engineering and construction division limited phase ii
TRANSCRIPT
TEXAS BOARD OF PROFESSIONAL ENGINEERS
REGISTRATION NUMBER F-001183
CITY OF HOUSTON DEPARTMENT OF PUBLIC WORKS AND ENGINEERING
ENGINEERING AND CONSTRUCTION DIVISION
LIMITED PHASE II ENVIRONMENTAL SITE ASSESSMENT FACILITIES CONSOLIDATION
CHELFORD CITY DIVERSION PACKAGE I WBS NO. R-000536-0024-3
CITY OF HOUSTON, TEXAS
TO
HAZEN AND SAWYER HOUSTON, TEXAS
BY
GEOTECH ENGINEERING AND TESTING
SERVICING
TEXAS, LOUISIANA, NEW MEXICO, OKLAHOMA
PROJECT NO. 15-782E
AUGUST 2016
www.geotecheng.com
i GEOTECH ENGINEERING AND TESTING
TABLE OF CONTENTS
PAGE ABBREVIATIONS ...............................................................................................................................1 1.0 EXECUTIVE SUMMARY .......................................................................................................2 2.0 INTRODUCTION .....................................................................................................................3 3.0 FIELD EXPLORATION ...........................................................................................................3
3.1 Drilling and Sampling ....................................................................................................3 3.2 Photoionization Detector (PID) Field Testing ...............................................................4 3.3 Decontamination ............................................................................................................4 3.4 Groundwater Sampling ..................................................................................................4 3.5 Borehole Grouting .........................................................................................................4 3.6 Sample Disposal.............................................................................................................4 3.7 Soil and Groundwater Samples ......................................................................................4
4.0 LABORATORY TESTS ...........................................................................................................5
4.1 Chemical Testing ...........................................................................................................5 4.2 Sample Storage ..............................................................................................................5
5.0 GENERAL SOILS CONDITIONS ...........................................................................................5
5.1 Site Conditions ...............................................................................................................5 6.0 ANALYSIS OF THE CHEMICAL TESTS ..............................................................................5
6.1 General ...........................................................................................................................5 6.2 Results of the Limited Chemical Tests ..........................................................................6
6.2.1 Total Petroleum Hydrocarbons (TPHs) .............................................................6 6.2.2 Benzene, Toluene, Ethylbenzene and Xylenes (BTEX) ....................................6 6.2.3 Methyl tert-Butyl Ether (MTBE) .......................................................................7
7.0 CONCLUSIONS........................................................................................................................8 8.0 RECOMMENDATIONS ...........................................................................................................8 9.0 QUALIFICATION OF ENVIRONMENTAL PROFESSIONALS ..........................................9 10.0 LIMITATIONS ..........................................................................................................................9 11.0 STANDARD OF CARE ............................................................................................................9 12.0 REPORT DISTRIBUTION .......................................................................................................9
ii GEOTECH ENGINEERING AND TESTING
ILLUSTRATIONS
Plate Site Vicinity Map 1 Plan of Borings 2
APPENDICES
Appendix A – Logs of Borings and Key to Log Terms and Symbols Appendix B – Results of Limited Chemical Testing by A & B Labs with Chain of Custody
Records Appendix C – Project Site Pictures Appendix D – Qualifications of Environmental Professionals
Project No. 15-782E 1 GEOTECH ENGINEERING AND TESTING
ABBREVIATIONS AOC Area of Concern
APAR Affected Property Assessment Report
BTEX Benzene, Toluene, Ethylbenzene, and Xylene
COCs or COC Chemicals of Concern or Chemical of Concern
COH City of Houston
ESA Environmental Site Assessment
LPST Leaking Petroleum Storage Tank
mg/kg Miligrams per Kilogram. A measure of soils or sediment COC concentration. Could also be expressed as parts per million (ppm)
mg/L Milligrams per Liter. A measure of groundwater COC concentration. Could also be expressed as parts per million (ppm)
MTBE Methyl tert-Butyl Ether
ND Not Detected at the Reporting Limit
OVA Organic Vapor Analyzer
PAHs Polycylic Aromatic Hydrocarbons
PCL Protective Concentration Level
pH A measure of a substance’s acidity or alkalinity
PST Petroleum Storage Tank. Could also be used as AST (Above-ground Storage Tank) or UST (Underground Storage Tank)
RCRA Metals Resource Conservation and Recovery Act Metals (A suite of analysis for the following eight metals – arsenic, barium, cadmium, chromium, lead, mercury, silver, and selenium)
REC Recognized Environmental Condition
SPLP Synthetic Precipitation Leaching Procedure
TCEQ Texas Commission on Environmental Quality
TMW Temporary Monitoring Well
TPH Total Petroleum Hydrocarbons
TRRP Texas Risk Reduction Program
TSBC Texas Specific Background Concentration
VCP Voluntary Cleanup Program
VOC Volatile Organic Compound
Project No. 15-782E 2 GEOTECH ENGINEERING AND TESTING
1.0 EXECUTIVE SUMMARY
It is planned to construct sewer line from Westpark Drive to Alief Central Lift Station in the City of Houston, Texas. The total length of the sewer line is about 5,700 linear feet. A site vicinity map is presented on Plate 1. The project alignment is located in 488 Y key maps of Harris County, Texas. Based on the results of Phase I Environmental Site Assessment, prepared by Geotech Engineering and Testing (GET Report No. 13-1024E, dated August 19, 2015), portions of the project alignment near the intersection of Westpark Drive and Village Gate Drive have recognized environmental conditions (RECs). Therefore, a Limited Phase II Environmental Site Assessment (ESA) was conducted to evaluate the presence of hydrocarbon contamination along the proposed project alignment near the Areas of Concern (AOC). The purpose of our assessment was to estimate the degree of hydrocarbon in the subsoil and groundwater near the AOC. The following is a summary of our Limited Phase II ESA: 1. The subsoils and groundwater conditions were evaluated by conducting three (3) auger borings
(Borings B-1 through B-3) to a depth of 30 feet below the existing grade along the project alignment near the AOC.
2. A Photoionization Detector (PID) was used to estimate the degree of organic vapor contamination in the soils at the boring locations.
3. Selected soil and groundwater samples were tested for Total Petroleum Hydrocarbons (TPH), Benzene, Toluene, Ethylbenzene and Xylene (BTEX) and Methyl tert-Butyl Ether (MTBE) analysis tests.
4. Based on the limited laboratory chemical testing, all selected soil samples from the respective
boring locations have TPH, BTEX and MTBE concentrations Below the Reporting Limit (BRL), except the soil sample collected from Boring B-3 (9ft-10ft), which has TPH (C28-C35) concentration level of 34 mg/kg but is lower than the Texas Commission on Environmental Quality (TCEQ) Regulatory Guidelines – Texas Risk Reduction Program (TRRP) Tier 1 Residential Protective Concentration Levels (PCLs), Exposure Pathways GWSoilIng concentration level of 200 mg/kg.
5. Our limited chemical testing on the groundwater sample obtained from Boring B-2 indicated that
the TPH (C6-C12), (C12-C28) BTEX and MTBE concentrations are below the Reporting Limit (BRL). The concentration of TPH (C28-C35) in the water sample is 3.27 mg/L, which is higher than the Texas Commission on Environmental Quality (TCEQ) Regulatory Guidelines – Texas Risk Reduction Program (TRRP) Tier 1 Residential Protective Concentration Levels (PCLs), Exposure Pathway GWGWIng
concentration level of 0.98 mg/L. 6. Due to presence of Chemical of Concerns (COCs) in groundwater sample collected from
Boring B-2 and soil sample collected from Boring B-3, the planned construction area at 13100 Westpark Drive (Easement Station 1+49.55 to Easement Station 3+00) should be declared as a Potentially Petroleum Contaminated Area (PPCA) in accordance with the City of Houston Specification No. 02105.
7. Please refer to the City of Houston’s Specifications Nos. 02120 and 02105 for additional
details regarding the excavation, stockpile, dewatering and construction worker health and safety requirements.
Project No. 15-782E 3 GEOTECH ENGINEERING AND TESTING
2.0 INTRODUCTION 2.1 General
It is planned to construct sewer line from Westpark Drive to Alief Central Lift Station in the City of Houston, Texas. The total length of the sewer line is about 5,700 linear feet. A site vicinity map is presented on Plate 1. The project alignment is located in 488 Y key maps of Harris County, Texas. Based on the results of Phase I Environmental Site Assessment, prepared by Geotech Engineering and Testing (GET Report No. 13-1024E, dated August 19, 2015), portions of the project alignment near the intersection of Westpark Drive and Village Gate Drive have recognized environmental conditions (RECs). The results of Phase I Environmental Site Assessment indicated the following REC’s along the project alignment:
REC Location REC No.
Historical Auto Station Site – located at 13100 Westpark Drive, Houston, Texas 1
Historical Auto Station Site – located at 3203 S. Dairy Ashford Road , Houston, Texas 2 Based on our discussion with Hazen and Sawyer, REC-2 will not be considered in this Phase II ESA since it is not within the revised project alignment. Only REC-1 is relevant to the alignment from Westpark Drive to Alief Central Lift Station. The purpose of our assessment was to estimate the degree of hydrocarbon contamination in the subsoils near the AOC.
3.0 FIELD EXPLORATION 3.1 Drilling and Sampling
We investigated potential contaminations of the subsoils and groundwater by conducting three (3) auger borings to a completion depth of 30 feet below the existing grade along the project alignment near the AOC. The approximate boring locations are stated below and shown on Plate 2. The specific boring locations are as follows:
Alignment/Boring Location Boring Number
13100 Westpark Drive, Houston, Texas (REC-1) B-1 through B-3 Soil samples were obtained continuously at the boring locations from the ground surface to the completion depth of the borings at 30 feet.
Soil samples were examined and classified in the field. This data is presented on the logs of borings on Plates A-1 through A-3 in Appendix A. A key to the log terms and symbols is given on Plate A-4 in Appendix A.
Project No. 15-782E 4 GEOTECH ENGINEERING AND TESTING
3.2 Photoionization Detector (PID) Field Testing
A PID was used to estimate the degree of hydrocarbon contamination in the soils in the field. Soil samples were obtained and put in airtight sealable plastic bags for approximately twenty (20) minutes to allow the organic vapors volatilize. At the end of this period, the headspace inside the plastic bag was screened with PID by inserting the PID probe tip into a narrow opening in the plastic bag seal. The PID field readings are presented on the logs of borings in Appendix A.
3.3 Decontamination
All the sampling tools and equipments were generally decontaminated in accordance with TCEQ Standard Operating Procedure – Decontamination (SOP 1.5). All tools and equipment were rinsed with pressured water and then cleaned with brush in a solution of laboratory grade detergent (Alconox) and again rinsed with pressured water in order to reduce any cross contamination between the borings.
3.4 Groundwater Sampling
Groundwater was encountered at Boring B-2. The groundwater sample was collected and stored in clean, laboratory-provided sample containers and kept in a cooler filled with ice for transfer to the chemical testing laboratory.
3.5 Borehole Grouting
After drilling and sampling, the boreholes were backfilled with cement-bentonite grout. 3.6 Sample Disposal
Soil cuttings from the drilling operation during drilling and sampling were placed in heavy duty trash bags in the field. These bags were later placed in 55-gallon drums at the GET facility. The soil cuttings will be discarded as general waste, since the results of limited laboratory chemical testing on selected soil samples from Borings B-1 through B-3 showed no recognized level of contamination for chemicals of concern (COC). Furthermore, no excess groundwater was collected that required disposal.
3.7 Soil and Groundwater Samples
The soil and groundwater samples were placed in laboratory-provided glass jars and vials in the field, labeled and placed in an ice-filled cooler. After chain of custody procedures were followed to maintain and document possession, the samples were transported to A&B Environmental Services, Inc. for limited chemical testing.
Project No. 15-782E 5 GEOTECH ENGINEERING AND TESTING
4.0 LABORATORY TESTS 4.1 Chemical Testing
Chemical tests were performed on selected soil and groundwater samples. The chemical tests consisted of Total Petroleum Hydrocarbons (TPH), Benzene, Toluene, Ethylbenzene and Xylene (BTEX) and Methyl tert-Butyl Ether (MTBE). A & B Labs performed these chemical analysis tests under a subcontract to GET. The test results are presented in Appendix B of this report.
4.2 Sample Storage
All samples tested or not tested will be stored for a period of 60 days subsequent to submittal of this report. The samples will be discarded as general waste after this period, unless we are instructed otherwise. Furthermore, no excess groundwater was collected that required disposal.
5.0 GENERAL SOILS CONDITIONS 5.1 Site Conditions
The project location is located at 13100 Westpark Drive in the City of Houston, Texas. Currently, the project alignment is covered with grass.
In general, residential and commercial developments are located in the vicinity of the project alignment. Pictures of the project alignment were taken during our site visit. These pictures are presented in Appendix C.
6.0 ANALYSIS OF THE CHEMICAL TESTS 6.1 General
Laboratory tests were conducted on selected soils and groundwater samples obtained from the borings. The TPH, BTEX and MTBE analyses were conducted on selected soils and groundwater samples to evaluate the subsoil and groundwater contamination at the boring locations. Our testing focused on analysis for hydrocarbons in soils and groundwater samples. A list of selected soils and groundwater samples tested is as follows:
Borings No.
Depth Range, ft
Sample Matrix
Chemical Tests
TPH BTEX MTBE
B-1 18 – 19 Soil √ √ √
B-1 23 – 24 Soil √ √ √
B-2 14 – 15 Soil √ √ √
B-2 21 – 22 Soil √ √ √
B-2 28 – 30 Water √ √ √
B-3 9 – 10 Soil √ √ √
B-3 17 – 18 Soil √ √ √
Project No. 15-782E 6 GEOTECH ENGINEERING AND TESTING
6.2 Results of the Limited Chemical Tests
Results of the limited chemical testing conducted by A & B Labs are presented in Appendix B of this report. A summary of the chemical test results on selected soils and groundwater samples are presented in following report sections.
6.2.1 Total Petroleum Hydrocarbons (TPH)
TPH is a term used to describe several hundred chemical compounds that originally come from crude oil. TPH analysis was conducted on six (6) soil samples and one (1) groundwater sample. Following is a summary of TPH concentrations:
Borings No. Depth
Range, ft Sample Matrix
TPH, mg/kg Critical PCLs, mg/kg C6-C12 C12-C28 C28-C35
B-1 18 – 19 Soil BRL BRL BRL
200
B-1 23 – 24 Soil BRL BRL BRL
B-2 14 – 15 Soil BRL BRL BRL
B-2 21 – 22 Soil BRL BRL BRL
B-3 9 – 10 Soil BRL BRL 34
B-3 17 – 18 Soil BRL BRL BRL
Borings No.
Depth Range, ft
Sample Matrix
TPH, mg/L Critical PCLs, mg/L C6-C12 C12-C28 C28-C35
B-2 28 – 30 Water BRL BRL 3.27 0.98 Notes: 1) Testing results were compared to TCEQ Regulatory Guidelines – TRRP Tier-1 Residential
Protective Concentration Levels (PCLs), Exposure Pathways GWSoilIng and GWGWIng. 2) BRL = Below Reporting Limit.
Our review of the limited chemical testing analysis indicates that the TPH concentrations of the tested soil samples are Below Reporting Limit (BRL) except the soil sample collected from Boring B-3 (9ft-10ft), which has TPH (C28-C35) concentration level of 34 mg/kg but was lower than the critical PCL recommended concentration at this location. However, the concentration of TPH (C28-C35) at 3.27 mg/L in the water sample collected from Boring B-2 is higher compared to the TCEQ PCL recommended concentration of 0.98 mg/L at this location.
6.2.2 Benzene, Toluene, Ethylbenzene and Xylenes (BTEX)
BTEX is the term used for benzene, toluene, ethylbenzene and three isomers of xylene typically found in petroleum products, such as gasoline and diesel fuel. BTEX typically can be found near petroleum/natural gas production sites, service stations and other areas with Underground Storage Tanks (USTs) or Above-ground Storage Tanks (ASTs) containing gasoline or other petroleum-related products. BTEX analysis was conducted on six (6) soil samples and one (1) groundwater sample. The following is a summary of BTEX concentrations:
Project No. 15-782E 7 GEOTECH ENGINEERING AND TESTING
Borings No.
Depth Range,
ft Sample Matrix
BTEX, mg/kg
Benzene Toluene Ethylbenzene Xylenes
B-1 18 – 19 Soil BRL BRL BRL BRL
B-1 23 – 24 Soil BRL BRL BRL BRL
B-2 14 – 15 Soil BRL BRL BRL BRL
B-2 21 – 22 Soil BRL BRL BRL BRL
B-3 9 – 10 Soil BRL BRL BRL BRL
B-3 17 – 18 Soil BRL BRL BRL BRL
Borings No.
Depth Range,
ft Sample Matrix
BTEX, mg/L
Benzene Toluene Ethylbenzene Xylenes
B-2 28 – 30 Water BRL BRL BRL BRL Note: 1) BRL = Below Reporting Limit
Our review of the limited chemical testing analysis indicates that the BTEX concentrations of the tested soil and groundwater samples are Below Reporting Limit (BRL).
6.2.3 Methyl tert-Butyl Ether (MTBE)
MTBE is a chemical compound with molecular formula C5H12O. MTBE is a volatile, flammable and colorless liquid that is immiscible with, yet reasonably soluble, in water. MTBE is a gasoline additive, used as an oxygenate and to raise the octane number. MTBE analysis was conducted on six (6) soil samples and one (1) groundwater sample. Our review of the MTBE analysis results indicates that the MTBE components of the tested samples are Below Reporting Limit (BRL). The following is a summary of MTBE concentrations:
Borings No.
Depth Range,
ft Sample Matrix
MTBE1, mg/kg
B-1 18 – 19 Soil BRL
B-1 23 – 24 Soil BRL
B-2 14 – 15 Soil BRL
B-2 21 – 22 Soil BRL
B-3 9 – 10 Soil BRL
B-3 17 – 18 Soil BRL
Borings No. Depth, ft Sample Matrix MTBE, mg/L
B-2 28 – 30 Water BRL Note: 1) BRL = Below Reporting Limit
Project No. 15-782E 8 GEOTECH ENGINEERING AND TESTING
Our review of the limited chemical testing analysis indicates that the MTBE concentrations of the tested soil and groundwater samples are Below Reporting Limit (BRL).
7.0 CONCLUSIONS
Based on the limited laboratory chemical testing, all selected soil samples from the respective boring locations have TPH, BTEX and MTBE concentrations Below the Reporting Limit (BRL), except the soil sample collected from Boring B-3 (9ft-10ft), which has TPH (C28-C35) concentration level of 34 mg/kg but is lower than the Texas Commission on Environmental Quality (TCEQ) Regulatory Guidelines – Texas Risk Reduction Program (TRRP) Tier 1 Residential Protective Concentration Levels (PCLs), Exposure Pathways GWSoilIng concentration level of 200 mg/kg.
Our limited chemical testing on the groundwater sample obtained from Boring B-2 indicated that
the TPH (C6-C12), (C12-C28) BTEX and MTBE concentrations are below the Reporting Limit (BRL). The concentration of TPH (C28-C35) in the groundwater sample at 3.27 mg/L is higher than the Texas Commission on Environmental Quality (TCEQ) Regulatory Guidelines – Texas Risk Reduction Program (TRRP) Tier 1 Residential Protective Concentration Levels (PCLs), Exposure Pathway GWGWIng
concentration level of 0.98 mg/L.
Due to presence of Chemical of Concerns (COCs) in groundwater sample collected from Boring B-2 and soil sample collected from Boring B-3, the planned construction area at 13100 Westpark Drive (Easement Station 1+49.55 to Easement Station 3+00) should be declared as a Potentially Petroleum Contaminated Area (PPCA) in accordance with the City of Houston Specification No. 02105.
Please refer to the City of Houston’s Specifications Nos. 02120 and 02105 for additional
details regarding the excavation, stockpile, dewatering and construction worker health and safety requirements.
8.0 RECOMMENDATIONS
PPCA should be handled in accordance with the City of Houston Specifications (Section 02105 and 02120).
All workers working in PPCA must have appropriate training as specified by the Occupational Safety and Health Administration (OSHA) in 29 CFR 1910.120. Before beginning work in PPCA, all workers are required to complete 40 hours OSHA health and safety training.
Potential media screening, testing, handling and disposal in PPCA should be in accordance with City of Houston Specifications (Section 02105 and 02120).
Project No. 15-782E 9 GEOTECH ENGINEERING AND TESTING
9.0 QUALIFICATION OF ENVIRONMENTAL PROFESSIONALS
The GET team includes personnel from a variety of environmental disciplines. Key personnel involved in this project included the following:
Yongwan (Alex) Kwon – Chief Engineer
Edmund Chan, M.S.C.E., E.I.T. – Project Manager Detail information about the qualifications of environmental professionals is shown in Appendix D.
10.0 LIMITATIONS
The conclusions developed in this limited assessment were based on field and laboratory data taken at specific on-site locations and the selected samples tested. The tested results only represent the limited soils conditions at the boring locations. Variations and contamination could exist on the project alignment where the soils borings and chemical testing were not performed in this study.
11.0 STANDARD OF CARE The recommendations described herein were conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the engineering profession practicing contemporaneously under similar conditions in the locality of the project. No other warranty or guarantee, expressed or implied, is made other than the work was performed in a proper and workmanlike manner.
12.0 REPORT DISTRIBUTION
This report was prepared for the sole and exclusive use by our client, based on specific and limited objectives. All reports, boring logs, field data, laboratory test results, maps and other documents prepared by GET as instruments of service shall remain the property of GET. Reuse of these documents is not permitted without written approval by GET. GET assumes no responsibility or obligation for the unauthorized use of this report by other parties and for purposes beyond the stated project objectives and work limitations.
SITE VICINITY MAP
PROJECT: Limited Phase II Environmental Site Assessment, Facilities Consolidation Chelford City Diversion
Package I, WBS No. R-000536-0024-3, City of Houston, Texas
SCALE: 1 INCH = 1,955 FT DATE: AUGUST 2016 PROJECT NO.: 15-782E
GEOTECH ENGINEERING AND TESTING PLATE 1
NORTH
REC-1
Legends: REC-1: Recognized Environmental Condition REC-1
PLAN OF BORINGS
PROJECT: Limited Phase II Environmental Site Assessment, Facilities Consolidation Chelford City Diversion
Package I, WBS No. R-000536-0024-3, City of Houston, Texas
SCALE: 1 INCH = 52 FT DATE: AUGUST 2016 PROJECT NO.: 15-782E
GEOTECH ENGINEERING AND TESTING PLATE 2
Project Alignment
NORTH
Legends: B-1: Boring B-1 REC-1: Recognized Environmental Condition REC-1
REC-1
B-1 B-2 B-3
APPENDIX A
Log of Borings Key to Log Terms & Symbols
GEOTECH ENGINEERING AND TESTING
KEY TO LOG TERMS AND SYMBOLS
UNIFIED SOIL CLASSIFICATIONS TERMS CHARACTERIZING SOIL STRUCTURE
Symbol Material Descriptions GW WELL GRADED-GRAVELS, GRAVEL-SAND MIXTURES,
LITTLE OR NO FINES GP POORLY GRADED GRAVELS, GRAVEL-SAND
MIXTURES, LITTLE OR NO FINES GM
SILTY GRAVELS, GRAVEL-SAND SILT MIXTURES
GC CLAY GRAVELS, GRAVEL-SAND CLAY MIXTURES a SW WELL GRADED SANDS, GRAVELLY SANDS, LITTLE
OR NO FINES SP POORLY GRADED SANDS, OR GRAVELLY SANDS,
LITTLE OR NO FINES SM SILTY SANDS, SAND-SILT MIXTURES a SC CLAYEY SANDS, SAND-SILT MIXTURES b
INORGANIC SILTS AND VERY FINE SANDS, ROCK FLOUR, SILTY OR CLAYEY FINE SANDS OR CLAYEY SILTS WITH SLIGHT PLASTICITY
CL INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLY CLAYS, SANDY CLAYS, LEAN CLAYS
OL ORGANIC SILTS AND ORGANIC SILTY CLAYS OF LOW PLASTICITY
MH INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS FINE SANDY OR SILTY SOILS, ELASTIC SILTS
CH 1 INORGANIC CLAYS OF HIGH PLASTICITY, FAT CLAYS
OH ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, ORGANIC SILTS
PT PEAT, HUMUS, SWAMP SOILS WITH HIGH ORGANIC CONTENT
COARSE GRAINED SOILS (major portion retained on No. 200 FINE GRAINED SOILS (major portion passing No. 200 Sieve): Sieve): Includes (1) clean gravels and sands, and (2) silty or clayey Include (1) inorganic or organic silts and clays, (2) gravelly, gravels and sands. Conditions rated according to standard sandy, or silty clays, and (3) clayey silts. Consistency is rated penetration test (SPT)* as performed in the field. according to shearing strength as indicated by hand penetrometer readings or by unconfined compression tests.
Descriptive Terms Blows Per Foot*
Very Loose 0 – 4
Loose 5 – 10
Medium Dense 11 – 30
Dense 31 – 50
Very Dense over 50
* 140 pound weight having a free fall of 30-inch
SOIL SAMPLERS NOTE: Slickensided and fissured clays may have lower unconfined
compressive strengths than shown above because of weakness or cracks in the soil. The consistency ratings of such soils are based
on hand penetrometer readings.
TERMS CHARACTERIZING ROCK PROPERTIES
VERY SOFT OR PLASTIC Can be remolded in hand: corresponds in consistency up to very stiff in soils.
SOFT Can be scratched with fingernail. MODERATELY HARD Can be scratched easily with knife; cannot be scratched with fingernail.
Difficult to scratch with knife. VERY HARD Cannot be scratched with knife. POORLY CEMENTED OR FRIABLE Easily crumbled. CEMENTED Bounded Together by chemically precipitated materials. UNWEATHERED Rock in its natural state before being exposed to atmospheric agents. SLIGHTLY WEATHERED Noted predominantly by color change with no disintegrated zones. WEATHERED Complete color change with zones of slightly decomposed rock. EXTREMELY WEATHERED Complete color change with consistency, texture, and general appearance or soil.
GEOTECH ENGINEERING AND TESTING PLATE A-4
Slickensided - Having incline planes of weakness that
are slick and glossy in appearance. Fissured - Containing shrinkage cracks frequently
filled with fine sand or silt: usually vertical. Laminated - Composed of thin layers of varying colors
and soil sample texture. Interbedded - Composed of alternate layers of different
soil types. Calcareous - Containing appreciable quantities of
calcium carbonate. Well Graded - Having wide range in grain sizes and
substantial amounts of all intermediate particle sizes.
Poorly Graded - Predominantly of one grain size, or having a range of sizes with some intermediate sizes missing.
Pocket - Inclusion of material of different texture that is smaller than the diameter of the sample.
Parting - Inclusion less than ⅛-inch thick extending through the sample.
Seam - Inclusion ⅛- to 3-inch thick extending through the sample.
Layer - Inclusion greater than 3-inch thick extending through the sample.
Interlayered - Soils sample composed of alternating layers of different soil types.
Intermixed - Soil samples composed of pockets of different soil type and layered or laminated structure is not evident.
Descriptive Term
Undrained Shear Strength
Ton/Sq. Ft.
Very Soft Less than 0.13
Soft 0.13 to 0.25
Firm 0.25 to 0.50
Stiff 0.50 to 1.00
Very Stiff 1.00 to 2.00
Hard 2.00 or higher SHELBY TUBE SAMPLER
STANDARD PENETRATION TEST
AUGER SAMPLING
FILL SOILS
ML
APPENDIX B
Results of Limited Chemical Testing by A & B Labs with Chain of Custody Records
GEOTECH ENGINEERING AND TESTING
16060163
10100 East Freeway, Suite 100, Houston, TX 77029 tel: 713-453-6060, fax: 713-453-6091, http://www.ablabs.com
Laboratory Analysis Report
Job ID :
Total Number of Pages: 17
City, State, Zip:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City Diversion P
Edmund Chan
Client Address:
Client Name:
Client Project Name :
P.O.#.:
Sample Collected By:
800 Victoria Drive
Geotech Engineering & TestingReport To :
Attn:
Houston, Texas, 77022
Edmund Chan
Date Collected: 06/01/16
Client Sample ID A&B Sample ID
A&B Labs has analyzed the following samples...
Matrix
B1 18'-19' 16060163.01Soil
B1 23'-24' 16060163.02Soil
B2 14'-15' 16060163.03Soil
B2 21'-22' 16060163.04Soil
B2 28'-30' 16060163.05Water
B3 9'-10' 16060163.06Soil
B3 17'-18' 16060163.07Soil
This report cannot be reproduced, except in full, without prior written permission of A&B Labs. Results shown relate only to the items tested. Samples are assumed to be inacceptable condition unless otherwise noted. Blank correction is not made unless otherwise noted. Air concentrations reported are based on field sampling information providedby client. Soil samples are reported on a wet weight basis unless otherwise noted. Uncertainty estimates are available on request.
6/9/2016
Title:
Released By:
Senior Project Manager
Shantall Carpenter
Date Received : 06/02/2016 15:43
This Laboratory is NELAP (T104704213-16-14) accredited. Effective: 04/01/2016; Expires: 03/31/2017
I am the laboratory manager, or his/her designee, and I am responsible for the release of this data package. This laboratory data package has beenreviewed and is complete and technically compliant with the requirements of the methods used, except where noted in the attached exception reports.I affirm, to the best of my knowledge that all problems/anomalies observed by this laboratory (and if applicable, any and all laboratories subcontractedthrough this laboratory) that might affect the quality of the data, have been identified in the Laboratory Review Checklist, and that no information ordata have been knowingly withheld that would affect the quality of the data.
Date:
Scope: Non-Potable Water, Drinking Water, Air, Solid, Biological Tissue, Hazardous Waste
Page 1 of 17
General Term Definition
BRL
Front-Wt
Below Reporting Limit
Front Weight
Back WeightBack-Wt
cfu colony-forming units
Conc. Concentration
D.F. Dilution Factor
LCS Laboratory Check Standard
LCSD Laboratory Check Standard Duplicate
MS Matrix Spike
MSD Matrix Spike Duplicate
Molecular WeightMW
RPD
ppm parts per million
Relative Percent Difference
TNTC Too numerous to count
Post-Wt
Pre-Wt Previous Weight
Q Qualifier
RegLimit Regulatory Limit
RptLimit Reporting Limit
T Time
Post Weight
surr Surrogate
SDL Sample Detection Limit
16060163
L A B O R A T O R Y T E R M A N D Q U A L I F I E R D E F I N I T I O N R E P O R T
Date:Job ID : 6/9/2016
Qualifier Definition
Matrix Spike and/or Matrix Spike Duplicate recovery is below laboratory control limits due to matrix interference."The samplerandomly selected as QC for this batch was not part of your project. Therefore, this sample matrix is not applicable to your projectsamples."
M2
Surrogate recovery is above control limit. Results may be biased high.S1
Page 2 of 17
L A B O R A T O R Y T E S T R E S U L T S
Soil
16060163.01
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B1 18'-19'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
11:00 18.1% Moisture
% MoistureSM 2540G
LEB06/03/16 15:200.11%18.1% Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/03/16 20:1328.20.975mg/KgBRLC6-C12
SuG06/03/16 20:1324.20.975mg/KgBRL>C12-C28
SuG06/03/16 20:1321.10.975mg/KgBRL>C28-C35
SuG06/03/16 20:130.975mg/KgBRLTotal C6-C35
SuG06/03/16 20:1360-1430.975%92.21-Chlorooctane(surr)
SuG06/03/16 20:1360-1500.975%92.5Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 05:050.00611.00mg/KgBRLMTBE
GLQ06/07/16 05:050.00611.00mg/KgBRLBenzene
GLQ06/07/16 05:050.00611.00mg/KgBRLToluene
GLQ06/07/16 05:050.00611.00mg/KgBRLEthylbenzene
GLQ06/07/16 05:050.0121.00mg/KgBRLm- & p-Xylenes
GLQ06/07/16 05:050.00611.00mg/KgBRLo-Xylene
GLQ06/07/16 05:050.0181.00mg/KgBRLXylenes
GLQ06/07/16 05:0581-1111.00%96.5Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 3 of 17
L A B O R A T O R Y T E S T R E S U L T S
Soil
16060163.02
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B1 23'-24'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
11:30 10.5% Moisture
% MoistureSM 2540G
LEB06/03/16 15:200.11%10.5% Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/03/16 20:4225.30.956mg/KgBRLC6-C12
SuG06/03/16 20:4221.70.956mg/KgBRL>C12-C28
SuG06/03/16 20:4218.90.956mg/KgBRL>C28-C35
SuG06/03/16 20:420.956mg/KgBRLTotal C6-C35
SuG06/03/16 20:4260-1430.956%1251-Chlorooctane(surr)
SuG06/03/16 20:4260-1500.956%123Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 05:320.00561.01mg/KgBRLMTBE
GLQ06/07/16 05:320.00561.01mg/KgBRLBenzene
GLQ06/07/16 05:320.00561.01mg/KgBRLToluene
GLQ06/07/16 05:320.00561.01mg/KgBRLEthylbenzene
GLQ06/07/16 05:320.0111.01mg/KgBRLm- & p-Xylenes
GLQ06/07/16 05:320.00561.01mg/KgBRLo-Xylene
GLQ06/07/16 05:320.0171.01mg/KgBRLXylenes
GLQ06/07/16 05:3281-1111.01%97Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 4 of 17
L A B O R A T O R Y T E S T R E S U L T S
Soil
16060163.03
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B2 14'-15'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
12:30 19.0% Moisture
% MoistureSM 2540G
LEB06/03/16 15:200.11%19% Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/07/16 16:2629.71.0141mg/KgBRLC6-C12
SuG06/07/16 16:2625.41.0141mg/KgBRL>C12-C28
SuG06/07/16 16:2622.21.0141mg/KgBRL>C28-C35
SuG06/07/16 16:261.0141mg/KgBRLTotal C6-C35
SuG06/07/16 16:2660-1431.0141%96.61-Chlorooctane(surr)
SuG06/07/16 16:2660-1501.0141%96.6Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 06:000.00621.00mg/KgBRLMTBE
GLQ06/07/16 06:000.00621.00mg/KgBRLBenzene
GLQ06/07/16 06:000.00621.00mg/KgBRLToluene
GLQ06/07/16 06:000.00621.00mg/KgBRLEthylbenzene
GLQ06/07/16 06:000.0121.00mg/KgBRLm- & p-Xylenes
GLQ06/07/16 06:000.00621.00mg/KgBRLo-Xylene
GLQ06/07/16 06:000.0191.00mg/KgBRLXylenes
GLQ06/07/16 06:0081-1111.00%95Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 5 of 17
L A B O R A T O R Y T E S T R E S U L T S
Soil
16060163.04
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B2 21'-22'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
13:00 12.1% Moisture
% MoistureSM 2540G
LEB06/03/16 15:200.11%12.1% Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/03/16 21:4225.70.953mg/KgBRLC6-C12
SuG06/03/16 21:42220.953mg/KgBRL>C12-C28
SuG06/03/16 21:4219.20.953mg/KgBRL>C28-C35
SuG06/03/16 21:420.953mg/KgBRLTotal C6-C35
SuG06/03/16 21:42S160-1430.953%2641-Chlorooctane(surr)
SuG06/03/16 21:42S160-1500.953%231Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 06:280.00571.00mg/KgBRLMTBE
GLQ06/07/16 06:280.00571.00mg/KgBRLBenzene
GLQ06/07/16 06:280.00571.00mg/KgBRLToluene
GLQ06/07/16 06:280.00571.00mg/KgBRLEthylbenzene
GLQ06/07/16 06:280.0111.00mg/KgBRLm- & p-Xylenes
GLQ06/07/16 06:280.00571.00mg/KgBRLo-Xylene
GLQ06/07/16 06:280.0171.00mg/KgBRLXylenes
GLQ06/07/16 06:2881-1111.00%96.5Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 6 of 17
L A B O R A T O R Y T E S T R E S U L T S
Water
16060163.05
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B2 28'-30'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
13:30 % Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/04/16 03:091.041.035mg/LBRLC6-C12
SuG06/04/16 03:091.041.035mg/LBRL>C12-C28
SuG06/04/16 03:091.141.035mg/L3.27>C28-C35
SuG06/04/16 03:091.035mg/L3.27Total C6-C35
SuG06/04/16 03:0970-1251.035%1211-Chlorooctane(surr)
SuG06/04/16 03:09S170-1251.035%132Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 15:170.0021mg/LBRLMTBE
GLQ06/07/16 15:170.0021mg/LBRLBenzene
GLQ06/07/16 15:170.0021mg/LBRLToluene
GLQ06/07/16 15:170.0021mg/LBRLEthylbenzene
GLQ06/07/16 15:170.0041mg/LBRLm- & p-Xylenes
GLQ06/07/16 15:170.0021mg/LBRLo-Xylene
GLQ06/07/16 15:170.0061mg/LBRLXylenes
GLQ06/07/16 15:1775-1251%100Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 7 of 17
L A B O R A T O R Y T E S T R E S U L T S
Soil
16060163.06
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B3 9'-10'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
14:30 20.5% Moisture
% MoistureSM 2540G
LEB06/03/16 15:200.11%20.5% Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/03/16 22:4330.11.010mg/KgBRLC6-C12
SuG06/03/16 22:4325.81.010mg/KgBRL>C12-C28
SuG06/03/16 22:4322.51.010mg/Kg34>C28-C35
SuG06/03/16 22:431.010mg/Kg34Total C6-C35
SuG06/03/16 22:4360-1431.010%92.51-Chlorooctane(surr)
SuG06/03/16 22:4360-1501.010%91.5Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 06:550.00631.01mg/KgBRLMTBE
GLQ06/07/16 06:550.00631.01mg/KgBRLBenzene
GLQ06/07/16 06:550.00631.01mg/KgBRLToluene
GLQ06/07/16 06:550.00631.01mg/KgBRLEthylbenzene
GLQ06/07/16 06:550.0131.01mg/KgBRLm- & p-Xylenes
GLQ06/07/16 06:550.00631.01mg/KgBRLo-Xylene
GLQ06/07/16 06:550.0191.01mg/KgBRLXylenes
GLQ06/07/16 06:5581-1111.01%96.5Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 8 of 17
L A B O R A T O R Y T E S T R E S U L T S
Soil
16060163.07
Sample Matrix
Job Sample ID:
AnalystDate TimeQReg LimitRpt LimitDFUnitsResultParameter/Test DescriptionTest Method
B3 17'-18'
Other Information:
Time Collected:
Client Sample ID:
Date Collected:
Edmund ChanAttn:
15-782E / Limited Phase II ESA from Westpark Drive to Alief-CentralLift Station Facilities Consolidation Chelford City DiversionPackage I, Houston, T
Project Name:
Geotech Engineering & TestingClient Name:
Date16060163Job ID :
6/9/2016
06/01/16
15:30 18.0% Moisture
% MoistureSM 2540G
LEB06/03/16 15:200.11%18% Moisture
Total Petroleum HydrocarbonsTX 1005
SuG06/03/16 23:1327.40.947mg/KgBRLC6-C12
SuG06/03/16 23:1323.40.947mg/KgBRL>C12-C28
SuG06/03/16 23:1320.40.947mg/KgBRL>C28-C35
SuG06/03/16 23:130.947mg/KgBRLTotal C6-C35
SuG06/03/16 23:1360-1430.947%88.51-Chlorooctane(surr)
SuG06/03/16 23:1360-1500.947%87.9Chlorooctadecane(surr)
Purgeable AromaticsSW-846 8021B
GLQ06/07/16 07:230.00611.00mg/KgBRLMTBE
GLQ06/07/16 07:230.00611.00mg/KgBRLBenzene
GLQ06/07/16 07:230.00611.00mg/KgBRLToluene
GLQ06/07/16 07:230.00611.00mg/KgBRLEthylbenzene
GLQ06/07/16 07:230.0121.00mg/KgBRLm- & p-Xylenes
GLQ06/07/16 07:230.00611.00mg/KgBRLo-Xylene
GLQ06/07/16 07:230.0181.00mg/KgBRLXylenes
GLQ06/07/16 07:2381-1111.00%97.5Trifluorotoluene(surr)
Soil results reported on dry weight basis
Page 9 of 17
Q U A L I T Y C O N T R O L C E R T I F I C A T E
Date :16060163Job ID :
LEBell
Samples in This QC Batch :
Qb16060363
% Moisture
16060163.01,02
Reporting Units :
06/03/16QC Batch ID :
Method :
Created Date :
Analysis :
Created By :
%SM 2540G
6/9/2016
Prep Date : 06/03/16 14:15SM 2540GPrep Method :PB16060328Sample Preparation : LEBellPrep By :
QC Type: Method Blank
D.F. RptLimitParameter Result Units QualCAS #
% 0.1BRL 1% Moisture
QC Type: Duplicate
16060133.02QC Sample ID:
Parameter UnitsSampleResult QualRPD
RPDCtrlLimit
QCSampleResult
%% Moisture 7.69 9.4 207.0
Refer to the Definition page for terms.
Page 10 of 17
Q U A L I T Y C O N T R O L C E R T I F I C A T E
Date :16060163Job ID :
LEBell
Samples in This QC Batch :
Qb16060364
% Moisture
16060163.03,04,06,07
Reporting Units :
06/03/16QC Batch ID :
Method :
Created Date :
Analysis :
Created By :
%SM 2540G
6/9/2016
Prep Date : 06/03/16 14:15SM 2540GPrep Method :PB16060328Sample Preparation : LEBellPrep By :
QC Type: Method Blank
D.F. RptLimitParameter Result Units QualCAS #
% 0.1BRL 1% Moisture
QC Type: Duplicate
16060163.03QC Sample ID:
Parameter UnitsSampleResult QualRPD
RPDCtrlLimit
QCSampleResult
%% Moisture 19.3 1.6 2019.0
Refer to the Definition page for terms.
Page 11 of 17
Q U A L I T Y C O N T R O L C E R T I F I C A T E
Date :16060163Job ID :
SGautam
Samples in This QC Batch :
Qb16060380
Total Petroleum Hydrocarbons
16060163.01,02,03,04,06,07
Reporting Units :
06/03/16QC Batch ID :
Method :
Created Date :
Analysis :
Created By :
mg/KgTX 1005
6/9/2016
Prep Date : 06/03/16 13:00SW-846 5035APrep Method :PB16060340Sample Preparation : SGautamPrep By :
QC Type: Method Blank
D.F. RptLimitParameter Result Units QualCAS #
mg/Kg 23.7BRL 1C6-C12 TPH-1005-1
mg/Kg 20.3BRL 1>C12-C28 TPH-1005-2
mg/Kg 17.7BRL 1>C28-C35 TPH-1005-4
mg/KgBRL 1Total C6-C35
% 60-15096.5 1Chlorooctadecane(surr) 3386-33-2
% 60-143101 11-Chlorooctane(surr) 111-85-3
%RecoveryCtrlLimit
LCSDResult
LCSResult
RPDCtrlLimitRPD
LCSSpk Added
LCSD% Rec
LCS% RecParameter
LCSDSpk Added
QC Type: LCS and LCSD
Qual
3.6113500 75-125109 20544C6-C12 500 564
2.8101500 75-12598.2 20491>C12-C28 500 505
6.1119500 75-125112 20558>C28-C35 500 593
QC Type: MS and MSD
16060114.01QC Sample ID:
ParameterSampleResult
RPDCtrlLimit
MSResult
MSSpk Added RPD Qual
MS% Rec
MSDSpk Added
MSD% Rec
%RecCtrlLimit
MSDResult
BRLC6-C12 500 107 3.8500 516536 20 75-125103
BRL>C12-C28 500 101 3.2500 491507 20 75-12597.4
39.4>C28-C35 500 104 0.4500 559557 20 75-125104
Refer to the Definition page for terms.
Page 12 of 17
Q U A L I T Y C O N T R O L C E R T I F I C A T E
Date :16060163Job ID :
GLQuick
Samples in This QC Batch :
Qb16060841
Purgeable Aromatics
16060163.01,02,03,04,06,07
Reporting Units :
06/08/16QC Batch ID :
Method :
Created Date :
Analysis :
Created By :
mg/KgSW-846 8021B
6/9/2016
Prep Date : 06/06/16 16:00SW-846 5030CPrep Method :PB16060831Sample Preparation : GLQuickPrep By :
QC Type: Method Blank
D.F. RptLimitParameter Result Units QualCAS #
mg/Kg 0.005BRL 1MTBE 1634-04-4
mg/Kg 0.005BRL 1Benzene 71-43-2
mg/Kg 0.005BRL 1Toluene 108-88-3
mg/Kg 0.005BRL 1Ethylbenzene 100-41-4
mg/Kg 0.01BRL 1m- & p-Xylenes 108-38-3&106-42-3
mg/Kg 0.005BRL 1o-Xylene 95-47-6
mg/Kg 0.015BRL 1Xylenes 1330-20-7
% 81-11198.5 1Trifluorotoluene(surr) 98-08-8
%RecoveryCtrlLimit
LCSDResult
LCSResult
RPDCtrlLimitRPD
LCSSpk Added
LCSD% Rec
LCS% RecParameter
LCSDSpk Added
QC Type: LCS and LCSD
Qual
0.0900.05 67.2-13290 200.045MTBE 0.05 0.045
0.0840.05 76.2-12884 200.042Benzene 0.05 0.042
0.0860.05 74.2-12686 200.043Toluene 0.05 0.043
2.3860.05 79.4-12588 200.044Ethylbenzene 0.05 0.043
0.0870.1 76.3-12687 200.087m- & p-Xylenes 0.1 0.087
0.0900.05 77.1-12390 200.045o-Xylene 0.05 0.045
0.0880.15 77.2-12588 200.132Xylenes 0.15 0.132
QC Type: MS and MSD
16060123.01QC Sample ID:
ParameterSampleResult
RPDCtrlLimit
MSResult
MSSpk Added RPD Qual
MS% Rec
MSDSpk Added
MSD% Rec
%RecCtrlLimit
MSDResult
BRLMTBE 0.05 90 4.60.05 0.0430.045 26 76-13486
BRLBenzene 0.05 74 0.00.05 0.0370.037 19 68-13874
BRLToluene 0.05 64.8 M23.10.05 0.0380.039 19 67-13562.8
BRLEthylbenzene 0.05 51.8 M23.80.05 0.0290.028 20 71-12753.8
BRLm- & p-Xylenes 0.1 45.8 M22.20.1 0.0550.054 27 56-13546.8
BRLo-Xylene 0.05 46.6 M20.00.05 0.0280.028 24 56-13446.6
BRLXylenes 0.15 54.7 M21.20.15 0.0830.082 25 59-13455.3
Refer to the Definition page for terms.
Page 13 of 17
Q U A L I T Y C O N T R O L C E R T I F I C A T E
Date :16060163Job ID :
GLQuick
Samples in This QC Batch :
Qb16060846
Purgeable Aromatics
16060163.05
Reporting Units :
06/08/16QC Batch ID :
Method :
Created Date :
Analysis :
Created By :
mg/LSW-846 8021B
6/9/2016
Prep Date : 06/07/16 10:00SW-846 5030CPrep Method :PB16060834Sample Preparation : GLQuickPrep By :
QC Type: Method Blank
D.F. RptLimitParameter Result Units QualCAS #
mg/L 0.002BRL 1MTBE 1634-04-4
mg/L 0.002BRL 1Benzene 71-43-2
mg/L 0.002BRL 1Toluene 108-88-3
mg/L 0.002BRL 1Ethylbenzene 100-41-4
mg/L 0.004BRL 1m- & p-Xylenes 108-38-3&106-42-3
mg/L 0.002BRL 1o-Xylene 95-47-6
mg/L 0.006BRL 1Xylenes 1330-20-7
% 75-125100 1Trifluorotoluene(surr) 98-08-8
%RecoveryCtrlLimit
LCSDResult
LCSResult
RPDCtrlLimitRPD
LCSSpk Added
LCSD% Rec
LCS% RecParameter
LCSDSpk Added
QC Type: LCS and LCSD
Qual
0900.02 56.2-16290 300.018MTBE 0.02 0.018
0850.02 84.6-12585 300.017Benzene 0.02 0.017
0900.02 77.3-12990 300.018Toluene 0.02 0.018
0900.02 84.1-12290 300.018Ethylbenzene 0.02 0.018
0900.04 84.5-12490 300.036m- & p-Xylenes 0.04 0.036
0900.02 84.4-12490 300.018o-Xylene 0.02 0.018
0900.06 85-12390 300.054Xylenes 0.06 0.054
QC Type: MS and MSD
16060163.05QC Sample ID:
ParameterSampleResult
RPDCtrlLimit
MSResult
MSSpk Added RPD Qual
MS% Rec
MSDSpk Added
MSD% Rec
%RecCtrlLimit
MSDResult
BRLMTBE 0.02 90.9 00.02 0.0190.019 21 56.2-16290.9
BRLBenzene 0.02 90 5.70.02 0.0170.018 17 84.6-12585
BRLToluene 0.02 89.1 00.02 0.0180.018 29 77.3-12989.1
BRLEthylbenzene 0.02 90 00.02 0.0180.018 30 84.1-12290
BRLm- & p-Xylenes 0.04 92.5 00.04 0.0370.037 22 84.5-12492.5
BRLo-Xylene 0.02 95 00.02 0.0190.019 21 84.4-12495
BRLXylenes 0.06 93.3 00.06 0.0560.056 21 85-12393.3
Refer to the Definition page for terms.
Page 14 of 17
Q U A L I T Y C O N T R O L C E R T I F I C A T E
Date :16060163Job ID :
SGautam
Samples in This QC Batch :
Qb16060860
Total Petroleum Hydrocarbons
16060163.05
Reporting Units :
06/08/16QC Batch ID :
Method :
Created Date :
Analysis :
Created By :
mg/LTX 1005
6/9/2016
Prep Date : 06/03/16 10:00TX 1005Prep Method :PB16060845Sample Preparation : SGautamPrep By :
QC Type: Method Blank
D.F. RptLimitParameter Result Units QualCAS #
mg/L 1BRL 1C6-C12 TPH-1005-1
mg/L 1BRL 1>C12-C28 TPH-1005-2
mg/L 1.1BRL 1>C28-C35 TPH-1005-4
mg/LBRL 1Total C6-C35
% 70-12574.9 1Chlorooctadecane(surr) 3386-33-2
% 70-12577.4 11-Chlorooctane(surr) 111-85-3
%RecoveryCtrlLimit
LCSDResult
LCSResult
RPDCtrlLimitRPD
LCSSpk Added
LCSD% Rec
LCS% RecParameter
LCSDSpk Added
QC Type: LCS and LCSD
Qual
2.510243 75-12599.5 2042.8C6-C12 43 43.9
3.797.943 75-125102 2043.7>C12-C28 43 42.1
2.199.543 75-125102 2043.7>C28-C35 43 42.8
QC Type: MS and MSD
16060163.05QC Sample ID:
ParameterSampleResult
RPDCtrlLimit
MSResult
MSSpk Added RPD Qual
MS% Rec
MSDSpk Added
MSD% Rec
%RecCtrlLimit
MSDResult
BRLC6-C12 44.5 96.7 5.444.5 45.543.1 20 75-125102
BRL>C12-C28 44.5 100 3.644.5 43.545.1 20 75-12596.7
3.27>C28-C35 44.5 97.6 344.5 45.446.7 20 75-12594.7
Refer to the Definition page for terms.
Page 15 of 17
Page 16 of 17
Sample Condition Checklist
pH Paper ID : n/a Thermometer ID : 140539631
Sample pH : n/a Temperature : 3.9+0.5cf=4.4°C
Client Name : Geotech Engineering & Testing
Time Received : 3:43PMDate Received : 06/02/2016 A&B JobID : 16060163
Sample 05 is a water, the rest are soils. Soil samples were received in pre weighed VOAs and 1-4oz glass jar per sample (terra core method 5035). -AR06.02.2016
Comments : Include actions taken to resolve discrepancies/problem:
X Has client been contacted about sub-out18
X Sample accepted.17.
X VOA vials completely filled.16.
X Samples were received within the hold time.15.
X Sample volume is sufficient for analyses requested.14.
X Bottle count on C-O-C matches bottles found.13.
X Sample ID labels match C-O-C ID's12.
X All samples were logged or labeled.11.
X Sample(s) were received with proper preservative10.
X Sample(s) were received in appropriate container(s).9.
Matrix:
Sludge Cassette Tube BulkSolidLiquidSoilWater Badge Food Other8.
X Sample containers arrived intact. (If no comment).7.
X Sample(s) received with signed sample custody seal.6.
X C-O-C signed and dated.5.
X Sample(s) received with chain-of-custody.4.
X If yes, ice in cooler.3.
X Sample(s) in a cooler.2.
X Cooler seal present and signed.1.
N/ANoYesCheck Points
Received by : Check in by/date : AReyes / 06/02/2016AReyes
Phone : www.ablabs.com 713-453-6060
Page 17 of 17
APPENDIX C
Project Site Pictures
GEOTECH ENGINEERING AND TESTING
PROJECT PICTURES
Project No. 15-782E
P-1 (A Picture of the Project Alignment)
P-2 (A Picture of the Drilling Operation at Boring B-1)
APPENDIX D
Qualifications of Environmental Professionals
GEOTECH ENGINEERING AND TESTING
YONGWAN (ALEX) KWON, P.E. CHIEF ENGINEER
SUMMARY Mr. Kwon is an engineering manager at Geotech Engineering and Testing (GET) with the responsibility for daily operations of the environmental and geotechnical engineering department. He is involved in data analyses and the preparation of reports and recommendations. He has over 12 years of experience in the field of environmental and geotechnical engineering. His environmental engineering experience is related to residential and commercial developments, educational facilities, roads, parks, underground utilities, buildings, flood control channels, community centers, and airports. His other experience includes groundwater and soil contamination modeling. PROFESSIONAL REGISTRATION Licensed Professional Engineer EDUCATION 2009 M.S. – University of Florida, Gainesville, Florida 1998 M.S. – Hanyang University, Seoul, Korea 1996 B.S. – Hanyang University, Seoul, Korea EXPERIENCE 2000 – 2007 Korea Institute Construction Technology 2010 – Present Geotech Engineering and Testing – Houston, Texas Chief Engineer
EDMUND CHAN, M.S.C.E., E.I.T. PROJECT MANAGER
SUMMARY Mr. Edmund Chan is a project manager at Geotech Engineering and Testing (GET) with the responsibility for the daily operations of environmental and geotechnical explorations, data analysis and the preparation of reports and recommendations. His environmental engineering experience is related to public infrastructure, residential, commercial developments, educational facilities, roads, underground utilities, landfills and buildings. Mr. Chan actively involved in environmental site assessment projects, including Phase I and Phase II Environmental Site Assessment Studies. PROFESSIONAL REGISTRATION Engineer-in-Training EDUCATION 2014 M.S. – The University of Oklahoma in Norman 2012 B.S. – The University of Oklahoma in Norman EXPERIENCE 2015 – Present Geotech Engineering and Testing – Houston, Texas Project Manager