIA

14121.001.000

AS SHOWN 4

CW-GW

CW-GW

EXPLANATION

GROUNDWATER SAMPLE (ENGEO, 2018)

SOIL AND GROUNDWATER SAMPLE (ENGEO, 2018)

PCE CONCENTRATION ( g/L)

GROUNDWATER SAMPLE COULDNOT BE COLLECTED

GW-16/S-16

340

GW-8 <0.5

GW-6 45

GW-5 190

GW-2 4,200

GW-16 340

GW-7 1,300

*

GW-GW<0.50

Page 14: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SITE

SG-5

SG-4

SG-3

SG-2

SG-1

SG-12

SG-9

SG-6

SG-7SG-11

SG-10

SG-8

IA-2

IA-4

IA-3

IA-1

CW-SG

AA-1

0

0 FEET

METERS

30

15

PCE CONCENTRATIONS IN SOIL GAS AND AIR

282 SOUTH MONTGOMERY STREET

SAN JOSE, CALIFORNIA

14121.001.000

AS SHOWN 5

SG-1 22,000

SG-2 75,000

SG-3 14,000

SG-4 42,000

SG-5 150,000

SG-6 2,800

SG-7 25,000

SG-8 620

SG-9 21,000

SG-10 95,000

SG-11 19,000

SG-12 29,000

CW-SG 200

AA-1 0.786

AA-2 0.99

IA-1 21.4

IA-2 24.3

IA-3 10.9

IA-4 6.03

EXPLANATION

SOIL GAS SAMPLE (ENGEO, 2018)

AMBIENT AIR SAMPLES (ENGEO, 2018)

INDOOR AIR SAMPLES (ENGEO, 2018)

PCE CONCENTRATION IN (µg/m3)

SG-12

IA-1

AA-2

14,000

AA-2

Page 15: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

14121.001.000 April 12, 2018

TABLES Table A – Summary of Soil Analytical Results Table B – Summary of Groundwater Analytical Results Table C – Summary of Soil Gas Analytical Results Table D – Summary of Indoor Air and Ambient Air

Results: PCE and breakdown products only

Page 16: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Table A - Summary of Soil Analytical Results

Arsenic Barium Cobalt Chromium Copper Nickel Lead Selenium Vanadium Zinc Other

Metals

TPH-g TPH-d TPH-mo Toluene PCE Other

VOCs

Pyrene Benzo[b]fluoranthene Other

SVOCsmg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg µg/kg mg/kg mg/kg µg/kg µg/kg µg/kg µg/kg µg/kg µg/kg

0.0673 1.50E+05 23 1.20E+05 3.10E+03 820 80 3.90E+02 3.90E+02 2.30E+04 -- 7.40E+05 2.30E+02 1.10E+07 -- 600 -- 1.80E+06 160 --

0.313 2.20E+05 350 1.80E+06 4.70E+04 11000 320 5.80E+03 5.80E+03 3.50E+05 -- 3.90E+06 1.10E+03 1.40E+08 -- 2700 -- 2.30E+07 2,900 --

S1@1' 2/28/2018 4.87 160 9.29 36.7 27.2 53.4 9.35 <5 28.2 78.2 ND 341 4.85 26.9 <10 1,040 ND <200 <200 ND

S1@5' 2/28/2018 4.23 61 5.96 45.2 23.6 42.9 <1.3 <5 37 42.2 ND <100 2.64 33.3 <10 93.5 ND NA NA NA

S1@10' 2/28/2018 7.53 116 11.7 41.5 25 53 <1.3 <5 42.4 53.3 ND <100 <2 <10 <10 172 ND NA NA NA

S2@1' 2/28/2018 4.48 121 10.3 40 26.3 55.6 <1.3 <5 31.7 58.3 ND 334 3.64 19.7 <10 1,260 ND 118 106 ND

S2@5' 2/28/2018 <3 176 8.37 39.2 21 43.1 <1.3 5.41 27.5 44.4 ND 128 2.29 41.2 <10 246 ND NA NA NA

S2@10' 2/28/2018 <3 85.8 12.2 37.5 21.1 52.7 <1.3 <5 29.1 46.2 ND 129 <2 21 <10 208 ND NA NA NA

S3@1' 2/28/2018 4.71 216 10.4 40.1 43.3 53.9 75.8 <5 30.6 139 ND 119 6.58 124 <10 470 ND <200 <200 ND

S3@5' 2/28/2018 <3 227 8.2 45.5 21 44.1 <1.3 <5 30.8 47.2 ND 413 <2 <10 <10 554 ND NA NA NA

S3@10' 2/28/2018 <3 122 9.86 39.9 22.4 49.3 <1.3 <5 35.8 45.2 ND 117 <2 <10 <10 309 ND NA NA NA

S4@1' 2/28/2018 <3 179 6.61 25.9 14.7 37.2 <13 6.9 30.3 31.8 ND 188 6.19 133 <10 457 ND <200 <200 ND

S4@5' 2/28/2018 3.31 225 9.05 43.4 24.2 47.7 <1.3 <5 32.8 50 ND 104 <2 20.2 <10 197 ND NA NA NA

S4@10' 2/28/2018 <3 84.3 9.65 44.1 23.5 51.8 <1.3 <5 38.2 50.8 ND 341 <2 <10 <10 981 ND NA NA NA

S5@1' 2/28/2018 4.35 239 12.4 45.5 56.4 50.1 358 <5 39.5 172 ND <100 3.81 42.1 <10 22.2 ND <200 <200 ND

S5@5' 2/28/2018 9.07 155 14.6 42.4 28.4 52.7 1.69 <5 39.7 63.9 ND <100 <2 23.2 <10 55.4 ND NA NA NA

S5@10' 2/28/2018 <3 174 9.86 40.9 23.8 45.4 <1.3 <5 34.7 48 ND <100 <2 <10 <10 124 ND NA NA NA

S6@1' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17.3 49.3 ND NA NA NA

S6@5' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 32.4 ND NA NA NA

S6@10' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 43.4 ND NA NA NA

S7@1' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 25.7 ND NA NA NA

S7@5' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 13.9 ND NA NA NA

S7@10' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 40.6 ND NA NA NA

S8@1' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 15.5 <10 ND NA NA NA

S8@5' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 <10 ND NA NA NA

S8@10' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12.4 21.4 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 13.3 64.9 ND NA NA NA

S9@5' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 56.4 189 ND NA NA NA

S9@9' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 45 132 ND NA NA NA

S10@1' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 4180 ND NA NA NA

S10@5' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 959 ND NA NA NA

S10@10' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 1710 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 1260 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 77 352 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 122 795 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 453 ND NA NA NA

S13@1' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 131 283 ND NA NA NA

S13@5' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 42.3 73.3 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 36.5 50.6 ND NA NA NA

S14@1' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 441 ND NA NA NA

S14@5' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 91.6 167 ND NA NA NA

S14@9' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 34 54.6 ND NA NA NA

S15@7' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 43.2 21.3 ND NA NA NA

[email protected]' 3/29/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 42.7 38.1 ND NA NA NA

S16@1' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 422 ND NA NA NA

S16@5' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 1710 ND NA NA NA

S16@10' 3/28/2018 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10 6810 ND NA NA NA

Notes -

mg/kg - milligrams per kilograms

µg/kg - micrograms per kilogram

NA - not analyzed

ND - not detected

<3 indicates concentration is less than the laboratory reporting limit of 3 mg/kg. 1 San Francisco Regional Water Quality Control Board (RWQCB), Residential Shallow Soil Exposure Environmental Screening Levels, Table S-1, Rev 3 February 2016.

2 San Francisco RWQCB, Commercial/Industrial Shallow Soil Exposure Environmental Screening Levels, Table S-1, Rev 3 February 2016.

200 - Concentration exceeds ESLs for Residential

200 - Concentration exceeds ESLs for both Residential and Commercial

3 Although arsenic concentrations exceed the corresponding residential screening levels, concentrations are within expected background concentrations observed in the San Francisco Bay Area.

SVOCsPetroleum Hydrocarbons

Residential ESLs1

Commercial ESLs2

Metals

DateSample ID

VOCs

14121.001.000

Page 17: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Table B - Summary of Groundwater Analytical Results

Barium Nickel SeleniumOther

MetalsTPH-g TPH-d TPH-mo

1,1-

Dichloropropene

1,2-

Dichloroethane

cis-1,2-

dichloroethylenePCE

trans-1,2-

dichloroethylenetoluene TCE

Other

VOCs

mg/L mg/L mg/L mg/L µg/L mg/L mg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L

1 0.1 0.05 -- 220 0.15 -- -- 0.5 6 5 11 40 5 --

GW-2 2/28/2018 0.098 0.0052 0.14 ND 1120 <0.13 <0.53 <0.56 <21 <21 4200 <21 <0.56 71 ND

GW-5 2/28/2018 0.024 0.011 0.13 ND 209 <0.11 <0.44 <0.56 5.7 6.6 190 6.8 <0.56 70 ND

GW-6 3/28/2018 NA NA NA NA NA NA NA <0.56 <0.56 <0.56 45 <0.56 <0.56 1.3 ND

GW-7 3/28/2018 NA NA NA NA NA NA NA <0.56 <0.56 <0.56 1300 <0.56 <0.56 25 ND

GW-8 3/28/2018 NA NA NA NA NA NA NA <0.56 <0.56 <0.56 <0.5 <0.56 <0.56 <0.5 ND

GW-16 3/28/2018 NA NA NA NA NA NA NA <0.56 <0.56 <0.56 340 <0.56 <0.56 <0.5 ND

CW-GW 3/29/2018 NA NA NA NA NA NA NA 0.54 <0.56 <0.56 <0.5 <0.56 0.38 <0.5 ND

Notes -

NA = not analyzed

ND = non-detectmg/L - miligrams per liter

µg/L - micrograms per liter

<0.11 indicates concentration is less than the laboratory reporting limit of 0.11 mg/L. 1 San Francisco RWQCB Table GW-1, MCL Priority Environmental Screening Levels, Rev 3 February 2016.

Highlighted concentrations exceed ESLs.

Petroleum HydrocarbonsMetals Volatile Organic Compounds

MCL Priority ESLs1

Sample

IDDate

14121.001.000

Page 18: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Table C - Summary of Soil Gas Analytical Results

1,2,4-

Trimethylbenzene

4-Ethyl

Toluene

2-

butanone

Benzene 4-Methyl-2-Pentanone

(MIBK)

Acetone Carbon

Disulfide

Ethyl

Benzene

tert-

butanol

2-

hexanone

Hexane 1,1,2-

Trichloroethane

Toluene naphthalene Total

Xylenes

PCE TPH-

Gasoline

Other

VOCs

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

-- -- 2.60E+06 48 1.60E+06 1.60E+07 -- 560 -- -- -- -- 1.60E+05 41 5.20E+04 240 3.00E+05 --

-- -- 2.20E+07 420 1.30E+07 1.40E+08 -- 4900 -- -- -- -- 1.30E+06 360 4.40E+05 2100 2.50E+06 --

SG-1 2/28/2018 210 160 <8.9 <9.8 480 <130 80 110 <7.6 <10 2100 <14 700 <13 610 22,000 57,900 NDSG-2 2/28/2018 <490 <490 <8.9 <9.8 2300 <130 <310 <430 <7.6 <10 3700 <14 <380 <13 <860 75,000 109,000 ND

SG-3 2/28/2018 <120 <120 <8.9 <9.8 <100 <130 <78 <110 <7.6 <10 <88 <14 <94 <13 <220 14,000 17,000 NDSG-4 2/28/2018 <250 <250 <8.9 <9.8 <210 <130 200 <220 <7.6 <10 590 <14 <190 <13 <440 42,000 43,900 ND

SG-5 2/28/2018 <1800 <1800 <8.9 <9.8 3300 <130 <1200 <1600 <7.6 <10 6100 <14 <1400 <13 <3200 150,000 143,000 ND

SG-6 3/28/2018 <25 <12 <8.9 <9.8 <10 120 55 <11 <7.6 <10 <12 <14 <11 <13 <110 2,800 NA ND

SG-7 3/28/2018 <25 <12 <8.9 <9.8 <10 <130 <7.8 <11 <7.6 <10 <12 <14 <11 <13 <110 25,000 NA ND

SG-8 3/28/2018 <25 <12 8.9 9.8 <10 130 <7.8 <11 <7.6 <10 12 <14 11 <13 <110 620 NA ND

SG-9 3/29/2018 <25 <12 <8.9 <9.8 <10 <130 <7.8 <11 <7.6 <10 <12 <14 <11 <13 <110 21,000 NA ND

SG-10 3/28/2018 <25 <12 <8.9 <9.8 <10 <130 <7.8 <11 <7.6 <10 <12 <14 <11 <13 <110 95,000 NA ND

SG-11 3/28/2018 <25 <12 <8.9 <9.8 1,100 <130 <7.8 <11 <7.6 <10 2,000 <14 <11 <13 140 19,000 NA ND

SG-12 3/29/2018 <25 <12 <8.9 <9.8 <10 <130 <7.8 <11 <7.6 <10 <12 520 <11 <13 <110 29,000 NA ND

CW-SG 3/29/2018 4.2 <2.5 7.9 2.2 16 <130 5.4 <2.2 2.4 6.8 <88 <29 12 2.9 <110 200 NA ND

Notes:

µg/m3 - micrograms per cubic meter

NA = not analyzed

ND = non-detect

<120 indicates value is less than the laboratory reporting limit of 120 µg/m3.

1 San Francisco RWQCB Table SG-1, Vapor Intrusion Residential Environmental Screening Levels, Rev 3 February 2016.

2 San Francisco RWQCB Table SG-1, Vapor Intrusion Commercial/Industrial Environmental Screening Levels, Rev 3 February 2016.

200 - Concentration exceeds ESLs for Residential

200 - Concentration exceeds ESLs for both Residential and Commercial

VOCs

Residential ESLs1

Commercial ESLs2

Sample ID Date

14121.001.000

Page 19: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Table D - Summary of Indoor Air Ambient Analytical Results - PCE and breakdown products only

µg/m3

µg/m3

µg/m3

µg/m3

µg/m3

Vinyl Chloride trans-1,2-Dichloroethene cis-1,2-Dichloroethene TCE PCE

0.0095 83 8.3 0.48 0.48

0.16 350 35 3 2.1

0.17 - - 0.48 11

2.8 - - 3 47

AA-1 3/29/2018 ND 0.0554 ND ND 0.786

AA-2 3/29/2018 ND 0.0554 ND ND 0.99

IA-1 3/28/2018 ND 0.0594 0.0792 0.204 21.4

IA-2 3/28/2018 ND 0.0594 0.135 0.0537 24.3

IA-3 3/28/2018 0.00768 0.0594 0.0317 0.0269 10.9

IA-4 3/28/2018 0.0102 0.0634 0.0198 0.0376 6.03

Notes:

µg/m3 - micrograms per cubic meter

ND = non-detect

200 - Concentration exceeds ESLs for Residential

200 - Concentration exceeds ESLs for both Residential and Commercial

USEPA Residential RSs3

USEPA Commercial RSLs4

3 USEPA Regional Screening Levels (RSLs) for Residential Air, November 2017.

4 USEPA Regional Screening Levels (RSLs) for Commercial Air, November 2017.

Sample ID Date

VOCs

2 San Francisco RWQCB Table IA-1, Indoor Air Direct Exposure Human Health Risk Screening Levels for Commercial/Industrial Exposure, Rev 3 February 2016.

1 San Francisco RWQCB Table IA-1, Indoor Air Direct Exposure Human Health Risk Screening Levels for Residential Exposure, Rev 3 February 2016.

RWQCB Residential ESLs1

RWQCB Commercial ESLs2

14121.001.000

Page 20: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

14121.001.000 April 12, 2018

APPENDIX A Laboratory Analytical Reports

Page 21: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Engeo (San Ramon)

2010 Crow Canyon Place,#250

San Ramon, California 94583

Tel: (925) 866-9000

Fax: (925) 866-0199

RE: 282 S. Montgomery

Torrent Laboratory, Inc. received 9 sample(s) on March 28, 2018 for the analyses presented in the following Report.

Dear Divya Bhargava:

Work Order No.: 1803294

All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date

April 02, 2018

Patti L Sandrock

QA Officer

Page 1 of 36Total Page Count: 36

Page 22: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Date: 4/2/2018

Client: Engeo (San Ramon)

Project: 282 S. Montgomery

Work Order: 1803294

CASE NARRATIVE

No issues encountered with the receiving, preparation, analysis or reporting of the resultsassociated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or fieldblank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Analytical, Inc.

Note for method TO15SIM: Method Blank is only used for Instrument purpose. Canisters areself-certified, and the report for the individually tested canisters can be found on work order"1803300".

Page 2 of 36Total Page Count: 36

Page 23: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803294-001SG 6

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Carbon Disulfide 3.7 16 5510ETO15

Acetone 4.0 120 12010ETO15

Tetrachloroethylene 15 34 280010ETO15

1803294-002SG 7

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Tetrachloroethylene 150 340 25000100ETO15

1803294-003SG 8

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Acetone 2.0 60 1305ETO15

Hexane 2.3 8.8 125ETO15

2-Butanone (MEK) 1.9 7.4 8.95ETO15

Benzene 2.2 8.0 9.85ETO15

Toluene 3.8 9.4 115ETO15

Tetrachloroethylene 7.3 17 6205ETO15

1803294-004SG 10

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Tetrachloroethylene 580 1400 95000400ETO15

1803294-005SG 11

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Hexane 23 88 200050ETO15

4-Methyl-2-Pentanone (MIBK) 37 100 110050ETO15

Tetrachloroethylene 73 170 1900050ETO15

m,p-Xylene 49 110 14050ETO15

Page 3 of 36Total Page Count: 36

Page 24: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803294-006IA 1

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Dichlorodifluoromethane 0.0178 0.0495 1.591TO15SIM

1,3-Butadiene 0.0220 0.0442 0.4771TO15SIM

Bromomethane 0.00815 0.0194 0.09311TO15SIM

Chloroethane 0.00209 0.0132 0.2271TO15SIM

Trichlorofluoromethane 0.0122 0.0281 1.421TO15SIM

1,1-Dichloroethene 0.00671 0.0199 0.08731TO15SIM

Methylene Chloride 0.0145 0.0347 0.8921TO15SIM

Freon 113 0.0129 0.0383 0.8271TO15SIM

trans-1,2-Dichloroethene 0.00372 0.0198 0.05941TO15SIM

MTBE 0.00621 0.0181 0.07581TO15SIM

1,1-Dichloroethane 0.00498 0.0203 0.06081TO15SIM

cis-1,2-Dichloroethene 0.00404 0.0198 0.07921TO15SIM

Ethyl Acetate 0.00331 0.0180 1.741TO15SIM

Chloroform 0.00810 0.0244 0.2641TO15SIM

ETBE 0.00477 0.0209 0.08781TO15SIM

1,2-Dichloroethane (EDC) 0.00498 0.0203 0.06081TO15SIM

1,1,1-Trichloroethane 0.00819 0.0273 1.171TO15SIM

Carbon Tetrachloride 0.00849 0.0315 0.4531TO15SIM

Benzene 0.0335 0.0638 0.9571TO15SIM

Trichloroethylene 0.0112 0.0269 0.2041TO15SIM

Bromodichloromethane 0.00556 0.0335 0.07371TO15SIM

1,4-Dioxane 0.0107 0.0180 0.1301TO15SIM

1,1,2-Trichloroethane 0.00322 0.0273 1.211TO15SIM

1,2-Dibromoethane (EDB) 0.00415 0.0384 0.06141TO15SIM

Chlorobenzene 0.00230 0.00460 0.01381TO15SIM

Ethyl Benzene 0.00234 0.0217 1.831TO15SIM

Styrene 0.00311 0.0213 0.5961TO15SIM

o-Xylene 0.00221 0.0217 1.881TO15SIM

4-Ethyl toluene 0.00344 0.0246 0.5261TO15SIM

1,3,5-Trimethylbenzene 0.00354 0.0246 0.4971TO15SIM

1,2,4-Trimethylbenzene 0.00335 0.0246 1.661TO15SIM

1,4-Dichlorobenzene 0.00517 0.0301 0.1201TO15SIM

Naphthalene 0.00472 0.0262 0.3881TO15SIM

Chloromethane 0.0865 0.207 9.8710TO15SIM

2-Propanol (Isopropyl Alcohol) 0.155 1.23 8.6310TO15SIM

tert-Butanol 0.115 0.303 4.1810TO15SIM

Carbon disulfide 0.0283 0.156 2.7410TO15SIM

Hexane 0.0451 0.176 8.4510TO15SIM

2-Butanone (MEK) 0.0271 0.148 2.5410TO15SIM

Tetrahydrofuran 0.286 0.590 1.4210TO15SIM

Toluene 0.0415 0.189 3.8110TO15SIM

Tetrachloroethylene 0.257 0.678 21.410TO15SIM

m,p-Xylene 0.0265 0.434 4.8610TO15SIM

Acetone 0.514 0.952 29.120TO15SIM

Page 4 of 36Total Page Count: 36

Page 25: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803294-007IA 2

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Dichlorodifluoromethane 0.0178 0.0495 1.571TO15SIM

1,3-Butadiene 0.0220 0.0442 0.5331TO15SIM

Bromomethane 0.00815 0.0194 0.06981TO15SIM

Chloroethane 0.00209 0.0132 0.01321TO15SIM

Trichlorofluoromethane 0.0122 0.0281 1.521TO15SIM

1,1-Dichloroethene 0.00671 0.0199 0.09131TO15SIM

Methylene Chloride 0.0145 0.0347 0.6591TO15SIM

Freon 113 0.0129 0.0383 0.7281TO15SIM

Carbon disulfide 0.00283 0.0156 0.05601TO15SIM

trans-1,2-Dichloroethene 0.00372 0.0198 0.05941TO15SIM

1,1-Dichloroethane 0.00498 0.0203 0.05271TO15SIM

cis-1,2-Dichloroethene 0.00404 0.0198 0.1351TO15SIM

Ethyl Acetate 0.00331 0.0180 1.681TO15SIM

Chloroform 0.00810 0.0244 0.2491TO15SIM

ETBE 0.00477 0.0209 0.1421TO15SIM

1,2-Dichloroethane (EDC) 0.00498 0.0203 0.06081TO15SIM

Carbon Tetrachloride 0.00849 0.0315 0.4911TO15SIM

Benzene 0.0335 0.0638 1.101TO15SIM

1,2-Dichloropropane 0.00471 0.0231 0.02311TO15SIM

Trichloroethylene 0.0112 0.0269 0.05371TO15SIM

Bromodichloromethane 0.00556 0.0335 0.06701TO15SIM

1,4-Dioxane 0.0107 0.0180 0.1731TO15SIM

1,1,2-Trichloroethane 0.00322 0.0273 0.5301TO15SIM

Chlorobenzene 0.00230 0.00460 0.01381TO15SIM

Ethyl Benzene 0.00234 0.0217 1.241TO15SIM

m,p-Xylene 0.00265 0.0434 3.911TO15SIM

Styrene 0.00311 0.0213 0.7241TO15SIM

o-Xylene 0.00221 0.0217 1.121TO15SIM

4-Ethyl toluene 0.00344 0.0246 1.211TO15SIM

1,3,5-Trimethylbenzene 0.00354 0.0246 0.3151TO15SIM

1,2,4-Trimethylbenzene 0.00335 0.0246 1.031TO15SIM

1,4-Dichlorobenzene 0.00517 0.0301 0.1741TO15SIM

Naphthalene 0.00472 0.0262 0.4301TO15SIM

Chloromethane 0.0865 0.207 9.9610TO15SIM

2-Propanol (Isopropyl Alcohol) 0.155 1.23 7.1610TO15SIM

tert-Butanol 0.115 0.303 0.72710TO15SIM

Hexane 0.0451 0.176 6.6910TO15SIM

2-Butanone (MEK) 0.0271 0.148 2.3010TO15SIM

Tetrahydrofuran 0.286 0.590 1.5910TO15SIM

Toluene 0.0415 0.189 3.5410TO15SIM

2-Hexanone 0.0890 0.205 1.3910TO15SIM

Tetrachloroethylene 0.257 0.678 24.310TO15SIM

Acetone 0.514 0.952 24.620TO15SIM

Page 5 of 36Total Page Count: 36

Page 26: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803294-008IA 3

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Dichlorodifluoromethane 0.0178 0.0495 1.581TO15SIM

Vinyl Chloride 0.00366 0.00768 0.007681TO15SIM

1,3-Butadiene 0.0220 0.0442 0.3431TO15SIM

Bromomethane 0.00815 0.0194 0.09311TO15SIM

Chloroethane 0.00209 0.0132 0.01851TO15SIM

Trichlorofluoromethane 0.0122 0.0281 1.601TO15SIM

1,1-Dichloroethene 0.00671 0.0199 0.08731TO15SIM

Methylene Chloride 0.0145 0.0347 0.6451TO15SIM

Freon 113 0.0129 0.0383 0.7581TO15SIM

Carbon disulfide 0.00283 0.0156 0.05911TO15SIM

trans-1,2-Dichloroethene 0.00372 0.0198 0.05941TO15SIM

1,1-Dichloroethane 0.00498 0.0203 0.02031TO15SIM

cis-1,2-Dichloroethene 0.00404 0.0198 0.03171TO15SIM

Ethyl Acetate 0.00331 0.0180 1.331TO15SIM

Chloroform 0.00810 0.0244 0.2241TO15SIM

ETBE 0.00477 0.0209 0.2511TO15SIM

1,2-Dichloroethane (EDC) 0.00498 0.0203 0.06081TO15SIM

1,1,1-Trichloroethane 0.00819 0.0273 0.02731TO15SIM

Carbon Tetrachloride 0.00849 0.0315 0.5541TO15SIM

Benzene 0.0335 0.0638 1.311TO15SIM

Bromodichloromethane 0.00556 0.0335 0.04021TO15SIM

1,4-Dioxane 0.0107 0.0180 0.1221TO15SIM

1,1,2-Trichloroethane 0.00322 0.0273 0.1691TO15SIM

Chlorobenzene 0.00230 0.00460 0.009201TO15SIM

Ethyl Benzene 0.00234 0.0217 0.8811TO15SIM

m,p-Xylene 0.00265 0.0434 2.801TO15SIM

Styrene 0.00311 0.0213 0.4091TO15SIM

o-Xylene 0.00221 0.0217 0.8721TO15SIM

4-Ethyl toluene 0.00344 0.0246 0.9151TO15SIM

1,3,5-Trimethylbenzene 0.00354 0.0246 0.2901TO15SIM

1,2,4-Trimethylbenzene 0.00335 0.0246 0.8121TO15SIM

1,4-Dichlorobenzene 0.00517 0.0301 0.1321TO15SIM

Naphthalene 0.00472 0.0262 0.4451TO15SIM

Chloromethane 0.0865 0.207 4.4310TO15SIM

tert-Butanol 0.115 0.303 1.0910TO15SIM

Hexane 0.0451 0.176 2.2510TO15SIM

2-Butanone (MEK) 0.0271 0.148 1.7110TO15SIM

Tetrahydrofuran 0.286 0.590 1.2110TO15SIM

Toluene 0.0415 0.189 2.9410TO15SIM

2-Hexanone 0.0890 0.205 1.2710TO15SIM

Tetrachloroethylene 0.257 0.678 10.910TO15SIM

2-Propanol (Isopropyl Alcohol) 0.311 2.46 17.620TO15SIM

Acetone 0.514 0.952 20.620TO15SIM

Page 6 of 36Total Page Count: 36

Page 27: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803294-009IA 4

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Dichlorodifluoromethane 0.0178 0.0495 1.741TO15SIM

Vinyl Chloride 0.00366 0.00768 0.01021TO15SIM

1,3-Butadiene 0.0220 0.0442 0.4271TO15SIM

Bromomethane 0.00815 0.0194 0.1511TO15SIM

Trichlorofluoromethane 0.0122 0.0281 1.591TO15SIM

1,1-Dichloroethene 0.00671 0.0199 0.08731TO15SIM

tert-Butanol 0.0115 0.0303 1.511TO15SIM

Methylene Chloride 0.0145 0.0347 0.6661TO15SIM

Freon 113 0.0129 0.0383 0.7741TO15SIM

Carbon disulfide 0.00283 0.0156 0.02801TO15SIM

trans-1,2-Dichloroethene 0.00372 0.0198 0.06341TO15SIM

cis-1,2-Dichloroethene 0.00404 0.0198 0.01981TO15SIM

Ethyl Acetate 0.00331 0.0180 1.411TO15SIM

Chloroform 0.00810 0.0244 0.2201TO15SIM

ETBE 0.00477 0.0209 0.2221TO15SIM

1,2-Dichloroethane (EDC) 0.00498 0.0203 0.06481TO15SIM

Carbon Tetrachloride 0.00849 0.0315 0.5281TO15SIM

Benzene 0.0335 0.0638 1.231TO15SIM

1,2-Dichloropropane 0.00471 0.0231 0.02311TO15SIM

Trichloroethylene 0.0112 0.0269 0.03761TO15SIM

Bromodichloromethane 0.00556 0.0335 0.03351TO15SIM

1,4-Dioxane 0.0107 0.0180 0.2271TO15SIM

1,1,2-Trichloroethane 0.00322 0.0273 0.2131TO15SIM

Chlorobenzene 0.00230 0.00460 0.01381TO15SIM

Ethyl Benzene 0.00234 0.0217 1.031TO15SIM

m,p-Xylene 0.00265 0.0434 3.281TO15SIM

Styrene 0.00311 0.0213 0.3711TO15SIM

o-Xylene 0.00221 0.0217 1.001TO15SIM

4-Ethyl toluene 0.00344 0.0246 0.9501TO15SIM

1,3,5-Trimethylbenzene 0.00354 0.0246 0.3001TO15SIM

1,2,4-Trimethylbenzene 0.00335 0.0246 0.7771TO15SIM

1,4-Dichlorobenzene 0.00517 0.0301 0.1141TO15SIM

Naphthalene 0.00472 0.0262 0.3041TO15SIM

Chloromethane 0.0865 0.207 7.2210TO15SIM

Hexane 0.0451 0.176 1.7610TO15SIM

2-Butanone (MEK) 0.0271 0.148 1.6810TO15SIM

Tetrahydrofuran 0.286 0.590 1.5310TO15SIM

Toluene 0.0415 0.189 2.9010TO15SIM

2-Hexanone 0.0890 0.205 1.1910TO15SIM

Tetrachloroethylene 0.257 0.678 6.0310TO15SIM

2-Propanol (Isopropyl Alcohol) 0.311 2.46 11.320TO15SIM

Acetone 0.514 0.952 21.120TO15SIM

Page 7 of 36Total Page Count: 36

Page 28: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.1

Certified Clean WO # :

Collection Volume (L):

A7461Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:45

14121.001.000

282 S. Montgomery

SG 6

AirSample Matrix:

Lab Sample ID: 1803294-001A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 10.00 03/29/1816 25 NDND 430642ETO15 22:12 BA

1,1-Difluoroethane 10.00 03/29/183.5 140 NDND 430642ETO15 22:12 BA

1,2-Dichlorotetrafluoroethane 10.00 03/29/18280 560 NDND 430642ETO15 22:12 BA

Chloromethane 10.00 03/29/1820 41 NDND 430642ETO15 22:12 BA

Vinyl Chloride 10.00 03/29/182.3 13 NDND 430642ETO15 22:12 BA

1,3-Butadiene 10.00 03/29/183.4 11 NDND 430642ETO15 22:12 BA

Bromomethane 10.00 03/29/186.6 19 NDND 430642ETO15 22:12 BA

Chloroethane 10.00 03/29/188.1 13 NDND 430642ETO15 22:12 BA

Trichlorofluoromethane 10.00 03/29/185.6 28 NDND 430642ETO15 22:12 BA

1,1-Dichloroethene 10.00 03/29/188.3 20 NDND 430642ETO15 22:12 BA

Freon 113 10.00 03/29/1810 38 NDND 430642ETO15 22:12 BA

Carbon Disulfide 10.00 03/29/183.7 16 17.6855 430642ETO15 22:12 BA

2-Propanol (Isopropyl Alcohol) 10.00 03/29/1813 120 NDND 430642ETO15 22:12 BA

Methylene Chloride 10.00 03/29/187.0 100 NDND 430642ETO15 22:12 BA

Acetone 10.00 03/29/184.0 120 50.42120 430642ETO15 22:12 BA

trans-1,2-Dichloroethene 10.00 03/29/184.8 20 NDND 430642ETO15 22:12 BA

Hexane 10.00 03/29/184.6 18 NDND 430642ETO15 22:12 BA

MTBE 10.00 03/29/184.4 18 NDND 430642ETO15 22:12 BA

tert-Butanol 10.00 03/29/186.2 15 NDND 430642ETO15 22:12 BA

Diisopropyl ether (DIPE) 10.00 03/29/187.4 21 NDND 430642ETO15 22:12 BA

1,1-Dichloroethane 10.00 03/29/185.4 20 NDND 430642ETO15 22:12 BA

ETBE 10.00 03/29/183.3 21 NDND 430642ETO15 22:12 BA

cis-1,2-Dichloroethene 10.00 03/29/188.3 20 NDND 430642ETO15 22:12 BA

Chloroform 10.00 03/29/189.7 24 NDND 430642ETO15 22:12 BA

Vinyl Acetate 10.00 03/29/187.6 18 NDND 430642ETO15 22:12 BA

Carbon Tetrachloride 10.00 03/29/1811 31 NDND 430642ETO15 22:12 BA

1,1,1-Trichloroethane 10.00 03/29/187.9 27 NDND 430642ETO15 22:12 BA

2-Butanone (MEK) 10.00 03/29/183.9 15 NDND 430642ETO15 22:12 BA

Ethyl Acetate 10.00 03/29/184.8 18 NDND 430642ETO15 22:12 BA

Tetrahydrofuran 10.00 03/29/184.5 15 NDND 430642ETO15 22:12 BA

Benzene 10.00 03/29/184.4 16 NDND 430642ETO15 22:12 BA

TAME 10.00 03/29/186.7 21 NDND 430642ETO15 22:12 BA

1,2-Dichloroethane (EDC) 10.00 03/29/184.2 20 NDND 430642ETO15 22:12 BA

Page 8 of 36Total Page Count: 36

Page 29: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.1

Certified Clean WO # :

Collection Volume (L):

A7461Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:45

14121.001.000

282 S. Montgomery

SG 6

AirSample Matrix:

Lab Sample ID: 1803294-001A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 10.00 03/29/188.1 27 NDND 430642ETO15 22:12 BA

1,2-Dichloropropane 10.00 03/29/187.6 23 NDND 430642ETO15 22:12 BA

Bromodichloromethane 10.00 03/29/187.4 34 NDND 430642ETO15 22:12 BA

1,4-Dioxane 10.00 03/29/1818 36 NDND 430642ETO15 22:12 BA

trans-1,3-Dichloropropene 10.00 03/29/1811 23 NDND 430642ETO15 22:12 BA

Toluene 10.00 03/29/187.5 19 NDND 430642ETO15 22:12 BA

4-Methyl-2-Pentanone (MIBK) 10.00 03/29/187.5 21 NDND 430642ETO15 22:12 BA

cis-1,3-Dichloropropene 10.00 03/29/184.2 23 NDND 430642ETO15 22:12 BA

Tetrachloroethylene 10.00 03/29/1815 34 412.982800 430642ETO15 22:12 BA

1,1,2-Trichloroethane 10.00 03/29/185.8 27 NDND 430642ETO15 22:12 BA

Dibromochloromethane 10.00 03/29/1811 43 NDND 430642ETO15 22:12 BA

1,2-Dibromoethane (EDB) 10.00 03/29/187.4 38 NDND 430642ETO15 22:12 BA

2-Hexanone 10.00 03/29/186.5 21 NDND 430642ETO15 22:12 BA

Ethyl Benzene 10.00 03/29/186.3 22 NDND 430642ETO15 22:12 BA

Chlorobenzene 10.00 03/29/186.0 23 NDND 430642ETO15 22:12 BA

1,1,1,2-Tetrachloroethane 10.00 03/29/188.4 34 NDND 430642ETO15 22:12 BA

m,p-Xylene 10.00 03/29/189.8 22 NDND 430642ETO15 22:12 BA

o-Xylene 10.00 03/29/183.0 22 NDND 430642ETO15 22:12 BA

Styrene 10.00 03/29/184.6 21 NDND 430642ETO15 22:12 BA

Bromoform 10.00 03/29/1813 52 NDND 430642ETO15 22:12 BA

1,1,2,2-Tetrachloroethane 10.00 03/29/188.2 34 NDND 430642ETO15 22:12 BA

4-Ethyl Toluene 10.00 03/29/185.5 25 NDND 430642ETO15 22:12 BA

1,3,5-Trimethylbenzene 10.00 03/29/183.0 25 NDND 430642ETO15 22:12 BA

1,2,4-Trimethylbenzene 10.00 03/29/186.0 25 NDND 430642ETO15 22:12 BA

1,4-Dichlorobenzene 10.00 03/29/187.5 30 NDND 430642ETO15 22:12 BA

1,3-Dichlorobenzene 10.00 03/29/1813 30 NDND 430642ETO15 22:12 BA

1,2-Dichlorobenzene 10.00 03/29/1811 30 NDND 430642ETO15 22:12 BA

Hexachlorobutadiene 10.00 03/29/1819 53 NDND 430642ETO15 22:12 BA

1,2,4-Trichlorobenzene 10.00 03/29/1822 37 NDND 430642ETO15 22:12 BA

Naphthalene 10.00 03/29/1813 26 NDND 430642ETO15 22:12 BA

(S) 4-Bromofluorobenzene 10.00 03/29/1850 150 89 % 430642ETO15 22:12 BA

Page 9 of 36Total Page Count: 36

Page 30: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.3

Certified Clean WO # :

Collection Volume (L):

6125Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:20

14121.001.000

282 S. Montgomery

SG 7

AirSample Matrix:

Lab Sample ID: 1803294-002A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 100.0 03/29/18160 250 NDND 430642ETO15 22:40 BA

1,1-Difluoroethane 100.0 03/29/1835 1400 NDND 430642ETO15 22:40 BA

1,2-Dichlorotetrafluoroethane 100.0 03/29/182800 5600 NDND 430642ETO15 22:40 BA

Chloromethane 100.0 03/29/18200 410 NDND 430642ETO15 22:40 BA

Vinyl Chloride 100.0 03/29/1823 130 NDND 430642ETO15 22:40 BA

1,3-Butadiene 100.0 03/29/1834 110 NDND 430642ETO15 22:40 BA

Bromomethane 100.0 03/29/1866 190 NDND 430642ETO15 22:40 BA

Chloroethane 100.0 03/29/1881 130 NDND 430642ETO15 22:40 BA

Trichlorofluoromethane 100.0 03/29/1856 280 NDND 430642ETO15 22:40 BA

1,1-Dichloroethene 100.0 03/29/1883 200 NDND 430642ETO15 22:40 BA

Freon 113 100.0 03/29/18100 380 NDND 430642ETO15 22:40 BA

Carbon Disulfide 100.0 03/29/1837 160 NDND 430642ETO15 22:40 BA

2-Propanol (Isopropyl Alcohol) 100.0 03/29/18130 1200 NDND 430642ETO15 22:40 BA

Methylene Chloride 100.0 03/29/1870 1000 NDND 430642ETO15 22:40 BA

Acetone 100.0 03/29/1840 1200 NDND 430642ETO15 22:40 BA

trans-1,2-Dichloroethene 100.0 03/29/1848 200 NDND 430642ETO15 22:40 BA

Hexane 100.0 03/29/1846 180 NDND 430642ETO15 22:40 BA

MTBE 100.0 03/29/1844 180 NDND 430642ETO15 22:40 BA

tert-Butanol 100.0 03/29/1862 150 NDND 430642ETO15 22:40 BA

Diisopropyl ether (DIPE) 100.0 03/29/1874 210 NDND 430642ETO15 22:40 BA

1,1-Dichloroethane 100.0 03/29/1854 200 NDND 430642ETO15 22:40 BA

ETBE 100.0 03/29/1833 210 NDND 430642ETO15 22:40 BA

cis-1,2-Dichloroethene 100.0 03/29/1883 200 NDND 430642ETO15 22:40 BA

Chloroform 100.0 03/29/1897 240 NDND 430642ETO15 22:40 BA

Vinyl Acetate 100.0 03/29/1876 180 NDND 430642ETO15 22:40 BA

Carbon Tetrachloride 100.0 03/29/18110 310 NDND 430642ETO15 22:40 BA

1,1,1-Trichloroethane 100.0 03/29/1879 270 NDND 430642ETO15 22:40 BA

2-Butanone (MEK) 100.0 03/29/1839 150 NDND 430642ETO15 22:40 BA

Ethyl Acetate 100.0 03/29/1848 180 NDND 430642ETO15 22:40 BA

Tetrahydrofuran 100.0 03/29/1845 150 NDND 430642ETO15 22:40 BA

Benzene 100.0 03/29/1844 160 NDND 430642ETO15 22:40 BA

TAME 100.0 03/29/1867 210 NDND 430642ETO15 22:40 BA

1,2-Dichloroethane (EDC) 100.0 03/29/1842 200 NDND 430642ETO15 22:40 BA

Page 10 of 36Total Page Count: 36

Page 31: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.3

Certified Clean WO # :

Collection Volume (L):

6125Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:20

14121.001.000

282 S. Montgomery

SG 7

AirSample Matrix:

Lab Sample ID: 1803294-002A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 100.0 03/29/1881 270 NDND 430642ETO15 22:40 BA

1,2-Dichloropropane 100.0 03/29/1876 230 NDND 430642ETO15 22:40 BA

Bromodichloromethane 100.0 03/29/1874 340 NDND 430642ETO15 22:40 BA

1,4-Dioxane 100.0 03/29/18180 360 NDND 430642ETO15 22:40 BA

trans-1,3-Dichloropropene 100.0 03/29/18110 230 NDND 430642ETO15 22:40 BA

Toluene 100.0 03/29/1875 190 NDND 430642ETO15 22:40 BA

4-Methyl-2-Pentanone (MIBK) 100.0 03/29/1875 210 NDND 430642ETO15 22:40 BA

cis-1,3-Dichloropropene 100.0 03/29/1842 230 NDND 430642ETO15 22:40 BA

Tetrachloroethylene 100.0 03/29/18150 340 3,687.3225000 430642ETO15 22:40 BA

1,1,2-Trichloroethane 100.0 03/29/1858 270 NDND 430642ETO15 22:40 BA

Dibromochloromethane 100.0 03/29/18110 430 NDND 430642ETO15 22:40 BA

1,2-Dibromoethane (EDB) 100.0 03/29/1874 380 NDND 430642ETO15 22:40 BA

2-Hexanone 100.0 03/29/1865 210 NDND 430642ETO15 22:40 BA

Ethyl Benzene 100.0 03/29/1863 220 NDND 430642ETO15 22:40 BA

Chlorobenzene 100.0 03/29/1860 230 NDND 430642ETO15 22:40 BA

1,1,1,2-Tetrachloroethane 100.0 03/29/1884 340 NDND 430642ETO15 22:40 BA

m,p-Xylene 100.0 03/29/1898 220 NDND 430642ETO15 22:40 BA

o-Xylene 100.0 03/29/1830 220 NDND 430642ETO15 22:40 BA

Styrene 100.0 03/29/1846 210 NDND 430642ETO15 22:40 BA

Bromoform 100.0 03/29/18130 520 NDND 430642ETO15 22:40 BA

1,1,2,2-Tetrachloroethane 100.0 03/29/1882 340 NDND 430642ETO15 22:40 BA

4-Ethyl Toluene 100.0 03/29/1855 250 NDND 430642ETO15 22:40 BA

1,3,5-Trimethylbenzene 100.0 03/29/1830 250 NDND 430642ETO15 22:40 BA

1,2,4-Trimethylbenzene 100.0 03/29/1860 250 NDND 430642ETO15 22:40 BA

1,4-Dichlorobenzene 100.0 03/29/1875 300 NDND 430642ETO15 22:40 BA

1,3-Dichlorobenzene 100.0 03/29/18130 300 NDND 430642ETO15 22:40 BA

1,2-Dichlorobenzene 100.0 03/29/18110 300 NDND 430642ETO15 22:40 BA

Hexachlorobutadiene 100.0 03/29/18190 530 NDND 430642ETO15 22:40 BA

1,2,4-Trichlorobenzene 100.0 03/29/18220 370 NDND 430642ETO15 22:40 BA

Naphthalene 100.0 03/29/18130 260 NDND 430642ETO15 22:40 BA

(S) 4-Bromofluorobenzene 100.0 03/29/1850 150 82 % 430642ETO15 22:40 BA

Page 11 of 36Total Page Count: 36

Page 32: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.5

Certified Clean WO # :

Collection Volume (L):

6315Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

SG 8

AirSample Matrix:

Lab Sample ID: 1803294-003A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 5.00 03/29/187.8 12 NDND 430642ETO15 23:07 BA

1,1-Difluoroethane 5.00 03/29/181.7 68 NDND 430642ETO15 23:07 BA

1,2-Dichlorotetrafluoroethane 5.00 03/29/18140 280 NDND 430642ETO15 23:07 BA

Chloromethane 5.00 03/29/1810 21 NDND 430642ETO15 23:07 BA

Vinyl Chloride 5.00 03/29/181.1 6.4 NDND 430642ETO15 23:07 BA

1,3-Butadiene 5.00 03/29/181.7 5.5 NDND 430642ETO15 23:07 BA

Bromomethane 5.00 03/29/183.3 9.7 NDND 430642ETO15 23:07 BA

Chloroethane 5.00 03/29/184.1 6.6 NDND 430642ETO15 23:07 BA

Trichlorofluoromethane 5.00 03/29/182.8 14 NDND 430642ETO15 23:07 BA

1,1-Dichloroethene 5.00 03/29/184.1 9.9 NDND 430642ETO15 23:07 BA

Freon 113 5.00 03/29/185.1 19 NDND 430642ETO15 23:07 BA

Carbon Disulfide 5.00 03/29/181.9 7.8 NDND 430642ETO15 23:07 BA

2-Propanol (Isopropyl Alcohol) 5.00 03/29/186.4 62 NDND 430642ETO15 23:07 BA

Methylene Chloride 5.00 03/29/183.5 52 NDND 430642ETO15 23:07 BA

Acetone 5.00 03/29/182.0 60 54.62130 430642ETO15 23:07 BA

trans-1,2-Dichloroethene 5.00 03/29/182.4 9.9 NDND 430642ETO15 23:07 BA

Hexane 5.00 03/29/182.3 8.8 3.4112 430642ETO15 23:07 BA

MTBE 5.00 03/29/182.2 9.0 NDND 430642ETO15 23:07 BA

tert-Butanol 5.00 03/29/183.1 7.6 NDND 430642ETO15 23:07 BA

Diisopropyl ether (DIPE) 5.00 03/29/183.7 10 NDND 430642ETO15 23:07 BA

1,1-Dichloroethane 5.00 03/29/182.7 10 NDND 430642ETO15 23:07 BA

ETBE 5.00 03/29/181.6 10 NDND 430642ETO15 23:07 BA

cis-1,2-Dichloroethene 5.00 03/29/184.2 9.9 NDND 430642ETO15 23:07 BA

Chloroform 5.00 03/29/184.8 12 NDND 430642ETO15 23:07 BA

Vinyl Acetate 5.00 03/29/183.8 8.8 NDND 430642ETO15 23:07 BA

Carbon Tetrachloride 5.00 03/29/185.5 16 NDND 430642ETO15 23:07 BA

1,1,1-Trichloroethane 5.00 03/29/184.0 14 NDND 430642ETO15 23:07 BA

2-Butanone (MEK) 5.00 03/29/181.9 7.4 3.028.9 430642ETO15 23:07 BA

Ethyl Acetate 5.00 03/29/182.4 9.0 NDND 430642ETO15 23:07 BA

Tetrahydrofuran 5.00 03/29/182.2 7.4 NDND 430642ETO15 23:07 BA

Benzene 5.00 03/29/182.2 8.0 3.079.8 430642ETO15 23:07 BA

TAME 5.00 03/29/183.4 10 NDND 430642ETO15 23:07 BA

1,2-Dichloroethane (EDC) 5.00 03/29/182.1 10 NDND 430642ETO15 23:07 BA

Page 12 of 36Total Page Count: 36

Page 33: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.5

Certified Clean WO # :

Collection Volume (L):

6315Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

SG 8

AirSample Matrix:

Lab Sample ID: 1803294-003A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 5.00 03/29/184.0 13 NDND 430642ETO15 23:07 BA

1,2-Dichloropropane 5.00 03/29/183.8 12 NDND 430642ETO15 23:07 BA

Bromodichloromethane 5.00 03/29/183.7 17 NDND 430642ETO15 23:07 BA

1,4-Dioxane 5.00 03/29/189.0 18 NDND 430642ETO15 23:07 BA

trans-1,3-Dichloropropene 5.00 03/29/185.3 11 NDND 430642ETO15 23:07 BA

Toluene 5.00 03/29/183.8 9.4 2.9211 430642ETO15 23:07 BA

4-Methyl-2-Pentanone (MIBK) 5.00 03/29/183.7 10 NDND 430642ETO15 23:07 BA

cis-1,3-Dichloropropene 5.00 03/29/182.1 11 NDND 430642ETO15 23:07 BA

Tetrachloroethylene 5.00 03/29/187.3 17 91.45620 430642ETO15 23:07 BA

1,1,2-Trichloroethane 5.00 03/29/182.9 14 NDND 430642ETO15 23:07 BA

Dibromochloromethane 5.00 03/29/185.6 21 NDND 430642ETO15 23:07 BA

1,2-Dibromoethane (EDB) 5.00 03/29/183.7 19 NDND 430642ETO15 23:07 BA

2-Hexanone 5.00 03/29/183.3 10 NDND 430642ETO15 23:07 BA

Ethyl Benzene 5.00 03/29/183.1 11 NDND 430642ETO15 23:07 BA

Chlorobenzene 5.00 03/29/183.0 12 NDND 430642ETO15 23:07 BA

1,1,1,2-Tetrachloroethane 5.00 03/29/184.2 17 NDND 430642ETO15 23:07 BA

m,p-Xylene 5.00 03/29/184.9 11 NDND 430642ETO15 23:07 BA

o-Xylene 5.00 03/29/181.5 11 NDND 430642ETO15 23:07 BA

Styrene 5.00 03/29/182.3 11 NDND 430642ETO15 23:07 BA

Bromoform 5.00 03/29/186.5 26 NDND 430642ETO15 23:07 BA

1,1,2,2-Tetrachloroethane 5.00 03/29/184.1 17 NDND 430642ETO15 23:07 BA

4-Ethyl Toluene 5.00 03/29/182.7 12 NDND 430642ETO15 23:07 BA

1,3,5-Trimethylbenzene 5.00 03/29/181.5 12 NDND 430642ETO15 23:07 BA

1,2,4-Trimethylbenzene 5.00 03/29/183.0 12 NDND 430642ETO15 23:07 BA

1,4-Dichlorobenzene 5.00 03/29/183.7 15 NDND 430642ETO15 23:07 BA

1,3-Dichlorobenzene 5.00 03/29/186.7 15 NDND 430642ETO15 23:07 BA

1,2-Dichlorobenzene 5.00 03/29/185.3 15 NDND 430642ETO15 23:07 BA

Hexachlorobutadiene 5.00 03/29/189.3 27 NDND 430642ETO15 23:07 BA

1,2,4-Trichlorobenzene 5.00 03/29/1811 19 NDND 430642ETO15 23:07 BA

Naphthalene 5.00 03/29/186.4 13 NDND 430642ETO15 23:07 BA

(S) 4-Bromofluorobenzene 5.00 03/29/1850 150 88 % 430642ETO15 23:07 BA

Page 13 of 36Total Page Count: 36

Page 34: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.7

Certified Clean WO # :

Collection Volume (L):

N1436Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:50

14121.001.000

282 S. Montgomery

SG 10

AirSample Matrix:

Lab Sample ID: 1803294-004A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 400.0 03/30/18630 990 NDND 430642ETO15 10:54 BA

1,1-Difluoroethane 400.0 03/30/18140 5400 NDND 430642ETO15 10:54 BA

1,2-Dichlorotetrafluoroethane 400.0 03/30/1811000 22000 NDND 430642ETO15 10:54 BA

Chloromethane 400.0 03/30/18820 1700 NDND 430642ETO15 10:54 BA

Vinyl Chloride 400.0 03/30/1890 510 NDND 430642ETO15 10:54 BA

1,3-Butadiene 400.0 03/30/18140 440 NDND 430642ETO15 10:54 BA

Bromomethane 400.0 03/30/18260 780 NDND 430642ETO15 10:54 BA

Chloroethane 400.0 03/30/18330 530 NDND 430642ETO15 10:54 BA

Trichlorofluoromethane 400.0 03/30/18220 1100 NDND 430642ETO15 10:54 BA

1,1-Dichloroethene 400.0 03/30/18330 790 NDND 430642ETO15 10:54 BA

Freon 113 400.0 03/30/18410 1500 NDND 430642ETO15 10:54 BA

Carbon Disulfide 400.0 03/30/18150 620 NDND 430642ETO15 10:54 BA

2-Propanol (Isopropyl Alcohol) 400.0 03/30/18510 4900 NDND 430642ETO15 10:54 BA

Methylene Chloride 400.0 03/30/18280 4200 NDND 430642ETO15 10:54 BA

Acetone 400.0 03/30/18160 4800 NDND 430642ETO15 10:54 BA

trans-1,2-Dichloroethene 400.0 03/30/18190 790 NDND 430642ETO15 10:54 BA

Hexane 400.0 03/30/18190 700 NDND 430642ETO15 10:54 BA

MTBE 400.0 03/30/18180 720 NDND 430642ETO15 10:54 BA

tert-Butanol 400.0 03/30/18250 610 NDND 430642ETO15 10:54 BA

Diisopropyl ether (DIPE) 400.0 03/30/18290 840 NDND 430642ETO15 10:54 BA

1,1-Dichloroethane 400.0 03/30/18220 810 NDND 430642ETO15 10:54 BA

ETBE 400.0 03/30/18130 840 NDND 430642ETO15 10:54 BA

cis-1,2-Dichloroethene 400.0 03/30/18330 790 NDND 430642ETO15 10:54 BA

Chloroform 400.0 03/30/18390 980 NDND 430642ETO15 10:54 BA

Vinyl Acetate 400.0 03/30/18300 700 NDND 430642ETO15 10:54 BA

Carbon Tetrachloride 400.0 03/30/18440 1300 NDND 430642ETO15 10:54 BA

1,1,1-Trichloroethane 400.0 03/30/18320 1100 NDND 430642ETO15 10:54 BA

2-Butanone (MEK) 400.0 03/30/18160 590 NDND 430642ETO15 10:54 BA

Ethyl Acetate 400.0 03/30/18190 720 NDND 430642ETO15 10:54 BA

Tetrahydrofuran 400.0 03/30/18180 590 NDND 430642ETO15 10:54 BA

Benzene 400.0 03/30/18170 640 NDND 430642ETO15 10:54 BA

TAME 400.0 03/30/18270 840 NDND 430642ETO15 10:54 BA

1,2-Dichloroethane (EDC) 400.0 03/30/18170 810 NDND 430642ETO15 10:54 BA

Page 14 of 36Total Page Count: 36

Page 35: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.7

Certified Clean WO # :

Collection Volume (L):

N1436Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:50

14121.001.000

282 S. Montgomery

SG 10

AirSample Matrix:

Lab Sample ID: 1803294-004A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 400.0 03/30/18320 1100 NDND 430642ETO15 10:54 BA

1,2-Dichloropropane 400.0 03/30/18300 920 NDND 430642ETO15 10:54 BA

Bromodichloromethane 400.0 03/30/18300 1300 NDND 430642ETO15 10:54 BA

1,4-Dioxane 400.0 03/30/18720 1400 NDND 430642ETO15 10:54 BA

trans-1,3-Dichloropropene 400.0 03/30/18420 910 NDND 430642ETO15 10:54 BA

Toluene 400.0 03/30/18300 750 NDND 430642ETO15 10:54 BA

4-Methyl-2-Pentanone (MIBK) 400.0 03/30/18300 820 NDND 430642ETO15 10:54 BA

cis-1,3-Dichloropropene 400.0 03/30/18170 910 NDND 430642ETO15 10:54 BA

Tetrachloroethylene 400.0 03/30/18580 1400 14,011.8095000 430642ETO15 10:54 BA

1,1,2-Trichloroethane 400.0 03/30/18230 1100 NDND 430642ETO15 10:54 BA

Dibromochloromethane 400.0 03/30/18450 1700 NDND 430642ETO15 10:54 BA

1,2-Dibromoethane (EDB) 400.0 03/30/18290 1500 NDND 430642ETO15 10:54 BA

2-Hexanone 400.0 03/30/18260 820 NDND 430642ETO15 10:54 BA

Ethyl Benzene 400.0 03/30/18250 870 NDND 430642ETO15 10:54 BA

Chlorobenzene 400.0 03/30/18240 920 NDND 430642ETO15 10:54 BA

1,1,1,2-Tetrachloroethane 400.0 03/30/18340 1400 NDND 430642ETO15 10:54 BA

m,p-Xylene 400.0 03/30/18390 870 NDND 430642ETO15 10:54 BA

o-Xylene 400.0 03/30/18120 870 NDND 430642ETO15 10:54 BA

Styrene 400.0 03/30/18190 850 NDND 430642ETO15 10:54 BA

Bromoform 400.0 03/30/18520 2100 NDND 430642ETO15 10:54 BA

1,1,2,2-Tetrachloroethane 400.0 03/30/18330 1400 NDND 430642ETO15 10:54 BA

4-Ethyl Toluene 400.0 03/30/18220 980 NDND 430642ETO15 10:54 BA

1,3,5-Trimethylbenzene 400.0 03/30/18120 980 NDND 430642ETO15 10:54 BA

1,2,4-Trimethylbenzene 400.0 03/30/18240 980 NDND 430642ETO15 10:54 BA

1,4-Dichlorobenzene 400.0 03/30/18300 1200 NDND 430642ETO15 10:54 BA

1,3-Dichlorobenzene 400.0 03/30/18530 1200 NDND 430642ETO15 10:54 BA

1,2-Dichlorobenzene 400.0 03/30/18430 1200 NDND 430642ETO15 10:54 BA

Hexachlorobutadiene 400.0 03/30/18740 2100 NDND 430642ETO15 10:54 BA

1,2,4-Trichlorobenzene 400.0 03/30/18860 1500 NDND 430642ETO15 10:54 BA

Naphthalene 400.0 03/30/18510 1000 NDND 430642ETO15 10:54 BA

(S) 4-Bromofluorobenzene 400.0 03/30/1850 150 75 % 430642ETO15 10:54 BA

Page 15 of 36Total Page Count: 36

Page 36: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 12.7

Certified Clean WO # :

Collection Volume (L):

5431Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:55

14121.001.000

282 S. Montgomery

SG 11

AirSample Matrix:

Lab Sample ID: 1803294-005A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 50.00 03/29/1878 120 NDND 430642ETO15 21:13 BA

1,1-Difluoroethane 50.00 03/29/1817 680 NDND 430642ETO15 21:13 BA

1,2-Dichlorotetrafluoroethane 50.00 03/29/181400 2800 NDND 430642ETO15 21:13 BA

Chloromethane 50.00 03/29/18100 210 NDND 430642ETO15 21:13 BA

Vinyl Chloride 50.00 03/29/1811 64 NDND 430642ETO15 21:13 BA

1,3-Butadiene 50.00 03/29/1817 55 NDND 430642ETO15 21:13 BA

Bromomethane 50.00 03/29/1833 97 NDND 430642ETO15 21:13 BA

Chloroethane 50.00 03/29/1841 66 NDND 430642ETO15 21:13 BA

Trichlorofluoromethane 50.00 03/29/1828 140 NDND 430642ETO15 21:13 BA

1,1-Dichloroethene 50.00 03/29/1841 99 NDND 430642ETO15 21:13 BA

Freon 113 50.00 03/29/1851 190 NDND 430642ETO15 21:13 BA

Carbon Disulfide 50.00 03/29/1819 78 NDND 430642ETO15 21:13 BA

2-Propanol (Isopropyl Alcohol) 50.00 03/29/1864 620 NDND 430642ETO15 21:13 BA

Methylene Chloride 50.00 03/29/1835 520 NDND 430642ETO15 21:13 BA

Acetone 50.00 03/29/1820 600 NDND 430642ETO15 21:13 BA

trans-1,2-Dichloroethene 50.00 03/29/1824 99 NDND 430642ETO15 21:13 BA

Hexane 50.00 03/29/1823 88 568.182000 430642ETO15 21:13 BA

MTBE 50.00 03/29/1822 90 NDND 430642ETO15 21:13 BA

tert-Butanol 50.00 03/29/1831 76 NDND 430642ETO15 21:13 BA

Diisopropyl ether (DIPE) 50.00 03/29/1837 100 NDND 430642ETO15 21:13 BA

1,1-Dichloroethane 50.00 03/29/1827 100 NDND 430642ETO15 21:13 BA

ETBE 50.00 03/29/1816 100 NDND 430642ETO15 21:13 BA

cis-1,2-Dichloroethene 50.00 03/29/1842 99 NDND 430642ETO15 21:13 BA

Chloroform 50.00 03/29/1848 120 NDND 430642ETO15 21:13 BA

Vinyl Acetate 50.00 03/29/1838 88 NDND 430642ETO15 21:13 BA

Carbon Tetrachloride 50.00 03/29/1855 160 NDND 430642ETO15 21:13 BA

1,1,1-Trichloroethane 50.00 03/29/1840 140 NDND 430642ETO15 21:13 BA

2-Butanone (MEK) 50.00 03/29/1819 74 NDND 430642ETO15 21:13 BA

Ethyl Acetate 50.00 03/29/1824 90 NDND 430642ETO15 21:13 BA

Tetrahydrofuran 50.00 03/29/1822 74 NDND 430642ETO15 21:13 BA

Benzene 50.00 03/29/1822 80 NDND 430642ETO15 21:13 BA

TAME 50.00 03/29/1834 100 NDND 430642ETO15 21:13 BA

1,2-Dichloroethane (EDC) 50.00 03/29/1821 100 NDND 430642ETO15 21:13 BA

Page 16 of 36Total Page Count: 36

Page 37: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 12.7

Certified Clean WO # :

Collection Volume (L):

5431Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:55

14121.001.000

282 S. Montgomery

SG 11

AirSample Matrix:

Lab Sample ID: 1803294-005A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 50.00 03/29/1840 130 NDND 430642ETO15 21:13 BA

1,2-Dichloropropane 50.00 03/29/1838 120 NDND 430642ETO15 21:13 BA

Bromodichloromethane 50.00 03/29/1837 170 NDND 430642ETO15 21:13 BA

1,4-Dioxane 50.00 03/29/1890 180 NDND 430642ETO15 21:13 BA

trans-1,3-Dichloropropene 50.00 03/29/1853 110 NDND 430642ETO15 21:13 BA

Toluene 50.00 03/29/1838 94 NDND 430642ETO15 21:13 BA

4-Methyl-2-Pentanone (MIBK) 50.00 03/29/1837 100 268.291100 430642ETO15 21:13 BA

cis-1,3-Dichloropropene 50.00 03/29/1821 110 NDND 430642ETO15 21:13 BA

Tetrachloroethylene 50.00 03/29/1873 170 2,802.3619000 430642ETO15 21:13 BA

1,1,2-Trichloroethane 50.00 03/29/1829 140 NDND 430642ETO15 21:13 BA

Dibromochloromethane 50.00 03/29/1856 210 NDND 430642ETO15 21:13 BA

1,2-Dibromoethane (EDB) 50.00 03/29/1837 190 NDND 430642ETO15 21:13 BA

2-Hexanone 50.00 03/29/1833 100 NDND 430642ETO15 21:13 BA

Ethyl Benzene 50.00 03/29/1831 110 NDND 430642ETO15 21:13 BA

Chlorobenzene 50.00 03/29/1830 120 NDND 430642ETO15 21:13 BA

1,1,1,2-Tetrachloroethane 50.00 03/29/1842 170 NDND 430642ETO15 21:13 BA

m,p-Xylene 50.00 03/29/1849 110 32.26140 430642ETO15 21:13 BA

o-Xylene 50.00 03/29/1815 110 NDND 430642ETO15 21:13 BA

Styrene 50.00 03/29/1823 110 NDND 430642ETO15 21:13 BA

Bromoform 50.00 03/29/1865 260 NDND 430642ETO15 21:13 BA

1,1,2,2-Tetrachloroethane 50.00 03/29/1841 170 NDND 430642ETO15 21:13 BA

4-Ethyl Toluene 50.00 03/29/1827 120 NDND 430642ETO15 21:13 BA

1,3,5-Trimethylbenzene 50.00 03/29/1815 120 NDND 430642ETO15 21:13 BA

1,2,4-Trimethylbenzene 50.00 03/29/1830 120 NDND 430642ETO15 21:13 BA

1,4-Dichlorobenzene 50.00 03/29/1837 150 NDND 430642ETO15 21:13 BA

1,3-Dichlorobenzene 50.00 03/29/1867 150 NDND 430642ETO15 21:13 BA

1,2-Dichlorobenzene 50.00 03/29/1853 150 NDND 430642ETO15 21:13 BA

Hexachlorobutadiene 50.00 03/29/1893 270 NDND 430642ETO15 21:13 BA

1,2,4-Trichlorobenzene 50.00 03/29/18110 190 NDND 430642ETO15 21:13 BA

Naphthalene 50.00 03/29/1864 130 NDND 430642ETO15 21:13 BA

(S) 4-Bromofluorobenzene 50.00 03/29/1850 150 78 % 430642ETO15 21:13 BA

Page 17 of 36Total Page Count: 36

Page 38: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.3

Certified Clean WO # :

Collection Volume (L):

15542Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

IA 1

AirSample Matrix:

Lab Sample ID: 1803294-006A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/28/180.0178 0.0495 0.321.59 430624TO15SIM 23:20 BA

Vinyl Chloride 1.00 03/28/180.00366 0.00768 NDND 430624TO15SIM 23:20 BA

1,3-Butadiene 1.00 03/28/180.0220 0.0442 0.220.477 430624TO15SIM 23:20 BA

Bromomethane 1.00 03/28/180.00815 0.0194 0.020.0931 430624TO15SIM 23:20 BA

Chloroethane 1.00 03/28/180.00209 0.0132 0.090.227 430624TO15SIM 23:20 BA

Trichlorofluoromethane 1.00 03/28/180.0122 0.0281 0.251.42 430624TO15SIM 23:20 BA

1,1-Dichloroethene 1.00 03/28/180.00671 0.0199 0.020.0873 430624TO15SIM 23:20 BA

Methylene Chloride 1.00 03/28/180.0145 0.0347 0.260.892 430624TO15SIM 23:20 BA

Freon 113 1.00 03/28/180.0129 0.0383 0.110.827 430624TO15SIM 23:20 BA

trans-1,2-Dichloroethene 1.00 03/28/180.00372 0.0198 0.020.0594 430624TO15SIM 23:20 BA

MTBE 1.00 03/28/180.00621 0.0181 0.020.0758 430624TO15SIM 23:20 BA

1,1-Dichloroethane 1.00 03/28/180.00498 0.0203 0.020.0608 430624TO15SIM 23:20 BA

Vinyl Acetate 1.00 03/28/180.00503 0.0176 NDND 430624TO15SIM 23:20 BA

Diisopropyl ether (DIPE) 1.00 03/28/180.00439 0.0209 NDND 430624TO15SIM 23:20 BA

cis-1,2-Dichloroethene 1.00 03/28/180.00404 0.0198 0.020.0792 430624TO15SIM 23:20 BA

Ethyl Acetate 1.00 03/28/180.00331 0.0180 0.481.74 430624TO15SIM 23:20 BA

Chloroform 1.00 03/28/180.00810 0.0244 0.050.264 430624TO15SIM 23:20 BA

ETBE 1.00 03/28/180.00477 0.0209 0.020.0878 430624TO15SIM 23:20 BA

1,2-Dichloroethane (EDC) 1.00 03/28/180.00498 0.0203 0.020.0608 430624TO15SIM 23:20 BA

1,1,1-Trichloroethane 1.00 03/28/180.00819 0.0273 0.211.17 430624TO15SIM 23:20 BA

Carbon Tetrachloride 1.00 03/28/180.00849 0.0315 0.070.453 430624TO15SIM 23:20 BA

Benzene 1.00 03/28/180.0335 0.0638 0.300.957 430624TO15SIM 23:20 BA

TAME 1.00 03/28/180.00247 0.0209 NDND 430624TO15SIM 23:20 BA

1,2-Dichloropropane 1.00 03/28/180.00471 0.0231 NDND 430624TO15SIM 23:20 BA

Trichloroethylene 1.00 03/28/180.0112 0.0269 0.040.204 430624TO15SIM 23:20 BA

Bromodichloromethane 1.00 03/28/180.00556 0.0335 0.010.0737 430624TO15SIM 23:20 BA

1,4-Dioxane 1.00 03/28/180.0107 0.0180 0.040.130 430624TO15SIM 23:20 BA

cis-1,3-Dichloropropene 1.00 03/28/180.00359 0.0227 NDND 430624TO15SIM 23:20 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/28/180.00644 0.0205 NDND 430624TO15SIM 23:20 BA

trans-1,3-Dichloropropene 1.00 03/28/180.00400 0.0227 NDND 430624TO15SIM 23:20 BA

1,1,2-Trichloroethane 1.00 03/28/180.00322 0.0273 0.221.21 430624TO15SIM 23:20 BA

2-Hexanone 1.00 03/28/180.00890 0.0205 NDND 430624TO15SIM 23:20 BA

Dibromochloromethane 1.00 03/28/180.0214 0.0426 NDND 430624TO15SIM 23:20 BA

Page 18 of 36Total Page Count: 36

Page 39: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.3

Certified Clean WO # :

Collection Volume (L):

15542Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

IA 1

AirSample Matrix:

Lab Sample ID: 1803294-006A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

1,2-Dibromoethane (EDB) 1.00 03/28/180.00415 0.0384 0.010.0614 430624TO15SIM 23:20 BA

1,1,1,2-Tetrachloroethane 1.00 03/28/180.00893 0.0344 NDND 430624TO15SIM 23:20 BA

Chlorobenzene 1.00 03/28/180.00230 0.00460 0.000.0138 430624TO15SIM 23:20 BA

Ethyl Benzene 1.00 03/28/180.00234 0.0217 0.421.83 430624TO15SIM 23:20 BA

Bromoform 1.00 03/28/180.0341 0.103 NDND 430624TO15SIM 23:20 BA

Styrene 1.00 03/28/180.00311 0.0213 0.140.596 430624TO15SIM 23:20 BA

1,1,2,2-tetrachloroethane 1.00 03/28/180.00234 0.0687 NDND 430624TO15SIM 23:20 BA

o-Xylene 1.00 03/28/180.00221 0.0217 0.431.88 430624TO15SIM 23:20 BA

4-Ethyl toluene 1.00 03/28/180.00344 0.0246 0.110.526 430624TO15SIM 23:20 BA

1,3,5-Trimethylbenzene 1.00 03/28/180.00354 0.0246 0.100.497 430624TO15SIM 23:20 BA

1,2,4-Trimethylbenzene 1.00 03/28/180.00335 0.0246 0.341.66 430624TO15SIM 23:20 BA

1,3-Dichlorobenzene 1.00 03/28/180.00565 0.0301 NDND 430624TO15SIM 23:20 BA

1,4-Dichlorobenzene 1.00 03/28/180.00517 0.0301 0.020.120 430624TO15SIM 23:20 BA

1,2-Dichlorobenzene 1.00 03/28/180.00565 0.0301 NDND 430624TO15SIM 23:20 BA

1,2,4-Trichlorobenzene 1.00 03/28/180.0665 0.0371 NDND 430624TO15SIM 23:20 BA

Naphthalene 1.00 03/28/180.00472 0.0262 0.070.388 430624TO15SIM 23:20 BA

Hexachlorobutadiene 1.00 03/28/180.106 0.213 NDND 430624TO15SIM 23:20 BA

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Chloromethane 10.00 03/29/180.0865 0.207 4.779.87 430624TO15SIM 13:02 BA

2-Propanol (Isopropyl Alcohol) 10.00 03/29/180.155 1.23 3.518.63 430624TO15SIM 13:02 BA

tert-Butanol 10.00 03/29/180.115 0.303 1.384.18 430624TO15SIM 13:02 BA

Carbon disulfide 10.00 03/29/180.0283 0.156 0.882.74 430624TO15SIM 13:02 BA

Hexane 10.00 03/29/180.0451 0.176 2.408.45 430624TO15SIM 13:02 BA

2-Butanone (MEK) 10.00 03/29/180.0271 0.148 0.862.54 430624TO15SIM 13:02 BA

Tetrahydrofuran 10.00 03/29/180.286 0.590 0.481.42 430624TO15SIM 13:02 BA

Toluene 10.00 03/29/180.0415 0.189 1.013.81 430624TO15SIM 13:02 BA

Tetrachloroethylene 10.00 03/29/180.257 0.678 3.1621.4 430624TO15SIM 13:02 BA

Page 19 of 36Total Page Count: 36

Page 40: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.3

Certified Clean WO # :

Collection Volume (L):

15542Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

IA 1

AirSample Matrix:

Lab Sample ID: 1803294-006A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

m,p-Xylene 10.00 03/29/180.0265 0.434 1.124.86 430624TO15SIM 13:02 BA

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Acetone 20.00 03/29/180.514 0.952 12.2329.1 430624TO15SIM 14:41 BA

Page 20 of 36Total Page Count: 36

Page 41: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.2

Certified Clean WO # :

Collection Volume (L):

15576Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

IA 2

AirSample Matrix:

Lab Sample ID: 1803294-007A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/28/180.0178 0.0495 0.321.57 430624TO15SIM 23:56 BA

Vinyl Chloride 1.00 03/28/180.00366 0.00768 NDND 430624TO15SIM 23:56 BA

1,3-Butadiene 1.00 03/28/180.0220 0.0442 0.240.533 430624TO15SIM 23:56 BA

Bromomethane 1.00 03/28/180.00815 0.0194 0.020.0698 430624TO15SIM 23:56 BA

Chloroethane 1.00 03/28/180.00209 0.0132 0.010.0132 430624TO15SIM 23:56 BA

Trichlorofluoromethane 1.00 03/28/180.0122 0.0281 0.271.52 430624TO15SIM 23:56 BA

1,1-Dichloroethene 1.00 03/28/180.00671 0.0199 0.020.0913 430624TO15SIM 23:56 BA

Methylene Chloride 1.00 03/28/180.0145 0.0347 0.190.659 430624TO15SIM 23:56 BA

Freon 113 1.00 03/28/180.0129 0.0383 0.100.728 430624TO15SIM 23:56 BA

Carbon disulfide 1.00 03/28/180.00283 0.0156 0.020.0560 430624TO15SIM 23:56 BA

trans-1,2-Dichloroethene 1.00 03/28/180.00372 0.0198 0.020.0594 430624TO15SIM 23:56 BA

MTBE 1.00 03/28/180.00621 0.0181 NDND 430624TO15SIM 23:56 BA

1,1-Dichloroethane 1.00 03/28/180.00498 0.0203 0.010.0527 430624TO15SIM 23:56 BA

Vinyl Acetate 1.00 03/28/180.00503 0.0176 NDND 430624TO15SIM 23:56 BA

Diisopropyl ether (DIPE) 1.00 03/28/180.00439 0.0209 NDND 430624TO15SIM 23:56 BA

cis-1,2-Dichloroethene 1.00 03/28/180.00404 0.0198 0.030.135 430624TO15SIM 23:56 BA

Ethyl Acetate 1.00 03/28/180.00331 0.0180 0.471.68 430624TO15SIM 23:56 BA

Chloroform 1.00 03/28/180.00810 0.0244 0.050.249 430624TO15SIM 23:56 BA

ETBE 1.00 03/28/180.00477 0.0209 0.030.142 430624TO15SIM 23:56 BA

1,2-Dichloroethane (EDC) 1.00 03/28/180.00498 0.0203 0.020.0608 430624TO15SIM 23:56 BA

1,1,1-Trichloroethane 1.00 03/28/180.00819 0.0273 NDND 430624TO15SIM 23:56 BA

Carbon Tetrachloride 1.00 03/28/180.00849 0.0315 0.080.491 430624TO15SIM 23:56 BA

Benzene 1.00 03/28/180.0335 0.0638 0.341.10 430624TO15SIM 23:56 BA

TAME 1.00 03/28/180.00247 0.0209 NDND 430624TO15SIM 23:56 BA

1,2-Dichloropropane 1.00 03/28/180.00471 0.0231 0.010.0231 430624TO15SIM 23:56 BA

Trichloroethylene 1.00 03/28/180.0112 0.0269 0.010.0537 430624TO15SIM 23:56 BA

Bromodichloromethane 1.00 03/28/180.00556 0.0335 0.010.0670 430624TO15SIM 23:56 BA

1,4-Dioxane 1.00 03/28/180.0107 0.0180 0.050.173 430624TO15SIM 23:56 BA

cis-1,3-Dichloropropene 1.00 03/28/180.00359 0.0227 NDND 430624TO15SIM 23:56 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/28/180.00644 0.0205 NDND 430624TO15SIM 23:56 BA

trans-1,3-Dichloropropene 1.00 03/28/180.00400 0.0227 NDND 430624TO15SIM 23:56 BA

1,1,2-Trichloroethane 1.00 03/28/180.00322 0.0273 0.100.530 430624TO15SIM 23:56 BA

Dibromochloromethane 1.00 03/28/180.0214 0.0426 NDND 430624TO15SIM 23:56 BA

Page 21 of 36Total Page Count: 36

Page 42: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.2

Certified Clean WO # :

Collection Volume (L):

15576Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

IA 2

AirSample Matrix:

Lab Sample ID: 1803294-007A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

1,2-Dibromoethane (EDB) 1.00 03/28/180.00415 0.0384 NDND 430624TO15SIM 23:56 BA

1,1,1,2-Tetrachloroethane 1.00 03/28/180.00893 0.0344 NDND 430624TO15SIM 23:56 BA

Chlorobenzene 1.00 03/28/180.00230 0.00460 0.000.0138 430624TO15SIM 23:56 BA

Ethyl Benzene 1.00 03/28/180.00234 0.0217 0.291.24 430624TO15SIM 23:56 BA

m,p-Xylene 1.00 03/28/180.00265 0.0434 0.903.91 430624TO15SIM 23:56 BA

Bromoform 1.00 03/28/180.0341 0.103 NDND 430624TO15SIM 23:56 BA

Styrene 1.00 03/28/180.00311 0.0213 0.170.724 430624TO15SIM 23:56 BA

1,1,2,2-tetrachloroethane 1.00 03/28/180.00234 0.0687 NDND 430624TO15SIM 23:56 BA

o-Xylene 1.00 03/28/180.00221 0.0217 0.261.12 430624TO15SIM 23:56 BA

4-Ethyl toluene 1.00 03/28/180.00344 0.0246 0.251.21 430624TO15SIM 23:56 BA

1,3,5-Trimethylbenzene 1.00 03/28/180.00354 0.0246 0.060.315 430624TO15SIM 23:56 BA

1,2,4-Trimethylbenzene 1.00 03/28/180.00335 0.0246 0.211.03 430624TO15SIM 23:56 BA

1,3-Dichlorobenzene 1.00 03/28/180.00565 0.0301 NDND 430624TO15SIM 23:56 BA

1,4-Dichlorobenzene 1.00 03/28/180.00517 0.0301 0.030.174 430624TO15SIM 23:56 BA

1,2-Dichlorobenzene 1.00 03/28/180.00565 0.0301 NDND 430624TO15SIM 23:56 BA

1,2,4-Trichlorobenzene 1.00 03/28/180.0665 0.0371 NDND 430624TO15SIM 23:56 BA

Naphthalene 1.00 03/28/180.00472 0.0262 0.080.430 430624TO15SIM 23:56 BA

Hexachlorobutadiene 1.00 03/28/180.106 0.213 NDND 430624TO15SIM 23:56 BA

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Chloromethane 10.00 03/29/180.0865 0.207 4.819.96 430624TO15SIM 13:26 BA

2-Propanol (Isopropyl Alcohol) 10.00 03/29/180.155 1.23 2.917.16 430624TO15SIM 13:26 BA

tert-Butanol 10.00 03/29/180.115 0.303 0.240.727 430624TO15SIM 13:26 BA

Hexane 10.00 03/29/180.0451 0.176 1.906.69 430624TO15SIM 13:26 BA

2-Butanone (MEK) 10.00 03/29/180.0271 0.148 0.782.30 430624TO15SIM 13:26 BA

Tetrahydrofuran 10.00 03/29/180.286 0.590 0.541.59 430624TO15SIM 13:26 BA

Toluene 10.00 03/29/180.0415 0.189 0.943.54 430624TO15SIM 13:26 BA

2-Hexanone 10.00 03/29/180.0890 0.205 0.341.39 430624TO15SIM 13:26 BA

Page 22 of 36Total Page Count: 36

Page 43: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.2

Certified Clean WO # :

Collection Volume (L):

15576Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 16:35

14121.001.000

282 S. Montgomery

IA 2

AirSample Matrix:

Lab Sample ID: 1803294-007A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Tetrachloroethylene 10.00 03/29/180.257 0.678 3.5824.3 430624TO15SIM 13:26 BA

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Acetone 20.00 03/29/180.514 0.952 10.3424.6 430624TO15SIM 15:06 BA

Page 23 of 36Total Page Count: 36

Page 44: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.0

Certified Clean WO # :

Collection Volume (L):

15546Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 17:03

14121.001.000

282 S. Montgomery

IA 3

AirSample Matrix:

Lab Sample ID: 1803294-008A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/29/180.0178 0.0495 0.321.58 430624TO15SIM 0:32 BA

Vinyl Chloride 1.00 03/29/180.00366 0.00768 0.000.00768 430624TO15SIM 0:32 BA

1,3-Butadiene 1.00 03/29/180.0220 0.0442 0.160.343 430624TO15SIM 0:32 BA

Bromomethane 1.00 03/29/180.00815 0.0194 0.020.0931 430624TO15SIM 0:32 BA

Chloroethane 1.00 03/29/180.00209 0.0132 0.010.0185 430624TO15SIM 0:32 BA

Trichlorofluoromethane 1.00 03/29/180.0122 0.0281 0.281.60 430624TO15SIM 0:32 BA

1,1-Dichloroethene 1.00 03/29/180.00671 0.0199 0.020.0873 430624TO15SIM 0:32 BA

Methylene Chloride 1.00 03/29/180.0145 0.0347 0.190.645 430624TO15SIM 0:32 BA

Freon 113 1.00 03/29/180.0129 0.0383 0.100.758 430624TO15SIM 0:32 BA

Carbon disulfide 1.00 03/29/180.00283 0.0156 0.020.0591 430624TO15SIM 0:32 BA

trans-1,2-Dichloroethene 1.00 03/29/180.00372 0.0198 0.020.0594 430624TO15SIM 0:32 BA

MTBE 1.00 03/29/180.00621 0.0181 NDND 430624TO15SIM 0:32 BA

1,1-Dichloroethane 1.00 03/29/180.00498 0.0203 0.010.0203 430624TO15SIM 0:32 BA

Vinyl Acetate 1.00 03/29/180.00503 0.0176 NDND 430624TO15SIM 0:32 BA

Diisopropyl ether (DIPE) 1.00 03/29/180.00439 0.0209 NDND 430624TO15SIM 0:32 BA

cis-1,2-Dichloroethene 1.00 03/29/180.00404 0.0198 0.010.0317 430624TO15SIM 0:32 BA

Ethyl Acetate 1.00 03/29/180.00331 0.0180 0.371.33 430624TO15SIM 0:32 BA

Chloroform 1.00 03/29/180.00810 0.0244 0.050.224 430624TO15SIM 0:32 BA

ETBE 1.00 03/29/180.00477 0.0209 0.060.251 430624TO15SIM 0:32 BA

1,2-Dichloroethane (EDC) 1.00 03/29/180.00498 0.0203 0.020.0608 430624TO15SIM 0:32 BA

1,1,1-Trichloroethane 1.00 03/29/180.00819 0.0273 0.010.0273 430624TO15SIM 0:32 BA

Carbon Tetrachloride 1.00 03/29/180.00849 0.0315 0.090.554 430624TO15SIM 0:32 BA

Benzene 1.00 03/29/180.0335 0.0638 0.411.31 430624TO15SIM 0:32 BA

TAME 1.00 03/29/180.00247 0.0209 NDND 430624TO15SIM 0:32 BA

1,2-Dichloropropane 1.00 03/29/180.00471 0.0231 NDND 430624TO15SIM 0:32 BA

Trichloroethylene 1.00 03/29/180.0112 0.0269 NDND 430624TO15SIM 0:32 BA

Bromodichloromethane 1.00 03/29/180.00556 0.0335 0.010.0402 430624TO15SIM 0:32 BA

1,4-Dioxane 1.00 03/29/180.0107 0.0180 0.030.122 430624TO15SIM 0:32 BA

cis-1,3-Dichloropropene 1.00 03/29/180.00359 0.0227 NDND 430624TO15SIM 0:32 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/29/180.00644 0.0205 NDND 430624TO15SIM 0:32 BA

trans-1,3-Dichloropropene 1.00 03/29/180.00400 0.0227 NDND 430624TO15SIM 0:32 BA

1,1,2-Trichloroethane 1.00 03/29/180.00322 0.0273 0.030.169 430624TO15SIM 0:32 BA

Dibromochloromethane 1.00 03/29/180.0214 0.0426 NDND 430624TO15SIM 0:32 BA

Page 24 of 36Total Page Count: 36

Page 45: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.0

Certified Clean WO # :

Collection Volume (L):

15546Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 17:03

14121.001.000

282 S. Montgomery

IA 3

AirSample Matrix:

Lab Sample ID: 1803294-008A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

1,2-Dibromoethane (EDB) 1.00 03/29/180.00415 0.0384 NDND 430624TO15SIM 0:32 BA

1,1,1,2-Tetrachloroethane 1.00 03/29/180.00893 0.0344 NDND 430624TO15SIM 0:32 BA

Chlorobenzene 1.00 03/29/180.00230 0.00460 0.000.00920 430624TO15SIM 0:32 BA

Ethyl Benzene 1.00 03/29/180.00234 0.0217 0.200.881 430624TO15SIM 0:32 BA

m,p-Xylene 1.00 03/29/180.00265 0.0434 0.652.80 430624TO15SIM 0:32 BA

Bromoform 1.00 03/29/180.0341 0.103 NDND 430624TO15SIM 0:32 BA

Styrene 1.00 03/29/180.00311 0.0213 0.100.409 430624TO15SIM 0:32 BA

1,1,2,2-tetrachloroethane 1.00 03/29/180.00234 0.0687 NDND 430624TO15SIM 0:32 BA

o-Xylene 1.00 03/29/180.00221 0.0217 0.200.872 430624TO15SIM 0:32 BA

4-Ethyl toluene 1.00 03/29/180.00344 0.0246 0.190.915 430624TO15SIM 0:32 BA

1,3,5-Trimethylbenzene 1.00 03/29/180.00354 0.0246 0.060.290 430624TO15SIM 0:32 BA

1,2,4-Trimethylbenzene 1.00 03/29/180.00335 0.0246 0.170.812 430624TO15SIM 0:32 BA

1,3-Dichlorobenzene 1.00 03/29/180.00565 0.0301 NDND 430624TO15SIM 0:32 BA

1,4-Dichlorobenzene 1.00 03/29/180.00517 0.0301 0.020.132 430624TO15SIM 0:32 BA

1,2-Dichlorobenzene 1.00 03/29/180.00565 0.0301 NDND 430624TO15SIM 0:32 BA

1,2,4-Trichlorobenzene 1.00 03/29/180.0665 0.0371 NDND 430624TO15SIM 0:32 BA

Naphthalene 1.00 03/29/180.00472 0.0262 0.080.445 430624TO15SIM 0:32 BA

Hexachlorobutadiene 1.00 03/29/180.106 0.213 NDND 430624TO15SIM 0:32 BA

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Chloromethane 10.00 03/29/180.0865 0.207 2.144.43 430624TO15SIM 13:52 BA

tert-Butanol 10.00 03/29/180.115 0.303 0.361.09 430624TO15SIM 13:52 BA

Hexane 10.00 03/29/180.0451 0.176 0.642.25 430624TO15SIM 13:52 BA

2-Butanone (MEK) 10.00 03/29/180.0271 0.148 0.581.71 430624TO15SIM 13:52 BA

Tetrahydrofuran 10.00 03/29/180.286 0.590 0.411.21 430624TO15SIM 13:52 BA

Toluene 10.00 03/29/180.0415 0.189 0.782.94 430624TO15SIM 13:52 BA

2-Hexanone 10.00 03/29/180.0890 0.205 0.311.27 430624TO15SIM 13:52 BA

Tetrachloroethylene 10.00 03/29/180.257 0.678 1.6110.9 430624TO15SIM 13:52 BA

Page 25 of 36Total Page Count: 36

Page 46: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.0

Certified Clean WO # :

Collection Volume (L):

15546Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 17:03

14121.001.000

282 S. Montgomery

IA 3

AirSample Matrix:

Lab Sample ID: 1803294-008A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

2-Propanol (Isopropyl Alcohol) 20.00 03/29/180.311 2.46 7.1517.6 430624TO15SIM 15:30 BA

Acetone 20.00 03/29/180.514 0.952 8.6620.6 430624TO15SIM 15:30 BA

Page 26 of 36Total Page Count: 36

Page 47: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.6

Certified Clean WO # :

Collection Volume (L):

23162Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 17:05

14121.001.000

282 S. Montgomery

IA 4

AirSample Matrix:

Lab Sample ID: 1803294-009A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/29/180.0178 0.0495 0.351.74 430624TO15SIM 1:09 BA

Vinyl Chloride 1.00 03/29/180.00366 0.00768 0.000.0102 430624TO15SIM 1:09 BA

1,3-Butadiene 1.00 03/29/180.0220 0.0442 0.190.427 430624TO15SIM 1:09 BA

Bromomethane 1.00 03/29/180.00815 0.0194 0.040.151 430624TO15SIM 1:09 BA

Chloroethane 1.00 03/29/180.00209 0.0132 NDND 430624TO15SIM 1:09 BA

Trichlorofluoromethane 1.00 03/29/180.0122 0.0281 0.281.59 430624TO15SIM 1:09 BA

1,1-Dichloroethene 1.00 03/29/180.00671 0.0199 0.020.0873 430624TO15SIM 1:09 BA

tert-Butanol 1.00 03/29/180.0115 0.0303 0.501.51 430624TO15SIM 1:09 BA

Methylene Chloride 1.00 03/29/180.0145 0.0347 0.190.666 430624TO15SIM 1:09 BA

Freon 113 1.00 03/29/180.0129 0.0383 0.100.774 430624TO15SIM 1:09 BA

Carbon disulfide 1.00 03/29/180.00283 0.0156 0.010.0280 430624TO15SIM 1:09 BA

trans-1,2-Dichloroethene 1.00 03/29/180.00372 0.0198 0.020.0634 430624TO15SIM 1:09 BA

MTBE 1.00 03/29/180.00621 0.0181 NDND 430624TO15SIM 1:09 BA

1,1-Dichloroethane 1.00 03/29/180.00498 0.0203 NDND 430624TO15SIM 1:09 BA

Vinyl Acetate 1.00 03/29/180.00503 0.0176 NDND 430624TO15SIM 1:09 BA

Diisopropyl ether (DIPE) 1.00 03/29/180.00439 0.0209 NDND 430624TO15SIM 1:09 BA

cis-1,2-Dichloroethene 1.00 03/29/180.00404 0.0198 0.010.0198 430624TO15SIM 1:09 BA

Ethyl Acetate 1.00 03/29/180.00331 0.0180 0.391.41 430624TO15SIM 1:09 BA

Chloroform 1.00 03/29/180.00810 0.0244 0.050.220 430624TO15SIM 1:09 BA

ETBE 1.00 03/29/180.00477 0.0209 0.050.222 430624TO15SIM 1:09 BA

1,2-Dichloroethane (EDC) 1.00 03/29/180.00498 0.0203 0.020.0648 430624TO15SIM 1:09 BA

1,1,1-Trichloroethane 1.00 03/29/180.00819 0.0273 NDND 430624TO15SIM 1:09 BA

Carbon Tetrachloride 1.00 03/29/180.00849 0.0315 0.080.528 430624TO15SIM 1:09 BA

Benzene 1.00 03/29/180.0335 0.0638 0.391.23 430624TO15SIM 1:09 BA

TAME 1.00 03/29/180.00247 0.0209 NDND 430624TO15SIM 1:09 BA

1,2-Dichloropropane 1.00 03/29/180.00471 0.0231 0.010.0231 430624TO15SIM 1:09 BA

Trichloroethylene 1.00 03/29/180.0112 0.0269 0.010.0376 430624TO15SIM 1:09 BA

Bromodichloromethane 1.00 03/29/180.00556 0.0335 0.010.0335 430624TO15SIM 1:09 BA

1,4-Dioxane 1.00 03/29/180.0107 0.0180 0.060.227 430624TO15SIM 1:09 BA

cis-1,3-Dichloropropene 1.00 03/29/180.00359 0.0227 NDND 430624TO15SIM 1:09 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/29/180.00644 0.0205 NDND 430624TO15SIM 1:09 BA

trans-1,3-Dichloropropene 1.00 03/29/180.00400 0.0227 NDND 430624TO15SIM 1:09 BA

1,1,2-Trichloroethane 1.00 03/29/180.00322 0.0273 0.040.213 430624TO15SIM 1:09 BA

Page 27 of 36Total Page Count: 36

Page 48: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.6

Certified Clean WO # :

Collection Volume (L):

23162Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 17:05

14121.001.000

282 S. Montgomery

IA 4

AirSample Matrix:

Lab Sample ID: 1803294-009A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dibromochloromethane 1.00 03/29/180.0214 0.0426 NDND 430624TO15SIM 1:09 BA

1,2-Dibromoethane (EDB) 1.00 03/29/180.00415 0.0384 NDND 430624TO15SIM 1:09 BA

1,1,1,2-Tetrachloroethane 1.00 03/29/180.00893 0.0344 NDND 430624TO15SIM 1:09 BA

Chlorobenzene 1.00 03/29/180.00230 0.00460 0.000.0138 430624TO15SIM 1:09 BA

Ethyl Benzene 1.00 03/29/180.00234 0.0217 0.241.03 430624TO15SIM 1:09 BA

m,p-Xylene 1.00 03/29/180.00265 0.0434 0.763.28 430624TO15SIM 1:09 BA

Bromoform 1.00 03/29/180.0341 0.103 NDND 430624TO15SIM 1:09 BA

Styrene 1.00 03/29/180.00311 0.0213 0.090.371 430624TO15SIM 1:09 BA

1,1,2,2-tetrachloroethane 1.00 03/29/180.00234 0.0687 NDND 430624TO15SIM 1:09 BA

o-Xylene 1.00 03/29/180.00221 0.0217 0.231.00 430624TO15SIM 1:09 BA

4-Ethyl toluene 1.00 03/29/180.00344 0.0246 0.190.950 430624TO15SIM 1:09 BA

1,3,5-Trimethylbenzene 1.00 03/29/180.00354 0.0246 0.060.300 430624TO15SIM 1:09 BA

1,2,4-Trimethylbenzene 1.00 03/29/180.00335 0.0246 0.160.777 430624TO15SIM 1:09 BA

1,3-Dichlorobenzene 1.00 03/29/180.00565 0.0301 NDND 430624TO15SIM 1:09 BA

1,4-Dichlorobenzene 1.00 03/29/180.00517 0.0301 0.020.114 430624TO15SIM 1:09 BA

1,2-Dichlorobenzene 1.00 03/29/180.00565 0.0301 NDND 430624TO15SIM 1:09 BA

1,2,4-Trichlorobenzene 1.00 03/29/180.0665 0.0371 NDND 430624TO15SIM 1:09 BA

Naphthalene 1.00 03/29/180.00472 0.0262 0.060.304 430624TO15SIM 1:09 BA

Hexachlorobutadiene 1.00 03/29/180.106 0.213 NDND 430624TO15SIM 1:09 BA

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Chloromethane 10.00 03/29/180.0865 0.207 3.497.22 430624TO15SIM 14:16 BA

Hexane 10.00 03/29/180.0451 0.176 0.501.76 430624TO15SIM 14:16 BA

2-Butanone (MEK) 10.00 03/29/180.0271 0.148 0.571.68 430624TO15SIM 14:16 BA

Tetrahydrofuran 10.00 03/29/180.286 0.590 0.521.53 430624TO15SIM 14:16 BA

Toluene 10.00 03/29/180.0415 0.189 0.772.90 430624TO15SIM 14:16 BA

2-Hexanone 10.00 03/29/180.0890 0.205 0.291.19 430624TO15SIM 14:16 BA

Tetrachloroethylene 10.00 03/29/180.257 0.678 0.896.03 430624TO15SIM 14:16 BA

Page 28 of 36Total Page Count: 36

Page 49: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 14.6

Certified Clean WO # :

Collection Volume (L):

23162Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 17:05

14121.001.000

282 S. Montgomery

IA 4

AirSample Matrix:

Lab Sample ID: 1803294-009A

SDG:

Prep Batch ID: 1103845

Prep Batch Date/Time: 3/28/18 9:00:00PM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

2-Propanol (Isopropyl Alcohol) 20.00 03/29/180.311 2.46 4.5911.3 430624TO15SIM 15:55 BA

Acetone 20.00 03/29/180.514 0.952 8.8721.1 430624TO15SIM 15:55 BA

Page 29 of 36Total Page Count: 36

Page 50: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

ETO15Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ppbv

1103867TO15-P

Air 430642

1803294

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.32 0.50Dichlorodifluoromethane ND

0.13 5.01,1-Difluoroethane ND

4.0 8.01,2-Dichlorotetrafluoroethane ND

0.99 2.0Chloromethane ND

0.088 0.50Vinyl Chloride ND

0.15 0.501,3-Butadiene ND

0.17 0.50Bromomethane ND

0.31 0.50Chloroethane ND

0.099 0.50Trichlorofluoromethane ND

0.21 0.501,1-Dichloroethene ND

0.13 0.50Freon 113 ND

0.12 0.50Carbon Disulfide ND

0.52 5.02-Propanol (Isopropyl Alcohol) ND

0.20 3.0Methylene Chloride ND

0.17 5.0Acetone 0.31

0.12 0.50trans-1,2-Dichloroethene ND

0.13 0.50Hexane ND

0.12 0.50MTBE ND

0.20 0.50tert-Butanol ND

0.18 0.50Diisopropyl ether (DIPE) ND

0.13 0.501,1-Dichloroethane ND

0.078 0.50ETBE ND

0.21 0.50cis-1,2-Dichloroethene ND

0.20 0.50Chloroform ND

0.22 0.50Vinyl Acetate ND

0.18 0.50Carbon Tetrachloride ND

0.15 0.501,1,1-Trichloroethane ND

0.13 0.502-Butanone (MEK) ND

0.13 0.50Ethyl Acetate ND

0.15 0.50Tetrahydrofuran ND

0.14 0.50Benzene ND

0.16 0.50TAME ND

0.10 0.501,2-Dichloroethane (EDC) ND

0.15 0.50Trichloroethylene ND

0.17 0.501,2-Dichloropropane ND

0.11 0.50Bromodichloromethane ND

0.50 1.01,4-Dioxane ND

0.23 0.50trans-1,3-Dichloropropene ND

0.20 0.50Toluene ND

0.18 0.504-Methyl-2-Pentanone (MIBK) ND

0.093 0.50cis-1,3-Dichloropropene ND

0.22 0.50Tetrachloroethylene ND

Page 30 of 36Total Page Count: 36

Page 51: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

ETO15Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ppbv

1103867TO15-P

Air 430642

1803294

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.11 0.501,1,2-Trichloroethane ND

0.13 0.50Dibromochloromethane ND

0.096 0.501,2-Dibromoethane (EDB) ND

0.16 0.502-Hexanone ND

0.15 0.50Ethyl Benzene ND

0.13 0.50Chlorobenzene ND

0.12 0.501,1,1,2-Tetrachloroethane ND

0.23 0.50m,p-Xylene ND

0.070 0.50o-Xylene ND

0.11 0.50Styrene ND

0.13 0.50Bromoform ND

0.12 0.501,1,2,2-Tetrachloroethane ND

0.11 0.504-Ethyl Toluene ND

0.061 0.501,3,5-Trimethylbenzene ND

0.12 0.501,2,4-Trimethylbenzene ND

0.12 0.501,4-Dichlorobenzene ND

0.22 0.501,3-Dichlorobenzene ND

0.18 0.501,2-Dichlorobenzene ND

0.17 0.50Hexachlorobutadiene ND

0.29 0.501,2,4-Trichlorobenzene ND

0.24 0.50Naphthalene ND

(S) 4-Bromofluorobenzene 89

Page 31 of 36Total Page Count: 36

Page 52: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/28/18 Prep Batch:

Analytical

Batch:

TO-15SIM-P 1103845

3/28/2018ETO15 430624

ppbv

1803294

Air

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.0050 0.1000.011 2.96 3065 - 1351,1-Dichloroethene 103 100

0.020 0.1000.0021 0.985 3065 - 135Benzene 102 101

0.0050 0.1000.0011 1.03 3065 - 135Trichloroethylene 97.0 98.0

0.0050 0.1000.00050 13.2 3065 - 135Toluene 121 106

0.0050 0.1000.0017 9.73 3065 - 135Chlorobenzene 88.0 97.0

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:

TO15-P 1103867

3/29/2018ETO15 430642

ppbv

1803294

Air

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.50 8.000.21 5.03 3065 - 1351,1-Dichloroethene 117 111ND

0.50 8.000.14 2.03 3065 - 135Benzene 99.5 97.4ND

0.50 8.000.15 0.513 3065 - 135Trichloroethylene 97.7 97.3ND

0.50 8.000.20 1.05 3065 - 135Toluene 96.1 95.1ND

0.50 8.000.13 0.788 3065 - 135Chlorobenzene 95.5 94.8ND

20.0 50 - 150(S) 4-Bromofluorobenzene 83.9 87.7

Page 32 of 36Total Page Count: 36

Page 53: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Laboratory Qualifiers and Definitions

Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte

concentration is greater than zero

Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and

analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc)

Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document

laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample

(sample duplicate, LCSD, MSD)

Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample

processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can

be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factorsand/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates

Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, butwhich is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen methodof analysis

Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined

compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention timeand primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg(equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % (

equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface)

B - Indicates when the analyte is found in the associated method or preparation blank

D - Surrogate is not recoverable due to the necessary dilution of the sample

E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted)

Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded

J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative

NA - Not Analyzed

N/A - Not Applicable

ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the

spike concentration added

R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts

S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a

case narrative

X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Page 33 of 36Total Page Count: 36

Page 54: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Sample Receipt Checklist

Client Name: Engeo (San Ramon)

Project Name: 282 S. Montgomery

Work Order No.: 1803294

Date and Time Received: 3/28/2018 6:00:00PM

Received By: Helena Ueng

Physically Logged By: Helena Ueng

Carrier Name: Client Drop Off

Checklist Completed By: Helena Ueng

Summa canisters received at ambient temperature

Comments:

Chain of Custody (COC) Information

Shipping Container/Cooler In Good Condition?

Custody seals intact on shipping container/cooler?

Custody seals intact on sample bottles?

Chain of custody present?

Chain of custody signed when relinquished and received?

Chain of custody agrees with sample labels?

Samples in proper container/bottle?

Sufficient sample volume for indicated test?

All samples received within holding time?

Container/Temp Blank temperature in compliance?

Water-VOA vials have zero headspace?

Water-pH acceptable upon receipt?

Temperature:

Yes

Not Present

Not Present

Yes

Yes

Yes

Yes

Yes

Yes

No VOA vials submitted

N/A

Samples containers intact? Yes

°C

Sample Receipt Information

Sample Preservation and Hold Time (HT) Information

pH Checked by: N/A pH Adjusted by: N/A

Page 34 of 36Total Page Count: 36

Page 55: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Login Summary Report

Report Due Date:

3/28/2018

IIEngeo (San Ramon)TL5123

282 S. Montgomery

14121.001.000

4/2/2018

TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:

3 Day Std:3

6:00 pm

1803294Work Order # :

SubbedRequested

Tests

Test

On Hold

Sample

On Hold

Scheduled

Disposal

MatrixCollection

Date/Time

Client

Sample ID

WO Sample ID

SG 61803294-001A Air03/28/18 14:45

VOC_A_TO15

SG 71803294-002A Air03/28/18 16:20

VOC_A_TO15

SG 81803294-003A Air03/28/18 16:35

VOC_A_TO15

SG 101803294-004A Air03/28/18 13:50

VOC_A_TO15

SG 111803294-005A Air03/28/18 13:55

VOC_A_TO15

IA 11803294-006A Air03/28/18 16:35

VOC_A_TO15SIM

IA 21803294-007A Air03/28/18 16:35

VOC_A_TO15SIM

IA 31803294-008A Air03/28/18 17:03

VOC_A_TO15SIM

IA 41803294-009A Air03/28/18 17:05

VOC_A_TO15SIM

Page 35 of 36Total Page Count: 36

Page 56: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Page 36 of 36Total Page Count: 36

Page 57: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Engeo (San Ramon)

2010 Crow Canyon Place,#250

San Ramon, California 94583

Tel: (925) 866-9000

Fax: (925) 866-0199

RE: 282 S. Montgomery

Torrent Laboratory, Inc. received 19 sample(s) on March 28, 2018 for the analyses presented in the following Report.

Dear Divya Bhargava:

Work Order No.: 1803295

All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date

April 02, 2018

Patti L Sandrock

QA Officer

Page 1 of 62Total Page Count: 62

Page 58: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Date: 4/2/2018

Client: Engeo (San Ramon)

Project: 282 S. Montgomery

Work Order: 1803295

CASE NARRATIVE

No issues encountered with the receiving, preparation, analysis or reporting of the resultsassociated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or fieldblank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Analytical, Inc.

Page 2 of 62Total Page Count: 62

Page 59: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803295-001S6 @ 1'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg17.3101.81SW8260B

Tetrachloroethylene ug/Kg49.3101.71SW8260B

1803295-002S6 @ 5'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg32.4101.71SW8260B

1803295-003S6 @ 10'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg43.4101.71SW8260B

1803295-004S7 @ 1'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg25.7101.71SW8260B

1803295-005S7 @ 5'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg13.9101.71SW8260B

1803295-006S7 @ 10'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg40.6101.71SW8260B

1803295-007S8 @ 1'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg15.5101.81SW8260B

1803295-008S8 @ 5'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

All compounds were non-detectable for this sample.

1803295-009S8 @ 10'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg12.4101.81SW8260B

Tetrachloroethylene ug/Kg21.4101.71SW8260B

Page 3 of 62Total Page Count: 62

Page 60: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803295-010S10 @ 1'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg41801000170100SW8260B

1803295-011S10 @ 5'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg959508.35SW8260B

1803295-012S10 @ 10'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg1710508.35SW8260B

1803295-013S16 @ 1'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg422254.22.5SW8260B

1803295-014S16 @ 5'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg1710508.35SW8260B

1803295-015S16 @ 10'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg68101000170100SW8260B

1803295-016GW 6

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Trichloroethylene ug/L1.30.560.161.11SW8260B

Tetrachloroethylene ug/L450.560.261.11SW8260B

1803295-017GW 7

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Trichloroethylene ug/L25216.142SW8260B

Tetrachloroethylene ug/L13002110.42SW8260B

1803295-018GW 8

Parameters: PQLMDL UnitResultsDFAnalysis

Method

All compounds were non-detectable for this sample.

Page 4 of 62Total Page Count: 62

Page 61: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/28/18

Date Reported: 04/02/18

Sample Result Summary

1803295-019GW 16

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/L340115.021SW8260B

Page 5 of 62Total Page Count: 62

Page 62: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 11:00

14121.001.000

282 S. Montgomery

S6 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-001A

SDG:

Prep Batch ID: 1103868

Prep Batch Date/Time: 3/29/18 9:11:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430643SW8260B 13:14 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430643SW8260B 13:14 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430643SW8260B 13:14 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430643SW8260B 13:14 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430643SW8260B 13:14 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430643SW8260B 13:14 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430643SW8260B 13:14 NP

NDMTBE 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430643SW8260B 13:14 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430643SW8260B 13:14 NP

NDETBE 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430643SW8260B 13:14 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

NDChloroform 03/29/182.4 101 ug/Kg 430643SW8260B 13:14 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430643SW8260B 13:14 NP

NDBenzene 03/29/182.2 101 ug/Kg 430643SW8260B 13:14 NP

NDTAME 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430643SW8260B 13:14 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

17.3Toluene 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

49.3Tetrachloroethylene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

Page 6 of 62Total Page Count: 62

Page 63: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 11:00

14121.001.000

282 S. Montgomery

S6 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-001A

SDG:

Prep Batch ID: 1103868

Prep Batch Date/Time: 3/29/18 9:11:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430643SW8260B 13:14 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

NDStyrene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

NDBromoform 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 13:14 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430643SW8260B 13:14 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:14 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430643SW8260B 13:14 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430643SW8260B 13:14 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430643SW8260B 13:14 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:14 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430643SW8260B 13:14 NP

97.9(S) Dibromofluoromethane 03/29/18% 430643SW8260B 13:14 NP59.8 - 148

110(S) Toluene-d8 03/29/18% 430643SW8260B 13:14 NP55.2 - 133

98.2(S) 4-Bromofluorobenzene 03/29/18% 430643SW8260B 13:14 NP55.8 - 141

Page 7 of 62Total Page Count: 62

Page 64: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 11:05

14121.001.000

282 S. Montgomery

S6 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-002A

SDG:

Prep Batch ID: 1103868

Prep Batch Date/Time: 3/29/18 9:11:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430643SW8260B 13:50 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430643SW8260B 13:50 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430643SW8260B 13:50 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430643SW8260B 13:50 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430643SW8260B 13:50 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430643SW8260B 13:50 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430643SW8260B 13:50 NP

NDMTBE 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430643SW8260B 13:50 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430643SW8260B 13:50 NP

NDETBE 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430643SW8260B 13:50 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

NDChloroform 03/29/182.4 101 ug/Kg 430643SW8260B 13:50 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430643SW8260B 13:50 NP

NDBenzene 03/29/182.2 101 ug/Kg 430643SW8260B 13:50 NP

NDTAME 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430643SW8260B 13:50 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

NDToluene 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

32.4Tetrachloroethylene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

Page 8 of 62Total Page Count: 62

Page 65: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 11:05

14121.001.000

282 S. Montgomery

S6 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-002A

SDG:

Prep Batch ID: 1103868

Prep Batch Date/Time: 3/29/18 9:11:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430643SW8260B 13:50 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

NDStyrene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

NDBromoform 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 13:50 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430643SW8260B 13:50 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430643SW8260B 13:50 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430643SW8260B 13:50 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430643SW8260B 13:50 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430643SW8260B 13:50 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 13:50 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430643SW8260B 13:50 NP

97.0(S) Dibromofluoromethane 03/29/18% 430643SW8260B 13:50 NP59.8 - 148

111(S) Toluene-d8 03/29/18% 430643SW8260B 13:50 NP55.2 - 133

104(S) 4-Bromofluorobenzene 03/29/18% 430643SW8260B 13:50 NP55.8 - 141

Page 9 of 62Total Page Count: 62

Page 66: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 11:10

14121.001.000

282 S. Montgomery

S6 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-003A

SDG:

Prep Batch ID: 1103868

Prep Batch Date/Time: 3/29/18 9:11:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430643SW8260B 14:23 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430643SW8260B 14:23 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430643SW8260B 14:23 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430643SW8260B 14:23 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430643SW8260B 14:23 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430643SW8260B 14:23 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430643SW8260B 14:23 NP

NDMTBE 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430643SW8260B 14:23 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430643SW8260B 14:23 NP

NDETBE 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430643SW8260B 14:23 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

NDChloroform 03/29/182.4 101 ug/Kg 430643SW8260B 14:23 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430643SW8260B 14:23 NP

NDBenzene 03/29/182.2 101 ug/Kg 430643SW8260B 14:23 NP

NDTAME 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430643SW8260B 14:23 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

NDToluene 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

43.4Tetrachloroethylene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

Page 10 of 62Total Page Count: 62

Page 67: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 11:10

14121.001.000

282 S. Montgomery

S6 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-003A

SDG:

Prep Batch ID: 1103868

Prep Batch Date/Time: 3/29/18 9:11:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430643SW8260B 14:23 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

NDStyrene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

NDBromoform 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430643SW8260B 14:23 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430643SW8260B 14:23 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430643SW8260B 14:23 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430643SW8260B 14:23 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430643SW8260B 14:23 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430643SW8260B 14:23 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430643SW8260B 14:23 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430643SW8260B 14:23 NP

104(S) Dibromofluoromethane 03/29/18% 430643SW8260B 14:23 NP59.8 - 148

106(S) Toluene-d8 03/29/18% 430643SW8260B 14:23 NP55.2 - 133

101(S) 4-Bromofluorobenzene 03/29/18% 430643SW8260B 14:23 NP55.8 - 141

Page 11 of 62Total Page Count: 62

Page 68: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:45

14121.001.000

282 S. Montgomery

S7 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-004A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/181.2 101 ug/Kg 430680SW8260B 15:33 BP

NDChloromethane 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

NDVinyl Chloride 03/30/182.0 101 ug/Kg 430680SW8260B 15:33 BP

NDBromomethane 03/30/182.7 101 ug/Kg 430680SW8260B 15:33 BP

NDChloroethane 03/30/183.0 101 ug/Kg 430680SW8260B 15:33 BP

NDTrichlorofluoromethane 03/30/182.1 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1-Dichloroethene 03/30/182.0 101 ug/Kg 430680SW8260B 15:33 BP

NDFreon 113 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

NDMethylene Chloride 03/30/187.1 101 ug/Kg 430680SW8260B 15:33 BP

NDtrans-1,2-Dichloroethene 03/30/182.1 101 ug/Kg 430680SW8260B 15:33 BP

NDMTBE 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

NDtert-Butanol 03/30/1812 501 ug/Kg 430680SW8260B 15:33 BP

NDDiisopropyl ether (DIPE) 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1-Dichloroethane 03/30/182.2 101 ug/Kg 430680SW8260B 15:33 BP

NDETBE 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

NDcis-1,2-Dichloroethene 03/30/182.2 101 ug/Kg 430680SW8260B 15:33 BP

ND2,2-Dichloropropane 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

NDBromochloromethane 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

NDChloroform 03/30/182.4 101 ug/Kg 430680SW8260B 15:33 BP

NDCarbon Tetrachloride 03/30/182.1 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1,1-Trichloroethane 03/30/182.1 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1-Dichloropropene 03/30/182.0 101 ug/Kg 430680SW8260B 15:33 BP

NDBenzene 03/30/182.2 101 ug/Kg 430680SW8260B 15:33 BP

NDTAME 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2-Dichloroethane 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

NDTrichloroethylene 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

NDDibromomethane 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2-Dichloropropane 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

NDBromodichloromethane 03/30/182.0 101 ug/Kg 430680SW8260B 15:33 BP

NDcis-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

NDToluene 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

25.7Tetrachloroethylene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

NDtrans-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1,2-Trichloroethane 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

NDDibromochloromethane 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

ND1,3-Dichloropropane 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

Page 12 of 62Total Page Count: 62

Page 69: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:45

14121.001.000

282 S. Montgomery

S7 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-004A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

NDChlorobenzene 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

NDEthyl Benzene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1,1,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

NDm,p-Xylene 03/30/183.2 101 ug/Kg 430680SW8260B 15:33 BP

NDo-Xylene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

NDStyrene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

NDBromoform 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

NDIsopropyl Benzene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

NDn-Propylbenzene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

NDBromobenzene 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

ND1,1,2,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

ND2-Chlorotoluene 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

ND1,3,5-Trimethylbenzene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2,3-Trichloropropane 03/30/181.9 101 ug/Kg 430680SW8260B 15:33 BP

ND4-Chlorotoluene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

NDtert-Butylbenzene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2,4-Trimethylbenzene 03/30/181.4 101 ug/Kg 430680SW8260B 15:33 BP

NDsec-Butyl Benzene 03/30/181.6 101 ug/Kg 430680SW8260B 15:33 BP

NDp-Isopropyltoluene 03/30/181.5 101 ug/Kg 430680SW8260B 15:33 BP

ND1,3-Dichlorobenzene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

ND1,4-Dichlorobenzene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

NDn-Butylbenzene 03/30/181.5 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2-Dichlorobenzene 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2-Dibromo-3-Chloropropane 03/30/181.8 101 ug/Kg 430680SW8260B 15:33 BP

NDHexachlorobutadiene 03/30/181.4 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2,4-Trichlorobenzene 03/30/181.5 101 ug/Kg 430680SW8260B 15:33 BP

NDNaphthalene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

ND1,2,3-Trichlorobenzene 03/30/181.7 101 ug/Kg 430680SW8260B 15:33 BP

ND2-Butanone 03/30/182.3 101 ug/Kg 430680SW8260B 15:33 BP

95.7(S) Dibromofluoromethane 03/30/18% 430680SW8260B 15:33 BP59.8 - 148

103(S) Toluene-d8 03/30/18% 430680SW8260B 15:33 BP55.2 - 133

120(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 15:33 BP55.8 - 141

Page 13 of 62Total Page Count: 62

Page 70: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:50

14121.001.000

282 S. Montgomery

S7 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-005A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430674SW8260B 14:00 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430674SW8260B 14:00 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430674SW8260B 14:00 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430674SW8260B 14:00 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430674SW8260B 14:00 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430674SW8260B 14:00 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430674SW8260B 14:00 NP

NDMTBE 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430674SW8260B 14:00 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430674SW8260B 14:00 NP

NDETBE 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430674SW8260B 14:00 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

NDChloroform 03/29/182.4 101 ug/Kg 430674SW8260B 14:00 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430674SW8260B 14:00 NP

NDBenzene 03/29/182.2 101 ug/Kg 430674SW8260B 14:00 NP

NDTAME 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430674SW8260B 14:00 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

NDToluene 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

13.9Tetrachloroethylene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

Page 14 of 62Total Page Count: 62

Page 71: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:50

14121.001.000

282 S. Montgomery

S7 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-005A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430674SW8260B 14:00 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

NDStyrene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

NDBromoform 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 14:00 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430674SW8260B 14:00 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:00 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430674SW8260B 14:00 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 14:00 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430674SW8260B 14:00 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:00 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430674SW8260B 14:00 NP

92.4(S) Dibromofluoromethane 03/29/18% 430674SW8260B 14:00 NP59.8 - 148

102(S) Toluene-d8 03/29/18% 430674SW8260B 14:00 NP55.2 - 133

111(S) 4-Bromofluorobenzene 03/29/18% 430674SW8260B 14:00 NP55.8 - 141

Page 15 of 62Total Page Count: 62

Page 72: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:55

14121.001.000

282 S. Montgomery

S7 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-006A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430674SW8260B 14:36 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430674SW8260B 14:36 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430674SW8260B 14:36 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430674SW8260B 14:36 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430674SW8260B 14:36 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430674SW8260B 14:36 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430674SW8260B 14:36 NP

NDMTBE 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430674SW8260B 14:36 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430674SW8260B 14:36 NP

NDETBE 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430674SW8260B 14:36 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

NDChloroform 03/29/182.4 101 ug/Kg 430674SW8260B 14:36 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430674SW8260B 14:36 NP

NDBenzene 03/29/182.2 101 ug/Kg 430674SW8260B 14:36 NP

NDTAME 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430674SW8260B 14:36 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

NDToluene 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

40.6Tetrachloroethylene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

Page 16 of 62Total Page Count: 62

Page 73: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 13:55

14121.001.000

282 S. Montgomery

S7 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-006A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430674SW8260B 14:36 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

NDStyrene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

NDBromoform 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 14:36 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430674SW8260B 14:36 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 14:36 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430674SW8260B 14:36 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 14:36 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430674SW8260B 14:36 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 14:36 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430674SW8260B 14:36 NP

95.0(S) Dibromofluoromethane 03/29/18% 430674SW8260B 14:36 NP59.8 - 148

99.4(S) Toluene-d8 03/29/18% 430674SW8260B 14:36 NP55.2 - 133

111(S) 4-Bromofluorobenzene 03/29/18% 430674SW8260B 14:36 NP55.8 - 141

Page 17 of 62Total Page Count: 62

Page 74: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:30

14121.001.000

282 S. Montgomery

S8 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-007A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430674SW8260B 15:12 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430674SW8260B 15:12 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430674SW8260B 15:12 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430674SW8260B 15:12 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430674SW8260B 15:12 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430674SW8260B 15:12 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430674SW8260B 15:12 NP

NDMTBE 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430674SW8260B 15:12 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430674SW8260B 15:12 NP

NDETBE 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430674SW8260B 15:12 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

NDChloroform 03/29/182.4 101 ug/Kg 430674SW8260B 15:12 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430674SW8260B 15:12 NP

NDBenzene 03/29/182.2 101 ug/Kg 430674SW8260B 15:12 NP

NDTAME 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430674SW8260B 15:12 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

15.5Toluene 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDTetrachloroethylene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

Page 18 of 62Total Page Count: 62

Page 75: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:30

14121.001.000

282 S. Montgomery

S8 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-007A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430674SW8260B 15:12 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

NDStyrene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

NDBromoform 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 15:12 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430674SW8260B 15:12 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:12 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430674SW8260B 15:12 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 15:12 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430674SW8260B 15:12 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:12 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430674SW8260B 15:12 NP

95.2(S) Dibromofluoromethane 03/29/18% 430674SW8260B 15:12 NP59.8 - 148

106(S) Toluene-d8 03/29/18% 430674SW8260B 15:12 NP55.2 - 133

125(S) 4-Bromofluorobenzene 03/29/18% 430674SW8260B 15:12 NP55.8 - 141

Page 19 of 62Total Page Count: 62

Page 76: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:35

14121.001.000

282 S. Montgomery

S8 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-008A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/181.2 101 ug/Kg 430674SW8260B 15:50 NP

NDChloromethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDVinyl Chloride 03/29/182.0 101 ug/Kg 430674SW8260B 15:50 NP

NDBromomethane 03/29/182.7 101 ug/Kg 430674SW8260B 15:50 NP

NDChloroethane 03/29/183.0 101 ug/Kg 430674SW8260B 15:50 NP

NDTrichlorofluoromethane 03/29/182.1 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1-Dichloroethene 03/29/182.0 101 ug/Kg 430674SW8260B 15:50 NP

NDFreon 113 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

NDMethylene Chloride 03/29/187.1 101 ug/Kg 430674SW8260B 15:50 NP

NDtrans-1,2-Dichloroethene 03/29/182.1 101 ug/Kg 430674SW8260B 15:50 NP

NDMTBE 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

NDtert-Butanol 03/29/1812 501 ug/Kg 430674SW8260B 15:50 NP

NDDiisopropyl ether (DIPE) 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1-Dichloroethane 03/29/182.2 101 ug/Kg 430674SW8260B 15:50 NP

NDETBE 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

NDcis-1,2-Dichloroethene 03/29/182.2 101 ug/Kg 430674SW8260B 15:50 NP

ND2,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

NDBromochloromethane 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

NDChloroform 03/29/182.4 101 ug/Kg 430674SW8260B 15:50 NP

NDCarbon Tetrachloride 03/29/182.1 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1,1-Trichloroethane 03/29/182.1 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1-Dichloropropene 03/29/182.0 101 ug/Kg 430674SW8260B 15:50 NP

NDBenzene 03/29/182.2 101 ug/Kg 430674SW8260B 15:50 NP

NDTAME 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2-Dichloroethane 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

NDTrichloroethylene 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDDibromomethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2-Dichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

NDBromodichloromethane 03/29/182.0 101 ug/Kg 430674SW8260B 15:50 NP

NDcis-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

NDToluene 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDTetrachloroethylene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

NDtrans-1,3-Dichloropropene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1,2-Trichloroethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDDibromochloromethane 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

ND1,3-Dichloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

Page 20 of 62Total Page Count: 62

Page 77: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:35

14121.001.000

282 S. Montgomery

S8 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-008A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDChlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDEthyl Benzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1,1,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

NDm,p-Xylene 03/29/183.2 101 ug/Kg 430674SW8260B 15:50 NP

NDo-Xylene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

NDStyrene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

NDBromoform 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

NDIsopropyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

NDn-Propylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

NDBromobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

ND1,1,2,2-Tetrachloroethane 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

ND2-Chlorotoluene 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

ND1,3,5-Trimethylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2,3-Trichloropropane 03/29/181.9 101 ug/Kg 430674SW8260B 15:50 NP

ND4-Chlorotoluene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

NDtert-Butylbenzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2,4-Trimethylbenzene 03/29/181.4 101 ug/Kg 430674SW8260B 15:50 NP

NDsec-Butyl Benzene 03/29/181.6 101 ug/Kg 430674SW8260B 15:50 NP

NDp-Isopropyltoluene 03/29/181.5 101 ug/Kg 430674SW8260B 15:50 NP

ND1,3-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

ND1,4-Dichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

NDn-Butylbenzene 03/29/181.5 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2-Dichlorobenzene 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2-Dibromo-3-Chloropropane 03/29/181.8 101 ug/Kg 430674SW8260B 15:50 NP

NDHexachlorobutadiene 03/29/181.4 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2,4-Trichlorobenzene 03/29/181.5 101 ug/Kg 430674SW8260B 15:50 NP

NDNaphthalene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

ND1,2,3-Trichlorobenzene 03/29/181.7 101 ug/Kg 430674SW8260B 15:50 NP

ND2-Butanone 03/29/182.3 101 ug/Kg 430674SW8260B 15:50 NP

96.7(S) Dibromofluoromethane 03/29/18% 430674SW8260B 15:50 NP59.8 - 148

101(S) Toluene-d8 03/29/18% 430674SW8260B 15:50 NP55.2 - 133

116(S) 4-Bromofluorobenzene 03/29/18% 430674SW8260B 15:50 NP55.8 - 141

Page 21 of 62Total Page Count: 62

Page 78: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:40

14121.001.000

282 S. Montgomery

S8 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-009A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/181.2 101 ug/Kg 430680SW8260B 16:09 BP

NDChloromethane 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

NDVinyl Chloride 03/30/182.0 101 ug/Kg 430680SW8260B 16:09 BP

NDBromomethane 03/30/182.7 101 ug/Kg 430680SW8260B 16:09 BP

NDChloroethane 03/30/183.0 101 ug/Kg 430680SW8260B 16:09 BP

NDTrichlorofluoromethane 03/30/182.1 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1-Dichloroethene 03/30/182.0 101 ug/Kg 430680SW8260B 16:09 BP

NDFreon 113 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

NDMethylene Chloride 03/30/187.1 101 ug/Kg 430680SW8260B 16:09 BP

NDtrans-1,2-Dichloroethene 03/30/182.1 101 ug/Kg 430680SW8260B 16:09 BP

NDMTBE 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

NDtert-Butanol 03/30/1812 501 ug/Kg 430680SW8260B 16:09 BP

NDDiisopropyl ether (DIPE) 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1-Dichloroethane 03/30/182.2 101 ug/Kg 430680SW8260B 16:09 BP

NDETBE 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

NDcis-1,2-Dichloroethene 03/30/182.2 101 ug/Kg 430680SW8260B 16:09 BP

ND2,2-Dichloropropane 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

NDBromochloromethane 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

NDChloroform 03/30/182.4 101 ug/Kg 430680SW8260B 16:09 BP

NDCarbon Tetrachloride 03/30/182.1 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1,1-Trichloroethane 03/30/182.1 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1-Dichloropropene 03/30/182.0 101 ug/Kg 430680SW8260B 16:09 BP

NDBenzene 03/30/182.2 101 ug/Kg 430680SW8260B 16:09 BP

NDTAME 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2-Dichloroethane 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

NDTrichloroethylene 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

NDDibromomethane 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2-Dichloropropane 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

NDBromodichloromethane 03/30/182.0 101 ug/Kg 430680SW8260B 16:09 BP

NDcis-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

12.4Toluene 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

21.4Tetrachloroethylene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

NDtrans-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1,2-Trichloroethane 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

NDDibromochloromethane 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

ND1,3-Dichloropropane 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

Page 22 of 62Total Page Count: 62

Page 79: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 14:40

14121.001.000

282 S. Montgomery

S8 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-009A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

NDChlorobenzene 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

NDEthyl Benzene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1,1,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

NDm,p-Xylene 03/30/183.2 101 ug/Kg 430680SW8260B 16:09 BP

NDo-Xylene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

NDStyrene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

NDBromoform 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

NDIsopropyl Benzene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

NDn-Propylbenzene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

NDBromobenzene 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

ND1,1,2,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

ND2-Chlorotoluene 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

ND1,3,5-Trimethylbenzene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2,3-Trichloropropane 03/30/181.9 101 ug/Kg 430680SW8260B 16:09 BP

ND4-Chlorotoluene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

NDtert-Butylbenzene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2,4-Trimethylbenzene 03/30/181.4 101 ug/Kg 430680SW8260B 16:09 BP

NDsec-Butyl Benzene 03/30/181.6 101 ug/Kg 430680SW8260B 16:09 BP

NDp-Isopropyltoluene 03/30/181.5 101 ug/Kg 430680SW8260B 16:09 BP

ND1,3-Dichlorobenzene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

ND1,4-Dichlorobenzene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

NDn-Butylbenzene 03/30/181.5 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2-Dichlorobenzene 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2-Dibromo-3-Chloropropane 03/30/181.8 101 ug/Kg 430680SW8260B 16:09 BP

NDHexachlorobutadiene 03/30/181.4 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2,4-Trichlorobenzene 03/30/181.5 101 ug/Kg 430680SW8260B 16:09 BP

NDNaphthalene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

ND1,2,3-Trichlorobenzene 03/30/181.7 101 ug/Kg 430680SW8260B 16:09 BP

ND2-Butanone 03/30/182.3 101 ug/Kg 430680SW8260B 16:09 BP

106(S) Dibromofluoromethane 03/30/18% 430680SW8260B 16:09 BP59.8 - 148

107(S) Toluene-d8 03/30/18% 430680SW8260B 16:09 BP55.2 - 133

138(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 16:09 BP55.8 - 141

Page 23 of 62Total Page Count: 62

Page 80: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 9:50

14121.001.000

282 S. Montgomery

S10 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-010A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/18120 1000100 ug/Kg 430680SW8260B 18:33 BP

NDChloromethane 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

NDVinyl Chloride 03/30/18200 1000100 ug/Kg 430680SW8260B 18:33 BP

NDBromomethane 03/30/18270 1000100 ug/Kg 430680SW8260B 18:33 BP

NDChloroethane 03/30/18300 1000100 ug/Kg 430680SW8260B 18:33 BP

NDTrichlorofluoromethane 03/30/18210 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1-Dichloroethene 03/30/18200 1000100 ug/Kg 430680SW8260B 18:33 BP

NDFreon 113 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

NDMethylene Chloride 03/30/18710 1000100 ug/Kg 430680SW8260B 18:33 BP

NDtrans-1,2-Dichloroethene 03/30/18210 1000100 ug/Kg 430680SW8260B 18:33 BP

NDMTBE 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

NDtert-Butanol 03/30/181200 5000100 ug/Kg 430680SW8260B 18:33 BP

NDDiisopropyl ether (DIPE) 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1-Dichloroethane 03/30/18220 1000100 ug/Kg 430680SW8260B 18:33 BP

NDETBE 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

NDcis-1,2-Dichloroethene 03/30/18220 1000100 ug/Kg 430680SW8260B 18:33 BP

ND2,2-Dichloropropane 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

NDBromochloromethane 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

NDChloroform 03/30/18240 1000100 ug/Kg 430680SW8260B 18:33 BP

NDCarbon Tetrachloride 03/30/18210 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1,1-Trichloroethane 03/30/18210 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1-Dichloropropene 03/30/18200 1000100 ug/Kg 430680SW8260B 18:33 BP

NDBenzene 03/30/18220 1000100 ug/Kg 430680SW8260B 18:33 BP

NDTAME 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2-Dichloroethane 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

NDTrichloroethylene 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

NDDibromomethane 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2-Dichloropropane 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

NDBromodichloromethane 03/30/18200 1000100 ug/Kg 430680SW8260B 18:33 BP

NDcis-1,3-Dichloropropene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

NDToluene 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

4180Tetrachloroethylene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

NDtrans-1,3-Dichloropropene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1,2-Trichloroethane 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

NDDibromochloromethane 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,3-Dichloropropane 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

Page 24 of 62Total Page Count: 62

Page 81: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 9:50

14121.001.000

282 S. Montgomery

S10 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-010A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

NDChlorobenzene 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

NDEthyl Benzene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1,1,2-Tetrachloroethane 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

NDm,p-Xylene 03/30/18320 1000100 ug/Kg 430680SW8260B 18:33 BP

NDo-Xylene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

NDStyrene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

NDBromoform 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

NDIsopropyl Benzene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

NDn-Propylbenzene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

NDBromobenzene 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,1,2,2-Tetrachloroethane 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

ND2-Chlorotoluene 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,3,5-Trimethylbenzene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2,3-Trichloropropane 03/30/18190 1000100 ug/Kg 430680SW8260B 18:33 BP

ND4-Chlorotoluene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

NDtert-Butylbenzene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2,4-Trimethylbenzene 03/30/18140 1000100 ug/Kg 430680SW8260B 18:33 BP

NDsec-Butyl Benzene 03/30/18160 1000100 ug/Kg 430680SW8260B 18:33 BP

NDp-Isopropyltoluene 03/30/18150 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,3-Dichlorobenzene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,4-Dichlorobenzene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

NDn-Butylbenzene 03/30/18150 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2-Dichlorobenzene 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2-Dibromo-3-Chloropropane 03/30/18180 1000100 ug/Kg 430680SW8260B 18:33 BP

NDHexachlorobutadiene 03/30/18140 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2,4-Trichlorobenzene 03/30/18150 1000100 ug/Kg 430680SW8260B 18:33 BP

NDNaphthalene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

ND1,2,3-Trichlorobenzene 03/30/18170 1000100 ug/Kg 430680SW8260B 18:33 BP

ND2-Butanone 03/30/18230 1000100 ug/Kg 430680SW8260B 18:33 BP

84.0(S) Dibromofluoromethane 03/30/18% 430680SW8260B 18:33 BP59.8 - 148

83.5(S) Toluene-d8 03/30/18% 430680SW8260B 18:33 BP55.2 - 133

97.7(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 18:33 BP55.8 - 141

NOTE: Methanol Extracted

Page 25 of 62Total Page Count: 62

Page 82: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 9:55

14121.001.000

282 S. Montgomery

S10 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-011A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/29/186.1 505 ug/Kg 430674SW8260B 21:49 NP

NDChloromethane 03/29/189.1 505 ug/Kg 430674SW8260B 21:49 NP

NDVinyl Chloride 03/29/1810 505 ug/Kg 430674SW8260B 21:49 NP

NDBromomethane 03/29/1813 505 ug/Kg 430674SW8260B 21:49 NP

NDChloroethane 03/29/1815 505 ug/Kg 430674SW8260B 21:49 NP

NDTrichlorofluoromethane 03/29/1810 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1-Dichloroethene 03/29/1810 505 ug/Kg 430674SW8260B 21:49 NP

NDFreon 113 03/29/189.4 505 ug/Kg 430674SW8260B 21:49 NP

NDMethylene Chloride 03/29/1836 505 ug/Kg 430674SW8260B 21:49 NP

NDtrans-1,2-Dichloroethene 03/29/1810 505 ug/Kg 430674SW8260B 21:49 NP

NDMTBE 03/29/1812 505 ug/Kg 430674SW8260B 21:49 NP

NDtert-Butanol 03/29/1858 2505 ug/Kg 430674SW8260B 21:49 NP

NDDiisopropyl ether (DIPE) 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1-Dichloroethane 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

NDETBE 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

NDcis-1,2-Dichloroethene 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

ND2,2-Dichloropropane 03/29/189.6 505 ug/Kg 430674SW8260B 21:49 NP

NDBromochloromethane 03/29/1812 505 ug/Kg 430674SW8260B 21:49 NP

NDChloroform 03/29/1812 505 ug/Kg 430674SW8260B 21:49 NP

NDCarbon Tetrachloride 03/29/1810 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1,1-Trichloroethane 03/29/1810 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1-Dichloropropene 03/29/189.9 505 ug/Kg 430674SW8260B 21:49 NP

NDBenzene 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

NDTAME 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2-Dichloroethane 03/29/1812 505 ug/Kg 430674SW8260B 21:49 NP

NDTrichloroethylene 03/29/189.0 505 ug/Kg 430674SW8260B 21:49 NP

NDDibromomethane 03/29/189.2 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2-Dichloropropane 03/29/189.3 505 ug/Kg 430674SW8260B 21:49 NP

NDBromodichloromethane 03/29/189.8 505 ug/Kg 430674SW8260B 21:49 NP

NDcis-1,3-Dichloropropene 03/29/188.0 505 ug/Kg 430674SW8260B 21:49 NP

NDToluene 03/29/189.1 505 ug/Kg 430674SW8260B 21:49 NP

959Tetrachloroethylene 03/29/188.3 505 ug/Kg 430674SW8260B 21:49 NP

NDtrans-1,3-Dichloropropene 03/29/188.2 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1,2-Trichloroethane 03/29/189.2 505 ug/Kg 430674SW8260B 21:49 NP

NDDibromochloromethane 03/29/189.4 505 ug/Kg 430674SW8260B 21:49 NP

ND1,3-Dichloropropane 03/29/189.2 505 ug/Kg 430674SW8260B 21:49 NP

Page 26 of 62Total Page Count: 62

Page 83: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 9:55

14121.001.000

282 S. Montgomery

S10 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-011A

SDG:

Prep Batch ID: 1103900

Prep Batch Date/Time: 3/29/18 9:22:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/29/189.0 505 ug/Kg 430674SW8260B 21:49 NP

NDChlorobenzene 03/29/189.1 505 ug/Kg 430674SW8260B 21:49 NP

NDEthyl Benzene 03/29/188.3 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1,1,2-Tetrachloroethane 03/29/189.7 505 ug/Kg 430674SW8260B 21:49 NP

NDm,p-Xylene 03/29/1816 505 ug/Kg 430674SW8260B 21:49 NP

NDo-Xylene 03/29/188.6 505 ug/Kg 430674SW8260B 21:49 NP

NDStyrene 03/29/188.2 505 ug/Kg 430674SW8260B 21:49 NP

NDBromoform 03/29/188.4 505 ug/Kg 430674SW8260B 21:49 NP

NDIsopropyl Benzene 03/29/188.1 505 ug/Kg 430674SW8260B 21:49 NP

NDn-Propylbenzene 03/29/187.8 505 ug/Kg 430674SW8260B 21:49 NP

NDBromobenzene 03/29/188.8 505 ug/Kg 430674SW8260B 21:49 NP

ND1,1,2,2-Tetrachloroethane 03/29/189.6 505 ug/Kg 430674SW8260B 21:49 NP

ND2-Chlorotoluene 03/29/188.8 505 ug/Kg 430674SW8260B 21:49 NP

ND1,3,5-Trimethylbenzene 03/29/187.9 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2,3-Trichloropropane 03/29/189.5 505 ug/Kg 430674SW8260B 21:49 NP

ND4-Chlorotoluene 03/29/188.2 505 ug/Kg 430674SW8260B 21:49 NP

NDtert-Butylbenzene 03/29/188.1 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2,4-Trimethylbenzene 03/29/186.8 505 ug/Kg 430674SW8260B 21:49 NP

NDsec-Butyl Benzene 03/29/187.8 505 ug/Kg 430674SW8260B 21:49 NP

NDp-Isopropyltoluene 03/29/187.3 505 ug/Kg 430674SW8260B 21:49 NP

ND1,3-Dichlorobenzene 03/29/188.3 505 ug/Kg 430674SW8260B 21:49 NP

ND1,4-Dichlorobenzene 03/29/188.6 505 ug/Kg 430674SW8260B 21:49 NP

NDn-Butylbenzene 03/29/187.3 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2-Dichlorobenzene 03/29/188.9 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2-Dibromo-3-Chloropropane 03/29/189.2 505 ug/Kg 430674SW8260B 21:49 NP

NDHexachlorobutadiene 03/29/186.8 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2,4-Trichlorobenzene 03/29/187.4 505 ug/Kg 430674SW8260B 21:49 NP

NDNaphthalene 03/29/188.4 505 ug/Kg 430674SW8260B 21:49 NP

ND1,2,3-Trichlorobenzene 03/29/188.3 505 ug/Kg 430674SW8260B 21:49 NP

ND2-Butanone 03/29/1811 505 ug/Kg 430674SW8260B 21:49 NP

98.2(S) Dibromofluoromethane 03/29/18% 430674SW8260B 21:49 NP59.8 - 148

104(S) Toluene-d8 03/29/18% 430674SW8260B 21:49 NP55.2 - 133

117(S) 4-Bromofluorobenzene 03/29/18% 430674SW8260B 21:49 NP55.8 - 141

Page 27 of 62Total Page Count: 62

Page 84: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 10:00

14121.001.000

282 S. Montgomery

S10 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-012A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/186.1 505 ug/Kg 430680SW8260B 17:21 BP

NDChloromethane 03/30/189.1 505 ug/Kg 430680SW8260B 17:21 BP

NDVinyl Chloride 03/30/1810 505 ug/Kg 430680SW8260B 17:21 BP

NDBromomethane 03/30/1813 505 ug/Kg 430680SW8260B 17:21 BP

NDChloroethane 03/30/1815 505 ug/Kg 430680SW8260B 17:21 BP

NDTrichlorofluoromethane 03/30/1810 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1-Dichloroethene 03/30/1810 505 ug/Kg 430680SW8260B 17:21 BP

NDFreon 113 03/30/189.4 505 ug/Kg 430680SW8260B 17:21 BP

NDMethylene Chloride 03/30/1836 505 ug/Kg 430680SW8260B 17:21 BP

NDtrans-1,2-Dichloroethene 03/30/1810 505 ug/Kg 430680SW8260B 17:21 BP

NDMTBE 03/30/1812 505 ug/Kg 430680SW8260B 17:21 BP

NDtert-Butanol 03/30/1858 2505 ug/Kg 430680SW8260B 17:21 BP

NDDiisopropyl ether (DIPE) 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1-Dichloroethane 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

NDETBE 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

NDcis-1,2-Dichloroethene 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

ND2,2-Dichloropropane 03/30/189.6 505 ug/Kg 430680SW8260B 17:21 BP

NDBromochloromethane 03/30/1812 505 ug/Kg 430680SW8260B 17:21 BP

NDChloroform 03/30/1812 505 ug/Kg 430680SW8260B 17:21 BP

NDCarbon Tetrachloride 03/30/1810 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1,1-Trichloroethane 03/30/1810 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1-Dichloropropene 03/30/189.9 505 ug/Kg 430680SW8260B 17:21 BP

NDBenzene 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

NDTAME 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2-Dichloroethane 03/30/1812 505 ug/Kg 430680SW8260B 17:21 BP

NDTrichloroethylene 03/30/189.0 505 ug/Kg 430680SW8260B 17:21 BP

NDDibromomethane 03/30/189.2 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2-Dichloropropane 03/30/189.3 505 ug/Kg 430680SW8260B 17:21 BP

NDBromodichloromethane 03/30/189.8 505 ug/Kg 430680SW8260B 17:21 BP

NDcis-1,3-Dichloropropene 03/30/188.0 505 ug/Kg 430680SW8260B 17:21 BP

NDToluene 03/30/189.1 505 ug/Kg 430680SW8260B 17:21 BP

E1710Tetrachloroethylene 03/30/188.3 505 ug/Kg 430680SW8260B 17:21 BP

NDtrans-1,3-Dichloropropene 03/30/188.2 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1,2-Trichloroethane 03/30/189.2 505 ug/Kg 430680SW8260B 17:21 BP

NDDibromochloromethane 03/30/189.4 505 ug/Kg 430680SW8260B 17:21 BP

ND1,3-Dichloropropane 03/30/189.2 505 ug/Kg 430680SW8260B 17:21 BP

Page 28 of 62Total Page Count: 62

Page 85: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 10:00

14121.001.000

282 S. Montgomery

S10 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-012A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/189.0 505 ug/Kg 430680SW8260B 17:21 BP

NDChlorobenzene 03/30/189.1 505 ug/Kg 430680SW8260B 17:21 BP

NDEthyl Benzene 03/30/188.3 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1,1,2-Tetrachloroethane 03/30/189.7 505 ug/Kg 430680SW8260B 17:21 BP

NDm,p-Xylene 03/30/1816 505 ug/Kg 430680SW8260B 17:21 BP

NDo-Xylene 03/30/188.6 505 ug/Kg 430680SW8260B 17:21 BP

NDStyrene 03/30/188.2 505 ug/Kg 430680SW8260B 17:21 BP

NDBromoform 03/30/188.4 505 ug/Kg 430680SW8260B 17:21 BP

NDIsopropyl Benzene 03/30/188.1 505 ug/Kg 430680SW8260B 17:21 BP

NDn-Propylbenzene 03/30/187.8 505 ug/Kg 430680SW8260B 17:21 BP

NDBromobenzene 03/30/188.8 505 ug/Kg 430680SW8260B 17:21 BP

ND1,1,2,2-Tetrachloroethane 03/30/189.6 505 ug/Kg 430680SW8260B 17:21 BP

ND2-Chlorotoluene 03/30/188.8 505 ug/Kg 430680SW8260B 17:21 BP

ND1,3,5-Trimethylbenzene 03/30/187.9 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2,3-Trichloropropane 03/30/189.5 505 ug/Kg 430680SW8260B 17:21 BP

ND4-Chlorotoluene 03/30/188.2 505 ug/Kg 430680SW8260B 17:21 BP

NDtert-Butylbenzene 03/30/188.1 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2,4-Trimethylbenzene 03/30/186.8 505 ug/Kg 430680SW8260B 17:21 BP

NDsec-Butyl Benzene 03/30/187.8 505 ug/Kg 430680SW8260B 17:21 BP

NDp-Isopropyltoluene 03/30/187.3 505 ug/Kg 430680SW8260B 17:21 BP

ND1,3-Dichlorobenzene 03/30/188.3 505 ug/Kg 430680SW8260B 17:21 BP

ND1,4-Dichlorobenzene 03/30/188.6 505 ug/Kg 430680SW8260B 17:21 BP

NDn-Butylbenzene 03/30/187.3 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2-Dichlorobenzene 03/30/188.9 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2-Dibromo-3-Chloropropane 03/30/189.2 505 ug/Kg 430680SW8260B 17:21 BP

NDHexachlorobutadiene 03/30/186.8 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2,4-Trichlorobenzene 03/30/187.4 505 ug/Kg 430680SW8260B 17:21 BP

NDNaphthalene 03/30/188.4 505 ug/Kg 430680SW8260B 17:21 BP

ND1,2,3-Trichlorobenzene 03/30/188.3 505 ug/Kg 430680SW8260B 17:21 BP

ND2-Butanone 03/30/1811 505 ug/Kg 430680SW8260B 17:21 BP

102(S) Dibromofluoromethane 03/30/18% 430680SW8260B 17:21 BP59.8 - 148

103(S) Toluene-d8 03/30/18% 430680SW8260B 17:21 BP55.2 - 133

121(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 17:21 BP55.8 - 141

NOTE: E - Estimated value. The amount exceeds the calibration range but within linear working range of the instrument.

Page 29 of 62Total Page Count: 62

Page 86: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:45

14121.001.000

282 S. Montgomery

S16 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-013A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/183.1 252.5 ug/Kg 430680SW8260B 16:45 BP

NDChloromethane 03/30/184.6 252.5 ug/Kg 430680SW8260B 16:45 BP

NDVinyl Chloride 03/30/185.1 252.5 ug/Kg 430680SW8260B 16:45 BP

NDBromomethane 03/30/186.7 252.5 ug/Kg 430680SW8260B 16:45 BP

NDChloroethane 03/30/187.5 252.5 ug/Kg 430680SW8260B 16:45 BP

NDTrichlorofluoromethane 03/30/185.2 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1-Dichloroethene 03/30/185.1 252.5 ug/Kg 430680SW8260B 16:45 BP

NDFreon 113 03/30/184.7 252.5 ug/Kg 430680SW8260B 16:45 BP

NDMethylene Chloride 03/30/1818 252.5 ug/Kg 430680SW8260B 16:45 BP

NDtrans-1,2-Dichloroethene 03/30/185.2 252.5 ug/Kg 430680SW8260B 16:45 BP

NDMTBE 03/30/185.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDtert-Butanol 03/30/1829 1302.5 ug/Kg 430680SW8260B 16:45 BP

NDDiisopropyl ether (DIPE) 03/30/185.7 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1-Dichloroethane 03/30/185.5 252.5 ug/Kg 430680SW8260B 16:45 BP

NDETBE 03/30/185.7 252.5 ug/Kg 430680SW8260B 16:45 BP

NDcis-1,2-Dichloroethene 03/30/185.6 252.5 ug/Kg 430680SW8260B 16:45 BP

ND2,2-Dichloropropane 03/30/184.8 252.5 ug/Kg 430680SW8260B 16:45 BP

NDBromochloromethane 03/30/185.8 252.5 ug/Kg 430680SW8260B 16:45 BP

NDChloroform 03/30/185.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDCarbon Tetrachloride 03/30/185.1 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1,1-Trichloroethane 03/30/185.2 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1-Dichloropropene 03/30/184.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDBenzene 03/30/185.6 252.5 ug/Kg 430680SW8260B 16:45 BP

NDTAME 03/30/185.7 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2-Dichloroethane 03/30/185.8 252.5 ug/Kg 430680SW8260B 16:45 BP

NDTrichloroethylene 03/30/184.5 252.5 ug/Kg 430680SW8260B 16:45 BP

NDDibromomethane 03/30/184.6 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2-Dichloropropane 03/30/184.7 252.5 ug/Kg 430680SW8260B 16:45 BP

NDBromodichloromethane 03/30/184.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDcis-1,3-Dichloropropene 03/30/184.0 252.5 ug/Kg 430680SW8260B 16:45 BP

NDToluene 03/30/184.6 252.5 ug/Kg 430680SW8260B 16:45 BP

422Tetrachloroethylene 03/30/184.2 252.5 ug/Kg 430680SW8260B 16:45 BP

NDtrans-1,3-Dichloropropene 03/30/184.1 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1,2-Trichloroethane 03/30/184.6 252.5 ug/Kg 430680SW8260B 16:45 BP

NDDibromochloromethane 03/30/184.7 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,3-Dichloropropane 03/30/184.6 252.5 ug/Kg 430680SW8260B 16:45 BP

Page 30 of 62Total Page Count: 62

Page 87: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:45

14121.001.000

282 S. Montgomery

S16 @ 1'

SoilSample Matrix:

Lab Sample ID: 1803295-013A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/184.5 252.5 ug/Kg 430680SW8260B 16:45 BP

NDChlorobenzene 03/30/184.5 252.5 ug/Kg 430680SW8260B 16:45 BP

NDEthyl Benzene 03/30/184.1 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1,1,2-Tetrachloroethane 03/30/184.8 252.5 ug/Kg 430680SW8260B 16:45 BP

NDm,p-Xylene 03/30/187.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDo-Xylene 03/30/184.3 252.5 ug/Kg 430680SW8260B 16:45 BP

NDStyrene 03/30/184.1 252.5 ug/Kg 430680SW8260B 16:45 BP

NDBromoform 03/30/184.2 252.5 ug/Kg 430680SW8260B 16:45 BP

NDIsopropyl Benzene 03/30/184.0 252.5 ug/Kg 430680SW8260B 16:45 BP

NDn-Propylbenzene 03/30/183.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDBromobenzene 03/30/184.4 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,1,2,2-Tetrachloroethane 03/30/184.8 252.5 ug/Kg 430680SW8260B 16:45 BP

ND2-Chlorotoluene 03/30/184.4 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,3,5-Trimethylbenzene 03/30/183.9 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2,3-Trichloropropane 03/30/184.8 252.5 ug/Kg 430680SW8260B 16:45 BP

ND4-Chlorotoluene 03/30/184.1 252.5 ug/Kg 430680SW8260B 16:45 BP

NDtert-Butylbenzene 03/30/184.1 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2,4-Trimethylbenzene 03/30/183.4 252.5 ug/Kg 430680SW8260B 16:45 BP

NDsec-Butyl Benzene 03/30/183.9 252.5 ug/Kg 430680SW8260B 16:45 BP

NDp-Isopropyltoluene 03/30/183.7 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,3-Dichlorobenzene 03/30/184.2 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,4-Dichlorobenzene 03/30/184.3 252.5 ug/Kg 430680SW8260B 16:45 BP

NDn-Butylbenzene 03/30/183.6 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2-Dichlorobenzene 03/30/184.4 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2-Dibromo-3-Chloropropane 03/30/184.6 252.5 ug/Kg 430680SW8260B 16:45 BP

NDHexachlorobutadiene 03/30/183.4 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2,4-Trichlorobenzene 03/30/183.7 252.5 ug/Kg 430680SW8260B 16:45 BP

NDNaphthalene 03/30/184.2 252.5 ug/Kg 430680SW8260B 16:45 BP

ND1,2,3-Trichlorobenzene 03/30/184.2 252.5 ug/Kg 430680SW8260B 16:45 BP

ND2-Butanone 03/30/185.7 252.5 ug/Kg 430680SW8260B 16:45 BP

99.7(S) Dibromofluoromethane 03/30/18% 430680SW8260B 16:45 BP59.8 - 148

101(S) Toluene-d8 03/30/18% 430680SW8260B 16:45 BP55.2 - 133

119(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 16:45 BP55.8 - 141

Page 31 of 62Total Page Count: 62

Page 88: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:50

14121.001.000

282 S. Montgomery

S16 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-014A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/186.1 505 ug/Kg 430680SW8260B 17:57 BP

NDChloromethane 03/30/189.1 505 ug/Kg 430680SW8260B 17:57 BP

NDVinyl Chloride 03/30/1810 505 ug/Kg 430680SW8260B 17:57 BP

NDBromomethane 03/30/1813 505 ug/Kg 430680SW8260B 17:57 BP

NDChloroethane 03/30/1815 505 ug/Kg 430680SW8260B 17:57 BP

NDTrichlorofluoromethane 03/30/1810 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1-Dichloroethene 03/30/1810 505 ug/Kg 430680SW8260B 17:57 BP

NDFreon 113 03/30/189.4 505 ug/Kg 430680SW8260B 17:57 BP

NDMethylene Chloride 03/30/1836 505 ug/Kg 430680SW8260B 17:57 BP

NDtrans-1,2-Dichloroethene 03/30/1810 505 ug/Kg 430680SW8260B 17:57 BP

NDMTBE 03/30/1812 505 ug/Kg 430680SW8260B 17:57 BP

NDtert-Butanol 03/30/1858 2505 ug/Kg 430680SW8260B 17:57 BP

NDDiisopropyl ether (DIPE) 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1-Dichloroethane 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

NDETBE 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

NDcis-1,2-Dichloroethene 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

ND2,2-Dichloropropane 03/30/189.6 505 ug/Kg 430680SW8260B 17:57 BP

NDBromochloromethane 03/30/1812 505 ug/Kg 430680SW8260B 17:57 BP

NDChloroform 03/30/1812 505 ug/Kg 430680SW8260B 17:57 BP

NDCarbon Tetrachloride 03/30/1810 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1,1-Trichloroethane 03/30/1810 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1-Dichloropropene 03/30/189.9 505 ug/Kg 430680SW8260B 17:57 BP

NDBenzene 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

NDTAME 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2-Dichloroethane 03/30/1812 505 ug/Kg 430680SW8260B 17:57 BP

NDTrichloroethylene 03/30/189.0 505 ug/Kg 430680SW8260B 17:57 BP

NDDibromomethane 03/30/189.2 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2-Dichloropropane 03/30/189.3 505 ug/Kg 430680SW8260B 17:57 BP

NDBromodichloromethane 03/30/189.8 505 ug/Kg 430680SW8260B 17:57 BP

NDcis-1,3-Dichloropropene 03/30/188.0 505 ug/Kg 430680SW8260B 17:57 BP

NDToluene 03/30/189.1 505 ug/Kg 430680SW8260B 17:57 BP

E1710Tetrachloroethylene 03/30/188.3 505 ug/Kg 430680SW8260B 17:57 BP

NDtrans-1,3-Dichloropropene 03/30/188.2 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1,2-Trichloroethane 03/30/189.2 505 ug/Kg 430680SW8260B 17:57 BP

NDDibromochloromethane 03/30/189.4 505 ug/Kg 430680SW8260B 17:57 BP

ND1,3-Dichloropropane 03/30/189.2 505 ug/Kg 430680SW8260B 17:57 BP

Page 32 of 62Total Page Count: 62

Page 89: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:50

14121.001.000

282 S. Montgomery

S16 @ 5'

SoilSample Matrix:

Lab Sample ID: 1803295-014A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/189.0 505 ug/Kg 430680SW8260B 17:57 BP

NDChlorobenzene 03/30/189.1 505 ug/Kg 430680SW8260B 17:57 BP

NDEthyl Benzene 03/30/188.3 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1,1,2-Tetrachloroethane 03/30/189.7 505 ug/Kg 430680SW8260B 17:57 BP

NDm,p-Xylene 03/30/1816 505 ug/Kg 430680SW8260B 17:57 BP

NDo-Xylene 03/30/188.6 505 ug/Kg 430680SW8260B 17:57 BP

NDStyrene 03/30/188.2 505 ug/Kg 430680SW8260B 17:57 BP

NDBromoform 03/30/188.4 505 ug/Kg 430680SW8260B 17:57 BP

NDIsopropyl Benzene 03/30/188.1 505 ug/Kg 430680SW8260B 17:57 BP

NDn-Propylbenzene 03/30/187.8 505 ug/Kg 430680SW8260B 17:57 BP

NDBromobenzene 03/30/188.8 505 ug/Kg 430680SW8260B 17:57 BP

ND1,1,2,2-Tetrachloroethane 03/30/189.6 505 ug/Kg 430680SW8260B 17:57 BP

ND2-Chlorotoluene 03/30/188.8 505 ug/Kg 430680SW8260B 17:57 BP

ND1,3,5-Trimethylbenzene 03/30/187.9 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2,3-Trichloropropane 03/30/189.5 505 ug/Kg 430680SW8260B 17:57 BP

ND4-Chlorotoluene 03/30/188.2 505 ug/Kg 430680SW8260B 17:57 BP

NDtert-Butylbenzene 03/30/188.1 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2,4-Trimethylbenzene 03/30/186.8 505 ug/Kg 430680SW8260B 17:57 BP

NDsec-Butyl Benzene 03/30/187.8 505 ug/Kg 430680SW8260B 17:57 BP

NDp-Isopropyltoluene 03/30/187.3 505 ug/Kg 430680SW8260B 17:57 BP

ND1,3-Dichlorobenzene 03/30/188.3 505 ug/Kg 430680SW8260B 17:57 BP

ND1,4-Dichlorobenzene 03/30/188.6 505 ug/Kg 430680SW8260B 17:57 BP

NDn-Butylbenzene 03/30/187.3 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2-Dichlorobenzene 03/30/188.9 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2-Dibromo-3-Chloropropane 03/30/189.2 505 ug/Kg 430680SW8260B 17:57 BP

NDHexachlorobutadiene 03/30/186.8 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2,4-Trichlorobenzene 03/30/187.4 505 ug/Kg 430680SW8260B 17:57 BP

NDNaphthalene 03/30/188.4 505 ug/Kg 430680SW8260B 17:57 BP

ND1,2,3-Trichlorobenzene 03/30/188.3 505 ug/Kg 430680SW8260B 17:57 BP

ND2-Butanone 03/30/1811 505 ug/Kg 430680SW8260B 17:57 BP

106(S) Dibromofluoromethane 03/30/18% 430680SW8260B 17:57 BP59.8 - 148

105(S) Toluene-d8 03/30/18% 430680SW8260B 17:57 BP55.2 - 133

122(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 17:57 BP55.8 - 141

NOTE: E - Estimated value. The amount exceeds the calibration range but within linear working range of the instrument.

Page 33 of 62Total Page Count: 62

Page 90: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:55

14121.001.000

282 S. Montgomery

S16 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-015A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/18120 1000100 ug/Kg 430680SW8260B 19:09 BP

NDChloromethane 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

NDVinyl Chloride 03/30/18200 1000100 ug/Kg 430680SW8260B 19:09 BP

NDBromomethane 03/30/18270 1000100 ug/Kg 430680SW8260B 19:09 BP

NDChloroethane 03/30/18300 1000100 ug/Kg 430680SW8260B 19:09 BP

NDTrichlorofluoromethane 03/30/18210 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1-Dichloroethene 03/30/18200 1000100 ug/Kg 430680SW8260B 19:09 BP

NDFreon 113 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

NDMethylene Chloride 03/30/18710 1000100 ug/Kg 430680SW8260B 19:09 BP

NDtrans-1,2-Dichloroethene 03/30/18210 1000100 ug/Kg 430680SW8260B 19:09 BP

NDMTBE 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

NDtert-Butanol 03/30/181200 5000100 ug/Kg 430680SW8260B 19:09 BP

NDDiisopropyl ether (DIPE) 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1-Dichloroethane 03/30/18220 1000100 ug/Kg 430680SW8260B 19:09 BP

NDETBE 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

NDcis-1,2-Dichloroethene 03/30/18220 1000100 ug/Kg 430680SW8260B 19:09 BP

ND2,2-Dichloropropane 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

NDBromochloromethane 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

NDChloroform 03/30/18240 1000100 ug/Kg 430680SW8260B 19:09 BP

NDCarbon Tetrachloride 03/30/18210 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1,1-Trichloroethane 03/30/18210 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1-Dichloropropene 03/30/18200 1000100 ug/Kg 430680SW8260B 19:09 BP

NDBenzene 03/30/18220 1000100 ug/Kg 430680SW8260B 19:09 BP

NDTAME 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2-Dichloroethane 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

NDTrichloroethylene 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

NDDibromomethane 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2-Dichloropropane 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

NDBromodichloromethane 03/30/18200 1000100 ug/Kg 430680SW8260B 19:09 BP

NDcis-1,3-Dichloropropene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

NDToluene 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

6810Tetrachloroethylene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

NDtrans-1,3-Dichloropropene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1,2-Trichloroethane 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

NDDibromochloromethane 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,3-Dichloropropane 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

Page 34 of 62Total Page Count: 62

Page 91: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:55

14121.001.000

282 S. Montgomery

S16 @ 10'

SoilSample Matrix:

Lab Sample ID: 1803295-015A

SDG:

Prep Batch ID: 1103907

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

NDChlorobenzene 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

NDEthyl Benzene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1,1,2-Tetrachloroethane 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

NDm,p-Xylene 03/30/18320 1000100 ug/Kg 430680SW8260B 19:09 BP

NDo-Xylene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

NDStyrene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

NDBromoform 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

NDIsopropyl Benzene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

NDn-Propylbenzene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

NDBromobenzene 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,1,2,2-Tetrachloroethane 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

ND2-Chlorotoluene 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,3,5-Trimethylbenzene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2,3-Trichloropropane 03/30/18190 1000100 ug/Kg 430680SW8260B 19:09 BP

ND4-Chlorotoluene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

NDtert-Butylbenzene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2,4-Trimethylbenzene 03/30/18140 1000100 ug/Kg 430680SW8260B 19:09 BP

NDsec-Butyl Benzene 03/30/18160 1000100 ug/Kg 430680SW8260B 19:09 BP

NDp-Isopropyltoluene 03/30/18150 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,3-Dichlorobenzene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,4-Dichlorobenzene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

NDn-Butylbenzene 03/30/18150 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2-Dichlorobenzene 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2-Dibromo-3-Chloropropane 03/30/18180 1000100 ug/Kg 430680SW8260B 19:09 BP

NDHexachlorobutadiene 03/30/18140 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2,4-Trichlorobenzene 03/30/18150 1000100 ug/Kg 430680SW8260B 19:09 BP

NDNaphthalene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

ND1,2,3-Trichlorobenzene 03/30/18170 1000100 ug/Kg 430680SW8260B 19:09 BP

ND2-Butanone 03/30/18230 1000100 ug/Kg 430680SW8260B 19:09 BP

88.9(S) Dibromofluoromethane 03/30/18% 430680SW8260B 19:09 BP59.8 - 148

91.1(S) Toluene-d8 03/30/18% 430680SW8260B 19:09 BP55.2 - 133

106(S) 4-Bromofluorobenzene 03/30/18% 430680SW8260B 19:09 BP55.8 - 141

NOTE: Methanol Extracted

Page 35 of 62Total Page Count: 62

Page 92: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:15

14121.001.000

282 S. Montgomery

GW 6

GroundwaterSample Matrix:

Lab Sample ID: 1803295-016A

SDG:

Prep Batch ID: 1103894

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/180.29 0.561.11 ug/L 430669SW8260B 22:40 BP

NDChloromethane 03/30/180.19 0.561.11 ug/L 430669SW8260B 22:40 BP

NDVinyl Chloride 03/30/180.23 0.561.11 ug/L 430669SW8260B 22:40 BP

NDBromomethane 03/30/180.24 0.561.11 ug/L 430669SW8260B 22:40 BP

NDChloroethane 03/30/180.13 0.561.11 ug/L 430669SW8260B 22:40 BP

NDTrichlorofluoromethane 03/30/180.21 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1-Dichloroethene 03/30/180.16 0.561.11 ug/L 430669SW8260B 22:40 BP

NDFreon 113 03/30/180.38 0.561.11 ug/L 430669SW8260B 22:40 BP

NDMethylene Chloride 03/30/180.14 0.561.11 ug/L 430669SW8260B 22:40 BP

NDtrans-1,2-Dichloroethene 03/30/180.18 0.561.11 ug/L 430669SW8260B 22:40 BP

NDMTBE 03/30/180.085 0.561.11 ug/L 430669SW8260B 22:40 BP

NDtert-Butanol 03/30/188.2 111.11 ug/L 430669SW8260B 22:40 BP

NDDiisopropyl ether (DIPE) 03/30/180.13 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1-Dichloroethane 03/30/180.14 0.561.11 ug/L 430669SW8260B 22:40 BP

NDETBE 03/30/180.071 0.561.11 ug/L 430669SW8260B 22:40 BP

NDcis-1,2-Dichloroethene 03/30/180.17 0.561.11 ug/L 430669SW8260B 22:40 BP

ND2,2-Dichloropropane 03/30/180.10 0.561.11 ug/L 430669SW8260B 22:40 BP

NDBromochloromethane 03/30/180.17 0.561.11 ug/L 430669SW8260B 22:40 BP

NDChloroform 03/30/180.14 0.561.11 ug/L 430669SW8260B 22:40 BP

NDCarbon Tetrachloride 03/30/180.18 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1,1-Trichloroethane 03/30/180.18 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1-Dichloropropene 03/30/180.21 0.561.11 ug/L 430669SW8260B 22:40 BP

NDBenzene 03/30/180.17 0.561.11 ug/L 430669SW8260B 22:40 BP

NDTAME 03/30/180.080 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,2-Dichloroethane 03/30/180.12 0.561.11 ug/L 430669SW8260B 22:40 BP

1.3Trichloroethylene 03/30/180.16 0.561.11 ug/L 430669SW8260B 22:40 BP

NDDibromomethane 03/30/180.12 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,2-Dichloropropane 03/30/180.099 0.561.11 ug/L 430669SW8260B 22:40 BP

NDBromodichloromethane 03/30/180.084 0.561.11 ug/L 430669SW8260B 22:40 BP

NDcis-1,3-Dichloropropene 03/30/180.087 0.561.11 ug/L 430669SW8260B 22:40 BP

NDToluene 03/30/180.16 0.561.11 ug/L 430669SW8260B 22:40 BP

45Tetrachloroethylene 03/30/180.26 0.561.11 ug/L 430669SW8260B 22:40 BP

NDtrans-1,3-Dichloropropene 03/30/180.24 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1,2-Trichloroethane 03/30/180.084 0.561.11 ug/L 430669SW8260B 22:40 BP

NDDibromochloromethane 03/30/180.20 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,3-Dichloropropane 03/30/180.24 0.561.11 ug/L 430669SW8260B 22:40 BP

Page 36 of 62Total Page Count: 62

Page 93: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:15

14121.001.000

282 S. Montgomery

GW 6

GroundwaterSample Matrix:

Lab Sample ID: 1803295-016A

SDG:

Prep Batch ID: 1103894

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/180.088 0.561.11 ug/L 430669SW8260B 22:40 BP

NDChlorobenzene 03/30/180.18 0.561.11 ug/L 430669SW8260B 22:40 BP

NDEthyl Benzene 03/30/180.22 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1,1,2-Tetrachloroethane 03/30/180.097 0.561.11 ug/L 430669SW8260B 22:40 BP

NDm,p-Xylene 03/30/180.44 1.11.11 ug/L 430669SW8260B 22:40 BP

NDo-Xylene 03/30/180.17 0.561.11 ug/L 430669SW8260B 22:40 BP

NDStyrene 03/30/180.12 0.561.11 ug/L 430669SW8260B 22:40 BP

NDBromoform 03/30/180.084 0.561.11 ug/L 430669SW8260B 22:40 BP

NDIsopropyl Benzene 03/30/180.24 0.561.11 ug/L 430669SW8260B 22:40 BP

NDn-Propylbenzene 03/30/180.33 0.561.11 ug/L 430669SW8260B 22:40 BP

NDBromobenzene 03/30/180.17 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,1,2,2-Tetrachloroethane 03/30/180.088 0.561.11 ug/L 430669SW8260B 22:40 BP

ND2-Chlorotoluene 03/30/180.28 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,3,5-Trimethylbenzene 03/30/180.27 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,2,3-Trichloropropane 03/30/180.16 0.561.11 ug/L 430669SW8260B 22:40 BP

ND4-Chlorotoluene 03/30/180.24 0.561.11 ug/L 430669SW8260B 22:40 BP

NDtert-Butylbenzene 03/30/180.29 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,2,4-Trimethylbenzene 03/30/180.26 0.561.11 ug/L 430669SW8260B 22:40 BP

NDsec-Butyl Benzene 03/30/180.33 0.561.11 ug/L 430669SW8260B 22:40 BP

NDp-Isopropyltoluene 03/30/180.30 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,3-Dichlorobenzene 03/30/180.19 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,4-Dichlorobenzene 03/30/180.19 0.561.11 ug/L 430669SW8260B 22:40 BP

NDn-Butylbenzene 03/30/180.30 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,2-Dichlorobenzene 03/30/180.18 0.561.11 ug/L 430669SW8260B 22:40 BP

ND1,2-Dibromo-3-Chloropropane 03/30/180.84 2.21.11 ug/L 430669SW8260B 22:40 BP

NDHexachlorobutadiene 03/30/180.68 2.21.11 ug/L 430669SW8260B 22:40 BP

ND1,2,4-Trichlorobenzene 03/30/181.0 2.21.11 ug/L 430669SW8260B 22:40 BP

NDNaphthalene 03/30/181.3 2.21.11 ug/L 430669SW8260B 22:40 BP

ND1,2,3-Trichlorobenzene 03/30/181.3 2.21.11 ug/L 430669SW8260B 22:40 BP

123(S) Dibromofluoromethane 03/30/18% 430669SW8260B 22:40 BP61.2 - 131

96.6(S) Toluene-d8 03/30/18% 430669SW8260B 22:40 BP75.1 - 127

97.2(S) 4-Bromofluorobenzene 03/30/18% 430669SW8260B 22:40 BP64.1 - 120

Page 37 of 62Total Page Count: 62

Page 94: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 15:20

14121.001.000

282 S. Montgomery

GW 7

GroundwaterSample Matrix:

Lab Sample ID: 1803295-017A

SDG:

Prep Batch ID: 1103894

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/1811 2142 ug/L 430669SW8260B 17:15 BP

NDChloromethane 03/30/187.0 2142 ug/L 430669SW8260B 17:15 BP

NDVinyl Chloride 03/30/188.7 2142 ug/L 430669SW8260B 17:15 BP

NDBromomethane 03/30/188.9 2142 ug/L 430669SW8260B 17:15 BP

NDChloroethane 03/30/184.8 2142 ug/L 430669SW8260B 17:15 BP

NDTrichlorofluoromethane 03/30/187.8 2142 ug/L 430669SW8260B 17:15 BP

ND1,1-Dichloroethene 03/30/186.0 2142 ug/L 430669SW8260B 17:15 BP

NDFreon 113 03/30/1814 2142 ug/L 430669SW8260B 17:15 BP

NDMethylene Chloride 03/30/185.5 2142 ug/L 430669SW8260B 17:15 BP

NDtrans-1,2-Dichloroethene 03/30/186.8 2142 ug/L 430669SW8260B 17:15 BP

NDMTBE 03/30/183.2 2142 ug/L 430669SW8260B 17:15 BP

NDtert-Butanol 03/30/18310 42042 ug/L 430669SW8260B 17:15 BP

NDDiisopropyl ether (DIPE) 03/30/185.1 2142 ug/L 430669SW8260B 17:15 BP

ND1,1-Dichloroethane 03/30/185.1 2142 ug/L 430669SW8260B 17:15 BP

NDETBE 03/30/182.7 2142 ug/L 430669SW8260B 17:15 BP

NDcis-1,2-Dichloroethene 03/30/186.3 2142 ug/L 430669SW8260B 17:15 BP

ND2,2-Dichloropropane 03/30/183.9 2142 ug/L 430669SW8260B 17:15 BP

NDBromochloromethane 03/30/186.3 2142 ug/L 430669SW8260B 17:15 BP

NDChloroform 03/30/185.1 2142 ug/L 430669SW8260B 17:15 BP

NDCarbon Tetrachloride 03/30/186.6 2142 ug/L 430669SW8260B 17:15 BP

ND1,1,1-Trichloroethane 03/30/186.8 2142 ug/L 430669SW8260B 17:15 BP

ND1,1-Dichloropropene 03/30/187.8 2142 ug/L 430669SW8260B 17:15 BP

NDBenzene 03/30/186.6 2142 ug/L 430669SW8260B 17:15 BP

NDTAME 03/30/183.0 2142 ug/L 430669SW8260B 17:15 BP

ND1,2-Dichloroethane 03/30/184.6 2142 ug/L 430669SW8260B 17:15 BP

25Trichloroethylene 03/30/186.1 2142 ug/L 430669SW8260B 17:15 BP

NDDibromomethane 03/30/184.5 2142 ug/L 430669SW8260B 17:15 BP

ND1,2-Dichloropropane 03/30/183.7 2142 ug/L 430669SW8260B 17:15 BP

NDBromodichloromethane 03/30/183.2 2142 ug/L 430669SW8260B 17:15 BP

NDcis-1,3-Dichloropropene 03/30/183.3 2142 ug/L 430669SW8260B 17:15 BP

NDToluene 03/30/186.0 2142 ug/L 430669SW8260B 17:15 BP

1300Tetrachloroethylene 03/30/1810. 2142 ug/L 430669SW8260B 17:15 BP

NDtrans-1,3-Dichloropropene 03/30/189.1 2142 ug/L 430669SW8260B 17:15 BP

ND1,1,2-Trichloroethane 03/30/183.2 2142 ug/L 430669SW8260B 17:15 BP

NDDibromochloromethane 03/30/187.6 2142 ug/L 430669SW8260B 17:15 BP

ND1,3-Dichloropropane 03/30/189.1 2142 ug/L 430669SW8260B 17:15 BP

Page 38 of 62Total Page Count: 62

Page 95: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 15:20

14121.001.000

282 S. Montgomery

GW 7

GroundwaterSample Matrix:

Lab Sample ID: 1803295-017A

SDG:

Prep Batch ID: 1103894

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/183.3 2142 ug/L 430669SW8260B 17:15 BP

NDChlorobenzene 03/30/186.8 2142 ug/L 430669SW8260B 17:15 BP

NDEthyl Benzene 03/30/188.2 2142 ug/L 430669SW8260B 17:15 BP

ND1,1,1,2-Tetrachloroethane 03/30/183.7 2142 ug/L 430669SW8260B 17:15 BP

NDm,p-Xylene 03/30/1817 4242 ug/L 430669SW8260B 17:15 BP

NDo-Xylene 03/30/186.5 2142 ug/L 430669SW8260B 17:15 BP

NDStyrene 03/30/184.6 2142 ug/L 430669SW8260B 17:15 BP

NDBromoform 03/30/183.2 2142 ug/L 430669SW8260B 17:15 BP

NDIsopropyl Benzene 03/30/189.1 2142 ug/L 430669SW8260B 17:15 BP

NDn-Propylbenzene 03/30/1812 2142 ug/L 430669SW8260B 17:15 BP

NDBromobenzene 03/30/186.3 2142 ug/L 430669SW8260B 17:15 BP

ND1,1,2,2-Tetrachloroethane 03/30/183.3 2142 ug/L 430669SW8260B 17:15 BP

ND2-Chlorotoluene 03/30/1811 2142 ug/L 430669SW8260B 17:15 BP

ND1,3,5-Trimethylbenzene 03/30/1810 2142 ug/L 430669SW8260B 17:15 BP

ND1,2,3-Trichloropropane 03/30/186.1 2142 ug/L 430669SW8260B 17:15 BP

ND4-Chlorotoluene 03/30/189.0 2142 ug/L 430669SW8260B 17:15 BP

NDtert-Butylbenzene 03/30/1811 2142 ug/L 430669SW8260B 17:15 BP

ND1,2,4-Trimethylbenzene 03/30/189.7 2142 ug/L 430669SW8260B 17:15 BP

NDsec-Butyl Benzene 03/30/1812 2142 ug/L 430669SW8260B 17:15 BP

NDp-Isopropyltoluene 03/30/1811 2142 ug/L 430669SW8260B 17:15 BP

ND1,3-Dichlorobenzene 03/30/187.0 2142 ug/L 430669SW8260B 17:15 BP

ND1,4-Dichlorobenzene 03/30/187.4 2142 ug/L 430669SW8260B 17:15 BP

NDn-Butylbenzene 03/30/1811 2142 ug/L 430669SW8260B 17:15 BP

ND1,2-Dichlorobenzene 03/30/186.7 2142 ug/L 430669SW8260B 17:15 BP

ND1,2-Dibromo-3-Chloropropane 03/30/1832 8442 ug/L 430669SW8260B 17:15 BP

NDHexachlorobutadiene 03/30/1826 8442 ug/L 430669SW8260B 17:15 BP

ND1,2,4-Trichlorobenzene 03/30/1839 8442 ug/L 430669SW8260B 17:15 BP

NDNaphthalene 03/30/1851 8442 ug/L 430669SW8260B 17:15 BP

ND1,2,3-Trichlorobenzene 03/30/1851 8442 ug/L 430669SW8260B 17:15 BP

S133(S) Dibromofluoromethane 03/30/18% 430669SW8260B 17:15 BP61.2 - 131

101(S) Toluene-d8 03/30/18% 430669SW8260B 17:15 BP75.1 - 127

101(S) 4-Bromofluorobenzene 03/30/18% 430669SW8260B 17:15 BP64.1 - 120

NOTE: S-Surrogate recovery out of limit-high bias. Data was acceptable as no associated target analytes were observed in the sample. No corrective action required.

Page 39 of 62Total Page Count: 62

Page 96: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:15

14121.001.000

282 S. Montgomery

GW 8

GroundwaterSample Matrix:

Lab Sample ID: 1803295-018A

SDG:

Prep Batch ID: 1103894

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/180.26 0.501 ug/L 430669SW8260B 16:15 BP

NDChloromethane 03/30/180.17 0.501 ug/L 430669SW8260B 16:15 BP

NDVinyl Chloride 03/30/180.21 0.501 ug/L 430669SW8260B 16:15 BP

NDBromomethane 03/30/180.21 0.501 ug/L 430669SW8260B 16:15 BP

NDChloroethane 03/30/180.11 0.501 ug/L 430669SW8260B 16:15 BP

NDTrichlorofluoromethane 03/30/180.19 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1-Dichloroethene 03/30/180.14 0.501 ug/L 430669SW8260B 16:15 BP

NDFreon 113 03/30/180.34 0.501 ug/L 430669SW8260B 16:15 BP

NDMethylene Chloride 03/30/180.13 0.501 ug/L 430669SW8260B 16:15 BP

NDtrans-1,2-Dichloroethene 03/30/180.16 0.501 ug/L 430669SW8260B 16:15 BP

NDMTBE 03/30/180.077 0.501 ug/L 430669SW8260B 16:15 BP

NDtert-Butanol 03/30/187.4 101 ug/L 430669SW8260B 16:15 BP

NDDiisopropyl ether (DIPE) 03/30/180.12 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1-Dichloroethane 03/30/180.12 0.501 ug/L 430669SW8260B 16:15 BP

NDETBE 03/30/180.064 0.501 ug/L 430669SW8260B 16:15 BP

NDcis-1,2-Dichloroethene 03/30/180.15 0.501 ug/L 430669SW8260B 16:15 BP

ND2,2-Dichloropropane 03/30/180.094 0.501 ug/L 430669SW8260B 16:15 BP

NDBromochloromethane 03/30/180.15 0.501 ug/L 430669SW8260B 16:15 BP

NDChloroform 03/30/180.12 0.501 ug/L 430669SW8260B 16:15 BP

NDCarbon Tetrachloride 03/30/180.16 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1,1-Trichloroethane 03/30/180.16 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1-Dichloropropene 03/30/180.19 0.501 ug/L 430669SW8260B 16:15 BP

NDBenzene 03/30/180.16 0.501 ug/L 430669SW8260B 16:15 BP

NDTAME 03/30/180.072 0.501 ug/L 430669SW8260B 16:15 BP

ND1,2-Dichloroethane 03/30/180.11 0.501 ug/L 430669SW8260B 16:15 BP

NDTrichloroethylene 03/30/180.15 0.501 ug/L 430669SW8260B 16:15 BP

NDDibromomethane 03/30/180.11 0.501 ug/L 430669SW8260B 16:15 BP

ND1,2-Dichloropropane 03/30/180.089 0.501 ug/L 430669SW8260B 16:15 BP

NDBromodichloromethane 03/30/180.076 0.501 ug/L 430669SW8260B 16:15 BP

NDcis-1,3-Dichloropropene 03/30/180.078 0.501 ug/L 430669SW8260B 16:15 BP

NDToluene 03/30/180.14 0.501 ug/L 430669SW8260B 16:15 BP

NDTetrachloroethylene 03/30/180.24 0.501 ug/L 430669SW8260B 16:15 BP

NDtrans-1,3-Dichloropropene 03/30/180.22 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1,2-Trichloroethane 03/30/180.076 0.501 ug/L 430669SW8260B 16:15 BP

NDDibromochloromethane 03/30/180.18 0.501 ug/L 430669SW8260B 16:15 BP

ND1,3-Dichloropropane 03/30/180.22 0.501 ug/L 430669SW8260B 16:15 BP

Page 40 of 62Total Page Count: 62

Page 97: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:15

14121.001.000

282 S. Montgomery

GW 8

GroundwaterSample Matrix:

Lab Sample ID: 1803295-018A

SDG:

Prep Batch ID: 1103894

Prep Batch Date/Time: 3/30/18 10:43:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/180.079 0.501 ug/L 430669SW8260B 16:15 BP

NDChlorobenzene 03/30/180.16 0.501 ug/L 430669SW8260B 16:15 BP

NDEthyl Benzene 03/30/180.20 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1,1,2-Tetrachloroethane 03/30/180.087 0.501 ug/L 430669SW8260B 16:15 BP

NDm,p-Xylene 03/30/180.39 1.01 ug/L 430669SW8260B 16:15 BP

NDo-Xylene 03/30/180.15 0.501 ug/L 430669SW8260B 16:15 BP

NDStyrene 03/30/180.11 0.501 ug/L 430669SW8260B 16:15 BP

NDBromoform 03/30/180.076 0.501 ug/L 430669SW8260B 16:15 BP

NDIsopropyl Benzene 03/30/180.22 0.501 ug/L 430669SW8260B 16:15 BP

NDn-Propylbenzene 03/30/180.30 0.501 ug/L 430669SW8260B 16:15 BP

NDBromobenzene 03/30/180.15 0.501 ug/L 430669SW8260B 16:15 BP

ND1,1,2,2-Tetrachloroethane 03/30/180.079 0.501 ug/L 430669SW8260B 16:15 BP

ND2-Chlorotoluene 03/30/180.25 0.501 ug/L 430669SW8260B 16:15 BP

ND1,3,5-Trimethylbenzene 03/30/180.24 0.501 ug/L 430669SW8260B 16:15 BP

ND1,2,3-Trichloropropane 03/30/180.15 0.501 ug/L 430669SW8260B 16:15 BP

ND4-Chlorotoluene 03/30/180.22 0.501 ug/L 430669SW8260B 16:15 BP

NDtert-Butylbenzene 03/30/180.26 0.501 ug/L 430669SW8260B 16:15 BP

ND1,2,4-Trimethylbenzene 03/30/180.23 0.501 ug/L 430669SW8260B 16:15 BP

NDsec-Butyl Benzene 03/30/180.30 0.501 ug/L 430669SW8260B 16:15 BP

NDp-Isopropyltoluene 03/30/180.27 0.501 ug/L 430669SW8260B 16:15 BP

ND1,3-Dichlorobenzene 03/30/180.17 0.501 ug/L 430669SW8260B 16:15 BP

ND1,4-Dichlorobenzene 03/30/180.18 0.501 ug/L 430669SW8260B 16:15 BP

NDn-Butylbenzene 03/30/180.27 0.501 ug/L 430669SW8260B 16:15 BP

ND1,2-Dichlorobenzene 03/30/180.16 0.501 ug/L 430669SW8260B 16:15 BP

ND1,2-Dibromo-3-Chloropropane 03/30/180.76 2.01 ug/L 430669SW8260B 16:15 BP

NDHexachlorobutadiene 03/30/180.62 2.01 ug/L 430669SW8260B 16:15 BP

ND1,2,4-Trichlorobenzene 03/30/180.93 2.01 ug/L 430669SW8260B 16:15 BP

NDNaphthalene 03/30/181.2 2.01 ug/L 430669SW8260B 16:15 BP

ND1,2,3-Trichlorobenzene 03/30/181.2 2.01 ug/L 430669SW8260B 16:15 BP

129(S) Dibromofluoromethane 03/30/18% 430669SW8260B 16:15 BP61.2 - 131

102(S) Toluene-d8 03/30/18% 430669SW8260B 16:15 BP75.1 - 127

95.3(S) 4-Bromofluorobenzene 03/30/18% 430669SW8260B 16:15 BP64.1 - 120

Page 41 of 62Total Page Count: 62

Page 98: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:50

14121.001.000

282 S. Montgomery

GW 16

GroundwaterSample Matrix:

Lab Sample ID: 1803295-019A

SDG:

Prep Batch ID: 1103908

Prep Batch Date/Time: 4/2/18 9:13:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/02/185.5 1121 ug/L 430682SW8260B 13:42 BP

NDChloromethane 04/02/183.5 1121 ug/L 430682SW8260B 13:42 BP

NDVinyl Chloride 04/02/184.4 1121 ug/L 430682SW8260B 13:42 BP

NDBromomethane 04/02/184.5 1121 ug/L 430682SW8260B 13:42 BP

NDChloroethane 04/02/182.4 1121 ug/L 430682SW8260B 13:42 BP

NDTrichlorofluoromethane 04/02/183.9 1121 ug/L 430682SW8260B 13:42 BP

ND1,1-Dichloroethene 04/02/183.0 1121 ug/L 430682SW8260B 13:42 BP

NDFreon 113 04/02/187.2 1121 ug/L 430682SW8260B 13:42 BP

NDMethylene Chloride 04/02/182.7 1121 ug/L 430682SW8260B 13:42 BP

NDtrans-1,2-Dichloroethene 04/02/183.4 1121 ug/L 430682SW8260B 13:42 BP

NDMTBE 04/02/181.6 1121 ug/L 430682SW8260B 13:42 BP

NDtert-Butanol 04/02/18150 21021 ug/L 430682SW8260B 13:42 BP

NDDiisopropyl ether (DIPE) 04/02/182.5 1121 ug/L 430682SW8260B 13:42 BP

ND1,1-Dichloroethane 04/02/182.6 1121 ug/L 430682SW8260B 13:42 BP

NDETBE 04/02/181.3 1121 ug/L 430682SW8260B 13:42 BP

NDcis-1,2-Dichloroethene 04/02/183.2 1121 ug/L 430682SW8260B 13:42 BP

ND2,2-Dichloropropane 04/02/182.0 1121 ug/L 430682SW8260B 13:42 BP

NDBromochloromethane 04/02/183.1 1121 ug/L 430682SW8260B 13:42 BP

NDChloroform 04/02/182.6 1121 ug/L 430682SW8260B 13:42 BP

NDCarbon Tetrachloride 04/02/183.3 1121 ug/L 430682SW8260B 13:42 BP

ND1,1,1-Trichloroethane 04/02/183.4 1121 ug/L 430682SW8260B 13:42 BP

ND1,1-Dichloropropene 04/02/183.9 1121 ug/L 430682SW8260B 13:42 BP

NDBenzene 04/02/183.3 1121 ug/L 430682SW8260B 13:42 BP

NDTAME 04/02/181.5 1121 ug/L 430682SW8260B 13:42 BP

ND1,2-Dichloroethane 04/02/182.3 1121 ug/L 430682SW8260B 13:42 BP

NDTrichloroethylene 04/02/183.1 1121 ug/L 430682SW8260B 13:42 BP

NDDibromomethane 04/02/182.2 1121 ug/L 430682SW8260B 13:42 BP

ND1,2-Dichloropropane 04/02/181.9 1121 ug/L 430682SW8260B 13:42 BP

NDBromodichloromethane 04/02/181.6 1121 ug/L 430682SW8260B 13:42 BP

NDcis-1,3-Dichloropropene 04/02/181.6 1121 ug/L 430682SW8260B 13:42 BP

NDToluene 04/02/183.0 1121 ug/L 430682SW8260B 13:42 BP

340Tetrachloroethylene 04/02/185.0 1121 ug/L 430682SW8260B 13:42 BP

NDtrans-1,3-Dichloropropene 04/02/184.5 1121 ug/L 430682SW8260B 13:42 BP

ND1,1,2-Trichloroethane 04/02/181.6 1121 ug/L 430682SW8260B 13:42 BP

NDDibromochloromethane 04/02/183.8 1121 ug/L 430682SW8260B 13:42 BP

ND1,3-Dichloropropane 04/02/184.5 1121 ug/L 430682SW8260B 13:42 BP

Page 42 of 62Total Page Count: 62

Page 99: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/02/18

Date/Time Received: 03/28/18, 6:00 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/28/18 / 12:50

14121.001.000

282 S. Montgomery

GW 16

GroundwaterSample Matrix:

Lab Sample ID: 1803295-019A

SDG:

Prep Batch ID: 1103908

Prep Batch Date/Time: 4/2/18 9:13:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/02/181.7 1121 ug/L 430682SW8260B 13:42 BP

NDChlorobenzene 04/02/183.4 1121 ug/L 430682SW8260B 13:42 BP

NDEthyl Benzene 04/02/184.1 1121 ug/L 430682SW8260B 13:42 BP

ND1,1,1,2-Tetrachloroethane 04/02/181.8 1121 ug/L 430682SW8260B 13:42 BP

NDm,p-Xylene 04/02/188.3 2121 ug/L 430682SW8260B 13:42 BP

NDo-Xylene 04/02/183.2 1121 ug/L 430682SW8260B 13:42 BP

NDStyrene 04/02/182.3 1121 ug/L 430682SW8260B 13:42 BP

NDBromoform 04/02/181.6 1121 ug/L 430682SW8260B 13:42 BP

NDIsopropyl Benzene 04/02/184.6 1121 ug/L 430682SW8260B 13:42 BP

NDn-Propylbenzene 04/02/186.2 1121 ug/L 430682SW8260B 13:42 BP

NDBromobenzene 04/02/183.1 1121 ug/L 430682SW8260B 13:42 BP

ND1,1,2,2-Tetrachloroethane 04/02/181.7 1121 ug/L 430682SW8260B 13:42 BP

ND2-Chlorotoluene 04/02/185.3 1121 ug/L 430682SW8260B 13:42 BP

ND1,3,5-Trimethylbenzene 04/02/185.1 1121 ug/L 430682SW8260B 13:42 BP

ND1,2,3-Trichloropropane 04/02/183.0 1121 ug/L 430682SW8260B 13:42 BP

ND4-Chlorotoluene 04/02/184.5 1121 ug/L 430682SW8260B 13:42 BP

NDtert-Butylbenzene 04/02/185.5 1121 ug/L 430682SW8260B 13:42 BP

ND1,2,4-Trimethylbenzene 04/02/184.9 1121 ug/L 430682SW8260B 13:42 BP

NDsec-Butyl Benzene 04/02/186.2 1121 ug/L 430682SW8260B 13:42 BP

NDp-Isopropyltoluene 04/02/185.6 1121 ug/L 430682SW8260B 13:42 BP

ND1,3-Dichlorobenzene 04/02/183.5 1121 ug/L 430682SW8260B 13:42 BP

ND1,4-Dichlorobenzene 04/02/183.7 1121 ug/L 430682SW8260B 13:42 BP

NDn-Butylbenzene 04/02/185.7 1121 ug/L 430682SW8260B 13:42 BP

ND1,2-Dichlorobenzene 04/02/183.4 1121 ug/L 430682SW8260B 13:42 BP

ND1,2-Dibromo-3-Chloropropane 04/02/1816 4221 ug/L 430682SW8260B 13:42 BP

NDHexachlorobutadiene 04/02/1813 4221 ug/L 430682SW8260B 13:42 BP

ND1,2,4-Trichlorobenzene 04/02/1820 4221 ug/L 430682SW8260B 13:42 BP

NDNaphthalene 04/02/1825 4221 ug/L 430682SW8260B 13:42 BP

ND1,2,3-Trichlorobenzene 04/02/1825 4221 ug/L 430682SW8260B 13:42 BP

S144(S) Dibromofluoromethane 04/02/18% 430682SW8260B 13:42 BP61.2 - 131

102(S) Toluene-d8 04/02/18% 430682SW8260B 13:42 BP75.1 - 127

101(S) 4-Bromofluorobenzene 04/02/18% 430682SW8260B 13:42 BP64.1 - 120

NOTE: S-Surrogate recovery out of limit-high bias. Data was acceptable as no associated target analytes were observed in the sample. No corrective action required.

Page 43 of 62Total Page Count: 62

Page 100: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ug/Kg

11038685035

Soil 430643

1803295

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.2 10Dichlorodifluoromethane ND

1.8 10Chloromethane ND

2.0 10Vinyl Chloride ND

2.7 10Bromomethane ND

3.0 10Chloroethane ND

2.1 10Trichlorofluoromethane ND

2.0 101,1-Dichloroethene ND

1.9 10Freon 113 ND

7.1 10Methylene Chloride ND

2.1 10trans-1,2-Dichloroethene ND

2.3 10MTBE ND

12 50tert-Butanol ND

2.3 10Diisopropyl ether (DIPE) ND

2.2 101,1-Dichloroethane ND

2.3 10ETBE ND

2.2 10cis-1,2-Dichloroethene ND

1.9 102,2-Dichloropropane ND

2.3 10Bromochloromethane ND

2.4 10Chloroform ND

2.1 10Carbon Tetrachloride ND

2.1 101,1,1-Trichloroethane ND

2.0 101,1-Dichloropropene ND

2.2 10Benzene ND

2.3 10TAME 5.6

2.3 101,2-Dichloroethane ND

1.8 10Trichloroethylene ND

1.8 10Dibromomethane ND

1.9 101,2-Dichloropropane ND

2.0 10Bromodichloromethane ND

1.6 10cis-1,3-Dichloropropene ND

1.8 10Toluene ND

1.7 10Tetrachloroethylene ND

1.6 10trans-1,3-Dichloropropene ND

1.8 101,1,2-Trichloroethane ND

1.9 10Dibromochloromethane ND

1.8 101,3-Dichloropropane ND

1.8 101,2-Dibromoethane ND

1.8 10Chlorobenzene ND

1.7 10Ethyl Benzene ND

1.9 101,1,1,2-Tetrachloroethane ND

3.2 10m,p-Xylene ND

1.7 10o-Xylene ND

Page 44 of 62Total Page Count: 62

Page 101: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ug/Kg

11038685035

Soil 430643

1803295

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.6 10Styrene ND

1.7 10Bromoform ND

1.6 10Isopropyl Benzene ND

1.6 10n-Propylbenzene ND

1.8 10Bromobenzene ND

1.9 101,1,2,2-Tetrachloroethane ND

1.8 102-Chlorotoluene ND

1.6 101,3,5-Trimethylbenzene ND

1.9 101,2,3-Trichloropropane ND

1.6 104-Chlorotoluene ND

1.6 10tert-Butylbenzene ND

1.4 101,2,4-Trimethylbenzene ND

1.6 10sec-Butyl Benzene ND

1.5 10p-Isopropyltoluene ND

1.7 101,3-Dichlorobenzene ND

1.7 101,4-Dichlorobenzene ND

1.5 10n-Butylbenzene ND

1.8 101,2-Dichlorobenzene ND

1.8 101,2-Dibromo-3-Chloropropane ND

1.4 10Hexachlorobutadiene ND

1.5 101,2,4-Trichlorobenzene 2.0

1.7 10Naphthalene 6.6

1.7 101,2,3-Trichlorobenzene 2.5

1.7 102-Butanone 6.0

(S) Dibromofluoromethane 104

(S) Toluene-d8 105

(S) 4-Bromofluorobenzene 105

Page 45 of 62Total Page Count: 62

Page 102: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/L

11038945030VOC

Water 430669

1803295

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.26 0.50Dichlorodifluoromethane ND

0.17 0.50Chloromethane ND

0.21 0.50Vinyl Chloride ND

0.21 0.50Bromomethane ND

0.11 0.50Chloroethane ND

0.19 0.50Trichlorofluoromethane ND

0.14 0.501,1-Dichloroethene ND

0.34 0.50Freon 113 ND

0.13 0.50Methylene Chloride 0.15

0.16 0.50trans-1,2-Dichloroethene ND

0.077 0.50MTBE ND

7.4 10tert-Butanol ND

0.12 0.50Diisopropyl ether (DIPE) ND

0.12 0.501,1-Dichloroethane ND

0.064 0.50ETBE ND

0.15 0.50cis-1,2-Dichloroethene ND

0.094 0.502,2-Dichloropropane ND

0.15 0.50Bromochloromethane ND

0.12 0.50Chloroform ND

0.16 0.50Carbon Tetrachloride ND

0.16 0.501,1,1-Trichloroethane ND

0.19 0.501,1-Dichloropropene ND

0.16 0.50Benzene ND

0.072 0.50TAME ND

0.11 0.501,2-Dichloroethane ND

0.15 0.50Trichloroethylene ND

0.11 0.50Dibromomethane ND

0.089 0.501,2-Dichloropropane ND

0.076 0.50Bromodichloromethane ND

0.078 0.50cis-1,3-Dichloropropene ND

0.14 0.50Toluene ND

0.24 0.50Tetrachloroethylene ND

0.22 0.50trans-1,3-Dichloropropene ND

0.076 0.501,1,2-Trichloroethane ND

0.18 0.50Dibromochloromethane ND

0.22 0.501,3-Dichloropropane ND

0.079 0.501,2-Dibromoethane ND

0.16 0.50Chlorobenzene ND

0.20 0.50Ethyl Benzene ND

0.087 0.501,1,1,2-Tetrachloroethane ND

0.39 1.0m,p-Xylene ND

0.15 0.50o-Xylene ND

Page 46 of 62Total Page Count: 62

Page 103: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/L

11038945030VOC

Water 430669

1803295

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.11 0.50Styrene ND

0.076 0.50Bromoform ND

0.22 0.50Isopropyl Benzene ND

0.30 0.50n-Propylbenzene ND

0.15 0.50Bromobenzene ND

0.079 0.501,1,2,2-Tetrachloroethane ND

0.25 0.502-Chlorotoluene ND

0.24 0.501,3,5-Trimethylbenzene ND

0.15 0.501,2,3-Trichloropropane ND

0.22 0.504-Chlorotoluene ND

0.26 0.50tert-Butylbenzene ND

0.23 0.501,2,4-Trimethylbenzene ND

0.30 0.50sec-Butyl Benzene ND

0.27 0.50p-Isopropyltoluene ND

0.17 0.501,3-Dichlorobenzene ND

0.18 0.501,4-Dichlorobenzene ND

0.27 0.50n-Butylbenzene ND

0.16 0.501,2-Dichlorobenzene ND

0.76 2.01,2-Dibromo-3-Chloropropane ND

0.62 2.0Hexachlorobutadiene ND

0.93 2.01,2,4-Trichlorobenzene ND

1.2 2.0Naphthalene ND

1.2 2.01,2,3-Trichlorobenzene ND

(S) Dibromofluoromethane 117

(S) Toluene-d8 102

(S) 4-Bromofluorobenzene 93.6

Page 47 of 62Total Page Count: 62

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MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ug/Kg

11039005035

Soil 430674

1803295

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.2 10Dichlorodifluoromethane ND

1.8 10Chloromethane ND

2.0 10Vinyl Chloride ND

2.7 10Bromomethane ND

3.0 10Chloroethane ND

2.1 10Trichlorofluoromethane ND

2.0 101,1-Dichloroethene ND

1.9 10Freon 113 ND

7.1 10Methylene Chloride ND

2.1 10trans-1,2-Dichloroethene ND

2.3 10MTBE ND

12 50tert-Butanol ND

2.3 10Diisopropyl ether (DIPE) ND

2.2 101,1-Dichloroethane ND

2.3 10ETBE ND

2.2 10cis-1,2-Dichloroethene ND

1.9 102,2-Dichloropropane ND

2.3 10Bromochloromethane ND

2.4 10Chloroform ND

2.1 10Carbon Tetrachloride ND

2.1 101,1,1-Trichloroethane ND

2.0 101,1-Dichloropropene ND

2.2 10Benzene ND

2.3 10TAME ND

2.3 101,2-Dichloroethane ND

1.8 10Trichloroethylene ND

1.8 10Dibromomethane ND

1.9 101,2-Dichloropropane ND

2.0 10Bromodichloromethane ND

1.6 10cis-1,3-Dichloropropene ND

1.8 10Toluene ND

1.7 10Tetrachloroethylene ND

1.6 10trans-1,3-Dichloropropene ND

1.8 101,1,2-Trichloroethane ND

1.9 10Dibromochloromethane ND

1.8 101,3-Dichloropropane ND

1.8 101,2-Dibromoethane ND

1.8 10Chlorobenzene ND

1.7 10Ethyl Benzene ND

1.9 101,1,1,2-Tetrachloroethane ND

3.2 10m,p-Xylene ND

1.7 10o-Xylene ND

Page 48 of 62Total Page Count: 62

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MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ug/Kg

11039005035

Soil 430674

1803295

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.6 10Styrene ND

1.7 10Bromoform ND

1.6 10Isopropyl Benzene ND

1.6 10n-Propylbenzene ND

1.8 10Bromobenzene ND

1.9 101,1,2,2-Tetrachloroethane ND

1.8 102-Chlorotoluene ND

1.6 101,3,5-Trimethylbenzene ND

1.9 101,2,3-Trichloropropane ND

1.6 104-Chlorotoluene ND

1.6 10tert-Butylbenzene ND

1.4 101,2,4-Trimethylbenzene 1.5

1.6 10sec-Butyl Benzene ND

1.5 10p-Isopropyltoluene 1.9

1.7 101,3-Dichlorobenzene ND

1.7 101,4-Dichlorobenzene ND

1.5 10n-Butylbenzene 2.0

1.8 101,2-Dichlorobenzene ND

1.8 101,2-Dibromo-3-Chloropropane ND

1.4 10Hexachlorobutadiene 2.4

1.5 101,2,4-Trichlorobenzene 3.0

1.7 10Naphthalene 3.0

1.7 101,2,3-Trichlorobenzene 3.5

1.7 102-Butanone ND

(S) Dibromofluoromethane 92.4

(S) Toluene-d8 101

(S) 4-Bromofluorobenzene 114

Page 49 of 62Total Page Count: 62

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MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/Kg

11039075035

Soil 430680

1803295

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.2 10Dichlorodifluoromethane ND

1.8 10Chloromethane ND

2.0 10Vinyl Chloride ND

2.7 10Bromomethane ND

3.0 10Chloroethane ND

2.1 10Trichlorofluoromethane ND

2.0 101,1-Dichloroethene ND

1.9 10Freon 113 ND

7.1 10Methylene Chloride ND

2.1 10trans-1,2-Dichloroethene ND

2.3 10MTBE ND

12 50tert-Butanol ND

2.3 10Diisopropyl ether (DIPE) ND

2.2 101,1-Dichloroethane ND

2.3 10ETBE ND

2.2 10cis-1,2-Dichloroethene ND

1.9 102,2-Dichloropropane ND

2.3 10Bromochloromethane ND

2.4 10Chloroform ND

2.1 10Carbon Tetrachloride ND

2.1 101,1,1-Trichloroethane ND

2.0 101,1-Dichloropropene ND

2.2 10Benzene ND

2.3 10TAME ND

2.3 101,2-Dichloroethane ND

1.8 10Trichloroethylene ND

1.8 10Dibromomethane ND

1.9 101,2-Dichloropropane ND

2.0 10Bromodichloromethane ND

1.6 10cis-1,3-Dichloropropene ND

1.8 10Toluene ND

1.7 10Tetrachloroethylene ND

1.6 10trans-1,3-Dichloropropene ND

1.8 101,1,2-Trichloroethane ND

1.9 10Dibromochloromethane ND

1.8 101,3-Dichloropropane ND

1.8 101,2-Dibromoethane ND

1.8 10Chlorobenzene ND

1.7 10Ethyl Benzene ND

1.9 101,1,1,2-Tetrachloroethane ND

3.2 10m,p-Xylene ND

1.7 10o-Xylene ND

Page 50 of 62Total Page Count: 62

Page 107: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/Kg

11039075035

Soil 430680

1803295

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.6 10Styrene 1.6

1.7 10Bromoform ND

1.6 10Isopropyl Benzene ND

1.6 10n-Propylbenzene ND

1.8 10Bromobenzene ND

1.9 101,1,2,2-Tetrachloroethane ND

1.8 102-Chlorotoluene ND

1.6 101,3,5-Trimethylbenzene ND

1.9 101,2,3-Trichloropropane ND

1.6 104-Chlorotoluene ND

1.6 10tert-Butylbenzene ND

1.4 101,2,4-Trimethylbenzene 1.8

1.6 10sec-Butyl Benzene 1.6

1.5 10p-Isopropyltoluene 2.2

1.7 101,3-Dichlorobenzene ND

1.7 101,4-Dichlorobenzene ND

1.5 10n-Butylbenzene 2.5

1.8 101,2-Dichlorobenzene ND

1.8 101,2-Dibromo-3-Chloropropane ND

1.4 10Hexachlorobutadiene 3.2

1.5 101,2,4-Trichlorobenzene 3.6

1.7 10Naphthalene 3.8

1.7 101,2,3-Trichlorobenzene 4.1

1.7 102-Butanone ND

(S) Dibromofluoromethane 95.3

(S) Toluene-d8 97.9

(S) 4-Bromofluorobenzene 111

Page 51 of 62Total Page Count: 62

Page 108: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/Kg

11039075035

Soil 430680

1803295

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

120 1000Dichlorodifluoromethane ND

180 1000Chloromethane ND

200 1000Vinyl Chloride ND

270 1000Bromomethane ND

300 1000Chloroethane ND

210 1000Trichlorofluoromethane ND

200 10001,1-Dichloroethene ND

190 1000Freon 113 ND

710 1000Methylene Chloride ND

210 1000trans-1,2-Dichloroethene ND

230 1000MTBE ND

1200 5000tert-Butanol ND

230 1000Diisopropyl ether (DIPE) ND

220 10001,1-Dichloroethane ND

230 1000ETBE ND

220 1000cis-1,2-Dichloroethene ND

190 10002,2-Dichloropropane ND

230 1000Bromochloromethane ND

240 1000Chloroform ND

210 1000Carbon Tetrachloride ND

210 10001,1,1-Trichloroethane ND

200 10001,1-Dichloropropene ND

220 1000Benzene ND

230 1000TAME ND

230 10001,2-Dichloroethane ND

180 1000Trichloroethylene ND

180 1000Dibromomethane ND

190 10001,2-Dichloropropane ND

200 1000Bromodichloromethane ND

160 1000cis-1,3-Dichloropropene ND

180 1000Toluene ND

170 1000Tetrachloroethylene ND

160 1000trans-1,3-Dichloropropene ND

180 10001,1,2-Trichloroethane ND

190 1000Dibromochloromethane ND

180 10001,3-Dichloropropane ND

180 10001,2-Dibromoethane ND

180 1000Chlorobenzene ND

170 1000Ethyl Benzene ND

190 10001,1,1,2-Tetrachloroethane ND

320 1000m,p-Xylene ND

170 1000o-Xylene ND

Page 52 of 62Total Page Count: 62

Page 109: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/Kg

11039075035

Soil 430680

1803295

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

160 1000Styrene ND

170 1000Bromoform ND

160 1000Isopropyl Benzene ND

160 1000n-Propylbenzene ND

180 1000Bromobenzene ND

190 10001,1,2,2-Tetrachloroethane ND

180 10002-Chlorotoluene ND

160 10001,3,5-Trimethylbenzene ND

190 10001,2,3-Trichloropropane ND

160 10004-Chlorotoluene ND

160 1000tert-Butylbenzene ND

140 10001,2,4-Trimethylbenzene ND

160 1000sec-Butyl Benzene ND

150 1000p-Isopropyltoluene ND

170 10001,3-Dichlorobenzene ND

170 10001,4-Dichlorobenzene ND

150 1000n-Butylbenzene ND

180 10001,2-Dichlorobenzene ND

180 10001,2-Dibromo-3-Chloropropane ND

140 1000Hexachlorobutadiene 180

150 10001,2,4-Trichlorobenzene ND

170 1000Naphthalene 190

170 10001,2,3-Trichlorobenzene 230

170 10002-Butanone ND

(S) Dibromofluoromethane 92.0

(S) Toluene-d8 96.6

(S) 4-Bromofluorobenzene 109

Page 53 of 62Total Page Count: 62

Page 110: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:ug/L

11039085030VOC

Water 430682

1803295

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.26 0.50Dichlorodifluoromethane ND

0.17 0.50Chloromethane ND

0.21 0.50Vinyl Chloride ND

0.21 0.50Bromomethane ND

0.11 0.50Chloroethane ND

0.19 0.50Trichlorofluoromethane ND

0.14 0.501,1-Dichloroethene ND

0.34 0.50Freon 113 ND

0.13 0.50Methylene Chloride 0.16

0.16 0.50trans-1,2-Dichloroethene ND

0.077 0.50MTBE ND

7.4 10tert-Butanol ND

0.12 0.50Diisopropyl ether (DIPE) ND

0.12 0.501,1-Dichloroethane ND

0.064 0.50ETBE ND

0.15 0.50cis-1,2-Dichloroethene ND

0.094 0.502,2-Dichloropropane ND

0.15 0.50Bromochloromethane ND

0.12 0.50Chloroform ND

0.16 0.50Carbon Tetrachloride ND

0.16 0.501,1,1-Trichloroethane ND

0.19 0.501,1-Dichloropropene ND

0.16 0.50Benzene ND

0.072 0.50TAME ND

0.11 0.501,2-Dichloroethane ND

0.15 0.50Trichloroethylene ND

0.11 0.50Dibromomethane ND

0.089 0.501,2-Dichloropropane ND

0.076 0.50Bromodichloromethane ND

0.078 0.50cis-1,3-Dichloropropene ND

0.14 0.50Toluene ND

0.24 0.50Tetrachloroethylene ND

0.22 0.50trans-1,3-Dichloropropene ND

0.076 0.501,1,2-Trichloroethane ND

0.18 0.50Dibromochloromethane ND

0.22 0.501,3-Dichloropropane ND

0.079 0.501,2-Dibromoethane ND

0.16 0.50Chlorobenzene ND

0.20 0.50Ethyl Benzene ND

0.087 0.501,1,1,2-Tetrachloroethane ND

0.39 1.0m,p-Xylene ND

0.15 0.50o-Xylene ND

Page 54 of 62Total Page Count: 62

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MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:ug/L

11039085030VOC

Water 430682

1803295

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.11 0.50Styrene ND

0.076 0.50Bromoform ND

0.22 0.50Isopropyl Benzene ND

0.30 0.50n-Propylbenzene ND

0.15 0.50Bromobenzene ND

0.079 0.501,1,2,2-Tetrachloroethane ND

0.25 0.502-Chlorotoluene ND

0.24 0.501,3,5-Trimethylbenzene ND

0.15 0.501,2,3-Trichloropropane ND

0.22 0.504-Chlorotoluene ND

0.26 0.50tert-Butylbenzene ND

0.23 0.501,2,4-Trimethylbenzene ND

0.30 0.50sec-Butyl Benzene ND

0.27 0.50p-Isopropyltoluene ND

0.17 0.501,3-Dichlorobenzene ND

0.18 0.501,4-Dichlorobenzene ND

0.27 0.50n-Butylbenzene ND

0.16 0.501,2-Dichlorobenzene ND

0.76 2.01,2-Dibromo-3-Chloropropane ND

0.62 2.0Hexachlorobutadiene ND

0.93 2.01,2,4-Trichlorobenzene ND

1.2 2.0Naphthalene ND

1.2 2.01,2,3-Trichlorobenzene ND

(S) Dibromofluoromethane 128

(S) Toluene-d8 106

(S) 4-Bromofluorobenzene 98.3

Page 55 of 62Total Page Count: 62

Page 112: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:

5035 1103868

3/29/2018SW8260B 430643

ug/Kg

1803295

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

10 50.02.0 14.3 3053.7 - 1391,1-Dichloroethene 72.9 83.9ND

10 50.02.2 15.8 3066.5 - 135Benzene 81.7 95.8ND

10 50.01.8 12.8 3057.5 - 150Trichloroethylene 80.6 91.6ND

10 50.01.8 11.4 3056.8 - 134Toluene 83.9 94.2ND

10 50.01.8 12.5 3057.4 - 134Chlorobenzene 84.0 95.1ND

50.0 59.8 - 148(S) Dibromofluoromethane 80.4 97.0

50.0 55.2 - 133(S) Toluene-d8 82.8 93.0

50.0 55.8 - 141(S) 4-Bromofluorobenzene 83.2 95.1

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:

5030VOC 1103894

3/30/2018SW8260B 430669

ug/L

1803295

Water

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.50 17.90.14 1.45 3061.4 - 1291,1-Dichloroethene 117 115ND

0.50 17.90.16 1.53 3066.9 - 140Benzene 110 108ND

0.50 17.90.15 0.531 3069.3 - 144Trichloroethylene 106 105ND

0.50 17.90.14 1.52 3076.6 - 123Toluene 110 111ND

0.50 17.90.16 1.61 3073.9 - 137Chlorobenzene 105 103ND

17.9 61.2 - 131(S) Dibromofluoromethane 116 118

17.9 75.1 - 127(S) Toluene-d8 107 108

17.9 64.1 - 120(S) 4-Bromofluorobenzene 100 103

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:

5035 1103900

3/29/2018SW8260B 430674

ug/Kg

1803295

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

10 50.02.0 2.96 3053.7 - 1391,1-Dichloroethene 79.9 82.3ND

10 50.02.2 4.92 3066.5 - 135Benzene 87.2 91.6ND

10 50.01.8 4.07 3057.5 - 150Trichloroethylene 91.4 95.1ND

10 50.01.8 1.79 3056.8 - 134Toluene 99.4 101ND

10 50.01.8 3.00 3057.4 - 134Chlorobenzene 98.6 102ND

50.0 59.8 - 148(S) Dibromofluoromethane 93.1 98.2

50.0 55.2 - 133(S) Toluene-d8 99.9 101

50.0 55.8 - 141(S) 4-Bromofluorobenzene 106 109

Page 56 of 62Total Page Count: 62

Page 113: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:

5035 1103907

3/30/2018SW8260B 430680

ug/Kg

1803295

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

10 50.02.0 1.67 3053.7 - 1391,1-Dichloroethene 96.5 94.8ND

10 50.02.2 3.07 3066.5 - 135Benzene 92.6 89.9ND

10 50.01.8 2.14 3057.5 - 150Trichloroethylene 94.3 92.4ND

10 50.01.8 2.62 3056.8 - 134Toluene 100 97.7ND

10 50.01.8 3.72 3057.4 - 134Chlorobenzene 98.6 94.9ND

50.0 59.8 - 148(S) Dibromofluoromethane 95.1 92.9

50.0 55.2 - 133(S) Toluene-d8 102 99.7

50.0 55.8 - 141(S) 4-Bromofluorobenzene 105 105

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:

5030VOC 1103908

4/2/2018SW8260B 430682

ug/L

1803295

Water

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.50 17.90.14 7.71 3061.4 - 1291,1-Dichloroethene 105 113ND

0.50 17.90.16 7.56 3066.9 - 140Benzene 107 115ND

0.50 17.90.15 4.19 3069.3 - 144Trichloroethylene 105 109ND

0.50 17.90.14 3.53 3076.6 - 123Toluene 109 113ND

0.50 17.90.16 4.17 3073.9 - 137Chlorobenzene 105 110ND

17.9 61.2 - 131(S) Dibromofluoromethane 118 125

17.9 75.1 - 127(S) Toluene-d8 110 114

17.9 64.1 - 120(S) 4-Bromofluorobenzene 110 113

Page 57 of 62Total Page Count: 62

Page 114: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Laboratory Qualifiers and Definitions

Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte

concentration is greater than zero

Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and

analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc)

Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document

laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample

(sample duplicate, LCSD, MSD)

Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample

processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can

be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factorsand/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates

Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, butwhich is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen methodof analysis

Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined

compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention timeand primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg(equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % (

equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface)

B - Indicates when the analyte is found in the associated method or preparation blank

D - Surrogate is not recoverable due to the necessary dilution of the sample

E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted)

Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded

J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative

NA - Not Analyzed

N/A - Not Applicable

ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the

spike concentration added

R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts

S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a

case narrative

X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Page 58 of 62Total Page Count: 62

Page 115: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Sample Receipt Checklist

Client Name: Engeo (San Ramon)

Project Name: 282 S. Montgomery

Work Order No.: 1803295

Date and Time Received: 3/28/2018 6:00:00PM

Received By: Helena Ueng

Physically Logged By: Helena Ueng

Carrier Name: Client Drop Off

Checklist Completed By: Helena Ueng

Comments:

Chain of Custody (COC) Information

Shipping Container/Cooler In Good Condition?

Custody seals intact on shipping container/cooler?

Custody seals intact on sample bottles?

Chain of custody present?

Chain of custody signed when relinquished and received?

Chain of custody agrees with sample labels?

Samples in proper container/bottle?

Sufficient sample volume for indicated test?

All samples received within holding time?

Container/Temp Blank temperature in compliance?

Water-VOA vials have zero headspace?

Water-pH acceptable upon receipt?

Temperature:

Yes

Not Present

Not Present

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

N/A

Samples containers intact? Yes

°C

Sample Receipt Information

Sample Preservation and Hold Time (HT) Information

pH Checked by: N/A pH Adjusted by: N/A

2.0

Page 59 of 62Total Page Count: 62

Page 116: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Login Summary Report

Report Due Date:

3/28/2018

IIEngeo (San Ramon)TL5123

282 S. Montgomery

14121.001.000

4/2/2018

TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:

3 Day Std:3

6:00 pm

1803295Work Order # :

SubbedRequested

Tests

Test

On Hold

Sample

On Hold

Scheduled

Disposal

MatrixCollection

Date/Time

Client

Sample ID

WO Sample ID

S6 @ 1'1803295-001A Soil 09/24/1803/28/18 11:00

VOC_S_8260B

S6 @ 5'1803295-002A Soil 09/24/1803/28/18 11:05

VOC_S_8260B

S6 @ 10'1803295-003A Soil 09/24/1803/28/18 11:10

VOC_S_8260B

S7 @ 1'1803295-004A Soil 09/24/1803/28/18 13:45

VOC_S_8260B

S7 @ 5'1803295-005A Soil 09/24/1803/28/18 13:50

VOC_S_8260B

S7 @ 10'1803295-006A Soil 09/24/1803/28/18 13:55

VOC_S_8260B

S8 @ 1'1803295-007A Soil 09/24/1803/28/18 14:30

VOC_S_8260B

S8 @ 5'1803295-008A Soil 09/24/1803/28/18 14:35

VOC_S_8260B

S8 @ 10'1803295-009A Soil 09/24/1803/28/18 14:40

VOC_S_8260B

S10 @ 1'1803295-010A Soil 09/24/1803/28/18 9:50

VOC_S_8260B

S10 @ 5'1803295-011A Soil 09/24/1803/28/18 9:55

VOC_S_8260B

S10 @ 10'1803295-012A Soil 09/24/1803/28/18 10:00

VOC_S_8260B

S16 @ 1'1803295-013A Soil 09/24/1803/28/18 12:45

VOC_S_8260B

S16 @ 5'1803295-014A Soil 09/24/1803/28/18 12:50

VOC_S_8260B

S16 @ 10'1803295-015A Soil 09/24/1803/28/18 12:55

VOC_S_8260B

GW 61803295-016A Water 05/12/1803/28/18 12:15

VOC_W_8260B

GW 71803295-017A Water 05/12/1803/28/18 15:20

VOC_W_8260B

GW 81803295-018A Water 05/12/1803/28/18 12:15

VOC_W_8260B

GW 161803295-019A Water 05/12/1803/28/18 12:50

VOC_W_8260B

Page 60 of 62Total Page Count: 62

Page 117: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Login Summary Report

Report Due Date:

3/28/2018

IIEngeo (San Ramon)TL5123

282 S. Montgomery

14121.001.000

4/2/2018

TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:

3 Day Std:3

6:00 pm

1803295Work Order # :

SubbedRequested

Tests

Test

On Hold

Sample

On Hold

Scheduled

Disposal

MatrixCollection

Date/Time

Client

Sample ID

WO Sample ID

Sample Note: Received 6 vials (-019A)

Page 61 of 62Total Page Count: 62

Page 118: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Page 62 of 62Total Page Count: 62

Page 119: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Engeo (San Ramon)

2010 Crow Canyon Place,#250

San Ramon, California 94583

Tel: (925) 866-9000

Fax: (925) 866-0199

RE: 282 S. Montgomery

Torrent Laboratory, Inc. received 5 sample(s) on March 29, 2018 for the analyses presented in the following Report.

Dear Divya Bhargava:

Work Order No.: 1803312

All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date

April 03, 2018

Patti L Sandrock

QA Officer

Page 1 of 24Total Page Count: 24

Page 120: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Date: 4/3/2018

Client: Engeo (San Ramon)

Project: 282 S. Montgomery

Work Order: 1803312

CASE NARRATIVE

No issues encountered with the receiving, preparation, analysis or reporting of the resultsassociated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or fieldblank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Analytical, Inc.

Note for method TO15SIM: Method Blank is only used for Instrument purpose. Canisters areself-certified, and the report for the individually tested canisters can be found on work order"1803313".

Page 2 of 24Total Page Count: 24

Page 121: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/29/18

Date Reported: 04/03/18

Sample Result Summary

1803312-001CW-SG

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Carbon Disulfide 0.37 1.6 5.41ETO15

tert-Butanol 0.62 1.5 2.41ETO15

2-Butanone (MEK) 0.39 1.5 7.91ETO15

Benzene 0.44 1.6 2.21ETO15

Toluene 0.75 1.9 121ETO15

4-Methyl-2-Pentanone (MIBK) 0.75 2.1 161ETO15

Tetrachloroethylene 1.5 3.4 2001ETO15

2-Hexanone 0.65 2.1 6.81ETO15

1,2,4-Trichlorobenzene 2.2 3.7 4.21ETO15

Naphthalene 1.3 2.6 2.91ETO15

1803312-002SG9

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Tetrachloroethylene 73 170 2100050ETO15

1803312-003SG12

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Tetrachloroethylene 150 340 29000100ETO15

1,1,2-Trichloroethane 58 270 520100ETO15

Page 3 of 24Total Page Count: 24

Page 122: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/29/18

Date Reported: 04/03/18

Sample Result Summary

1803312-004Ambient 1

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Dichlorodifluoromethane 0.0178 0.0495 1.491TO15SIM

1,3-Butadiene 0.0220 0.0442 0.4021TO15SIM

Bromomethane 0.00815 0.0194 0.2331TO15SIM

Trichlorofluoromethane 0.0122 0.0281 1.821TO15SIM

1,1-Dichloroethene 0.00671 0.0199 0.1591TO15SIM

Methylene Chloride 0.0145 0.0347 0.8091TO15SIM

Freon 113 0.0129 0.0383 0.8731TO15SIM

Carbon disulfide 0.00283 0.0156 0.01561TO15SIM

trans-1,2-Dichloroethene 0.00372 0.0198 0.05541TO15SIM

MTBE 0.00621 0.0181 0.02531TO15SIM

1,1-Dichloroethane 0.00498 0.0203 0.02431TO15SIM

Hexane 0.00451 0.0176 1.211TO15SIM

Ethyl Acetate 0.00331 0.0180 1.891TO15SIM

ETBE 0.00477 0.0209 0.1001TO15SIM

1,2-Dichloroethane (EDC) 0.00498 0.0203 0.08101TO15SIM

1,1,1-Trichloroethane 0.00819 0.0273 0.02731TO15SIM

Carbon Tetrachloride 0.00849 0.0315 0.6291TO15SIM

Benzene 0.0335 0.0638 1.491TO15SIM

1,2-Dichloropropane 0.00471 0.0231 0.02771TO15SIM

1,4-Dioxane 0.0107 0.0180 0.2051TO15SIM

4-Methyl-2-Pentanone (MIBK) 0.00644 0.0205 0.2421TO15SIM

1,1,2-Trichloroethane 0.00322 0.0273 0.03821TO15SIM

Tetrachloroethylene 0.0257 0.0678 0.7861TO15SIM

Chlorobenzene 0.00230 0.00460 0.01381TO15SIM

Ethyl Benzene 0.00234 0.0217 0.8681TO15SIM

m,p-Xylene 0.00265 0.0434 2.701TO15SIM

Styrene 0.00311 0.0213 0.3881TO15SIM

o-Xylene 0.00221 0.0217 0.8121TO15SIM

4-Ethyl toluene 0.00344 0.0246 0.9741TO15SIM

1,3,5-Trimethylbenzene 0.00354 0.0246 0.2411TO15SIM

1,2,4-Trimethylbenzene 0.00335 0.0246 0.7231TO15SIM

1,3-Dichlorobenzene 0.00565 0.0301 0.03611TO15SIM

1,4-Dichlorobenzene 0.00517 0.0301 0.2521TO15SIM

1,2-Dichlorobenzene 0.00565 0.0301 0.03611TO15SIM

1,2,4-Trichlorobenzene 0.0665 0.0371 0.08901TO15SIM

Naphthalene 0.00472 0.0262 0.2361TO15SIM

Chloromethane 0.0865 0.207 3.5610TO15SIM

2-Propanol (Isopropyl Alcohol) 0.155 1.23 4.7210TO15SIM

tert-Butanol 0.115 0.303 0.78810TO15SIM

2-Butanone (MEK) 0.0271 0.148 1.7110TO15SIM

Tetrahydrofuran 0.286 0.590 2.0110TO15SIM

Toluene 0.0415 0.189 4.1810TO15SIM

2-Hexanone 0.0890 0.205 0.77910TO15SIM

Acetone 0.514 0.952 16.420TO15SIM

Page 4 of 24Total Page Count: 24

Page 123: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/29/18

Date Reported: 04/03/18

Sample Result Summary

1803312-005Ambient 2

Parameters: Results

ug/m3

Analysis

Method

DF MDL PQL

Dichlorodifluoromethane 0.0178 0.0495 1.541TO15SIM

1,3-Butadiene 0.0220 0.0442 0.3381TO15SIM

Bromomethane 0.00815 0.0194 0.1941TO15SIM

Chloroethane 0.00209 0.0132 0.06071TO15SIM

Trichlorofluoromethane 0.0122 0.0281 1.791TO15SIM

1,1-Dichloroethene 0.00671 0.0199 0.1631TO15SIM

Methylene Chloride 0.0145 0.0347 0.7881TO15SIM

Freon 113 0.0129 0.0383 0.8351TO15SIM

Carbon disulfide 0.00283 0.0156 0.02181TO15SIM

trans-1,2-Dichloroethene 0.00372 0.0198 0.05541TO15SIM

MTBE 0.00621 0.0181 0.02171TO15SIM

Hexane 0.00451 0.0176 1.131TO15SIM

Chloroform 0.00810 0.0244 0.4151TO15SIM

ETBE 0.00477 0.0209 0.1091TO15SIM

1,2-Dichloroethane (EDC) 0.00498 0.0203 0.08101TO15SIM

1,1,1-Trichloroethane 0.00819 0.0273 0.02731TO15SIM

Carbon Tetrachloride 0.00849 0.0315 0.6601TO15SIM

Benzene 0.0335 0.0638 1.341TO15SIM

1,2-Dichloropropane 0.00471 0.0231 0.02771TO15SIM

1,4-Dioxane 0.0107 0.0180 0.1841TO15SIM

1,1,2-Trichloroethane 0.00322 0.0273 0.06551TO15SIM

Tetrachloroethylene 0.0257 0.0678 0.9901TO15SIM

Chlorobenzene 0.00230 0.00460 0.02301TO15SIM

Ethyl Benzene 0.00234 0.0217 1.091TO15SIM

m,p-Xylene 0.00265 0.0434 3.821TO15SIM

Styrene 0.00311 0.0213 0.4861TO15SIM

o-Xylene 0.00221 0.0217 1.011TO15SIM

4-Ethyl toluene 0.00344 0.0246 1.331TO15SIM

1,3,5-Trimethylbenzene 0.00354 0.0246 0.3491TO15SIM

1,2,4-Trimethylbenzene 0.00335 0.0246 1.251TO15SIM

1,3-Dichlorobenzene 0.00565 0.0301 0.09021TO15SIM

1,4-Dichlorobenzene 0.00517 0.0301 0.3251TO15SIM

1,2-Dichlorobenzene 0.00565 0.0301 0.08411TO15SIM

1,2,4-Trichlorobenzene 0.0665 0.0371 0.09651TO15SIM

Naphthalene 0.00472 0.0262 0.3301TO15SIM

Chloromethane 0.0865 0.207 4.6810TO15SIM

2-Propanol (Isopropyl Alcohol) 0.155 1.23 4.0110TO15SIM

tert-Butanol 0.115 0.303 1.1810TO15SIM

2-Butanone (MEK) 0.0271 0.148 2.6310TO15SIM

Ethyl Acetate 0.0331 0.180 2.2310TO15SIM

Tetrahydrofuran 0.286 0.590 2.2710TO15SIM

Toluene 0.0415 0.189 4.4510TO15SIM

2-Hexanone 0.0890 0.205 1.3110TO15SIM

Acetone 0.514 0.952 20.520TO15SIM

Page 5 of 24Total Page Count: 24

Page 124: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.2

Certified Clean WO # :

Collection Volume (L):

A7569Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 9:50

14121.001.000

282 S. Montgomery

CW-SG

AirSample Matrix:

Lab Sample ID: 1803312-001A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/30/181.6 2.5 NDND 430642ETO15 14:43 BA

1,1-Difluoroethane 1.00 03/30/180.35 14 NDND 430642ETO15 14:43 BA

1,2-Dichlorotetrafluoroethane 1.00 03/30/1828 56 NDND 430642ETO15 14:43 BA

Chloromethane 1.00 03/30/182.0 4.1 NDND 430642ETO15 14:43 BA

Vinyl Chloride 1.00 03/30/180.23 1.3 NDND 430642ETO15 14:43 BA

1,3-Butadiene 1.00 03/30/180.34 1.1 NDND 430642ETO15 14:43 BA

Bromomethane 1.00 03/30/180.66 1.9 NDND 430642ETO15 14:43 BA

Chloroethane 1.00 03/30/180.81 1.3 NDND 430642ETO15 14:43 BA

Trichlorofluoromethane 1.00 03/30/180.56 2.8 NDND 430642ETO15 14:43 BA

1,1-Dichloroethene 1.00 03/30/180.83 2.0 NDND 430642ETO15 14:43 BA

Freon 113 1.00 03/30/181.0 3.8 NDND 430642ETO15 14:43 BA

Carbon Disulfide 1.00 03/30/180.37 1.6 1.745.4 430642ETO15 14:43 BA

2-Propanol (Isopropyl Alcohol) 1.00 03/30/181.3 12 NDND 430642ETO15 14:43 BA

Methylene Chloride 1.00 03/30/180.70 10 NDND 430642ETO15 14:43 BA

Acetone 1.00 03/30/180.40 12 NDND 430642ETO15 14:43 BA

trans-1,2-Dichloroethene 1.00 03/30/180.48 2.0 NDND 430642ETO15 14:43 BA

Hexane 1.00 03/30/180.46 1.8 NDND 430642ETO15 14:43 BA

MTBE 1.00 03/30/180.44 1.8 NDND 430642ETO15 14:43 BA

tert-Butanol 1.00 03/30/180.62 1.5 0.792.4 430642ETO15 14:43 BA

Diisopropyl ether (DIPE) 1.00 03/30/180.74 2.1 NDND 430642ETO15 14:43 BA

1,1-Dichloroethane 1.00 03/30/180.54 2.0 NDND 430642ETO15 14:43 BA

ETBE 1.00 03/30/180.33 2.1 NDND 430642ETO15 14:43 BA

cis-1,2-Dichloroethene 1.00 03/30/180.83 2.0 NDND 430642ETO15 14:43 BA

Chloroform 1.00 03/30/180.97 2.4 NDND 430642ETO15 14:43 BA

Vinyl Acetate 1.00 03/30/180.76 1.8 NDND 430642ETO15 14:43 BA

Carbon Tetrachloride 1.00 03/30/181.1 3.1 NDND 430642ETO15 14:43 BA

1,1,1-Trichloroethane 1.00 03/30/180.79 2.7 NDND 430642ETO15 14:43 BA

2-Butanone (MEK) 1.00 03/30/180.39 1.5 2.687.9 430642ETO15 14:43 BA

Ethyl Acetate 1.00 03/30/180.48 1.8 NDND 430642ETO15 14:43 BA

Tetrahydrofuran 1.00 03/30/180.45 1.5 NDND 430642ETO15 14:43 BA

Benzene 1.00 03/30/180.44 1.6 0.692.2 430642ETO15 14:43 BA

TAME 1.00 03/30/180.67 2.1 NDND 430642ETO15 14:43 BA

1,2-Dichloroethane (EDC) 1.00 03/30/180.42 2.0 NDND 430642ETO15 14:43 BA

Page 6 of 24Total Page Count: 24

Page 125: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.2

Certified Clean WO # :

Collection Volume (L):

A7569Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 9:50

14121.001.000

282 S. Montgomery

CW-SG

AirSample Matrix:

Lab Sample ID: 1803312-001A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 1.00 03/30/180.81 2.7 NDND 430642ETO15 14:43 BA

1,2-Dichloropropane 1.00 03/30/180.76 2.3 NDND 430642ETO15 14:43 BA

Bromodichloromethane 1.00 03/30/180.74 3.4 NDND 430642ETO15 14:43 BA

1,4-Dioxane 1.00 03/30/181.8 3.6 NDND 430642ETO15 14:43 BA

trans-1,3-Dichloropropene 1.00 03/30/181.1 2.3 NDND 430642ETO15 14:43 BA

Toluene 1.00 03/30/180.75 1.9 3.1812 430642ETO15 14:43 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/30/180.75 2.1 3.9016 430642ETO15 14:43 BA

cis-1,3-Dichloropropene 1.00 03/30/180.42 2.3 NDND 430642ETO15 14:43 BA

Tetrachloroethylene 1.00 03/30/181.5 3.4 29.50200 430642ETO15 14:43 BA

1,1,2-Trichloroethane 1.00 03/30/180.58 2.7 NDND 430642ETO15 14:43 BA

Dibromochloromethane 1.00 03/30/181.1 4.3 NDND 430642ETO15 14:43 BA

1,2-Dibromoethane (EDB) 1.00 03/30/180.74 3.8 NDND 430642ETO15 14:43 BA

2-Hexanone 1.00 03/30/180.65 2.1 1.666.8 430642ETO15 14:43 BA

Ethyl Benzene 1.00 03/30/180.63 2.2 NDND 430642ETO15 14:43 BA

Chlorobenzene 1.00 03/30/180.60 2.3 NDND 430642ETO15 14:43 BA

1,1,1,2-Tetrachloroethane 1.00 03/30/180.84 3.4 NDND 430642ETO15 14:43 BA

m,p-Xylene 1.00 03/30/180.98 2.2 NDND 430642ETO15 14:43 BA

o-Xylene 1.00 03/30/180.30 2.2 NDND 430642ETO15 14:43 BA

Styrene 1.00 03/30/180.46 2.1 NDND 430642ETO15 14:43 BA

Bromoform 1.00 03/30/181.3 5.2 NDND 430642ETO15 14:43 BA

1,1,2,2-Tetrachloroethane 1.00 03/30/180.82 3.4 NDND 430642ETO15 14:43 BA

4-Ethyl Toluene 1.00 03/30/180.55 2.5 NDND 430642ETO15 14:43 BA

1,3,5-Trimethylbenzene 1.00 03/30/180.30 2.5 NDND 430642ETO15 14:43 BA

1,2,4-Trimethylbenzene 1.00 03/30/180.60 2.5 NDND 430642ETO15 14:43 BA

1,4-Dichlorobenzene 1.00 03/30/180.75 3.0 NDND 430642ETO15 14:43 BA

1,3-Dichlorobenzene 1.00 03/30/181.3 3.0 NDND 430642ETO15 14:43 BA

1,2-Dichlorobenzene 1.00 03/30/181.1 3.0 NDND 430642ETO15 14:43 BA

Hexachlorobutadiene 1.00 03/30/181.9 5.3 NDND 430642ETO15 14:43 BA

1,2,4-Trichlorobenzene 1.00 03/30/182.2 3.7 0.574.2 430642ETO15 14:43 BA

Naphthalene 1.00 03/30/181.3 2.6 0.552.9 430642ETO15 14:43 BA

(S) 4-Bromofluorobenzene 1.00 03/30/1850 150 110 % 430642ETO15 14:43 BA

Page 7 of 24Total Page Count: 24

Page 126: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.0

Certified Clean WO # :

Collection Volume (L):

N1426Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 11:15

14121.001.000

282 S. Montgomery

SG9

AirSample Matrix:

Lab Sample ID: 1803312-002A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 50.00 03/30/1878 120 NDND 430642ETO15 13:49 BA

1,1-Difluoroethane 50.00 03/30/1817 680 NDND 430642ETO15 13:49 BA

1,2-Dichlorotetrafluoroethane 50.00 03/30/181400 2800 NDND 430642ETO15 13:49 BA

Chloromethane 50.00 03/30/18100 210 NDND 430642ETO15 13:49 BA

Vinyl Chloride 50.00 03/30/1811 64 NDND 430642ETO15 13:49 BA

1,3-Butadiene 50.00 03/30/1817 55 NDND 430642ETO15 13:49 BA

Bromomethane 50.00 03/30/1833 97 NDND 430642ETO15 13:49 BA

Chloroethane 50.00 03/30/1841 66 NDND 430642ETO15 13:49 BA

Trichlorofluoromethane 50.00 03/30/1828 140 NDND 430642ETO15 13:49 BA

1,1-Dichloroethene 50.00 03/30/1841 99 NDND 430642ETO15 13:49 BA

Freon 113 50.00 03/30/1851 190 NDND 430642ETO15 13:49 BA

Carbon Disulfide 50.00 03/30/1819 78 NDND 430642ETO15 13:49 BA

2-Propanol (Isopropyl Alcohol) 50.00 03/30/1864 620 NDND 430642ETO15 13:49 BA

Methylene Chloride 50.00 03/30/1835 520 NDND 430642ETO15 13:49 BA

Acetone 50.00 03/30/1820 600 NDND 430642ETO15 13:49 BA

trans-1,2-Dichloroethene 50.00 03/30/1824 99 NDND 430642ETO15 13:49 BA

Hexane 50.00 03/30/1823 88 NDND 430642ETO15 13:49 BA

MTBE 50.00 03/30/1822 90 NDND 430642ETO15 13:49 BA

tert-Butanol 50.00 03/30/1831 76 NDND 430642ETO15 13:49 BA

Diisopropyl ether (DIPE) 50.00 03/30/1837 100 NDND 430642ETO15 13:49 BA

1,1-Dichloroethane 50.00 03/30/1827 100 NDND 430642ETO15 13:49 BA

ETBE 50.00 03/30/1816 100 NDND 430642ETO15 13:49 BA

cis-1,2-Dichloroethene 50.00 03/30/1842 99 NDND 430642ETO15 13:49 BA

Chloroform 50.00 03/30/1848 120 NDND 430642ETO15 13:49 BA

Vinyl Acetate 50.00 03/30/1838 88 NDND 430642ETO15 13:49 BA

Carbon Tetrachloride 50.00 03/30/1855 160 NDND 430642ETO15 13:49 BA

1,1,1-Trichloroethane 50.00 03/30/1840 140 NDND 430642ETO15 13:49 BA

2-Butanone (MEK) 50.00 03/30/1819 74 NDND 430642ETO15 13:49 BA

Ethyl Acetate 50.00 03/30/1824 90 NDND 430642ETO15 13:49 BA

Tetrahydrofuran 50.00 03/30/1822 74 NDND 430642ETO15 13:49 BA

Benzene 50.00 03/30/1822 80 NDND 430642ETO15 13:49 BA

TAME 50.00 03/30/1834 100 NDND 430642ETO15 13:49 BA

1,2-Dichloroethane (EDC) 50.00 03/30/1821 100 NDND 430642ETO15 13:49 BA

Page 8 of 24Total Page Count: 24

Page 127: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.0

Certified Clean WO # :

Collection Volume (L):

N1426Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 11:15

14121.001.000

282 S. Montgomery

SG9

AirSample Matrix:

Lab Sample ID: 1803312-002A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 50.00 03/30/1840 130 NDND 430642ETO15 13:49 BA

1,2-Dichloropropane 50.00 03/30/1838 120 NDND 430642ETO15 13:49 BA

Bromodichloromethane 50.00 03/30/1837 170 NDND 430642ETO15 13:49 BA

1,4-Dioxane 50.00 03/30/1890 180 NDND 430642ETO15 13:49 BA

trans-1,3-Dichloropropene 50.00 03/30/1853 110 NDND 430642ETO15 13:49 BA

Toluene 50.00 03/30/1838 94 NDND 430642ETO15 13:49 BA

4-Methyl-2-Pentanone (MIBK) 50.00 03/30/1837 100 NDND 430642ETO15 13:49 BA

cis-1,3-Dichloropropene 50.00 03/30/1821 110 NDND 430642ETO15 13:49 BA

Tetrachloroethylene 50.00 03/30/1873 170 3,097.3521000 430642ETO15 13:49 BA

1,1,2-Trichloroethane 50.00 03/30/1829 140 NDND 430642ETO15 13:49 BA

Dibromochloromethane 50.00 03/30/1856 210 NDND 430642ETO15 13:49 BA

1,2-Dibromoethane (EDB) 50.00 03/30/1837 190 NDND 430642ETO15 13:49 BA

2-Hexanone 50.00 03/30/1833 100 NDND 430642ETO15 13:49 BA

Ethyl Benzene 50.00 03/30/1831 110 NDND 430642ETO15 13:49 BA

Chlorobenzene 50.00 03/30/1830 120 NDND 430642ETO15 13:49 BA

1,1,1,2-Tetrachloroethane 50.00 03/30/1842 170 NDND 430642ETO15 13:49 BA

m,p-Xylene 50.00 03/30/1849 110 NDND 430642ETO15 13:49 BA

o-Xylene 50.00 03/30/1815 110 NDND 430642ETO15 13:49 BA

Styrene 50.00 03/30/1823 110 NDND 430642ETO15 13:49 BA

Bromoform 50.00 03/30/1865 260 NDND 430642ETO15 13:49 BA

1,1,2,2-Tetrachloroethane 50.00 03/30/1841 170 NDND 430642ETO15 13:49 BA

4-Ethyl Toluene 50.00 03/30/1827 120 NDND 430642ETO15 13:49 BA

1,3,5-Trimethylbenzene 50.00 03/30/1815 120 NDND 430642ETO15 13:49 BA

1,2,4-Trimethylbenzene 50.00 03/30/1830 120 NDND 430642ETO15 13:49 BA

1,4-Dichlorobenzene 50.00 03/30/1837 150 NDND 430642ETO15 13:49 BA

1,3-Dichlorobenzene 50.00 03/30/1867 150 NDND 430642ETO15 13:49 BA

1,2-Dichlorobenzene 50.00 03/30/1853 150 NDND 430642ETO15 13:49 BA

Hexachlorobutadiene 50.00 03/30/1893 270 NDND 430642ETO15 13:49 BA

1,2,4-Trichlorobenzene 50.00 03/30/18110 190 NDND 430642ETO15 13:49 BA

Naphthalene 50.00 03/30/1864 130 NDND 430642ETO15 13:49 BA

(S) 4-Bromofluorobenzene 50.00 03/30/1850 150 78 % 430642ETO15 13:49 BA

Page 9 of 24Total Page Count: 24

Page 128: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.7

Certified Clean WO # :

Collection Volume (L):

A7560Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 11:30

14121.001.000

282 S. Montgomery

SG12

AirSample Matrix:

Lab Sample ID: 1803312-003A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 100.0 03/30/18160 250 NDND 430642ETO15 15:33 BA

1,1-Difluoroethane 100.0 03/30/1835 1400 NDND 430642ETO15 15:33 BA

1,2-Dichlorotetrafluoroethane 100.0 03/30/182800 5600 NDND 430642ETO15 15:33 BA

Chloromethane 100.0 03/30/18200 410 NDND 430642ETO15 15:33 BA

Vinyl Chloride 100.0 03/30/1823 130 NDND 430642ETO15 15:33 BA

1,3-Butadiene 100.0 03/30/1834 110 NDND 430642ETO15 15:33 BA

Bromomethane 100.0 03/30/1866 190 NDND 430642ETO15 15:33 BA

Chloroethane 100.0 03/30/1881 130 NDND 430642ETO15 15:33 BA

Trichlorofluoromethane 100.0 03/30/1856 280 NDND 430642ETO15 15:33 BA

1,1-Dichloroethene 100.0 03/30/1883 200 NDND 430642ETO15 15:33 BA

Freon 113 100.0 03/30/18100 380 NDND 430642ETO15 15:33 BA

Carbon Disulfide 100.0 03/30/1837 160 NDND 430642ETO15 15:33 BA

2-Propanol (Isopropyl Alcohol) 100.0 03/30/18130 1200 NDND 430642ETO15 15:33 BA

Methylene Chloride 100.0 03/30/1870 1000 NDND 430642ETO15 15:33 BA

Acetone 100.0 03/30/1840 1200 NDND 430642ETO15 15:33 BA

trans-1,2-Dichloroethene 100.0 03/30/1848 200 NDND 430642ETO15 15:33 BA

Hexane 100.0 03/30/1846 180 NDND 430642ETO15 15:33 BA

MTBE 100.0 03/30/1844 180 NDND 430642ETO15 15:33 BA

tert-Butanol 100.0 03/30/1862 150 NDND 430642ETO15 15:33 BA

Diisopropyl ether (DIPE) 100.0 03/30/1874 210 NDND 430642ETO15 15:33 BA

1,1-Dichloroethane 100.0 03/30/1854 200 NDND 430642ETO15 15:33 BA

ETBE 100.0 03/30/1833 210 NDND 430642ETO15 15:33 BA

cis-1,2-Dichloroethene 100.0 03/30/1883 200 NDND 430642ETO15 15:33 BA

Chloroform 100.0 03/30/1897 240 NDND 430642ETO15 15:33 BA

Vinyl Acetate 100.0 03/30/1876 180 NDND 430642ETO15 15:33 BA

Carbon Tetrachloride 100.0 03/30/18110 310 NDND 430642ETO15 15:33 BA

1,1,1-Trichloroethane 100.0 03/30/1879 270 NDND 430642ETO15 15:33 BA

2-Butanone (MEK) 100.0 03/30/1839 150 NDND 430642ETO15 15:33 BA

Ethyl Acetate 100.0 03/30/1848 180 NDND 430642ETO15 15:33 BA

Tetrahydrofuran 100.0 03/30/1845 150 NDND 430642ETO15 15:33 BA

Benzene 100.0 03/30/1844 160 NDND 430642ETO15 15:33 BA

TAME 100.0 03/30/1867 210 NDND 430642ETO15 15:33 BA

1,2-Dichloroethane (EDC) 100.0 03/30/1842 200 NDND 430642ETO15 15:33 BA

Page 10 of 24Total Page Count: 24

Page 129: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 13.7

Certified Clean WO # :

Collection Volume (L):

A7560Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 11:30

14121.001.000

282 S. Montgomery

SG12

AirSample Matrix:

Lab Sample ID: 1803312-003A

SDG:

Prep Batch ID: 1103867

Prep Batch Date/Time: 3/29/18 8:00:00PM

Prep Analyst: BALI

Prep Method: TO15-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Trichloroethylene 100.0 03/30/1881 270 NDND 430642ETO15 15:33 BA

1,2-Dichloropropane 100.0 03/30/1876 230 NDND 430642ETO15 15:33 BA

Bromodichloromethane 100.0 03/30/1874 340 NDND 430642ETO15 15:33 BA

1,4-Dioxane 100.0 03/30/18180 360 NDND 430642ETO15 15:33 BA

trans-1,3-Dichloropropene 100.0 03/30/18110 230 NDND 430642ETO15 15:33 BA

Toluene 100.0 03/30/1875 190 NDND 430642ETO15 15:33 BA

4-Methyl-2-Pentanone (MIBK) 100.0 03/30/1875 210 NDND 430642ETO15 15:33 BA

cis-1,3-Dichloropropene 100.0 03/30/1842 230 NDND 430642ETO15 15:33 BA

Tetrachloroethylene 100.0 03/30/18150 340 4,277.2929000 430642ETO15 15:33 BA

1,1,2-Trichloroethane 100.0 03/30/1858 270 95.24520 430642ETO15 15:33 BA

Dibromochloromethane 100.0 03/30/18110 430 NDND 430642ETO15 15:33 BA

1,2-Dibromoethane (EDB) 100.0 03/30/1874 380 NDND 430642ETO15 15:33 BA

2-Hexanone 100.0 03/30/1865 210 NDND 430642ETO15 15:33 BA

Ethyl Benzene 100.0 03/30/1863 220 NDND 430642ETO15 15:33 BA

Chlorobenzene 100.0 03/30/1860 230 NDND 430642ETO15 15:33 BA

1,1,1,2-Tetrachloroethane 100.0 03/30/1884 340 NDND 430642ETO15 15:33 BA

m,p-Xylene 100.0 03/30/1898 220 NDND 430642ETO15 15:33 BA

o-Xylene 100.0 03/30/1830 220 NDND 430642ETO15 15:33 BA

Styrene 100.0 03/30/1846 210 NDND 430642ETO15 15:33 BA

Bromoform 100.0 03/30/18130 520 NDND 430642ETO15 15:33 BA

1,1,2,2-Tetrachloroethane 100.0 03/30/1882 340 NDND 430642ETO15 15:33 BA

4-Ethyl Toluene 100.0 03/30/1855 250 NDND 430642ETO15 15:33 BA

1,3,5-Trimethylbenzene 100.0 03/30/1830 250 NDND 430642ETO15 15:33 BA

1,2,4-Trimethylbenzene 100.0 03/30/1860 250 NDND 430642ETO15 15:33 BA

1,4-Dichlorobenzene 100.0 03/30/1875 300 NDND 430642ETO15 15:33 BA

1,3-Dichlorobenzene 100.0 03/30/18130 300 NDND 430642ETO15 15:33 BA

1,2-Dichlorobenzene 100.0 03/30/18110 300 NDND 430642ETO15 15:33 BA

Hexachlorobutadiene 100.0 03/30/18190 530 NDND 430642ETO15 15:33 BA

1,2,4-Trichlorobenzene 100.0 03/30/18220 370 NDND 430642ETO15 15:33 BA

Naphthalene 100.0 03/30/18130 260 NDND 430642ETO15 15:33 BA

(S) 4-Bromofluorobenzene 100.0 03/30/1850 150 88 % 430642ETO15 15:33 BA

Page 11 of 24Total Page Count: 24

Page 130: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.2

Certified Clean WO # :

Collection Volume (L):

1415Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 /

14121.001.000

282 S. Montgomery

Ambient 1

AirSample Matrix:

Lab Sample ID: 1803312-004A

SDG:

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/30/180.0178 0.0495 0.301.49 430697TO15SIM 19:56 BA

Vinyl Chloride 1.00 03/30/180.00366 0.00768 NDND 430697TO15SIM 19:56 BA

1,3-Butadiene 1.00 03/30/180.0220 0.0442 0.180.402 430697TO15SIM 19:56 BA

Bromomethane 1.00 03/30/180.00815 0.0194 0.060.233 430697TO15SIM 19:56 BA

Chloroethane 1.00 03/30/180.00209 0.0132 NDND 430697TO15SIM 19:56 BA

Trichlorofluoromethane 1.00 03/30/180.0122 0.0281 0.321.82 430697TO15SIM 19:56 BA

1,1-Dichloroethene 1.00 03/30/180.00671 0.0199 0.040.159 430697TO15SIM 19:56 BA

Methylene Chloride 1.00 03/30/180.0145 0.0347 0.230.809 430697TO15SIM 19:56 BA

Freon 113 1.00 03/30/180.0129 0.0383 0.110.873 430697TO15SIM 19:56 BA

Carbon disulfide 1.00 03/30/180.00283 0.0156 0.010.0156 430697TO15SIM 19:56 BA

trans-1,2-Dichloroethene 1.00 03/30/180.00372 0.0198 0.010.0554 430697TO15SIM 19:56 BA

MTBE 1.00 03/30/180.00621 0.0181 0.010.0253 430697TO15SIM 19:56 BA

1,1-Dichloroethane 1.00 03/30/180.00498 0.0203 0.010.0243 430697TO15SIM 19:56 BA

Vinyl Acetate 1.00 03/30/180.00503 0.0176 NDND 430697TO15SIM 19:56 BA

Hexane 1.00 03/30/180.00451 0.0176 0.341.21 430697TO15SIM 19:56 BA

Diisopropyl ether (DIPE) 1.00 03/30/180.00439 0.0209 NDND 430697TO15SIM 19:56 BA

cis-1,2-Dichloroethene 1.00 03/30/180.00404 0.0198 NDND 430697TO15SIM 19:56 BA

Ethyl Acetate 1.00 03/30/180.00331 0.0180 0.531.89 430697TO15SIM 19:56 BA

Chloroform 1.00 03/30/180.00810 0.0244 NDND 430697TO15SIM 19:56 BA

ETBE 1.00 03/30/180.00477 0.0209 0.020.100 430697TO15SIM 19:56 BA

1,2-Dichloroethane (EDC) 1.00 03/30/180.00498 0.0203 0.020.0810 430697TO15SIM 19:56 BA

1,1,1-Trichloroethane 1.00 03/30/180.00819 0.0273 0.010.0273 430697TO15SIM 19:56 BA

Carbon Tetrachloride 1.00 03/30/180.00849 0.0315 0.100.629 430697TO15SIM 19:56 BA

Benzene 1.00 03/30/180.0335 0.0638 0.471.49 430697TO15SIM 19:56 BA

TAME 1.00 03/30/180.00247 0.0209 NDND 430697TO15SIM 19:56 BA

1,2-Dichloropropane 1.00 03/30/180.00471 0.0231 0.010.0277 430697TO15SIM 19:56 BA

Trichloroethylene 1.00 03/30/180.0112 0.0269 NDND 430697TO15SIM 19:56 BA

Bromodichloromethane 1.00 03/30/180.00556 0.0335 NDND 430697TO15SIM 19:56 BA

1,4-Dioxane 1.00 03/30/180.0107 0.0180 0.060.205 430697TO15SIM 19:56 BA

cis-1,3-Dichloropropene 1.00 03/30/180.00359 0.0227 NDND 430697TO15SIM 19:56 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/30/180.00644 0.0205 0.060.242 430697TO15SIM 19:56 BA

trans-1,3-Dichloropropene 1.00 03/30/180.00400 0.0227 NDND 430697TO15SIM 19:56 BA

1,1,2-Trichloroethane 1.00 03/30/180.00322 0.0273 0.010.0382 430697TO15SIM 19:56 BA

Page 12 of 24Total Page Count: 24

Page 131: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.2

Certified Clean WO # :

Collection Volume (L):

1415Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 /

14121.001.000

282 S. Montgomery

Ambient 1

AirSample Matrix:

Lab Sample ID: 1803312-004A

SDG:

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dibromochloromethane 1.00 03/30/180.0214 0.0426 NDND 430697TO15SIM 19:56 BA

1,2-Dibromoethane (EDB) 1.00 03/30/180.00415 0.0384 NDND 430697TO15SIM 19:56 BA

Tetrachloroethylene 1.00 03/30/180.0257 0.0678 0.120.786 430697TO15SIM 19:56 BA

1,1,1,2-Tetrachloroethane 1.00 03/30/180.00893 0.0344 NDND 430697TO15SIM 19:56 BA

Chlorobenzene 1.00 03/30/180.00230 0.00460 0.000.0138 430697TO15SIM 19:56 BA

Ethyl Benzene 1.00 03/30/180.00234 0.0217 0.200.868 430697TO15SIM 19:56 BA

m,p-Xylene 1.00 03/30/180.00265 0.0434 0.622.70 430697TO15SIM 19:56 BA

Bromoform 1.00 03/30/180.0341 0.103 NDND 430697TO15SIM 19:56 BA

Styrene 1.00 03/30/180.00311 0.0213 0.090.388 430697TO15SIM 19:56 BA

1,1,2,2-tetrachloroethane 1.00 03/30/180.00234 0.0687 NDND 430697TO15SIM 19:56 BA

o-Xylene 1.00 03/30/180.00221 0.0217 0.190.812 430697TO15SIM 19:56 BA

4-Ethyl toluene 1.00 03/30/180.00344 0.0246 0.200.974 430697TO15SIM 19:56 BA

1,3,5-Trimethylbenzene 1.00 03/30/180.00354 0.0246 0.050.241 430697TO15SIM 19:56 BA

1,2,4-Trimethylbenzene 1.00 03/30/180.00335 0.0246 0.150.723 430697TO15SIM 19:56 BA

1,3-Dichlorobenzene 1.00 03/30/180.00565 0.0301 0.010.0361 430697TO15SIM 19:56 BA

1,4-Dichlorobenzene 1.00 03/30/180.00517 0.0301 0.040.252 430697TO15SIM 19:56 BA

1,2-Dichlorobenzene 1.00 03/30/180.00565 0.0301 0.010.0361 430697TO15SIM 19:56 BA

1,2,4-Trichlorobenzene 1.00 03/30/180.0665 0.0371 0.010.0890 430697TO15SIM 19:56 BA

Naphthalene 1.00 03/30/180.00472 0.0262 0.050.236 430697TO15SIM 19:56 BA

Hexachlorobutadiene 1.00 03/30/180.106 0.213 NDND 430697TO15SIM 19:56 BA

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Chloromethane 10.00 03/30/180.0865 0.207 1.723.56 430697TO15SIM 20:57 BA

2-Propanol (Isopropyl Alcohol) 10.00 03/30/180.155 1.23 1.924.72 430697TO15SIM 20:57 BA

tert-Butanol 10.00 03/30/180.115 0.303 0.260.788 430697TO15SIM 20:57 BA

2-Butanone (MEK) 10.00 03/30/180.0271 0.148 0.581.71 430697TO15SIM 20:57 BA

Tetrahydrofuran 10.00 03/30/180.286 0.590 0.682.01 430697TO15SIM 20:57 BA

Toluene 10.00 03/30/180.0415 0.189 1.114.18 430697TO15SIM 20:57 BA

Page 13 of 24Total Page Count: 24

Page 132: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 11.2

Certified Clean WO # :

Collection Volume (L):

1415Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 /

14121.001.000

282 S. Montgomery

Ambient 1

AirSample Matrix:

Lab Sample ID: 1803312-004A

SDG:

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

2-Hexanone 10.00 03/30/180.0890 0.205 0.190.779 430697TO15SIM 20:57 BA

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Acetone 20.00 03/30/180.514 0.952 6.8916.4 430697TO15SIM 21:46 BA

Page 14 of 24Total Page Count: 24

Page 133: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 12.5

Certified Clean WO # :

Collection Volume (L):

1425Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 6:20

14121.001.000

282 S. Montgomery

Ambient 2

AirSample Matrix:

Lab Sample ID: 1803312-005A

SDG:

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Dichlorodifluoromethane 1.00 03/30/180.0178 0.0495 0.311.54 430697TO15SIM 20:32 BA

Vinyl Chloride 1.00 03/30/180.00366 0.00768 NDND 430697TO15SIM 20:32 BA

1,3-Butadiene 1.00 03/30/180.0220 0.0442 0.150.338 430697TO15SIM 20:32 BA

Bromomethane 1.00 03/30/180.00815 0.0194 0.050.194 430697TO15SIM 20:32 BA

Chloroethane 1.00 03/30/180.00209 0.0132 0.020.0607 430697TO15SIM 20:32 BA

Trichlorofluoromethane 1.00 03/30/180.0122 0.0281 0.321.79 430697TO15SIM 20:32 BA

1,1-Dichloroethene 1.00 03/30/180.00671 0.0199 0.040.163 430697TO15SIM 20:32 BA

Methylene Chloride 1.00 03/30/180.0145 0.0347 0.230.788 430697TO15SIM 20:32 BA

Freon 113 1.00 03/30/180.0129 0.0383 0.110.835 430697TO15SIM 20:32 BA

Carbon disulfide 1.00 03/30/180.00283 0.0156 0.010.0218 430697TO15SIM 20:32 BA

trans-1,2-Dichloroethene 1.00 03/30/180.00372 0.0198 0.010.0554 430697TO15SIM 20:32 BA

MTBE 1.00 03/30/180.00621 0.0181 0.010.0217 430697TO15SIM 20:32 BA

1,1-Dichloroethane 1.00 03/30/180.00498 0.0203 NDND 430697TO15SIM 20:32 BA

Vinyl Acetate 1.00 03/30/180.00503 0.0176 NDND 430697TO15SIM 20:32 BA

Hexane 1.00 03/30/180.00451 0.0176 0.321.13 430697TO15SIM 20:32 BA

Diisopropyl ether (DIPE) 1.00 03/30/180.00439 0.0209 NDND 430697TO15SIM 20:32 BA

cis-1,2-Dichloroethene 1.00 03/30/180.00404 0.0198 NDND 430697TO15SIM 20:32 BA

Chloroform 1.00 03/30/180.00810 0.0244 0.090.415 430697TO15SIM 20:32 BA

ETBE 1.00 03/30/180.00477 0.0209 0.030.109 430697TO15SIM 20:32 BA

1,2-Dichloroethane (EDC) 1.00 03/30/180.00498 0.0203 0.020.0810 430697TO15SIM 20:32 BA

1,1,1-Trichloroethane 1.00 03/30/180.00819 0.0273 0.010.0273 430697TO15SIM 20:32 BA

Carbon Tetrachloride 1.00 03/30/180.00849 0.0315 0.100.660 430697TO15SIM 20:32 BA

Benzene 1.00 03/30/180.0335 0.0638 0.421.34 430697TO15SIM 20:32 BA

TAME 1.00 03/30/180.00247 0.0209 NDND 430697TO15SIM 20:32 BA

1,2-Dichloropropane 1.00 03/30/180.00471 0.0231 0.010.0277 430697TO15SIM 20:32 BA

Trichloroethylene 1.00 03/30/180.0112 0.0269 NDND 430697TO15SIM 20:32 BA

Bromodichloromethane 1.00 03/30/180.00556 0.0335 NDND 430697TO15SIM 20:32 BA

1,4-Dioxane 1.00 03/30/180.0107 0.0180 0.050.184 430697TO15SIM 20:32 BA

cis-1,3-Dichloropropene 1.00 03/30/180.00359 0.0227 NDND 430697TO15SIM 20:32 BA

4-Methyl-2-Pentanone (MIBK) 1.00 03/30/180.00644 0.0205 NDND 430697TO15SIM 20:32 BA

trans-1,3-Dichloropropene 1.00 03/30/180.00400 0.0227 NDND 430697TO15SIM 20:32 BA

1,1,2-Trichloroethane 1.00 03/30/180.00322 0.0273 0.010.0655 430697TO15SIM 20:32 BA

Dibromochloromethane 1.00 03/30/180.0214 0.0426 NDND 430697TO15SIM 20:32 BA

Page 15 of 24Total Page Count: 24

Page 134: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 12.5

Certified Clean WO # :

Collection Volume (L):

1425Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 6:20

14121.001.000

282 S. Montgomery

Ambient 2

AirSample Matrix:

Lab Sample ID: 1803312-005A

SDG:

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

1,2-Dibromoethane (EDB) 1.00 03/30/180.00415 0.0384 NDND 430697TO15SIM 20:32 BA

Tetrachloroethylene 1.00 03/30/180.0257 0.0678 0.150.990 430697TO15SIM 20:32 BA

1,1,1,2-Tetrachloroethane 1.00 03/30/180.00893 0.0344 NDND 430697TO15SIM 20:32 BA

Chlorobenzene 1.00 03/30/180.00230 0.00460 0.010.0230 430697TO15SIM 20:32 BA

Ethyl Benzene 1.00 03/30/180.00234 0.0217 0.251.09 430697TO15SIM 20:32 BA

m,p-Xylene 1.00 03/30/180.00265 0.0434 0.883.82 430697TO15SIM 20:32 BA

Bromoform 1.00 03/30/180.0341 0.103 NDND 430697TO15SIM 20:32 BA

Styrene 1.00 03/30/180.00311 0.0213 0.110.486 430697TO15SIM 20:32 BA

1,1,2,2-tetrachloroethane 1.00 03/30/180.00234 0.0687 NDND 430697TO15SIM 20:32 BA

o-Xylene 1.00 03/30/180.00221 0.0217 0.231.01 430697TO15SIM 20:32 BA

4-Ethyl toluene 1.00 03/30/180.00344 0.0246 0.271.33 430697TO15SIM 20:32 BA

1,3,5-Trimethylbenzene 1.00 03/30/180.00354 0.0246 0.070.349 430697TO15SIM 20:32 BA

1,2,4-Trimethylbenzene 1.00 03/30/180.00335 0.0246 0.251.25 430697TO15SIM 20:32 BA

1,3-Dichlorobenzene 1.00 03/30/180.00565 0.0301 0.020.0902 430697TO15SIM 20:32 BA

1,4-Dichlorobenzene 1.00 03/30/180.00517 0.0301 0.050.325 430697TO15SIM 20:32 BA

1,2-Dichlorobenzene 1.00 03/30/180.00565 0.0301 0.010.0841 430697TO15SIM 20:32 BA

1,2,4-Trichlorobenzene 1.00 03/30/180.0665 0.0371 0.010.0965 430697TO15SIM 20:32 BA

Naphthalene 1.00 03/30/180.00472 0.0262 0.060.330 430697TO15SIM 20:32 BA

Hexachlorobutadiene 1.00 03/30/180.106 0.213 NDND 430697TO15SIM 20:32 BA

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Chloromethane 10.00 03/30/180.0865 0.207 2.264.68 430697TO15SIM 21:22 BA

2-Propanol (Isopropyl Alcohol) 10.00 03/30/180.155 1.23 1.634.01 430697TO15SIM 21:22 BA

tert-Butanol 10.00 03/30/180.115 0.303 0.391.18 430697TO15SIM 21:22 BA

2-Butanone (MEK) 10.00 03/30/180.0271 0.148 0.892.63 430697TO15SIM 21:22 BA

Ethyl Acetate 10.00 03/30/180.0331 0.180 0.622.23 430697TO15SIM 21:22 BA

Tetrahydrofuran 10.00 03/30/180.286 0.590 0.772.27 430697TO15SIM 21:22 BA

Toluene 10.00 03/30/180.0415 0.189 1.184.45 430697TO15SIM 21:22 BA

Page 16 of 24Total Page Count: 24

Page 135: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Corrected PSI :

Received PSI : 12.5

Certified Clean WO # :

Collection Volume (L):

1425Canister/Tube ID:

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 6:20

14121.001.000

282 S. Montgomery

Ambient 2

AirSample Matrix:

Lab Sample ID: 1803312-005A

SDG:

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

2-Hexanone 10.00 03/30/180.0890 0.205 0.321.31 430697TO15SIM 21:22 BA

Prep Batch ID: 1103926

Prep Batch Date/Time: 3/30/18 9:00:00AM

Prep Analyst: BALI

Prep Method: TO-15SIM-P

Parameters: Q

Results

ug/m3

PQL

ug/m3

MDL

ug/m3

DF

Analyzed

Analysis

Method

Results

ppbv Time By

Analytical

Batch

Acetone 20.00 03/30/180.514 0.952 8.6120.5 430697TO15SIM 22:11 BA

Page 17 of 24Total Page Count: 24

Page 136: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

ETO15Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ppbv

1103867TO15-P

Air 430642

1803312

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.32 0.50Dichlorodifluoromethane ND

0.13 5.01,1-Difluoroethane ND

4.0 8.01,2-Dichlorotetrafluoroethane ND

0.99 2.0Chloromethane ND

0.088 0.50Vinyl Chloride ND

0.15 0.501,3-Butadiene ND

0.17 0.50Bromomethane ND

0.31 0.50Chloroethane ND

0.099 0.50Trichlorofluoromethane ND

0.21 0.501,1-Dichloroethene ND

0.13 0.50Freon 113 ND

0.12 0.50Carbon Disulfide ND

0.52 5.02-Propanol (Isopropyl Alcohol) ND

0.20 3.0Methylene Chloride ND

0.17 5.0Acetone 0.31

0.12 0.50trans-1,2-Dichloroethene ND

0.13 0.50Hexane ND

0.12 0.50MTBE ND

0.20 0.50tert-Butanol ND

0.18 0.50Diisopropyl ether (DIPE) ND

0.13 0.501,1-Dichloroethane ND

0.078 0.50ETBE ND

0.21 0.50cis-1,2-Dichloroethene ND

0.20 0.50Chloroform ND

0.22 0.50Vinyl Acetate ND

0.18 0.50Carbon Tetrachloride ND

0.15 0.501,1,1-Trichloroethane ND

0.13 0.502-Butanone (MEK) ND

0.13 0.50Ethyl Acetate ND

0.15 0.50Tetrahydrofuran ND

0.14 0.50Benzene ND

0.16 0.50TAME ND

0.10 0.501,2-Dichloroethane (EDC) ND

0.15 0.50Trichloroethylene ND

0.17 0.501,2-Dichloropropane ND

0.11 0.50Bromodichloromethane ND

0.50 1.01,4-Dioxane ND

0.23 0.50trans-1,3-Dichloropropene ND

0.20 0.50Toluene ND

0.18 0.504-Methyl-2-Pentanone (MIBK) ND

0.093 0.50cis-1,3-Dichloropropene ND

0.22 0.50Tetrachloroethylene ND

Page 18 of 24Total Page Count: 24

Page 137: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

ETO15Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:ppbv

1103867TO15-P

Air 430642

1803312

3/29/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.11 0.501,1,2-Trichloroethane ND

0.13 0.50Dibromochloromethane ND

0.096 0.501,2-Dibromoethane (EDB) ND

0.16 0.502-Hexanone ND

0.15 0.50Ethyl Benzene ND

0.13 0.50Chlorobenzene ND

0.12 0.501,1,1,2-Tetrachloroethane ND

0.23 0.50m,p-Xylene ND

0.070 0.50o-Xylene ND

0.11 0.50Styrene ND

0.13 0.50Bromoform ND

0.12 0.501,1,2,2-Tetrachloroethane ND

0.11 0.504-Ethyl Toluene ND

0.061 0.501,3,5-Trimethylbenzene ND

0.12 0.501,2,4-Trimethylbenzene ND

0.12 0.501,4-Dichlorobenzene ND

0.22 0.501,3-Dichlorobenzene ND

0.18 0.501,2-Dichlorobenzene ND

0.17 0.50Hexachlorobutadiene ND

0.29 0.501,2,4-Trichlorobenzene ND

0.24 0.50Naphthalene ND

(S) 4-Bromofluorobenzene 89

Page 19 of 24Total Page Count: 24

Page 138: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/29/18 Prep Batch:

Analytical

Batch:

TO15-P 1103867

3/29/2018ETO15 430642

ppbv

1803312

Air

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.50 8.000.21 5.03 3065 - 1351,1-Dichloroethene 117 111ND

0.50 8.000.14 2.03 3065 - 135Benzene 99.5 97.4ND

0.50 8.000.15 0.513 3065 - 135Trichloroethylene 97.7 97.3ND

0.50 8.000.20 1.05 3065 - 135Toluene 96.1 95.1ND

0.50 8.000.13 0.788 3065 - 135Chlorobenzene 95.5 94.8ND

20.0 50 - 150(S) 4-Bromofluorobenzene 83.9 87.7

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:

TO-15SIM-P 1103926

3/30/2018ETO15 430697

ppbv

1803312

Air

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.0050 0.1000.011 0.000 3065 - 1351,1-Dichloroethene 93.0 93.0

0.020 0.1000.0021 3.05 3065 - 135Benzene 100 97.0

0.0050 0.1000.0011 0.000 3065 - 135Trichloroethylene 101 101

0.0050 0.1000.00050 0.948 3065 - 135Toluene 106 105

0.0050 0.1000.0017 11.3 3065 - 135Chlorobenzene 92.0 103

Page 20 of 24Total Page Count: 24

Page 139: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Laboratory Qualifiers and Definitions

Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte

concentration is greater than zero

Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and

analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc)

Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document

laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample

(sample duplicate, LCSD, MSD)

Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample

processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can

be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factorsand/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates

Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, butwhich is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen methodof analysis

Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined

compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention timeand primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg(equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % (

equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface)

B - Indicates when the analyte is found in the associated method or preparation blank

D - Surrogate is not recoverable due to the necessary dilution of the sample

E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted)

Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded

J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative

NA - Not Analyzed

N/A - Not Applicable

ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the

spike concentration added

R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts

S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a

case narrative

X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Page 21 of 24Total Page Count: 24

Page 140: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Sample Receipt Checklist

Client Name: Engeo (San Ramon)

Project Name: 282 S. Montgomery

Work Order No.: 1803312

Date and Time Received: 3/29/2018 5:40:00PM

Received By: HU

Physically Logged By: Katherene Evans

Carrier Name: Client Drop Off

Checklist Completed By: Katherene Evans

Summas rec'd at ambient temperature

Comments:

Chain of Custody (COC) Information

Shipping Container/Cooler In Good Condition?

Custody seals intact on shipping container/cooler?

Custody seals intact on sample bottles?

Chain of custody present?

Chain of custody signed when relinquished and received?

Chain of custody agrees with sample labels?

Samples in proper container/bottle?

Sufficient sample volume for indicated test?

All samples received within holding time?

Container/Temp Blank temperature in compliance?

Water-VOA vials have zero headspace?

Water-pH acceptable upon receipt?

Temperature:

Yes

Not Present

Not Present

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Samples containers intact? Yes

°C

Sample Receipt Information

Sample Preservation and Hold Time (HT) Information

pH Checked by: na pH Adjusted by: na

25.0

Page 22 of 24Total Page Count: 24

Page 141: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Login Summary Report

Report Due Date:

3/29/2018

IIEngeo (San Ramon)TL5123

282 S. Montgomery

14121.001.000

4/3/2018

TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:

3 Day Std:3

5:40 pm

1803312Work Order # :

SubbedRequested

Tests

Test

On Hold

Sample

On Hold

Scheduled

Disposal

MatrixCollection

Date/Time

Client

Sample ID

WO Sample ID

CW-SG1803312-001A Air03/29/18 9:50

VOC_A_TO15

SG91803312-002A Air03/29/18 11:15

VOC_A_TO15

SG121803312-003A Air03/29/18 11:30

VOC_A_TO15

Ambient 11803312-004A Air03/29/18

VOC_A_TO15SIM

Ambient 21803312-005A Air03/29/18 6:20

VOC_A_TO15SIM

Page 23 of 24Total Page Count: 24

Page 142: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Page 24 of 24Total Page Count: 24

Page 143: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Engeo (San Ramon)

2010 Crow Canyon Place,#250

San Ramon, California 94583

Tel: (925) 866-9000

Fax: (925) 866-0199

RE: 282 S. Montgomery

Torrent Laboratory, Inc. received 16 sample(s) on March 29, 2018 for the analyses presented in the following Report.

Dear Divya Bhargava:

Work Order No.: 1803314

All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date

April 03, 2018

Patti L Sandrock

QA Officer

Page 1 of 49Total Page Count: 49

Page 144: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Date: 4/3/2018

Client: Engeo (San Ramon)

Project: 282 S. Montgomery

Work Order: 1803314

CASE NARRATIVE

No issues encountered with the receiving, preparation, analysis or reporting of the resultsassociated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or fieldblank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Analytical, Inc.

Page 2 of 49Total Page Count: 49

Page 145: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/29/18

Date Reported: 04/03/18

Sample Result Summary

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg13.3101.81SW8260B

Tetrachloroethylene ug/Kg64.9101.71SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg56.4101.81SW8260B

Tetrachloroethylene ug/Kg189101.71SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg45.0101.81SW8260B

Tetrachloroethylene ug/Kg132101.71SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg1260508.35SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg77.0254.62.5SW8260B

Tetrachloroethylene ug/Kg352254.22.5SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg122509.15SW8260B

Tetrachloroethylene ug/Kg795508.35SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg453508.35SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg131101.81SW8260B

Tetrachloroethylene ug/Kg283101.71SW8260B

Page 3 of 49Total Page Count: 49

Page 146: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/29/18

Date Reported: 04/03/18

Sample Result Summary

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg42.3101.81SW8260B

Tetrachloroethylene ug/Kg73.3101.71SW8260B

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Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg36.5101.81SW8260B

Tetrachloroethylene ug/Kg50.6101.71SW8260B

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Parameters: PQLMDL UnitResultsDFAnalysis

Method

Tetrachloroethylene ug/Kg441508.35SW8260B

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Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg91.6509.15SW8260B

Tetrachloroethylene ug/Kg167508.35SW8260B

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Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg34.0101.81SW8260B

Tetrachloroethylene ug/Kg54.6101.71SW8260B

[email protected]'

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg43.2101.81SW8260B

Tetrachloroethylene ug/Kg21.3101.71SW8260B

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Parameters: PQLMDL UnitResultsDFAnalysis

Method

Toluene ug/Kg42.7101.81SW8260B

Tetrachloroethylene ug/Kg38.1101.71SW8260B

1803314-016CW-GW

Parameters: PQLMDL UnitResultsDFAnalysis

Method

1,1-Dichloropropene ug/L0.540.750.281.5SW8260B

Toluene ug/L0.380.750.221.5SW8260B

Page 4 of 49Total Page Count: 49

Page 147: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 8:20

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-001A

SDG:

Prep Batch ID: 1103916

Prep Batch Date/Time: 3/30/18 10:57:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/181.2 101 ug/Kg 430683SW8260B 19:28 BP

NDChloromethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

NDVinyl Chloride 03/30/182.0 101 ug/Kg 430683SW8260B 19:28 BP

NDBromomethane 03/30/182.7 101 ug/Kg 430683SW8260B 19:28 BP

NDChloroethane 03/30/183.0 101 ug/Kg 430683SW8260B 19:28 BP

NDTrichlorofluoromethane 03/30/182.1 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1-Dichloroethene 03/30/182.0 101 ug/Kg 430683SW8260B 19:28 BP

NDFreon 113 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

NDMethylene Chloride 03/30/187.1 101 ug/Kg 430683SW8260B 19:28 BP

NDtrans-1,2-Dichloroethene 03/30/182.1 101 ug/Kg 430683SW8260B 19:28 BP

NDMTBE 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

NDtert-Butanol 03/30/1812 501 ug/Kg 430683SW8260B 19:28 BP

NDDiisopropyl ether (DIPE) 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1-Dichloroethane 03/30/182.2 101 ug/Kg 430683SW8260B 19:28 BP

NDETBE 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

NDcis-1,2-Dichloroethene 03/30/182.2 101 ug/Kg 430683SW8260B 19:28 BP

ND2,2-Dichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

NDBromochloromethane 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

NDChloroform 03/30/182.4 101 ug/Kg 430683SW8260B 19:28 BP

NDCarbon Tetrachloride 03/30/182.1 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1,1-Trichloroethane 03/30/182.1 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1-Dichloropropene 03/30/182.0 101 ug/Kg 430683SW8260B 19:28 BP

NDBenzene 03/30/182.2 101 ug/Kg 430683SW8260B 19:28 BP

NDTAME 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2-Dichloroethane 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

NDTrichloroethylene 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

NDDibromomethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2-Dichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

NDBromodichloromethane 03/30/182.0 101 ug/Kg 430683SW8260B 19:28 BP

NDcis-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

13.3Toluene 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

64.9Tetrachloroethylene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

NDtrans-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1,2-Trichloroethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

NDDibromochloromethane 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

ND1,3-Dichloropropane 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

Page 5 of 49Total Page Count: 49

Page 148: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 8:20

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-001A

SDG:

Prep Batch ID: 1103916

Prep Batch Date/Time: 3/30/18 10:57:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

NDChlorobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

NDEthyl Benzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1,1,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

NDm,p-Xylene 03/30/183.2 101 ug/Kg 430683SW8260B 19:28 BP

NDo-Xylene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

NDStyrene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

NDBromoform 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

NDIsopropyl Benzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

NDn-Propylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

NDBromobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

ND1,1,2,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

ND2-Chlorotoluene 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

ND1,3,5-Trimethylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2,3-Trichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 19:28 BP

ND4-Chlorotoluene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

NDtert-Butylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2,4-Trimethylbenzene 03/30/181.4 101 ug/Kg 430683SW8260B 19:28 BP

NDsec-Butyl Benzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:28 BP

NDp-Isopropyltoluene 03/30/181.5 101 ug/Kg 430683SW8260B 19:28 BP

ND1,3-Dichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

ND1,4-Dichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

NDn-Butylbenzene 03/30/181.5 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2-Dichlorobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2-Dibromo-3-Chloropropane 03/30/181.8 101 ug/Kg 430683SW8260B 19:28 BP

NDHexachlorobutadiene 03/30/181.4 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2,4-Trichlorobenzene 03/30/181.5 101 ug/Kg 430683SW8260B 19:28 BP

NDNaphthalene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

ND1,2,3-Trichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:28 BP

ND2-Butanone 03/30/182.3 101 ug/Kg 430683SW8260B 19:28 BP

97.0(S) Dibromofluoromethane 03/30/18% 430683SW8260B 19:28 BP59.8 - 148

99.8(S) Toluene-d8 03/30/18% 430683SW8260B 19:28 BP55.2 - 133

93.8(S) 4-Bromofluorobenzene 03/30/18% 430683SW8260B 19:28 BP55.8 - 141

Page 6 of 49Total Page Count: 49

Page 149: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 8:45

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-002A

SDG:

Prep Batch ID: 1103916

Prep Batch Date/Time: 3/30/18 10:57:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/181.2 101 ug/Kg 430683SW8260B 19:57 BP

NDChloromethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

NDVinyl Chloride 03/30/182.0 101 ug/Kg 430683SW8260B 19:57 BP

NDBromomethane 03/30/182.7 101 ug/Kg 430683SW8260B 19:57 BP

NDChloroethane 03/30/183.0 101 ug/Kg 430683SW8260B 19:57 BP

NDTrichlorofluoromethane 03/30/182.1 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1-Dichloroethene 03/30/182.0 101 ug/Kg 430683SW8260B 19:57 BP

NDFreon 113 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

NDMethylene Chloride 03/30/187.1 101 ug/Kg 430683SW8260B 19:57 BP

NDtrans-1,2-Dichloroethene 03/30/182.1 101 ug/Kg 430683SW8260B 19:57 BP

NDMTBE 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

NDtert-Butanol 03/30/1812 501 ug/Kg 430683SW8260B 19:57 BP

NDDiisopropyl ether (DIPE) 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1-Dichloroethane 03/30/182.2 101 ug/Kg 430683SW8260B 19:57 BP

NDETBE 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

NDcis-1,2-Dichloroethene 03/30/182.2 101 ug/Kg 430683SW8260B 19:57 BP

ND2,2-Dichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

NDBromochloromethane 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

NDChloroform 03/30/182.4 101 ug/Kg 430683SW8260B 19:57 BP

NDCarbon Tetrachloride 03/30/182.1 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1,1-Trichloroethane 03/30/182.1 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1-Dichloropropene 03/30/182.0 101 ug/Kg 430683SW8260B 19:57 BP

NDBenzene 03/30/182.2 101 ug/Kg 430683SW8260B 19:57 BP

NDTAME 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2-Dichloroethane 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

NDTrichloroethylene 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

NDDibromomethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2-Dichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

NDBromodichloromethane 03/30/182.0 101 ug/Kg 430683SW8260B 19:57 BP

NDcis-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

56.4Toluene 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

189Tetrachloroethylene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

NDtrans-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1,2-Trichloroethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

NDDibromochloromethane 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

ND1,3-Dichloropropane 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

Page 7 of 49Total Page Count: 49

Page 150: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 8:45

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-002A

SDG:

Prep Batch ID: 1103916

Prep Batch Date/Time: 3/30/18 10:57:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

NDChlorobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

NDEthyl Benzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1,1,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

NDm,p-Xylene 03/30/183.2 101 ug/Kg 430683SW8260B 19:57 BP

NDo-Xylene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

NDStyrene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

NDBromoform 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

NDIsopropyl Benzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

NDn-Propylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

NDBromobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

ND1,1,2,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

ND2-Chlorotoluene 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

ND1,3,5-Trimethylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2,3-Trichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 19:57 BP

ND4-Chlorotoluene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

NDtert-Butylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2,4-Trimethylbenzene 03/30/181.4 101 ug/Kg 430683SW8260B 19:57 BP

NDsec-Butyl Benzene 03/30/181.6 101 ug/Kg 430683SW8260B 19:57 BP

NDp-Isopropyltoluene 03/30/181.5 101 ug/Kg 430683SW8260B 19:57 BP

ND1,3-Dichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

ND1,4-Dichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

NDn-Butylbenzene 03/30/181.5 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2-Dichlorobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2-Dibromo-3-Chloropropane 03/30/181.8 101 ug/Kg 430683SW8260B 19:57 BP

NDHexachlorobutadiene 03/30/181.4 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2,4-Trichlorobenzene 03/30/181.5 101 ug/Kg 430683SW8260B 19:57 BP

NDNaphthalene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

ND1,2,3-Trichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 19:57 BP

ND2-Butanone 03/30/182.3 101 ug/Kg 430683SW8260B 19:57 BP

107(S) Dibromofluoromethane 03/30/18% 430683SW8260B 19:57 BP59.8 - 148

107(S) Toluene-d8 03/30/18% 430683SW8260B 19:57 BP55.2 - 133

90.1(S) 4-Bromofluorobenzene 03/30/18% 430683SW8260B 19:57 BP55.8 - 141

Page 8 of 49Total Page Count: 49

Page 151: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 8:55

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-003A

SDG:

Prep Batch ID: 1103916

Prep Batch Date/Time: 3/30/18 10:57:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 03/30/181.2 101 ug/Kg 430683SW8260B 20:27 BP

NDChloromethane 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

NDVinyl Chloride 03/30/182.0 101 ug/Kg 430683SW8260B 20:27 BP

NDBromomethane 03/30/182.7 101 ug/Kg 430683SW8260B 20:27 BP

NDChloroethane 03/30/183.0 101 ug/Kg 430683SW8260B 20:27 BP

NDTrichlorofluoromethane 03/30/182.1 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1-Dichloroethene 03/30/182.0 101 ug/Kg 430683SW8260B 20:27 BP

NDFreon 113 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

NDMethylene Chloride 03/30/187.1 101 ug/Kg 430683SW8260B 20:27 BP

NDtrans-1,2-Dichloroethene 03/30/182.1 101 ug/Kg 430683SW8260B 20:27 BP

NDMTBE 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

NDtert-Butanol 03/30/1812 501 ug/Kg 430683SW8260B 20:27 BP

NDDiisopropyl ether (DIPE) 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1-Dichloroethane 03/30/182.2 101 ug/Kg 430683SW8260B 20:27 BP

NDETBE 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

NDcis-1,2-Dichloroethene 03/30/182.2 101 ug/Kg 430683SW8260B 20:27 BP

ND2,2-Dichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

NDBromochloromethane 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

NDChloroform 03/30/182.4 101 ug/Kg 430683SW8260B 20:27 BP

NDCarbon Tetrachloride 03/30/182.1 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1,1-Trichloroethane 03/30/182.1 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1-Dichloropropene 03/30/182.0 101 ug/Kg 430683SW8260B 20:27 BP

NDBenzene 03/30/182.2 101 ug/Kg 430683SW8260B 20:27 BP

NDTAME 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2-Dichloroethane 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

NDTrichloroethylene 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

NDDibromomethane 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2-Dichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

NDBromodichloromethane 03/30/182.0 101 ug/Kg 430683SW8260B 20:27 BP

NDcis-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

45.0Toluene 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

132Tetrachloroethylene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

NDtrans-1,3-Dichloropropene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1,2-Trichloroethane 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

NDDibromochloromethane 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

ND1,3-Dichloropropane 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

Page 9 of 49Total Page Count: 49

Page 152: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 8:55

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-003A

SDG:

Prep Batch ID: 1103916

Prep Batch Date/Time: 3/30/18 10:57:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

NDChlorobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

NDEthyl Benzene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1,1,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

NDm,p-Xylene 03/30/183.2 101 ug/Kg 430683SW8260B 20:27 BP

NDo-Xylene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

NDStyrene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

NDBromoform 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

NDIsopropyl Benzene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

NDn-Propylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

NDBromobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

ND1,1,2,2-Tetrachloroethane 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

ND2-Chlorotoluene 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

ND1,3,5-Trimethylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2,3-Trichloropropane 03/30/181.9 101 ug/Kg 430683SW8260B 20:27 BP

ND4-Chlorotoluene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

NDtert-Butylbenzene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2,4-Trimethylbenzene 03/30/181.4 101 ug/Kg 430683SW8260B 20:27 BP

NDsec-Butyl Benzene 03/30/181.6 101 ug/Kg 430683SW8260B 20:27 BP

NDp-Isopropyltoluene 03/30/181.5 101 ug/Kg 430683SW8260B 20:27 BP

ND1,3-Dichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

ND1,4-Dichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

NDn-Butylbenzene 03/30/181.5 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2-Dichlorobenzene 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2-Dibromo-3-Chloropropane 03/30/181.8 101 ug/Kg 430683SW8260B 20:27 BP

NDHexachlorobutadiene 03/30/181.4 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2,4-Trichlorobenzene 03/30/181.5 101 ug/Kg 430683SW8260B 20:27 BP

NDNaphthalene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

ND1,2,3-Trichlorobenzene 03/30/181.7 101 ug/Kg 430683SW8260B 20:27 BP

ND2-Butanone 03/30/182.3 101 ug/Kg 430683SW8260B 20:27 BP

107(S) Dibromofluoromethane 03/30/18% 430683SW8260B 20:27 BP59.8 - 148

104(S) Toluene-d8 03/30/18% 430683SW8260B 20:27 BP55.2 - 133

99.5(S) 4-Bromofluorobenzene 03/30/18% 430683SW8260B 20:27 BP55.8 - 141

Page 10 of 49Total Page Count: 49

Page 153: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:20

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-004A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/186.1 505 ug/Kg 430704SW8260B 6:14 BP

NDChloromethane 04/03/189.1 505 ug/Kg 430704SW8260B 6:14 BP

NDVinyl Chloride 04/03/1810 505 ug/Kg 430704SW8260B 6:14 BP

NDBromomethane 04/03/1813 505 ug/Kg 430704SW8260B 6:14 BP

NDChloroethane 04/03/1815 505 ug/Kg 430704SW8260B 6:14 BP

NDTrichlorofluoromethane 04/03/1810 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 6:14 BP

NDFreon 113 04/03/189.4 505 ug/Kg 430704SW8260B 6:14 BP

NDMethylene Chloride 04/03/1836 505 ug/Kg 430704SW8260B 6:14 BP

NDtrans-1,2-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 6:14 BP

NDMTBE 04/03/1812 505 ug/Kg 430704SW8260B 6:14 BP

NDtert-Butanol 04/03/1858 2505 ug/Kg 430704SW8260B 6:14 BP

NDDiisopropyl ether (DIPE) 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1-Dichloroethane 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

NDETBE 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

NDcis-1,2-Dichloroethene 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

ND2,2-Dichloropropane 04/03/189.6 505 ug/Kg 430704SW8260B 6:14 BP

NDBromochloromethane 04/03/1812 505 ug/Kg 430704SW8260B 6:14 BP

NDChloroform 04/03/1812 505 ug/Kg 430704SW8260B 6:14 BP

NDCarbon Tetrachloride 04/03/1810 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1,1-Trichloroethane 04/03/1810 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1-Dichloropropene 04/03/189.9 505 ug/Kg 430704SW8260B 6:14 BP

NDBenzene 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

NDTAME 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2-Dichloroethane 04/03/1812 505 ug/Kg 430704SW8260B 6:14 BP

NDTrichloroethylene 04/03/189.0 505 ug/Kg 430704SW8260B 6:14 BP

NDDibromomethane 04/03/189.2 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2-Dichloropropane 04/03/189.3 505 ug/Kg 430704SW8260B 6:14 BP

NDBromodichloromethane 04/03/189.8 505 ug/Kg 430704SW8260B 6:14 BP

NDcis-1,3-Dichloropropene 04/03/188.0 505 ug/Kg 430704SW8260B 6:14 BP

NDToluene 04/03/189.1 505 ug/Kg 430704SW8260B 6:14 BP

E1260Tetrachloroethylene 04/03/188.3 505 ug/Kg 430704SW8260B 6:14 BP

NDtrans-1,3-Dichloropropene 04/03/188.2 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1,2-Trichloroethane 04/03/189.2 505 ug/Kg 430704SW8260B 6:14 BP

NDDibromochloromethane 04/03/189.4 505 ug/Kg 430704SW8260B 6:14 BP

ND1,3-Dichloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 6:14 BP

Page 11 of 49Total Page Count: 49

Page 154: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:20

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-004A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/189.0 505 ug/Kg 430704SW8260B 6:14 BP

NDChlorobenzene 04/03/189.1 505 ug/Kg 430704SW8260B 6:14 BP

NDEthyl Benzene 04/03/188.3 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1,1,2-Tetrachloroethane 04/03/189.7 505 ug/Kg 430704SW8260B 6:14 BP

NDm,p-Xylene 04/03/1816 505 ug/Kg 430704SW8260B 6:14 BP

NDo-Xylene 04/03/188.6 505 ug/Kg 430704SW8260B 6:14 BP

NDStyrene 04/03/188.2 505 ug/Kg 430704SW8260B 6:14 BP

NDBromoform 04/03/188.4 505 ug/Kg 430704SW8260B 6:14 BP

NDIsopropyl Benzene 04/03/188.1 505 ug/Kg 430704SW8260B 6:14 BP

NDn-Propylbenzene 04/03/187.8 505 ug/Kg 430704SW8260B 6:14 BP

NDBromobenzene 04/03/188.8 505 ug/Kg 430704SW8260B 6:14 BP

ND1,1,2,2-Tetrachloroethane 04/03/189.6 505 ug/Kg 430704SW8260B 6:14 BP

ND2-Chlorotoluene 04/03/188.8 505 ug/Kg 430704SW8260B 6:14 BP

ND1,3,5-Trimethylbenzene 04/03/187.9 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2,3-Trichloropropane 04/03/189.5 505 ug/Kg 430704SW8260B 6:14 BP

ND4-Chlorotoluene 04/03/188.2 505 ug/Kg 430704SW8260B 6:14 BP

NDtert-Butylbenzene 04/03/188.1 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2,4-Trimethylbenzene 04/03/186.8 505 ug/Kg 430704SW8260B 6:14 BP

NDsec-Butyl Benzene 04/03/187.8 505 ug/Kg 430704SW8260B 6:14 BP

NDp-Isopropyltoluene 04/03/187.3 505 ug/Kg 430704SW8260B 6:14 BP

ND1,3-Dichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 6:14 BP

ND1,4-Dichlorobenzene 04/03/188.6 505 ug/Kg 430704SW8260B 6:14 BP

NDn-Butylbenzene 04/03/187.3 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2-Dichlorobenzene 04/03/188.9 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2-Dibromo-3-Chloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 6:14 BP

NDHexachlorobutadiene 04/03/186.8 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2,4-Trichlorobenzene 04/03/187.4 505 ug/Kg 430704SW8260B 6:14 BP

NDNaphthalene 04/03/188.4 505 ug/Kg 430704SW8260B 6:14 BP

ND1,2,3-Trichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 6:14 BP

ND2-Butanone 04/03/1811 505 ug/Kg 430704SW8260B 6:14 BP

129(S) Dibromofluoromethane 04/03/18% 430704SW8260B 6:14 BP59.8 - 148

114(S) Toluene-d8 04/03/18% 430704SW8260B 6:14 BP55.2 - 133

92.5(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 6:14 BP55.8 - 141

NOTE: E - Estimated value. The amount exceeds the calibration range but within linear working range of the instrument.

Page 12 of 49Total Page Count: 49

Page 155: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:25

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-005A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/183.1 252.5 ug/Kg 430704SW8260B 6:43 BP

NDChloromethane 04/03/184.6 252.5 ug/Kg 430704SW8260B 6:43 BP

NDVinyl Chloride 04/03/185.1 252.5 ug/Kg 430704SW8260B 6:43 BP

NDBromomethane 04/03/186.7 252.5 ug/Kg 430704SW8260B 6:43 BP

NDChloroethane 04/03/187.5 252.5 ug/Kg 430704SW8260B 6:43 BP

NDTrichlorofluoromethane 04/03/185.2 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1-Dichloroethene 04/03/185.1 252.5 ug/Kg 430704SW8260B 6:43 BP

NDFreon 113 04/03/184.7 252.5 ug/Kg 430704SW8260B 6:43 BP

NDMethylene Chloride 04/03/1818 252.5 ug/Kg 430704SW8260B 6:43 BP

NDtrans-1,2-Dichloroethene 04/03/185.2 252.5 ug/Kg 430704SW8260B 6:43 BP

NDMTBE 04/03/185.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDtert-Butanol 04/03/1829 1302.5 ug/Kg 430704SW8260B 6:43 BP

NDDiisopropyl ether (DIPE) 04/03/185.7 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1-Dichloroethane 04/03/185.5 252.5 ug/Kg 430704SW8260B 6:43 BP

NDETBE 04/03/185.7 252.5 ug/Kg 430704SW8260B 6:43 BP

NDcis-1,2-Dichloroethene 04/03/185.6 252.5 ug/Kg 430704SW8260B 6:43 BP

ND2,2-Dichloropropane 04/03/184.8 252.5 ug/Kg 430704SW8260B 6:43 BP

NDBromochloromethane 04/03/185.8 252.5 ug/Kg 430704SW8260B 6:43 BP

NDChloroform 04/03/185.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDCarbon Tetrachloride 04/03/185.1 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1,1-Trichloroethane 04/03/185.2 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1-Dichloropropene 04/03/184.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDBenzene 04/03/185.6 252.5 ug/Kg 430704SW8260B 6:43 BP

NDTAME 04/03/185.7 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2-Dichloroethane 04/03/185.8 252.5 ug/Kg 430704SW8260B 6:43 BP

NDTrichloroethylene 04/03/184.5 252.5 ug/Kg 430704SW8260B 6:43 BP

NDDibromomethane 04/03/184.6 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2-Dichloropropane 04/03/184.7 252.5 ug/Kg 430704SW8260B 6:43 BP

NDBromodichloromethane 04/03/184.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDcis-1,3-Dichloropropene 04/03/184.0 252.5 ug/Kg 430704SW8260B 6:43 BP

77.0Toluene 04/03/184.6 252.5 ug/Kg 430704SW8260B 6:43 BP

352Tetrachloroethylene 04/03/184.2 252.5 ug/Kg 430704SW8260B 6:43 BP

NDtrans-1,3-Dichloropropene 04/03/184.1 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1,2-Trichloroethane 04/03/184.6 252.5 ug/Kg 430704SW8260B 6:43 BP

NDDibromochloromethane 04/03/184.7 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,3-Dichloropropane 04/03/184.6 252.5 ug/Kg 430704SW8260B 6:43 BP

Page 13 of 49Total Page Count: 49

Page 156: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:25

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-005A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/184.5 252.5 ug/Kg 430704SW8260B 6:43 BP

NDChlorobenzene 04/03/184.5 252.5 ug/Kg 430704SW8260B 6:43 BP

NDEthyl Benzene 04/03/184.1 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1,1,2-Tetrachloroethane 04/03/184.8 252.5 ug/Kg 430704SW8260B 6:43 BP

NDm,p-Xylene 04/03/187.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDo-Xylene 04/03/184.3 252.5 ug/Kg 430704SW8260B 6:43 BP

NDStyrene 04/03/184.1 252.5 ug/Kg 430704SW8260B 6:43 BP

NDBromoform 04/03/184.2 252.5 ug/Kg 430704SW8260B 6:43 BP

NDIsopropyl Benzene 04/03/184.0 252.5 ug/Kg 430704SW8260B 6:43 BP

NDn-Propylbenzene 04/03/183.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDBromobenzene 04/03/184.4 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,1,2,2-Tetrachloroethane 04/03/184.8 252.5 ug/Kg 430704SW8260B 6:43 BP

ND2-Chlorotoluene 04/03/184.4 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,3,5-Trimethylbenzene 04/03/183.9 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2,3-Trichloropropane 04/03/184.8 252.5 ug/Kg 430704SW8260B 6:43 BP

ND4-Chlorotoluene 04/03/184.1 252.5 ug/Kg 430704SW8260B 6:43 BP

NDtert-Butylbenzene 04/03/184.1 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2,4-Trimethylbenzene 04/03/183.4 252.5 ug/Kg 430704SW8260B 6:43 BP

NDsec-Butyl Benzene 04/03/183.9 252.5 ug/Kg 430704SW8260B 6:43 BP

NDp-Isopropyltoluene 04/03/183.7 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,3-Dichlorobenzene 04/03/184.2 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,4-Dichlorobenzene 04/03/184.3 252.5 ug/Kg 430704SW8260B 6:43 BP

NDn-Butylbenzene 04/03/183.6 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2-Dichlorobenzene 04/03/184.4 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2-Dibromo-3-Chloropropane 04/03/184.6 252.5 ug/Kg 430704SW8260B 6:43 BP

NDHexachlorobutadiene 04/03/183.4 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2,4-Trichlorobenzene 04/03/183.7 252.5 ug/Kg 430704SW8260B 6:43 BP

NDNaphthalene 04/03/184.2 252.5 ug/Kg 430704SW8260B 6:43 BP

ND1,2,3-Trichlorobenzene 04/03/184.2 252.5 ug/Kg 430704SW8260B 6:43 BP

ND2-Butanone 04/03/185.7 252.5 ug/Kg 430704SW8260B 6:43 BP

124(S) Dibromofluoromethane 04/03/18% 430704SW8260B 6:43 BP59.8 - 148

114(S) Toluene-d8 04/03/18% 430704SW8260B 6:43 BP55.2 - 133

92.9(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 6:43 BP55.8 - 141

Page 14 of 49Total Page Count: 49

Page 157: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:46

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-006A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/186.1 505 ug/Kg 430704SW8260B 7:13 BP

NDChloromethane 04/03/189.1 505 ug/Kg 430704SW8260B 7:13 BP

NDVinyl Chloride 04/03/1810 505 ug/Kg 430704SW8260B 7:13 BP

NDBromomethane 04/03/1813 505 ug/Kg 430704SW8260B 7:13 BP

NDChloroethane 04/03/1815 505 ug/Kg 430704SW8260B 7:13 BP

NDTrichlorofluoromethane 04/03/1810 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 7:13 BP

NDFreon 113 04/03/189.4 505 ug/Kg 430704SW8260B 7:13 BP

NDMethylene Chloride 04/03/1836 505 ug/Kg 430704SW8260B 7:13 BP

NDtrans-1,2-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 7:13 BP

NDMTBE 04/03/1812 505 ug/Kg 430704SW8260B 7:13 BP

NDtert-Butanol 04/03/1858 2505 ug/Kg 430704SW8260B 7:13 BP

NDDiisopropyl ether (DIPE) 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1-Dichloroethane 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

NDETBE 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

NDcis-1,2-Dichloroethene 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

ND2,2-Dichloropropane 04/03/189.6 505 ug/Kg 430704SW8260B 7:13 BP

NDBromochloromethane 04/03/1812 505 ug/Kg 430704SW8260B 7:13 BP

NDChloroform 04/03/1812 505 ug/Kg 430704SW8260B 7:13 BP

NDCarbon Tetrachloride 04/03/1810 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1,1-Trichloroethane 04/03/1810 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1-Dichloropropene 04/03/189.9 505 ug/Kg 430704SW8260B 7:13 BP

NDBenzene 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

NDTAME 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2-Dichloroethane 04/03/1812 505 ug/Kg 430704SW8260B 7:13 BP

NDTrichloroethylene 04/03/189.0 505 ug/Kg 430704SW8260B 7:13 BP

NDDibromomethane 04/03/189.2 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2-Dichloropropane 04/03/189.3 505 ug/Kg 430704SW8260B 7:13 BP

NDBromodichloromethane 04/03/189.8 505 ug/Kg 430704SW8260B 7:13 BP

NDcis-1,3-Dichloropropene 04/03/188.0 505 ug/Kg 430704SW8260B 7:13 BP

122Toluene 04/03/189.1 505 ug/Kg 430704SW8260B 7:13 BP

795Tetrachloroethylene 04/03/188.3 505 ug/Kg 430704SW8260B 7:13 BP

NDtrans-1,3-Dichloropropene 04/03/188.2 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1,2-Trichloroethane 04/03/189.2 505 ug/Kg 430704SW8260B 7:13 BP

NDDibromochloromethane 04/03/189.4 505 ug/Kg 430704SW8260B 7:13 BP

ND1,3-Dichloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 7:13 BP

Page 15 of 49Total Page Count: 49

Page 158: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:46

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-006A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/189.0 505 ug/Kg 430704SW8260B 7:13 BP

NDChlorobenzene 04/03/189.1 505 ug/Kg 430704SW8260B 7:13 BP

NDEthyl Benzene 04/03/188.3 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1,1,2-Tetrachloroethane 04/03/189.7 505 ug/Kg 430704SW8260B 7:13 BP

NDm,p-Xylene 04/03/1816 505 ug/Kg 430704SW8260B 7:13 BP

NDo-Xylene 04/03/188.6 505 ug/Kg 430704SW8260B 7:13 BP

NDStyrene 04/03/188.2 505 ug/Kg 430704SW8260B 7:13 BP

NDBromoform 04/03/188.4 505 ug/Kg 430704SW8260B 7:13 BP

NDIsopropyl Benzene 04/03/188.1 505 ug/Kg 430704SW8260B 7:13 BP

NDn-Propylbenzene 04/03/187.8 505 ug/Kg 430704SW8260B 7:13 BP

NDBromobenzene 04/03/188.8 505 ug/Kg 430704SW8260B 7:13 BP

ND1,1,2,2-Tetrachloroethane 04/03/189.6 505 ug/Kg 430704SW8260B 7:13 BP

ND2-Chlorotoluene 04/03/188.8 505 ug/Kg 430704SW8260B 7:13 BP

ND1,3,5-Trimethylbenzene 04/03/187.9 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2,3-Trichloropropane 04/03/189.5 505 ug/Kg 430704SW8260B 7:13 BP

ND4-Chlorotoluene 04/03/188.2 505 ug/Kg 430704SW8260B 7:13 BP

NDtert-Butylbenzene 04/03/188.1 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2,4-Trimethylbenzene 04/03/186.8 505 ug/Kg 430704SW8260B 7:13 BP

NDsec-Butyl Benzene 04/03/187.8 505 ug/Kg 430704SW8260B 7:13 BP

NDp-Isopropyltoluene 04/03/187.3 505 ug/Kg 430704SW8260B 7:13 BP

ND1,3-Dichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 7:13 BP

ND1,4-Dichlorobenzene 04/03/188.6 505 ug/Kg 430704SW8260B 7:13 BP

NDn-Butylbenzene 04/03/187.3 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2-Dichlorobenzene 04/03/188.9 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2-Dibromo-3-Chloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 7:13 BP

NDHexachlorobutadiene 04/03/186.8 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2,4-Trichlorobenzene 04/03/187.4 505 ug/Kg 430704SW8260B 7:13 BP

NDNaphthalene 04/03/188.4 505 ug/Kg 430704SW8260B 7:13 BP

ND1,2,3-Trichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 7:13 BP

ND2-Butanone 04/03/1811 505 ug/Kg 430704SW8260B 7:13 BP

123(S) Dibromofluoromethane 04/03/18% 430704SW8260B 7:13 BP59.8 - 148

113(S) Toluene-d8 04/03/18% 430704SW8260B 7:13 BP55.2 - 133

94.8(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 7:13 BP55.8 - 141

Page 16 of 49Total Page Count: 49

Page 159: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:53

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-007A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/186.1 505 ug/Kg 430704SW8260B 7:42 BP

NDChloromethane 04/03/189.1 505 ug/Kg 430704SW8260B 7:42 BP

NDVinyl Chloride 04/03/1810 505 ug/Kg 430704SW8260B 7:42 BP

NDBromomethane 04/03/1813 505 ug/Kg 430704SW8260B 7:42 BP

NDChloroethane 04/03/1815 505 ug/Kg 430704SW8260B 7:42 BP

NDTrichlorofluoromethane 04/03/1810 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 7:42 BP

NDFreon 113 04/03/189.4 505 ug/Kg 430704SW8260B 7:42 BP

NDMethylene Chloride 04/03/1836 505 ug/Kg 430704SW8260B 7:42 BP

NDtrans-1,2-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 7:42 BP

NDMTBE 04/03/1812 505 ug/Kg 430704SW8260B 7:42 BP

NDtert-Butanol 04/03/1858 2505 ug/Kg 430704SW8260B 7:42 BP

NDDiisopropyl ether (DIPE) 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1-Dichloroethane 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

NDETBE 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

NDcis-1,2-Dichloroethene 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

ND2,2-Dichloropropane 04/03/189.6 505 ug/Kg 430704SW8260B 7:42 BP

NDBromochloromethane 04/03/1812 505 ug/Kg 430704SW8260B 7:42 BP

NDChloroform 04/03/1812 505 ug/Kg 430704SW8260B 7:42 BP

NDCarbon Tetrachloride 04/03/1810 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1,1-Trichloroethane 04/03/1810 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1-Dichloropropene 04/03/189.9 505 ug/Kg 430704SW8260B 7:42 BP

NDBenzene 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

NDTAME 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2-Dichloroethane 04/03/1812 505 ug/Kg 430704SW8260B 7:42 BP

NDTrichloroethylene 04/03/189.0 505 ug/Kg 430704SW8260B 7:42 BP

NDDibromomethane 04/03/189.2 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2-Dichloropropane 04/03/189.3 505 ug/Kg 430704SW8260B 7:42 BP

NDBromodichloromethane 04/03/189.8 505 ug/Kg 430704SW8260B 7:42 BP

NDcis-1,3-Dichloropropene 04/03/188.0 505 ug/Kg 430704SW8260B 7:42 BP

NDToluene 04/03/189.1 505 ug/Kg 430704SW8260B 7:42 BP

453Tetrachloroethylene 04/03/188.3 505 ug/Kg 430704SW8260B 7:42 BP

NDtrans-1,3-Dichloropropene 04/03/188.2 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1,2-Trichloroethane 04/03/189.2 505 ug/Kg 430704SW8260B 7:42 BP

NDDibromochloromethane 04/03/189.4 505 ug/Kg 430704SW8260B 7:42 BP

ND1,3-Dichloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 7:42 BP

Page 17 of 49Total Page Count: 49

Page 160: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:53

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-007A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/189.0 505 ug/Kg 430704SW8260B 7:42 BP

NDChlorobenzene 04/03/189.1 505 ug/Kg 430704SW8260B 7:42 BP

NDEthyl Benzene 04/03/188.3 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1,1,2-Tetrachloroethane 04/03/189.7 505 ug/Kg 430704SW8260B 7:42 BP

NDm,p-Xylene 04/03/1816 505 ug/Kg 430704SW8260B 7:42 BP

NDo-Xylene 04/03/188.6 505 ug/Kg 430704SW8260B 7:42 BP

NDStyrene 04/03/188.2 505 ug/Kg 430704SW8260B 7:42 BP

NDBromoform 04/03/188.4 505 ug/Kg 430704SW8260B 7:42 BP

NDIsopropyl Benzene 04/03/188.1 505 ug/Kg 430704SW8260B 7:42 BP

NDn-Propylbenzene 04/03/187.8 505 ug/Kg 430704SW8260B 7:42 BP

NDBromobenzene 04/03/188.8 505 ug/Kg 430704SW8260B 7:42 BP

ND1,1,2,2-Tetrachloroethane 04/03/189.6 505 ug/Kg 430704SW8260B 7:42 BP

ND2-Chlorotoluene 04/03/188.8 505 ug/Kg 430704SW8260B 7:42 BP

ND1,3,5-Trimethylbenzene 04/03/187.9 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2,3-Trichloropropane 04/03/189.5 505 ug/Kg 430704SW8260B 7:42 BP

ND4-Chlorotoluene 04/03/188.2 505 ug/Kg 430704SW8260B 7:42 BP

NDtert-Butylbenzene 04/03/188.1 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2,4-Trimethylbenzene 04/03/186.8 505 ug/Kg 430704SW8260B 7:42 BP

NDsec-Butyl Benzene 04/03/187.8 505 ug/Kg 430704SW8260B 7:42 BP

NDp-Isopropyltoluene 04/03/187.3 505 ug/Kg 430704SW8260B 7:42 BP

ND1,3-Dichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 7:42 BP

ND1,4-Dichlorobenzene 04/03/188.6 505 ug/Kg 430704SW8260B 7:42 BP

NDn-Butylbenzene 04/03/187.3 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2-Dichlorobenzene 04/03/188.9 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2-Dibromo-3-Chloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 7:42 BP

NDHexachlorobutadiene 04/03/186.8 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2,4-Trichlorobenzene 04/03/187.4 505 ug/Kg 430704SW8260B 7:42 BP

NDNaphthalene 04/03/188.4 505 ug/Kg 430704SW8260B 7:42 BP

ND1,2,3-Trichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 7:42 BP

ND2-Butanone 04/03/1811 505 ug/Kg 430704SW8260B 7:42 BP

103(S) Dibromofluoromethane 04/03/18% 430704SW8260B 7:42 BP59.8 - 148

109(S) Toluene-d8 04/03/18% 430704SW8260B 7:42 BP55.2 - 133

102(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 7:42 BP55.8 - 141

Page 18 of 49Total Page Count: 49

Page 161: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:00

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-008A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/181.2 101 ug/Kg 430704SW8260B 3:16 BP

NDChloromethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

NDVinyl Chloride 04/03/182.0 101 ug/Kg 430704SW8260B 3:16 BP

NDBromomethane 04/03/182.7 101 ug/Kg 430704SW8260B 3:16 BP

NDChloroethane 04/03/183.0 101 ug/Kg 430704SW8260B 3:16 BP

NDTrichlorofluoromethane 04/03/182.1 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1-Dichloroethene 04/03/182.0 101 ug/Kg 430704SW8260B 3:16 BP

NDFreon 113 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

NDMethylene Chloride 04/03/187.1 101 ug/Kg 430704SW8260B 3:16 BP

NDtrans-1,2-Dichloroethene 04/03/182.1 101 ug/Kg 430704SW8260B 3:16 BP

NDMTBE 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

NDtert-Butanol 04/03/1812 501 ug/Kg 430704SW8260B 3:16 BP

NDDiisopropyl ether (DIPE) 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1-Dichloroethane 04/03/182.2 101 ug/Kg 430704SW8260B 3:16 BP

NDETBE 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

NDcis-1,2-Dichloroethene 04/03/182.2 101 ug/Kg 430704SW8260B 3:16 BP

ND2,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

NDBromochloromethane 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

NDChloroform 04/03/182.4 101 ug/Kg 430704SW8260B 3:16 BP

NDCarbon Tetrachloride 04/03/182.1 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1,1-Trichloroethane 04/03/182.1 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1-Dichloropropene 04/03/182.0 101 ug/Kg 430704SW8260B 3:16 BP

NDBenzene 04/03/182.2 101 ug/Kg 430704SW8260B 3:16 BP

NDTAME 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2-Dichloroethane 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

NDTrichloroethylene 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

NDDibromomethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

NDBromodichloromethane 04/03/182.0 101 ug/Kg 430704SW8260B 3:16 BP

NDcis-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

131Toluene 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

E283Tetrachloroethylene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

NDtrans-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1,2-Trichloroethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

NDDibromochloromethane 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

ND1,3-Dichloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

Page 19 of 49Total Page Count: 49

Page 162: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:00

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-008A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

NDChlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

NDEthyl Benzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1,1,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

NDm,p-Xylene 04/03/183.2 101 ug/Kg 430704SW8260B 3:16 BP

NDo-Xylene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

NDStyrene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

NDBromoform 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

NDIsopropyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

NDn-Propylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

NDBromobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

ND1,1,2,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

ND2-Chlorotoluene 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

ND1,3,5-Trimethylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2,3-Trichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 3:16 BP

ND4-Chlorotoluene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

NDtert-Butylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2,4-Trimethylbenzene 04/03/181.4 101 ug/Kg 430704SW8260B 3:16 BP

NDsec-Butyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:16 BP

NDp-Isopropyltoluene 04/03/181.5 101 ug/Kg 430704SW8260B 3:16 BP

ND1,3-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

ND1,4-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

NDn-Butylbenzene 04/03/181.5 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2-Dichlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2-Dibromo-3-Chloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 3:16 BP

NDHexachlorobutadiene 04/03/181.4 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2,4-Trichlorobenzene 04/03/181.5 101 ug/Kg 430704SW8260B 3:16 BP

NDNaphthalene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

ND1,2,3-Trichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:16 BP

ND2-Butanone 04/03/182.3 101 ug/Kg 430704SW8260B 3:16 BP

120(S) Dibromofluoromethane 04/03/18% 430704SW8260B 3:16 BP59.8 - 148

119(S) Toluene-d8 04/03/18% 430704SW8260B 3:16 BP55.2 - 133

91.9(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 3:16 BP55.8 - 141

NOTE: E - Estimated value. The amount exceeds the calibration range but within linear working range of the instrument.

Page 20 of 49Total Page Count: 49

Page 163: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:07

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-009A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/181.2 101 ug/Kg 430704SW8260B 4:45 BP

NDChloromethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

NDVinyl Chloride 04/03/182.0 101 ug/Kg 430704SW8260B 4:45 BP

NDBromomethane 04/03/182.7 101 ug/Kg 430704SW8260B 4:45 BP

NDChloroethane 04/03/183.0 101 ug/Kg 430704SW8260B 4:45 BP

NDTrichlorofluoromethane 04/03/182.1 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1-Dichloroethene 04/03/182.0 101 ug/Kg 430704SW8260B 4:45 BP

NDFreon 113 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

NDMethylene Chloride 04/03/187.1 101 ug/Kg 430704SW8260B 4:45 BP

NDtrans-1,2-Dichloroethene 04/03/182.1 101 ug/Kg 430704SW8260B 4:45 BP

NDMTBE 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

NDtert-Butanol 04/03/1812 501 ug/Kg 430704SW8260B 4:45 BP

NDDiisopropyl ether (DIPE) 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1-Dichloroethane 04/03/182.2 101 ug/Kg 430704SW8260B 4:45 BP

NDETBE 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

NDcis-1,2-Dichloroethene 04/03/182.2 101 ug/Kg 430704SW8260B 4:45 BP

ND2,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

NDBromochloromethane 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

NDChloroform 04/03/182.4 101 ug/Kg 430704SW8260B 4:45 BP

NDCarbon Tetrachloride 04/03/182.1 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1,1-Trichloroethane 04/03/182.1 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1-Dichloropropene 04/03/182.0 101 ug/Kg 430704SW8260B 4:45 BP

NDBenzene 04/03/182.2 101 ug/Kg 430704SW8260B 4:45 BP

NDTAME 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2-Dichloroethane 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

NDTrichloroethylene 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

NDDibromomethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

NDBromodichloromethane 04/03/182.0 101 ug/Kg 430704SW8260B 4:45 BP

NDcis-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

42.3Toluene 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

73.3Tetrachloroethylene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

NDtrans-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1,2-Trichloroethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

NDDibromochloromethane 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

ND1,3-Dichloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

Page 21 of 49Total Page Count: 49

Page 164: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:07

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-009A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

NDChlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

NDEthyl Benzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1,1,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

NDm,p-Xylene 04/03/183.2 101 ug/Kg 430704SW8260B 4:45 BP

NDo-Xylene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

NDStyrene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

NDBromoform 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

NDIsopropyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

NDn-Propylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

NDBromobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

ND1,1,2,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

ND2-Chlorotoluene 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

ND1,3,5-Trimethylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2,3-Trichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 4:45 BP

ND4-Chlorotoluene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

NDtert-Butylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2,4-Trimethylbenzene 04/03/181.4 101 ug/Kg 430704SW8260B 4:45 BP

NDsec-Butyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:45 BP

NDp-Isopropyltoluene 04/03/181.5 101 ug/Kg 430704SW8260B 4:45 BP

ND1,3-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

ND1,4-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

NDn-Butylbenzene 04/03/181.5 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2-Dichlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2-Dibromo-3-Chloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 4:45 BP

NDHexachlorobutadiene 04/03/181.4 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2,4-Trichlorobenzene 04/03/181.5 101 ug/Kg 430704SW8260B 4:45 BP

NDNaphthalene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

ND1,2,3-Trichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:45 BP

ND2-Butanone 04/03/182.3 101 ug/Kg 430704SW8260B 4:45 BP

122(S) Dibromofluoromethane 04/03/18% 430704SW8260B 4:45 BP59.8 - 148

115(S) Toluene-d8 04/03/18% 430704SW8260B 4:45 BP55.2 - 133

91.2(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 4:45 BP55.8 - 141

Page 22 of 49Total Page Count: 49

Page 165: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:12

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-010A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/181.2 101 ug/Kg 430704SW8260B 5:15 BP

NDChloromethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

NDVinyl Chloride 04/03/182.0 101 ug/Kg 430704SW8260B 5:15 BP

NDBromomethane 04/03/182.7 101 ug/Kg 430704SW8260B 5:15 BP

NDChloroethane 04/03/183.0 101 ug/Kg 430704SW8260B 5:15 BP

NDTrichlorofluoromethane 04/03/182.1 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1-Dichloroethene 04/03/182.0 101 ug/Kg 430704SW8260B 5:15 BP

NDFreon 113 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

NDMethylene Chloride 04/03/187.1 101 ug/Kg 430704SW8260B 5:15 BP

NDtrans-1,2-Dichloroethene 04/03/182.1 101 ug/Kg 430704SW8260B 5:15 BP

NDMTBE 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

NDtert-Butanol 04/03/1812 501 ug/Kg 430704SW8260B 5:15 BP

NDDiisopropyl ether (DIPE) 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1-Dichloroethane 04/03/182.2 101 ug/Kg 430704SW8260B 5:15 BP

NDETBE 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

NDcis-1,2-Dichloroethene 04/03/182.2 101 ug/Kg 430704SW8260B 5:15 BP

ND2,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

NDBromochloromethane 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

NDChloroform 04/03/182.4 101 ug/Kg 430704SW8260B 5:15 BP

NDCarbon Tetrachloride 04/03/182.1 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1,1-Trichloroethane 04/03/182.1 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1-Dichloropropene 04/03/182.0 101 ug/Kg 430704SW8260B 5:15 BP

NDBenzene 04/03/182.2 101 ug/Kg 430704SW8260B 5:15 BP

NDTAME 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2-Dichloroethane 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

NDTrichloroethylene 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

NDDibromomethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

NDBromodichloromethane 04/03/182.0 101 ug/Kg 430704SW8260B 5:15 BP

NDcis-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

36.5Toluene 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

50.6Tetrachloroethylene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

NDtrans-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1,2-Trichloroethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

NDDibromochloromethane 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

ND1,3-Dichloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

Page 23 of 49Total Page Count: 49

Page 166: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:12

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-010A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

NDChlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

NDEthyl Benzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1,1,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

NDm,p-Xylene 04/03/183.2 101 ug/Kg 430704SW8260B 5:15 BP

NDo-Xylene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

NDStyrene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

NDBromoform 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

NDIsopropyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

NDn-Propylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

NDBromobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

ND1,1,2,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

ND2-Chlorotoluene 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

ND1,3,5-Trimethylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2,3-Trichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 5:15 BP

ND4-Chlorotoluene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

NDtert-Butylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2,4-Trimethylbenzene 04/03/181.4 101 ug/Kg 430704SW8260B 5:15 BP

NDsec-Butyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:15 BP

NDp-Isopropyltoluene 04/03/181.5 101 ug/Kg 430704SW8260B 5:15 BP

ND1,3-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

ND1,4-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

NDn-Butylbenzene 04/03/181.5 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2-Dichlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2-Dibromo-3-Chloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 5:15 BP

NDHexachlorobutadiene 04/03/181.4 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2,4-Trichlorobenzene 04/03/181.5 101 ug/Kg 430704SW8260B 5:15 BP

NDNaphthalene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

ND1,2,3-Trichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:15 BP

ND2-Butanone 04/03/182.3 101 ug/Kg 430704SW8260B 5:15 BP

127(S) Dibromofluoromethane 04/03/18% 430704SW8260B 5:15 BP59.8 - 148

113(S) Toluene-d8 04/03/18% 430704SW8260B 5:15 BP55.2 - 133

93.9(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 5:15 BP55.8 - 141

Page 24 of 49Total Page Count: 49

Page 167: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:18

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-011A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/186.1 505 ug/Kg 430704SW8260B 8:12 BP

NDChloromethane 04/03/189.1 505 ug/Kg 430704SW8260B 8:12 BP

NDVinyl Chloride 04/03/1810 505 ug/Kg 430704SW8260B 8:12 BP

NDBromomethane 04/03/1813 505 ug/Kg 430704SW8260B 8:12 BP

NDChloroethane 04/03/1815 505 ug/Kg 430704SW8260B 8:12 BP

NDTrichlorofluoromethane 04/03/1810 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 8:12 BP

NDFreon 113 04/03/189.4 505 ug/Kg 430704SW8260B 8:12 BP

NDMethylene Chloride 04/03/1836 505 ug/Kg 430704SW8260B 8:12 BP

NDtrans-1,2-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 8:12 BP

NDMTBE 04/03/1812 505 ug/Kg 430704SW8260B 8:12 BP

NDtert-Butanol 04/03/1858 2505 ug/Kg 430704SW8260B 8:12 BP

NDDiisopropyl ether (DIPE) 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1-Dichloroethane 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

NDETBE 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

NDcis-1,2-Dichloroethene 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

ND2,2-Dichloropropane 04/03/189.6 505 ug/Kg 430704SW8260B 8:12 BP

NDBromochloromethane 04/03/1812 505 ug/Kg 430704SW8260B 8:12 BP

NDChloroform 04/03/1812 505 ug/Kg 430704SW8260B 8:12 BP

NDCarbon Tetrachloride 04/03/1810 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1,1-Trichloroethane 04/03/1810 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1-Dichloropropene 04/03/189.9 505 ug/Kg 430704SW8260B 8:12 BP

NDBenzene 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

NDTAME 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2-Dichloroethane 04/03/1812 505 ug/Kg 430704SW8260B 8:12 BP

NDTrichloroethylene 04/03/189.0 505 ug/Kg 430704SW8260B 8:12 BP

NDDibromomethane 04/03/189.2 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2-Dichloropropane 04/03/189.3 505 ug/Kg 430704SW8260B 8:12 BP

NDBromodichloromethane 04/03/189.8 505 ug/Kg 430704SW8260B 8:12 BP

NDcis-1,3-Dichloropropene 04/03/188.0 505 ug/Kg 430704SW8260B 8:12 BP

NDToluene 04/03/189.1 505 ug/Kg 430704SW8260B 8:12 BP

441Tetrachloroethylene 04/03/188.3 505 ug/Kg 430704SW8260B 8:12 BP

NDtrans-1,3-Dichloropropene 04/03/188.2 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1,2-Trichloroethane 04/03/189.2 505 ug/Kg 430704SW8260B 8:12 BP

NDDibromochloromethane 04/03/189.4 505 ug/Kg 430704SW8260B 8:12 BP

ND1,3-Dichloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 8:12 BP

Page 25 of 49Total Page Count: 49

Page 168: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:18

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-011A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/189.0 505 ug/Kg 430704SW8260B 8:12 BP

NDChlorobenzene 04/03/189.1 505 ug/Kg 430704SW8260B 8:12 BP

NDEthyl Benzene 04/03/188.3 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1,1,2-Tetrachloroethane 04/03/189.7 505 ug/Kg 430704SW8260B 8:12 BP

NDm,p-Xylene 04/03/1816 505 ug/Kg 430704SW8260B 8:12 BP

NDo-Xylene 04/03/188.6 505 ug/Kg 430704SW8260B 8:12 BP

NDStyrene 04/03/188.2 505 ug/Kg 430704SW8260B 8:12 BP

NDBromoform 04/03/188.4 505 ug/Kg 430704SW8260B 8:12 BP

NDIsopropyl Benzene 04/03/188.1 505 ug/Kg 430704SW8260B 8:12 BP

NDn-Propylbenzene 04/03/187.8 505 ug/Kg 430704SW8260B 8:12 BP

NDBromobenzene 04/03/188.8 505 ug/Kg 430704SW8260B 8:12 BP

ND1,1,2,2-Tetrachloroethane 04/03/189.6 505 ug/Kg 430704SW8260B 8:12 BP

ND2-Chlorotoluene 04/03/188.8 505 ug/Kg 430704SW8260B 8:12 BP

ND1,3,5-Trimethylbenzene 04/03/187.9 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2,3-Trichloropropane 04/03/189.5 505 ug/Kg 430704SW8260B 8:12 BP

ND4-Chlorotoluene 04/03/188.2 505 ug/Kg 430704SW8260B 8:12 BP

NDtert-Butylbenzene 04/03/188.1 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2,4-Trimethylbenzene 04/03/186.8 505 ug/Kg 430704SW8260B 8:12 BP

NDsec-Butyl Benzene 04/03/187.8 505 ug/Kg 430704SW8260B 8:12 BP

NDp-Isopropyltoluene 04/03/187.3 505 ug/Kg 430704SW8260B 8:12 BP

ND1,3-Dichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 8:12 BP

ND1,4-Dichlorobenzene 04/03/188.6 505 ug/Kg 430704SW8260B 8:12 BP

NDn-Butylbenzene 04/03/187.3 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2-Dichlorobenzene 04/03/188.9 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2-Dibromo-3-Chloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 8:12 BP

NDHexachlorobutadiene 04/03/186.8 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2,4-Trichlorobenzene 04/03/187.4 505 ug/Kg 430704SW8260B 8:12 BP

NDNaphthalene 04/03/188.4 505 ug/Kg 430704SW8260B 8:12 BP

ND1,2,3-Trichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 8:12 BP

ND2-Butanone 04/03/1811 505 ug/Kg 430704SW8260B 8:12 BP

107(S) Dibromofluoromethane 04/03/18% 430704SW8260B 8:12 BP59.8 - 148

111(S) Toluene-d8 04/03/18% 430704SW8260B 8:12 BP55.2 - 133

98.8(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 8:12 BP55.8 - 141

Page 26 of 49Total Page Count: 49

Page 169: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:21

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-012A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/186.1 505 ug/Kg 430704SW8260B 9:11 BP

NDChloromethane 04/03/189.1 505 ug/Kg 430704SW8260B 9:11 BP

NDVinyl Chloride 04/03/1810 505 ug/Kg 430704SW8260B 9:11 BP

NDBromomethane 04/03/1813 505 ug/Kg 430704SW8260B 9:11 BP

NDChloroethane 04/03/1815 505 ug/Kg 430704SW8260B 9:11 BP

NDTrichlorofluoromethane 04/03/1810 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 9:11 BP

NDFreon 113 04/03/189.4 505 ug/Kg 430704SW8260B 9:11 BP

NDMethylene Chloride 04/03/1836 505 ug/Kg 430704SW8260B 9:11 BP

NDtrans-1,2-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 9:11 BP

NDMTBE 04/03/1812 505 ug/Kg 430704SW8260B 9:11 BP

NDtert-Butanol 04/03/1858 2505 ug/Kg 430704SW8260B 9:11 BP

NDDiisopropyl ether (DIPE) 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1-Dichloroethane 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

NDETBE 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

NDcis-1,2-Dichloroethene 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

ND2,2-Dichloropropane 04/03/189.6 505 ug/Kg 430704SW8260B 9:11 BP

NDBromochloromethane 04/03/1812 505 ug/Kg 430704SW8260B 9:11 BP

NDChloroform 04/03/1812 505 ug/Kg 430704SW8260B 9:11 BP

NDCarbon Tetrachloride 04/03/1810 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1,1-Trichloroethane 04/03/1810 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1-Dichloropropene 04/03/189.9 505 ug/Kg 430704SW8260B 9:11 BP

NDBenzene 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

NDTAME 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2-Dichloroethane 04/03/1812 505 ug/Kg 430704SW8260B 9:11 BP

NDTrichloroethylene 04/03/189.0 505 ug/Kg 430704SW8260B 9:11 BP

NDDibromomethane 04/03/189.2 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2-Dichloropropane 04/03/189.3 505 ug/Kg 430704SW8260B 9:11 BP

NDBromodichloromethane 04/03/189.8 505 ug/Kg 430704SW8260B 9:11 BP

NDcis-1,3-Dichloropropene 04/03/188.0 505 ug/Kg 430704SW8260B 9:11 BP

91.6Toluene 04/03/189.1 505 ug/Kg 430704SW8260B 9:11 BP

167Tetrachloroethylene 04/03/188.3 505 ug/Kg 430704SW8260B 9:11 BP

NDtrans-1,3-Dichloropropene 04/03/188.2 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1,2-Trichloroethane 04/03/189.2 505 ug/Kg 430704SW8260B 9:11 BP

NDDibromochloromethane 04/03/189.4 505 ug/Kg 430704SW8260B 9:11 BP

ND1,3-Dichloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 9:11 BP

Page 27 of 49Total Page Count: 49

Page 170: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:21

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-012A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/189.0 505 ug/Kg 430704SW8260B 9:11 BP

NDChlorobenzene 04/03/189.1 505 ug/Kg 430704SW8260B 9:11 BP

NDEthyl Benzene 04/03/188.3 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1,1,2-Tetrachloroethane 04/03/189.7 505 ug/Kg 430704SW8260B 9:11 BP

NDm,p-Xylene 04/03/1816 505 ug/Kg 430704SW8260B 9:11 BP

NDo-Xylene 04/03/188.6 505 ug/Kg 430704SW8260B 9:11 BP

NDStyrene 04/03/188.2 505 ug/Kg 430704SW8260B 9:11 BP

NDBromoform 04/03/188.4 505 ug/Kg 430704SW8260B 9:11 BP

NDIsopropyl Benzene 04/03/188.1 505 ug/Kg 430704SW8260B 9:11 BP

NDn-Propylbenzene 04/03/187.8 505 ug/Kg 430704SW8260B 9:11 BP

NDBromobenzene 04/03/188.8 505 ug/Kg 430704SW8260B 9:11 BP

ND1,1,2,2-Tetrachloroethane 04/03/189.6 505 ug/Kg 430704SW8260B 9:11 BP

ND2-Chlorotoluene 04/03/188.8 505 ug/Kg 430704SW8260B 9:11 BP

ND1,3,5-Trimethylbenzene 04/03/187.9 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2,3-Trichloropropane 04/03/189.5 505 ug/Kg 430704SW8260B 9:11 BP

ND4-Chlorotoluene 04/03/188.2 505 ug/Kg 430704SW8260B 9:11 BP

NDtert-Butylbenzene 04/03/188.1 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2,4-Trimethylbenzene 04/03/186.8 505 ug/Kg 430704SW8260B 9:11 BP

NDsec-Butyl Benzene 04/03/187.8 505 ug/Kg 430704SW8260B 9:11 BP

NDp-Isopropyltoluene 04/03/187.3 505 ug/Kg 430704SW8260B 9:11 BP

ND1,3-Dichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 9:11 BP

ND1,4-Dichlorobenzene 04/03/188.6 505 ug/Kg 430704SW8260B 9:11 BP

NDn-Butylbenzene 04/03/187.3 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2-Dichlorobenzene 04/03/188.9 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2-Dibromo-3-Chloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 9:11 BP

NDHexachlorobutadiene 04/03/186.8 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2,4-Trichlorobenzene 04/03/187.4 505 ug/Kg 430704SW8260B 9:11 BP

NDNaphthalene 04/03/188.4 505 ug/Kg 430704SW8260B 9:11 BP

ND1,2,3-Trichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 9:11 BP

ND2-Butanone 04/03/1811 505 ug/Kg 430704SW8260B 9:11 BP

107(S) Dibromofluoromethane 04/03/18% 430704SW8260B 9:11 BP59.8 - 148

109(S) Toluene-d8 04/03/18% 430704SW8260B 9:11 BP55.2 - 133

93.1(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 9:11 BP55.8 - 141

Page 28 of 49Total Page Count: 49

Page 171: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:27

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-013A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/181.2 101 ug/Kg 430704SW8260B 5:44 BP

NDChloromethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

NDVinyl Chloride 04/03/182.0 101 ug/Kg 430704SW8260B 5:44 BP

NDBromomethane 04/03/182.7 101 ug/Kg 430704SW8260B 5:44 BP

NDChloroethane 04/03/183.0 101 ug/Kg 430704SW8260B 5:44 BP

NDTrichlorofluoromethane 04/03/182.1 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1-Dichloroethene 04/03/182.0 101 ug/Kg 430704SW8260B 5:44 BP

NDFreon 113 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

NDMethylene Chloride 04/03/187.1 101 ug/Kg 430704SW8260B 5:44 BP

NDtrans-1,2-Dichloroethene 04/03/182.1 101 ug/Kg 430704SW8260B 5:44 BP

NDMTBE 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

NDtert-Butanol 04/03/1812 501 ug/Kg 430704SW8260B 5:44 BP

NDDiisopropyl ether (DIPE) 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1-Dichloroethane 04/03/182.2 101 ug/Kg 430704SW8260B 5:44 BP

NDETBE 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

NDcis-1,2-Dichloroethene 04/03/182.2 101 ug/Kg 430704SW8260B 5:44 BP

ND2,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

NDBromochloromethane 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

NDChloroform 04/03/182.4 101 ug/Kg 430704SW8260B 5:44 BP

NDCarbon Tetrachloride 04/03/182.1 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1,1-Trichloroethane 04/03/182.1 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1-Dichloropropene 04/03/182.0 101 ug/Kg 430704SW8260B 5:44 BP

NDBenzene 04/03/182.2 101 ug/Kg 430704SW8260B 5:44 BP

NDTAME 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2-Dichloroethane 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

NDTrichloroethylene 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

NDDibromomethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

NDBromodichloromethane 04/03/182.0 101 ug/Kg 430704SW8260B 5:44 BP

NDcis-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

34.0Toluene 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

54.6Tetrachloroethylene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

NDtrans-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1,2-Trichloroethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

NDDibromochloromethane 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

ND1,3-Dichloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

Page 29 of 49Total Page Count: 49

Page 172: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 12:27

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-013A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

NDChlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

NDEthyl Benzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1,1,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

NDm,p-Xylene 04/03/183.2 101 ug/Kg 430704SW8260B 5:44 BP

NDo-Xylene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

NDStyrene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

NDBromoform 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

NDIsopropyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

NDn-Propylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

NDBromobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

ND1,1,2,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

ND2-Chlorotoluene 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

ND1,3,5-Trimethylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2,3-Trichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 5:44 BP

ND4-Chlorotoluene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

NDtert-Butylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2,4-Trimethylbenzene 04/03/181.4 101 ug/Kg 430704SW8260B 5:44 BP

NDsec-Butyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 5:44 BP

NDp-Isopropyltoluene 04/03/181.5 101 ug/Kg 430704SW8260B 5:44 BP

ND1,3-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

ND1,4-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

NDn-Butylbenzene 04/03/181.5 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2-Dichlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2-Dibromo-3-Chloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 5:44 BP

NDHexachlorobutadiene 04/03/181.4 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2,4-Trichlorobenzene 04/03/181.5 101 ug/Kg 430704SW8260B 5:44 BP

NDNaphthalene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

ND1,2,3-Trichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 5:44 BP

ND2-Butanone 04/03/182.3 101 ug/Kg 430704SW8260B 5:44 BP

120(S) Dibromofluoromethane 04/03/18% 430704SW8260B 5:44 BP59.8 - 148

113(S) Toluene-d8 04/03/18% 430704SW8260B 5:44 BP55.2 - 133

95.9(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 5:44 BP55.8 - 141

Page 30 of 49Total Page Count: 49

Page 173: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:32

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-014A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/181.2 101 ug/Kg 430704SW8260B 3:46 BP

NDChloromethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

NDVinyl Chloride 04/03/182.0 101 ug/Kg 430704SW8260B 3:46 BP

NDBromomethane 04/03/182.7 101 ug/Kg 430704SW8260B 3:46 BP

NDChloroethane 04/03/183.0 101 ug/Kg 430704SW8260B 3:46 BP

NDTrichlorofluoromethane 04/03/182.1 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1-Dichloroethene 04/03/182.0 101 ug/Kg 430704SW8260B 3:46 BP

NDFreon 113 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

NDMethylene Chloride 04/03/187.1 101 ug/Kg 430704SW8260B 3:46 BP

NDtrans-1,2-Dichloroethene 04/03/182.1 101 ug/Kg 430704SW8260B 3:46 BP

NDMTBE 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

NDtert-Butanol 04/03/1812 501 ug/Kg 430704SW8260B 3:46 BP

NDDiisopropyl ether (DIPE) 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1-Dichloroethane 04/03/182.2 101 ug/Kg 430704SW8260B 3:46 BP

NDETBE 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

NDcis-1,2-Dichloroethene 04/03/182.2 101 ug/Kg 430704SW8260B 3:46 BP

ND2,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

NDBromochloromethane 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

NDChloroform 04/03/182.4 101 ug/Kg 430704SW8260B 3:46 BP

NDCarbon Tetrachloride 04/03/182.1 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1,1-Trichloroethane 04/03/182.1 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1-Dichloropropene 04/03/182.0 101 ug/Kg 430704SW8260B 3:46 BP

NDBenzene 04/03/182.2 101 ug/Kg 430704SW8260B 3:46 BP

NDTAME 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2-Dichloroethane 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

NDTrichloroethylene 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

NDDibromomethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

NDBromodichloromethane 04/03/182.0 101 ug/Kg 430704SW8260B 3:46 BP

NDcis-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

43.2Toluene 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

21.3Tetrachloroethylene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

NDtrans-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1,2-Trichloroethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

NDDibromochloromethane 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

ND1,3-Dichloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

Page 31 of 49Total Page Count: 49

Page 174: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:32

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-014A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

NDChlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

NDEthyl Benzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1,1,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

NDm,p-Xylene 04/03/183.2 101 ug/Kg 430704SW8260B 3:46 BP

NDo-Xylene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

NDStyrene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

NDBromoform 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

NDIsopropyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

NDn-Propylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

NDBromobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

ND1,1,2,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

ND2-Chlorotoluene 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

ND1,3,5-Trimethylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2,3-Trichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 3:46 BP

ND4-Chlorotoluene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

NDtert-Butylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2,4-Trimethylbenzene 04/03/181.4 101 ug/Kg 430704SW8260B 3:46 BP

NDsec-Butyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 3:46 BP

NDp-Isopropyltoluene 04/03/181.5 101 ug/Kg 430704SW8260B 3:46 BP

ND1,3-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

ND1,4-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

NDn-Butylbenzene 04/03/181.5 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2-Dichlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2-Dibromo-3-Chloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 3:46 BP

NDHexachlorobutadiene 04/03/181.4 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2,4-Trichlorobenzene 04/03/181.5 101 ug/Kg 430704SW8260B 3:46 BP

NDNaphthalene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

ND1,2,3-Trichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 3:46 BP

ND2-Butanone 04/03/182.3 101 ug/Kg 430704SW8260B 3:46 BP

117(S) Dibromofluoromethane 04/03/18% 430704SW8260B 3:46 BP59.8 - 148

116(S) Toluene-d8 04/03/18% 430704SW8260B 3:46 BP55.2 - 133

94.5(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 3:46 BP55.8 - 141

Page 32 of 49Total Page Count: 49

Page 175: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:38

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-015A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/181.2 101 ug/Kg 430704SW8260B 4:16 BP

NDChloromethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

NDVinyl Chloride 04/03/182.0 101 ug/Kg 430704SW8260B 4:16 BP

NDBromomethane 04/03/182.7 101 ug/Kg 430704SW8260B 4:16 BP

NDChloroethane 04/03/183.0 101 ug/Kg 430704SW8260B 4:16 BP

NDTrichlorofluoromethane 04/03/182.1 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1-Dichloroethene 04/03/182.0 101 ug/Kg 430704SW8260B 4:16 BP

NDFreon 113 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

NDMethylene Chloride 04/03/187.1 101 ug/Kg 430704SW8260B 4:16 BP

NDtrans-1,2-Dichloroethene 04/03/182.1 101 ug/Kg 430704SW8260B 4:16 BP

NDMTBE 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

NDtert-Butanol 04/03/1812 501 ug/Kg 430704SW8260B 4:16 BP

NDDiisopropyl ether (DIPE) 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1-Dichloroethane 04/03/182.2 101 ug/Kg 430704SW8260B 4:16 BP

NDETBE 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

NDcis-1,2-Dichloroethene 04/03/182.2 101 ug/Kg 430704SW8260B 4:16 BP

ND2,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

NDBromochloromethane 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

NDChloroform 04/03/182.4 101 ug/Kg 430704SW8260B 4:16 BP

NDCarbon Tetrachloride 04/03/182.1 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1,1-Trichloroethane 04/03/182.1 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1-Dichloropropene 04/03/182.0 101 ug/Kg 430704SW8260B 4:16 BP

NDBenzene 04/03/182.2 101 ug/Kg 430704SW8260B 4:16 BP

NDTAME 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2-Dichloroethane 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

NDTrichloroethylene 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

NDDibromomethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2-Dichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

NDBromodichloromethane 04/03/182.0 101 ug/Kg 430704SW8260B 4:16 BP

NDcis-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

42.7Toluene 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

38.1Tetrachloroethylene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

NDtrans-1,3-Dichloropropene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1,2-Trichloroethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

NDDibromochloromethane 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

ND1,3-Dichloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

Page 33 of 49Total Page Count: 49

Page 176: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 10:38

14121.001.000

282 S. Montgomery

[email protected]'

SoilSample Matrix:

Lab Sample ID: 1803314-015A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

NDChlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

NDEthyl Benzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1,1,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

NDm,p-Xylene 04/03/183.2 101 ug/Kg 430704SW8260B 4:16 BP

NDo-Xylene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

NDStyrene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

NDBromoform 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

NDIsopropyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

NDn-Propylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

NDBromobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

ND1,1,2,2-Tetrachloroethane 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

ND2-Chlorotoluene 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

ND1,3,5-Trimethylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2,3-Trichloropropane 04/03/181.9 101 ug/Kg 430704SW8260B 4:16 BP

ND4-Chlorotoluene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

NDtert-Butylbenzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2,4-Trimethylbenzene 04/03/181.4 101 ug/Kg 430704SW8260B 4:16 BP

NDsec-Butyl Benzene 04/03/181.6 101 ug/Kg 430704SW8260B 4:16 BP

NDp-Isopropyltoluene 04/03/181.5 101 ug/Kg 430704SW8260B 4:16 BP

ND1,3-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

ND1,4-Dichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

NDn-Butylbenzene 04/03/181.5 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2-Dichlorobenzene 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2-Dibromo-3-Chloropropane 04/03/181.8 101 ug/Kg 430704SW8260B 4:16 BP

NDHexachlorobutadiene 04/03/181.4 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2,4-Trichlorobenzene 04/03/181.5 101 ug/Kg 430704SW8260B 4:16 BP

NDNaphthalene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

ND1,2,3-Trichlorobenzene 04/03/181.7 101 ug/Kg 430704SW8260B 4:16 BP

ND2-Butanone 04/03/182.3 101 ug/Kg 430704SW8260B 4:16 BP

120(S) Dibromofluoromethane 04/03/18% 430704SW8260B 4:16 BP59.8 - 148

109(S) Toluene-d8 04/03/18% 430704SW8260B 4:16 BP55.2 - 133

97.7(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 4:16 BP55.8 - 141

Page 34 of 49Total Page Count: 49

Page 177: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 7:15

14121.001.000

282 S. Montgomery

CW-GW

GroundwaterSample Matrix:

Lab Sample ID: 1803314-016A

SDG:

Prep Batch ID: 1103919

Prep Batch Date/Time: 3/30/18 12:09:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

The results shown below are reported using their MDL. NDDichlorodifluoromethane 03/31/180.39 0.751.5 ug/L 430669SW8260B 5:07 BP

NDChloromethane 03/31/180.25 0.751.5 ug/L 430669SW8260B 5:07 BP

NDVinyl Chloride 03/31/180.31 0.751.5 ug/L 430669SW8260B 5:07 BP

NDBromomethane 03/31/180.32 0.751.5 ug/L 430669SW8260B 5:07 BP

NDChloroethane 03/31/180.17 0.751.5 ug/L 430669SW8260B 5:07 BP

NDTrichlorofluoromethane 03/31/180.28 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,1-Dichloroethene 03/31/180.21 0.751.5 ug/L 430669SW8260B 5:07 BP

NDFreon 113 03/31/180.51 0.751.5 ug/L 430669SW8260B 5:07 BP

NDMethylene Chloride 03/31/180.20 0.751.5 ug/L 430669SW8260B 5:07 BP

NDtrans-1,2-Dichloroethene 03/31/180.24 0.751.5 ug/L 430669SW8260B 5:07 BP

NDMTBE 03/31/180.12 0.751.5 ug/L 430669SW8260B 5:07 BP

NDtert-Butanol 03/31/1811 151.5 ug/L 430669SW8260B 5:07 BP

NDDiisopropyl ether (DIPE) 03/31/180.18 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,1-Dichloroethane 03/31/180.18 0.751.5 ug/L 430669SW8260B 5:07 BP

NDETBE 03/31/180.096 0.751.5 ug/L 430669SW8260B 5:07 BP

NDcis-1,2-Dichloroethene 03/31/180.23 0.751.5 ug/L 430669SW8260B 5:07 BP

ND2,2-Dichloropropane 03/31/180.14 0.751.5 ug/L 430669SW8260B 5:07 BP

NDBromochloromethane 03/31/180.22 0.751.5 ug/L 430669SW8260B 5:07 BP

NDChloroform 03/31/180.18 0.751.5 ug/L 430669SW8260B 5:07 BP

NDCarbon Tetrachloride 03/31/180.24 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,1,1-Trichloroethane 03/31/180.24 0.751.5 ug/L 430669SW8260B 5:07 BP

J0.541,1-Dichloropropene 03/31/180.28 0.751.5 ug/L 430669SW8260B 5:07 BP

NDBenzene 03/31/180.23 0.751.5 ug/L 430669SW8260B 5:07 BP

NDTAME 03/31/180.11 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2-Dichloroethane 03/31/180.16 0.751.5 ug/L 430669SW8260B 5:07 BP

NDTrichloroethylene 03/31/180.22 0.751.5 ug/L 430669SW8260B 5:07 BP

NDDibromomethane 03/31/180.16 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2-Dichloropropane 03/31/180.13 0.751.5 ug/L 430669SW8260B 5:07 BP

NDBromodichloromethane 03/31/180.11 0.751.5 ug/L 430669SW8260B 5:07 BP

NDcis-1,3-Dichloropropene 03/31/180.12 0.751.5 ug/L 430669SW8260B 5:07 BP

J0.38Toluene 03/31/180.22 0.751.5 ug/L 430669SW8260B 5:07 BP

NDTetrachloroethylene 03/31/180.36 0.751.5 ug/L 430669SW8260B 5:07 BP

NDtrans-1,3-Dichloropropene 03/31/180.32 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,1,2-Trichloroethane 03/31/180.11 0.751.5 ug/L 430669SW8260B 5:07 BP

NDDibromochloromethane 03/31/180.27 0.751.5 ug/L 430669SW8260B 5:07 BP

Page 35 of 49Total Page Count: 49

Page 178: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 7:15

14121.001.000

282 S. Montgomery

CW-GW

GroundwaterSample Matrix:

Lab Sample ID: 1803314-016A

SDG:

Prep Batch ID: 1103919

Prep Batch Date/Time: 3/30/18 12:09:00AM

Prep Analyst: BPATEL

Prep Method: 5030VOC

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

The results shown below are reported using their MDL. ND1,3-Dichloropropane 03/31/180.32 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2-Dibromoethane 03/31/180.12 0.751.5 ug/L 430669SW8260B 5:07 BP

NDChlorobenzene 03/31/180.24 0.751.5 ug/L 430669SW8260B 5:07 BP

NDEthyl Benzene 03/31/180.29 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,1,1,2-Tetrachloroethane 03/31/180.13 0.751.5 ug/L 430669SW8260B 5:07 BP

NDm,p-Xylene 03/31/180.59 1.51.5 ug/L 430669SW8260B 5:07 BP

NDo-Xylene 03/31/180.23 0.751.5 ug/L 430669SW8260B 5:07 BP

NDStyrene 03/31/180.16 0.751.5 ug/L 430669SW8260B 5:07 BP

NDBromoform 03/31/180.11 0.751.5 ug/L 430669SW8260B 5:07 BP

NDIsopropyl Benzene 03/31/180.33 0.751.5 ug/L 430669SW8260B 5:07 BP

NDn-Propylbenzene 03/31/180.44 0.751.5 ug/L 430669SW8260B 5:07 BP

NDBromobenzene 03/31/180.22 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,1,2,2-Tetrachloroethane 03/31/180.12 0.751.5 ug/L 430669SW8260B 5:07 BP

ND2-Chlorotoluene 03/31/180.38 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,3,5-Trimethylbenzene 03/31/180.36 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2,3-Trichloropropane 03/31/180.22 0.751.5 ug/L 430669SW8260B 5:07 BP

ND4-Chlorotoluene 03/31/180.32 0.751.5 ug/L 430669SW8260B 5:07 BP

NDtert-Butylbenzene 03/31/180.40 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2,4-Trimethylbenzene 03/31/180.35 0.751.5 ug/L 430669SW8260B 5:07 BP

NDsec-Butyl Benzene 03/31/180.44 0.751.5 ug/L 430669SW8260B 5:07 BP

NDp-Isopropyltoluene 03/31/180.40 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,3-Dichlorobenzene 03/31/180.25 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,4-Dichlorobenzene 03/31/180.26 0.751.5 ug/L 430669SW8260B 5:07 BP

NDn-Butylbenzene 03/31/180.41 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2-Dichlorobenzene 03/31/180.24 0.751.5 ug/L 430669SW8260B 5:07 BP

ND1,2-Dibromo-3-Chloropropane 03/31/181.1 3.01.5 ug/L 430669SW8260B 5:07 BP

NDHexachlorobutadiene 03/31/180.93 3.01.5 ug/L 430669SW8260B 5:07 BP

ND1,2,4-Trichlorobenzene 03/31/181.4 3.01.5 ug/L 430669SW8260B 5:07 BP

NDNaphthalene 03/31/181.8 3.01.5 ug/L 430669SW8260B 5:07 BP

ND1,2,3-Trichlorobenzene 03/31/181.8 3.01.5 ug/L 430669SW8260B 5:07 BP

125(S) Dibromofluoromethane 03/31/18% 430669SW8260B 5:07 BP61.2 - 131

100(S) Toluene-d8 03/31/18% 430669SW8260B 5:07 BP75.1 - 127

96.2(S) 4-Bromofluorobenzene 03/31/18% 430669SW8260B 5:07 BP64.1 - 120

NOTE: Reporting limits were raised due to sediment in all VOAs.

Page 36 of 49Total Page Count: 49

Page 179: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/Kg

11039165035

Soil 430683

1803314

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.2 10Dichlorodifluoromethane ND

1.8 10Chloromethane ND

2.0 10Vinyl Chloride ND

2.7 10Bromomethane ND

3.0 10Chloroethane ND

2.1 10Trichlorofluoromethane ND

2.0 101,1-Dichloroethene ND

1.9 10Freon 113 ND

7.1 10Methylene Chloride ND

2.1 10trans-1,2-Dichloroethene ND

2.3 10MTBE ND

12 50tert-Butanol ND

2.3 10Diisopropyl ether (DIPE) ND

2.2 101,1-Dichloroethane ND

2.3 10ETBE ND

2.2 10cis-1,2-Dichloroethene ND

1.9 102,2-Dichloropropane ND

2.3 10Bromochloromethane ND

2.4 10Chloroform ND

2.1 10Carbon Tetrachloride ND

2.1 101,1,1-Trichloroethane ND

2.0 101,1-Dichloropropene ND

2.2 10Benzene ND

2.3 10TAME ND

2.3 101,2-Dichloroethane ND

1.8 10Trichloroethylene ND

1.8 10Dibromomethane ND

1.9 101,2-Dichloropropane ND

2.0 10Bromodichloromethane ND

1.6 10cis-1,3-Dichloropropene ND

1.8 10Toluene ND

1.7 10Tetrachloroethylene ND

1.6 10trans-1,3-Dichloropropene ND

1.8 101,1,2-Trichloroethane ND

1.9 10Dibromochloromethane ND

1.8 101,3-Dichloropropane ND

1.8 101,2-Dibromoethane ND

1.8 10Chlorobenzene ND

1.7 10Ethyl Benzene ND

1.9 101,1,1,2-Tetrachloroethane ND

3.2 10m,p-Xylene ND

1.7 10o-Xylene ND

Page 37 of 49Total Page Count: 49

Page 180: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/Kg

11039165035

Soil 430683

1803314

3/30/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.6 10Styrene ND

1.7 10Bromoform ND

1.6 10Isopropyl Benzene ND

1.6 10n-Propylbenzene ND

1.8 10Bromobenzene ND

1.9 101,1,2,2-Tetrachloroethane ND

1.8 102-Chlorotoluene ND

1.6 101,3,5-Trimethylbenzene ND

1.9 101,2,3-Trichloropropane ND

1.6 104-Chlorotoluene ND

1.6 10tert-Butylbenzene ND

1.4 101,2,4-Trimethylbenzene ND

1.6 10sec-Butyl Benzene ND

1.5 10p-Isopropyltoluene ND

1.7 101,3-Dichlorobenzene ND

1.7 101,4-Dichlorobenzene ND

1.5 10n-Butylbenzene ND

1.8 101,2-Dichlorobenzene ND

1.8 101,2-Dibromo-3-Chloropropane ND

1.4 10Hexachlorobutadiene ND

1.5 101,2,4-Trichlorobenzene 1.9

1.7 10Naphthalene 6.6

1.7 101,2,3-Trichlorobenzene 2.4

1.7 102-Butanone 5.3

(S) Dibromofluoromethane 102

(S) Toluene-d8 105

(S) 4-Bromofluorobenzene 103

Page 38 of 49Total Page Count: 49

Page 181: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/L

11039195030VOC

Water 430669

1803314

3/31/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.26 0.50Dichlorodifluoromethane ND

0.17 0.50Chloromethane ND

0.21 0.50Vinyl Chloride ND

0.21 0.50Bromomethane ND

0.11 0.50Chloroethane ND

0.19 0.50Trichlorofluoromethane ND

0.14 0.501,1-Dichloroethene ND

0.34 0.50Freon 113 ND

0.13 0.50Methylene Chloride 0.15

0.16 0.50trans-1,2-Dichloroethene ND

0.077 0.50MTBE ND

7.4 10tert-Butanol ND

0.12 0.50Diisopropyl ether (DIPE) ND

0.12 0.501,1-Dichloroethane ND

0.064 0.50ETBE ND

0.15 0.50cis-1,2-Dichloroethene ND

0.094 0.502,2-Dichloropropane ND

0.15 0.50Bromochloromethane ND

0.12 0.50Chloroform ND

0.16 0.50Carbon Tetrachloride ND

0.16 0.501,1,1-Trichloroethane ND

0.19 0.501,1-Dichloropropene ND

0.16 0.50Benzene ND

0.072 0.50TAME ND

0.11 0.501,2-Dichloroethane ND

0.15 0.50Trichloroethylene ND

0.11 0.50Dibromomethane ND

0.089 0.501,2-Dichloropropane ND

0.076 0.50Bromodichloromethane ND

0.078 0.50cis-1,3-Dichloropropene ND

0.14 0.50Toluene ND

0.24 0.50Tetrachloroethylene ND

0.22 0.50trans-1,3-Dichloropropene ND

0.076 0.501,1,2-Trichloroethane ND

0.18 0.50Dibromochloromethane ND

0.22 0.501,3-Dichloropropane ND

0.079 0.501,2-Dibromoethane ND

0.16 0.50Chlorobenzene ND

0.20 0.50Ethyl Benzene ND

0.087 0.501,1,1,2-Tetrachloroethane ND

0.39 1.0m,p-Xylene ND

0.15 0.50o-Xylene ND

Page 39 of 49Total Page Count: 49

Page 182: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:ug/L

11039195030VOC

Water 430669

1803314

3/31/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.11 0.50Styrene ND

0.076 0.50Bromoform ND

0.22 0.50Isopropyl Benzene ND

0.30 0.50n-Propylbenzene ND

0.15 0.50Bromobenzene ND

0.079 0.501,1,2,2-Tetrachloroethane ND

0.25 0.502-Chlorotoluene ND

0.24 0.501,3,5-Trimethylbenzene ND

0.15 0.501,2,3-Trichloropropane ND

0.22 0.504-Chlorotoluene ND

0.26 0.50tert-Butylbenzene ND

0.23 0.501,2,4-Trimethylbenzene ND

0.30 0.50sec-Butyl Benzene ND

0.27 0.50p-Isopropyltoluene ND

0.17 0.501,3-Dichlorobenzene ND

0.18 0.501,4-Dichlorobenzene ND

0.27 0.50n-Butylbenzene ND

0.16 0.501,2-Dichlorobenzene ND

0.76 2.01,2-Dibromo-3-Chloropropane ND

0.62 2.0Hexachlorobutadiene ND

0.93 2.01,2,4-Trichlorobenzene ND

1.2 2.0Naphthalene ND

1.2 2.01,2,3-Trichlorobenzene ND

(S) Dibromofluoromethane 118

(S) Toluene-d8 101

(S) 4-Bromofluorobenzene 92.2

Page 40 of 49Total Page Count: 49

Page 183: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803314

4/3/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.2 10Dichlorodifluoromethane ND

1.8 10Chloromethane ND

2.0 10Vinyl Chloride ND

2.7 10Bromomethane ND

3.0 10Chloroethane ND

2.1 10Trichlorofluoromethane ND

2.0 101,1-Dichloroethene ND

1.9 10Freon 113 ND

7.1 10Methylene Chloride ND

2.1 10trans-1,2-Dichloroethene ND

2.3 10MTBE ND

12 50tert-Butanol ND

2.3 10Diisopropyl ether (DIPE) ND

2.2 101,1-Dichloroethane ND

2.3 10ETBE 5.5

2.2 10cis-1,2-Dichloroethene ND

1.9 102,2-Dichloropropane ND

2.3 10Bromochloromethane ND

2.4 10Chloroform ND

2.1 10Carbon Tetrachloride ND

2.1 101,1,1-Trichloroethane ND

2.0 101,1-Dichloropropene ND

2.2 10Benzene ND

2.3 10TAME 5.7

2.3 101,2-Dichloroethane ND

1.8 10Trichloroethylene ND

1.8 10Dibromomethane ND

1.9 101,2-Dichloropropane ND

2.0 10Bromodichloromethane ND

1.6 10cis-1,3-Dichloropropene ND

1.8 10Toluene ND

1.7 10Tetrachloroethylene ND

1.6 10trans-1,3-Dichloropropene ND

1.8 101,1,2-Trichloroethane ND

1.9 10Dibromochloromethane ND

1.8 101,3-Dichloropropane ND

1.8 101,2-Dibromoethane ND

1.8 10Chlorobenzene ND

1.7 10Ethyl Benzene ND

1.9 101,1,1,2-Tetrachloroethane ND

3.2 10m,p-Xylene ND

1.7 10o-Xylene ND

Page 41 of 49Total Page Count: 49

Page 184: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803314

4/3/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.6 10Styrene ND

1.7 10Bromoform ND

1.6 10Isopropyl Benzene ND

1.6 10n-Propylbenzene ND

1.8 10Bromobenzene ND

1.9 101,1,2,2-Tetrachloroethane ND

1.8 102-Chlorotoluene ND

1.6 101,3,5-Trimethylbenzene ND

1.9 101,2,3-Trichloropropane ND

1.6 104-Chlorotoluene ND

1.6 10tert-Butylbenzene ND

1.4 101,2,4-Trimethylbenzene ND

1.6 10sec-Butyl Benzene ND

1.5 10p-Isopropyltoluene ND

1.7 101,3-Dichlorobenzene ND

1.7 101,4-Dichlorobenzene ND

1.5 10n-Butylbenzene ND

1.8 101,2-Dichlorobenzene ND

1.8 101,2-Dibromo-3-Chloropropane ND

1.4 10Hexachlorobutadiene 1.4

1.5 101,2,4-Trichlorobenzene 1.9

1.7 10Naphthalene 6.9

1.7 101,2,3-Trichlorobenzene 2.5

1.7 102-Butanone 4.9

(S) Dibromofluoromethane 112

(S) Toluene-d8 104

(S) 4-Bromofluorobenzene 103

Page 42 of 49Total Page Count: 49

Page 185: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803314

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

120 1000Dichlorodifluoromethane ND

180 1000Chloromethane ND

200 1000Vinyl Chloride ND

270 1000Bromomethane ND

300 1000Chloroethane ND

210 1000Trichlorofluoromethane ND

200 10001,1-Dichloroethene ND

190 1000Freon 113 ND

710 1000Methylene Chloride ND

210 1000trans-1,2-Dichloroethene ND

230 1000MTBE ND

1200 5000tert-Butanol ND

230 1000Diisopropyl ether (DIPE) ND

220 10001,1-Dichloroethane ND

230 1000ETBE ND

220 1000cis-1,2-Dichloroethene ND

190 10002,2-Dichloropropane ND

230 1000Bromochloromethane ND

240 1000Chloroform ND

210 1000Carbon Tetrachloride ND

210 10001,1,1-Trichloroethane ND

200 10001,1-Dichloropropene ND

220 1000Benzene ND

230 1000TAME ND

230 10001,2-Dichloroethane ND

180 1000Trichloroethylene ND

180 1000Dibromomethane ND

190 10001,2-Dichloropropane ND

200 1000Bromodichloromethane ND

160 1000cis-1,3-Dichloropropene ND

180 1000Toluene ND

170 1000Tetrachloroethylene ND

160 1000trans-1,3-Dichloropropene ND

180 10001,1,2-Trichloroethane ND

190 1000Dibromochloromethane ND

180 10001,3-Dichloropropane ND

180 10001,2-Dibromoethane ND

180 1000Chlorobenzene ND

170 1000Ethyl Benzene ND

190 10001,1,1,2-Tetrachloroethane ND

320 1000m,p-Xylene ND

170 1000o-Xylene ND

Page 43 of 49Total Page Count: 49

Page 186: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803314

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

160 1000Styrene ND

170 1000Bromoform ND

160 1000Isopropyl Benzene ND

160 1000n-Propylbenzene ND

180 1000Bromobenzene ND

190 10001,1,2,2-Tetrachloroethane ND

180 10002-Chlorotoluene ND

160 10001,3,5-Trimethylbenzene ND

190 10001,2,3-Trichloropropane ND

160 10004-Chlorotoluene ND

160 1000tert-Butylbenzene ND

140 10001,2,4-Trimethylbenzene ND

160 1000sec-Butyl Benzene ND

150 1000p-Isopropyltoluene ND

170 10001,3-Dichlorobenzene ND

170 10001,4-Dichlorobenzene ND

150 1000n-Butylbenzene ND

180 10001,2-Dichlorobenzene ND

180 10001,2-Dibromo-3-Chloropropane ND

140 1000Hexachlorobutadiene ND

150 10001,2,4-Trichlorobenzene ND

170 1000Naphthalene 480

170 10001,2,3-Trichlorobenzene ND

170 10002-Butanone 710

(S) Dibromofluoromethane 106

(S) Toluene-d8 102

(S) 4-Bromofluorobenzene 104

Page 44 of 49Total Page Count: 49

Page 187: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:

5035 1103916

3/30/2018SW8260B 430683

ug/Kg

1803314

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

10 50.02.0 2.05 3053.7 - 1391,1-Dichloroethene 118 116ND

10 50.02.2 0.537 3066.5 - 135Benzene 112 111ND

10 50.01.8 1.98 3057.5 - 150Trichloroethylene 110 112ND

10 50.01.8 3.73 3056.8 - 134Toluene 110 115ND

10 50.01.8 3.55 3057.4 - 134Chlorobenzene 105 109ND

50.0 59.8 - 148(S) Dibromofluoromethane 104 106

50.0 55.2 - 133(S) Toluene-d8 104 109

50.0 55.8 - 141(S) 4-Bromofluorobenzene 101 107

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

03/30/18 Prep Batch:

Analytical

Batch:

5030VOC 1103919

3/31/2018SW8260B 430669

ug/L

1803314

Water

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.50 17.90.14 5.60 3061.4 - 1291,1-Dichloroethene 113 107ND

0.50 17.90.16 3.17 3066.9 - 140Benzene 107 104ND

0.50 17.90.15 6.45 3069.3 - 144Trichloroethylene 109 116ND

0.50 17.90.14 3.58 3076.6 - 123Toluene 107 111ND

0.50 17.90.16 2.14 3073.9 - 137Chlorobenzene 103 106ND

17.9 61.2 - 131(S) Dibromofluoromethane 116 113

17.9 75.1 - 127(S) Toluene-d8 109 108

17.9 64.1 - 120(S) 4-Bromofluorobenzene 99.9 99.0

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:

5035 1103933

4/3/2018SW8260B 430704

ug/Kg

1803314

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

10 50.02.0 8.35 3053.7 - 1391,1-Dichloroethene 105 96.4

10 50.02.2 8.24 3066.5 - 135Benzene 116 107

10 50.01.8 6.36 3057.5 - 150Trichloroethylene 101 94.4

10 50.01.8 7.52 3056.8 - 134Toluene 108 99.8

10 50.01.8 6.65 3057.4 - 134Chlorobenzene 106 98.7

50.0 59.8 - 148(S) Dibromofluoromethane 113 105

50.0 55.2 - 133(S) Toluene-d8 103 97.4

50.0 55.8 - 141(S) 4-Bromofluorobenzene 105 97.1

Page 45 of 49Total Page Count: 49

Page 188: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Laboratory Qualifiers and Definitions

Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte

concentration is greater than zero

Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and

analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc)

Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document

laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample

(sample duplicate, LCSD, MSD)

Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample

processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can

be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factorsand/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates

Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, butwhich is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen methodof analysis

Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined

compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention timeand primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg(equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % (

equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface)

B - Indicates when the analyte is found in the associated method or preparation blank

D - Surrogate is not recoverable due to the necessary dilution of the sample

E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted)

Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded

J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative

NA - Not Analyzed

N/A - Not Applicable

ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the

spike concentration added

R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts

S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a

case narrative

X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Page 46 of 49Total Page Count: 49

Page 189: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Sample Receipt Checklist

Client Name: Engeo (San Ramon)

Project Name: 282 S. Montgomery

Work Order No.: 1803314

Date and Time Received: 3/29/2018 5:40:00PM

Received By: Helena Ueng

Physically Logged By: Helena Ueng

Carrier Name: Client Drop Off

Checklist Completed By: Helena Ueng

Comments:

Chain of Custody (COC) Information

Shipping Container/Cooler In Good Condition?

Custody seals intact on shipping container/cooler?

Custody seals intact on sample bottles?

Chain of custody present?

Chain of custody signed when relinquished and received?

Chain of custody agrees with sample labels?

Samples in proper container/bottle?

Sufficient sample volume for indicated test?

All samples received within holding time?

Container/Temp Blank temperature in compliance?

Water-VOA vials have zero headspace?

Water-pH acceptable upon receipt?

Temperature:

Yes

Not Present

Not Present

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

N/A

Samples containers intact? Yes

°C

Sample Receipt Information

Sample Preservation and Hold Time (HT) Information

pH Checked by: N/A pH Adjusted by: N/A

7.0

Page 47 of 49Total Page Count: 49

Page 190: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Login Summary Report

Report Due Date:

3/29/2018

IIEngeo (San Ramon)TL5123

282 S. Montgomery

14121.001.000

4/3/2018

TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:

3 Day Std:3

5:40 pm

1803314Work Order # :

SubbedRequested

Tests

Test

On Hold

Sample

On Hold

Scheduled

Disposal

MatrixCollection

Date/Time

Client

Sample ID

WO Sample ID

[email protected]'1803314-001A Soil 09/25/1803/29/18 8:20

VOC_S_8260B

[email protected]'1803314-002A Soil 09/25/1803/29/18 8:45

VOC_S_8260B

[email protected]'1803314-003A Soil 09/25/1803/29/18 8:55

VOC_S_8260B

[email protected]'1803314-004A Soil 09/25/1803/29/18 10:20

VOC_S_8260B

[email protected]'1803314-005A Soil 09/25/1803/29/18 10:25

VOC_S_8260B

[email protected]'1803314-006A Soil 09/25/1803/29/18 10:46

VOC_S_8260B

[email protected]'1803314-007A Soil 09/25/1803/29/18 10:53

VOC_S_8260B

[email protected]'1803314-008A Soil 09/25/1803/29/18 12:00

VOC_S_8260B

[email protected]'1803314-009A Soil 09/25/1803/29/18 12:07

VOC_S_8260B

[email protected]'1803314-010A Soil 09/25/1803/29/18 12:12

VOC_S_8260B

[email protected]'1803314-011A Soil 09/25/1803/29/18 12:18

VOC_S_8260B

[email protected]'1803314-012A Soil 09/25/1803/29/18 12:21

VOC_S_8260B

[email protected]'1803314-013A Soil 09/25/1803/29/18 12:27

VOC_S_8260B

[email protected]'1803314-014A Soil 09/25/1803/29/18 10:32

VOC_S_8260B

[email protected]'1803314-015A Soil 09/25/1803/29/18 10:38

VOC_S_8260B

CW-GW1803314-016A Water 05/13/1803/29/18 7:15

VOC_W_8260B

Page 48 of 49Total Page Count: 49

Page 191: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Page 49 of 49Total Page Count: 49

Page 192: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Engeo (San Ramon)

2010 Crow Canyon Place,#250

San Ramon, California 94583

Tel: (925) 866-9000

Fax: (925) 866-0199

RE: 282 S. Montgomery

Torrent Laboratory, Inc. received 1 sample(s) on March 29, 2018 for the analyses presented i

the following Report.

Dear Divya Bhargava:

Work Order No.: 1803316

All data for associated QC met EPA or laboratory specification(s) except where noted in the

case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any

questions regarding these test results, please feel free to contact the Project Management

Date

April 03, 2018

Patti L Sandrock

QA Officer

Page 1 of 22Total Page Count: 22

Page 193: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Date: 4/3/2018

Client: Engeo (San Ramon)

Project: 282 S. Montgomery

Work Order: 1803316

CASE NARRATIVE

No issues encountered with the receiving, preparation, analysis or reporting of the results

associated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or field

blank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Analytic

Inc.

Page 2 of 22Total Page Count: 22

Page 194: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Report prepared for: Divya Bhargava

Engeo (San Ramon)

Date Received: 03/29/18

Date Reported: 04/03/18

Sample Result Summary

1803316-001DRUM1

Parameters: PQLMDL UnitResultsDFAnalysis

Method

Barium mg/Kg2355.000.0551SW6010B

Chromium mg/Kg44.15.000.0751SW6010B

Cobalt mg/Kg10.15.000.0701SW6010B

Copper mg/Kg25.35.000.201SW6010B

Nickel mg/Kg76.55.000.501SW6010B

Vanadium mg/Kg31.55.000.101SW6010B

Zinc mg/Kg65.05.000.301SW6010B

TPH as Diesel mg/Kg84.680341SW8015B

TPH as Motor Oil mg/Kg17104001301SW8015B

Tetrachloroethylene ug/Kg372508.35SW8260B

Page 3 of 22Total Page Count: 22

Page 195: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 13:00

14121.001.000

282 S. Montgomery

DRUM1

SoilSample Matrix:

Lab Sample ID: 1803316-001A

SDG:

Prep Batch ID: 1103898

Prep Batch Date/Time: 4/2/18 11:10:00AM

Prep Analyst: BJAY

Prep Method: 7471BP

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDMercury 04/02/180.083 0.501 mg/Kg 430689SW7471B 17:40 BJAY

Page 4 of 22Total Page Count: 22

Page 196: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 13:00

14121.001.000

282 S. Montgomery

DRUM1

SoilSample Matrix:

Lab Sample ID: 1803316-001A

SDG:

Prep Batch ID: 1103915

Prep Batch Date/Time: 4/2/18 8:00:00PM

Prep Analyst: PPATEL

Prep Method: 3050B

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDAntimony 04/03/180.050 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDArsenic 04/03/180.15 3.001 mg/Kg 430698SW6010B 12:29 PPATEL

235Barium 04/03/180.055 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDBeryllium 04/03/180.055 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDCadmium 04/03/180.10 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

44.1Chromium 04/03/180.075 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

10.1Cobalt 04/03/180.070 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

25.3Copper 04/03/180.20 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDLead 04/03/180.10 1.301 mg/Kg 430698SW6010B 12:29 PPATEL

NDMolybdenum 04/03/180.050 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

76.5Nickel 04/03/180.50 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDSelenium 04/03/180.22 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDSilver 04/03/180.15 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

NDThallium 04/03/180.20 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

31.5Vanadium 04/03/180.10 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

65.0Zinc 04/03/180.30 5.001 mg/Kg 430698SW6010B 12:29 PPATEL

Page 5 of 22Total Page Count: 22

Page 197: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 13:00

14121.001.000

282 S. Montgomery

DRUM1

SoilSample Matrix:

Lab Sample ID: 1803316-001A

SDG:

Prep Batch ID: 1103896

Prep Batch Date/Time: 4/2/18 12:57:00PM

Prep Analyst: SNARASIMHAN

Prep Method: 3546_TPH

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

x84.6TPH as Diesel 04/03/1834 801 mg/Kg 430676SW8015B 13:18 mk

1710TPH as Motor Oil 04/03/18130 4001 mg/Kg 430676SW8015B 13:18 mk

Acceptance Limits

D0.000Pentacosane (S) 04/03/18% 430676SW8015B 13:18 mk59 - 129

NOTE: x-Diesel value the result of overlap of Oil range into Diesel range

Page 6 of 22Total Page Count: 22

Page 198: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 13:00

14121.001.000

282 S. Montgomery

DRUM1

SoilSample Matrix:

Lab Sample ID: 1803316-001A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDDichlorodifluoromethane 04/03/186.1 505 ug/Kg 430704SW8260B 9:45 BP

NDChloromethane 04/03/189.1 505 ug/Kg 430704SW8260B 9:45 BP

NDVinyl Chloride 04/03/1810 505 ug/Kg 430704SW8260B 9:45 BP

NDBromomethane 04/03/1813 505 ug/Kg 430704SW8260B 9:45 BP

NDChloroethane 04/03/1815 505 ug/Kg 430704SW8260B 9:45 BP

NDTrichlorofluoromethane 04/03/1810 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 9:45 BP

NDFreon 113 04/03/189.4 505 ug/Kg 430704SW8260B 9:45 BP

NDMethylene Chloride 04/03/1836 505 ug/Kg 430704SW8260B 9:45 BP

NDtrans-1,2-Dichloroethene 04/03/1810 505 ug/Kg 430704SW8260B 9:45 BP

NDMTBE 04/03/1812 505 ug/Kg 430704SW8260B 9:45 BP

NDtert-Butanol 04/03/1858 2505 ug/Kg 430704SW8260B 9:45 BP

NDDiisopropyl ether (DIPE) 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1-Dichloroethane 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

NDETBE 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

NDcis-1,2-Dichloroethene 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

ND2,2-Dichloropropane 04/03/189.6 505 ug/Kg 430704SW8260B 9:45 BP

NDBromochloromethane 04/03/1812 505 ug/Kg 430704SW8260B 9:45 BP

NDChloroform 04/03/1812 505 ug/Kg 430704SW8260B 9:45 BP

NDCarbon Tetrachloride 04/03/1810 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1,1-Trichloroethane 04/03/1810 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1-Dichloropropene 04/03/189.9 505 ug/Kg 430704SW8260B 9:45 BP

NDBenzene 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

NDTAME 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2-Dichloroethane 04/03/1812 505 ug/Kg 430704SW8260B 9:45 BP

NDTrichloroethylene 04/03/189.0 505 ug/Kg 430704SW8260B 9:45 BP

NDDibromomethane 04/03/189.2 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2-Dichloropropane 04/03/189.3 505 ug/Kg 430704SW8260B 9:45 BP

NDBromodichloromethane 04/03/189.8 505 ug/Kg 430704SW8260B 9:45 BP

NDcis-1,3-Dichloropropene 04/03/188.0 505 ug/Kg 430704SW8260B 9:45 BP

NDToluene 04/03/189.1 505 ug/Kg 430704SW8260B 9:45 BP

372Tetrachloroethylene 04/03/188.3 505 ug/Kg 430704SW8260B 9:45 BP

NDtrans-1,3-Dichloropropene 04/03/188.2 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1,2-Trichloroethane 04/03/189.2 505 ug/Kg 430704SW8260B 9:45 BP

NDDibromochloromethane 04/03/189.4 505 ug/Kg 430704SW8260B 9:45 BP

ND1,3-Dichloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 9:45 BP

Page 7 of 22Total Page Count: 22

Page 199: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 13:00

14121.001.000

282 S. Montgomery

DRUM1

SoilSample Matrix:

Lab Sample ID: 1803316-001A

SDG:

Prep Batch ID: 1103933

Prep Batch Date/Time: 4/3/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

ND1,2-Dibromoethane 04/03/189.0 505 ug/Kg 430704SW8260B 9:45 BP

NDChlorobenzene 04/03/189.1 505 ug/Kg 430704SW8260B 9:45 BP

NDEthyl Benzene 04/03/188.3 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1,1,2-Tetrachloroethane 04/03/189.7 505 ug/Kg 430704SW8260B 9:45 BP

NDm,p-Xylene 04/03/1816 505 ug/Kg 430704SW8260B 9:45 BP

NDo-Xylene 04/03/188.6 505 ug/Kg 430704SW8260B 9:45 BP

NDStyrene 04/03/188.2 505 ug/Kg 430704SW8260B 9:45 BP

NDBromoform 04/03/188.4 505 ug/Kg 430704SW8260B 9:45 BP

NDIsopropyl Benzene 04/03/188.1 505 ug/Kg 430704SW8260B 9:45 BP

NDn-Propylbenzene 04/03/187.8 505 ug/Kg 430704SW8260B 9:45 BP

NDBromobenzene 04/03/188.8 505 ug/Kg 430704SW8260B 9:45 BP

ND1,1,2,2-Tetrachloroethane 04/03/189.6 505 ug/Kg 430704SW8260B 9:45 BP

ND2-Chlorotoluene 04/03/188.8 505 ug/Kg 430704SW8260B 9:45 BP

ND1,3,5-Trimethylbenzene 04/03/187.9 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2,3-Trichloropropane 04/03/189.5 505 ug/Kg 430704SW8260B 9:45 BP

ND4-Chlorotoluene 04/03/188.2 505 ug/Kg 430704SW8260B 9:45 BP

NDtert-Butylbenzene 04/03/188.1 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2,4-Trimethylbenzene 04/03/186.8 505 ug/Kg 430704SW8260B 9:45 BP

NDsec-Butyl Benzene 04/03/187.8 505 ug/Kg 430704SW8260B 9:45 BP

NDp-Isopropyltoluene 04/03/187.3 505 ug/Kg 430704SW8260B 9:45 BP

ND1,3-Dichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 9:45 BP

ND1,4-Dichlorobenzene 04/03/188.6 505 ug/Kg 430704SW8260B 9:45 BP

NDn-Butylbenzene 04/03/187.3 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2-Dichlorobenzene 04/03/188.9 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2-Dibromo-3-Chloropropane 04/03/189.2 505 ug/Kg 430704SW8260B 9:45 BP

NDHexachlorobutadiene 04/03/186.8 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2,4-Trichlorobenzene 04/03/187.4 505 ug/Kg 430704SW8260B 9:45 BP

NDNaphthalene 04/03/188.4 505 ug/Kg 430704SW8260B 9:45 BP

ND1,2,3-Trichlorobenzene 04/03/188.3 505 ug/Kg 430704SW8260B 9:45 BP

ND2-Butanone 04/03/1811 505 ug/Kg 430704SW8260B 9:45 BP

S24.5(S) Dibromofluoromethane 04/03/18% 430704SW8260B 9:45 BP59.8 - 148

116(S) Toluene-d8 04/03/18% 430704SW8260B 9:45 BP55.2 - 133

92.8(S) 4-Bromofluorobenzene 04/03/18% 430704SW8260B 9:45 BP55.8 - 141

NOTE: S – Surrogate recovery out of limits .Rerun of the sample with dilution yielded similar results indicating a matrix effect.

Page 8 of 22Total Page Count: 22

Page 200: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

SAMPLE RESULTS

Report prepared for:

Date Reported: 04/03/18

Date/Time Received: 03/29/18, 5:40 pm

Engeo (San Ramon)

Divya Bhargava

Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:

03/29/18 / 13:00

14121.001.000

282 S. Montgomery

DRUM1

SoilSample Matrix:

Lab Sample ID: 1803316-001A

SDG:

Prep Batch ID: 1103947

Prep Batch Date/Time: 4/2/18 12:47:00AM

Prep Analyst: BPATEL

Prep Method: 5035GRO

Parameters:

Analytical

BatchUnitsQ

ResultsPQLMDLDF

Analyzed

Analysis

Method Time By

NDTPH(Gasoline) 04/03/18220 5005 ug/Kg 4307048260TPH 9:11 BP

77.9(S) 4-Bromofluorobenzene 04/03/18% 4307048260TPH 9:11 BP43.9 - 127

Page 9 of 22Total Page Count: 22

Page 201: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8015BAnalytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:mg/Kg

11038963546_TPH

Soil 430676

1803316

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.85 2.0TPH as Diesel ND

3.2 10TPH as Motor Oil ND

Pentacosane (S) 118

Work Order:

Matrix:

Units:

Prep Method:

SW7471BAnalytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:mg/Kg

11038987471BP

Soil 430689

1803316

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.083 0.50Mercury ND

Work Order:

Matrix:

Units:

Prep Method:

SW6010BAnalytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:mg/Kg

11039153050B

Soil 430698

1803316

4/3/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

0.050 5.00Antimony 0.94

0.15 1.30Arsenic ND

0.055 5.00Barium 0.56

0.055 5.00Beryllium ND

0.10 5.00Cadmium ND

0.075 5.00Chromium 0.50

0.070 5.00Cobalt ND

0.20 5.00Copper 0.53

0.10 1.30Lead ND

0.050 5.00Molybdenum 0.79

0.50 5.00Nickel ND

0.22 5.00Selenium 2.1

0.15 5.00Silver ND

0.20 5.00Thallium 0.35

0.10 5.00Vanadium 0.15

0.30 5.00Zinc ND

Page 10 of 22Total Page Count: 22

Page 202: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803316

4/3/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.2 10Dichlorodifluoromethane ND

1.8 10Chloromethane ND

2.0 10Vinyl Chloride ND

2.7 10Bromomethane ND

3.0 10Chloroethane ND

2.1 10Trichlorofluoromethane ND

2.0 101,1-Dichloroethene ND

1.9 10Freon 113 ND

7.1 10Methylene Chloride ND

2.1 10trans-1,2-Dichloroethene ND

2.3 10MTBE ND

12 50tert-Butanol ND

2.3 10Diisopropyl ether (DIPE) ND

2.2 101,1-Dichloroethane ND

2.3 10ETBE 5.5

2.2 10cis-1,2-Dichloroethene ND

1.9 102,2-Dichloropropane ND

2.3 10Bromochloromethane ND

2.4 10Chloroform ND

2.1 10Carbon Tetrachloride ND

2.1 101,1,1-Trichloroethane ND

2.0 101,1-Dichloropropene ND

2.2 10Benzene ND

2.3 10TAME 5.7

2.3 101,2-Dichloroethane ND

1.8 10Trichloroethylene ND

1.8 10Dibromomethane ND

1.9 101,2-Dichloropropane ND

2.0 10Bromodichloromethane ND

1.6 10cis-1,3-Dichloropropene ND

1.8 10Toluene ND

1.7 10Tetrachloroethylene ND

1.6 10trans-1,3-Dichloropropene ND

1.8 101,1,2-Trichloroethane ND

1.9 10Dibromochloromethane ND

1.8 101,3-Dichloropropane ND

1.8 101,2-Dibromoethane ND

1.8 10Chlorobenzene ND

1.7 10Ethyl Benzene ND

1.9 101,1,1,2-Tetrachloroethane ND

3.2 10m,p-Xylene ND

Page 11 of 22Total Page Count: 22

Page 203: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803316

4/3/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

1.7 10o-Xylene ND

1.6 10Styrene ND

1.7 10Bromoform ND

1.6 10Isopropyl Benzene ND

1.6 10n-Propylbenzene ND

1.8 10Bromobenzene ND

1.9 101,1,2,2-Tetrachloroethane ND

1.8 102-Chlorotoluene ND

1.6 101,3,5-Trimethylbenzene ND

1.9 101,2,3-Trichloropropane ND

1.6 104-Chlorotoluene ND

1.6 10tert-Butylbenzene ND

1.4 101,2,4-Trimethylbenzene ND

1.6 10sec-Butyl Benzene ND

1.5 10p-Isopropyltoluene ND

1.7 101,3-Dichlorobenzene ND

1.7 101,4-Dichlorobenzene ND

1.5 10n-Butylbenzene ND

1.8 101,2-Dichlorobenzene ND

1.8 101,2-Dibromo-3-Chloropropane ND

1.4 10Hexachlorobutadiene 1.4

1.5 101,2,4-Trichlorobenzene 1.9

1.7 10Naphthalene 6.9

1.7 101,2,3-Trichlorobenzene 2.5

1.7 102-Butanone 4.9

(S) Dibromofluoromethane 112

(S) Toluene-d8 104

(S) 4-Bromofluorobenzene 103

Page 12 of 22Total Page Count: 22

Page 204: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803316

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

120 1000Dichlorodifluoromethane ND

180 1000Chloromethane ND

200 1000Vinyl Chloride ND

270 1000Bromomethane ND

300 1000Chloroethane ND

210 1000Trichlorofluoromethane ND

200 10001,1-Dichloroethene ND

190 1000Freon 113 ND

710 1000Methylene Chloride ND

210 1000trans-1,2-Dichloroethene ND

230 1000MTBE ND

1200 5000tert-Butanol ND

230 1000Diisopropyl ether (DIPE) ND

220 10001,1-Dichloroethane ND

230 1000ETBE ND

220 1000cis-1,2-Dichloroethene ND

190 10002,2-Dichloropropane ND

230 1000Bromochloromethane ND

240 1000Chloroform ND

210 1000Carbon Tetrachloride ND

210 10001,1,1-Trichloroethane ND

200 10001,1-Dichloropropene ND

220 1000Benzene ND

230 1000TAME ND

230 10001,2-Dichloroethane ND

180 1000Trichloroethylene ND

180 1000Dibromomethane ND

190 10001,2-Dichloropropane ND

200 1000Bromodichloromethane ND

160 1000cis-1,3-Dichloropropene ND

180 1000Toluene ND

170 1000Tetrachloroethylene ND

160 1000trans-1,3-Dichloropropene ND

180 10001,1,2-Trichloroethane ND

190 1000Dibromochloromethane ND

180 10001,3-Dichloropropane ND

180 10001,2-Dibromoethane ND

180 1000Chlorobenzene ND

170 1000Ethyl Benzene ND

190 10001,1,1,2-Tetrachloroethane ND

320 1000m,p-Xylene ND

Page 13 of 22Total Page Count: 22

Page 205: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

MB Summary Report

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:ug/Kg

11039335035

Soil 430704

1803316

4/2/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

170 1000o-Xylene ND

160 1000Styrene ND

170 1000Bromoform ND

160 1000Isopropyl Benzene ND

160 1000n-Propylbenzene ND

180 1000Bromobenzene ND

190 10001,1,2,2-Tetrachloroethane ND

180 10002-Chlorotoluene ND

160 10001,3,5-Trimethylbenzene ND

190 10001,2,3-Trichloropropane ND

160 10004-Chlorotoluene ND

160 1000tert-Butylbenzene ND

140 10001,2,4-Trimethylbenzene ND

160 1000sec-Butyl Benzene ND

150 1000p-Isopropyltoluene ND

170 10001,3-Dichlorobenzene ND

170 10001,4-Dichlorobenzene ND

150 1000n-Butylbenzene ND

180 10001,2-Dichlorobenzene ND

180 10001,2-Dibromo-3-Chloropropane ND

140 1000Hexachlorobutadiene ND

150 10001,2,4-Trichlorobenzene ND

170 1000Naphthalene 480

170 10001,2,3-Trichlorobenzene ND

170 10002-Butanone 710

(S) Dibromofluoromethane 106

(S) Toluene-d8 102

(S) 4-Bromofluorobenzene 104

Work Order:

Matrix:

Units:

Prep Method:

SW8260BAnalytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:ug/Kg

11039475035GRO

Soil 430704

1803316

4/3/2018

Parameters

Method

Blank

Conc.

PQL MDL

Lab

Qualifier

43 100TPH(Gasoline) 97

(S) 4-Bromofluorobenzene 97.0

Page 14 of 22Total Page Count: 22

Page 206: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:

3546_TPH 1103896

4/2/2018SW8015B 430676

mg/Kg

1803316

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

2.0 25.00.85 5.35 3052 - 115TPH as Diesel 72.7 76.8ND

200 59 - 129Pentacosane (S) 103 117

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:

7471BP 1103898

4/2/2018SW7471B 430689

mg/Kg

1803316

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

0.50 1.250.047 0.922 3080 - 120Mercury 86.6 86.9ND

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:

3050B 1103915

4/3/2018SW6010B 430698

mg/Kg

1803316

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

5.00 500.050 0.816 3080 - 120Antimony 97.6 98.40.94

1.30 500.15 0.203 3080 - 120Arsenic 98.5 98.8ND

5.00 500.055 0.771 3080 - 120Barium 103 1040.56

5.00 500.055 2.41 3080 - 120Beryllium 98.3 101ND

5.00 500.10 1.63 3080 - 120Cadmium 97.1 98.8ND

5.00 500.075 0.196 3080 - 120Chromium 102 1020.50

5.00 500.070 2.81 3080 - 120Cobalt 98.2 101ND

5.00 500.20 1.15 3080 - 120Copper 105 1040.53

3.00 500.10 3.53 3080 - 120Lead 94.7 98.0ND

5.00 500.050 4.57 3080 - 120Molybdenum 103 98.50.79

5.00 500.50 2.82 3080 - 120Nickel 98.1 101ND

5.00 500.22 1.82 3080 - 120Selenium 99.8 98.02.1

5.00 500.15 2.46 3080 - 120Silver 96.2 98.6ND

5.00 500.20 1.66 3080 - 120Thallium 96.9 95.30.35

5.00 500.10 2.18 3080 - 120Vanadium 102 99.60.15

5.00 500.30 0.811 3080 - 120Zinc 98.2 99.0ND

Page 15 of 22Total Page Count: 22

Page 207: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

LCS/LCSD Summary ReportRaw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/03/18 Prep Batch:

Analytical

Batch:

5035 1103933

4/3/2018SW8260B 430704

ug/Kg

1803316

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

10 50.02.0 8.35 3053.7 - 1391,1-Dichloroethene 105 96.4

10 50.02.2 8.24 3066.5 - 135Benzene 116 107

10 50.01.8 6.36 3057.5 - 150Trichloroethylene 101 94.4

10 50.01.8 7.52 3056.8 - 134Toluene 108 99.8

10 50.01.8 6.65 3057.4 - 134Chlorobenzene 106 98.7

50.0 59.8 - 148(S) Dibromofluoromethane 113 105

50.0 55.2 - 133(S) Toluene-d8 103 97.4

50.0 55.8 - 141(S) 4-Bromofluorobenzene 105 97.1

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed Date:

04/02/18 Prep Batch:

Analytical

Batch:

5035GRO 1103947

4/3/2018SW8260B 430704

ug/Kg

1803316

Soil

Parameters MDL PQL

Method

Blank

Conc.

Spike

Conc.

LCS %

Recovery

LCSD %

Recovery

LCS/LCSD

% RPD

%

Recovery

Limits

% RPD

Limits

Lab

Qualifier

100 100043 16.4 3048.2 - 132TPH(Gasoline) 83.6 98.597

50 43.9 - 127(S) 4-Bromofluorobenzene 105 103

Page 16 of 22Total Page Count: 22

Page 208: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Duplicate QC Summary Report

Work Order:

Matrix:

Units:

Prep Method:

Analytical

Method:

Prep Date:

Analyzed

Date:

4/2/2018 Prep Batch:

Analytical

Batch:

04/03/18

1803316

Lab Sample ID: 1803316-001A-DUP-1103915

3050B 1103915

430698SW6010B

Parameters PQL MDL Sample

Result

Duplicate

Result

% RPD

Antimony 0.050 5.00 0.000.000 ND

Arsenic 0.15 5.00 0.000.000 ND

Barium 0.055 5.00 0.30235 236

Beryllium 0.055 5.00 0.000.000 ND

Cadmium 0.10 5.00 0.000.000 ND

Chromium 0.075 5.00 7.9244.1 40.8

Cobalt 0.070 5.00 4.0410.1 9.70

Copper 0.20 5.00 13.3025.3 28.9

Lead 0.10 5.00 0.000.000 ND

Molybdenum 0.050 5.00 0.000.000 ND

Nickel 0.50 5.00 20.8076.5 62.1

Selenium 0.22 5.00 0.000.000 ND

Silver 0.15 5.00 0.000.000 ND

Thallium 0.20 5.00 0.000.000 ND

Vanadium 0.10 5.00 0.9231.5 31.8

Zinc 0.30 5.00 19.6065.0 79.1

Page 17 of 22Total Page Count: 22

Page 209: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Laboratory Qualifiers and Definitions

Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte

concentration is greater than zero

Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and

analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc)

Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document

laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample

(sample duplicate, LCSD, MSD)

Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample

processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that

can be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation

factors and/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates

Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, but

which is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen

method of analysis

Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined

compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention time

and primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg(equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % (

equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface)

B - Indicates when the analyte is found in the associated method or preparation blank

D - Surrogate is not recoverable due to the necessary dilution of the sample

E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted)

Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded

J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative

NA - Not Analyzed

N/A - Not Applicable

ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the

spike concentration added

R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts

S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within

a case narrative

X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Page 18 of 22Total Page Count: 22

Page 210: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Sample Receipt Checklist

Client Name: Engeo (San Ramon)

Project Name: 282 S. Montgomery

Work Order No.: 1803316

Date and Time Received: 3/29/2018 5:40:00PM

Received By: Helena Ueng

Physically Logged By: Helena Ueng

Carrier Name: Client Drop Off

Checklist Completed By: Helena Ueng

Comments:

Chain of Custody (COC) Information

Shipping Container/Cooler In Good Condition?

Custody seals intact on shipping container/cooler?

Custody seals intact on sample bottles?

Chain of custody present?

Chain of custody signed when relinquished and received?

Chain of custody agrees with sample labels?

Samples in proper container/bottle?

Sufficient sample volume for indicated test?

All samples received within holding time?

Container/Temp Blank temperature in compliance?

Water-VOA vials have zero headspace?

Water-pH acceptable upon receipt?

Temperature:

Yes

Not Present

Not Present

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No VOA vials submitted

N/A

Samples containers intact? Yes

°C

Sample Receipt Information

Sample Preservation and Hold Time (HT) Information

pH Checked by: N/A pH Adjusted by: N/A

7.0

Page 19 of 22Total Page Count: 22

Page 211: GEOTECHNICAL ENVIRONMENTAL WATER RESOURCES CONSTRUCTION

Login Summary Report

Report Due Date:

3/29/2018

IIEngeo (San Ramon)TL5123

282 S. Montgomery

14121.001.000

4/3/2018

TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:

3 Day Std:3

5:40 pm

1803316Work Order # :

SubbedRequested

Tests

Test

On Hold

Sample

On Hold

Scheduled

Disposal

MatrixCollection

Date/Time

Client

Sample ID

WO Sample ID

DRUM11803316-001A Soil 09/25/1803/29/18 13:00

VOC_S_8260B

TPHDO_S_8015(Mod

)Hg_S_7471B

Met_S_6010B CAM17

VOC_S_GRO

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