monitoring well report martin maryland · section 1 introduction lockheed martin corporation has...

FINAL REPORT

Groundwater Monitoring Well Surveying and Sampling Report

Martin State Airport: Middle River, Maryland

L ø C K H E E D MAR T , N.k May 18,1999

Groundwater Monitoring Well Surveying and Sampling Report

Martin State Airport: Middle River, Maryland

Prepared by:

Lockheed Martin Corporation

Gene Matsushita


Dino Iseppi


lMC; MARTIN STAT!: AIRPORT. GROUNDWATER MONITORING WEll SURVEYING AND SAMPliNG REPORT

TABLE OF CONTENTS

Section Page

1 Introduction ... ........ ................................................... ............................ 1-1

2 Site Background .................................................................................... 2~1

2.1 Site Location.... ............................. ........... ....... .................... ...........2-1 2.2 Site Groundwater Conditions

........ ..................... ..... ..... .......................2-1 2.3 Well Construction Data .....................................................................

2-3

3 Groundwater Monitoring Well Surveying And Sampling Program......... ............ .... ............ ... ... ... .... ............ ........ ............

3-1

3.1 Technical Approach .........................................................................

3-1

3.1. I Well Surveying .... .................... ................. .........................

3-1

3.1.2 Water Level Measurement.................................. ................... 3-3

3.1.3 Well Purging.....................................................................

3-3

3.1.4 Groundwater Sample Collection..............................................

3-4

3.1.5 Laboratory Analyses............................................................ 3-5

3.1.6 Field Quality Assurance/Quality Control Procedures ..................... 3-5

3.1.7 Field Notes / Documentation Procedures ................................... 3-6

4 Analytical Results........... ........................ ........... ........... ........ ........ ......... 4-[

5 Groundwater Elevation Data.................................................................... 5-1

6 Local Groundwater Well Information......................................................... 6-1

LIST OF FIGURES

Page

Figure 2-1 Site Location Map........... ............................ .................... ........... .....2-2

Figure 3-1 Existing Groundwater Monitoring WeJl and Piewmeter Locations..................3-2

Figure 5-1 Groundwater Contour Map... ......... ........ ......... ............ ..... ................ ...5-2

Figure 6-1 Approximate Locations of LocaJ Groundwater WeJls................................. .6-2

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPt/NG AbPOAT PAGE i

Table 2-1

Table 3-1

Table 3-2

Table 4-1

Table 4-2 Table 4-3 Table 4-4

Table 4-5

Table 5-1

Table 6-1

Appendix A

Appendix B

T ABLE OF CONTENTS {continued}

LIST OF TABLES Page

Snmmary of Well Construction Data .....................................................2-3

Summary of Well Survey Data ............................................................3-3 Summary of Final Well Purging Parameter Readings

.................................3-4

Summary of Petroleum Hydrocarbons Detected...... ...... ........ ....................4-2 Summary of Volatile Organic Compounds (VOCs) Detected ........................4-2 Summary of Semi-Volatile Organic Compounds (SVOCs) Detected................4.2 Summary of Total Priority Pollutant Metals Detected .................................4-4 Summary of Dissolved Priority Pollutant Metals Detected............................4-5

Groundwater Elevations ..................... .............. ........ ........... ..............5-1

Summary of Local Groundwater Well Information ....................................6-1

APPENDICES

Well Purging Logs

Laboratory Analytical Data Reports

PAGE ii LMC: MARTIN STATE AIRPORT. GROUNDWATER MON!TORING WEll SURVEYING AND SAMPLING REPORT

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Section 1

Introduction

Lockheed Martin Corporation has prepared this Groundwater Surveying and Sampling Report to

describe the methodology and results of the sampling of existing groundwater monitoring wells

conducted in March 1999 at Martin State Airport, Middle River, Maryland. This field work

was the first in a series of tasks that wíll be completed in support of a risk based evaluation of

the southeast portion of the airport. The objective of the well sampling was to obtain updated

chemical data on groundwater quality from six existing groundwater monitoring wells and one

piezometer located at the site. Additionally, current data on groundwater elevation and flow

direction was collected during the sampling program.

This report is organized into the following sections:

. Section 2 - Site Background, presenting a brief description of site location, groundwater

conditions, and well construction data;

. Section 3 - Groundwater Monitoring Well Surveying and Sampling Program, presenting the

technical approach, a description of the field methodology employed, quality, and the analytical

scheme;

. Section 4 - Summary of Analytical Results, presenting the results of the laboratory analysis of the groundwater samples collected;

. Section 5 - Groundwater Elevation Data, presenting groundwater contour map and gradients

based on groundwater elevation measurements and well survey data; and

. Section 6 - Local Groundwater Well Information, presenting data provided from the Maryland Department of the Environment (MDE) on groundwater wells in the

area.

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WEll SURVEYING AND SAMPLING REPORT PAGE 1-1

Well purging logs and laboratory analytical data reports are included in Appendices A and B,

respectively.

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPLING REPORT PAGE 1-2

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Section 2

Site Background

2.1 SITE LOCATION

The well sampling area is located at the southeast portion of the Martin State Airport in Middle

River, Maryland - see Figure 2-1. Frog Mortar Creek is located east of the well sampling area and

flows into Chesapeake Bay.

2.2 SITE GROUNDWATER CONDITIONS

Previous monitoring well measurements (recorded in February 22, 1996) documented groundwater

at depths ranging from approximately 6 to 20 teet below ground surface (bgs). Groundwater

elevation measurements indicated flow direction toward Frog MOItar Creek. The direction of

groundwater flow measured during this sampling program was consistent with historical site

investigation data.

2.3 WELL CONSTRUCTION DATA

From 1994 to 1996, a total of three flush-mounted piezometers and six monitoring wells (three f1ush-

mounted and three stick-up) have bæn installed at the southeast portion of Martin State Airport.

However, during a site walk conducted in December 1998, only one piezometer (PZ-2) was able to

be located - see Figure 3-1 for well locations. Airport persormel mentioned that considerable storm

water drainage work with heavy equipment was conducted in the area between the runway and

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WEll SURVEYING AND SAMPliNG REPORT PAGE 2-1

FIGURE 2-1 SITE LOCATION MAP

LMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPLING REPOAT PAGE 2-2

Taxiway Tango during 1997. It is assumed that piezometers PZ-I and PZ-3 may have been

destroyed or buried during this grading activity. In addition, it was observed during the site walk

that monitoring well MW-I, also located between the runway and Taxiway Tango, was damaged.

Originally installed as a flush-mounted well, the protective casing of this well has been lifted

approximately I-foot above ground level and is tilted towards the northwest. It appears that this well

was struck by a bulldozer or grader. The top of the pve casing was not visible and therefore

groundwater elevation data from this well is not considered reliable.

Table 2-1 summarizes the well construction data for the piezometer and six monitoring wells.

Table 2-1 Summary of Well Constmction Data

MW-l(') 8/10/94 4 Schedule 40 pve 4ó 36 to 4ó

MW"2 8/12/94 4 Schedule 40 pve 42 3210 42

MW-3 81t2/94 4 Schedule 40 pve 30 20 to 30

MW-4 1/29/96 4 Schedule 40 pve 30 31030

MW-5 1/30/96 4 Schedule 40 pve 39 10 to 39 -

MW-ó 1/31/96 4 Schedule 40 pve 34 14 to 34

Note: Piezometers pz.} and PZ.3 were notlocatcd during the sampling program Ul Due 10 apparent damage by heavy ~uìpment, the MW-I well casing has bC1:l1lilled approximaldy I-foot above ground

lMC: MARTIN STATE AIRPORT, GROUNDWA TER MONITORING WELt SURVEYING AND SAMPLING RËPORT PAGE 2-3

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Section 3

Groundwater Monitoring Well

Surveying and Sampling Program

3.1 TECHNICAL APPROACH

The purpose of the groundwater sampling is to provide current data on groundwater quality at

six existing wells and a piezometer located within the southeast portion of Martin State Airport.

The objective of the well surveying is to obtain updated data on the direction and gradient of

groundwater flow. The locations of the groundwater monitoring wells and piezometers are

shown in Figure 3-1. The details of the field methodologies utilized and analytical scheme are

presented in Sections 3.1.1 to 3.1.6.

3.1.1 Well Surveying

Each mOlútoring well and piezometer location was surveyed by a surveyor licensed in Maryland.

The elevations were surveyed at a notched reference point at the top of the inside well casing. This

notch was also used as the reference point for measuring groundwater depths. Elevations of the top

of each casing were surveyed at the reference point to the nearest 0.01 foot and elevations of the

ground surface were measured to the nearest 0.1 foot, both referenced to mean sea level (MSL).

The horizontal location of each well centerpoint was surveyed to the nearest 0.1 foot. All survey

data is referenced to the Maryland State Plane Coordinate System. A summary of the data obtained

from the survey is presented in Table 3-1.

lMC: MARTIN STATE AIRPORT. GROUNDWATER MONITORING WELL SURVEYING AND SAMPLING REPORT PAGE 3.1

FIGURE 3-1

EXlmNG GROUNDWATER MONITORING WELL AND PIEZOMETER LOCATIONS

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LMC: MAR11N STATE AIRPORT. GROUNDWATER MONfTORING W8J. SUIlIIEYING AND SAMPUNG REPORT PAGE 3-2

Table 3-1

Summary of Well Survey Data

604,052.58 1,479,214.74 10.47 10.0

MW-2 604,144.76 1,479,708.54 9.28 9.7

MW-3 604,448.60 1,479,107.13 12.16 12.5

MW-4 604,852.95 1,479,180.77 11.46 8.0

MW-5 604,294.92 1,479,901.65 23.68 20.1

MW-6 604,009.29 1,480,185.27 17.75 14.5

PZ-2 604,423.46 1,479,131.92 12.13 12.3

3.1.2 Water Level Measurement

Prior to any well purgmg or sampling, a complete round of water level measurements was

conducted using a water level meter (groundwater depths were measured in all seven wells within

15 hours). Additionally, before purging or sampling of each well was performed, the water level in

the well was measured. The water level meter consists of a liquid sensor attached to a measuring

tape that is lowered down into the well until water is encountered. A buzzer sounds when the probe

reaches groundwater and the depth is read from the tape relative to the notch in the top of the well

casing. Water level measurements for each well were recorded in the field logbook.

3.1.3 Well Purging

Prior to collecting a sample, each well was purged to ensure that representative samples of the

surrounding formation waters were collected for chemical analysis. The well purging consisted

of removing approximately three to six casing volumes of water from the well prior to

sampling. Casing volumes were calculated by first measuring the depth to groundwater and

then measuring the total depth of the well. The resulting height of the water column was then

multiplied by a conversion factor to determine the number of gallons in one casing volume.

LMC: MARTIN STATE AIRPORT. GROUNDWATER MONITORING WEll SURVEYING AND SAMPLING REPORT PAGE 3.3

A down-hole submersible pump was used to purge the monitoring wells, while a hand bailer

was used to purge piezometer PZ-2. Purged water was stored in 55-gallon drums labeled

according to corresponding well number. These drums are currently stored onsite in a secure

area and their contents will be disposed of at an approved disposal facility, based on the

groundwater analytical results presented in Section 4.

During well purging, the groundwater physical parameters of temperature, pH, conductivity,

and turbidity were measured using a flow-through water quality monitoring system.

Stabilization of these parameters serves as an indicator of adequate purging in preparation for

collection of a representative groundwater sample. Table 3-1 summarizes the final readings for

each parameter prior to sample collection. The monitoring data was recorded on field data logs

- see Appendix A.

Table 3-2

Summary of Final Well Purging Parameter Readings

MW-2 3-17-99/1600 - 66 gallons 14.1 3.57 8.57 0.783

MW-3 3-18-99/1157 - 53 gallons 15.0 5.43 17.6 0.214

MW-4 3-16-99 I 1508 - 48 gallons 7.8 6.88 14.1 0.934

MW-5 3-18-99/1123 - 51 gallons 14.7 4.33 28.6 0.273

MW-6 3-18-99 I 1242 - 42 gallons 14.8 4.23 7.50 0.588

PZ-2 3-17-99/ll07 - 9 gallons 13.4 5.87 78.4 0.596

3.1.4 Groundwater Sample Collection

Once at least three well volumes had been purged and the physical parameters described in Section

3.1.3 stabilized, one groundwater sample was collected from each of the six monitoring wells and the

piezometer. Samples were transferred directly from the pre-decontaminated, disposable polyethylene

lMC; MARTIN STATE AIRPORT, GROUNDWATER MONITORING WElt SURVEYING AND SAMPLING REPORT PAGE 3-4

bailers into laboratory-prepared sample containers and immediately placed on ice in a cooler. At the

end of each day's sampling activities, samples were transported to Gascoyne Laboratories, a

Maryland State-Certified laboratory, for analysis.

3.1.5 Laboratory Analyses

All groundwater samples were recorded on chain-of-custody forms tbat accompanied the

samples to the laboratory. Groundwater samples were analyzed for the following analytical

parameters:

· Total Petroleum Hydrocarbons - gas and diesel using EPA Method 8015 Modified

· Volatile Organic Compounds (VOCs) using EPA Method 8260B

· Semi-Volatile Organic Compounds (SVOCs) using EPA Method 827OC, and

· Total Priority Pollutant Metals using EPA Method 6020/7470A.

· Dissolved Priority Pollutant Metals using EPA Method 6020/7470A.

Quality control samples (trip blanks and field duplicate) were also delivered to the laboratory.

The trip blanks were provided by the laboratory and accompanied all VOC samples. The field

duplicate (labeled MW-7) was collected from monitoring well MW-5.

3.1.6 Field Quality Assurance I Quality Control Procedures

Field quality assurance and quality control procedures included the following actions that

minimized the potential for cross-contamination:

. The well purging equipment was washed in a solution of Alconox and clean tap water,

rinsed in clean tap water, and then rinsed in distilled water between each sample.

. A new, pre-decontaminated polyethylene bailer was used to collect each groundwater

sample.

. Clean, laboratory-prepared containers were used for each sample.

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WElL SURVEVING AND SAMPLING REPORT PAGE 3-5

3.1.7 Field Notes I Documentation Procedures

In addition to a field notebook, which was used to record the daily log of site activities, the

following forms were used to record data generated in the field:

. Daily Record of Work Progress: This form was used to record names of project

personnel on the site, equipment on-site, materials delivered to the job, items of work

completed, and a daily summary.

. Calibration Forms: An instrument-specific form was used to record calibration data.

Data was entered at the beginning and end of each day.

. Well Log: This form was used to record specific conductivity, pH, temperature, and

turbidity measurements obtained during well purging.

. Chain-of-Custody Record: This form accompanied each shipment of samples to the

laboratory to insure accountability for the samples from the time of collection to the time

they were received at the laboratory.

. Tailgate Safety Meeting: This form was used to record all safety issues discussed by the

Site Safety Officer with field personnel prior to starting work. These issues included

hazards that may be encountered during work, preventive health and safety measures,

and emergency hospital routes.


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Section 4

Summary of Analytical Results

A total of eight groundwater samples (including the duplicate sample) were collected from six

monitoring wells and one piewmeter to obtain updated chemical data on groundwater quality at the

southeast portion of Martin State Airport. The duplicate sample was collected from monitoring well

MW-5 and is labeled as MW-7. These samples were analyzed by Gascoyne Laboratories, Inc., a

Maryland State certified laboratory for the following parameters:

. Total Petroleum Hydrocarbons - gas and diesel using EPA Method 8015 Modified

. Volatile Organic Compounds (VOCs) using EPA Method 8260B

· Semi-Volatile Organic Compounds (SVOCs) using EPA Method 8270C, and

. Total Priority Pollutant Metals using EPA Method 6020/7470A.

· Dissolved Priority Pollutant Metals using EPA Method 6020/7470A.

The results of the sampling program are presented in this section and the laboratory analytical data

reports are presented in Appendix B.

Petrolewn Hydrocarbons

All eight samples were analyzed for both gasoline and diesel range petroleum hydrocarbons.

Gasoline was detected in two monitoring wells, MW-3 and MW-5, at concentrations of 170 ppb and

46,000 ppb, respectively. In addition, diesel was detected in four monitoring wells at concentrations

ranging from 340 ppb to 2,800 ppb. Similar gas and diesel levels were also detected in the duplicate

sample. The results of the chemical analyses are presented in Table 4-1.


Table 4-1

Summary of Petroleum Hydrocarbons Detected

Gasoline

Diesel

ND ND 170

430

ND 46,000

2,800

NO

ND

48,000 ND

2,500 2,500 ND 340 ND

ND = Not Detected Above Rq>orting Umit otMW-7 = Duplicate lllllIlple colle<:kd from monítoring well MW-5

Volatile Organic Compounds (VOCs)

A total of seven VOCs were detected from the eight groundwater samples analyzed at concentrations

above the Maximum Contaminant Levels (MCLs) specified by the US EPA's National Primary

Drinking Water Regulations. Monitoring well MW-5 reported the highest concentrations of four

VOCs (cis-I,2-dichloroethene, toluene, 1,1,I-tricWoroethane, and tricWoroethene) above the MCLs.

The results of the chemical analysis are presented in Table 4-2.

Table 4-2

Smnmary of Volatile Organic Compounds (VOCS) Detected

Benzene ND ND NO ND NO ND ND 14 5

cis-l,2-DCE NO 8 91 8 55,000 43 57,000 9 70

CWoroform ND ND NO NO ND 5 ND ND None

Toluene ND ND NO ND 5,800 5 6,100 ND 1,000

1,1,I-TCA NO NO ND ND 3,000 ND 3,100 ND 200

TCE 36 16 380 NO 56,000 41 59,000 10 5

Vinyl Chloride ND ND ND 34 ND ND ND ND 2

NO = Not Detected Above Reporting Limi1 .MW~7 = Duplicate sample coUecled from monitoring weUMW-5 MCL based on US BFA's National Primary Dñnking Water Regulaûons

cis-I,2-DCE = cis-l,2-Dichloroethene

1,I,i-TeA = l,l,l-TrichlOfOeth.ane TeE = Trichloroetheoo

LMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPLING REPORT PAGE 4-2

Semi- Yolatile Organic Compounds (SYOC5)

All eight groundwater samples were analyzed for SVOCs. Only monitoring well MW-5 and the

corresponding duplicate sample contained SVOCs. A total of four compounds were detected as

shown in Table 4-3.

Table 4-3

Summary of Semi-Volatile Organic Compounds (SVOCS) Detected

2-Methylphenol ND ND ND ND ND ND 11 ND

4-Methylphenol ND ND ND ND 22 ND 28 ND

Phenol ND ND ND ND 15 ND 27 ND

Naphthalene ND ND ND ND 50 ND 45 ND

NO = Not Detected above RepolÙ11g Limit "MW.7 = Duplicate ~Ie collected from monitoring weU MW.5

Total Priority Pollutant Metals

All eight groundwater samples were analyzed for total priority pollutant metals. A total of eleven

metals were detected as shown in Table 4-4.


Table 44 Summary of Total Priority Pollutant Metals Detected

Antimony (Sb) NO NO NO NO NO NO NO 0.012

Arsenic (As) NO NO 0.008 NO 0.012 0.005 0.017 0.018

Beryllium (Be) NO 0.008 NO NO 0.0096 0.0040 0.0096 NO

Cadmium (Cd) NO 0.016 NO 0.0035 0.021 0.0010 0.022 0.0052

Chromium (Cr) 0.0050 NO 0.0057 NO 0.021 0.0040 0.027 0.52

Copper (Cu) 0.008 0.ûl5 NO 0.006 0.12 0.006 0.15 0.090

Lead (Pb) 0.006 NO NO NO 0.034 0.007 0.046 0.047

Nickel (Ni) 0.013 0.12 0.009 0.026 0.17 0.036 0.16 0.ûl8

Selenium (Se) NO NO NO NO 0.022 NO 0.023 NO

Silver (Ag) NO NO NO NO NO NO NO 0.001

Zinc (Se) 1.0 0.55 0.11 0.45 0.42 0.10 0.44 0.41

NO = Not Detected Above Reporting Limit

*MW-7 = Duplica1c sample collected from monitoring well MW-5

Dissolved Priority Pollutant Metals

All eight groundwater samples were analyzed for dissolved priority pollutant metals. A total of nine

dissolved metals were detected. Only two dissolved metals (beryllium and cadmium) were detected

in samples collected from MW-2 and MW-5 at concentrations above the MCLs. Similar

concentrations were also detected in the duplicate sample collected from MW-5. The results of the

chemical analysis are presented in Table 4-2.

LMC: MARTiN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPlING REPORT PAGE 4-4

Table 4-5

Summary of Dissolved Priority Pollutant Metals Detected

Arsenic (As) NO NO NO NO NO NO NO 0.005 0.05

Beryllium (Be) NO 0.0081 NO NO 0.0086 0.0041 0.0086 NO 0.004

Cadmium (Cd) NO 0.017 NO NO 0.023 0.0014 0.022 NO 0.005

Chromium (Cr) NO NO NO NO 0.0060 NO 0.0053 NO 0.1

Copper (Co) NO 0.013 NO NO 0.085 NO 0.073 NO 1.3

Lead (Pb) NO NO NO NO 0.012 NO 0.013 NO 0.015

Nickel (Ni) 0.010 0.11 0.007 0.026 0.17 0.034 0.16 0.006 None

Selenium (Se) NO NO NO NO 0.020 NO 0.018 NO 0.05

Zinc (Se) 0.17 0.55 0.09 0.46 0.43 0.12 0.43 NO None

ND = Not Detected Above Reporting Limìt

*MW-7 = Duplicate sample collected from monîtoñng weD MW-5 MCL based on US EPA'1l National Primary Drinking Water Regulations

lMC: MARTIN STATE AIRPORT. GROUNDWATER MONITORING WELL SURVEYING AND SAMPliNG REPORT PAGE ~5

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Section 5

Groundwater Elevation Data

In order to obtain an accurate" snapshot" of groundwater elevations and flow at the southeast portion

of Martin State Airport, prior to well purging, groundwater depths were measured in all seven wells

within a timeframe of 1.5 hours Table 5-] summarizes the data obtained from tlús round of

groundwater level measurements. As mentioned in Section 2, well MW-I was found to be damaged,

therefore groundwater elevation data from this well is not considered valid.

Table 5-1

Groundwater Elevations

MW-3

MW-4

MW-5

MW-6

PZ-2

12.16

11.46

23.68

17.75

12.13

8.26

6.27

21.05

14.70

7.95

3.90

5.19

2.63

3.05

4.18

3-16-99 1 1304

3-16-99 1 1135

3-16-99 1 1150

3-16-99/1200

3-16-99/1300

The groundwater elevation data are plotted on Figure 5-1, which presents groundwater flow

contours. The MW-3 groundwater elevation was not used for the contour map given the

measurements at PZ-2 and MW-4. The apparent general flow direction, easterly towards Frog

Mortar Creek, agrees with that determined in previous investigations. This is also the flow

direction that would be most likely in this hydrologic setting (groundwater flowing towards an

adjacent large surface water body).

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPLING REPORT PAGE 5.1

By measuring the distance between two wells parallel to the now direction, the hydraulic

gradient can be determined. Using the elevation data depicted on Figure 5-1, measurements

between wells MW-2 and PZ-2, and MW-5 and PZ-2 are roughly parallel to the

groundwater now direction. Gradients of 0.0017 feet/feet and 0.0020 feet/feet, respectively,

were calculated, with an average gradient of 0.00185 feet/feet. Calculating the hydraulic

gradient between wells MW-4 and MW-S also appears to be parallel to flow, and results in a

higher gradient of 0.0028 feet/feet.

lMC: MARTIN STATE AIRPORT. GROUNDWATER MONITORING WEll SURVEYING AND SAMPLING REPORT PAGE 5-3

FIGURE&-1 GROUNDWATER CONTOUR MAP

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YW-:S MONITORING well. LOCAnON

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l DIRECTION OF GROUNDWATER FLOW

LMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WEU. SURVEYING AND SAMPUNG REPORT

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Section 6

local Groundwater Well Information

The Maryland Department of the Environment (MDE) was contacted in order to obtain information

on groundwater wells in the area surrounding the site. MDE personnel conducted a search of the

MDE well log database to locate groundwater wells within approximately a one-half mile radius of

the site. A total of seventeen wells were identified, primarily in neighborhoods on the opposite side

of Frog Mortar Creek, north-northeast of the site - see Figure 6-1. A summary of the available

information on these wells is presented in Table 6-1. Only two of the seventeen wells have industrial

uses and the remainder are used for domestic pmposes. Well depths range from 50 to 199 feet.

Table 6-1

Swnmary of Local Groundwater Well Information

I Industrial -~_._~--_..__.- .-_.~------- 2 Domestic

------- .. ..~.~_.~..._._----- 3 Domestic ------------ -------------- 4 Domestic

-----------.------ - --..------------- 5 Domestic -----------_.------- 6 Domestic

-----------. 7 Domestic ------------- -------------.. 8 Domestic

9 Domestic -

-----_._--_.- .-----...--- _._-_._-_._--------- ------ ---- 10 Domestic

II Domestic -------..----- .---- --.----.-.-.--- 12 Domestic

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16 Domestic

17 Domestic

50 135

O' 0* 104

110

110 --_.~- 68

. --.------.----.------ 100

114

115 --_._.~------ 107

199

. ... .t.... ....J..l..i.....__. 110

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*Data as provided by MDE

lMC: MARTIN STATE AIRPORT. GROUNDWATER MONITORING WEll SURVEYING AND SAMPliNG REPORT PAGE 6-1

FIGURE 6-1 APPROXIMATE LOCATIONS OF LOCAL GROUNDWATER WELLS

LEGEND e Approximate locations of groundwater wells

LMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WELL SURVEYING AND SAMPLING REPORT PAGE 6-2

Based on the estimated groundwater t10w direction presented in Section 5, these wells would not

be considered downgradient of the site. Further isolating these wells from the site is Frog

Mortar Creek, which most likely acts as a hydraulic barrier or divide between groundwater at

Martin State Airport and groundwater present on the northern side of Frog Mortar Creek.

lMC: MARTIN STATE AIRPORT, GROUNDWATER MONITORING WEll SURVEYING AND SAMPUNG REPORT PAGE 6-3

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Baltimore, MD 21224 (410) 633-1800

1f'{[~lPrg[F't~. ~f ffi\å~j.\Ltf'~~~ FAX NO. (410) 633-5443

l,YWW.gascoyne_com

Tetra Tech 10670 White Rock Road Suite 100

Rancho Cordeva, CA 95670

Attn: Nisha Bansal

Page 1 of6 Report No: 9901448

This report of analysis contains test results for the following samples submitted to Gascoyne

laboratories, Inc. for project MARTIN AIRPORT:

Groundwater 990005445

Received by

Gasccyne

16-Mar -1999

16-Mar -1999

Client Sample 1.0.,

MW-4 DISSOLVED, 16-Mar-1999(1540)

MW-4 TOTAL, 16-Mar-1999(1540)

Sample Type

Groundwater

Lab Sample No.

990005444

This Report contains the following:

A) Cover Letter B) Test Results

C) Chain-of-Custody

All samples were analyzed following EPA protoccls and other recognized methodologies as specified in the report. AlilaboratOlY Quality Control(QC) data associated with this report are within established control limits unless otherwise noted in this report.

Gascoyne Laboratories, Inc. laboratory identification numbers:

Maryland :109; Delaware: MD015; Virginia: 00152; New Jersey: 60637; Pennsylvania: 68-339; New York: 11158; A2LA: 410.01; AIHA8885; US Army Corps of Engineers;

and EPA ICR: ICRMD003.

The analyses specified in this report mayor may not be included in the scopes of the above listed

certifications.

This cover page is an integral part of this report and must be included with all copies of this report.

~ /

Final report reviewed by: J

~ / ~I/~f Report issue date es H. Newman, Client Services Manager

=

'6(9 F',i"te(lo"re"yclcdp~pef. Please see reverse side for explanation of terms and other information.

~a$rn~n:e 1llahnratnri~5, ~nr~ Baltimore, MD 21224

~~~iíQ)~lJ íQ)[F ),\frl!JAll \[(~~~

(410) 633,1800

FAX NO. (410) 633-5443

'NWw.gascoyne_corn

Page 2 016

Report no: 9901448

Client: Tetra Tech

Sample Id: Submitted samples: MW-4 DISSOLVED collected on 16-Mar-99(15:40) Laboratory Sample Number: 990005444

Test Laboratory Dateo! Parameter Results Reporting Limit Method Analyst Analysis

Mercury(Hg) <0,0002 ppm 0,0002 ppm EPA-7470A CSG 22-Mar-99(17:37)

SamplelTest Notes: Analysis performed on filtered (OA5 micron) sample,

Antimony(Sb) <0,0050 ppm 0,0050 ppm EPA-6020 CJK 30-Mar-99(19:35)

Arsenic(As) <0,005 ppm 0,005 ppm EPA-6020 CJK 30-Mar-99(19:35)

Beryllium(Be) <0,0025 ppm 0,0025 ppm EPA-6020 CJK 30-Mar-99(19:35) Cadmium(Cd) <0,0005 ppm 0,0005 ppm EPA-6020 CJK 30-Mar -99( 19 35)

Chromium(Cr) <0,0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:35)

Copper(Cu) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(19:35)

Lead(Pb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(19:35)

Nickel(Ni) 0.026 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(19:35)

Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar -99( 19 35)

Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar -99( 19 35) Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar -99( 19:35)

Zinc(Zn) OA6 ppm 0.020 ppm EPA-6020 CJK 30-Mar -99(19:35)

SamplelTest Notes: Analysis performed on filtered (OA5 micron) sample.

.~ ~Jèi Pmlled ,In '''oyCI.ed ~"iX" Please see reverse side for explanation of terms and other information.

Qí)ascnuuc 1ûahnratnrics, ~uc. Baltimore, MD 21224

(410) 633-1800

~rf;iPiQ)rR<1f (Q)~ tÞ\fr~#-\l'1~il~ FAX NO. (410) 633-5443

www.gascoyne.com

Page 3 016

Report no: 9901448

Client: Tetra Tech

Sample Id: Submitted samples: MW-4 TOTAL collected on 16-Mar-99(15:40) Laboratory Sample Number: 990005445


2,4,5- T richlorophenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

2,4,6- Triehlorophenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) 2,4-Dichlorophenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) 2,4-Dimethylphenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

2,4-Dinitrophenol <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57)

2-Chlorophenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

2-Methylphenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

2-Nitrophenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) 4,6-Dinitro-2-MethyJ Phenol <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57)

4-Chloro-3-Methyl Phenol <20 ppb 20 ppb EPA-8270C DJP 22-Mar-99(16:57)


4-Nitrophenol <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57)

Pentachlorophenol <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57)

Phenol <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) 2-Fluorophenol( surrogate) 55 % Ree NA EPA-8270C DJP 22-Mar-99(16:57)

Phenol-d5(surrogate) 32 % Ree NA EPA-8270C DJP 22-Mar-99(16:57)

2,4,6- Tribromophenol( surrogate) 98 % Ree NA EPA-8270C DJP 22-Mar-99(16:57)

1,2,4-Trichlorobenzene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

1,2-Dichlorobenzene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) 1,3-Dichlorobenzene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) 1,4-Dichlorobenzene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99( 16:57)

2,4-Dinitrotoluene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657) 2,6-Dinitrotoluene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

2-Chloronaphthalene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657) 2-Methylnaphthalene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657)

2-Nitroaniline <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57)

3,3' -Dichlorobenzidine <20 ppb 20 ppb EPA-8270C DJP 22-Mar-99(1657) i70 Please see reverse side for explanation of terms and other information. Sc9P,jnlMoor<;C\fCledPajWf.

Qf)ascn~nc 1ûahnratnrics, ~n(:. Baltimore, MO 21224

(410) 633-1800

~{[EIPQ,lrf'{1r Q,l[F' ~W~)#\l'V~il~ FAX NO.

(410) 633-5443

www.gascoyne.Gom

Page 4 of6 Report no: 9901448

Client: Tetra Tech

Sample Id: Submitted samples: MW-4 TOTAL collected on 16-Mar-99(15:40)

Laboratory Sample Number: 990005445

Test Laboratory Date of

Parameter Results Reporting Limit Method Analyst AnalysIs

3-Nitroaniline <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57) 4-Bromophenyl Phenyl Ether <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

4-Chloroaniline <20 ppb 20 ppb EPA-8270C DJP 22-Mar-99(16:57)

4-Chlorophenyl Phenyl Ether <10 ppb 10 ppb EPA-8270C DJP 22 -Mar -99( 16:57)

4-Nitroaníline <50 ppb 50 ppb EPA-8270C DJP 22-Mar-99(16:57)

Acenaphthene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Acenaphthylene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Anthracene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Benzo(a)Anthracene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Benzo(ajPyrene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Benzo(b)Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Benzo(g,h,i)Perylene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Benzo(k)Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Bis(2-Chloroethoxy)Methane <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Bis(2-Chloroethyl)Ether <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657) Bis(2-Chloroisopropyl)Ether <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99( 16:57)

Bis(2-Ethylhexyl)Phthalate <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657) Butyl Benzyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657)

Carbazole <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657)

Chrysene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Di-n-Butyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(1657) Di-n-Octyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Dibenz( a,h )Anthracene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Dibenzofuran <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Diethyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Dimethyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Fluoranthene <10 ppb 10ppb EPA-8270C DJP 22-Mar-99(16:57)

Fluorene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Hexachlorobenzene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Hexachlorobutadiene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Hexac~rocyclopentadiene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) ~& Print<<<l,,~ '''<:ïcled pa;>er. Please see reverse side for explanation of terms and other information.

Qf)asJ:ngnc Ifiahnratnri~s, ~uJ:~ Baltimore, MD 21224

(410) 633-1800

FAX NO. (410) 633-5443 ~~íPltdllP(1r (QrP ~\~;\lYr~~~

www.gascoync.com

Page 5 of 6

Report no: 9901448

Client: Tetra Tech


Test Laboratory Date of Parameter Results Reporting Limit Method Analyst Analysis

Hexachloroethane <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Indeno( 1 ,2,3-cd)pyrene <10 ppb 10ppb EPA-8270C DJP 22-Mar-99(16:57)

Isophorone <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) N-Nitrosodi-N-propylamine <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) N-Nitrosodiphenylamine <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Naphthalene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Nitrobenzene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57)

Phenanthrene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99(16:57) Pyrene <10 ppb 10 ppb EPA-8270C DJP 22-Mar-99( 16:57)

Nitrobenzene-d5( surrogate) 109 % Rec NA EPA-8270C DJP 22-Mar-99(16:57)

2-Fluorobiphenyl( surrogate) 91 % Rec NA EPA-8270C DJP 22-Mar-99(16:57)

Terphenyl-<l14( surrogate) 96 % Ree NA EPA-8270C DJP 22-Mar-99(16:57)

Diesel Range Organics(C 1 0-C28) n-Pentacosane( surrogate)

<100 ppb

83 % Ree

100 ppb

NA

EPA-8015B

EPA-8015B

MST 19-Mar-99(1347)

MST 19-Mar-99(1347)

Gasoline Range Organies(C6-C10)

Trifluorotoluene( surrogate)

<100 ppb

103 % Ree

100 ppb

NA

EPA-8015B

EPA-8015B

NJ 19-Mar-99(08:19)

NJ 19-Mar-99(0819)

Mercury(Hg) <0.0002 ppm 0.0002 ppm EPA-7470A CSG 22-Mar-99(1739)

ro i2!dPri[)l!)drm"'CV~jwP"pe' Please see reverse side for explanation of terms and other information.

~a$~n~n~ 1fiahnratnríc$, ~U~. Baltimore, MD 21224

(410} 633-1800

FAX NO. (410) 633-5443 1K<IE[plroJ~u íQJ~ iÂ~~\lLV~O~

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Page 6 016

Report no: 9901448

Client: Tetra Tech



Antimony(Sb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(23:30) Arsenic(As) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(21 :56)

Beryllium( Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(21 :56)

Cadmium(Cd) 0.0035 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(21 :56)

Chromium(Cr) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(2156) Copper(Cu) 0.006 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(21:56)

Lead(Pb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(21 :56)

Nickel(Ni) 0.026 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(21:56) Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar -99(21: 56)

Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(21:56)

Thallium(TI) <00020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar -99(21: 56)

Zinc(Zn) 0.45 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(21:56)

m ~ap'intedDO,,,,,,,,,letiP"P'" Please see reverse side for explanation of terms and other information.

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Dille;

Time:

Date:

Time'

" Date: .

'. tirno,

Revised 4/97 .-

~tH:H:n~ttC 1fiahnratnrics, ~ttc. Baltimore, MD 21224

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~IËfP(QllJ\<lr i{;!)f j\~]#\lL V~ß~ FAXNQ. (410) 633-5443

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Tetra Tech 10670 White Rock Road Suitè 100

Rancho Cordeva, CA 95670 Attn: Nisha Bansal

Page 1 of 30

Report No: 9901470

This report of analysis contains test results for the following samples submitted to Gascoyne

laboratories, Inc. for project MARTIN AIRPORT: Received by

Client Sample I.D., Sample Type lab Sample No. Gascoyne

MW-1 TOTAL; GRAB, 17-Mar-1999(1435) Groundwater 990005597 17-Mar-1999


PZ-2 TOTAL; GRAB, 17-Mar-1999(1110) Groundwater 990005599 17-Mar-1999

MW-2 TOTAL; GRAB, 17-Mar-1999(1605) Groundwater 990005600 17 -Mar -1999


TRIP BLANK, 11-Mar-1999(0600) Water 990005602 17-Mar-1999

MW-1 DISS; GRAB, 17-Mar-1999(1435) Groundwater 990005614 17-Mar-1999,

MW-3 DISS; GRAB, 17-Mar-1999(1210) Groundwater 990005615 17-Mar-1999

PZ-2 DISS; GRAB, 17-Mar-1999(1110) Groundwater 990005616 17-Mar-1999

=

\bÖ' Prjnloo c" '"cyclecl paper Please see reverse side for explanation of terms and other information.

Qf}ns~ntznc llIabnratnrics, ~n-c4' Baltimore, MD 21224

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Rancho Cord eva, CA 95670

AUn: Nisha Bansal

Page 2 of 30

Report No: 9901470

Client Sample I.D.,

MW-2 DISS; GRAB, 17-Mar-1999(1605)

Sample Type

Groundwater

Lab Sample No.

990005617

Received by

Gascoyne

17-Mar-1999


A) Cover Letter

B) Test Results

C) Chain-of-Custody

All samples were analyzed following EPA protocols and other recognized methodologies as specified in the

report. All laboratory Quality Control(QC) data associated with this report are within established control limits unless otherwise noted in this report.


Maryland :109; Delaware: MD015; Virginia: 00152; New Jersey: 60637; Pennsylvania: 68-339; New York: 11158; A2LA: 410.01; AIHA:8885; US Army Corps of Engineers;



certifications.


Final report reviewed by: J

-(pI?'? Report issue date

=. ~dl-'rintetlOOf"CYC\C<lpalA'(. Please see reverse side for explanaUon of terms and other information.

Qf}as-cn~uc Ifiahnratnrics, c3Juc. Baltimore, MD 21224

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Page 3 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-1 TOTAL; GRAB collected on 17-Mar-99(14:35) Laboratory Sample Number: 990005597

(410} 633.1800

FAX NO. (410) 633-5443

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Parameter Results Reporting Limit Method Analyst Analysis

2,4,5- Trichlorophenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)


2,4-Dichlorophenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)

2,4-Dimethylphenol <12 ppb 12 ppb EPA-8270C DJP 25-Mar-99(20:48)





4,6-Dinitro-2-Methyl Phenol <60 ppb 60 ppb EPA-8270C DJP 26-Mar-99(20:48)



4-Nitrophenol <50 ppb 50 ppb EPA-8270C DJP 26-Mar-99(20:48) Pentachlorophenol <60 ppb 60 ppb EPA-8270C DJP 26-Mar-99(20:48)

Phenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)

2-Fluorophenol( surrogate) 40 % Rec NA EPA-8270C DJP 26-Mar-99(20:48)

Phenol-d5(surrogate) 32 % Rec NA EPA-8270C DJP 26-Mar-99(20:48)

2,4,6- Tribromophenol( surrogate) 18 % Rec NA EPA-8270C DJP 26-Mar-99(20:48)

1,2,4-Trichlorobenzene

1,2-Dichlorobenzene

1 ,3-Dichlorobenzene

1,4-Dichlorobenzene

2,4-Dinitrotoluene

2,5-Dinitrotoluene

2-Chloronaphthalene

2-Methylnaphthalene

2-Nitroaniline

3,3'-Dichlorobenzidine

ro ~.J&Prin(...:IMrecycl"dpap'"

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<60 ppb

<24 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

60 ppb

24 ppb

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

Please see reverse side for explanation of terms and other informaUon.

DJP

DJP

DJP

DJP

DJP

DJP

DJP

DJP

DJP

DJP

26-Mar-99(20:48) 26-Mar-99(20:48)

26-Mar-99(20:48)

25-Mar-99(20:48)

26-Mar-99(20:48)

26-Mar-99(20:48)

26-Mar-99(20:48)

26-Mar-99(20:48)

26-Mar-99(20:48)

26-Mar-99(20:48)

Qf)ascn~nc 1Qahnratnrics, ~uc~ Baltimore, MD 21224

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Page 4 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-1 TOTAL; GRAB collected on 17-Mar-99(14:35)



3-Nitroaniline <60 ppb 60 ppb EPA-8270C OJP 26-Mar-99(20:48)

4-Bromophenyl Phenyl Ether <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

4-Chloroaniline <24 ppb 24 ppb EPA-8270C OJP 26-Mar-99(20:48) 4-Chlorophenyl Phenyl Ether <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

4-Nitroaniline <60 ppb 60 ppb EPA-8270C OJP 26-Mar-99(20:48) Acenaphthene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Acenaphthylene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Anthracene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Benzo(a)Anthracene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Benzo(a)Pyrene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Benzo(b)Fluoranthene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Benzo(g,h,i)Perylene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Benzo(k)Fluoranthene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Bis(2 -Chloroethoxy)Methane <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Bis(2-Chloroethyl)Ether <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Bis(2-Chloroisopropyl)Ether <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Bis(2-Ethylhexyl)Phthalate <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) Butyl Benzyl Phthalate <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Carbazole <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Chrysene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Di-n-Butyl Phthalate <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Di-n-Octyl Phthalate <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Dibenz(a,h)Anthracene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Díbenzofuran <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Díethyl Phthalate <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Dimethyl Phthalate <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Fluoranthene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Fluorene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Hexachlorobenzene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Hexachlorobutadiene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48)

Hexac~rocyclopentadiene <12 ppb 12 ppb EPA-8270C OJP 26-Mar-99(20:48) <:6& P'inted""fCCycloop~þnf. Please see reverse side for explanation of terms and other information.

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Report no: 9901470

Client: Tetra Tech



Hexachloroethane <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)

Indeno(1,2,3-cd)pyrene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48) Isophorone <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48) N-Nitrosodi-N-propylamine <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)

N-Nitrosodiphenylamine <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)



Phenanthrene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)

Pyrene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(20:48)

Nitrobenzene-d5( surrogate) 112 % Rec NA EPA-8270C DJP 26-Mar-99(20:48) 2-Fluorobiphenyl( surrogate) 92 % Rec NA EPA-8270C DJP 26-Mar-99(20:48) Terphenyl-d 14( surrogate) 110%Rec NA EPA-8270C DJP 26-Mar-99(20:48)

Chloromethane <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:22)

Vinyl Chloride <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:22)

Bromomethane <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:22) Chloroethane <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:22)

Acetone <100 ppb 100 ppb EPA-8260B THP 21-Mar-99(14:22)

1,1-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22) Carbon Disulfide <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Methylene Chloride <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

trans-1,2-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

1,1-Dichloroethane <5 ppb 5 ppb EPA"8260B THP 21-Mar-99(14:22)

2-Butanone <100 ppb 100 ppb EPA-8260B THP 21-Mar-99(14:22)

cis-1,2-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(1422) Chloroform <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

1,1,1- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(1422)

Carbon Tetrachloride <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22) '^' Please see reverse side for explanation of terms and other information. ~&""lOl~on'ecvcied"açer_

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Report no: 9901470

Client: Tetra Tech





Benzene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

1,2-Dichloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Trichloroethene 36 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

1,2-Dichloropropane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Bromodichloromethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

4-Methyl-2-Pentanone <50 ppb 50 ppb EPA-8260B THP 21-Mar-99(14:22)

cis-1,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

trans-1,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

1 , 1,2- Trichloroethane <5 ppb 5 ppb EPA-8260B' THP 21-Mar-99(14:22)

2-Hexanone <50 ppb 50 ppb EPA-8260B THP 21-Mar-99(14:22)

Toluene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Tetrachloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Dibromochloromethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Chlorobenzene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Ethylbenzene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Total Xylenes <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:22)

Styrene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Bromoform <5 ppb 5 ppb EPA-8260B THP 21-Mar -99( 14 :22)

1,1,2,2-Tetrachloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:22)

Dibromofluoromethane( surrogate) 110%Ree NA EPA-8260B THP 21-Mar-99(14:22)

1,2-Dichloroethane-d4(surrogate) 99 % Ree NA EPA-8260B THP 21-Mar-99(14:22)

T oluene-d8( surrogate) 99 % Rec NA EPA-8260B THP 21-Mar-99(14:22)

Bromofluorobenzene( surrogate) 112 % Ree NA EPA-8260B THP 21-Mar-99(14:22)

Diesel Range Organics(C10-C28)

n-Pentacosane( surrogate)

<120 ppb

89 % Ree

120 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(02:36)

SLB 23-Mar-99(02:36)

,7'1, ~J(..v f'fi"tM""'~cy<::I"dP"Dcr Please see reverse side for explanation of terms and other information.

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Page 7 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-1 TOTAL; GRAB collected on 17-Mar-99(14:35) LaboratOl)' Sample Number: 990005597

Parameter Test

Results Laboratory

Reporting Limit Method Analyst Date of Analysis

Gasoline Range Organics(C6-C10)

T rifluorotoluene( surrogate)

<100 ppb

105 % Rec

100 ppb

NA

EPA-8015B

EPA-8015B

NJ

NJ

19-Mar-99(09:52)

19-Mar-99(09:52)

Mercury(Hg) <0.0002 ppm 0.0002 ppm EPA-7470A CSG 26-Mar-99(15:22)

Antimony(Sb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(23:34)

Arsenic(As) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar -99(22:00)

Beryllium(Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:00) Cadmium(Cd) <0.0005 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(22:00) Chromium(Cr) 0.0050 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:00) Copper(Cu) 0.008 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:00)

Lead(Pb) 0.006 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:00) NickeJ(Ni) 0.013 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:00)

Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:00)

Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(22:00) Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(22:00)


ffi ~;:YPri,\t"dQnf""~Gl<'<l>Ydr}e' Please see reverse side for explanation of terms and other information.

~as~n~ne Ifiahnratnrics, ;1Jur. Baltimore, MD 21224

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Client:

Sampleld:

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Page 8 of 30

9901470

Tetra Tech

Submitted samples: MW.3 TOTAL; GRAB collected on 17-Mar-99(12:10) Laboratory Sample Number: 990005598

Test Laboratory Dateot Parameter Results Reporting Limit Method Analyst Analysis

2,4,5- Trichlorophenol <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

2,4,6- Trichlorophenol <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

2,4-Dichlorophenol <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

2,4-0imethylphenol <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

2,4-0initrophenol <50 ppb 50 ppb EPA-8270C DJP 26-Mar-99(21 :28)

2-Chlorophenol <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

2-Methylphenol <10 ppb 10 ppb EPA-8270C OJP 26-Mar -99(21: 28)

2-Nitrophenol <10 ppb 10 ppb EPA-8270C OJP 26-Mar-99(21 :28)

4,6-Dinitro-2-Methyl Phenol <50 ppb 50 ppb EPA-8270C DJP 26-Mar-99(21 :28)

4-Chloro-3-Methyl Phenol <20 ppb 20 ppb EPA-8270C DJP 26-Mar-99(21 :28)

4-Methylphenol <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28) 4-Nitrophenol <50 ppb 50 ppb EPA-8270C OJP 26-Mar-99(21:28)

Pentachlorophenol <50 ppb 50 ppb EPA-8270C OJP 26-Mar-99(21:28) Phenol <10 ppb 10 ppb EPA-8270C OJP 26-Mar-99(21:28) 2-Fluorophenol( surrogate) 21 % Rec NA EPA-8270C OJP 26-Mar-99(21:28) Phenol-d5(surrogate) 12% Rec NA EPA-8270C OJP 26-Mar-99(21:28)

2,4,6- Tribromophenol( surrogate) 29 % Rec NA EPA-8270C DJP 26-Mar-99(21 :28)


1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

2,4-Dinitrotoluene

2,6-Dinitrotoluene

2-Chloronaphthalene

2 -Methylnaphthalene

2-Nitroaniline

3,3'-Dichlorobenzidine m

l6.::'Y P,;rnatJ ''''' r~cycle;jp~pp"

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<50 ppb

<20 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

50 ppb

20 ppb

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21:28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

DJP 26-Mar-99(21 :28)

Please see reverse side for explanatíon of terms and other information.

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Report no: 9901470

Client: Tetra Tech




3-Nitroaniline <50 ppb 50 ppb EPA-8270C DJP 26-Mar-99(21 :28)

4-Bromophenyl Phenyl Ether <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

4-Chloroaniline <20 ppb 20 ppb EPA-8270C DJP 26-Mar-99(21 :28)

4-Chlorophenyl Phenyl Ether <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)


Acenaphthene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Acenaphthylene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28)

Anthracene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Benzo(a)Anthracene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Benzo( a )Pyrene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Benzo(b)Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Benzo(g,h,i)Perylene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28)

Benzo(k)Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28) Bis(2-Chloroethoxy)Methane <10 ppb 10 ppb EPA-8270C DJP 26-Mar -99(21 :28)

Bis(2-Chloroethyl)Ether <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28)

Bis(2-Chloroisopropyl)Ether <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28) Bis(2 -Ethylhexyl)Phthalate <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Butyl Benzyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 26-Mar -99(21: 28)

Carbazole <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Chrysene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28) Di-n-Butyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Di-n-Octyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Dibenz( a, h )Anthracene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21:28)

Dibenzofuran <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Diethyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Dimethyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Fluorene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Hexachlorobenzene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Hexachlorobutadiene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Hexachlorocyclopentadiene <10 ppb 1Ò ppb EPA-8270C DJP 26-Mar-99(21 :28) ~ P'inIadoore"Yd..upap~r Please see reverse side for explanation of terms and other information.

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Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-3 TOTAL; GRAB collected on 17-Mar-99(12:10) laboratory Sample Number: 990005598



Indeno( 1,2,3-cd)Pyrene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Isophorone <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

N-Nitrosodi-N-propylamine <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

N-Nitrosodiphenylamine <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Naphthalene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Nitrobenzene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Phenanthrene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Pyrene <10 ppb 10 ppb EPA-8270C DJP 26-Mar-99(21 :28)

Nitrobenzene-d5( surrogate) 105 % Rec NA EPA-8270C DJP 26-Mar-99(21 :28)

2-Fluorobiphenyl( surrogate) 93 % Rec NA EPA-8270C DJP 26-Mar-99(21 :28)

Terphenyl-d14( surrogate) 113%Rec NA EPA-8270C DJP 26-Mar-99(21 :28)


Vinyl Chloride <25 ppb 25 ppb EPA-8260B THP 20-Mar -99(16:20)

Bromomethane <25 ppb 25 ppb EPA-8260B THP 20-Mar-99(16:20)

Chloroethane <25 ppb 25 ppb EPA-8260B THP 20-Mar-99(16:20)


1,1-Dichloroethene <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)

Carbon Disulfide <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20) Methylene Chloride <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)




cis-1,2-Dichloroethene 91 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20) Chloroform <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)

1 , 1

, 1- Trichloroethane <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20) Carbon Tetrachloride <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)

(7;) Please see reverse side for explanation of terms and other information. V~&F'(i"t'>d""r~"'Y;.I'>'lpaP'''

Qf)&scn~1te Ifiahnratnrics, ~nc. Baltimore, MD 21224

~~I~~([j)lfllr ([j)f ?\~#.\l Y'l3~~

(410) 633.1800

FAX NO. (410) 633-5443

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Report no:

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Sample Id:

9901470

Tetra Tech

Submitted samples: MW-3 TOTAL; GRAB collected on 17-Mar-99(12:10) Laboratory Sample Number: 990005598

Test Laboratory Date of Parameter Results Reporting limit Method Analyst Analysis



T richloroethene 380 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20) 1,2-Dichloropropane <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)





1,1,2-Trichloroethane <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)






Ethylbenzene <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20) Total Xylenes <25 ppb 25 ppb EPA-8260B THP 20-Mar-99(16:20) Styrene <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)

Bromoform <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)

1,1,2,2- Tetrachloroethane <12 ppb 12 ppb EPA-8260B THP 20-Mar-99(16:20)

Dibromoftuoromethane( surrogate) 105 % Rec NA EPA-8260B THP 20-Mar-99(16:20)

1,2-Diehloroethane-d4(surrogate) 98 % Ree NA EPA-8260B THP 20-Mar-99(16:20)

Toluene-d8(surrogate) 101 % Ree NA EPA-8260B THP 20-Mar-99(16:20) Bromofluorobenzene( surrogate) 113 % Ree NA EPA-8260B THP 20-Mar-99(16:20)

Diesel Range Organies(C10-C28)

n-Pentaeosane( surrogate)

430 ppb

87 % Ree

100 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(03:18) SLB 23-Mar-99(03:18)

I~ '("Jð' P,.,tl\M "" ,~./)'Ue<j l'8Dt'r. Please see reverse side for explanation of terms and other information.

Qf)as:cnlJuc Ifiahnratnrics, c3Ju:c~

Baltimore, MD 21224 (410) 633-1800

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Report no: 9901470

Client: Tetra Tech


Parameter Test

Results Laboratory

Reporting Limit Method Analyst Dateot Analysis



170 ppb

105 % Ree

100 ppb

NA

EPA-8015B

EPA-6015B

NJ

NJ

19-Mar-99(10:22)

19-Mar-99(10:22)

Mereury(Hg) <0.0002 ppm 0.0002 ppm EPA-7470A CSG 26-Mar-99(15:24)


Arsenie(As) 0.008ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:04)

Beryllium(Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:04)

Cadmium(Cd) <0.0005 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(22:04)

Chromium(Cr) 0.0057 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:04)



Niekel(Ni) 0.009 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:04)


Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar -99(22 04)

ThalJium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(22:04)

Zine(Zn) 0.11 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(22:04)

.

m <:6& P"m~"on'e")rrl<>df'ilP'" Please see reverse side for explanation of terms and other information.

Qf)(tscn~tte Ifiahnratnries, ~ttc. Baltimore, MD 21224

~~IE!P\Çi)[F:flr i:(d)f #\~#\l'ìf~O~

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9901470

Tetra Tech

Submitted samples: PZ-2 TOTAL; GRAB collected on 17-Mar-99(11:10)

Laboratory Sample Number: 9900D5599


2,4 ,5- T richlorophenol <11 ppb 11 ppb EPA-8270e DJP 26-Mar-99(22:08)

2,4,6- T richlorophenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

2,4-Dichlorophenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:08)

2,4-Dimethylphenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

2,4-Dinitrophenol <55 ppb 55 ppb EPA-827De DJP 26-Mar-99(22:D8)

2-ehlorophenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

2-Methylphenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

2-Nitrophenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

4,6-Dinitro-2-Methyl Phenol <55 ppb 55 ppb EPA-827De DJP 26-Mar-99(22:D8)

4-ehloro-3-Methyl Phenol <22 ppb 22 ppb EPA-827De DJP 26-Mar-99(22:D8)

4-Methylphenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

4-Nitrophenol <55 ppb 55 ppb EPA-B27De DJP 26-Mar-99(22:D8)

Pentachlorophenol <55 ppb 55 ppb EPA-B27De DJP 26-Mar-99(22:D8)

Phenol <11 ppb 11 ppb EPA-827De DJP 26-Mar-99(22:D8)

2-Fluorophenol( surrogate) 23 % Rec NA EPA-827De DJP 26-Mar-99(22:D8)

PhenOI-d5(surrogate) 14 % Rec NA EPA-827De DJP 26-Mar-99(22:D8)

2,4,6- Tribromophenol( surrogate) 15%Rec NA EPA-827De DJP 26-Mar-99(22:D8)


1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

2,4-Dinilrotoluene

2,6-Dinitrotoluene

2-ehloronaphthalene

2 -Methylnaphthalene

2-Nitroaniline

3,3' -Dichlorobenzidine m

ç;a Prjnl~d M ,ec\"cte<l pape'.

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<55 ppb

<22 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

55 ppb

22 ppb

EPA-8270e

EPA-8270e

EPA-8270e

EPA-8270e

EPA-827De

EPA-8270e

EPA-8270e

EPA-8270e

EPA-8270e

EPA-8270e

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

DJP 26-Mar-99(22:08)

Please see reverse side for explanation of terms and other information.

~as-cn~uc lllahnratnrics1 ~uc. Baltimore, MD 21224

(410) 633-1800

!R{~IPiD)[J:\{ìf (Q)f Þ\ilìiJ#\IL'1~il:g FAX NO (4101 633"5443

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Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: PZ.2 TOTAL; GRAB collected on 17-Mar-99(11:10) Laboratory Sample Number: 990005599


3-Nitroaniline <55 ppb 55 ppb EPA-8270C DJP 26-Mar-99(22:08) 4-Bromophenyl Phenyl Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)


4-Chlorophenyl Phenyl Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)


Acenaphthene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)




Benzo(a)Pyrene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Benzo(b)Fluoranthene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08) Benzo(g,h,i)Perylene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08) Benzo(k)Fluoranthene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08) Bis(2-Chloroethoxy)Methane <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Bis(2-Chloroethyl)Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Bis(2-Chloroisopropyl)Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Bis(2 -Ethylhexyl)Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Butyl Benzyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Carbazole <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Chrysene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Di-n-Butyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Di-n-Octyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08) Dibenz( a,h )Anthracene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)



Fluoranthene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)




HexacJÆ>rocyclopentadìene _

<11 ppb .

11 ppb EPA-8270C .

DJP 26-Mar-99(22:08) ?-jd P'inted ~n '''''VUe<:! P"De1, Please see reverse Side for explanation of terms and other mformatlon.

~ai'í.co~u~ Ifiahoratnrics, c3Jur:.

Baltimore, MD 21224 (410) 633.1800

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(410) 633.5443

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Page 1S of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: PZ-2 TOTAL; GRAB collected on 17-Mar-99(11:10) Laboratory Sample Number: 990005599




Indeno(1,2,3-cd)Pyrene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

Isophorone <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)

N-Nitrosodi-N-propylamine <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08) N-Nitrosodiphenylamine <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08)




pyrene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:08) Nitrobenzene-d5( surrogate) 56 % Rec NA EPA-8270C DJP 26-Mar-99(22:08) 2-Fluorobiphenyl( surrogate) 49 % Rec NA EPA-8270C DJP 26-Mar-99(22:08) Terphenyl-d 14( surrogate) 51 %Rec NA EPA-8270C DJP 26-Mar-99(22:08)

Chloromethane <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:55) Vinyl Chloride <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(1455) Bromomethane <10 ppb 10 ppb EPA-8260B THP 21-Mar-99(14:55)

Chloroethane <10 ppb 10 ppb EPA-8260B THP 21-Mar-99( 14:55)


1,l-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)





cis-1,2-Dichloroethene 9 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)

Chloroform <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)

1,1 , 1- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)

Carbon Tetrachloride <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55) w

Please see reverse side for explanation of terms and other information. ~iY Prj"l"d ~n !~Çycle<J p~par

~zt~fCnt1u,e llIahnrainricz, 1'u(:. ~ '- cV

Baltimore, MD 21224 (410) 633~1800

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Report no:

Client:

Sampleld:

9901470

Tetra Tech

Submitted samples: PZ-2 TOTAL; GRAB collected on 17-Mar-99(11:10} Laboratory Sample Number: 990005599


Benzene 14 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)


Trichloroethene 10 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55) 1,2-Dichloropropane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)








T etrachloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55)







1,1,2,2- Tetrachloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(14:55) Dibromofiuoromethane(surrogate) 110%Rec NA EPA-8260B THP 21-Mar-99(14:55)

1,2-Dichloroethane-d4(surrogate) 97 % Rec NA EPA-8260B THP 21-Mar-99(14:55) Toluene-d8(surro9ate) 99 % Rec NA EPA-8260B THP 21-Mar-99(14:55)

Bromofluorobenzene( surrogate) 111 %Rec NA EPA-8260B THP 21-Mar-99(14:55)


n-Pentacosane( surrogate)

2500 ppb

80 % Rec

110 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(04:00)

SLB 23-Mar-99(04:00)

w O.J~ìPrirrt""don'''''YCI''''p;lDe' Please see reverse side for explanation of terms and other information.

~as:cn~uc Ifiahnrutnrics, ~u:c.. Baltimore, MD 21224

(410) 633.1800

~i!EIP(Q)[f:{'lr (ì)fF J\~&U.\F~il~ FAX NO.

(410) 633-5443

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Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: PZ-2 TOTAL; GRAB collected on 17-Mar-99(11:10) Laboratory Sample Number: 990005599



Gasoline Range Organies(C6-Cl0) <100 ppb 100 ppb EPA-8015B NJ 19-Mar-99(10:53)

T riftuorotoluene( surrogate) 103 % Ree NA EPA-8015B NJ 19-Mar-99( 10:53)


Antimony(Sb) 0.012 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(23:42)

Arsenie(As) 0.D18 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:08)

Beryllium(Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:08)

Cadmium(Cd) 0.0052 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(22:08)

Chromium(Cr) 0.52 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:08) Copper(Cu) 0.090 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:08) Lead(Pb) 0.047 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:08)



Silver(Ag) 0.001 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(22:08)

Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(22:08) Zine(Zn) 0.41 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(22:08)

-0}, v.JÇY P,""ed OIL '''L'1diN Þ~lier Please see reverse side for explanation of terms and other information.

Oia5rn~u~ Ifiahnratnri~5, ~ur. Baltimore, MD 21224

~~[l2Jrg~u (jJ)f ~\~J';\lV:g~~

(110) 633-1800

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Report no: 9901470

Client: Tetra Tech



2,4 ,5- Trichlorophenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

2,4,6- Trichlorophenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) 2,4-Díchlorophenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) 2,4-Dimethylphenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

2,4-Dinltrophenol <55 ppb 55 ppb EPA-8270C DJP 26-Mar -99(22: 48) 2-Chlorophenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

2-Methylphenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) 2-Nitrophenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) 4,6-Dinitro-2-Methyl Phenol <55 ppb 55 ppb EPA-8270C DJP 26-Mar-99(22:48) 4-Chloro-3-Methyl Phenol <22 ppb 22 ppb EPA-8270C DJP 26-Mar-99(22:48)




Phenol <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

2-Fluorophenol( surrogate) 23% Rec NA EPA-8270C DJP 26-Mar-99(22:48)

Phenol-d5(surrogate) 12% Rec NA EPA-8270C DJP 26-Mar-99(22:48)

2,4 ,6- Tribromophenol( surrogate) 18% Rec NA EPA-8270C DJP 26-Mar-99(22:48)


1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dlchlorobenzene

2,4-Dlnitrotoluene

2,6-Dlnitrotoluene

2-Chloronaphthalene

2-Methylnaphthalene

2-Nitroaniline

3,3'-Dichlorobenzidine

m

\Sa P'fIll"""" '''''Yded pal>'"

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<55 ppb

<22 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

55 ppb

22 ppb

EPA-8270C

EPA-827OC

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)

DJP 26-Mar-99(22:48)


Qþascn~1t.e Ifiahnratnric$} ~u.c. Baltimore, MD 21224

(410) 633-1800

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Report no: 9901470

Client: Tetra Tech





3-Nitroaniline <55 ppb 55 ppb EPA-8270C DJP 26-Mar -99(22 :48)

4-Bromophenyl Phenyl Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)










Benzo(g,h,ì)Perylene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) Benzo(k)Fluoranthene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

Bìs(2-Chloroethoxy)Methane <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) Bis(2-Chloroethyl)Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

Bis(2-Chloroisopropyl)Ether <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) Bis(2-Ethylhexyl)Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)




Di-n-Butyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

Di-n-0ctyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

Dibenz(a,h)Anthracene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)



F1uoranthene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)




Hexachlorocyclopentadiene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) 4;~ Pri~t~ll'Jnfecyçledpape'. Please see reverse side for explanation of terms and other information.

~us-cn~u-c Ifiuhnratnric$, c31ur. Baltimore, MD 21224

(4101633.1800

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Page 20 of 30

Report no:

Client:

Sampleld:

9901470

Tetra Tecll

Submitted samples: MW-2 TOTAL; GRAB collected on 17-Mar-99{16:05) Laboratory Sample Number: 990005600



Hexachloroethane <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) Indeno( 1,2 ,3-cd)Pyrene <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) Isophorone <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)

N-Nitrosodi-N-propylamine <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48) N-Nitrosodiphenylamine <11 ppb 11 ppb EPA-8270C DJP 26-Mar-99(22:48)





Nitrobenzene-d5( surrogate) 105 % Rec NA EPA-8270C DJP 26-Mar-99(22:48) 2-Fluorobiphenyl{ surrogate) 89 % Rec NA EPA-8270C DJP 26-Mar -99(22:48) T erphenyl-d14( surrogate) 99 % Rec NA EPA-8270C DJP 26-Mar-99(22:48)




Chloroethane <10 ppb 10 ppb EPA-8260B THP 20-Mar-99(0004)

Acetone <100 ppb 100 ppb EPA-8260B THP 20-Mar-99(0004)


Carbon Disulfide <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04)


trans-1,2-Dichloroelhene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04)

1,l-Dichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04)





Carbon Tetrachloride <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04)

170 Please see reverse side for explanation of terms and other information. \6i.-V r.i~lp.òGnfe<;ycle<!D"P"f

Oíias-cu~ttC Ifiahuraturics, ~u-c. Baltimore, MD 21224

(410) 633.1800

~~pi(5)ll<tr (gf #\~l#\llJt~O;jl FAXNQ (410) 633-5443

www.gascoj.ne.com

Page 21 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-2 TOTAL; GRAB collected on 17-Mar-99{16:05) Laboratory Sample Number: 990005600






4-Methyl-2-Pentanone <50 ppb 50 ppb EPA-8260B THP 20-Mar -99(00:04)

cis-l,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04) trans-l ,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04)


2-Hexanone <50 ppb 50 ppb EPA-8260B THP 20-Mar-99(00:04 )


Tetrachloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04) Dibromochloromethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04) Chlorobenzene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04) Ethylbenzene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:04)



Bromoform <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(0004) 1,1,2,2-Tetrachloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(0004) Dibromofluoromethane( surrogate) 97 % Rec NA EPA-8260B THP 20-Mar-99(00:04) 1 ,2-Dichloroethane~4(surrogate) 97 % Rec NA EPA-8260B THP 20-Mar-99(00:04) Toluene~8(surrogate) 101 % Rec NA EPA-8260B THP 20-Mar-99(00:04) Bromofluorobenzene( surrogate) 108 % Rec NA EPA-8260B THP 20-Mar-99(00:04)

Diesel Range Organics(Cl0-C28) n-Pentacosane( surrogate)

340 ppb

80 % Rec

100 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(04:42)

SLB 23-Mar-99(04:42)

ro \6(9 rfi"j~<1 (In '''''yCI".,j pap~'- Please see reverse side for explanation of terms and other information.

(6)as-co~nc Ifitthoratoricz, ~tlC. Baltimore, MD 21224

fl?~!Ë~(Q)lfnr ilJl[F ~\å~j\l 'V~~~

(410) 633-1800

FAX NO. (410) G33-5443

WWW.gascoyne.com

Page 22 of 30

Report no:

Client:

Sampleld:

9901470

Tetra Tech

Submitted samples: MW-2 TOTAL; GRAB collected on 17-Mar-99(16:05} laboratory Sample Number 990005600

Parameter Test

Results laboratory

Reporting limit Method Analyst Date of Analysis


Trifluorotoluene( surrogate)

<100 ppb

100 % Rec

100 ppb

NA

EPA-8015B

EPA-8015B

NJ

NJ

19-Mar-99(11:24)

19-Mar-99(11:24)


Antimony(Sb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(23:46) Arsenic(As) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:12) Beryllium(Be) 0.008 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:12)


Chromium(Cr) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:12)

Copper(Cu) 0.015 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:12)

lead(Pb) <00050 ppm 0.0050 ppm EPA-6020 GJK'" 30-Mar-99(22:12)

Nickel(Ni) 0.12 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:12) Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 3D-Mar -99(22: 12)

Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(22: 12)

Thallium(TI) <00020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(22:12)


m

\6d P(",'~d on teo;yCl~ r-"pDr Please see reverse side for explanation of terms and other information.

Qf)as-eo\luc Ifiahnratnrics, (~hu:. Baltimore, MD 21224

(410) 633-1600

~<LE[Pl(Ql~u íQl~ Aá'M\l'\(~~~ FAX NO

(410) 633.5443

www.gaSt-.Oyfle.com

Page 23 of 30

Report no:

Client:

Sample Id:

9901470

Tetra Tech

Submitted samples: MW-4 TOTAL; GRAB collected on 17-Mar-99(16:45) Laboratory Sample Number: 990005601




Vinyl Chloride 34 ppb 10 ppb EPA-8260B THP 20-Mar-99(00:36)



Acetone <100 ppb 100 ppb EPA-8260B THP 20-Mar-99(00:36) 1,1-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36)







1 ,1,1- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36)


Benzene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(OO:36)


Trichloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36) 1,2-Dichloropropane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36)


4-Methyl-2-Penlanone <50 ppb 50 ppb EPA-8260B THP 20-Mar-99(00:36)



1,1,2- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36)





Chlorobenzene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36) Ethylbenzene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36)

Total Xct(enes <10 ppb 10 ppb EPA-8260B THP 20-Mar-99(00:36) \?-J0> P'int""<>nre~ycledp<1"er. Please see reverse side for explanation of terms and other information.

Qf)as:cn~u~ llltthnratnries, ~tt:C. Baltimore, MD 21224

{410} 633-1800

FAX NO (410) 633.5443 ~{~(l2l(Q)~tIJ' ((1l1F j\iM#\LV~U~

www.gascoync.com

Page 24 of 30

Report no: 9901470

Client: Tetra Tech



Parameter Results Reporting Limit Methòd Analyst Analysis


Bromoform <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(OO:36)

l,l,2,2-Tetraehloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(00:36)

Dibromoftuoromethane( surrogate) 97 % Ree NA EPA-8260B THP 20-Mar-99(00:36) l,2-Diehloroethane-d4(surrogate) 101 % Ree NA EPA-8260B THP 20-Mar-99(0036) Toluene-d8( surrogate) 102% Ree NA EPA-8260B THP 20-Mar-99(00:36)

Bromoftuorobenzene( surrogate) 108 % Rec NA EPA-8260B THP 20-Mar-99(00:36)

= ~BPlirrted""mt)'CIGd?<'þ<er. Please see reverse side for explanation of terms and other information.

~ascnl!n:e 1fiahnratnri:es, ~1t(:~ Baltimore. MD 21224

(410) 633-1800

rR{~(f')\Q)if{ìf ((][F ~\frl!JtÁ\ltr'~aidl FAX NO. (410,633-5443

www.gascoyne.com

Page 25 of30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: TRIP BLANK collected on 11-Mar-99(06:00) Laboratory Sample Numbe~ 990005602

Test Laboætory Date of


Chloromethane <10 ppb 10 ppb EPA-8260B THP 20-Mar -99(01 :09)

Vinyl Chloride <10 ppb 10 ppb EPA-8260B THP 20-Mar -99(01 :09)

Bromomethane <10 ppb 10ppb EPA-8260B THP 20-Mar -99(01 :09)

Chloroethane <10 ppb 10 ppb EPA-8260B THP 20-Mar-99(01 :09)

Acetone <100 ppb 100 ppb EPA-8260B THP 20-Mar-g9(01 :09)

1,1-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Carbon Disulfide <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Methylene Chloride <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(0109)


1,1-Dichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

2-Butanone <100 ppb 100 ppb EPA-8260B THP 20-Mar-99(01 :09)

cis-1,2-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Chloroform <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

1, 1 , 1- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Carbon Tetrachloride <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Benzene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

1,2-Dichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Trichloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

1,2-Dichloropropane <5 ppb 5ppb EPA-8260B THP 20-Mar-99(01 :09)

Bromodichloromethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

4-Methyl-2-Pentanone <50 ppb 50 ppb EPA-8260B THP 20-Mar-99(01 :09)

cis-1,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

trans-1,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

1,1,2-Trichloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

2-Hexanone <50 ppb 50 ppb EPA-8260B THP 20-Mar-99(01 :09)

Toluene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Tetæchloroethene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Dibromochloromethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Chlorobenzene <5 ppb 5 ppb EPA-826GB THP 20-Mar-99(01:09)

Ethylbenzene <5 ppb 5 ppb EPA-826GB THP 20-Mar-99(G1 :09)

Total~enes <10 ppb 10 ppb EPA-8260B THP 20-Mar-99(01 :09) r..sdPfinleúonT~C)l"led(lBper Please see reverse side for explanation of terms and other information.

Q()aßt:nlluc %ahnratnricß, ~nc4' Baltimore, MD 21224

(410)633-1800

~~il2l((j)~u (gf j\~#\lL'û"~a~ FAX NO_

(410) 633-5443

www_gascoyne.com

Page 26 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: TRIP BLANK collected on 11-Mar-99(06:00) Laboratory Sample Number: 990005602


Styrene <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09}

Bromoform <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(0109}

1,1,2,2- Tetrachloroethane <5 ppb 5 ppb EPA-8260B THP 20-Mar-99(01 :09)

Dibromotluoromethane( surrogate} 99 % Rec NA EPA-8260B THP 20-Mar-99(01 :09}

1 ,2-Dichloroethane-d4( surrogate) 99 % Rec NA EPA-8260B THP 20-Mar-99(01:09) Toluene-d8(surrogate} 101 % Rec NA EPA-8260B THP 20-Mar-99(01:09}

Bromofluorobenzene(surrogate} 109% Rec NA EPA-8260B THP 20-Mar-99(01 :09)

m r;;s& Pnn1edGnIOCyçl~"<lþllpf.'f Please see reverse side for explanation of terms and other information.

Q?}tt~.cnl!n~ 11Iahnratnrit~1 ~n.c. Baltimore, MD 21224

(410l633~1800

~!E~'\Ûl[f'tlr 1))f j.\lf>!JAlL''iI'~U~ F-AXNO. (410) 633-5443

www.gascoyno.com

Page 27 of30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-1 DISS; GRAB collected on 17-Mar-99(14:35) Laboratory Sample Number: 990005614

Parameter Test

Results Laboratory

Reporting limit Method Analyst Date of Analysis



Arsenic(As) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99( 19:39)

Beryllium(Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99( 19:39)

Cadmium(Cd) <0.0005 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(19:39)



Lead(Pb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar -99( 19: 39)




Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(19:39)


,P, ~.16iP""led"r."'cycledllape< Please see reverse side for explanation of terms and other informatîon.

Qf)a$rn~u-e 1fiahnratnri~5J ~ttr~ Baltimore, MD 21224

[f~IE!PíQl[Ft{ íQllF J,W~]J-\l Y~!J~

(410)633-1800

FAX NO. (410) 633-5443

www.gascoync.com

Page 28 of30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-3 DISS; GRAB collected on 17-Mar-99(12:10)


Parameter Test

Results Laboratory



Antimony(Sb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99( 19:43)

Arsenic(As) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar -99( 19:43)

Beryllium(Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:43) Cadmium(Cd) <0.0005 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(19:43)

Chromium(Cr) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99( 19:43)



Nickel(Ni) 0007 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(19:43)

Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(19:43) Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(19:43)

Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(19:43} Zinc(Zn) 0.09 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(19:43)

r~ \56' P"nt8ð,,~ t"~YCI,'d pa~r Please see reverse side for explanation of terms and other ínformation.

~aS-Cl1~tt-C Ifiahnratnrics, c31u!:+

Baltimore, MD 21224 (410) 633-1800

FAX NO. (410) 633-5443 If?{IE[j2JÚJIf':{lf iQ}!F AiMAl V'13~~

\'/'wwgascoyne.com

Page 29 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: PZ-2 DISS; GRAB collected on 17-Mar-99(11:10) Laboratory Sample Number: 990005616

Parameter Test

Results Laboratory



Anlimony(Sb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar -99( 19:4 7)

Arsenic(As) 0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(19:47) Beryllium(Be) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:47)

Cadmium(Cd) <0.0005 ppm 0.0005 ppm EPA-6020 CJK 3D-Mar -99( 19:47)


Copper(Cu) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99( 19:47)



Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(19:47) Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99( 19:47)

Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(19:47) Zinc(Zn) <0.020 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(19:47)

(70 q;d Prinl"1"n''''~'YclC<,jr;)f>n, Please see reverse side for explanation of terms and other information.

~as.cn~ttt lllahnrafnrics, ~nr.. Baltimore, MD 21224

(410) 633-1800

~{~~(Ç;þ~{lr g[F iÁ\~iAl V~il~ FAX NO.

(41Q) 633.5443

www.gascoyne.com

Page 30 of 30

Report no: 9901470

Client: Tetra Tech

Sample Id: Submitted samples: MW-2 DISS; GRAB collected on 17-Mar-99(16:05)


Parameter Test

Results Laboratory



Antimony(Sb) <0.0050 ppm 0.0050 ppm EPA-û020 CJK 30-Mar -99( 1 9:51 ) Arsenic(As) <0.005 ppm 0.005 ppm EPA-û020 CJK 30-Mar-99(19:51)

Beryllium(Be) 0.0081 ppm 0.0025 ppm EPA-û020 CJK 30-Mar-99(19:51)

Cadmium(Cd) 0.017 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(19:51) Chromium(Cr) <0.0025 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:51)

Copper(Cu) 0.013 ppm 0.0050 ppm EPA-û020 CJK 30-Mar-99(19:51)

Lead(Pb) <0.0050 ppm 0.0050 ppm EPA-û020 CJK 30-Mar -99( 1 9: 51)

Nickel(Ni) 0.11 ppm 0.0050 ppm EPA-û020 CJK 30-Mar-99(19:51)

Selenium(Se) <0005 ppm 0.005 ppm EPA-û020 CJK 30-Mar-99(19:51)

Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-û020 CJK 30-Mar-99(1 9:51)

Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-û020 CJK 30-Mar-99(19:51)

Zinc(Zn) 0.55 ppm 0.020 ppm EPA-û020 CJK 30-Mar -99( 1 9: 51 )

ill \!ßPrifllC'jcll""'i'Gladll<'per. Please see reverse side for explanation of terms and other information.

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Rancho Cordeva, CA 95670 AUn: Nisha Bansal

Page 1 of 22

Report No: 9901498

This report of analysis contains test results for the following samples submitted to Gascoyne Laboratories, Inc. for project MARTIN AIRPORT:

Received by Client Sample ID., Sample Type Lab Sample No. Gascoyne

MW-5 DISSOLVED; grab, 1B-Mar-1999(1130) Groundwater 990005673 1B-Mar-1999

TRIP BLANK; grab, 17-Mar-1999(1757) Water 990005674 1 B-Mar -1999

MW-6 DISSOLVED; grab, 18-Mar-1999(1254) Groundwater 990005675 18-Mar -1999

MW-7 DISSOLVED; grab, 1B-Mar-1999(1130) Groundwater 990005676 1 B-Mar -1999

MW-5 TOTAL; grab, 18-Mar-1999(1130) Ground Water 990005677 18-Mar -1999

MW-6 TOTAL; grab, 18-Mar-1999(1254) Groundwater 990005678 18-Mar-1999

(7;) ít,('YP'ir.,""""r"(".Vd"1.þ.;pe, Please see reverse side for explanation of terms and other information.

Qj}ascn~u:e 1fiahnratnri:es, ~u-c. Baltimore, MD 21224

~ ~ifDt}) írt1f (fJ) IF J.\IM #\iLY ~ U:E5

(410) 633-1800

FAXNQ. (410) 633-5443

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Rancho Cordeva, CA 95670

Attn: Nisha Bansal

Page 2 of22 Report No: 9901498

Client Sample 1.0.,

MW-7; grab, 18-Mar-1999(1130)

Sample Type

Groundwater

Lab Sample No.

990005679

Received by

Gascoyne

18-Mar-1999


A) Cover Letter

B) Test Results

C) Chain-of-Custody

All samples were analyzed following EPA protocols and other recognized methodologies as specified in the

report. All laboratory Quality Control(QC) data associated with this report are within established control limits unless otherwise noted in this report.


Maryland :109; Delaware: MD015; Virginia: 00152; New Jersey: 60637; Pennsylvania: 68-339; New York: 11158; A2LA: 410.01; AIHA:8885; US Army Corps of Engineers;



certifications.


/. ~#9" Report issue date Final report reviewed by: Ja s H. Newman, Client Services Manager

m

~a Prj~leó 0<\ f"~"y"J~<:l paper Please see reverse side for explanation of terms and other information.

~as:cn~ttr 1ûahnratnri~s, ~ttC~ Baltimore, MD 21224

ífg~[Pl!dllfkìf (Ù)f j.\IP!Jj\l'f~il~

(410) 633-1800

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www.gascoync_com

Page 3 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-S DISSOLVED; grab collected on 18-Mar-99(11:30) Laboratory Sample Number: 990005673

Parameter Test

Results Laboratory

Reporting Limit Method Analyst Dateo! Analysis



Arsenic(As) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(1954) Beryllium(Be) 0.0086 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:54)


Chromium(Cr) 0.0060 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:54) Copper(Cu) 0.085 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(19:54)

Lead(Pb) 0.012 ppm 0.0050 ppm EPA-6020 CJK 30-Mar -99( 19 54)


Selenium(Se) 0.020 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(19:54)

Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(19:54) Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(19:54) Zinc(Zn) 0.43 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(19:54)

GO VJ!:) f'rinte<l.mrecycll>dp;ll'.... Please see reverse side for explanation of terms and other information.

Qf)as.cn~uc Ifiahnratnrics, ~ttc. Baltimore, MD 21224

(410) 633-1800

iR{~[l5iþ)lfflr IQ)[F J;\~iÀlLV~il~ FAX NO.

(410) 633.5443

www.gascoyne.colll

Page 4 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: TRIP BLANK; grab collected on 17-Mar-99(17:57)




Chloromethane <10 ppb 10 ppb EPA-8260B THP 19-Mar-99(20:15) Vinyl Chloride <10 ppb 10 ppb EPA-8260B THP 19-Mar-99(20:15)

Bromomethane <10 ppb 10 ppb EPA-8260B THP 19-Mar-99(20: 15)


Acetone <100 ppb 100 ppb EPA-8260B THP 19-Mar-99(20:15) 1 ,1-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15)

Carbon Disulfide <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15) Methyiene Chloride <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15)

trans-l,2-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15)

1,1-Dichloroethane <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)


cis-l,2-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15)

Chloroform <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)

1,1,1- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15)



1,2-Dichloroethane <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)

Trichloroethene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)

1,2-Dichloropropane <5 ppb 5 ppb EPA-8260B THP 19-Mar -99(20 15)



cis-1,3-Dichloropropene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(2015)

trans-l,3-Dichioropropene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20 15)

1,1,2-Trichloroethane <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20 15)

2-Hexanone <50 ppb 50 ppb EPA-8260B THP 19-Mar-99(2015)

Toluene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)

Tetrachloroethene <5 ppb 5 ppb EPA-8260B THP 19-Mar -99(20: 15)


Chlorobenzene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20:15) Ethylbenzene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)

TotalX~nes <10 ppb 10 ppb EPA-8260B THP 19-Mar -99(20: 15) \6:!ìPrillledOllrecy<:j'''IP8!''''. Please see reverse side for explanation of terms and other informationo

~ascot1ttC 1fiahnratnrics, ~ur4' Baltimore, MD 21224

W'<lElF)~[fgu iQ)!F #-\iNliÄ\l \r~~$2~

(410) 633.1BOO

FAX NO. (410) 633.5443

WWW.gascoyne.com

Page 5 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: TRIP BLANK; grab collected on 17-Mar-99(17:57) Laboratory Sample Number: 990005674



Styrene <5 ppb 5 ppb EPA-8260B THP 19-Mar-99(20: 15)



Dibromoftuoromethane( surrogate) 98 % Rec NA EPA-8260B THP 19-Mar-99(20:15)

1 ,2-Dichloroethane-d4( surrogate) 94 % Rec NA EPA-8260B THP 19-Mar-99(20: 15)

Toluene-d8(surrogate) 100 % Rec NA EPA-8260B THP 19-Mar-99(20: 15)

Bromoftuorobenzene( surrogate) 105 % Rec NA EPA-8260B THP 19-Mar-99(20: 15)

ill YJ(Yr>rlnt"'lon,ec-fcle'lpapf'!{ Please see reverse side for explanation of terms and other information.

(ias.co\luc 1finhorntnrics, ;1hu.:. Baltimore, MD 21224

[f{~If5iQ)[ftU' ((j)f ~~~iL1~O~

(410) 633-1800

FAX NO. í4tO) 633-5443

ViWW.gascoyne.com

Page 6 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-6 DISSOLVED; grab collected on 18-Mar-99{12:54)

laboratory Sample Number: 990005675

Parameter Test

Results laboratory




Arsenic(As) <0005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(19:58)

Beryllium(Be) 0.0041 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(19:58)

Cadmium(Cd) 0.0014 ppm 0,0005 ppm EPA-6020 CJK 30-Mar -99( 19: 58)


Copper(Cu) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar -99( 19:58)

lead(Pb) <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar -99( 19:58)

Nickel(Ni) 0.034 ppm 0.0050 ppm EPA-6020 CJK 30-Mar -99( 19:58)





00 ç:,ty P'inIW _"L '~'1'''IOO pap'" Please see reverse side for explanation of terms and other information.

Qf)as-eutluc jIIahnratnric5, ~UJ:~ Baltimore, MD 21224

(410) 633-1800

~lE[l2J(Q)Ir('1r ((j)[F #\~tAl V~~~ FAX NO. (41Oj 633"5443

www.gascoync.Gom

Page 7 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-7 DISSOLVED; grab collected on 18-Mar-99(11:30) Laboratory Sample Number: 990005676

Parameter Test

Results Laboratory

Reporting Limit Method Analyst Dateo! Analysis

Mercury(Hg) <0,0002 ppm 0,0002 ppm EPA-7470A CSG 25-Mar-99(16:22)

Antimony(Sb) <0,0050 ppm 0,0050 ppm EPA-6020 CJK 30-Mar-99(20:02)

Arsenic(As) <0,005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(20:02)

Beryllium(Be) 0,0086 ppm 0,0025 ppm EPA-6020 CJK 30-Mar-99(20:02)

Cadmium(Cd) 0,022 ppm 0,0005 ppm EPA-6020 CJK 30-Mar-99(20:02)

Chromium(Cr) 0,0053 ppm 0,0025 ppm EPA-6020 CJK 30-Mar-99(20:02)

Copper(Cu) 0,073 ppm 0,0050 ppm EPA-6020 CJK 30-Mar-99(20:02)

Lead(Pb) 0,013 ppm 0,0050 ppm EPA-6020 CJK 30-Mar-99(20:02)

Nickel(Ni) 0,16 ppm 0,0050 ppm EPA-6020 CJK 30-Mar-99(20:02)

Selenium(Se) 0,018 ppm 0,005 ppm EPA-6020 CJK 30-Mar-99(20:02)

Silver(Ag) <0,0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(20:02)

Thallium(TI) <0,0020 ppm 0,0020 ppm EPA-6020 CJK 30-Mar-99(20:02)

Zinc(Zn) OA3ppm 0,020 ppm EPA-6020 CJK 30-Mar-99(20:02)

CO ~(>>Prinl<><lO~f""'YCI"ðl'fl?ef_ Please see reverse side for explanation of terms and other information.

Qf},n3rn~ttC Ifiabnratnrie5, ~tt-C~ Baltimore, MD 21224

~{le~@~u @!F iÁ\~iÁ\l \ìf~il~

(410) 633-1800

FAX NO. (410) 633-5443

www.gasçoyne_corn

Page 8 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-5 TOTAL; grab collected on 18-Mar-99(11:30} Laboratory Sample Number: 990005677



2,4,6- T richlorophenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28}

2,4-Dichlorophenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28}

2,4-Dimethylphenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28}

2,4-Dinitrophenol <60 ppb 60 ppb EPA-8270C DJP 26-Mar-99(23:28) 2-Chlorophenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

2-Methylphenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28) 2-Nitrophenol <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

4,6-Dìnitro-2-Methyl Phenol <60 ppb 60 ppb EPA-8270C DJP 26-Mar-99(23:28)


4-Methylphenol 22 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

4-Nitrophenòl <60 ppb 60 ppb EPA-8270C DJP 26-Mar-99(23:28) Pentachlorophenol <60 ppb 60 ppb EPA-8270C DJP 26-Mar-99(23:28) Phenol 15 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

2-Fluorophenol( surrogate) 31 % Rec NA EPA-8270C DJP 26-Mar-99(23:28)

Phenol-d5( surrogate) 18 % Rec NA EPA-8270C DJP 26-Mar-99(23:28)

2,4 ,6- T ribromophenol( surrogate) 37 % Rec NA EPA-8270C DJP 26-Mar-99(23:28)


1,2-Dichlorobenzene

1 ,3-Dìchlorobenzene 1 ,4-Dichlorobenzene

2,4-Dinitrotoluene

2,6-Dinitrotoluene

2-Chloronaphthalene

2-Methylnaphlhalene

2-Nitroaniline

3,3' -Dichlorobenzidine

pc> ~(9 r'r"'l~<l M recycled pap~f

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<12 ppb

<60 ppb

<24 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

12 ppb

60 ppb

24 ppb

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28) DJP 26-Mar-99(23:28)

DJP 26-Mar-99(23:28)


~,n:H:n~nc %ahnratnri:e~, ~n~. Baltimore, MD 21224

~lElP(ld)if;{ìr :ÙJIF #\lMß\l11:;jjil~

(410) 633-1800

FAX NO. (410) 633-5443

www.gascoyne.com

Page 9 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-5 TOTAL; grab collected on 18-Mar-99(11:30) Laboratory Sample Number: 990005677










Anthracene <:12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

Benzo(a)Anthracene <:12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)



Benzo(g,h,i)Perylene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

Benzo(k)Fluoranthene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28) Bìs(2-Chloroethoxy)Methane <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28) Bìs(2-Chloroethyl)Ether <:12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

Bis(2-Chloroisopropyl)Ether <:12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

Bis(2-Ethylhexyl)Phthalate <:12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)




Di-n-Butyt Phthalate <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

Di-n-Octyl Phthalate <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)








Hexac')lgrocyclopentadiene .

<12 ppb .

12 ppb EPA-82~OC .

DJP 26-Mar-99(23:28)

Ç'"Jd P'i~!ed"n r""ydM PðP<"- Please see reverse side for explanation of terms and other information.

&)as(:n~uc I1Iahnratnries, ~ttC~ Baltimore, MD 21224

[f~~(pJ!:Ql~t:r CQIF A~j\lL'ìf:~a~

(410) 633.1800

FAX NO. í410) 633-5443

www_gascoync.com

Page 10 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-5 TOTAL; grab collected on 18-Mar.99(11:30} Laboratory Sample Number: 990005677




Indeno( 1,2, 3-cd)Pyrene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)


N-Nitrosodi-N-propylamine <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)

N-Nitrosodiphenylamine <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28) Naphthalene 50 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28)



Pyrene <12 ppb 12 ppb EPA-8270C DJP 26-Mar-99(23:28) Nitrobenzene-d5( surrogate) 106 % Rec NA EPA-8270C DJP 26-Mar-99(23:28 ) 2-Fluorobiphenyl( surrogate) 94 % Rec NA EPA-8270C DJP 26-Mar-99(23:28)

Terphenyl-d14(surrogate) 97 % Rec NA EPA-8270C DJP 26-Mar-99(23:28)

Chloromethane <5000 ppb 5000 ppb EPA-8260B THP 22-Mar-99(18:21) Vinyl Chloride <5000 ppb 5000 ppb EPA-8260B THP 22-Mar-99(18:21)

Bromomethane <5000 ppb 5000 ppb EPA-8260B THP 22-Mar-99(18:21 ) Chloroethane <5000 ppb 5000 ppb EPA-8260B THP 22-Mar-99(18:21 )

Acetone <50000 ppb 50000 ppb EPA-8260B THP 22-Mar-99(18:21) 1 ,1-Dichloroethene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21)






Chloroform <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21) 1

, 1

, 1- Trichloroethane 3000 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21)

Carbon Tetrachloride <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21) (70

Please see reverse side for explanation of terms and other information. ~èYP(jnted"nfc"YdOOPnP""

~as-cn~ue 1fia:hnratnries1 ~fn-c~ Baltimore, MD 21224

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Report no: 9901498

Client: Tetra Tech







1,2-Dichloropropane <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21)

Bromodichloromethane <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21 )



trans-1,3-Dichloropropene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21 )

1,1,2-TlÍchloroethane <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21 )


Toluene 5800 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21)

Tetrachloroethene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21}

Dibromochloromethane <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21}

Chlorobenzene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21} Ethylbenzene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21}



Bromoform <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21) 1,1,2,2-Tetrachloroethane <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:21)

Dibromofluoromethane( surrogate} 113 % Ree NA EPA-8260B THP 22-Mar-99(18:21)

1,2-Diehloroethane-d4(surrogate} 98 % Rec NA EPA-8260B THP 22-Mar-99(18:21} Toluene-d8( surrogate} 98 % Ree NA EPA-8260B THP 22-Mar-99(18:21}

Bromofluorobenzene( surrogate) 116 % Ree NA EPA-8260B THP 22-Mar-99(18:21)

Diesel Range Organics(C10-C28}


2800 ppb

79 % Ree

130 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(05:23)

SLB 23-Mar-99(05:23}

(<) ~dPrinledo""";Ycledf'ð"'" Please see reverse side for explanatíon of terms and other information.

~ascnlJnc jIIahnratnric5, ~ ltC. Baltimore, MD 21224

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Page 12 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-5 TOTAL; grab collected on 18-Mar-99(11:30) Laboratory Sample Number. 990005677

Parameter Test

Results

Laboratory Reporting Limit Method Analyst

Date 01 Analysis



46000 ppb

105 % Ree

10000 ppb

NA

EPA-8015B

EPA-8015B

NJ

NJ

22-Mar-99(09:35)

22-Mar-99(09:35)



Arsenic(As) 0.012 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:16)

Beryllium(Be) 0.0096 ppm 0.0025 ppm EPA-6020 CJK 30-Mar -99(22: 16)


ChrOmium(Cr) 0.021 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:16)

Copper(Cu) 0.12 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:16) Lead(Pb) 0.034 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:16)

Nicke/(Ni) 017 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:16)



Thallium(TI) <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar -99(22: 16)


C0 S& P'i"l~d"~ 'c~~di>d 11'''''''- Please see reverse side for explanation of terms and other information.

<ias-cn~nc 1liahnratnrics, ~n-c~ Baltimore, MD 21224

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Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-6 TOTAL; grab collected on 18-Mar-99(12:54)

Laboratory Sample Number 990005678

Test Laboratory Dateo!





2,4-Dimethylphenol <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)



2-Methylphenol <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) 2-Nitrophenol <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

4,6-Dinitro-2-Methyl Phenol <50 ppb 50 ppb EPA-8270C DJP 27-Mar-99(OO:07)

4-Chloro-3-Methyl Phenol <20 ppb 20 ppb EPA-8270C DJP 27 -Mar-99(00:07)

4-Methylphenol <10 ppb 10 ppb EPA-8270C DJP 27 -Mar-99(00:07)



Phenol <10 ppb 10 ppb EPA-8270C DJP 27 -Mar-99(00:07)

2-Fluorophenol( surrogate) 62% Rec NA EPA-8270C DJP 27-Mar-99{OO:07)

Phenol-d5{surrogate) 44% Rec NA EPA-8270C DJP 27 -Mar-99{OO:07)

2,4,6- Tribromophenol( surrogate) 22 % Rec NA EPA-8270C DJP 27-Mar-99{OO:07)


1,2-Dichlorobenzene 1 ,3-Dichlorobenzene

1,4-Dichlorobenzene

2,4-Dinitrotoluene

2,6-Dinitrotoluene

2-Chloronaphthalene

2-Methylnaphthalene

2-Nitroaniline

3,3'-Dichlorobenzidine =

\(,l) Pli,,!e<J""tecY"I"Jp~p":

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<10 ppb

<50 ppb

<20 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

10 ppb

50 ppb

20 ppb

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

DJP 27-Mar-99(00:07) DJP 27-Mar-99(00:07)

DJP 27-Mar-99(00:07)

DJP 27-Mar-99(00:07)

DJP 27-Mar-99(00:07)

DJP 27-Mar-99(00:07)

DJP 27-Mar-99{OO:07)


DJP 27 -Mar-99{OO:07)



~,n3(:n~ttC 1fiahnratnric5, ~u.c4' Baltimore, MD 21224

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Report no: 9901498

Client: Tetra Tech



3-Nitroaniline <50 ppb 50 ppb EPA-8270C DJP 27 -Mar-99(00:07) 4-Bromophenyl Phenyl Ether <10 ppb 10 ppb EPA-827DC DJP 27-Mar-99(00:07)




Acenaphthene <10 ppb 10 ppb EPA-8270C DJP 27 -Mar-99(00:07)


Anthracene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(OO:07)

Benzo( a )Anthracene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Benzo(a)Pyrene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

Benzo(b)Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Benzo(g,h,i)Perylene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Benzo(k)Fluoranthene <10 ppb 10 ppb EPA-8270C DJP 27 -Mar-99(00:07)

Bis(2 -Chloroethoxy)Methane <10 ppb 10ppb EPA-8270C DJP 27-Mar-99(00:07) Bis(2-Chloroethyl)Ether <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

Bis(2-Chloroisopropyl)Ether <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Bis(2-Ethylhexyl)Phthalate <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)


Carbazole <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Chrysene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Di-n-Butyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

Di-n-Octyl Phthalate <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Dibenz(a,h)Anthracene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

Dibenzo!uran <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

Diethyl Phthalate <10 ppb 10ppb EPA-8270C DJP 27-Mar-99(00:07) Dimethyl Phthalate <10 ppb 10ppb EPA-8270C DJP 27-Mar-99(00:07)


Fluorene <10 ppb 10ppb EPA-8270C DJP 27-Mar-99(00:07)

Hexachlorobenzene <10 ppb 10ppb EPA-8270C DJP 27-Mar-99(00:07)

Hexachlorobutadiene <10 ppb 10 ppb EPA-8270C DJP 27 -Mar-99(00:07) HexaclÆrocyclopentadiene <10 ppb 10 ppb EPA-8270C DJP 27 -Mar -99( 00: 07)

~a Pcintw~""~çycl^,dp..þ?r. Please see reverse side for explanation of terms and other information.

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Report no: 9901498

Client: Tetra Tech





Indeno(1,2,3-cd)Pyrene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)


N-Nitrosodi-N-propylamine <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)

N-Nitrosodiphenylamine <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07) Naphthalene <10 ppb 10 ppb EPA-8270C DJP 27-Mar-99(00:07)


Phenanthrene <10 ppb 10 ppb EPA-8270C DJP 27 -Mar-99(00:07)


Nitrobenzene-d5( surrogate) 111 %Rec NA EPA-8270C DJP 27-Mar-99(00:07)

2-Fluorobiphenyl( surrogate) 89% Rec NA EPA-8270C DJP 27-Mar-99(00:07)

Terphenyl-d 14(surrogate) 96 % Rec NA EPA-8270C DJP 27-Mar-99(00:07)







Carbon Disulfide <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50) Methylene Chloride <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50}

trans-1,2-Dichloroethene <5 ppb 5 ppb EPA-8260B THP 21-Mar -99( 13:50)


2-Butanone <100 ppb 100 ppb EPA-8260B THP 21-Mar-99(1350) cis-1,2-Dichloroethene 43 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50)

Chloroform 5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50)

1,1,1-Trichloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50}

Carbon Tetrachloride <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50}

at Please see reverse side for explanation of terms and other informatìon. ~&P(irrt.,óûn,,,'qcle<JpaP~'.

~a$rn\luc 1fiahnratnric51 ~nr. Baltimore, MD 21224

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Report no: 9901498

Client: Tetra Tech


Test Laboratory Dale of





1,2-Dichloropropane <5 ppb 5 ppb EPA-826GB THP 21-Mar -99( 13: 50)

Bromodichloromethane <5 ppb 5 ppb EPA-826GB THP 21-Mar-99(13:50)

4-Methyl-2-Pentanone <50 ppb 50 ppb EPA-826GB THP 21-Mar-99(13:50)

cis-1 ,3-Dichloropropene <5 ppb 5 ppb EPA-826GB THP 21-Mar-99(13:50)


1,1,2- Trichloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:5G)







Total Xylenes <1G ppb 10 ppb EPA-8260B THP 21-Mar-99(13:50)



1,1,2,2- Tetrachloroethane <5 ppb 5 ppb EPA-8260B THP 21-Mar-99(13:50)

Dibromofiuoromethane(surrogate) 111 %Rec NA EPA-8260B THP 21-Mar-99(13:50) 1,2-Dichloroethane-d4( surrogate) 99 % Rec NA EPA-8260B THP 21-Mar-99(13:50) Toluene-d8(surrogate) 99 % Rec NA EPA-8260B THP 21-Mar-99(13:50) Bromofiuorobenzene( surrogate) 113 % Ree NA EPA-8260B THP 21-Mar-99(13:50)

Diesel Range Organies(C10-C28)


<10G ppb

65 % Ree

100 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(06:G5)

SLB 23-Mar-99(06:G5)

iN \!JdPnntMollr""yc.IW-lr><JP"", Please see reverse side for explanation of terms and other information.

~a$cnU1tC 1fi(thnratnrie~, c3Juc. Baltimore, MD 21224

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FAX NO. (410) 633-5443 [F:{rElfìliQ)itRìí iÇ;))fF :A~J#\l V~O~

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Report no: 9901498

Client: Tetra Tech


Parameter Test

Results Laboratory

Reporting Limit Method Analyst Date 01 Analysis

Gasoline Range Organics(C6-C10}

Trilluorotoluene( surrogate)

<100 ppb

105 % Ree

100 ppb

NA

EPA-B015B

EPA-B015B

NJ

NJ

19-Mar-99(1B:54)

19-Mar-99(1B:54)

Mereury(Hg) <0,0002 ppm 0.0002 ppm EPA-7470A CSG 25-Mar-99(16:27)

Antimony(Sb} <0.0050 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(23:53)

Arsenie(As) 0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:20)

Beryllium(Be) 0.0040 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:20) Cadmium(Cd) 0.0010 ppm 0.0005 ppm EPA-6020 CJK 30-Mar-99(22:20)



lead(Pb} 0.007 ppm 0.0050 ppm EPA-6020 CJK 30-Mar"99(22:20)


Selenium(Se) <0.005 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:20) Silver(Ag) <0.0010 ppm 0.0010 ppm EPA-6020 CJK 30-Mar-99(22:20)

Thallium(TI} <0.0020 ppm 0.0020 ppm EPA-6020 CJK 30-Mar-99(22:20}

Zine(Zn) 0.10 ppm 0.020 ppm EPA-6020 CJK 30-Mar-99(22:20}

iN oJ!!) I'riflle<l Qf! r~c'yd,,<.II'U'Wf Please see reverse side for explanation of terms and other information.

(1î)as-cn~uc ]fiahnratnrics, ~ttC~ Baltimore, MD 21224

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Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-7; grab collected on 18-Mar-99(11:30)



2,4,5- Trichlorophenol <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

2,4,6- Trichlorophenol <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)


2,4-Dimethylphenol <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

2,4-Dinitrophenol <55 ppb 55 ppb EPA-8270C DJP 27-Mar-99(OO:48)

2-Chlorophenol <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

2-Methylphenol 11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

2-Nitrophenol <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

4,6-Dinitro-2-Methyl Phenol <55 ppb 55 ppb EPA-8270C DJP 27-Mar-99(00:48)


4-Methylphenol 28 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)


Pentachlorophenol <55 ppb 55 ppb EPA-8270C DJP 27 -Mar-99(00:48)

Phenol 27 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

2-Fluorophenol( surrogate) 92 % Rec NA EPA-8270C DJP 27 -Mar-99(OO:48)

Phenol-d5(surrogate) 69 % Reo NA EPA-8270C DJP 27-Mar-99(00:48)

2,4,6- T ribromophenol( surrogate) 62 % Rec NA EPA-8270C DJP 27-Mar-99(00:48)

1 ,2,4- T richlorobenzene

1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

2,4-Dinitrotoluene

2,6-Dinitrotoluene

2-Chloronaphthalene

2-Methylnaphthalene

2-Nitroaniline

3,3'-Dichlorobenzidine m

\2,& P'in1&óanr~"~"k<lp",~"".

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<11 ppb

<55 ppb

<22 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

11 ppb

55 ppb

22 ppb

EPA-8270C

EPA-8270C

EPA_8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

EPA-8270C

DJP 27-Mar-99(00:48)

DJP 27-Mar-99(OO:48)

DJP 27-Mar-99(00:48)

DJP 27-Mar-99(OO:48)

DJP 27-Mar-99(00:48)

DJP 27-Mar-99(00:48}

DJP 27-Mar-99(00:48)

DJP 27-Mar-99(00:48)

DJP 27-Mar-99(00:48)

DJP 27-Mar-99(00:48)


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Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-7; grab collected on 18-Mar-99(11:30) Laboratory Sample Number: 990005679

Parameter Test

Results Laboratory

Reportin9 Limit Method Analyst Date of Analysis



4-Chloroaniline <22 ppb 22 ppb EPA-8270C DJP 27-Mar-99(00:48) 4-Chlorophenyl Phenyl Ether <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48)

4-Nitroaniline <55 ppb 55 ppb EPA-8270C DJP 27-Mar-99(OO:48)






Benzo(b)Fluoranthene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Benzo(g,h,í)perylene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) Benzo(k)Fluoranthene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) Bis(2-Chloroethoxy)Methane <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) Bis(2-Chloroethyl)Ether <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Bis(2-Chloroisopropyl)Ether <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48)

Bis(2-Ethylhexyl)phthalate <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Butyl Benzyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Carbazole <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Chrysene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Di-n-Butyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Di-n-Octyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48)


Dibenzofuran <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)

Diethyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) Dimethyl Phthalate <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(OO:48)





Hexachlorocyciopentadlene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) @ Prlll,><J Ull ,,,C'/d,,,1 rall8r Please see reverse side for explanation of terms and other information.

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Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-7; grab collected on 18-Mar-99(11:30)




Hexachloroethane <11 ppb 11 ppb EPA-8270C DJP 27 -Mar-99(00:48)

Indeno(1,2,3-cd)pyrene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48)


N-Nitrosodi-N-propylamine <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) N-Nitrosodiphenylamine <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48) Naphthalene 45 ppb 11 ppb EPA-8270C DJP 27-Mar-99(00:48)

Nitrobenzene <11 ppb 11 ppb EPA-8270C DJP 27-Mar-99(0048)



Nitrobenzene-d5( surrogate) 110%Rec NA EPA-8270C DJP 27 -Mar -99(00:48)

2-Fluorobiphenyl( surrogate) 93 % Rec NA EPA-8270C DJP 27-Mar-99(00:48) Terphenyl-d 14( surrogate) 77 % Rae NA EPA-8270C DJP 27-Mar-99(00:48)

Chloromethane <5000 ppb 5000 ppb EPA-8260B THP 22-Mar -99( 18: 54)


Bromomethane <5000 ppb 5000 ppb EPA-8260B THP 22-Mar -99( 18: 54)


Acetone <50000 ppb 50000 ppb EPA-8260B THP 22-Mar -99( 18: 54)

1 ,1-Dichloroethene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54)

Carbon Disulfide <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54)





cis-1,2-Dichloroethene 57000 ppb 2500 ppb EPA-826GB THP 22-Mar-99(18:54)


1,1,1- Trichloroethane 3100 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54)


'~ Please see reverse side for explanation of terms and other information. \:j P,jnledon recytJ~dj.l8j'~T

Qf}as-cn~u:e Ifiahnratnrics, (~htc. Baltimore, MD 21224

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Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-7; grab collected on 18-Mar-99(11:30) Laboratory Sample Number: 990005679


Benzene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54 )




4-Methyl-2-Pentanone <25000 ppb 25000 ppb EPA-8260B THP 22-Mar-99(18:54) cis-1,3-Dichioropropene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54) trans-1,3-Dichloropropene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar -99( 18:54)


2-Hexanone <25000 ppb 25000 ppb EPA-8260B THP 22-Mar -99(18:54)


T etrachloroethene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54)


Chiorobenzene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54) Ethylbenzene <2500 ppb 2500 ppb EPA-8260B THP 22-Mar-99(18:54)





Dibromoftuoromethane( surrogate) 112%Rec NA EPA-8260B THP 22-Mar-99(18:54) 1 ,2-Dichloroethane-d4( surrogate) 99 % Rec NA EPA-8260B THP 22-Mar-99(18:54) T oluene-d8(surrogate) 97% Rec NA EPA-8260B THP 22-Mar-99(18:54)

Bromoftuorobenzene( surrogate) 111 % Rec NA EPA-8260B THP 22-Mar-99(18:54)



2500 ppb

77 % Ree

110 ppb

NA

EPA-8015B

EPA-8015B

SLB 23-Mar-99(06:47)

SLB 23-Mar-99(06:47)

,-VD, V-::!o Pnnledonr"",.doKlpaper Please see reverse side for explanation of terms and other informatìon.

~as~nllttC 1fiahnratnrics, c31u~. Baltimore, MD 21224

(410) 633-1800

FAX NO (410) 633.5443 [f~:ElF)1Jl~ìr (Q)rF J,\!fil!Á\IL'1:E>\il:E>\

www_gascoyne.com

Page 22 of 22

Report no: 9901498

Client: Tetra Tech

Sample Id: Submitted samples: MW-l; grab collected on 18-Mar-99(11:30) Laboratory Sample Number: 990005679

Parameter

Test Results

Laboratory Reporting Limit Method Analyst

Date of Analysis

Gasoline Range Organies(C6-C10)


48000 ppb

106% Ree

10000 ppb

NA

EPA-8015B

EPA-80158

NJ

NJ

22-Mar-99(11 :08)

22 -Mar -99( 11: 08)



Arsenie(As) 0.017 ppm 0.005 ppm EPA-6020 CJK 30-Mar-99(22:23)

Beryllium(Be) 0.0096 ppm 0.0025 ppm EPA-6020 CJK 30-Mar-99(22:23)




Lead(Pb) 0.046 ppm 0.0050 ppm EPA-6020 CJK 30-Mar-99(22:23)






(t) VJ&P,inled""",C';/cledpaper Please see reverse side for explanation of terms and other information.

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