In cooperation with the U.S. Air Force, Aeronautical Systems Center,

Environmental Management Directorate, Wright-Patterson Air Force Base, Ohio

Subsurface Occurrence and Potential 

Source Areas of Chlorinated Ethenes 

Identified Using Concentrations and 

Concentration Ratios, Air Force Plant 4 

and Naval Air Station-Joint Reserve Base 

Carswell Field, Fort Worth, Texas 

Scientific Investigations Report 2005–5176 

U.S. Department of the Interior

U.S. Geological Survey
Blank Page
Subsurface Occurrence and Potential 

Source Areas of Chlorinated Ethenes 

Identified Using Concentrations and 

Concentration Ratios, Air Force Plant 4 

and Naval Air Station-Joint Reserve Base 

Carswell Field, Fort Worth, Texas

By C. Amanda Garcia

U.S. Department of the Interior

U.S. Geological Survey

In cooperation with the U.S. Air Force, Aeronautical Systems Center,

Environmental Management Directorate, Wright-Patterson Air Force Base, Ohio

Scientific Investigations Report 2005–5176
U.S. Department of the Interior

Gale A. Norton, Secretary

U.S. Geological Survey

P. Patrick Leahy, Acting Director

U.S. Geological Survey, Reston, Virginia: 2005

For sale by U.S. Geological Survey, Information Services

Box 25286, Denver Federal Center

Denver, CO 80225

For more information about the USGS and its products:

Telephone: 1-888-ASK-USGS

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Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply

endorsement by the U.S. Government.

Although this report is in the public domain, permission must be secured from the individual copyright owners to

reproduce any copyrighted materials contained within this report.

Suggested citation:

Garcia, C.A., 2005, Subsurface occurrence and potential source areas of chlorinated ethenes identified using

concentrations and concentration ratios, Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field,

Fort Worth, Texas: U.S. Geological Survey Scientific Investigations Report 2005–5176, 81 p. 
iii

Contents

Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Study Area Setting and Remediation of Chlorinated Ethenes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Indicators of Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes . . . . . . . . . . . . 2

Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Hydrogeology and Directions of Ground-Water Flow in the Alluvial Aquifer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Subsurface Occurrence of Chlorinated Ethenes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Concentrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Ratios of Concentrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Potential Source Areas of Chlorinated Ethenes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix—Alluvial aquifer data pertinent to this report, Air Force Plant 4 and Naval Air Station-Joint 

Reserve Base Carswell Field, Fort Worth, Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas, 1984–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas, 1983–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell 

Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial 

aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell 

Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations 

in the alluvial aquifer, used to compute parent-compound to daughter-product 

concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003 . . . . . . . . . . . . . . . . . . . . . . . 65

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE)

concentrations in the alluvial aquifer, used to compute parent-compound to daughterproduct concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint 

Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003 . . . . . . . . . 70

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene 

(cis-DCE) concentrations in the alluvial aquifer, used to compute concentration ratios, 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figures

1–3. Maps showing: 

1. Location of Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
iv

2. Altitude of the top of the Goodland-Walnut confining unit, Air Force Plant 4 (AFP4) 

and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, 

Fort Worth, Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Water table and direction of ground-water flow in the alluvial aquifer, Air 

Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1995 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4–7. Maps showing maximum historical: 

4. Trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 

(AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) 

study area, Fort Worth, Texas, 1984–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5. Tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 

(AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) 

study area, Fort Worth, Texas, 1983–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6. cis-1,2-Dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force 

Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) 

study area, Fort Worth, Texas, 1991–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7. trans-1,2-Dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air

Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas, 1983–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8–13. Graphs showing molar concentrations of: 

8. Trichloroethene (TCE), tetrachloroethene (PCE), and total 1,2-dichloroethene 

(total DCE) with distance downgradient along a generalized ground-water flow 

path beginning at well HM–64 (for simplicity, projected straight-line distance), 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell 

Field (NAS–JRB) study area, Fort Worth, Texas, 1995 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9. Trichloroethene (TCE), tetrachloroethene (PCE), and total 1,2-dichloroethene 

(total DCE) with distance downgradient along a generalized ground-water flow 

path beginning at well HM–59 (for simplicity, projected straight-line distance), 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell 

Field (NAS–JRB) study area, Fort Worth, Texas, 2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10. Trichloroethene (TCE), tetrachloroethene (PCE), and total 1,2-dichloroethene 

(total DCE) with distance downgradient along a generalized ground-water flow 

path beginning at well HM–123 (for simplicity, projected straight-line distance), 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell 

Field (NAS–JRB) study area, Fort Worth, Texas, 2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

11. Trichloroethene (TCE) with time for alluvial wells in the southern part of Air 

Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

12. Tetrachloroethene (PCE) with time for alluvial wells in the southern part of Air 

Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

13. Total 1,2-dichloroethene (total DCE) with time for alluvial wells in the southern part 

of Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

14–16. Maps showing maximum historical concentration ratios of : 

14. Tetrachloroethene (PCE) to trichloroethene (TCE) in the alluvial aquifer, Air Force 

Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas, 1983–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
v

15. Trichloroethene (TCE) to total 1,2-dichloroethene (total DCE) in the alluvial aquifer, 

Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

16. trans-1,2-Dichloroethene (trans-DCE) to cis-1,2-dichloroethene (cis-DCE) in the alluvial 

aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell 

Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

17. Map showing potential source areas of chlorinated ethenes, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, 

Texas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Vertical and Horizontal Datums

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 

(NAVD 88).

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).
Blank Page
Subsurface Occurrence and Potential 

Source Areas of Chlorinated Ethenes 

Identified Using Concentrations and 

Concentration Ratios, Air Force Plant 4 

and Naval Air Station-Joint Reserve Base 

Carswell Field, Fort Worth, Texas

By C. Amanda Garcia

Abstract

The U.S. Geological Survey, in cooperation with the 

U.S. Air Force Aeronautical Systems Center, Environmental 

Management Directorate, conducted a study during 2003–05 to 

characterize the subsurface occurrence and identify potential 

source areas of the volatile organic compounds classified as 

chlorinated ethenes at U.S. Air Force Plant 4 (AFP4) and 

adjacent Naval Air Station-Joint Reserve Base Carswell Field 

(NAS–JRB) at Fort Worth, Texas. The solubilized chlorinated 

ethenes detected in the alluvial aquifer originated as either 

released solvents (trichloroethene [TCE], tetrachloroethene 

[PCE], and trans-1,2-dichloroethene [trans-DCE]) or degradation products of the released solvents (TCE, cis-1,2-dichloroethene [cis-DCE], and trans-DCE). The combined influences of 

topographic- and bedrock-surface configurations result in a 

water table that generally slopes away from a ground-water 

divide approximately coincident with bedrock highs and the 

1-mile-long aircraft assembly building at AFP4. 

Highest TCE concentrations (10,000 to 920,000 micrograms per liter) occur near Building 181, west of Building 12, 

and at landfill 3. Highest PCE concentrations (500 to 920 

micrograms per liter) occur near Buildings 4 and 5. Highest cisDCE concentrations (5,000 to 710,000 micrograms per liter) 

occur at landfill 3. Highest trans-DCE concentrations (1,000 to 

1,700 micrograms per liter) occur just south of Building 181 

and at landfill 3. 

Ratios of parent-compound to daughter-product concentrations that increase in relatively short distances (10s to 100s of 

feet) along downgradient ground-water flow paths can indicate 

a contributing source in the vicinity of the increase. Largest 

increases in ratio of PCE to TCE concentrations are three orders 

of magnitude from 0.01 to 2.7 and 7.1 between nearby wells in 

the northeastern part of NAS–JRB. In the northern part of 

NAS–JRB, the largest increases in TCE to total DCE concentration ratios relative to ratios at upgradient wells are from 17 to 

240 or from 17 to 260. In the southern part of NAS–JRB, the 

largest ratio increases with respect to those at upgradient wells 

are from 22 and 24 to 130, and from 0 and 7.2 to 71. Numerous 

maximum historical ratios of trans-DCE to cis-DCE are greater 

than 1, which can indicate that trans-DCE likely was released 

as a solvent and does not occur only as a result of degradation 

of TCE. 

High concentrations of TCE, PCE, cis-DCE, and transDCE, abrupt increases in ratios of PCE to TCE and TCE to total 

DCE, and ratios of trans-DCE to cis-DCE greater than 1 were 

used to identify 16 potential source areas of chlorinated ethenes 

at NAS–JRB. The evidence for some of the potential source 

areas is stronger than for others, but each area reflects one or 

more of the conditions indicative of chlorinated ethenes entering the aquifer. Potential source areas supported by the strongest evidence are Building 181, between Buildings 4 and 5, just 

west of Building 12, and landfills 1 and 3. The highest historical 

TCE concentration in the study area, 920,000 micrograms per 

liter, is near Building 181. The potential source area between 

Buildings 4 and 5 primarily is identified by notably high PCE 

concentrations (as much as 920 micrograms per liter). Primary 

evidence for the potential source area just west of Building 12 

is the notably high TCE concentrations (for example, 160,000 

micrograms per liter) that appear to originate in the area. Primary evidence for the potential source area at landfills 1 and 
2 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Subsurface Occurrence 

and Potential Source 

Areas of Chlorinated 

Ethenes, AFP4 and 

NAS–JRB, Fort Worth, 

Texas

(primarily) 3 is the magnitudes of TCE concentrations (for 

example, two in the 100,000-to-920,000-microgram-per-liter 

range), cis-DCE concentrations (several in the 5,000-to710,000-microgram-per-liter range), and trans-DCE concentrations (several in the 500-to-1,700-microgram-per-liter range). 

The ratio of trans-DCE to cis-DCE at one well in landfill 3 (6.7) 

is appreciably above the threshold that can indicate likely solvent release as opposed to TCE degradation alone.

Introduction

Industrial facilities at U.S. Air Force (USAF) Plant 4 

(AFP4) and adjacent Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) at Fort Worth, Tex. (fig. 1), have been 

in operation since 1942. The facilities have manufactured aircraft, radar units, missile components, and spare parts. The 

manufacture of aircraft and related parts requires various solvents, paints, metals, oils, fuels, and other toxic chemicals. 

Some of these chemicals, primarily volatile organic compounds 

(VOCs), have been detected in high concentrations in the alluvial aquifer, the aquifer immediately beneath land surface, at 

AFP4 and NAS–JRB (U.S. Army Corps of Engineers, 1986; 

Jacobs Engineering Group Inc., 1993; Geo-Marine, Inc. 1995; 

RUST Geotech, 1995a, b, c, d; Kuniansky and others, 1996).

The U.S. Geological Survey (USGS), in cooperation with 

the USAF Aeronautical Systems Center, Environmental Management Directorate, conducted a study during 2003–05 to 

characterize the subsurface occurrence and identify potential 

source areas of the VOCs classified as chlorinated ethenes. The 

solubilized chlorinated ethenes detected in the alluvial aquifer 

originated as either released solvents (trichloroethene [TCE], 

tetrachloroethene [PCE], and trans-1,2-dichloroethene [transDCE]) or degradation products of the released solvents (TCE, 

cis-1,2-dichloroethene [cis-DCE], and trans-DCE). Concentrations of these compounds and selected ratios of compound concentrations, with regard to estimated flow directions in the alluvial aquifer, were investigated. 

The purpose of this report is to describe the use of chlorinated ethene concentrations and concentration ratios to characterize subsurface occurrence and to identify potential source 

areas of chlorinated ethenes in the alluvial aquifer at AFP4 

and NAS–JRB. The pertinent hydrogeology of the alluvial 

aquifer—structure, water levels, and preferential flow directions—are documented. The magnitude and extent of the 

subsurface occurrence of chlorinated ethenes are described. 

Geologic, hydrologic, and water-quality data were collected 

primarily by contractors for selected periods during 1983–2003 

and were obtained from the USAF Environmental Resource 

Project Information Management System (ERPIMS), a comprehensive repository for Department of Defense Superfund sites 

(U.S. Air Force Center for Environmental Excellence, 1997). 

At the time of primary analysis, 2003 water-quality data were 

not available in ERPIMS and therefore were obtained from 

Earth Tech, Inc. (David Parse, written commun., 2003). 

Study Area Setting and Remediation of Chlorinated 

Ethenes

The AFP4 and NAS–JRB study area (fig. 1) is in northwest 

Fort Worth in Tarrant County. AFP4 and NAS–JRB together 

encompass about 3,600 acres on the southeastern shore of Lake 

Worth. Land-surface altitudes range from about 680 feet above 

NAVD 88 along the southern boundary of AFP4 to about 550 

feet above NAVD 88 along the West Fork Trinity River. The 

study area is drained primarily by the West Fork Trinity River. 

The main feature of AFP4 is a 1-mile-long aircraft assembly 

building built on a topographic high that overlies north-southtrending highs in the bedrock surface. 

Several chlorinated ethene spills and source areas have 

been identified in the AFP4 and NAS–JRB study area and documented by Environmental Science and Engineering, Inc. 

(1994), RUST Geotech (1996), HydroGeoLogic, Inc. (2000, 

2002), and Earth Tech, Inc. (2004). Several remediation techniques have been implemented in the AFP4 and NAS–JRB 

study area, two of which locally affected the concentrations of 

chlorinated ethene degradation products. A phytoremediation 

research site north of Farmers Branch Creek at NAS–JRB 

(fig. 1), initiated by USAF in 1996, partially remediates chlorinated ethene at and immediately downgradient from the site 

(Eberts and others, 2003). A permeable reactive barrier, composed of 50-percent zero-valent iron and 50-percent sand, was 

installed along the southeastern border of NAS–JRB during 

April–May 2002 to remediate and prevent migration of the 

southern lobe of a chlorinated ethene plume (HydroGeoLogic, 

Inc., 2002). 

Indicators of Subsurface Occurrence and Potential 

Source Areas of Chlorinated Ethenes

A water-level-altitude map indicating directions of 

ground-water flow in the alluvial aquifer was developed using 

data from 1995. To identify the subsurface occurrence and 

potential source areas of chlorinated ethenes in the study area, 

concentrations and concentration ratios were assessed with 

regard to magnitude and location within generalized flow paths. 

Chlorinated ethenes in the aqueous phase generally 

migrate downgradient from source areas in the direction of 

ground-water flow. Source areas of chlorinated ethenes typically are areas where dense nonaqueous-phase liquids 

(DNAPL) were disposed. By mapping areal extent (plumes) 

using lines of equal chlorinated ethene concentration, source 

areas can be identified from increasing concentrations in the 

plume along downgradient ground-water flow paths, in the 

opposite direction of flow (Ram and others, 1999). 

Concentrations of solubilized TCE, PCE, cis-DCE, and 

trans-DCE detected in water from alluvial-aquifer wells were 

available for selected periods during1983–2003. Because 

water-quality samples were not routinely collected in alluvial 

wells throughout the AFP4 and NAS–JRB study area over the 

21-year period, analyzing the variability in chlorinated ethene 
Figure 1. Location of Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas (mod

Air Force Plant 4

(AFP4)

Building 181

Building 12

East parking lot

Assembly building

Building 4 (within

assembly building)

North process control laboratory

Naval Air Station–Joint

Reserve Base

Carswell Field

(NAS–JRB)

Building 5

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Meandering

Road

Creek

Permeable

reactive

barrier

Landfill 3

Landfill 1

Phytoremediation

research

site

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE
4 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

data over consecutive years was difficult. Therefore, maximum 

historical concentrations of TCE, PCE, cis-DCE, and transDCE were used to manually create plume maps to indicate the 

areal distribution of maximum concentrations of solubilized 

chlorinated ethenes in the alluvial aquifer. 

Chlorinated ethenes degrade through physical and chemical reactions, which include hydrolysis, sorption, and biodegradation (Ram and others, 1999). Anaerobic conditions (the 

absence of oxygen in the ground water) are necessary for the 

biodegradation of chlorinated ethenes (Mercer and Waddell, 

1993). Although data collected during 1993–99 by Jacobs Engineering Group, Inc. (1993) and HydroGeoLogic, Inc. (2002) 

indicate that the alluvial aquifer primarily is aerobic (a presence 

of oxygen, which limits degradation), there are localized anaerobic environments at AFP4 and NAS–JRB where reductive 

dechlorination occurs and yields degradation products.

The primary degradation product of PCE is TCE; however, 

definitive evidence indicates the use of TCE in degreasing tanks 

and the disposal of TCE in underground storage tanks and 

drums throughout the AFP4 and NAS–JRB study area (RUST 

Geotech, 1996; HydroGeoLogic, Inc., 2000). The most common degradation products of TCE are cis-DCE and trans-DCE; 

cis-DCE typically is the dominate product by a 30-to-1 ratio 

(Murphy and Morrison, 2002). If the cis-DCE concentration is 

at least 80 percent of the total 1,2-dichloroethene (total DCE) 

(sum of cis-DCE and trans-DCE) concentration, reductive 

dechlorination is likely. When the trans-DCE concentration 

is 50 percent or more of the total DCE concentration, Byl 

and Williams (2000) conclude that there is considerable likelihood that trans-DCE was released directly into the environment. However, Griffin and others (2004) conclude on the 

basis of laboratory experiments that, in the presence of some 

types of dechlorinating anaerobic bacteria, trans-DCE can 

be the major degradation product of PCE and TCE, and thus a 

large fraction of trans-DCE at a site might not indicate a direct 

source.

Murphy and Morrison (2002, p. 292) conclude, “The 

presence or absence of parent compounds and their breakdown 

products frequently provide straightforward evidence for 

source area identification.” Parent-compound to daughterproduct concentration ratios of chlorinated ethenes frequently 

are stable or temporally decrease as a result of natural attenuation in aerobic environments. Abrupt increases in parent-compound to daughter-product concentration ratios indicate a contribution from additional sources of chlorinated ethenes, which 

affects the concentration of a particular parent compound. By 

mapping parent-compound to daughter-product concentration 

ratios of the chlorinated ethenes in the study area, abrupt 

increases in ratios along generalized ground-water flow paths 

were identified. The ratios of parent-compound to daughterproduct concentrations mapped were PCE to TCE and TCE to 

total DCE. 

Also mapped was the ratio of concentrations of the two 

daughter products, trans-DCE and cis-DCE, to identify sites 

where ratios of trans-DCE to cis-DCE are 1 or more. Ratios 

were computed using molar concentration data for 1991–2003. 

Acknowledgments

The author acknowledges the assistance of staff at Earth 

Tech; HydroGeoLogic, Inc.; Shaw Environmental & Infrastructure, Inc.; and Ellis Environmental Group, L.C.

Hydrogeology and Directions of GroundWater Flow in the Alluvial Aquifer

The alluvial aquifer, the uppermost aquifer at AFP4 and 

NAS–JRB, consists primarily of clay and silt with sand and 

gravel channel deposits that might be interconnected or interfingered with buried remnants of streams (paleochannels) that 

existed during the time of deposition (Kuniansky and others, 

1996). The heterogeneous nature of the aquifer results in preferred flow paths in the more permeable sand and gravel deposits along what are interpreted to be paleochannels. The channellike low in the bedrock surface that begins east of the assembly 

building and extends southeastward beneath NAS–JRB (fig. 2) 

might mark a path where the ancient West Fork Trinity River 

flowed prior to migrating to its current location. Another likely 

paleochannel that extends from the southern end of the assembly building northeastward beneath the east parking lot might 

be the result of erosion of a tributary stream that flowed into the 

ancient West Fork Trinity River. 

In the study area the alluvial aquifer ranges in thickness 

from 0 to about 65 feet. West of the assembly building, the aquifer is 5 to 30 feet thick; immediately east of the assembly building, the aquifer thickens to 60 feet (Shah, 2004, fig. 8) along the 

identified paleochannel (Kuniansky and others, 1996, p. 14) 

that extends southeastward beneath NAS–JRB (fig. 2). 

The alluvial aquifer is recharged locally by precipitation 

where no buildings or pavement overlie the land surface. Additionally, water has leaked to the alluvial aquifer from sewers 

and pipelines at AFP4. In 1992, this leakage was estimated to be 

300,000 gallons per day (Chem-Nuclear Geotech, Inc., 1992).

Because the alluvial aquifer is a thin, unconfined aquifer 

composed of deposits that blanket an irregular bedrock surface, 

ground-water-flow directions largely are controlled by topography and the configuration of the top of bedrock. A map of the 

altitude of the top of the alluvial aquifer (Shah, 2004, fig. 7) 

shows that land-surface altitude ranges from a high of about 680 

feet above NAVD 88 in the southwestern part of the study area 

to a low of about 550 feet above NAVD 88 in the bed of the 

West Fork Trinity River in the eastern part of the study area. 

The top of bedrock is the top of the Goodland-Walnut confining 

unit. A map of the altitude of the top of the Goodland-Walnut 

confining unit (fig. 2) shows bedrock highs beneath the AFP4 

assembly building. 

The combined influences of topographic- and bedrocksurface configurations result in a water table that generally 

slopes away from a ground-water divide approximately coincident with the bedrock highs and the assembly building (fig. 3). 
Figure 2. Altitude of the top of the Goodland-Walnut confining unit, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field 

Worth, Texas (modified from Shah, 2004, fig. 10).

Air Force Plant 4

(AFP4)

Building 181

Building 12

East parking lot

Assembly building

Building 4 (within

assembly building)

North process control laboratory

Naval Air Station–Joint

Reserve Base

Carswell Field

(NAS–JRB)

Building 5

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

E

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

Meandering

Road

Creek
Figure 3. Water table and direction of ground-water flow in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base C

study area, Fort Worth, Texas, 1995.

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

EX

6

Meandering

Road

Creek

Base from U.S. Air Force, Aeronautical Systems Center

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

595

620

600 590 605

610

615

585

580

625

630

635

575 570

565

560 555 550

540

640 645

530

650

640

610

640

635

645

625

640

645 625

630

640

620

635
Subsurface Occurrence of Chlorinated Ethenes 7

Thus east of the assembly building, ground water generally 

flows west to east toward the West Fork Trinity River or Farmers Branch Creek; west of the assembly building, ground water 

flows east to west toward Meandering Road Creek and Woods 

Inlet. The general directions of ground-water flow in fall 1995 

are similar to those in May 1993 (Kuniansky and others, 1996, 

fig. 7).

Subsurface Occurrence of Chlorinated 

Ethenes

Data obtained from ground-water-quality sampling at 

AFP4 and NAS–JRB for selected periods during 1983–2003 

(appendix), primarily by consultants to USAF, were used to 

map the maximum historical concentrations of chlorinated 

ethene compounds and to compute ratios of maximum historical concentrations in the alluvial aquifer. The maps then were 

used to identify potential source areas of chlorinated ethenes at 

AFP4 and NAS–JRB. 

Concentrations

Ground-water concentrations of the solubilized chlorinated ethenes decrease over time primarily because of 

migration (dispersion) and natural attenuation at AFP4 and 

NAS–JRB. The greater part of the plume of maximum historical 

TCE concentrations in the alluvial aquifer (fig. 4) extends eastward from the assembly building at AFP4 to eastern NAS–JRB 

near the West Fork Trinity River. That part of the TCE plume 

contains three principal lobes (northern, central, and southern) 

that extend west to east in the general directions of groundwater flow. A smaller part of the TCE plume extends west of the 

assembly building. Several points of high concentration (10,000 

to 920,000 micrograms per liter [μg/L]) can be identified in the 

TCE plume. One is near Building 181, another is just west of 

Building 12, and several others are at landfill 3. A major part of 

the southern lobe of the TCE plume follows the identified paleochannel that extends southeastward beneath NAS–JRB. TCE 

concentrations of 500 to 10,000 μg/L are in parts of the southern 

lobe of the plume. According to RUST Geotech (1996), bedrock gradients might have facilitated DNAPL migration along 

the paleochannel by density-driven flow. 

The map of maximum historical PCE concentrations 

(fig. 5) shows highest concentrations (500 to 920 μg/L) near 

Buildings 4 and 5. Concentrations decrease with eastward 

migration, and the areal extent of the PCE plume is considerably less than that of the TCE plume. 

The map of maximum historical cis-DCE concentrations 

(fig. 6) shows highest concentrations (5,000 to 710,000 μg/L) 

at landfill 3. Concentrations of 1,000 to 5,000 μg/L occur along 

the southeastern part of the assembly building, the northern 

corner of the east parking lot, and in an area coincident with the 

southern lobe of the TCE plume (fig. 4) and the southeastern 

part of the identified paleochannel beneath NAS–JRB (fig. 2). 

The map of maximum historical trans-DCE concentrations (fig. 7) shows highest concentrations (1,000 to 1,700 

μg/L) just south of Building 181 and at landfill 3. The transDCE map also shows concentrations of 5 to 500 μg/L in areas 

coincident with downgradient parts of the northern and southern lobes of the TCE plume. The trans-DCE plume beneath 

Building 181 and the east parking lot, as is the case with the 

TCE and cis-DCE plumes, appears to have migrated from near 

Building 181 toward the east parking lot along the identified 

paleochannel. 

Figures 8 and 9 are graphs (1995 and 2003, respectively) 

of molar concentrations of TCE, PCE, and total DCE with 

downgradient distance along a generalized ground-water flow 

path in the area coincident with the northern lobe of the TCE 

plume. The graphs show TCE concentrations generally increasing and then decreasing downgradient, PCE concentrations 

generally decreasing downgradient (excluding the concentration at well HM–59, fig. 9), and total DCE concentrations 

increasing downgradient (excluding the concentration at well 

HM–64, fig. 8). 

Figure 10 is a graph (2003) of molar concentrations of 

TCE, PCE, and total DCE with downgradient distance along a 

generalized ground-water flow path (shorter than those of figs. 

8 and 9) in the area coincident with the southern lobe of the TCE 

plume. The graph shows TCE concentrations varying over a 

wide range with no downgradient trend, PCE concentrations all 

low, and total DCE concentrations varying over a relatively narrow range with no downgradient trend.

Figures 11–13 are graphs that show molar concentrations 

of TCE, PCE, and total DCE, respectively, during 1995–2003 at 

selected alluvial aquifer wells in the area coincident with the 

southern lobe of the TCE plume. TCE concentrations (fig. 11) 

generally attenuated over the 9-year period, although concentrations at two of the five wells were highest during the mid-part 

of the period. PCE concentrations (fig. 12) generally were low 

and stable during the period, except for those at one well 

(WP07–10B) that were essentially the same at the beginning 

and end of the period and highest during the mid-part of the 

period. Although the concentrations of total DCE (fig. 13) were 

less than those of TCE during the period, the patterns of change 

in concentration of both compounds over time at the respective 

wells were similar.

Ratios of Concentrations

As a constituent attenuates downgradient from its source, 

parent-compound to daughter-product concentration ratios 

typically decrease. Ratios that increase abruptly along downgradient ground-water flow paths can indicate a contributing 

source in the vicinity of the increase. 

Maximum historical ratios of PCE to TCE (fig. 14) 

increase appreciably over relatively short distances (10s to 100s 

of feet) downgradient in places. In the north-central part of 

NAS–JRB, PCE to TCE ratios increase downgradient along a 

generalized ground-water flow path from 0 (upgradient well 

W–155) to 0.10 and 0.03 at wells HM–119 and HM–118, 
Figure 4. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserv

(NAS–JRB) study area, Fort Worth, Texas, 1984–2003.

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Wells not shown

0 0.25 0.5 MILE

EXP

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

Area enlarged below

Northern lobe

Central lobe

Southern lobe

Base from U.S. Air Force, Aeronautical Systems Center

Meandering

Road

Creek
Figure 5. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Res

(NAS–JRB) study area, Fort Worth, Texas, 1983–2003. Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

EXP

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

Meandering

Road

Creek
Figure 6. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air Station-J

Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003.

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

EXPL

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

Area enlarged below

Wells not shown

Meandering

Road

Creek
Figure 7. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air Stat

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003. Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

Area enlarged below

Wells not shown

0 0.25 0.5 MILE

EXP

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

Meandering

Road

Creek
12 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Figure 8. Molar concentrations of trichloroethene (TCE), tetrachloroethene (PCE), and total 1,2-dichloroethene (total DCE) with distance 

downgradient along a generalized ground-water flow path beginning at well HM–64 (for simplicity, projected straight-line distance), Air 

Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1995.

Subarea location of alluvial aquifer wells from which graphed constituent data obtained. 

 DOWNGRADIENT DISTANCE, IN FEET

MOLAR CONCENTRATION OF TCE AND TOTAL DCE

MOLAR CONCENTRATION OF PCE

0 2,000 4,000 6,000 8,000 10,000

0

4x10-6

6x10-6

0

0.5x10-6

1x10-6

1.5x10-6

2x10-6

2.5x10-6

5x10-6

1x10-6

2x10-6

3x10-6

HM–64

HM–71

HM–121

GMI–22–04M

GMI–22–06M

GMI–22–03M

TCE, 1995

PCE, 1995

Total DCE, 1995

EXPLANATION

Meandering

Road

Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Building 4 (within

Building 5 assembly building)

HM–64 HM–71

HM–121

GMI–22–06M

GMI–22–04M

GMI–22–03M

97 ̊27' 97 ̊26'30" 97 ̊26' 97 ̊25'30"

32 ̊46'

32 ̊46'30"

32 ̊47'

97 ̊27'30" 97 ̊25'

EXPLANATION

General direction

of ground-water

flow, 1995

Projected straight

line

Well completed

in the alluvial

aquifer and well

number

HM–71

0 0.3 0.6 0.15 MILE

Subarea shown

Figure 1 border
Subsurface Occurrence of Chlorinated Ethenes 13

Figure 9. Molar concentrations of trichloroethene (TCE), tetrachloroethene (PCE), and total 1,2-dichloroethene (total DCE) with distance 

downgradient along a generalized ground-water flow path beginning at well HM–59 (for simplicity, projected straight-line distance), Air 

Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 2003.

Subarea location of alluvial aquifer wells from which graphed constituent data obtained.

TCE, 2003

PCE, 2003

Total DCE, 2003

EXPLANATION DOWNGRADIENT DISTANCE, IN FEET

MOLAR CONCENTRATION OF TCE AND TOTAL DCE

MOLAR CONCENTRATION OF PCE

0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000

0

1x10-6

2x10-6

3x10-6

0

2x10-8

4x10-8

6x10-8

8x10-8

10x10-8

HM–59

HM–96 HM–116

WCHMHTA010

GMI–22–03M

WSAICTA016

WCHMHTA006

Meandering

Road

Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Building 4 (within

assembly building) Building 5

GMI–22–03M

HM–59

HM–96

HM–116 WSAICTA016

WCHMHTA010

WCHMHTA006

EXPLANATION

General direction

of ground-water

flow, 1995

Projected straight

line

Well completed

in the alluvial

aquifer and well

number

HM–96

97 ̊27' 97 ̊26'30" 97 ̊26' 97 ̊25'30"

32 ̊46'

32 ̊46'30"

32 ̊47'

97 ̊25'

0 0.3 0.6 0.15 MILE

Subarea shown

Figure 1 border
14 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Figure 10. Molar concentrations of trichloroethene (TCE), tetrachloroethene (PCE), and total 1,2-dichloroethene (total DCE) with 

distance downgradient along a generalized ground-water flow path beginning at well HM–123 (for simplicity, projected straight-line 

distance), Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 

2003.

Subarea location of alluvial aquifer wells from which graphed constituent data obtained.

TCE, 2003

PCE, 2003

Total DCE, 2003

EXPLANATION

0 150 350 550 750 950 1,150

0

6x10-6

12x10-6

18x10-6

24x10-6

0

2x10-9

4x10-9

6x10-9

8x10-9

10x10-9

HM–123

WP07–10B

WHGLTA072

WHGLTA073

WHGLTA074

 DOWNGRADIENT DISTANCE, IN FEET

MOLAR CONCENTRATION OF TCE AND TOTAL DCE

MOLAR CONCENTRATION OF PCE

HM–123

WP07–10B WHGLTA074

WHGLTA073

WHGLTA072

0 200 400 FEET 100

32 ̊45'45"

32 ̊45'37.5"

97 ̊26' 97 ̊26'15"

EXPLANATION

General direction

of ground-water

flow, 1995

Projected straight

line

Well completed

in the alluvial

aquifer and well

number

HM–123

Subarea shown

Figure 1 border
Subsurface Occurrence of Chlorinated Ethenes 15

Figure 11. Molar concentrations of trichloroethene (TCE) with time for alluvial wells in the southern part of Air Force Plant 4 (AFP4) and

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas.

Subarea location of alluvial aquifer wells from which graphed constituent data obtained. MOLAR CONCENTRATION OF TCE

1995 1996 1997 1998 1999 2000 2001 2002 2003

DATE

0

0.5x10-5

1x10-5

1.5x10-5

2x10-5

2.5x10-5

3x10-5

3.5x10-5

HM–123

HM–126

LF05–19

WP07–10B

WSAICTA010

EXPLANATION

0 0.3 0.6 MILE 0.15

HM–126

HM–123

WP07–10B LF05–19

WSAICTA010

EXPLANATION

General direction

of ground-water

flow, 1995

Well completed

in the alluvial

aquifer and well

number

HM–123

97 ̊26'30" 97 ̊26' 97 ̊25'30" 97 ̊25'

32 ̊46'

32 ̊45'30"

Subarea shown

Figure 1 border
16 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Figure 12. Molar concentrations of tetrachloroethene (PCE) with time for alluvial wells in the southern part of Air Force Plant 4 (AFP4) 

and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas.

Subarea location of alluvial aquifer wells from which graphed constituent data obtained.

HM–123

HM–126

LF05–19

WP07–10B

WSAICTA010

EXPLANATION

MOLAR CONCENTRATION OF PCE

1995 1996 1997 1998 1999 2000 2001 2002 2003

DATE

0

10x10-8

8x10-8

6x10-8

4x10-8

2x10-8

0 0.3 0.6 MILE 0.15

HM-126

HM-123

WP07-10B LF05-19

WSAICTA010

EXPLANATION

General direction

of ground-water

flow, 1995

Well completed

in the alluvial

aquifer and well

number

HM–123

97 ̊26'30" 97 ̊26' 97 ̊25'30" 97 ̊25'

32 ̊46'

32 ̊45'30"

Subarea shown

Figure 1 border
Subsurface Occurrence of Chlorinated Ethenes 17

Figure 13. Molar concentrations of total 1,2-dichloroethene (total DCE) with time for alluvial wells in the southern part of Air Force Plant 

4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas.

Subarea location of alluvial aquifer wells from which graphed constituent data obtained.

HM–123

HM–126

LF05–19

WP07–10B

WSAICTA010

EXPLANATION

MOLAR CONCENTRATION OF TOTAL DCE

1995 1996 1997 1998 1999 2000 2001 2002 2003

DATE

0

2x10-6

4x10-6

6x10-6

8x10-6

10x10-6

0 0.3 0.6 MILE 0.15

HM-126

HM-123

WP07-10B LF05-19

WSAICTA010

EXPLANATION

General direction

of ground-water

flow, 1995

Well completed

in the alluvial

aquifer and well

number

HM–123

97 ̊26'30" 97 ̊26' 97 ̊25'30" 97 ̊25'

32 ̊46'

32 ̊45'30"

Subarea shown

Figure 1 border
Figure 14. Maximum historical concentration ratios of tetrachloroethene (PCE) to trichloroethene (TCE) in the alluvial aquifer, Air Force Plant 4 (AFP4

Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003.

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

EXPLANAT

Apof Apof AFboGegrWaqyeanfo00.0.2–20

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

W–147(2003) 0.79

HM–64(1993) 31

HM–59(1984) 40

HM–56(1985) 0.79

FT09–12B

(2001)

0.45 

WITCTA034(2000)1.6

WHGLTA066

(2001)

1.6 

WHGLTA054

(2001)

0.57 

WSAICTA023(2001) 2.7

WSAICTA015(2001) 7.1

GMI–22–03M(1994) 0.70

HM–119(2002) 0.10

HM–118(2002) 0.03

WHGLTA072(2003) 0.02

CAR–RW8(1999) 0.02

GMI–22–06M

(1994)

 0.01

WITCTA015

(2001)

0.05

WP07–10B(1999)0.008

FT09–12E(2001)0.13 WHGLTA065

W–155

Base from U.S. Air Force, Aeronautical Systems Center
Potential Source Areas of Chlorinated Ethenes 19

respectively. In the northeastern part of NAS–JRB, ratios 

increase by an order of magnitude from 0.05 (upgradient well 

WITCTA015) to 0.70 at well GMI–22–03M and by three orders 

of magnitude from 0.01 (upgradient well GMI–22–06M) to 

2.7 and 7.1 at wells WSAICTA023 and WSAICTA015, respectively. In the south-central part of NAS–JRB, ratios of 

PCE to TCE in wells appear less clearly related to potential 

downgradient flow paths than those in some other locations; 

however, a series of four closely spaced wells (WHGLTA066, 

WHGLTA054, FT09–12B, and FT09–12E) show ratios of 0.13 

to 1.6 immediately downgradient from well WHGLTA065, 

which shows a ratio of zero.

Maximum historical ratios of TCE to total DCE (fig. 15) 

show a wide range in ratios in the areas coincident with the 

northern and southern lobes of the TCE plume. In the area 

of the northern lobe, the largest increases in TCE to total 

DCE ratios relative to ratios at upgradient wells occur at wells 

WCHMHTA006 and WCHMHTA010, with increases from 17 

to 240 or from 17 to 260, respectively. In the area of the southern lobe, the largest ratio increases with respect to those at 

upgradient wells occur at wells WSAICTA010 and LF05–19. 

Ratios increased from 22 and 24 to 130 at well WSAICTA010 

and from 0 and 7.2 to 71 at well LF05–19. A notable increase 

with respect to ratios at upgradient wells occurs at well 

WP07–10B, where the ratio increases from less than 8.0 at several upgradient wells to 31. West of the ground-water divide, 

large TCE to total DCE ratios are evident at well HM–17 near 

Building 12 and at well HM–29 near Buildings 4 and 5, 

although no ratio data are available upgradient from well 

HM–17. 

The map of maximum historical ratios of trans-DCE to 

cis-DCE (fig. 16) shows ratios of 1 or more, which according to 

Byl and Williams (2000), can indicate that trans-DCE likely 

was released as a solvent and does not occur only as a result of 

degradation of TCE. The largest ratios occur in the area coincident with the southern lobe of the TCE plume at one well just 

east of the east parking lot (4.0 at well HM–113) and two wells 

farther downgradient (9.8 at well WHGLTA069 and 15 at well 

WP07–10B). In the area coincident with the northern lobe of the 

TCE plume, the largest trans-DCE to cis-DCE ratios were at 

wells WITCTA012 (6.1) and WHGLTA063 (2.0). 

Potential Source Areas of Chlorinated 

Ethenes

Potential source areas of chlorinated ethenes were identified by assessing concentrations of TCE, PCE, cis-DCE, and 

trans-DCE, and ratios of concentrations—PCE to TCE, TCE to 

total DCE, and trans-DCE to cis-DCE. High concentrations of 

these compounds, abrupt increases in ratios of PCE to TCE and 

TCE to total DCE relative to ratios at upgradient wells, and 

ratios of trans-DCE to cis-DCE greater than 1 were used to 

identify 16 potential source areas (fig. 17). The evidence for 

some of the potential source areas is stronger than for others, but 

each area reflects one or more of the conditions indicative of 

chlorinated ethenes entering the aquifer. 

Potential source area 1, Building 181, is evident from the 

zone of high concentrations of TCE there (fig. 4). The highest 

historical TCE concentration in the study area, 920,000 μg/L, is 

in the area. Concentrations of trans-DCE in that area also are 

among the highest in the study area (fig. 7). Because the Building 181 potential source area is on the ground-water divide 

marking the origination of ground-water flow away from the 

area, that potential source area likely is contributing the bulk of 

the chlorinated ethenes that flow downgradient to the east parking lot. 

Potential source area 2, between Buildings 4 and 5, primarily is identified by notably high PCE concentrations (as much 

as 920 μg/L) near and downgradient (both east and west) from 

its site on the ground-water divide (fig. 5). Although no immediately upgradient wells are available to provide comparison 

data, large ratios of PCE to TCE (40 at well HM–59 and 31 at 

well HM–64) (fig. 14) indicate a potential source of PCE. It is a 

potential source also for TCE on the basis of the presence of relatively high TCE concentrations (1,000 to 10,000 μg/L) at the 

apparent point of origin of the northern and central lobes of the 

TCE plume (fig. 4). An environmental baseline survey conducted by Earth Tech, Inc. (1997) indicates that two TCE spills 

occurred at the north process control laboratory (fig. 1), and soil 

samples collected by Earth Tech, Inc. (2003) indicate a historical source area at the ground-water divide. 

Potential source area 3 is between the ground-water divide 

and well HM–118, based on TCE concentrations in the 50-to500-μg/L range (fig. 4) and a ratio of TCE to total DCE concentrations of 44 at well HM–118, relative to a zero ratio upgradient (fig. 15). This potential source area is tenuous, as the evidence for its specific location is not strong. Data upgradient 

from well HM–118 are available from only one alluvial aquifer 

well sampled along the generalized ground-water flow path 

between well HM–118 and the ground-water divide. 

Potential source area 4 is downgradient from potential 

source area 3 in the area coincident with the northern 

lobe of the TCE plume immediately upgradient from well 

WCHMHTA010. The potential source area is identified from 

one of the highest TCE concentrations in the northern lobe 

(500-to-1,000-μg/L range) (fig. 4).

Potential source area 5 is in the area coincident with the 

northern lobe of the TCE plume immediately upgradient from 

wells WCHMHTA009, WCHMHTA011, and WITCTA004. 

The evidence for this area is TCE concentrations in the 50-to500-μg/L range (fig. 4) and abrupt increases in ratios of TCE to 

total DCE concentrations from zero at upgradient wells to 53 at 

well WCHMHTA009, 41 at well WCHMHTA011, and 21 at 

well WITCTA004 (fig. 15). 

Potential source area 6 is just upgradient from well 

WITCTA012. The largest ratio of trans-DCE to cis-DCE in the 

northeastern part of the study area (6.1) is at well WITCTA012 

(fig. 16), indicating the presence of trans-DCE likely could 

have resulted from the release of the compound rather than degradation of TCE. 
Figure 15. Maximum historical concentration ratios of trichloroethene (TCE) to total 1,2-dichloroethene (total DCE) in the alluvial aquifer, Air Force P

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003.

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

HM–71

(1993)

20 

HM–17

(1995)

66 F–218

(1995)26

HM–96(2003) 81

HM–88

(2001)

26 

HM–29(2003) 170

HM–118

(1992)

44 

LF05–19(1999) 71

WP07–10B

(2003)

31 

WITCTA009(2001) 9.3

WCHMHTA009

(2000)

53 

WUSGSTA011

(2003)

21 

WSAICTA010

(2003)

130 

WCHMHTA011(2001) 41

WCHMHTA010(2003) 260

WCHMHTA006(2003) 240

W–130

(1993)

7.5 

F–209(2002) 1.1

WUSGSTA005(1998) 8.2

WCHMHTA008(2000) 10

HM–116(2003) 17

WSAICTA004

(2000)

22 

HM–126(1995) 24

CAR–RW9

(1999)

7.2

WITCTA004(2003)21

HM–91(1993) 22

HM–97

(1993)

20 

WITCTA003(2002) HM–119 0

(2003)0 

HM–120

(2003)

0 

WITCTA001(1997)0

WITCTA002

(1997)

0

WCHMHTA014

(2002)

0 EXPLANAT

Apof Apof AFboGegrWaqyeanfo00.1–8–70

Base from U.S. Air Force, Aeronautical Systems Center
Figure 16. Maximum historical concentration ratios of trans-1,2-dichloroethene (trans-DCE) to cis-1,2-dichloroethene (cis-DCE) in the alluvial aquife

and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003. Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

WJETA528

(2002)

1.9 

WUSGSTA006(1998) 2.1

WITCTA010(2000) 1.0

WITCTA012(2003) 6.1

SPOT35–8

(2000)

1.2 

WHGLTA063(2001) 2.0

WHGLTA014(2000) 1.3

WITCTA016

(1999)

1.2 

GMI–22–06M

(1994)

1.8 

GMI–22–03M(1995) 1.8

HM–96(2003) 1.3

VEP–26

(2003)

6.7 

HM–113(1996) 4.0

LF04–02(2003) 1.1

WP07–10B

WHGLTA069(2003) 9.8

WHGLTA054

(2002)

1.7 

 (2003)

 15 

EXPLANATI

Appof lAppof lAFbouGegroWeaquyeaand for 00.01–22–77–1
Figure 17. Potential source areas of chlorinated ethenes, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–JR

Texas.

Farmers Branch Creek

LAKE WORTH

Woods Inlet

West Fork Trinity River

Base from U.S. Air Force, Aeronautical Systems Center

0 0.25 0.5 MILE

97o 97 25' o 97 26' o27' 97o 97 25'30" o 97 26'30" o27'30"

32o46'

32o47'

32o46'30"

32o45'30"

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

!

!

!

!

!

!

!

! !

!

!

!

!

!

!

!

!(

6

5

2

13

11

10

8

1

16

15

14

7

LF05–19 12

9

WUSGSTA005

WCHMHTA010 4

3

WSAICTA010

WCHMHTA011

WITCTA004

WSAICTA023

WSAICTA015

W–130

HM–113

F–220

HM–118

WCHMHTA009

WITCTA012

GMI–22–03M

WHGLTA054

WP07–10B

EXPL

!

HM–11

G

7
Summary 23

Potential source area 7 is southeast of potential source area 

6 and upgradient from wells WSAICTA023, WSAICTA015, 

and GMI–22–03M. There are abrupt increases in ratios 

of PCE to TCE concentrations from negligible at nearby 

upgradient wells to 2.7 at well WSAICTA023 and 7.1 at well 

WSAICTA015, and from 0.05 immediately upgradient from 

well GMI–22–03M to 0.70 at the well (fig. 14).

Potential source area 8 is just east of the east parking lot. It 

is identified by a relatively large concentration of trans-DCE (in 

the 50-to-500-μg/L range) (fig. 7) and a large ratio of transDCE to cis-DCE (4.0) in well HM-113 (fig. 16). 

Potential source area 9 is upgradient from well 

WUSGSTA005. It is identified by an increased TCE to total 

DCE ratio at well WUSGSTA005 (8.2) compared with those at 

nearby upgradient wells (less than 8) (fig. 15) and a trans-DCE 

to cis-DCE ratio greater than 1 (2.1) at well WUSGSTA006 

(fig. 16). 

Potential source area 10 is immediately upgradient from 

well WSAICTA010 in the south-central part of the area coincident with the southern lobe of the TCE plume. Primary evidence for this potential source area is the large increase in ratio 

of TCE to total DCE concentrations at well WSAICTA010 to 

130 from ratios in the 22-to-24 range at nearby upgradient wells 

(fig. 15). Also, TCE concentrations increase about an order of 

magnitude (from the 500–1,000- to the 1,000–10,000-μg/L 

range) at several wells in a downgradient direction (fig. 4), 

beginning at well WSAICTA010. 

Potential source area 11 is in the south-central part of the 

study area immediately upgradient from well WP07–10B. Primary evidence for this potential source is the presence of PCE 

at well WP07–10B, which is uncommon in the general area 

(fig. 5), and the relatively large increase in PCE concentrations 

at the well in 1997 and 1999 (fig. 12). Also, the ratio of transDCE to cis-DCE concentrations at the well is 15 (fig. 16), well 

above the threshold of 1 for likely solvent release. 

Potential source area 12 is east-southeast of potential 

source area 11 just upgradient from well LF05–19. Primary evidence for this area is an order-of-magnitude or more increase in 

the ratio of TCE to total DCE at well LF05–19 from ratios at 

nearby upgradient wells (7.2 or less to 71) (fig. 15). The ratio 

data are from 1999; graphs of TCE and total DCE concentrations over time (figs. 11, 13, respectively) show sharp increases 

in concentration of both compounds in 1997.

 Potential source area 13 is south-southwest of potential 

source areas 11 and 12, upgradient from well WHGLTA054. It 

is identified by the presence of PCE at that well in a part of the 

study area where PCE detections are uncommon (fig. 5). Additionally, there are abrupt increases in ratios of PCE to TCE concentrations (from less than 0.05 to 0.5–2) at well WHGLTA054 

and several other wells very close to that well compared with 

ratios at wells immediately upgradient (fig. 14). 

Potential source area 14 is immediately west of Building 

12 and appears to be on or very close to the ground-water 

divide. Evidence for this area primarily is the notably high TCE 

concentrations (for example, 160,000 μg/L at well F–220) that 

appear to originate in the area. The area encompasses the most 

upgradient part of the southern lobe of the TCE plume (fig. 4). 

Not surprisingly, slightly downgradient from well F–220 at well 

HM–17 (fig. 15), the ratio of TCE to total DCE concentrations 

is large (66).

The remaining two potential source areas are west of the 

ground-water divide. Potential source area 15 is at landfills 1 

and (primarily) 3. Primary evidence is the magnitudes of TCE 

concentrations (for example, two in the 100,000-to-920,000-

μg/L range) (fig. 4), cis-DCE concentrations (several in the 

5,000-to-710,000-μg/L range) (fig. 6), and trans-DCE concentrations (several in the 500-to-1,700-μg/L range) (fig. 7). The 

ratio of trans-DCE to cis-DCE at well VEP–26 in landfill 3 

(6.7) (fig. 16) is well above the threshold that indicates likely 

solvent release as opposed to TCE degradation alone. A groundwater study by Earth Tech, Inc. (2004), indicates that DNAPL 

is present near the base of the alluvial aquifer between landfills 

1 and 3. 

Potential source area 16 is in the northwestern part of the 

study area near Woods Inlet. The map of TCE concentrations 

(fig. 4) shows the presence of TCE in several wells in this 

isolated area. Although at relatively low concentrations (5 to 

50 μg/L), the presence of TCE away from the main plume indicates a local source. 

Summary

The manufacture of aircraft and related parts at U.S. Air 

Force Plant 4 (AFP4) and adjacent Naval Air Station-Joint 

Reserve Base Carswell Field (NAS–JRB) at Fort Worth, Tex., 

since 1942 has involved the use of various toxic chemicals. 

Some of these chemicals, primarily volatile organic compounds, have been detected in high concentrations in the alluvial aquifer, the aquifer immediately beneath land surface at the 

3,600-acre site (study area). The USGS, in cooperation with the 

U.S. Air Force Aeronautical Systems Center, Environmental 

Management Directorate, conducted a study during 2003–05 to 

characterize the subsurface occurrence and identify potential 

source areas of the volatile organic compounds classified as 

chlorinated ethenes. The solubilized chlorinated ethenes 

detected in the alluvial aquifer originated as either released solvents (trichloroethene [TCE], tetrachloroethene [PCE], and 

trans-1,2-dichloroethene [trans-DCE]) or degradation products 

of the released solvents (TCE, cis-1,2-dichloroethene [cisDCE], and trans-DCE). Concentrations of these compounds 

and selected ratios of compound concentrations were assessed 

with regard to magnitude and location within generalized flow 

paths to identify the subsurface occurrence and potential source 

areas of chlorinated ethenes in the study area.

A water-level-altitude map developed from 1995 data was 

used to indicate directions of ground-water flow in the alluvial 

aquifer. The combined influences of topographic- and bedrocksurface configurations result in a water table that generally 

slopes away from a ground-water divide approximately coincident with bedrock highs and the 1-mile-long aircraft assembly 
24 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

building at AFP4. Thus, east of the assembly building, ground 

water generally flows west to east toward the West Fork Trinity 

River or Farmers Branch Creek; west of the assembly building, 

ground water flows east to west toward Meandering Road 

Creek and Woods Inlet. 

Data obtained from more than a decade of ground-waterquality sampling at AFP4 and NAS–JRB, primarily by consultants to the Air Force, were used to map the maximum historical 

concentrations of chlorinated ethene compounds and ratios 

of maximum historical concentrations in the alluvial aquifer. 

The greater part of the plume of maximum historical TCE concentrations extends eastward from the assembly building to 

near the West Fork Trinity River. That part of the TCE plume 

contains three principal lobes (northern, central, and southern) 

that extend west to east in the general directions of groundwater flow. A smaller part of the TCE plume extends westward 

from the assembly building. Highest TCE concentrations 

(10,000 to 920,000 μg/L) occur near Building 181, west of 

Building 12, and at landfill 3. Highest PCE concentrations (500 

to 920 μg/L) occur near Buildings 4 and 5. Concentrations 

decrease with eastward migration, and the areal extent of the 

PCE plume is considerably less than that of the TCE plume. 

Highest cis-DCE concentrations (5,000 to 710,000 μg/L) occur 

at landfill 3. Concentrations of 1,000 to 5,000 μg/L occur along 

the southeastern part of the assembly building, the northern corner of the east parking lot, and in an area coincident with the 

southern lobe of the TCE plume. Highest trans-DCE concentrations (1,000 to 1,700 μg/L) occur just south of Building 181 and 

at landfill 3. 

Ratios of parent-compound to daughter-product concentrations that increase in relatively short distances (10s to 100s 

of feet) along downgradient ground-water flow paths can indicate a contributing source in the vicinity of the increase. In 

places in the north-central, northeastern, and south-central parts 

of NAS–JRB, PCE to TCE ratios increase in relatively short 

distances along generalized flow paths. Largest increases are 

three orders of magnitude from 0.01 to 2.7 and 7.1 between 

wells in the northeastern part. Maximum historical ratios of 

TCE to total DCE show a wide range in ratios in the areas 

coincident with the northern and southern lobes of the TCE 

plume. In the area of the northern lobe, the largest increases in 

TCE to total DCE concentration ratios relative to ratios at 

upgradient wells are from 17 to 240 or from 17 to 260. In the 

area of the southern lobe, the largest ratio increases with respect 

to those at upgradient wells are from 22 and 24 to 130, and from 

0 and 7.2 to 71. The map of maximum historical ratios of transDCE to cis-DCE shows ratios greater than 1, which can indicate 

that trans-DCE likely was released as a solvent and does not 

occur only as a result of degradation of TCE. 

High concentrations of TCE, PCE, cis-DCE, and transDCE; abrupt increases in ratios of PCE to TCE and TCE to total 

DCE; and ratios of trans-DCE to cis-DCE greater than 1 were 

used to identify 16 potential source areas of chlorinated ethenes 

at NAS–JRB. The evidence for some of the potential source 

areas is stronger than for others, but each area reflects one or 

more of the conditions indicative of chlorinated ethenes entering the aquifer. Potential source areas supported by the strongest evidence are Building 181, between Buildings 4 and 5, just 

west of Building 12, and landfills 1 and 3. 

The highest historical TCE concentration in the study area, 

920,000 μg/L, is at Building 181. Concentrations of trans-DCE 

in that area also are among the highest in the study area. 

Because the Building 181 potential source area is on the 

ground-water divide marking the origination of ground-water 

flow away from the area, that potential source area likely is contributing the bulk of the chlorinated ethenes that flow downgradient to the east parking lot. 

The potential source area between Buildings 4 and 5 primarily is identified by notably high PCE concentrations (as 

much as 920 μg/L) near and downgradient (both east and west) 

from its site on the ground-water divide. Although no immediately upgradient wells are available to provide comparison data, 

large ratios of PCE to TCE, 40 and 31, indicate a potential 

source of PCE. It is a potential source also for TCE on the basis 

of the presence of relatively high TCE concentrations (1,000 to 

10,000 μg/L) at the apparent point of origin of the northern and 

central lobes of the TCE plume. 

Primary evidence for the potential source area just west of 

Building 12 is the notably high TCE concentrations (for example, 160,000 μg/L) that appear to originate in the area. The area 

encompasses the most upgradient part of the southern lobe of 

the TCE plume. 

Primary evidence for the potential source area at landfills 

1 and (primarily) 3 is the magnitudes of TCE concentrations 

(for example, two in the 100,000-to-920,000-μg/L range), 

cis-DCE concentrations (several in the 5,000-to-710,000-μg/L 

range), and trans-DCE concentrations (several in the 500-to1,700-μg/L range). The ratio of trans-DCE to cis-DCE at a 

well in landfill 3 (6.7) is well above the threshold that indicates 

likely solvent release as opposed to TCE degradation alone.

References

Byl, T.D., and Williams, S.D., 2000, Biodegradation of chlorinated ethenes at a karst site in Middle Tennessee: U.S. Geological Survey Water-Resources Investigations Report 

99–4285, 58 p. 

Chem-Nuclear Geotech, Inc., 1992, Preliminary assessment/

site inspection and remedial investigation report: Prepared 

for U.S. Air Force, Air Force Plant 4, Fort Worth, v. 1, 150 p. 

Earth Tech, Inc., 1997, Environmental baseline survey for Air 

Force Plant 4, Fort Worth, Texas: Prepared for U.S. Air 

Force, Aeronautical Systems Center, Environmental Management Directorate, Wright-Patterson Air Force Base, Ohio 

[variously paged]. 

Earth Tech, Inc., 2003, Northeast parking lot source area investigation at Air Force Plant 4, Fort Worth, Texas: Prepared 

for U.S. Air Force, Center for Environmental Excellence 

and Aeronautical Systems Center, San Antonio, Contract 

No. F41624–00–D–8023, 454 p. 
References 25

Earth Tech, Inc., 2004, Long-term monitoring report for the 

April 2004 sampling event at Air Force Plant 4: Prepared for 

U.S. Air Force, Aeronautical Systems Center, Environmental 

Management Directorate, Wright-Patterson Air Force Base, 

Ohio [variously paged]. 

Eberts, S.M., Harvey, G.J., Jones, S.A., and Beckman, S.W., 

2003, Multiple process assessment for a chlorinated-solvent 

plume, in McCutcheon, S.C., and Schnoor, J.L., eds., 

Phytoremediation—Transformation and control of contaminants: Hoboken, N.J., Wiley, p. 589–633. 

Environmental Science and Engineering, Inc., 1994, Characterization of trichloroethene plume, Air Force Plant 4 and 

Carswell Air Force Base, Fort Worth, Texas: Prepared for 

U.S. Army Corps of Engineers, Fort Worth District.

Geo-Marine, Inc., 1995, Ground-water survey and subsurface 

soil delineation hydrant fueling system Carswell Air Force 

Base, SE, Fort Worth, Texas—Phase I and II: Prepared for 

U.S. Army Corps of Engineers, Fort Worth District, Contract 

No. DACA63–93–D–0014, Modification to Delivery Order 

No. 055, 93 p. 

Griffin, B.M., Tiedje, J.M., and Löffler, F.E., 2004, Anaerobic 

microbial reductive dechlorination of tetrachloroethene to 

predominantly trans-1,2-dichloroethene: Environmental 

Science and Technology, v. 38, no. 16, p. 4,300–4,303. 

HydroGeoLogic, Inc., 2000, Final summary report, southern 

lobe trichloroethene ground-water plume delineation, 

NAS Fort Worth JRB, Texas: Prepared for Air Systems 

Command, Air Force Plant 4, Brooks AFB, Texas, Contract 

No. F41624–95–D–8005, 67 p. 

HydroGeoLogic, Inc., 2002, focused feasibility study of the 

southern lobe trichloroethene ground-water plume at former 

Carswell Air Force Base, Texas: Prepared for Air Force 

Center for Environmental Excellence, Brooks AFB, Tex., 

Aeronautical Systems Center, Wright Patterson Air Force 

Base, Ohio, and Air Force Base Closure Agency, Arlington, 

Va., Contract No. F41624–95–D–8005, 21 p. 

Jacobs Engineering Group, Inc., 1993, Installation Restoration 

Program (IRP) quarterly ground-water monitoring comprehensive sampling round letter report: Dallas, Tex., 91 p. 

Kuniansky, E.L., Jones, S.A., Brock, R.D., and Williams, M.D., 

1996, Hydrogeology at Air Force Plant 4 and vicinity and 

water-quality of the Paluxy aquifer, Fort Worth, Texas: U.S. 

Geological Survey Water-Resources Investigations Report 

96–4091, 41 p. 

Mercer, J.W., and Waddell, R.K., 1993, Contaminant transport 

in groundwater in Maidment, D.R., ed., Handbook of hydrology: New York, McGraw-Hill, chap. 16, p. 16.1–16.41. 

Murphy, B.L., and Morrison, R.D., eds., 2002, Introduction to 

environmental forensics: San Diego, Academic Press, 560 p. 

Ram, N., Leahy, M., Carey, E., and Cawley, J., 1999, Environmental sleuth at work: Environmental Science and Technology, v. 33, no. 21, p. 464–469. 

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Systems Center, Wright-Patterson Air Force Base, Ohio, 

Department of Energy Contract No. DE–AC04–861D12584, 

GJPO–WMP–75, 545 p. 

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Department of Energy Contract No. DE–AC04–861D12584, 

GJPO–WMP–76, 34 pls. 

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Aeronautical Systems Center, Wright-Patterson Air Force 

Base, Ohio, Department of Energy Contract No. 

DE–AC04–861D12584, GJPO–WMP–86, 413 p. 

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appendix A–D, V. II: Prepared for U.S. Air Force, Headquarters Aeronautical Systems Center, Wright-Patterson 

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182 p. 

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Field, Fort Worth, Texas: U.S. Geological Survey Scientific 

Investigations Report 2004–5062, 77 p. 

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October 1986: Fort Worth, 28 p., 8 pls. 
Blank Page
Subsurface Occurrence 

and Potential Source 

Areas of Chlorinated 

Ethenes, AFP4 and NAS–

JRB, Fort Worth, Texas

Appendix—Alluvial Aquifer Data Pertinent to 

This Report, Air Force Plant 4 and Naval Air 

Station-Joint Reserve Base Carswell Field, 

Fort Worth, Texas
Blank Page
Table A1 29

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source

1–A 6964505.00 2300900.00 02/06/85 1 Radian Corporation

1–B 6964685.00 2301062.00 10/15/97 0 HydroGeoLogic, Inc.

1–C 6964450.00 2301255.00 03/05/85 1 Radian Corporation

5–B 6962558.83 2295444.82 03/05/85 39 Radian Corporation

BGSMW01 6964916.00 2299511.00 04/09/97 0 International Technology Corp.

BSS–A 6965476.60 2300120.78 01/10/96 0 Law Environmental

BSS–B 6965797.63 2300091.88 01/15/96 0 Law Environmental

CAR–RW1 6960869.00 2296755.00 11/05/99 3,100 HydroGeoLogic, Inc.

CAR–RW10 6961279.06 2296078.88 11/05/99 3,200 HydroGeoLogic, Inc.

CAR–RW11 6961412.39 2296075.74 11/05/99 3,000 HydroGeoLogic, Inc.

CAR–RW12 6961192.46 2295933.72 11/05/99 3,500 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 11/05/99 3,000 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 11/05/99 3,400 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 11/05/99 1,500 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 11/05/99 3,400 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 11/05/99 4,600 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 11/05/99 3,300 HydroGeoLogic, Inc.

F–204 6965223.00 2290634.70 11/10/95 0 Jacobs Engineering Group

F–209 6969007.27 2290901.72 05/05/02 2.3 Earth Tech Corporation

F–214 6966040.04 2289864.00 10/24/02 210,000 Earth Tech Corporation

F–216 6965776.18 2290219.93 10/08/95 20 Jacobs Engineering Group

F–217 6965959.98 2290109.05 01/27/00 170 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.29 2291474.21 11/02/94 77,000 Jacobs Engineering Group

F–219 6964343.31 2291472.82 10/30/95 56 Jacobs Engineering Group

F–220 6964050.32 2290236.60 11/13/95 160,000 Jacobs Engineering Group

F–221 6963244.60 2290575.22 10/27/95 0 Jacobs Engineering Group

FSA–3–03 6969021.17 2290678.81 11/10/95 0 Jacobs Engineering Group

FSA–3–04 6969021.23 2290632.44 11/10/95 0 Jacobs Engineering Group

FSA–3–06 6969077.00 2290679.76 11/16/95 0 Jacobs Engineering Group

FSA–3–08 6969116.51 2290712.86 11/14/95 9.8 Jacobs Engineering Group

FSA–3–10 6969075.75 2290779.47 11/14/95 21 Jacobs Engineering Group

FSA–3–12 6968999.05 2290836.80 11/13/95 17 Jacobs Engineering Group

FT08–11A 6962321.00 2295878.00 10/19/95 6 Law Environmental

FT08–11B 6962034.00 2295931.00 04/12/95 150 Law Environmental

FT09–12A 6960549.82 2295439.22 12/05/01 0 HydroGeoLogic, Inc.

FT09–12B 6960709.31 2295697.41 02/21/01 100 HydroGeoLogic, Inc.

FT09–12C 6960590.30 2295771.51 10/28/97 5 HydroGeoLogic, Inc.

FT09–12E 6960701.08 2295821.16 06/19/02 24 HydroGeoLogic, Inc.

GMI–02M 6964661.03 2288826.22 10/06/95 0 Jacobs Engineering Group

GMI–04–01M 6960931.00 2296729.00 07/14/97 1,400 HydroGeoLogic, Inc.

GMI–05M 6964307.19 2288362.92 10/05/95 0 Jacobs Engineering Group

GMI–22–01M 6965122.22 2297689.15 07/16/95 14 Law Environmental

GMI–22–02M 6966633.00 2296187.00 05/01/03 0 Earth Tech Corporation

GMI–22–03M 6966219.92 2298539.37 12/03/01 140 HydroGeoLogic, Inc.

GMI–22–04M 6967250.52 2297341.00 04/30/97 956 CH2M Hill

GMI–22–05M 6966940.33 2299432.08 05/01/03 0 Earth Tech Corporation

GMI–22–06M 6967004.48 2298186.58 05/23/94 660 Geo-Marine, Inc.

GMI–22–07M 6969019.00 2298323.00 05/01/03 0 Earth Tech Corporation

GMI–22–08M 6970324.00 2298972.00 01/11/96 0 Law Environmental

HM–10 6965810.91 2290121.80 04/29/95 38 Jacobs Engineering Group

Table A1

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
30 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

HM–101 6964442.18 2288886.61 04/18/86 0 Jacobs Engineering Group

HM–104 6963114.28 2291200.56 01/19/96 0 Jacobs Engineering Group

HM–106 6968075.70 2290771.26 10/24/95 0 Jacobs Engineering Group

HM–11 6963091.76 2290932.28 10/17/00 6,900 U.S. Air Force, Center for Environmental Excellence

HM–110 6963667.53 2293163.24 10/13/99 560 HydroGeoLogic, Inc.

HM–111 6963624.05 2293266.53 10/10/95 19 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 10/12/95 14,000 Jacobs Engineering Group

HM–113 6964677.00 2293133.60 01/20/96 640 Jacobs Engineering Group

HM–114 6963912.10 2294352.00 04/10/01 560 HydroGeoLogic, Inc.

HM–116 6966411.43 2294283.69 04/20/99 650 HydroGeoLogic, Inc.

HM–118 6968035.19 2294780.47 10/14/02 180 Ellis Environmental Group

HM–119 6968726.00 2294271.80 11/01/94 38 Jacobs Engineering Group

HM–12 6963088.53 2290396.72 02/14/86 .23 Radian Corporation

HM–120 6969489.04 2295343.23 05/01/03 0 Earth Tech Corporation

HM–121 6967390.20 2295279.20 11/07/95 520 Jacobs Engineering Group

HM–123 6961638.50 2295272.60 07/13/99 4,300 HydroGeoLogic, Inc.

HM–124 6963957.77 2295223.26 11/14/95 2.2 Jacobs Engineering Group

HM–126 6963121.05 2294300.23 11/14/95 3,100 Jacobs Engineering Group

HM–127 6961588.47 2294853.29 11/14/95 1.3 Jacobs Engineering Group

HM–13 6963100.15 2289898.00 10/25/95 0 Jacobs Engineering Group

HM–14 6963093.00 2289243.30 11/01/95 0 Jacobs Engineering Group

HM–16 6964155.13 2290241.53 02/11/86 10,290 Radian Corporation

HM–17 6963993.31 2290451.65 02/11/86 15,274 Radian Corporation

HM–23 6963113.58 2288752.31 04/05/86 0 Radian Corporation

HM–29 6966014.89 2290711.88 02/21/86 5,585 Radian Corporation

HM–31 6963114.44 2291505.33 04/28/99 580 Jacobs Engineering Group

HM–36 6965484.00 2289786.00 10/16/00 38 U.S. Air Force, Center for Environmental Excellence

HM–56 6965454.00 2291472.23 03/20/85 680 Hargis + Associates

HM–59 6966811.00 2291469.61 12/12/84 60 Hargis + Associates

HM–64 6966406.97 2291114.57 08/03/84 390 Hargis + Associates

HM–7 6966159.99 2290135.86 01/27/00 0 U.S. Air Force, Center for Environmental Excellence

HM–71 6966470.35 2292457.39 03/20/85 2,500 Hargis + Associates

HM–88 6964479.91 2291919.17 11/07/98 13,500 Jacobs Engineering Group

HM–89 6964470.44 2292084.17 09/13/00 1,000 U.S. Air Force, Center for Environmental Excellence

HM–90 6965640.09 2292457.85 05/21/93 5.9 Jacobs Engineering Group

HM–91 6966174.30 2292586.29 06/04/93 450 Jacobs Engineering Group

HM–92 6965645.68 2292250.42 10/28/95 1.6 Jacobs Engineering Group

HM–93 6965074.75 2292194.39 04/24/97 38 Jacobs Engineering Group

HM–95 6965442.59 2293156.22 05/01/03 6,724 Earth Tech Corporation

HM–96 6966507.03 2293168.95 01/15/03 230 Earth Tech Corporation

HM–97 6966884.14 2293158.51 05/26/93 330 Jacobs Engineering Group

HM–98 6967418.95 2293207.55 10/17/00 1 U.S. Air Force, Center for Environmental Excellence

ITMW–01T 6961062.05 2298967.00 10/24/00 22 HydroGeoLogic, Inc.

LF01–1D 6964288.00 2301413.00 10/14/98 0 HydroGeoLogic, Inc.

LF01–1E 6964606.00 2301174.00 10/20/97 0 HydroGeoLogic, Inc.

LF03–3D 6962056.65 2293269.12 05/01/03 0 Earth Tech Corporation

LF04–01 6961026.99 2295378.56 12/06/01 0 HydroGeoLogic, Inc.

LF04–02 6961113.06 2296309.10 01/25/99 3,300 HydroGeoLogic, Inc.

LF04–03 6961064.00 2296306.00 11/05/99 3,100 HydroGeoLogic, Inc.

LF04–04 6960941.63 2297165.64 01/13/96 0 Law Environmental

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A1 31

LF04–10 6960411.83 2297078.91 04/23/97 2 CH2M Hill

LF04–4C 6960600.00 2296588.00 10/06/99 10 HydroGeoLogic, Inc.

LF04–4D 6960828.00 2296412.00 01/15/96 1,330 Law Environmental

LF05–01 6962728.35 2294577.83 06/19/02 62 Science Applications International Corp.

LF05–02 6962653.12 2295278.95 10/28/97 210 HydroGeoLogic, Inc.

LF05–18 6961555.64 2297075.43 04/24/97 1,150 CH2M Hill

LF05–19 6961239.89 2297461.35 04/23/97 1,710 CH2M Hill

LF05–5B 6961901.56 2296078.25 10/16/02 1 Ellis Environmental Group

LF05–5C 6961720.05 2295993.73 01/15/96 939 Law Environmental

LF05–5D 6961739.00 2295754.00 01/14/96 1,110 Law Environmental

LF05–5G 6961558.00 2296690.00 04/23/97 1,240 CH2M Hill

LF05–5H 6961732.39 2296340.79 06/20/02 68 HydroGeoLogic, Inc.

LSA1628–1 6967936.00 2297802.00 10/20/95 0 Law Environmental

LSA1628–2 6967943.00 2297847.00 01/15/96 59 Law Environmental

LSA1628–3 6967993.10 2297791.30 04/28/97 790 CH2M Hill

MW–10 6965836.22 2300542.00 10/30/97 0 HydroGeoLogic, Inc.

MW–11 6965707.00 2300792.00 10/24/97 0 HydroGeoLogic, Inc.

MW–12 6966149.32 2300142.00 10/19/95 2 Law Environmental

MW–19 6963513.00 2295369.00 08/22/01 156 Science Applications International Corp.

MW–38 6965981.00 2298153.00 12/04/01 0 HydroGeoLogic, Inc.

MW–5 6963910.00 2290826.00 05/03/01 920,000 U.S. Air Force, Center for Environmental Excellence

MW–50 6968529.00 2295622.00 07/22/96 4 Jacobs Engineering Group

MW–53 6964378.00 2296200.00 07/24/96 370 Jacobs Engineering Group

MW–5C 6965804.00 2300139.00 04/10/97 0 International Technology Corp.

MW–7CRSWL 6965967.00 2300055.00 08/22/01 0 Science Applications International Corp.

MW–8 6965584.95 2300492.00 01/10/96 0 Law Environmental

MW–9 6966001.79 2300330.00 10/20/97 0 HydroGeoLogic, Inc.

MW–IT–01T 6961062.00 2298967.00 11/05/98 18.5 Jacobs Engineering Group

MWMTAC–001 6959116.00 2296520.00 12/12/96 0 Jacobs Engineering Group

OT–15C 6963316.00 2300948.00 07/16/95 3 Law Environmental

RW–11U 6965385.00 2292586.20 07/30/94 6,900 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 12,000 U.S. Air Force, Center for Environmental Excellence

RW–2U 6964643.00 2292424.50 01/20/93 12,000 U.S. Air Force, Center for Environmental Excellence

SD13–01 6963377.64 2300623.03 10/09/98 1 HydroGeoLogic, Inc.

SD13–02 6963472.80 2300754.49 10/27/00 0 HydroGeoLogic, Inc.

SD13–03 6963347.97 2300700.85 01/11/96 0 Law Environmental

SD13–04 6963346.39 2300773.06 10/31/00 0 HydroGeoLogic, Inc.

SD13–05 6963904.00 2300776.00 01/12/96 0 Law Environmental

SD13–06 6963164.35 2300908.00 06/26/01 0 HydroGeoLogic, Inc.

SD13–07 6963165.85 2301009.00 07/02/01 0 HydroGeoLogic, Inc.

SPOT35–2 6966175.00 2296854.00 01/29/97 1 CH2M Hill

SPOT35–3 6966109.00 2296851.00 12/03/01 0 HydroGeoLogic, Inc.

SPOT35–4 6966175.00 2296778.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–5 6966020.04 2296847.00 10/14/02 0 Ellis Environmental Group

SPOT35–8 6966428.55 2296970.16 04/07/00 25 HydroGeoLogic, Inc.

ST14–01 6963295.30 2300090.83 01/11/96 0 Law Environmental

ST14–02 6963511.64 2300091.66 01/13/96 0 Law Environmental

ST14–03 6964079.97 2299891.62 10/09/02 0 Ellis Environmental Group

ST14–04 6963642.65 2300345.31 01/13/96 0 Law Environmental

ST14–14 6964309.76 2299735.00 05/01/98 0 HydroGeoLogic, Inc.

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
32 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

ST14–24 6964018.00 2299061.45 10/12/99 0 HydroGeoLogic, Inc.

ST14–26 6964593.00 2299557.00 04/13/98 0 HydroGeoLogic, Inc.

ST14–27 6964258.00 2300212.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W05 6963726.00 2299094.00 10/10/02 0 Ellis Environmental Group

ST14–W06 6963807.00 2299331.00 01/11/96 0 Law Environmental

ST14–W07 6963615.00 2299394.00 01/12/96 0 Law Environmental

ST14–W08 6964324.00 2299480.00 01/12/96 0 Law Environmental

ST14–W09 6963472.00 2299550.00 10/18/95 6 Law Environmental

ST14–W11 6964129.00 2299658.00 10/27/00 0 HydroGeoLogic, Inc.

ST14–W13 6963695.00 2299776.00 01/11/96 0 Law Environmental

ST14–W15 6963316.00 2299923.00 05/01/03 0 Earth Tech Corporation

ST14–W16 6964065.00 2300128.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W21 6963418.00 2300242.00 07/12/95 4 Law Environmental

ST14–W31 6963550.00 2300831.00 10/12/99 0 HydroGeoLogic, Inc.

T8 6965421.00 2289949.00 01/14/02 0 U.S. Air Force, Center for Environmental Excellence

T9 6965551.00 2289993.00 11/19/01 2 U.S. Air Force, Center for Environmental Excellence

USGS01T 6970384.00 2297661.30 10/21/95 1 Law Environmental

USGS02T 6970326.56 2300333.85 12/09/96 0 Jacobs Engineering Group

USGS03T 6968704.70 2300610.01 10/20/95 6 Law Environmental

USGS04T 6968758.00 2299178.00 10/09/02 0 Ellis Environmental Group

USGS06T 6963763.00 2297542.08 01/24/98 90 Jacobs Engineering Group

USGS07T 6960168.00 2295246.00 10/11/02 0 Ellis Environmental Group

VEP–10 6965452.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 18 Earth Tech Corporation

VEP–12 6965492.14 2289740.47 05/08/02 260 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/08/02 270 Earth Tech Corporation

VEP–14 6965532.35 2289740.23 05/08/02 180 Earth Tech Corporation

VEP–15 6965572.27 2289739.27 05/09/02 60 Earth Tech Corporation

VEP–16 6965593.48 2289739.28 05/09/02 0 Earth Tech Corporation

VEP–17 6965612.88 2289738.95 05/09/02 45 Earth Tech Corporation

VEP–18 6965631.89 2289739.19 05/09/02 5.9 Earth Tech Corporation

VEP–18B 6965652.25 2289740.40 05/09/02 4.2 Earth Tech Corporation

VEP–19 6965673.36 2289738.41 05/09/02 19 Earth Tech Corporation

VEP–20 6965692.62 2289738.81 05/10/02 0 Earth Tech Corporation

VEP–21 6965885.28 2289766.47 05/11/02 9.4 Earth Tech Corporation

VEP–22 6965904.64 2289772.36 05/11/02 23 Earth Tech Corporation

VEP–23 6965923.82 2289776.40 05/11/02 20 Earth Tech Corporation

VEP–24 6965947.42 2289785.33 05/11/02 60 Earth Tech Corporation

VEP–25 6965961.57 2289792.04 05/11/02 85 Earth Tech Corporation

VEP–26 6965979.44 2289801.00 05/15/03 1,780 Shaw Environmental

VEP–27 6965996.42 2289811.11 05/12/02 0 Earth Tech Corporation

VEP–28 6966006.35 2289828.89 05/12/02 0 Earth Tech Corporation

VEP–29 6966014.37 2289844.00 05/15/03 0 Shaw Environmental

VEP–3 6966027.00 2289825.00 05/12/02 4.7 Earth Tech Corporation

VEP–31 6966040.69 2289879.41 05/13/02 4.9 Earth Tech Corporation

VEP–33 6966075.62 2289893.21 05/14/02 0 Earth Tech Corporation

VEP–35 6966114.00 2289901.00 05/14/02 4.3 Earth Tech Corporation

VEP–36 6966135.75 2289905.70 05/14/02 11 Earth Tech Corporation

VEP–37 6966155.08 2289906.66 05/14/02 170 Earth Tech Corporation

VEP–4 6966050.33 2289838.40 05/15/03 0 Shaw Environmental

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A1 33

VEP–40 6966096.49 2289877.53 05/13/02 0 Earth Tech Corporation

VEP–41 6966067.00 2289850.00 05/13/02 66 Earth Tech Corporation

VEP–5 6965352.65 2289735.96 05/07/02 0 Earth Tech Corporation

VEP–6 6965371.63 2289740.48 05/07/02 0 Earth Tech Corporation

VEP–7 6965393.00 2289742.00 05/07/02 0 Earth Tech Corporation

VEP–8 6965413.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–9 6965432.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 1.9 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 1.6 Earth Tech Corporation

W–129 6965935.87 2289777.80 05/12/93 58 Jacobs Engineering Group

W–130 6966042.89 2289868.15 06/14/93 490,000 Jacobs Engineering Group

W–131L 6963276.81 2290536.11 10/19/91 0 Chem-Nuclear Geotech, Inc.

W–131U 6963278.00 2290541.00 10/24/91 21 Chem-Nuclear Geotech, Inc.

W–132 6966136.51 2289895.52 05/12/93 0 Jacobs Engineering Group

W–133U 6963349.00 2290609.00 06/06/93 0 Jacobs Engineering Group

W–134 6969156.00 2291067.00 05/14/93 0 Jacobs Engineering Group

W–135 6967837.68 2290606.07 10/18/00 2 U.S. Air Force, Center for Environmental Excellence

W–137 6963499.00 2290968.00 05/07/93 200 Jacobs Engineering Group

W–141L 6965386.71 2290672.36 10/18/91 0 Chem-Nuclear Geotech, Inc.

W–141U 6965391.58 2290672.52 06/14/93 0 Jacobs Engineering Group

W–143 6968548.58 2291192.24 09/11/91 0 Chem-Nuclear Geotech, Inc.

W–144 6965577.00 2290450.00 09/17/91 45 Chem-Nuclear Geotech, Inc.

W–145 6964387.65 2290600.35 09/15/91 8 Chem-Nuclear Geotech, Inc.

W–146 6965118.51 2290620.30 05/09/93 6.3 Jacobs Engineering Group

W–147 6965824.00 2290711.00 01/15/03 .15 Earth Tech Corporation

W–149 6965190.70 2292456.97 10/17/91 21,000 Chem-Nuclear Geotech, Inc.

W–151 6964980.90 2292475.30 05/25/93 500 Jacobs Engineering Group

W–155 6968275.39 2293145.82 05/27/93 2.1 Jacobs Engineering Group

W–156 6964824.12 2292815.02 09/14/00 7,800 U.S. Air Force, Center for Environmental Excellence

W–158 6963954.83 2291080.82 06/06/93 16,000 Jacobs Engineering Group

W–160 6963448.68 2291368.51 01/24/97 553 Jacobs Engineering Group

WCHMHTA004 6967949.00 2295041.00 09/26/01 54 Science Applications International Corp.

WCHMHTA006 6966690.11 2295406.97 04/11/02 410 Ellis Environmental Group

WCHMHTA008 6967889.89 2295597.48 04/11/00 27 HydroGeoLogic, Inc.

WCHMHTA009 6968444.69 2296663.99 04/10/00 430 HydroGeoLogic, Inc.

WCHMHTA010 6967640.08 2296398.80 04/11/02 660 Ellis Environmental Group

WCHMHTA011 6969295.20 2297328.38 09/26/01 223 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 12 Earth Tech Corporation

WCHMHTA014 6970403.90 2294072.81 10/14/02 1 Ellis Environmental Group

WCOETA002 6962944.00 2296763.00 07/01/02 170 U.S. Geological Survey

WCOETA004 6962828.00 2296675.00 07/01/01 270 U.S. Geological Survey

WCOETA006 6962928.00 2296921.00 07/01/02 170 U.S. Geological Survey

WCOETA010 6962696.00 2296798.00 06/01/98 557 U.S. Geological Survey

WHGLFE001 6961575.00 2296063.00 06/19/02 700 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 1,100 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 3.3 HydroGeoLogic, Inc.

WHGLFE004 6960785.00 2295825.00 06/19/02 0 HydroGeoLogic, Inc.

WHGLRW015 6960871.43 2298662.64 07/28/99 46 HydroGeoLogic, Inc.

WHGLRW016 6961034.95 2299201.47 10/16/02 0 Ellis Environmental Group

WHGLRW017 6960727.11 2299000.59 04/19/02 0 Ellis Environmental Group

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
34 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WHGLRW018 6960532.93 2298744.63 11/01/99 0 HydroGeoLogic, Inc.

WHGLRW019 6960684.23 2298620.19 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA003 6961043.88 2298029.84 01/23/98 170 HydroGeoLogic, Inc.

WHGLTA004 6962943.38 2295760.62 10/08/98 1,400 HydroGeoLogic, Inc.

WHGLTA005 6963470.00 2301044.00 10/18/99 0 HydroGeoLogic, Inc.

WHGLTA007 6963162.51 2301093.11 10/18/99 1 HydroGeoLogic, Inc.

WHGLTA008 6963955.17 2300016.84 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA009 6965211.65 2297528.70 04/10/00 190 HydroGeoLogic, Inc.

WHGLTA010 6965580.03 2296770.93 04/07/00 16 HydroGeoLogic, Inc.

WHGLTA011 6968356.67 2295873.87 07/13/00 8 HydroGeoLogic, Inc.

WHGLTA012 6965920.84 2297740.00 10/10/02 0 Ellis Environmental Group

WHGLTA013 6965958.00 2297177.00 12/04/01 0 HydroGeoLogic, Inc.

WHGLTA014 6966295.34 2297373.92 10/27/00 36 HydroGeoLogic, Inc.

WHGLTA020 6962285.83 2299684.95 11/05/99 0 HydroGeoLogic, Inc.

WHGLTA022 6960401.65 2297691.54 11/03/99 0 HydroGeoLogic, Inc.

WHGLTA023 6960492.16 2298565.43 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA025 6961608.26 2298942.63 04/06/00 14 HydroGeoLogic, Inc.

WHGLTA028 6967761.00 2297451.00 04/17/02 360 Ellis Environmental Group

WHGLTA029 6965736.00 2298574.00 10/16/02 0 Ellis Environmental Group

WHGLTA034 6963889.66 2301060.21 10/16/00 0 HydroGeoLogic, Inc.

WHGLTA035 6963823.75 2301048.39 10/16/00 0 HydroGeoLogic, Inc.

WHGLTA043 6961771.99 2297021.32 10/16/02 630 Ellis Environmental Group

WHGLTA044 6961721.40 2297347.37 04/03/01 1 HydroGeoLogic, Inc.

WHGLTA045 6961321.90 2298368.80 10/20/00 22 HydroGeoLogic, Inc.

WHGLTA046 6961298.49 2296089.68 02/26/02 2,300 HydroGeoLogic, Inc.

WHGLTA048 6960916.20 2298714.83 10/26/00 35 HydroGeoLogic, Inc.

WHGLTA049 6962329.24 2299269.36 10/20/00 2 HydroGeoLogic, Inc.

WHGLTA050 6963013.36 2296420.09 06/15/01 260 HydroGeoLogic, Inc.

WHGLTA051 6962894.90 2296247.12 10/16/02 350 Ellis Environmental Group

WHGLTA052 6962769.45 2296098.07 06/26/01 570 HydroGeoLogic, Inc.

WHGLTA053 6960334.00 2295474.00 12/05/01 0 HydroGeoLogic, Inc.

WHGLTA054 6960748.26 2295541.09 02/20/01 93 HydroGeoLogic, Inc.

WHGLTA055 6960809.82 2295662.85 06/12/01 0 HydroGeoLogic, Inc.

WHGLTA056 6960787.36 2295827.62 04/06/01 68 HydroGeoLogic, Inc.

WHGLTA060 6965619.32 2298210.18 11/26/01 0 HydroGeoLogic, Inc.

WHGLTA061 6965621.74 2298341.01 11/27/01 0 HydroGeoLogic, Inc.

WHGLTA062 6965663.00 2298317.27 11/26/01 0 HydroGeoLogic, Inc.

WHGLTA063 6965677.07 2298270.14 11/27/01 0 HydroGeoLogic, Inc.

WHGLTA064 6965075.48 2298351.15 11/28/01 30 HydroGeoLogic, Inc.

WHGLTA065 6960593.00 2295633.00 12/06/01 5 HydroGeoLogic, Inc.

WHGLTA066 6960807.00 2295402.00 12/02/01 1 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 42 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 06/18/02 960 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 06/19/02 1,600 HydroGeoLogic, Inc.

WHGLTA071 6961285.00 2296067.00 06/18/02 14 HydroGeoLogic, Inc.

WHGLTA072 6961283.00 2296102.00 06/18/02 1,800 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 05/05/03 3,200 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 06/18/02 2,100 HydroGeoLogic, Inc.

WHGLTA075 6961072.00 2295934.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA076 6961086.00 2295934.00 06/17/02 1,700 HydroGeoLogic, Inc.

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A1 35

WHGLTA077 6960785.00 2295776.00 06/20/02 65 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 7 Ellis Environmental Group

WHGLTA101 6964634.00 2301220.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA102 6964449.00 2301388.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA103 6964314.53 2301522.24 06/02/99 0 HydroGeoLogic, Inc.

WHGLTA104 6964226.00 2301608.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA201 6963198.14 2298660.88 12/09/98 25 HydroGeoLogic, Inc.

WHGLTA202 6963326.21 2298832.59 12/14/98 16 HydroGeoLogic, Inc.

WHGLTA203 6963059.00 2298401.00 05/13/98 4 HydroGeoLogic, Inc.

WHGLTA204 6963625.62 2298104.66 09/23/98 58 HydroGeoLogic, Inc.

WHGLTA302 6962603.00 2294422.00 05/07/98 1,400 HydroGeoLogic, Inc.

WHGLTA303 6962351.00 2294401.00 05/08/98 880 HydroGeoLogic, Inc.

WHGLTA601 6962753.00 2297473.69 09/25/98 200 HydroGeoLogic, Inc.

WHGLTA602 6962752.66 2297625.01 09/25/98 170 HydroGeoLogic, Inc.

WHGLTA603 6962713.38 2297727.19 04/19/02 0 Ellis Environmental Group

WHGLTA604 6963195.00 2297530.00 09/24/98 160 HydroGeoLogic, Inc.

WHGLTA701 6961835.73 2295332.86 09/28/98 4,600 HydroGeoLogic, Inc.

WHGLTA702 6961920.00 2295882.00 05/20/98 19 HydroGeoLogic, Inc.

WHGLTA703 6961680.70 2295741.23 02/21/01 2,200 HydroGeoLogic, Inc.

WHGLTA704 6962141.07 2295831.51 05/19/98 13 HydroGeoLogic, Inc.

WHGLTA705 6962003.00 2296027.00 02/15/01 1 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 07/13/00 5 HydroGeoLogic, Inc.

WHGLTA707 6962188.16 2295592.35 02/19/01 1 HydroGeoLogic, Inc.

WHGLTA708 6962019.93 2295647.18 02/19/01 12 HydroGeoLogic, Inc.

WHGLTA709 6961934.71 2295750.93 02/19/01 110 HydroGeoLogic, Inc.

WHGLTA801 6962790.06 2295857.80 02/22/01 360 HydroGeoLogic, Inc.

WHGLTA901 6967832.00 2299643.00 07/21/99 4 HydroGeoLogic, Inc.

WHGLTA902 6967671.00 2299952.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA903 6967830.00 2300086.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA904 6968031.00 2300174.00 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA905 6967574.00 2299782.00 10/11/99 0 HydroGeoLogic, Inc.

WITCTA001 6969592.01 2296447.73 04/28/97 0 International Technology Corp.

WITCTA002 6969259.49 2296136.48 05/06/97 0 International Technology Corp.

WITCTA003 6969112.00 2297406.00 04/05/01 1 HydroGeoLogic, Inc.

WITCTA004 6968940.00 2297491.00 04/10/02 260 Ellis Environmental Group

WITCTA005 6968459.46 2298167.79 04/28/97 310 International Technology Corp.

WITCTA006 6968427.00 2298263.00 05/02/97 25 International Technology Corp.

WITCTA007 6968310.56 2298433.07 04/22/97 54 International Technology Corp.

WITCTA008 6967940.00 2298030.00 05/01/97 550 International Technology Corp.

WITCTA009 6967862.00 2298234.00 04/23/97 650 International Technology Corp.

WITCTA010 6967695.00 2298753.00 10/08/02 0 Ellis Environmental Group

WITCTA011 6967455.26 2297357.31 04/30/97 550 International Technology Corp.

WITCTA012 6967348.77 2298224.39 04/28/97 6 International Technology Corp.

WITCTA013 6967017.00 2297752.00 04/28/97 330 International Technology Corp.

WITCTA014 6966904.57 2297418.51 08/23/01 108 Science Applications International Corp.

WITCTA015 6966333.00 2298395.00 08/23/01 68 Science Applications International Corp.

WITCTA016 6966239.00 2298062.00 04/19/99 94 HydroGeoLogic, Inc.

WITCTA017 6967298.15 2299305.78 10/17/02 52 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 4 Ellis Environmental Group

WITCTA020 6963895.32 2296316.79 04/29/97 7 International Technology Corp.

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
36 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WITCTA022 6963651.00 2298744.00 04/29/97 2 International Technology Corp.

WITCTA024 6965971.78 2298956.02 10/09/02 0 Ellis Environmental Group

WITCTA025 6966005.00 2299534.00 04/09/02 100 Ellis Environmental Group

WITCTA026 6965458.00 2299481.00 04/19/02 2 Ellis Environmental Group

WITCTA028 6965161.00 2300621.00 04/24/97 0 International Technology Corp.

WITCTA031 6964690.00 2299152.00 05/01/97 0 International Technology Corp.

WITCTA032 6964501.67 2299196.64 04/30/97 0 International Technology Corp.

WITCTA033 6964388.00 2300520.00 04/30/97 0 International Technology Corp.

WITCTA034 6963956.68 2300951.49 10/17/00 2 HydroGeoLogic, Inc.

WITCTA035 6963388.12 2299094.68 05/01/97 0 International Technology Corp.

WITCTA036 6963182.00 2299629.00 05/02/97 0 International Technology Corp.

WITCTA037 6963424.00 2297784.00 04/29/97 58 International Technology Corp.

WITCTA039 6962339.77 2295415.41 05/01/97 39 International Technology Corp.

WITCTA040 6963260.00 2299515.00 04/05/01 58 HydroGeoLogic, Inc.

WITCTA041 6963169.00 2299642.00 04/05/01 0 HydroGeoLogic, Inc.

WITCTA043 6963110.00 2299725.00 04/09/02 0 Ellis Environmental Group

WITCTA044 6963056.00 2299836.00 10/06/99 0 HydroGeoLogic, Inc.

WJETA060 6963892.00 2290889.00 05/01/03 5,192 Earth Tech Corporation

WJETA061 6963915.00 2290873.00 05/03/02 58,000 Earth Tech Corporation

WJETA501 6962953.00 2296722.00 05/01/99 448 U.S. Geological Survey

WJETA502 6962955.00 2296726.00 06/01/98 720 U.S. Geological Survey

WJETA503 6962957.00 2296723.00 05/01/99 433 U.S. Geological Survey

WJETA504 6962911.00 2296817.00 05/01/99 478 U.S. Geological Survey

WJETA505 6962911.00 2296820.00 02/01/98 480 U.S. Geological Survey

WJETA507 6962835.00 2296843.00 05/01/99 463 U.S. Geological Survey

WJETA508 6962836.00 2296841.00 05/01/99 537 U.S. Geological Survey

WJETA509 6962837.00 2296842.00 05/01/99 507 U.S. Geological Survey

WJETA510 6962680.00 2296812.00 02/01/98 40.8 U.S. Geological Survey

WJETA511 6962679.00 2296809.00 01/01/01 64 U.S. Geological Survey

WJETA512 6962682.00 2296810.00 06/01/98 538 U.S. Geological Survey

WJETA513 6962998.00 2296754.00 06/01/98 614 U.S. Geological Survey

WJETA514 6962864.00 2296751.00 07/01/98 390 U.S. Geological Survey

WJETA515 6962863.00 2296894.00 06/01/98 730 U.S. Geological Survey

WJETA516 6962969.00 2296860.00 05/01/99 731 U.S. Geological Survey

WJETA517 6962866.00 2296714.00 05/01/99 507 U.S. Geological Survey

WJETA518 6962950.00 2296714.00 05/01/99 642 U.S. Geological Survey

WJETA519 6962842.00 2296754.00 05/01/99 403 U.S. Geological Survey

WJETA520 6962879.00 2296810.00 06/01/98 634 U.S. Geological Survey

WJETA521 6962921.00 2296867.00 06/01/98 576 U.S. Geological Survey

WJETA522 6962871.00 2296834.00 06/01/98 691 U.S. Geological Survey

WJETA523 6962887.00 2296845.00 06/01/98 691 U.S. Geological Survey

WJETA524 6962818.00 2296807.00 06/01/98 730 U.S. Geological Survey

WJETA525 6962800.00 2296820.00 06/01/98 461 U.S. Geological Survey

WJETA526 6962778.00 2296826.00 11/01/97 479 U.S. Geological Survey

WJETA527 6962856.00 2296937.00 06/01/98 576 U.S. Geological Survey

WJETA528 6962815.00 2296880.00 06/01/98 365 U.S. Geological Survey

WJETA529 6962759.00 2296997.00 05/01/99 552 U.S. Geological Survey

WJETA530 6959546.93 2296533.87 12/14/96 0 Jacobs Engineering Group

WJETA531 6958909.00 2295894.00 12/08/96 0 Jacobs Engineering Group

WJETA534 6958941.15 2296341.54 12/14/96 0 Jacobs Engineering Group

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A1 37

WJETA535 6959722.27 2296794.44 10/26/00 0 HydroGeoLogic, Inc.

WL–090JETA 6963983.92 2291896.50 07/28/98 158 Jacobs Engineering Group

WL–091JETA 6964268.00 2291919.00 07/28/98 1,400 Jacobs Engineering Group

WL–095JETA 6964195.00 2291863.00 08/11/98 1,770 Jacobs Engineering Group

WP07–10B 6961277.46 2296040.45 04/20/99 3,100 HydroGeoLogic, Inc.

WSAICTA002 6964473.05 2294921.57 12/14/00 21 Science Applications International Corp.

WSAICTA003 6962921.08 2294630.39 12/11/00 1,100 Science Applications International Corp.

WSAICTA004 6963343.80 2293586.34 12/14/00 270 Science Applications International Corp.

WSAICTA005 6963578.03 2293587.28 12/14/00 600 Science Applications International Corp.

WSAICTA007 6961971.36 2294861.23 09/27/01 1,010 Science Applications International Corp.

WSAICTA008 6961974.34 2294585.80 04/11/02 200 Ellis Environmental Group

WSAICTA010 6962655.14 2294341.87 04/11/02 2,600 Ellis Environmental Group

WSAICTA014 6963885.00 2293582.00 09/25/01 1,020 Science Applications International Corp.

WSAICTA015 6966805.36 2299042.92 09/24/01 1 Science Applications International Corp.

WSAICTA016 6966551.89 2299049.00 05/01/03 249 Earth Tech Corporation

WSAICTA017 6966921.03 2298810.34 09/24/01 0 Science Applications International Corp.

WSAICTA021 6966905.72 2299748.32 10/03/01 0 Science Applications International Corp.

WSAICTA023 6967077.62 2298656.36 05/07/02 5 Earth Tech Corporation

WSAICTA025 6961666.49 2294798.23 06/21/02 0 Science Applications International Corp.

WSAICTA026 6961723.12 2294432.29 06/21/02 0 Science Applications International Corp.

WUSGSTA001 6962644.00 2297002.00 02/01/98 393.6 U.S. Geological Survey

WUSGSTA002 6962263.00 2296964.00 02/01/98 .948 U.S. Geological Survey

WUSGSTA003 6961872.00 2296987.00 06/01/98 16 U.S. Geological Survey

WUSGSTA004 6962085.00 2297504.00 06/01/98 307 U.S. Geological Survey

WUSGSTA005 6961955.00 2297925.00 02/01/98 58.8 U.S. Geological Survey

WUSGSTA006 6961670.00 2298251.00 02/01/98 3.49 U.S. Geological Survey

WUSGSTA007 6962684.00 2298206.00 02/01/98 240 U.S. Geological Survey

WUSGSTA008 6962636.00 2296832.00 06/01/98 72 U.S. Geological Survey

WUSGSTA009 6962766.00 2296661.00 02/01/98 5.45 U.S. Geological Survey

WUSGSTA010 6962707.00 2296719.00 02/01/98 163.2 U.S. Geological Survey

WUSGSTA011 6962668.00 2296825.00 06/01/98 595 U.S. Geological Survey

WUSGSTA012 6962787.00 2297104.00 02/01/98 460.8 U.S. Geological Survey

WUSGSTA013 6962745.00 2297215.00 02/01/98 268.8 U.S. Geological Survey

WUSGSTA014 6962826.00 2297306.00 06/01/98 211 U.S. Geological Survey

WUSGSTA015 6963054.00 2296591.00 02/01/98 691.2 U.S. Geological Survey

WUSGSTA016 6963036.00 2296370.00 02/01/98 681.6 U.S. Geological Survey

WUSGSTA017 6962675.00 2296815.00 06/01/98 614 U.S. Geological Survey

WUSGSTA018 6962566.00 2297413.00 02/01/98 384 U.S. Geological Survey

WUSGSTA019 6963009.00 2297050.00 02/01/98 460.8 U.S. Geological Survey

WUSGSTA020 6962722.00 2296818.00 06/01/98 614 U.S. Geological Survey

WUSGSTA021 6962659.00 2296814.00 06/01/98 403 U.S. Geological Survey

WUSGSTA022 6962736.00 2296740.00 06/01/98 691 U.S. Geological Survey

WUSGSTA023 6962638.00 2296810.00 02/01/98 33.6 U.S. Geological Survey

Table A1. Maximum historical trichloroethene (TCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1984–2003—Continued. 

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
38 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Table A2

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Date

collected

Maximum

historical

concentration

(micrograms

per liter)

Source

1–A 6964505.00 2300900.00 03/05/85 0 Radian Corporation

1–B 6964685.00 2301062.00 10/15/97 0 HydroGeoLogic, Inc.

1–C 6964450.00 2301255.00 03/05/85 0 Radian Corporation

5–B 6962558.83 2295444.82 03/05/85 0 Radian Corporation

BGSMW01 6964916.00 2299511.00 04/09/97 0 International Technology Corp.

BSS–A 6965476.60 2300120.78 01/10/96 0 Law Environmental

BSS–B 6965797.63 2300091.88 01/15/96 0 Law Environmental

CAR–RW1 6960869.00 2296755.00 09/16/99 2 HydroGeoLogic, Inc.

CAR–RW10 6961279.06 2296078.88 06/20/02 0 HydroGeoLogic, Inc.

CAR–RW11 6961412.39 2296075.74 09/16/99 13 HydroGeoLogic, Inc.

CAR–RW12 6961192.46 2295933.72 02/27/02 .54 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 09/16/99 3 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 09/17/99 7 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 11/05/99 0 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 09/17/99 4 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 09/16/99 14 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 09/17/99 6 HydroGeoLogic, Inc.

F–204 6965223.00 2290634.70 11/10/95 0 Jacobs Engineering Group

F–209 6969007.27 2290901.72 05/01/03 0 Earth Tech Corporation

F–214 6966040.04 2289864.00 10/24/02 0 Earth Tech Corporation

F–216 6965776.18 2290219.93 10/08/95 0 Jacobs Engineering Group

F–217 6965959.98 2290109.05 01/27/00 0 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.29 2291474.21 05/01/03 0 Earth Tech Corporation

F–219 6964343.31 2291472.82 10/30/95 0 Jacobs Engineering Group

F–220 6964050.32 2290236.60 11/13/95 0 Jacobs Engineering Group

F–221 6963244.60 2290575.22 10/27/95 0 Jacobs Engineering Group

FSA–3–03 6969021.17 2290678.81 11/10/95 0 Jacobs Engineering Group

FSA–3–04 6969021.23 2290632.44 11/10/95 0 Jacobs Engineering Group

FSA–3–06 6969077.00 2290679.76 11/16/95 0 Jacobs Engineering Group

FSA–3–08 6969116.51 2290712.86 11/14/95 0 Jacobs Engineering Group

FSA–3–10 6969075.75 2290779.47 11/14/95 0 Jacobs Engineering Group

FSA–3–12 6968999.05 2290836.80 11/13/95 0 Jacobs Engineering Group

FT08–11A 6962321.00 2295878.00 02/16/01 0 HydroGeoLogic, Inc.

FT08–11B 6962034.00 2295931.00 01/14/96 0 Law Environmental

FT09–12A 6960549.82 2295439.22 12/05/01 0 HydroGeoLogic, Inc.

FT09–12B 6960709.31 2295697.41 02/21/01 56 HydroGeoLogic, Inc.

FT09–12C 6960590.30 2295771.51 12/04/01 0 HydroGeoLogic, Inc.

FT09–12E 6960701.08 2295821.16 12/05/01 3 HydroGeoLogic, Inc.

GMI–02M 6964661.03 2288826.22 10/06/95 0 Jacobs Engineering Group

GMI–04–01M 6960931.00 2296729.00 10/29/97 0 HydroGeoLogic, Inc.

GMI–05M 6964307.19 2288362.92 10/05/95 0 Jacobs Engineering Group

GMI–22–01M 6965122.22 2297689.15 07/16/95 0 Law Environmental

GMI–22–02M 6966633.00 2296187.00 05/01/03 0 Earth Tech Corporation

GMI–22–03M 6966219.92 2298539.37 05/23/94 23 Geo-Marine, Inc.

GMI–22–04M 6967250.52 2297341.00 10/26/00 1 HydroGeoLogic, Inc.

GMI–22–05M 6966940.33 2299432.08 05/01/03 0 Earth Tech Corporation

GMI–22–06M 6967004.48 2298186.58 05/23/94 7 Geo-Marine, Inc.

GMI–22–07M 6969019.00 2298323.00 05/01/03 0 Earth Tech Corporation

GMI–22–08M 6970324.00 2298972.00 01/11/96 0 Law Environmental

HM–10 6965810.91 2290121.80 01/27/00 0 U.S. Air Force, Center for Environmental Excellence

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
Table A2 39

HM–101 6964442.18 2288886.61 04/18/86 0 Radian Corporation

HM–104 6963114.28 2291200.56 01/19/96 0 Jacobs Engineering Group

HM–106 6968075.70 2290771.26 10/24/95 0 Jacobs Engineering Group

HM–11 6963091.76 2290932.28 08/29/83 24 Hargis + Associates

HM–110 6963667.53 2293163.24 12/08/00 0 Science Applications International Corp.

HM–111 6963624.05 2293266.53 10/10/95 0 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 04/06/00 2 HydroGeoLogic, Inc.

HM–113 6964677.00 2293133.60 01/20/96 0 Jacobs Engineering Group

HM–114 6963912.10 2294352.00 04/11/02 1 Ellis Environmental Group

HM–116 6966411.43 2294283.69 10/14/02 22 Ellis Environmental Group

HM–118 6968035.19 2294780.47 10/14/02 6 Ellis Environmental Group

HM–119 6968726.00 2294271.80 11/01/94 3.6 Jacobs Engineering Group

HM–12 6963088.53 2290396.72 02/14/86 0 Radian Corporation

HM–120 6969489.04 2295343.23 05/01/03 0 Earth Tech Corporation

HM–121 6967390.20 2295279.20 11/07/95 0 Jacobs Engineering Group

HM–123 6961638.50 2295272.60 05/01/03 0 Earth Tech Corporation

HM–124 6963957.77 2295223.26 11/14/95 0 Jacobs Engineering Group

HM–126 6963121.05 2294300.23 07/20/00 1 HydroGeoLogic, Inc.

HM–127 6961588.47 2294853.29 05/01/03 0 Earth Tech Corporation

HM–13 6963100.15 2289898.00 10/25/95 0 Jacobs Engineering Group

HM–14 6963093.00 2289243.30 11/01/95 0 Jacobs Engineering Group

HM–16 6964155.13 2290241.53 04/05/86 0 Radian Corporation

HM–17 6963993.31 2290451.65 10/31/95 0 Jacobs Engineering Group

HM–23 6963113.58 2288752.31 04/05/86 0 Radian Corporation

HM–29 6966014.89 2290711.88 03/21/85 4 Hargis + Associates

HM–31 6963114.44 2291505.33 05/01/03 0 Earth Tech Corporation

HM–36 6965484.00 2289786.00 05/01/03 0 Earth Tech Corporation

HM–56 6965454.00 2291472.23 10/11/85 10 Hargis + Associates

HM–59 6966811.00 2291469.61 08/08/84 920 Hargis + Associates

HM–64 6966406.97 2291114.57 10/30/95 410 Jacobs Engineering Group

HM–7 6966159.99 2290135.86 01/27/00 0 U.S. Air Force, Center for Environmental Excellence

HM–71 6966470.35 2292457.39 05/27/93 77 Jacobs Engineering Group

HM–88 6964479.91 2291919.17 05/01/03 4.5 Earth Tech Corporation

HM–90 6965640.09 2292457.85 05/21/93 0 Jacobs Engineering Group

HM–91 6966174.30 2292586.29 06/04/93 0 Jacobs Engineering Group

HM–92 6965645.68 2292250.42 10/28/95 0 Jacobs Engineering Group

HM–93 6965074.75 2292194.39 05/01/03 0 Earth Tech Corporation

HM–95 6965442.59 2293156.22 05/01/03 0 Earth Tech Corporation

HM–96 6966507.03 2293168.95 01/15/03 15 Earth Tech Corporation

HM–97 6966884.14 2293158.51 05/26/93 45 Jacobs Engineering Group

HM–98 6967418.95 2293207.55 05/01/03 0 Earth Tech Corporation

ITMW–01T 6961062.05 2298967.00 10/08/02 0 Ellis Environmental Group

LF01–1D 6964288.00 2301413.00 10/14/98 0 HydroGeoLogic, Inc.

LF01–1E 6964606.00 2301174.00 10/20/97 0 HydroGeoLogic, Inc.

LF03–3D 6962056.65 2293269.12 05/01/03 0 Earth Tech Corporation

LF04–01 6961026.99 2295378.56 12/06/01 0 HydroGeoLogic, Inc.

LF04–02 6961113.06 2296309.10 04/20/99 10 HydroGeoLogic, Inc.

LF04–03 6961064.00 2296306.00 09/16/99 2 HydroGeoLogic, Inc.

LF04–04 6960941.63 2297165.64 01/13/96 0 Law Environmental

LF04–10 6960411.83 2297078.91 05/01/03 0 Earth Tech Corporation

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
40 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

LF04–4C 6960600.00 2296588.00 10/06/99 0 HydroGeoLogic, Inc.

LF04–4D 6960828.00 2296412.00 05/05/03 0 HydroGeoLogic, Inc.

LF05–01 6962728.35 2294577.83 10/14/02 0 Ellis Environmental Group

LF05–02 6962653.12 2295278.95 04/18/02 0 Ellis Environmental Group

LF05–18 6961555.64 2297075.43 10/29/97 0 HydroGeoLogic, Inc.

LF05–19 6961239.89 2297461.35 05/01/03 0 Earth Tech Corporation

LF05–5B 6961901.56 2296078.25 10/16/02 0 Ellis Environmental Group

LF05–5C 6961720.05 2295993.73 01/15/96 0 Law Environmental

LF05–5D 6961739.00 2295754.00 01/14/96 0 Law Environmental

LF05–5G 6961558.00 2296690.00 05/05/03 0 HydroGeoLogic, Inc.

LF05–5H 6961732.39 2296340.79 05/05/03 0 HydroGeoLogic, Inc.

LSA1628–1 6967936.00 2297802.00 10/20/95 0 Law Environmental

LSA1628–2 6967943.00 2297847.00 01/15/96 0 Law Environmental

LSA1628–3 6967993.10 2297791.30 10/07/99 1 HydroGeoLogic, Inc.

MW–10 6965836.22 2300542.00 10/30/97 0 HydroGeoLogic, Inc.

MW–11 6965707.00 2300792.00 10/24/97 0 HydroGeoLogic, Inc.

MW–12 6966149.32 2300142.00 08/22/01 0 Science Applications International Corp.

MW–19 6963513.00 2295369.00 08/22/01 0 Science Applications International Corp.

MW–38 6965981.00 2298153.00 12/04/01 0 HydroGeoLogic, Inc.

MW–5 6963910.00 2290826.00 10/25/01 0 U.S. Air Force, Center for Environmental Excellence

MW–50 6968529.00 2295622.00 07/22/96 0 Jacobs Engineering Group

MW–53 6964378.00 2296200.00 01/20/99 25 HydroGeoLogic, Inc.

MW–5C 6965804.00 2300139.00 04/10/97 0 International Technology Corp.

MW–7CRSWL 6965967.00 2300055.00 08/22/01 0 Science Applications International Corp.

MW–8 6965584.95 2300492.00 01/10/96 0 Law Environmental

MW–9 6966001.79 2300330.00 10/20/97 0 HydroGeoLogic, Inc.

MWMTAC–001 6959116.00 2296520.00 12/12/96 0 Jacobs Engineering Group

OT–15C 6963316.00 2300948.00 04/23/97 4 CH2M Hill

RW–11U 6965385.00 2292586.20 07/30/94 0 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 0 U.S. Air Force, Center for Environmental Excellence

RW–2U 6964643.00 2292424.50 01/20/93 0 U.S. Air Force, Center for Environmental Excellence

SD13–01 6963377.64 2300623.03 10/31/00 0 HydroGeoLogic, Inc.

SD13–02 6963472.80 2300754.49 10/27/00 0 HydroGeoLogic, Inc.

SD13–03 6963347.97 2300700.85 01/11/96 0 Law Environmental

SD13–04 6963346.39 2300773.06 10/31/00 0 HydroGeoLogic, Inc.

SD13–05 6963904.00 2300776.00 01/12/96 0 Law Environmental

SD13–06 6963164.35 2300908.00 01/22/99 15 HydroGeoLogic, Inc.

SD13–07 6963165.85 2301009.00 07/02/01 0 HydroGeoLogic, Inc.

SPOT35–2 6966175.00 2296854.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–3 6966109.00 2296851.00 12/03/01 0 HydroGeoLogic, Inc.

SPOT35–4 6966175.00 2296778.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–5 6966020.04 2296847.00 01/22/99 5 HydroGeoLogic, Inc.

SPOT35–8 6966428.55 2296970.16 10/26/00 0 HydroGeoLogic, Inc.

ST14–01 6963295.30 2300090.83 01/11/96 0 Law Environmental

ST14–02 6963511.64 2300091.66 01/13/96 0 Law Environmental

ST14–03 6964079.97 2299891.62 10/09/02 0 Ellis Environmental Group

ST14–04 6963642.65 2300345.31 01/13/96 0 Law Environmental

ST14–14 6964309.76 2299735.00 05/01/98 0 HydroGeoLogic, Inc.

ST14–24 6964018.00 2299061.45 01/19/99 6 HydroGeoLogic, Inc.

ST14–26 6964593.00 2299557.00 04/13/98 0 HydroGeoLogic, Inc.

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A2 41

ST14–27 6964258.00 2300212.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W05 6963726.00 2299094.00 10/10/02 0 Ellis Environmental Group

ST14–W06 6963807.00 2299331.00 01/11/96 0 Law Environmental

ST14–W07 6963615.00 2299394.00 01/12/96 0 Law Environmental

ST14–W08 6964324.00 2299480.00 01/12/96 0 Law Environmental

ST14–W09 6963472.00 2299550.00 01/13/96 0 Law Environmental

ST14–W11 6964129.00 2299658.00 10/27/00 0 HydroGeoLogic, Inc.

ST14–W13 6963695.00 2299776.00 01/11/96 0 Law Environmental

ST14–W15 6963316.00 2299923.00 05/01/03 0 Earth Tech Corporation

ST14–W16 6964065.00 2300128.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W21 6963418.00 2300242.00 10/31/00 0 HydroGeoLogic, Inc.

ST14–W31 6963550.00 2300831.00 01/19/99 1 HydroGeoLogic, Inc.

T8 6965421.00 2289949.00 01/14/02 0 U.S. Air Force, Center for Environmental Excellence

T9 6965551.00 2289993.00 01/14/02 0 U.S. Air Force, Center for Environmental Excellence

USGS01T 6970384.00 2297661.30 12/09/96 0 Jacobs Engineering Group

USGS02T 6970326.56 2300333.85 12/09/96 0 Jacobs Engineering Group

USGS03T 6968704.70 2300610.01 01/10/96 0 Law Environmental

USGS04T 6968758.00 2299178.00 10/09/02 0 Ellis Environmental Group

USGS06T 6963763.00 2297542.08 05/01/03 0 Earth Tech Corporation

USGS07T 6960168.00 2295246.00 12/05/01 1 HydroGeoLogic, Inc.

VEP–10 6965452.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 0 Earth Tech Corporation

VEP–12 6965492.14 2289740.47 05/08/02 0 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/15/03 0 Shaw Environmental

VEP–14 6965532.35 2289740.23 05/08/02 0 Earth Tech Corporation

VEP–15 6965572.27 2289739.27 05/09/02 0 Earth Tech Corporation

VEP–16 6965593.48 2289739.28 05/09/02 0 Earth Tech Corporation

VEP–17 6965612.88 2289738.95 05/09/02 0 Earth Tech Corporation

VEP–18 6965631.89 2289739.19 05/09/02 0 Earth Tech Corporation

VEP–18B 6965652.25 2289740.40 05/15/03 0 Shaw Environmental

VEP–19 6965673.36 2289738.41 05/09/02 0 Earth Tech Corporation

VEP–20 6965692.62 2289738.81 05/10/02 0 Earth Tech Corporation

VEP–21 6965885.28 2289766.47 05/11/02 0 Earth Tech Corporation

VEP–22 6965904.64 2289772.36 05/11/02 0 Earth Tech Corporation

VEP–23 6965923.82 2289776.40 05/11/02 0 Earth Tech Corporation

VEP–24 6965947.42 2289785.33 05/11/02 0 Earth Tech Corporation

VEP–25 6965961.57 2289792.04 05/11/02 0 Earth Tech Corporation

VEP–26 6965979.44 2289801.00 05/15/03 0 Shaw Environmental

VEP–27 6965996.42 2289811.11 05/12/02 0 Earth Tech Corporation

VEP–28 6966006.35 2289828.89 05/12/02 0 Earth Tech Corporation

VEP–29 6966014.37 2289844.00 05/15/03 0 Shaw Environmental

VEP–3 6966027.00 2289825.00 05/12/02 0 Earth Tech Corporation

VEP–31 6966040.69 2289879.41 05/13/02 0 Earth Tech Corporation

VEP–32 6966058.55 2289884.99 05/13/02 0 Earth Tech Corporation

VEP–33 6966075.62 2289893.21 05/14/02 0 Earth Tech Corporation

VEP–35 6966114.00 2289901.00 05/15/03 0 Shaw Environmental

VEP–36 6966135.75 2289905.70 05/14/02 0 Earth Tech Corporation

VEP–37 6966155.08 2289906.66 05/14/02 0 Earth Tech Corporation

VEP–39 6966193.26 2289910.01 05/14/02 0 Earth Tech Corporation

VEP–4 6966050.33 2289838.40 05/15/03 0 Shaw Environmental

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
42 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

VEP–40 6966096.49 2289877.53 05/13/02 0 Earth Tech Corporation

VEP–41 6966067.00 2289850.00 05/13/02 2.3 Earth Tech Corporation

VEP–5 6965352.65 2289735.96 05/07/02 0 Earth Tech Corporation

VEP–6 6965371.63 2289740.48 05/07/02 0 Earth Tech Corporation

VEP–7 6965393.00 2289742.00 05/07/02 0 Earth Tech Corporation

VEP–8 6965413.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–9 6965432.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 0 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 0 Earth Tech Corporation

W–129 6965935.87 2289777.80 05/12/93 0 Jacobs Engineering Group

W–130 6966042.89 2289868.15 06/14/93 0 Jacobs Engineering Group

W–131L 6963276.81 2290536.11 10/19/91 0 Chem-Nuclear Geotech, Inc.

W–131U 6963278.00 2290541.00 10/24/91 0 Chem-Nuclear Geotech, Inc.

W–132 6966136.51 2289895.52 05/12/93 0 Jacobs Engineering Group

W–133U 6963349.00 2290609.00 06/06/93 0 Jacobs Engineering Group

W–134 6969156.00 2291067.00 05/14/93 0 Jacobs Engineering Group

W–135 6967837.68 2290606.07 05/01/03 0 Earth Tech Corporation

W–137 6963499.00 2290968.00 01/25/97 0 Jacobs Engineering Group

W–141L 6965386.71 2290672.36 10/18/91 0 Chem-Nuclear Geotech, Inc.

W–141U 6965391.58 2290672.52 06/14/93 0 Jacobs Engineering Group

W–143 6968548.58 2291192.24 09/11/91 0 Chem-Nuclear Geotech, Inc.

W–144 6965577.00 2290450.00 10/17/91 0 Chem-Nuclear Geotech, Inc.

W–145 6964387.65 2290600.35 09/15/91 0 Chem-Nuclear Geotech, Inc.

W–146 6965118.51 2290620.30 05/09/93 0 Jacobs Engineering Group

W–147 6965824.00 2290711.00 01/15/03 .15 Earth Tech Corporation

W–149 6965190.70 2292456.97 05/01/03 0 Earth Tech Corporation

W–151 6964980.90 2292475.30 05/25/93 0 Jacobs Engineering Group

W–154 6963926.46 2290107.04 10/20/91 0 Chem-Nuclear Geotech, Inc.

W–155 6968275.39 2293145.82 01/15/03 0 Earth Tech Corporation

W–156 6964824.12 2292815.02 05/27/93 0 Jacobs Engineering Group

W–158 6963954.83 2291080.82 06/06/93 0 Jacobs Engineering Group

W–160 6963448.68 2291368.51 01/24/97 0 Jacobs Engineering Group

W7TAITC 6966050.00 2290097.00 01/26/00 0 U.S. Air Force, Center for Environmental Excellence

W9AWNITC 6965921.00 2289851.00 01/24/00 0 U.S. Air Force, Center for Environmental Excellence

W9WNITC 6965916.00 2289859.00 10/16/99 0 U.S. Air Force, Center for Environmental Excellence

WCHMHTA004 6967949.00 2295041.00 09/26/01 1 Science Applications International Corp.

WCHMHTA006 6966690.11 2295406.97 05/01/03 .7 Earth Tech Corporation

WCHMHTA008 6967889.89 2295597.48 05/01/03 0 Earth Tech Corporation

WCHMHTA009 6968444.69 2296663.99 10/31/00 4 HydroGeoLogic, Inc.

WCHMHTA010 6967640.08 2296398.80 10/11/02 6 Ellis Environmental Group

WCHMHTA011 6969295.20 2297328.38 09/26/01 5 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 0 Earth Tech Corporation

WCHMHTA014 6970403.90 2294072.81 10/14/02 0 Ellis Environmental Group

WHGLFE001 6961575.00 2296063.00 06/19/02 0 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 0 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 0 HydroGeoLogic, Inc.

WHGLFE004 6960785.00 2295825.00 06/19/02 0 HydroGeoLogic, Inc.

WHGLRW015 6960871.43 2298662.64 10/24/00 0 HydroGeoLogic, Inc.

WHGLRW016 6961034.95 2299201.47 10/16/02 0 Ellis Environmental Group

WHGLRW017 6960727.11 2299000.59 04/19/02 0 Ellis Environmental Group

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A2 43

WHGLRW018 6960532.93 2298744.63 11/01/99 0 HydroGeoLogic, Inc.

WHGLRW019 6960684.23 2298620.19 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA003 6961043.88 2298029.84 10/05/99 0 HydroGeoLogic, Inc.

WHGLTA004 6962943.38 2295760.62 04/18/02 0 Ellis Environmental Group

WHGLTA005 6963470.00 2301044.00 10/18/99 0 HydroGeoLogic, Inc.

WHGLTA007 6963162.51 2301093.11 06/26/01 0 HydroGeoLogic, Inc.

WHGLTA008 6963955.17 2300016.84 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA009 6965211.65 2297528.70 05/01/03 0 Earth Tech Corporation

WHGLTA010 6965580.03 2296770.93 10/31/00 0 HydroGeoLogic, Inc.

WHGLTA011 6968356.67 2295873.87 07/13/00 0 HydroGeoLogic, Inc.

WHGLTA012 6965920.84 2297740.00 10/10/02 0 Ellis Environmental Group

WHGLTA013 6965958.00 2297177.00 12/04/01 0 HydroGeoLogic, Inc.

WHGLTA014 6966295.34 2297373.92 10/27/00 0 HydroGeoLogic, Inc.

WHGLTA020 6962285.83 2299684.95 11/05/99 0 HydroGeoLogic, Inc.

WHGLTA022 6960401.65 2297691.54 11/03/99 0 HydroGeoLogic, Inc.

WHGLTA023 6960492.16 2298565.43 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA025 6961608.26 2298942.63 10/08/02 0 Ellis Environmental Group

WHGLTA028 6967761.00 2297451.00 10/11/02 1 Ellis Environmental Group

WHGLTA029 6965736.00 2298574.00 10/16/02 0 Ellis Environmental Group

WHGLTA034 6963889.66 2301060.21 10/16/00 0 HydroGeoLogic, Inc.

WHGLTA035 6963823.75 2301048.39 10/16/00 0 HydroGeoLogic, Inc.

WHGLTA043 6961771.99 2297021.32 05/01/03 0 Earth Tech Corporation

WHGLTA044 6961721.40 2297347.37 10/17/02 0 Ellis Environmental Group

WHGLTA045 6961321.90 2298368.80 10/17/02 0 Ellis Environmental Group

WHGLTA046 6961298.49 2296089.68 02/26/02 6.9 HydroGeoLogic, Inc.

WHGLTA048 6960916.20 2298714.83 05/01/03 0 Earth Tech Corporation

WHGLTA049 6962329.24 2299269.36 10/17/02 0 Ellis Environmental Group

WHGLTA051 6962894.90 2296247.12 10/16/02 1 Ellis Environmental Group

WHGLTA052 6962769.45 2296098.07 04/06/01 0 HydroGeoLogic, Inc.

WHGLTA053 6960334.00 2295474.00 12/05/01 0 HydroGeoLogic, Inc.

WHGLTA054 6960748.26 2295541.09 06/11/01 40 HydroGeoLogic, Inc.

WHGLTA055 6960809.82 2295662.85 10/11/02 1 Ellis Environmental Group

WHGLTA056 6960787.36 2295827.62 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA060 6965619.32 2298210.18 11/26/01 0 HydroGeoLogic, Inc.

WHGLTA061 6965621.74 2298341.01 11/27/01 0 HydroGeoLogic, Inc.

WHGLTA062 6965663.00 2298317.27 11/26/01 0 HydroGeoLogic, Inc.

WHGLTA063 6965677.07 2298270.14 11/27/01 0 HydroGeoLogic, Inc.

WHGLTA064 6965075.48 2298351.15 05/01/03 0 Earth Tech Corporation

WHGLTA065 6960593.00 2295633.00 12/06/01 0 HydroGeoLogic, Inc.

WHGLTA066 6960807.00 2295402.00 12/02/01 2 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 0 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA072 6961283.00 2296102.00 06/18/02 6.7 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 05/05/03 28 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA075 6961072.00 2295934.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA076 6961086.00 2295934.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA077 6960785.00 2295776.00 05/05/03 0 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 0 Ellis Environmental Group

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
44 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WHGLTA101 6964634.00 2301220.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA102 6964449.00 2301388.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA103 6964314.53 2301522.24 06/02/99 0 HydroGeoLogic, Inc.

WHGLTA104 6964226.00 2301608.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA201 6963198.14 2298660.88 12/09/98 0 HydroGeoLogic, Inc.

WHGLTA202 6963326.21 2298832.59 12/14/98 0 HydroGeoLogic, Inc.

WHGLTA203 6963059.00 2298401.00 01/20/99 1 HydroGeoLogic, Inc.

WHGLTA204 6963625.62 2298104.66 12/10/98 0 HydroGeoLogic, Inc.

WHGLTA302 6962603.00 2294422.00 06/20/02 0 Science Applications International Corp.

WHGLTA303 6962351.00 2294401.00 06/21/02 0 Science Applications International Corp.

WHGLTA601 6962753.00 2297473.69 10/16/02 0 Ellis Environmental Group

WHGLTA602 6962752.66 2297625.01 12/08/98 0 HydroGeoLogic, Inc.

WHGLTA603 6962713.38 2297727.19 04/19/02 0 Ellis Environmental Group

WHGLTA604 6963195.00 2297530.00 12/14/98 0 HydroGeoLogic, Inc.

WHGLTA701 6961835.73 2295332.86 07/03/02 0 Science Applications International Corp.

WHGLTA702 6961920.00 2295882.00 02/21/01 0 HydroGeoLogic, Inc.

WHGLTA703 6961680.70 2295741.23 02/21/01 0 HydroGeoLogic, Inc.

WHGLTA704 6962141.07 2295831.51 10/10/02 0 Ellis Environmental Group

WHGLTA705 6962003.00 2296027.00 02/15/01 0 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 02/16/01 0 HydroGeoLogic, Inc.

WHGLTA707 6962188.16 2295592.35 02/19/01 0 HydroGeoLogic, Inc.

WHGLTA708 6962019.93 2295647.18 02/19/01 0 HydroGeoLogic, Inc.

WHGLTA709 6961934.71 2295750.93 02/19/01 0 HydroGeoLogic, Inc.

WHGLTA801 6962790.06 2295857.80 04/06/01 0 HydroGeoLogic, Inc.

WHGLTA901 6967832.00 2299643.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA902 6967671.00 2299952.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA903 6967830.00 2300086.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA904 6968031.00 2300174.00 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA905 6967574.00 2299782.00 10/11/99 0 HydroGeoLogic, Inc.

WITCTA001 6969592.01 2296447.73 04/28/97 0 International Technology Corp.

WITCTA002 6969259.49 2296136.48 05/06/97 0 International Technology Corp.

WITCTA003 6969112.00 2297406.00 10/09/02 0 Ellis Environmental Group

WITCTA004 6968940.00 2297491.00 04/03/01 1 HydroGeoLogic, Inc.

WITCTA005 6968459.46 2298167.79 04/28/97 0 International Technology Corp.

WITCTA006 6968427.00 2298263.00 05/02/97 0 International Technology Corp.

WITCTA007 6968310.56 2298433.07 04/22/97 0 International Technology Corp.

WITCTA008 6967940.00 2298030.00 05/01/97 0 International Technology Corp.

WITCTA009 6967862.00 2298234.00 08/23/01 0 Science Applications International Corp.

WITCTA010 6967695.00 2298753.00 10/08/02 0 Ellis Environmental Group

WITCTA011 6967455.26 2297357.31 04/30/97 0 International Technology Corp.

WITCTA012 6967348.77 2298224.39 05/01/03 0 Earth Tech Corporation

WITCTA013 6967017.00 2297752.00 08/23/01 0 Science Applications International Corp.

WITCTA014 6966904.57 2297418.51 08/23/01 0 Science Applications International Corp.

WITCTA015 6966333.00 2298395.00 08/23/01 4 Science Applications International Corp.

WITCTA016 6966239.00 2298062.00 10/08/99 0 HydroGeoLogic, Inc.

WITCTA017 6967298.15 2299305.78 10/17/02 0 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 0 Ellis Environmental Group

WITCTA020 6963895.32 2296316.79 04/29/97 0 International Technology Corp.

WITCTA021 6963795.40 2298719.16 05/01/97 0 International Technology Corp.

WITCTA022 6963651.00 2298744.00 04/29/97 0 International Technology Corp.

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A2 45

WITCTA024 6965971.78 2298956.02 10/09/02 0 Ellis Environmental Group

WITCTA025 6966005.00 2299534.00 04/24/97 14 International Technology Corp.

WITCTA026 6965458.00 2299481.00 10/09/02 0 Ellis Environmental Group

WITCTA027 6965194.74 2299511.86 04/24/97 0 International Technology Corp.

WITCTA028 6965161.00 2300621.00 04/24/97 0 International Technology Corp.

WITCTA031 6964690.00 2299152.00 05/01/97 0 International Technology Corp.

WITCTA032 6964501.67 2299196.64 04/30/97 0 International Technology Corp.

WITCTA033 6964388.00 2300520.00 04/30/97 0 International Technology Corp.

WITCTA034 6963956.68 2300951.49 10/17/00 4 HydroGeoLogic, Inc.

WITCTA035 6963388.12 2299094.68 05/01/97 0 International Technology Corp.

WITCTA036 6963182.00 2299629.00 05/02/97 0 International Technology Corp.

WITCTA037 6963424.00 2297784.00 04/29/97 0 International Technology Corp.

WITCTA039 6962339.77 2295415.41 05/01/97 0 International Technology Corp.

WITCTA040 6963260.00 2299515.00 05/01/03 0 Earth Tech Corporation

WITCTA041 6963169.00 2299642.00 10/09/02 0 Ellis Environmental Group

WITCTA043 6963110.00 2299725.00 10/10/02 0 Ellis Environmental Group

WITCTA044 6963056.00 2299836.00 10/06/99 0 HydroGeoLogic, Inc.

WJETA060 6963892.00 2290889.00 05/01/03 0 Earth Tech Corporation

WJETA061 6963915.00 2290873.00 05/03/02 0 Earth Tech Corporation

WJETA530 6959546.93 2296533.87 12/14/96 0 Jacobs Engineering Group

WJETA531 6958909.00 2295894.00 12/08/96 0 Jacobs Engineering Group

WJETA534 6958941.15 2296341.54 12/14/96 0 Jacobs Engineering Group

WJETA535 6959722.27 2296794.44 10/26/00 0 HydroGeoLogic, Inc.

WP07–10B 6961277.46 2296040.45 01/22/99 15 HydroGeoLogic, Inc.

WSAICTA002 6964473.05 2294921.57 12/14/00 0 Science Applications International Corp.

WSAICTA003 6962921.08 2294630.39 06/19/02 0 Science Applications International Corp.

WSAICTA004 6963343.80 2293586.34 06/26/02 0 Science Applications International Corp.

WSAICTA005 6963578.03 2293587.28 06/26/02 0 Science Applications International Corp.

WSAICTA007 6961971.36 2294861.23 06/26/02 0 Science Applications International Corp.

WSAICTA008 6961974.34 2294585.80 10/14/02 0 Ellis Environmental Group

WSAICTA010 6962655.14 2294341.87 05/01/03 0 Earth Tech Corporation

WSAICTA014 6963885.00 2293582.00 06/26/02 0 Science Applications International Corp.

WSAICTA015 6966805.36 2299042.92 09/24/01 9 Science Applications International Corp.

WSAICTA016 6966551.89 2299049.00 05/01/03 0 Earth Tech Corporation

WSAICTA017 6966921.03 2298810.34 09/24/01 0 Science Applications International Corp.

WSAICTA021 6966905.72 2299748.32 10/03/01 0 Science Applications International Corp.

WSAICTA023 6967077.62 2298656.36 10/03/01 17 Science Applications International Corp.

WSAICTA025 6961666.49 2294798.23 06/21/02 0 Science Applications International Corp.

WSAICTA026 6961723.12 2294432.29 06/21/02 0 Science Applications International Corp.

WUSGSTA011 6962668.00 2296825.00 01/15/03 0 U.S. Geological Survey

WUSGSTA014 6962826.00 2297306.00 01/15/03 0 U.S. Geological Survey

WUSGSTA015 6963054.00 2296591.00 01/15/03 0 U.S. Geological Survey

WUSGSTA018 6962566.00 2297413.00 01/15/03 0 U.S. Geological Survey

Table A2. Maximum historical tetrachloroethene (PCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and Naval Air 

Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
46 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Table A3 Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Date

collected

Maximum

historical

concentration

(micrograms

per liter)

Source

1–B 6964685.00 2301062.00 10/15/97 0 HydroGeoLogic, Inc.

BGSMW01 6964916.00 2299511.00 04/09/97 0 International Technology Corp.

BSS–A 6965476.60 2300120.78 10/19/95 0 Law Environmental

BSS–B 6965797.63 2300091.88 01/15/96 0 Law Environmental

CAR–RW1 6960869.00 2296755.00 11/05/99 740 HydroGeoLogic, Inc.

CAR–RW10 6961279.06 2296078.88 11/05/99 440 HydroGeoLogic, Inc.

CAR–RW11 6961412.39 2296075.74 11/05/99 580 HydroGeoLogic, Inc.

CAR–RW12 6961192.46 2295933.72 11/05/99 860 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 11/05/99 490 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 11/05/99 650 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 11/05/99 330 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 11/05/99 760 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 11/05/99 610 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 11/05/99 490 HydroGeoLogic, Inc.

F–204 6965223.00 2290634.70 11/10/95 .91 Jacobs Engineering Group

F–209 6969007.27 2290901.72 05/05/02 1.6 Earth Tech Corporation

F–214 6966040.04 2289864.00 10/24/02 710,000 Earth Tech Corporation

F–216 6965776.18 2290219.93 10/08/95 14 Jacobs Engineering Group

F–217 6965959.98 2290109.05 01/27/00 1,100 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.29 2291474.21 05/06/01 4,400 U.S. Air Force, Center for Environmental Excellence

F–219 6964343.31 2291472.82 10/30/95 0 Jacobs Engineering Group

F–220 6964050.32 2290236.60 11/13/95 0 Jacobs Engineering Group

F–221 6963244.60 2290575.22 10/27/95 0 Jacobs Engineering Group

FSA–3–03 6969021.17 2290678.81 11/10/95 0 Jacobs Engineering Group

FSA–3–04 6969021.23 2290632.44 11/10/95 0 Jacobs Engineering Group

FSA–3–06 6969077.00 2290679.76 11/16/95 0 Jacobs Engineering Group

FSA–3–08 6969116.51 2290712.86 11/14/95 0 Jacobs Engineering Group

FSA–3–10 6969075.75 2290779.47 11/14/95 0 Jacobs Engineering Group

FSA–3–12 6968999.05 2290836.80 11/13/95 0 Jacobs Engineering Group

FT08–11A 6962321.00 2295878.00 01/14/96 8 Law Environmental

FT08–11B 6962034.00 2295931.00 04/12/95 110 Law Environmental

FT09–12A 6960549.82 2295439.22 12/05/01 0 HydroGeoLogic, Inc.

FT09–12B 6960709.31 2295697.41 12/05/01 24 HydroGeoLogic, Inc.

FT09–12C 6960590.30 2295771.51 04/23/97 93 CH2M Hill

FT09–12E 6960701.08 2295821.16 05/05/03 63 HydroGeoLogic, Inc.

GMI–02M 6964661.03 2288826.22 10/06/95 0 Jacobs Engineering Group

GMI–04–01M 6960931.00 2296729.00 04/07/95 520 Law Environmental

GMI–05M 6964307.19 2288362.92 10/05/95 0 Jacobs Engineering Group

GMI–22–01M 6965122.22 2297689.15 04/12/95 40 Law Environmental

GMI–22–02M 6966633.00 2296187.00 05/01/03 0 Earth Tech Corporation

GMI–22–03M 6966219.92 2298539.37 10/17/02 150 Earth Tech Corporation

GMI–22–04M 6967250.52 2297341.00 04/17/98 200 HydroGeoLogic, Inc.

GMI–22–05M 6966940.33 2299432.08 05/01/03 0 Earth Tech Corporation

GMI–22–06M 6967004.48 2298186.58 04/30/97 239 CH2M Hill

GMI–22–07M 6969019.00 2298323.00 05/01/03 0 Earth Tech Corporation

GMI–22–08M 6970324.00 2298972.00 01/11/96 0 Law Environmental

HM–10 6965810.91 2290121.80 04/29/95 12 Jacobs Engineering Group

HM–104 6963114.28 2291200.56 01/19/96 0 Jacobs Engineering Group

HM–106 6968075.70 2290771.26 10/24/95 0 Jacobs Engineering Group

HM–110 6963667.53 2293163.24 12/08/00 110 Science Applications International Corp.

HM–111 6963624.05 2293266.53 10/10/95 3.2 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 05/04/02 430 Earth Tech Corporation

HM–113 6964677.00 2293133.60 01/20/96 120 Jacobs Engineering Group

HM–114 6963912.10 2294352.00 04/10/01 80 HydroGeoLogic, Inc.

HM–116 6966411.43 2294283.69 04/20/99 64 HydroGeoLogic, Inc.

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
Table A3 47

HM–118 6968035.19 2294780.47 10/14/02 4 Ellis Environmental Group

HM–119 6968726.00 2294271.80 05/02/00 1 U.S. Air Force, Center for Environmental Excellence

HM–120 6969489.04 2295343.23 05/01/03 0 Earth Tech Corporation

HM–121 6967390.20 2295279.20 11/07/95 0 Jacobs Engineering Group

HM–123 6961638.50 2295272.60 07/13/99 880 HydroGeoLogic, Inc.

HM–124 6963957.77 2295223.26 11/14/95 0 Jacobs Engineering Group

HM–126 6963121.05 2294300.23 10/15/02 110 Ellis Environmental Group

HM–127 6961588.47 2294853.29 05/01/03 0 Earth Tech Corporation

HM–13 6963100.15 2289898.00 10/25/95 0 Jacobs Engineering Group

HM–14 6963093.00 2289243.30 11/01/95 0 Jacobs Engineering Group

HM–17 6963993.31 2290451.65 10/31/95 27 Jacobs Engineering Group

HM–29 6966014.89 2290711.88 10/27/95 13 Jacobs Engineering Group

HM–31 6963114.44 2291505.33 10/12/00 170 U.S. Air Force, Center for Environmental Excellence

HM–36 6965484.00 2289786.00 10/16/00 55 U.S. Air Force, Center for Environmental Excellence

HM–56 6965454.00 2291472.23 11/17/95 0 Jacobs Engineering Group

HM–59 6966811.00 2291469.61 01/15/03 6.1 Earth Tech Corporation

HM–64 6966406.97 2291114.57 10/30/95 220 Jacobs Engineering Group

HM–7 6966159.99 2290135.86 01/27/00 0 U.S. Air Force, Center for Environmental Excellence

HM–71 6966470.35 2292457.39 10/14/95 16 Jacobs Engineering Group

HM–88 6964479.91 2291919.17 10/13/00 440 U.S. Air Force, Center for Environmental Excellence

HM–89 6964470.44 2292084.17 09/13/00 500 U.S. Air Force, Center for Environmental Excellence

HM–90 6965640.09 2292457.85 05/21/93 1.7 Jacobs Engineering Group

HM–91 6966174.30 2292586.29 06/04/93 15 Jacobs Engineering Group

HM–92 6965645.68 2292250.42 10/28/95 0 Jacobs Engineering Group

HM–93 6965074.75 2292194.39 05/01/03 0 Earth Tech Corporation

HM–95 6965442.59 2293156.22 05/01/03 1,258 Earth Tech Corporation

HM–96 6966507.03 2293168.95 01/15/03 .9 Earth Tech Corporation

HM–97 6966884.14 2293158.51 05/26/93 12 Jacobs Engineering Group

HM–98 6967418.95 2293207.55 05/01/03 0 Earth Tech Corporation

ITMW–01T 6961062.05 2298967.00 10/24/00 10 HydroGeoLogic, Inc.

LF01–1D 6964288.00 2301413.00 10/14/98 0 HydroGeoLogic, Inc.

LF01–1E 6964606.00 2301174.00 10/20/97 0 HydroGeoLogic, Inc.

LF03–3D 6962056.65 2293269.12 05/01/03 0 Earth Tech Corporation

LF04–01 6961026.99 2295378.56 12/06/01 0 HydroGeoLogic, Inc.

LF04–02 6961113.06 2296309.10 06/17/02 600 HydroGeoLogic, Inc.

LF04–03 6961064.00 2296306.00 11/05/99 750 HydroGeoLogic, Inc.

LF04–04 6960941.63 2297165.64 01/13/96 359 Law Environmental

LF04–10 6960411.83 2297078.91 04/23/97 1 CH2M Hill

LF04–4C 6960600.00 2296588.00 01/25/99 7 HydroGeoLogic, Inc.

LF04–4D 6960828.00 2296412.00 04/06/95 390 Law Environmental

LF05–01 6962728.35 2294577.83 01/28/99 450 HydroGeoLogic, Inc.

LF05–02 6962653.12 2295278.95 10/28/97 650 HydroGeoLogic, Inc.

LF05–18 6961555.64 2297075.43 04/24/97 364 CH2M Hill

LF05–19 6961239.89 2297461.35 04/23/97 822 CH2M Hill

LF05–5B 6961901.56 2296078.25 10/16/02 1,100 Ellis Environmental Group

LF05–5C 6961720.05 2295993.73 01/15/96 244 Law Environmental

LF05–5D 6961739.00 2295754.00 01/14/96 386 Law Environmental

LF05–5G 6961558.00 2296690.00 04/23/97 488 CH2M Hill

LF05–5H 6961732.39 2296340.79 06/20/02 500 HydroGeoLogic, Inc.

LSA1628–1 6967936.00 2297802.00 10/20/95 0 Law Environmental

LSA1628–2 6967943.00 2297847.00 10/21/95 0 Law Environmental

LSA1628–3 6967993.10 2297791.30 04/28/97 150 CH2M Hill

MW–10 6965836.22 2300542.00 10/30/97 0 HydroGeoLogic, Inc.

MW–11 6965707.00 2300792.00 10/24/97 0 HydroGeoLogic, Inc.

MW–12 6966149.32 2300142.00 08/22/01 0 Science Applications International Corp.

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
48 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

MW–19 6963513.00 2295369.00 08/22/01 41 Science Applications International Corp.

MW–38 6965981.00 2298153.00 12/04/01 0 HydroGeoLogic, Inc.

MW–5 6963910.00 2290826.00 10/25/01 0 U.S. Air Force, Center for Environmental Excellence

MW–50 6968529.00 2295622.00 07/22/96 0 Jacobs Engineering Group

MW–53 6964378.00 2296200.00 07/24/96 65 Jacobs Engineering Group

MW–5C 6965804.00 2300139.00 04/10/97 0 International Technology Corp.

MW–7CRSWL 6965967.00 2300055.00 08/22/01 0 Science Applications International Corp.

MW–8 6965584.95 2300492.00 01/10/96 0 Law Environmental

MW–9 6966001.79 2300330.00 10/20/97 0 HydroGeoLogic, Inc.

MW–IT–01T 6961062.00 2298967.00 11/05/98 7.85 Jacobs Engineering Group

MWMTAC–001 6959116.00 2296520.00 12/12/96 0 Jacobs Engineering Group

OT–15C 6963316.00 2300948.00 10/20/97 0 HydroGeoLogic, Inc.

RW–11U 6965385.00 2292586.20 07/30/94 1,300 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 1,800 U.S. Air Force, Center for Environmental Excellence

RW–3UR 6964444.10 2292090.10 12/14/00 440 U.S. Air Force, Center for Environmental Excellence

RW–8UR 6964339.00 2291990.60 12/14/00 510 U.S. Air Force, Center for Environmental Excellence

SD13–01 6963377.64 2300623.03 10/31/00 0 HydroGeoLogic, Inc.

SD13–02 6963472.80 2300754.49 10/27/00 0 HydroGeoLogic, Inc.

SD13–03 6963347.97 2300700.85 01/11/96 0 Law Environmental

SD13–04 6963346.39 2300773.06 10/31/00 0 HydroGeoLogic, Inc.

SD13–05 6963904.00 2300776.00 01/12/96 0 Law Environmental

SD13–06 6963164.35 2300908.00 06/26/01 0 HydroGeoLogic, Inc.

SD13–07 6963165.85 2301009.00 07/02/01 0 HydroGeoLogic, Inc.

SPOT35–2 6966175.00 2296854.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–3 6966109.00 2296851.00 12/03/01 0 HydroGeoLogic, Inc.

SPOT35–4 6966175.00 2296778.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–5 6966020.04 2296847.00 10/14/02 0 Ellis Environmental Group

SPOT35–8 6966428.55 2296970.16 04/07/00 43 HydroGeoLogic, Inc.

ST14–01 6963295.30 2300090.83 01/11/96 0 Law Environmental

ST14–02 6963511.64 2300091.66 01/13/96 0 Law Environmental

ST14–03 6964079.97 2299891.62 10/09/02 0 Ellis Environmental Group

ST14–04 6963642.65 2300345.31 01/13/96 0 Law Environmental

ST14–14 6964309.76 2299735.00 05/01/98 0 HydroGeoLogic, Inc.

ST14–24 6964018.00 2299061.45 10/12/99 0 HydroGeoLogic, Inc.

ST14–26 6964593.00 2299557.00 04/13/98 0 HydroGeoLogic, Inc.

ST14–27 6964258.00 2300212.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W05 6963726.00 2299094.00 10/10/02 0 Ellis Environmental Group

ST14–W06 6963807.00 2299331.00 01/11/96 0 Law Environmental

ST14–W07 6963615.00 2299394.00 01/12/96 0 Law Environmental

ST14–W08 6964324.00 2299480.00 01/12/96 0 Law Environmental

ST14–W09 6963472.00 2299550.00 10/18/95 7 Law Environmental

ST14–W11 6964129.00 2299658.00 10/27/00 0 HydroGeoLogic, Inc.

ST14–W13 6963695.00 2299776.00 01/11/96 0 Law Environmental

ST14–W15 6963316.00 2299923.00 05/01/03 1.8 Earth Tech Corporation

ST14–W16 6964065.00 2300128.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W21 6963418.00 2300242.00 10/31/00 0 HydroGeoLogic, Inc.

ST14–W31 6963550.00 2300831.00 10/12/99 0 HydroGeoLogic, Inc.

T8 6965421.00 2289949.00 01/14/02 2 U.S. Air Force, Center for Environmental Excellence

T9 6965551.00 2289993.00 11/19/01 11 U.S. Air Force, Center for Environmental Excellence

USGS01T 6970384.00 2297661.30 12/09/96 0 Jacobs Engineering Group

USGS02T 6970326.56 2300333.85 12/09/96 0 Jacobs Engineering Group

USGS03T 6968704.70 2300610.01 01/10/96 0 Law Environmental

USGS04T 6968758.00 2299178.00 10/09/02 0 Ellis Environmental Group

USGS06T 6963763.00 2297542.08 01/24/98 12 Jacobs Engineering Group

USGS07T 6960168.00 2295246.00 10/11/02 0 Ellis Environmental Group

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A3 49

VEP–10 6965452.00 2289741.00 05/07/02 2.4 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 26 Earth Tech Corporation

VEP–12 6965492.14 2289740.47 05/08/02 230 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/15/03 2,411 Shaw Environmental

VEP–14 6965532.35 2289740.23 05/08/02 280 Earth Tech Corporation

VEP–15 6965572.27 2289739.27 05/09/02 85 Earth Tech Corporation

VEP–16 6965593.48 2289739.28 05/09/02 12 Earth Tech Corporation

VEP–17 6965612.88 2289738.95 05/09/02 9.6 Earth Tech Corporation

VEP–18 6965631.89 2289739.19 05/09/02 740 Earth Tech Corporation

VEP–18B 6965652.25 2289740.40 05/09/02 540 Earth Tech Corporation

VEP–19 6965673.36 2289738.41 05/09/02 28 Earth Tech Corporation

VEP–20 6965692.62 2289738.81 05/10/02 18 Earth Tech Corporation

VEP–21 6965885.28 2289766.47 05/11/02 11 Earth Tech Corporation

VEP–22 6965904.64 2289772.36 05/11/02 26 Earth Tech Corporation

VEP–23 6965923.82 2289776.40 05/11/02 28 Earth Tech Corporation

VEP–24 6965947.42 2289785.33 05/11/02 270 Earth Tech Corporation

VEP–25 6965961.57 2289792.04 05/11/02 390 Earth Tech Corporation

VEP–26 6965979.44 2289801.00 05/11/02 34,000 Earth Tech Corporation

VEP–27 6965996.42 2289811.11 05/12/02 4,900 Earth Tech Corporation

VEP–28 6966006.35 2289828.89 05/12/02 580 Earth Tech Corporation

VEP–29 6966014.37 2289844.00 05/15/03 350,650 Shaw Environmental

VEP–3 6966027.00 2289825.00 05/12/02 890 Earth Tech Corporation

VEP–31 6966040.69 2289879.41 05/13/02 230 Earth Tech Corporation

VEP–32 6966058.55 2289884.99 05/13/02 39 Earth Tech Corporation

VEP–33 6966075.62 2289893.21 05/14/02 110 Earth Tech Corporation

VEP–35 6966114.00 2289901.00 05/15/03 616,800 Shaw Environmental

VEP–36 6966135.75 2289905.70 05/14/02 990 Earth Tech Corporation

VEP–37 6966155.08 2289906.66 05/14/02 400 Earth Tech Corporation

VEP–39 6966193.26 2289910.01 05/14/02 17 Earth Tech Corporation

VEP–4 6966050.33 2289838.40 05/12/02 7,600 Earth Tech Corporation

VEP–40 6966096.49 2289877.53 05/13/02 8.9 Earth Tech Corporation

VEP–41 6966067.00 2289850.00 05/13/02 2,000 Earth Tech Corporation

VEP–5 6965352.65 2289735.96 05/07/02 0 Earth Tech Corporation

VEP–6 6965371.63 2289740.48 05/07/02 0 Earth Tech Corporation

VEP–7 6965393.00 2289742.00 05/07/02 0 Earth Tech Corporation

VEP–8 6965413.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–9 6965432.00 2289741.00 05/07/02 1.2 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 23 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 20 Earth Tech Corporation

W–129 6965935.87 2289777.80 05/12/93 54 Jacobs Engineering Group

W–130 6966042.89 2289868.15 06/14/93 48,000 Jacobs Engineering Group

W–131L 6963276.81 2290536.11 10/19/91 0 Chem-Nuclear Geotech, Inc.

W–131U 6963278.00 2290541.00 10/24/91 0 Chem-Nuclear Geotech, Inc.

W–132 6966136.51 2289895.52 09/10/91 25 Chem-Nuclear Geotech, Inc.

W–133U 6963349.00 2290609.00 06/06/93 12 Jacobs Engineering Group

W–134 6969156.00 2291067.00 05/14/93 0 Jacobs Engineering Group

W–135 6967837.68 2290606.07 05/01/03 0 Earth Tech Corporation

W–137 6963499.00 2290968.00 01/25/97 83.6 Jacobs Engineering Group

W–141L 6965386.71 2290672.36 10/18/91 0 Chem-Nuclear Geotech, Inc.

W–141U 6965391.58 2290672.52 06/14/93 0 Jacobs Engineering Group

W–143 6968548.58 2291192.24 09/11/91 0 Chem-Nuclear Geotech, Inc.

W–144 6965577.00 2290450.00 10/17/91 0 Chem-Nuclear Geotech, Inc.

W–145 6964387.65 2290600.35 09/15/91 0 Chem-Nuclear Geotech, Inc.

W–146 6965118.51 2290620.30 05/09/93 0 Jacobs Engineering Group

W–147 6965824.00 2290711.00 01/15/03 17 Earth Tech Corporation

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
50 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

W–149 6965190.70 2292456.97 10/17/91 1,500 Chem-Nuclear Geotech, Inc.

W–151 6964980.90 2292475.30 09/13/91 28 Chem-Nuclear Geotech, Inc.

W–154 6963926.46 2290107.04 10/20/91 0 Chem-Nuclear Geotech, Inc.

W–155 6968275.39 2293145.82 01/15/03 0 Earth Tech Corporation

W–156 6964824.12 2292815.02 09/14/00 440 U.S. Air Force, Center for Environmental Excellence

W–158 6963954.83 2291080.82 09/14/91 18 Chem-Nuclear Geotech, Inc.

W–160 6963448.68 2291368.51 01/24/97 454 Jacobs Engineering Group

WCHMHTA004 6967949.00 2295041.00 09/26/01 2 Science Applications International Corp.

WCHMHTA006 6966690.11 2295406.97 04/11/02 77 Ellis Environmental Group

WCHMHTA008 6967889.89 2295597.48 05/01/03 73 Earth Tech Corporation

WCHMHTA009 6968444.69 2296663.99 10/31/00 8 HydroGeoLogic, Inc.

WCHMHTA010 6967640.08 2296398.80 04/11/02 11 Ellis Environmental Group

WCHMHTA011 6969295.20 2297328.38 09/26/01 5 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 5.2 Earth Tech Corporation

WCHMHTA014 6970403.90 2294072.81 10/14/02 0 Ellis Environmental Group

WCOETA002 6962944.00 2296763.00 07/01/02 29 U.S. Geological Survey

WCOETA004 6962828.00 2296675.00 07/01/01 55 U.S. Geological Survey

WCOETA006 6962928.00 2296921.00 07/01/02 31 U.S. Geological Survey

WCOETA010 6962696.00 2296798.00 05/01/99 150 U.S. Geological Survey

WHGLFE001 6961575.00 2296063.00 06/19/02 400 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 500 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 890 HydroGeoLogic, Inc.

WHGLFE004 6960785.00 2295825.00 06/19/02 18 HydroGeoLogic, Inc.

WHGLRW015 6960871.43 2298662.64 10/24/00 17 HydroGeoLogic, Inc.

WHGLRW016 6961034.95 2299201.47 10/16/02 0 Ellis Environmental Group

WHGLRW017 6960727.11 2299000.59 04/19/02 0 Ellis Environmental Group

WHGLRW018 6960532.93 2298744.63 11/01/99 0 HydroGeoLogic, Inc.

WHGLRW019 6960684.23 2298620.19 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA003 6961043.88 2298029.84 01/23/98 61 HydroGeoLogic, Inc.

WHGLTA004 6962943.38 2295760.62 01/27/99 180 HydroGeoLogic, Inc.

WHGLTA005 6963470.00 2301044.00 10/18/99 0 HydroGeoLogic, Inc.

WHGLTA007 6963162.51 2301093.11 06/26/01 0 HydroGeoLogic, Inc.

WHGLTA008 6963955.17 2300016.84 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA009 6965211.65 2297528.70 10/31/00 260 HydroGeoLogic, Inc.

WHGLTA010 6965580.03 2296770.93 04/07/00 4 HydroGeoLogic, Inc.

WHGLTA011 6968356.67 2295873.87 07/13/00 0 HydroGeoLogic, Inc.

WHGLTA012 6965920.84 2297740.00 04/10/02 18 Ellis Environmental Group

WHGLTA013 6965958.00 2297177.00 12/04/01 0 HydroGeoLogic, Inc.

WHGLTA014 6966295.34 2297373.92 10/27/00 110 HydroGeoLogic, Inc.

WHGLTA020 6962285.83 2299684.95 11/05/99 0 HydroGeoLogic, Inc.

WHGLTA022 6960401.65 2297691.54 11/03/99 0 HydroGeoLogic, Inc.

WHGLTA023 6960492.16 2298565.43 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA025 6961608.26 2298942.63 04/06/00 4 HydroGeoLogic, Inc.

WHGLTA028 6967761.00 2297451.00 10/11/02 230 Ellis Environmental Group

WHGLTA029 6965736.00 2298574.00 11/28/01 3 HydroGeoLogic, Inc.

WHGLTA043 6961771.99 2297021.32 04/18/02 290 Ellis Environmental Group

WHGLTA044 6961721.40 2297347.37 01/04/01 5 HydroGeoLogic, Inc.

WHGLTA045 6961321.90 2298368.80 10/20/00 9 HydroGeoLogic, Inc.

WHGLTA046 6961298.49 2296089.68 02/26/02 480 HydroGeoLogic, Inc.

WHGLTA048 6960916.20 2298714.83 05/01/03 108 Earth Tech Corporation

WHGLTA049 6962329.24 2299269.36 10/17/02 0 Ellis Environmental Group

WHGLTA050 6963013.36 2296420.09 04/06/01 31 HydroGeoLogic, Inc.

WHGLTA051 6962894.90 2296247.12 10/16/02 67 Ellis Environmental Group

WHGLTA052 6962769.45 2296098.07 04/06/01 61 HydroGeoLogic, Inc.

WHGLTA053 6960334.00 2295474.00 12/05/01 0 HydroGeoLogic, Inc.

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A3 51

WHGLTA054 6960748.26 2295541.09 10/11/02 43 Ellis Environmental Group

WHGLTA055 6960809.82 2295662.85 10/11/02 0 Ellis Environmental Group

WHGLTA056 6960787.36 2295827.62 05/05/03 190 HydroGeoLogic, Inc.

WHGLTA060 6965619.32 2298210.18 09/25/01 48 HydroGeoLogic, Inc.

WHGLTA061 6965621.74 2298341.01 11/27/01 0 HydroGeoLogic, Inc.

WHGLTA062 6965663.00 2298317.27 07/20/01 12 HydroGeoLogic, Inc.

WHGLTA063 6965677.07 2298270.14 07/20/01 8 HydroGeoLogic, Inc.

WHGLTA064 6965075.48 2298351.15 11/28/01 57 HydroGeoLogic, Inc.

WHGLTA065 6960593.00 2295633.00 12/06/01 310 HydroGeoLogic, Inc.

WHGLTA066 6960807.00 2295402.00 12/02/01 0 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 13 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 06/18/02 600 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 05/05/03 430 HydroGeoLogic, Inc.

WHGLTA071 6961285.00 2296067.00 06/18/02 330 HydroGeoLogic, Inc.

WHGLTA072 6961283.00 2296102.00 05/05/03 340 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 06/18/02 190 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 06/18/02 410 HydroGeoLogic, Inc.

WHGLTA075 6961072.00 2295934.00 06/17/02 1,000 HydroGeoLogic, Inc.

WHGLTA076 6961086.00 2295934.00 05/05/03 620 HydroGeoLogic, Inc.

WHGLTA077 6960785.00 2295776.00 05/05/03 480 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 11 Ellis Environmental Group

WHGLTA101 6964634.00 2301220.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA102 6964449.00 2301388.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA103 6964314.53 2301522.24 06/02/99 0 HydroGeoLogic, Inc.

WHGLTA104 6964226.00 2301608.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA201 6963198.14 2298660.88 12/09/98 4 HydroGeoLogic, Inc.

WHGLTA202 6963326.21 2298832.59 12/14/98 2 HydroGeoLogic, Inc.

WHGLTA203 6963059.00 2298401.00 05/13/98 20 HydroGeoLogic, Inc.

WHGLTA204 6963625.62 2298104.66 09/23/98 8 HydroGeoLogic, Inc.

WHGLTA302 6962603.00 2294422.00 09/29/98 2,300 HydroGeoLogic, Inc.

WHGLTA303 6962351.00 2294401.00 05/08/98 1,100 HydroGeoLogic, Inc.

WHGLTA601 6962753.00 2297473.69 10/05/99 39 HydroGeoLogic, Inc.

WHGLTA602 6962752.66 2297625.01 09/25/98 39 HydroGeoLogic, Inc.

WHGLTA603 6962713.38 2297727.19 09/25/98 9 HydroGeoLogic, Inc.

WHGLTA604 6963195.00 2297530.00 09/24/98 23 HydroGeoLogic, Inc.

WHGLTA701 6961835.73 2295332.86 09/28/98 920 HydroGeoLogic, Inc.

WHGLTA702 6961920.00 2295882.00 09/28/98 580 HydroGeoLogic, Inc.

WHGLTA703 6961680.70 2295741.23 02/21/01 530 HydroGeoLogic, Inc.

WHGLTA704 6962141.07 2295831.51 09/24/98 38 HydroGeoLogic, Inc.

WHGLTA705 6962003.00 2296027.00 06/01/00 30 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 07/13/00 20 HydroGeoLogic, Inc.

WHGLTA707 6962188.16 2295592.35 02/19/01 3 HydroGeoLogic, Inc.

WHGLTA708 6962019.93 2295647.18 02/19/01 15 HydroGeoLogic, Inc.

WHGLTA709 6961934.71 2295750.93 02/19/01 160 HydroGeoLogic, Inc.

WHGLTA801 6962790.06 2295857.80 04/06/01 200 HydroGeoLogic, Inc.

WHGLTA901 6967832.00 2299643.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA902 6967671.00 2299952.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA903 6967830.00 2300086.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA904 6968031.00 2300174.00 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA905 6967574.00 2299782.00 10/11/99 0 HydroGeoLogic, Inc.

WINTTA022 6964617.36 2292408.66 09/13/00 370 U.S. Air Force, Center for Environmental Excellence

WINTTA027 6964477.66 2291931.10 12/20/00 0 U.S. Air Force, Center for Environmental Excellence

WITCTA001 6969592.01 2296447.73 04/28/97 0 International Technology Corp.

WITCTA002 6969259.49 2296136.48 05/06/97 0 International Technology Corp.

WITCTA003 6969112.00 2297406.00 10/09/02 0 Ellis Environmental Group

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
52 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WITCTA004 6968940.00 2297491.00 10/08/02 21 Ellis Environmental Group

WITCTA005 6968459.46 2298167.79 04/28/97 93 International Technology Corp.

WITCTA006 6968427.00 2298263.00 05/02/97 110 International Technology Corp.

WITCTA007 6968310.56 2298433.07 04/22/97 57 International Technology Corp.

WITCTA009 6967862.00 2298234.00 08/23/01 20 Science Applications International Corp.

WITCTA010 6967695.00 2298753.00 04/04/00 2 HydroGeoLogic, Inc.

WITCTA012 6967348.77 2298224.39 08/23/01 98 Science Applications International Corp.

WITCTA013 6967017.00 2297752.00 04/28/97 50 International Technology Corp.

WITCTA014 6966904.57 2297418.51 08/23/01 41 Science Applications International Corp.

WITCTA015 6966333.00 2298395.00 04/23/97 240 International Technology Corp.

WITCTA016 6966239.00 2298062.00 07/20/99 150 HydroGeoLogic, Inc.

WITCTA017 6967298.15 2299305.78 10/17/02 17 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 1 Ellis Environmental Group

WITCTA020 6963895.32 2296316.79 04/29/97 0 International Technology Corp.

WITCTA021 6963795.40 2298719.16 05/01/97 0 International Technology Corp.

WITCTA024 6965971.78 2298956.02 10/09/02 0 Ellis Environmental Group

WITCTA025 6966005.00 2299534.00 04/09/02 100 Ellis Environmental Group

WITCTA026 6965458.00 2299481.00 04/19/02 0 Ellis Environmental Group

WITCTA027 6965194.74 2299511.86 04/24/97 0 International Technology Corp.

WITCTA028 6965161.00 2300621.00 04/24/97 0 International Technology Corp.

WITCTA032 6964501.67 2299196.64 04/30/97 0 International Technology Corp.

WITCTA033 6964388.00 2300520.00 04/30/97 0 International Technology Corp.

WITCTA034 6963956.68 2300951.49 04/30/97 0 International Technology Corp.

WITCTA036 6963182.00 2299629.00 05/02/97 0 International Technology Corp.

WITCTA037 6963424.00 2297784.00 04/29/97 8 International Technology Corp.

WITCTA039 6962339.77 2295415.41 05/01/97 210 International Technology Corp.

WITCTA040 6963260.00 2299515.00 05/01/03 71 Earth Tech Corporation

WITCTA041 6963169.00 2299642.00 10/09/02 0 Ellis Environmental Group

WITCTA043 6963110.00 2299725.00 10/10/02 0 Ellis Environmental Group

WITCTA044 6963056.00 2299836.00 10/06/99 0 HydroGeoLogic, Inc.

WJETA043 6964667.72 2292227.72 09/12/00 350 U.S. Air Force, Center for Environmental Excellence

WJETA047 6964393.06 2292176.36 09/13/00 350 U.S. Air Force, Center for Environmental Excellence

WJETA060 6963892.00 2290889.00 05/01/03 0 Earth Tech Corporation

WJETA061 6963915.00 2290873.00 05/03/02 0 Earth Tech Corporation

WJETA083 6964204.32 2292903.92 12/20/00 250 U.S. Air Force, Center for Environmental Excellence

WJETA086 6965443.05 2292457.02 12/14/00 59 U.S. Air Force, Center for Environmental Excellence

WJETA087 6964208.00 2293100.00 09/14/00 200 U.S. Air Force, Center for Environmental Excellence

WJETA088 6964424.00 2293106.00 09/14/00 110 U.S. Air Force, Center for Environmental Excellence

WJETA501 6962953.00 2296722.00 06/01/98 81.8 U.S. Geological Survey

WJETA502 6962955.00 2296726.00 06/01/98 100.5 U.S. Geological Survey

WJETA503 6962957.00 2296723.00 06/01/98 101.5 U.S. Geological Survey

WJETA504 6962911.00 2296817.00 06/01/98 93.8 U.S. Geological Survey

WJETA505 6962911.00 2296820.00 06/01/98 93.8 U.S. Geological Survey

WJETA507 6962835.00 2296843.00 06/01/98 80.4 U.S. Geological Survey

WJETA508 6962836.00 2296841.00 05/01/99 98 U.S. Geological Survey

WJETA509 6962837.00 2296842.00 05/01/99 98 U.S. Geological Survey

WJETA510 6962680.00 2296812.00 07/01/00 140 U.S. Geological Survey

WJETA511 6962679.00 2296809.00 01/01/00 130 U.S. Geological Survey

WJETA512 6962682.00 2296810.00 06/01/98 294.8 U.S. Geological Survey

WJETA513 6962998.00 2296754.00 06/01/98 167.5 U.S. Geological Survey

WJETA514 6962864.00 2296751.00 05/01/99 148 U.S. Geological Survey

WJETA515 6962863.00 2296894.00 06/01/98 154.1 U.S. Geological Survey

WJETA516 6962969.00 2296860.00 06/01/98 536 U.S. Geological Survey

WJETA517 6962866.00 2296714.00 06/01/98 113.9 U.S. Geological Survey

WJETA518 6962950.00 2296714.00 05/01/99 97 U.S. Geological Survey

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A3 53

WJETA519 6962842.00 2296754.00 06/01/98 100.5 U.S. Geological Survey

WJETA520 6962879.00 2296810.00 06/01/98 147.4 U.S. Geological Survey

WJETA521 6962921.00 2296867.00 06/01/98 140.7 U.S. Geological Survey

WJETA522 6962871.00 2296834.00 06/01/98 140.7 U.S. Geological Survey

WJETA523 6962887.00 2296845.00 06/01/98 201 U.S. Geological Survey

WJETA524 6962818.00 2296807.00 06/01/98 154.1 U.S. Geological Survey

WJETA525 6962800.00 2296820.00 05/01/99 162 U.S. Geological Survey

WJETA526 6962778.00 2296826.00 05/01/99 103 U.S. Geological Survey

WJETA527 6962856.00 2296937.00 07/01/00 150 U.S. Geological Survey

WJETA528 6962815.00 2296880.00 07/01/00 180 U.S. Geological Survey

WJETA529 6962759.00 2296997.00 05/01/99 138 U.S. Geological Survey

WJETA530 6959546.93 2296533.87 12/14/96 0 Jacobs Engineering Group

WJETA531 6958909.00 2295894.00 12/08/96 0 Jacobs Engineering Group

WJETA534 6958941.15 2296341.54 12/14/96 0 Jacobs Engineering Group

WJETA535 6959722.27 2296794.44 10/26/00 0 HydroGeoLogic, Inc.

WL–090JETA 6963983.92 2291896.50 07/28/98 225 Jacobs Engineering Group

WL–091JETA 6964268.00 2291919.00 09/12/00 450 U.S. Air Force, Center for Environmental Excellence

WL–101JETA 6965358.00 2292299.00 12/12/00 550 U.S. Air Force, Center for Environmental Excellence

WL–102JETA 6964785.97 2292815.37 01/22/01 280 U.S. Air Force, Center for Environmental Excellence

WL–104JETA 6964423.59 2292886.41 12/13/00 240 U.S. Air Force, Center for Environmental Excellence

WL–105JETA 6963929.81 2293101.42 12/13/00 180 U.S. Air Force, Center for Environmental Excellence

WL–106JETA 6963806.49 2293001.85 12/13/00 290 U.S. Air Force, Center for Environmental Excellence

WL–107JETA 6964701.29 2292815.04 12/13/00 370 U.S. Air Force, Center for Environmental Excellence

WL–111JETA 6965121.90 2292395.25 12/12/00 1,200 U.S. Air Force, Center for Environmental Excellence

WL–112JETA 6965174.34 2292533.25 12/20/00 0 U.S. Air Force, Center for Environmental Excellence

WL–113JETA 6964978.06 2292461.75 12/12/00 86 U.S. Air Force, Center for Environmental Excellence

WL–115JETA 6964589.06 2292916.26 01/22/01 310 U.S. Air Force, Center for Environmental Excellence

WL–116JETA 6964025.89 2292914.56 12/13/00 190 U.S. Air Force, Center for Environmental Excellence

WL–117JETA 6963947.23 2293003.37 12/13/00 290 U.S. Air Force, Center for Environmental Excellence

WL–118JETA 6964485.69 2292811.17 12/13/00 310 U.S. Air Force, Center for Environmental Excellence

WL–119JETA 6964313.78 2292916.79 01/22/01 240 U.S. Air Force, Center for Environmental Excellence

WL–120JETA 6964237.93 2293001.62 01/22/01 270 U.S. Air Force, Center for Environmental Excellence

WL–121JETA 6963866.38 2293059.70 12/13/00 310 U.S. Air Force, Center for Environmental Excellence

WL–122JETA 6964091.58 2293038.73 12/13/00 360 U.S. Air Force, Center for Environmental Excellence

WL–124AJETA 6965108.00 2292368.00 01/22/01 310 U.S. Air Force, Center for Environmental Excellence

WL–127JETA 6964804.08 2292467.36 12/12/00 75 U.S. Air Force, Center for Environmental Excellence

WL–150JETA 6964352.32 2291866.76 12/12/00 250 U.S. Air Force, Center for Environmental Excellence

WL–153JETA 6964329.24 2291906.43 12/12/00 240 U.S. Air Force, Center for Environmental Excellence

WL–155JETA 6964315.00 2291929.84 12/12/00 310 U.S. Air Force, Center for Environmental Excellence

WL–158JETA 6964300.36 2291955.82 12/12/00 140 U.S. Air Force, Center for Environmental Excellence

WL–160JETA 6964290.24 2291969.86 12/20/00 490 U.S. Air Force, Center for Environmental Excellence

WL–161JETA 6964284.87 2291981.87 12/12/00 180 U.S. Air Force, Center for Environmental Excellence

WL–163JETA 6964274.54 2291998.95 12/12/00 180 U.S. Air Force, Center for Environmental Excellence

WL–164JETA 6964269.73 2292007.70 12/12/00 230 U.S. Air Force, Center for Environmental Excellence

WL–165JETA 6964259.62 2292024.31 12/12/00 400 U.S. Air Force, Center for Environmental Excellence

WL–166JETA 6964264.16 2292015.93 12/12/00 290 U.S. Air Force, Center for Environmental Excellence

WL–167JETA 6964254.13 2292033.79 12/12/00 370 U.S. Air Force, Center for Environmental Excellence

WL–169JETA 6964244.25 2292050.42 12/12/00 430 U.S. Air Force, Center for Environmental Excellence

WL–171JETA 6964233.96 2292067.54 12/12/00 110 U.S. Air Force, Center for Environmental Excellence

WL–174JETA 6964219.01 2292093.61 12/12/00 24 U.S. Air Force, Center for Environmental Excellence

WL–177JETA 6964202.14 2292120.93 12/12/00 16 U.S. Air Force, Center for Environmental Excellence

WL–106PJETA 6964408.57 2291918.53 09/12/00 450 U.S. Air Force, Center for Environmental Excellence

WL–107PJETA 6964270.67 2292104.81 09/12/00 36 U.S. Air Force, Center for Environmental Excellence

WL–111PJETA 6965503.53 2292457.25 09/12/00 47 U.S. Air Force, Center for Environmental Excellence

WL–112PJETA 6965552.59 2292611.65 09/14/00 18 U.S. Air Force, Center for Environmental Excellence

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
54 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WL–113PJETA 6963992.83 2293299.90 09/13/00 240 U.S. Air Force, Center for Environmental Excellence

WL–114PJETA 6963706.19 2292811.25 09/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–115PJETA 6964132.59 2292806.95 09/13/00 290 U.S. Air Force, Center for Environmental Excellence

WL–116PJETA 6964862.56 2292604.32 09/14/00 190 U.S. Air Force, Center for Environmental Excellence

WP07–10B 6961277.46 2296040.45 01/22/99 500 HydroGeoLogic, Inc.

WSAICTA002 6964473.05 2294921.57 12/14/00 1 Science Applications International Corp.

WSAICTA003 6962921.08 2294630.39 12/11/00 500 Science Applications International Corp.

WSAICTA004 6963343.80 2293586.34 12/14/00 23 Science Applications International Corp.

WSAICTA005 6963578.03 2293587.28 12/14/00 86 Science Applications International Corp.

WSAICTA007 6961971.36 2294861.23 09/27/01 357 Science Applications International Corp.

WSAICTA008 6961974.34 2294585.80 04/11/02 100 Ellis Environmental Group

WSAICTA010 6962655.14 2294341.87 04/11/02 230 Ellis Environmental Group

WSAICTA014 6963885.00 2293582.00 09/25/01 103 Science Applications International Corp.

WSAICTA015 6966805.36 2299042.92 09/24/01 12 Science Applications International Corp.

WSAICTA016 6966551.89 2299049.00 05/01/03 110 Earth Tech Corporation

WSAICTA017 6966921.03 2298810.34 09/24/01 0 Science Applications International Corp.

WSAICTA021 6966905.72 2299748.32 10/03/01 0 Science Applications International Corp.

WSAICTA023 6967077.62 2298656.36 10/17/02 100 Earth Tech Corporation

WSAICTA025 6961666.49 2294798.23 10/03/01 2 Science Applications International Corp.

WSAICTA026 6961723.12 2294432.29 06/21/02 0 Science Applications International Corp.

WUSGSTA001 6962644.00 2297002.00 06/01/98 80.4 U.S. Geological Survey

WUSGSTA002 6962263.00 2296964.00 02/01/98 0 U.S. Geological Survey

WUSGSTA003 6961872.00 2296987.00 06/01/98 3.9 U.S. Geological Survey

WUSGSTA004 6962085.00 2297504.00 06/01/98 87.1 U.S. Geological Survey

WUSGSTA005 6961955.00 2297925.00 02/01/98 5.15 U.S. Geological Survey

WUSGSTA006 6961670.00 2298251.00 02/01/98 3.95 U.S. Geological Survey

WUSGSTA007 6962684.00 2298206.00 02/01/98 65 U.S. Geological Survey

WUSGSTA008 6962636.00 2296832.00 06/01/98 21.1 U.S. Geological Survey

WUSGSTA009 6962766.00 2296661.00 02/01/98 195 U.S. Geological Survey

WUSGSTA010 6962707.00 2296719.00 02/01/98 140 U.S. Geological Survey

WUSGSTA011 6962668.00 2296825.00 06/01/98 140.7 U.S. Geological Survey

WUSGSTA012 6962787.00 2297104.00 05/01/99 83 U.S. Geological Survey

WUSGSTA013 6962745.00 2297215.00 02/01/98 55 U.S. Geological Survey

WUSGSTA014 6962826.00 2297306.00 06/01/98 67 U.S. Geological Survey

WUSGSTA015 6963054.00 2296591.00 02/01/98 112.5 U.S. Geological Survey

WUSGSTA016 6963036.00 2296370.00 02/01/98 110 U.S. Geological Survey

WUSGSTA017 6962675.00 2296815.00 06/01/98 154.1 U.S. Geological Survey

WUSGSTA018 6962566.00 2297413.00 06/01/98 80.4 U.S. Geological Survey

WUSGSTA019 6963009.00 2297050.00 02/01/98 65 U.S. Geological Survey

WUSGSTA020 6962722.00 2296818.00 06/01/98 160.8 U.S. Geological Survey

WUSGSTA021 6962659.00 2296814.00 05/01/99 241 U.S. Geological Survey

WUSGSTA022 6962736.00 2296740.00 06/01/98 174.2 U.S. Geological Survey

WUSGSTA023 6962638.00 2296810.00 02/01/98 4.78 U.S. Geological Survey

W7TAITC 6966050.00 2290097.00 01/26/00 3,400 U.S. Air Force, Center for Environmental Excellence

W9AWNITC 6965921.00 2289851.00 01/24/00 11,000 U.S. Air Force, Center for Environmental Excellence

W9WNITC 6965916.00 2289859.00 10/16/99 0 U.S. Air Force, Center for Environmental Excellence

Table A3. Maximum historical cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A4 55

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source

1–A 6964505.00 2300900.00 03/05/85 0 Radian Corporation

1–B 6964685.00 2301062.00 10/15/97 0 HydroGeoLogic, Inc.

1–C 6964450.00 2301255.00 03/05/85 0 Radian Corporation

5–B 6962558.83 2295444.82 03/05/85 0 Radian Corporation

BGSMW01 6964916.00 2299511.00 04/09/97 0 International Technology Corp.

BSS–A 6965476.60 2300120.78 01/10/96 0 Law Environmental

BSS–B 6965797.63 2300091.88 01/15/96 0 Law Environmental

CAR–RW1 6960869.00 2296755.00 09/16/99 51 HydroGeoLogic, Inc.

CAR–RW10 6961279.06 2296078.88 09/16/99 49 HydroGeoLogic, Inc.

CAR–RW11 6961412.39 2296075.74 09/16/99 66 HydroGeoLogic, Inc.

CAR–RW12 6961192.46 2295933.72 09/16/99 65 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 09/16/99 63 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 09/17/99 38 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 09/16/99 85 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 09/17/99 45 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 09/16/99 54 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 09/17/99 39 HydroGeoLogic, Inc.

F–204 6965223.00 2290634.70 11/10/95 0 Jacobs Engineering Group

F–209 6969007.27 2290901.72 05/01/03 0 Earth Tech Corporation

F–214 6966040.04 2289864.00 10/24/02 1,700 Earth Tech Corporation

F–216 6965776.18 2290219.93 10/08/95 0 Jacobs Engineering Group

F–217 6965959.98 2290109.05 01/27/00 10 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.29 2291474.21 05/06/01 36 U.S. Air Force, Center for Environmental Excellence

F–219 6964343.31 2291472.82 10/30/95 0 Jacobs Engineering Group

F–220 6964050.32 2290236.60 11/13/95 0 Jacobs Engineering Group

F–221 6963244.60 2290575.22 10/27/95 0 Jacobs Engineering Group

FSA–3–03 6969021.17 2290678.81 11/10/95 0 Jacobs Engineering Group

FSA–3–04 6969021.23 2290632.44 11/10/95 0 Jacobs Engineering Group

FSA–3–06 6969077.00 2290679.76 11/16/95 0 Jacobs Engineering Group

FSA–3–08 6969116.51 2290712.86 11/14/95 0 Jacobs Engineering Group

FSA–3–10 6969075.75 2290779.47 11/14/95 0 Jacobs Engineering Group

FSA–3–12 6968999.05 2290836.80 11/13/95 0 Jacobs Engineering Group

FT08–11A 6962321.00 2295878.00 02/16/01 0 HydroGeoLogic, Inc.

FT08–11B 6962034.00 2295931.00 04/12/95 12 Law Environmental

FT09–12A 6960549.82 2295439.22 12/05/01 0 HydroGeoLogic, Inc.

FT09–12B 6960709.31 2295697.41 02/21/01 7 HydroGeoLogic, Inc.

FT09–12C 6960590.30 2295771.51 01/24/97 3 CH2M Hill

FT09–12E 6960701.08 2295821.16 12/05/01 5 HydroGeoLogic, Inc.

GMI–02M 6964661.03 2288826.22 10/06/95 0 Jacobs Engineering Group

GMI–04–01M 6960931.00 2296729.00 10/29/97 41 HydroGeoLogic, Inc.

GMI–05M 6964307.19 2288362.92 10/05/95 0 Jacobs Engineering Group

GMI–22–01M 6965122.22 2297689.15 07/16/95 0 Law Environmental

GMI–22–02M 6966633.00 2296187.00 05/01/03 0 Earth Tech Corporation

GMI–22–03M 6966219.92 2298539.37 05/01/03 77 Earth Tech Corporation

GMI–22–04M 6967250.52 2297341.00 04/30/97 15 CH2M Hill

GMI–22–05M 6966940.33 2299432.08 05/01/03 0 Earth Tech Corporation

GMI–22–06M 6967004.48 2298186.58 04/27/98 110 HydroGeoLogic, Inc.

GMI–22–07M 6969019.00 2298323.00 05/01/03 0 Earth Tech Corporation

GMI–22–08M 6970324.00 2298972.00 01/11/96 0 Law Environmental

HM–10 6965810.91 2290121.80 04/29/95 1.1 Jacobs Engineering Group

Table A4

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
56 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

HM–101 6964442.18 2288886.61 04/18/86 0 Radian Corporation

HM–104 6963114.28 2291200.56 01/19/96 0 Jacobs Engineering Group

HM–106 6968075.70 2290771.26 10/24/95 0 Jacobs Engineering Group

HM–11 6963091.76 2290932.28 08/29/83 1,000 Hargis + Associates

HM–110 6963667.53 2293163.24 10/13/99 1 HydroGeoLogic, Inc.

HM–111 6963624.05 2293266.53 10/10/95 0 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 04/06/00 5 HydroGeoLogic, Inc.

HM–113 6964677.00 2293133.60 01/20/96 480 Jacobs Engineering Group

HM–114 6963912.10 2294352.00 04/11/02 1 Ellis Environmental Group

HM–116 6966411.43 2294283.69 10/18/99 1 HydroGeoLogic, Inc.

HM–118 6968035.19 2294780.47 10/14/02 0 Ellis Environmental Group

HM–119 6968726.00 2294271.80 05/01/03 0 Earth Tech Corporation

HM–12 6963088.53 2290396.72 02/14/86 0 Radian Corporation

HM–120 6969489.04 2295343.23 05/01/03 0 Earth Tech Corporation

HM–121 6967390.20 2295279.20 11/07/95 0 Jacobs Engineering Group

HM–123 6961638.50 2295272.60 01/27/99 24 HydroGeoLogic, Inc.

HM–124 6963957.77 2295223.26 11/14/95 0 Jacobs Engineering Group

HM–126 6963121.05 2294300.23 04/03/01 3 HydroGeoLogic, Inc.

HM–127 6961588.47 2294853.29 05/01/03 0 Earth Tech Corporation

HM–13 6963100.15 2289898.00 10/25/95 0 Jacobs Engineering Group

HM–14 6963093.00 2289243.30 11/01/95 0 Jacobs Engineering Group

HM–16 6964155.13 2290241.53 04/05/86 0 Radian Corporation

HM–17 6963993.31 2290451.65 10/31/95 0 Jacobs Engineering Group

HM–23 6963113.58 2288752.31 04/05/86 0 Radian Corporation

HM–29 6966014.89 2290711.88 04/02/86 25 Radian Corporation

HM–31 6963114.44 2291505.33 10/21/02 11 Earth Tech Corporation

HM–36 6965484.00 2289786.00 10/28/99 3 U.S. Air Force, Center for Environmental Excellence

HM–56 6965454.00 2291472.23 03/20/85 35 Hargis + Associates

HM–59 6966811.00 2291469.61 01/15/03 0 Earth Tech Corporation

HM–64 6966406.97 2291114.57 10/11/85 1 Radian Corporation

HM–7 6966159.99 2290135.86 01/27/00 1 U.S. Air Force, Center for Environmental Excellence

HM–71 6966470.35 2292457.39 02/03/86 74.5 Radian Corporation

HM–88 6964479.91 2291919.17 11/07/98 23.3 Jacobs Engineering Group

HM–90 6965640.09 2292457.85 05/21/93 0 Jacobs Engineering Group

HM–91 6966174.30 2292586.29 06/04/93 0 Jacobs Engineering Group

HM–92 6965645.68 2292250.42 10/28/95 0 Jacobs Engineering Group

HM–93 6965074.75 2292194.39 05/01/03 0 Earth Tech Corporation

HM–95 6965442.59 2293156.22 10/24/01 1 U.S. Air Force, Center for Environmental Excellence

HM–96 6965442.59 2293156.22 01/15/03 1.2 Earth Tech Corporation

HM–97 6966507.03 2293168.95 05/26/93 0 Jacobs Engineering Group

HM–98 6966884.14 2293158.51 05/01/03 0 Earth Tech Corporation

ITMW–01T 6967418.95 2293207.55 10/08/98 1 HydroGeoLogic, Inc.

LF01–1D 6961062.05 2298967.00 10/14/98 0 HydroGeoLogic, Inc.

LF01–1E 6964288.00 2301413.00 10/20/97 0 HydroGeoLogic, Inc.

LF03–3D 6964606.00 2301174.00 05/01/03 0 Earth Tech Corporation

LF04–01 6962056.65 2293269.12 12/06/01 0 HydroGeoLogic, Inc.

LF04–02 6961026.99 2295378.56 03/26/01 38 HydroGeoLogic, Inc.

LF04–03 6961113.06 2296309.10 09/16/99 53 HydroGeoLogic, Inc.

LF04–04 6961064.00 2296306.00 01/13/96 0 Law Environmental

LF04–10 6960941.63 2297165.64 05/01/03 0 Earth Tech Corporation

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A4 57

LF04–4C 6960411.83 2297078.91 04/13/99 2 HydroGeoLogic, Inc.

LF04–4D 6960600.00 2296588.00 05/05/03 3.5 HydroGeoLogic, Inc.

LF05–01 6960828.00 2296412.00 01/28/99 13 HydroGeoLogic, Inc.

LF05–02 6962728.35 2294577.83 01/13/96 57 Law Environmental

LF05–18 6962653.12 2295278.95 10/29/97 41 HydroGeoLogic, Inc.

LF05–19 6961555.64 2297075.43 01/25/97 15 CH2M Hill

LF05–5B 6961239.89 2297461.35 10/16/02 26 Ellis Environmental Group

LF05–5D 6961901.56 2296078.25 01/14/96 67 Law Environmental

LF05–5G 6961739.00 2295754.00 10/25/00 36 HydroGeoLogic, Inc.

LF05–5H 6961558.00 2296690.00 06/20/02 140 HydroGeoLogic, Inc.

LSA1628–1 6961732.39 2296340.79 10/20/95 0 Law Environmental

LSA1628–2 6967936.00 2297802.00 01/15/96 52 Law Environmental

LSA1628–3 6967943.00 2297847.00 07/19/99 67 HydroGeoLogic, Inc.

MW–10 6967993.10 2297791.30 10/30/97 0 HydroGeoLogic, Inc.

MW–11 6965836.22 2300542.00 10/24/97 0 HydroGeoLogic, Inc.

MW–12 6965707.00 2300792.00 08/22/01 0 Science Applications International Corp.

MW–19 6966149.32 2300142.00 08/22/01 1 Science Applications International Corp.

MW–38 6963513.00 2295369.00 12/04/01 0 HydroGeoLogic, Inc.

MW–5 6965981.00 2298153.00 10/16/00 0 U.S. Air Force, Center for Environmental Excellence

MW–5 6963910.00 2290826.00 10/25/01 0 U.S. Air Force, Center for Environmental Excellence

MW–50 6968529.00 2295622.00 07/22/96 0 Jacobs Engineering Group

MW–53 6964378.00 2296200.00 05/01/03 0 Earth Tech Corporation

MW–5C 6965804.00 2300139.00 04/10/97 0 International Technology Corp.

MW–7CRSWL 6965967.00 2300055.00 08/22/01 0 Science Applications International Corp.

MW–8 6965584.95 2300492.00 01/10/96 0 Law Environmental

MW–9 6966001.79 2300330.00 10/20/97 0 HydroGeoLogic, Inc.

MW–IT–01T 6961062.00 2298967.00 11/05/98 .99 Jacobs Engineering Group

MWMTAC–001 6959116.00 2296520.00 12/12/96 0 Jacobs Engineering Group

OT–15C 6963316.00 2300948.00 10/20/97 0 HydroGeoLogic, Inc.

RW–11U 6965385.00 2292586.20 07/30/94 6 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 0 U.S. Air Force, Center for Environmental Excellence

RW–3UR 6964444.10 2292090.10 12/14/00 8 U.S. Air Force, Center for Environmental Excellence

RW–8UR 6964339.00 2291990.60 12/14/00 0 U.S. Air Force, Center for Environmental Excellence

SD13–01 6963377.64 2300623.03 10/31/00 0 HydroGeoLogic, Inc.

SD13–02 6963472.80 2300754.49 10/27/00 0 HydroGeoLogic, Inc.

SD13–03 6963347.97 2300700.85 01/11/96 0 Law Environmental

SD13–04 6963346.39 2300773.06 10/31/00 0 HydroGeoLogic, Inc.

SD13–05 6963904.00 2300776.00 01/12/96 0 Law Environmental

SD13–06 6963164.35 2300908.00 06/26/01 0 HydroGeoLogic, Inc.

SD13–07 6963165.85 2301009.00 07/02/01 0 HydroGeoLogic, Inc.

SPOT35–2 6966175.00 2296854.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–3 6966109.00 2296851.00 12/03/01 0 HydroGeoLogic, Inc.

SPOT35–4 6966175.00 2296778.00 10/28/97 0 HydroGeoLogic, Inc.

SPOT35–5 6966020.04 2296847.00 10/14/02 0 Ellis Environmental Group

SPOT35–8 6966428.55 2296970.16 04/07/00 53 HydroGeoLogic, Inc.

ST14–01 6963295.30 2300090.83 01/11/96 0 Law Environmental

ST14–02 6963511.64 2300091.66 01/13/96 0 Law Environmental

ST14–03 6964079.97 2299891.62 10/09/02 0 Ellis Environmental Group

ST14–04 6963642.65 2300345.31 01/13/96 0 Law Environmental

ST14–14 6964309.76 2299735.00 05/01/98 0 HydroGeoLogic, Inc.

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
58 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

ST14–24 6964018.00 2299061.45 10/12/99 0 HydroGeoLogic, Inc.

ST14–26 6964593.00 2299557.00 04/13/98 0 HydroGeoLogic, Inc.

ST14–27 6964258.00 2300212.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W05 6963726.00 2299094.00 10/10/02 0 Ellis Environmental Group

ST14–W06 6963807.00 2299331.00 01/11/96 0 Law Environmental

ST14–W07 6963615.00 2299394.00 01/12/96 0 Law Environmental

ST14–W08 6964324.00 2299480.00 01/12/96 0 Law Environmental

ST14–W09 6963472.00 2299550.00 10/18/95 2 Law Environmental

ST14–W11 6964129.00 2299658.00 10/27/00 0 HydroGeoLogic, Inc.

ST14–W13 6963695.00 2299776.00 01/11/96 0 Law Environmental

ST14–W15 6963316.00 2299923.00 05/01/03 0 Earth Tech Corporation

ST14–W16 6964065.00 2300128.00 10/30/00 0 HydroGeoLogic, Inc.

ST14–W21 6963418.00 2300242.00 10/31/00 0 HydroGeoLogic, Inc.

ST14–W31 6963550.00 2300831.00 10/12/99 0 HydroGeoLogic, Inc.

T8 6965421.00 2289949.00 01/14/02 0 U.S. Air Force, Center for Environmental Excellence

T9 6965551.00 2289993.00 01/14/02 1 U.S. Air Force, Center for Environmental Excellence

USGS01T 6970384.00 2297661.30 12/09/96 0 Jacobs Engineering Group

USGS02T 6970326.56 2300333.85 12/09/96 0 Jacobs Engineering Group

USGS03T 6968704.70 2300610.01 01/10/96 0 Law Environmental

USGS04T 6968758.00 2299178.00 10/09/02 0 Ellis Environmental Group

USGS06T 6963763.00 2297542.08 05/01/03 0 Earth Tech Corporation

USGS07T 6960168.00 2295246.00 10/11/02 0 Ellis Environmental Group

VEP–10 6965452.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 2.4 Earth Tech Corporation

VEP–12 6965492.14 2289740.47 05/08/02 24 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/15/03 17 Shah Environmental

VEP–14 6965532.35 2289740.23 05/08/02 11 Earth Tech Corporation

VEP–15 6965572.27 2289739.27 05/09/02 2.2 Earth Tech Corporation

VEP–16 6965593.48 2289739.28 05/09/02 0 Earth Tech Corporation

VEP–18 6965631.89 2289739.19 05/09/02 29 Earth Tech Corporation

VEP–18B 6965652.25 2289740.40 10/22/02 50 Earth Tech Corporation

VEP–19 6965673.36 2289738.41 05/09/02 8 Earth Tech Corporation

VEP–20 6965692.62 2289738.81 05/10/02 1.9 Earth Tech Corporation

VEP–21 6965885.28 2289766.47 05/11/02 1.4 Earth Tech Corporation

VEP–22 6965904.64 2289772.36 05/11/02 4.9 Earth Tech Corporation

VEP–23 6965923.82 2289776.40 05/11/02 5.4 Earth Tech Corporation

VEP–24 6965947.42 2289785.33 05/11/02 12 Earth Tech Corporation

VEP–25 6965961.57 2289792.04 05/11/02 16 Earth Tech Corporation

VEP–26 6965979.44 2289801.00 05/15/03 1,150 Shah Environmental

VEP–27 6965996.42 2289811.11 05/12/02 120 Earth Tech Corporation

VEP–28 6966006.35 2289828.89 05/12/02 23 Earth Tech Corporation

VEP–29 6966014.37 2289844.00 05/15/03 980 Shah Environmental

VEP–3 6966027.00 2289825.00 05/12/02 22 Earth Tech Corporation

VEP–31 6966040.69 2289879.41 05/13/02 15 Earth Tech Corporation

VEP–32 6966058.55 2289884.99 05/13/02 5.6 Earth Tech Corporation

VEP–33 6966075.62 2289893.21 05/14/02 23 Earth Tech Corporation

VEP–35 6966114.00 2289901.00 05/14/02 140 Earth Tech Corporation

VEP–36 6966135.75 2289905.70 05/14/02 59 Earth Tech Corporation

VEP–37 6966155.08 2289906.66 05/14/02 51 Earth Tech Corporation

VEP–4 6966050.33 2289838.40 05/12/02 100 Earth Tech Corporation

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A4 59

VEP–40 6966096.49 2289877.53 05/13/02 1.4 Earth Tech Corporation

VEP–41 6966067.00 2289850.00 05/13/02 38 Earth Tech Corporation

VEP–5 6965352.65 2289735.96 05/07/02 0 Earth Tech Corporation

VEP–6 6965371.63 2289740.48 05/07/02 0 Earth Tech Corporation

VEP–7 6965393.00 2289742.00 05/07/02 0 Earth Tech Corporation

VEP–8 6965413.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEP–9 6965432.00 2289741.00 05/07/02 0 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 2.1 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 2.2 Earth Tech Corporation

W–129 6965935.87 2289777.80 05/12/93 1.6 Jacobs Engineering Group

W–130 6966042.89 2289868.15 06/14/93 0 Jacobs Engineering Group

W–131L 6963276.81 2290536.11 10/19/91 0 Chem-Nuclear Geotech, Inc.

W–131U 6963278.00 2290541.00 10/24/91 0 Chem-Nuclear Geotech, Inc.

W–132 6966136.51 2289895.52 09/10/91 8 Chem-Nuclear Geotech, Inc.

W–133U 6963349.00 2290609.00 06/06/93 0 Jacobs Engineering Group

W–134 6969156.00 2291067.00 05/14/93 0 Jacobs Engineering Group

W–135 6967837.68 2290606.07 05/01/03 0 Earth Tech Corporation

W–137 6963499.00 2290968.00 01/25/97 0 Jacobs Engineering Group

W–141L 6965386.71 2290672.36 10/18/91 0 Chem-Nuclear Geotech, Inc.

W–141U 6965391.58 2290672.52 06/14/93 0 Jacobs Engineering Group

W–143 6968548.58 2291192.24 09/11/91 0 Chem-Nuclear Geotech, Inc.

W–144 6965577.00 2290450.00 10/17/91 0 Chem-Nuclear Geotech, Inc.

W–145 6964387.65 2290600.35 09/15/91 0 Chem-Nuclear Geotech, Inc.

W–146 6965118.51 2290620.30 05/09/93 0 Jacobs Engineering Group

W–147 6965824.00 2290711.00 01/15/03 0 Earth Tech Corporation

W–149 6965190.70 2292456.97 04/23/98 3.1 Jacobs Engineering Group

W–151 6964980.90 2292475.30 05/25/93 0 Jacobs Engineering Group

W–154 6963926.46 2290107.04 10/20/91 0 Chem-Nuclear Geotech, Inc.

W–155 6968275.39 2293145.82 01/15/03 0 Earth Tech Corporation

W–156 6964824.12 2292815.02 05/27/93 0 Jacobs Engineering Group

W–158 6963954.83 2291080.82 06/06/93 0 Jacobs Engineering Group

W–160 6963448.68 2291368.51 01/24/97 17.2 Jacobs Engineering Group

W7TAITC 6966050.00 2290097.00 01/26/00 10 U.S. Air Force, Center for Environmental Excellence

W9AWNITC 6965921.00 2289851.00 01/24/00 0 U.S. Air Force, Center for Environmental Excellence

W9WNITC 6965916.00 2289859.00 10/16/99 0 U.S. Air Force, Center for Environmental Excellence

WCHMHTA004 6967949.00 2295041.00 09/26/01 0 Science Applications International Corp.

WCHMHTA006 6966690.11 2295406.97 05/01/03 .8 Earth Tech Corporation

WCHMHTA008 6967889.89 2295597.48 05/01/03 0 Earth Tech Corporation

WCHMHTA009 6968444.69 2296663.99 04/04/01 0 HydroGeoLogic, Inc.

WCHMHTA010 6967640.08 2296398.80 05/01/03 0 Earth Tech Corporation

WCHMHTA011 6969295.20 2297328.38 09/26/01 0 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 0 Earth Tech Corporation

WCHMHTA014 6970403.90 2294072.81 10/14/02 0 Ellis Environmental Group

WCOETA002 6962944.00 2296763.00 07/01/03 0 U.S. Geological Survey

WCOETA004 6962828.00 2296675.00 07/01/03 0 U.S. Geological Survey

WCOETA006 6962928.00 2296921.00 07/01/02 0 U.S. Geological Survey

WCOETA010 6962696.00 2296798.00 01/01/00 2.2 U.S. Geological Survey

WHGLFE001 6961575.00 2296063.00 06/19/02 24 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 26 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 5.9 HydroGeoLogic, Inc.

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
60 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WHGLFE004 6960785.00 2295825.00 06/19/02 0 HydroGeoLogic, Inc.

WHGLRW015 6960871.43 2298662.64 10/24/00 0 HydroGeoLogic, Inc.

WHGLRW016 6961034.95 2299201.47 10/16/02 0 Ellis Environmental Group

WHGLRW017 6960727.11 2299000.59 04/19/02 0 Ellis Environmental Group

WHGLRW018 6960532.93 2298744.63 11/01/99 0 HydroGeoLogic, Inc.

WHGLRW019 6960684.23 2298620.19 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA003 6961043.88 2298029.84 10/05/99 0 HydroGeoLogic, Inc.

WHGLTA004 6962943.38 2295760.62 10/18/99 7 HydroGeoLogic, Inc.

WHGLTA005 6963470.00 2301044.00 10/18/99 0 HydroGeoLogic, Inc.

WHGLTA007 6963162.51 2301093.11 06/26/01 0 HydroGeoLogic, Inc.

WHGLTA008 6963955.17 2300016.84 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA009 6965211.65 2297528.70 04/11/02 1 Ellis Environmental Group

WHGLTA010 6965580.03 2296770.93 10/31/00 0 HydroGeoLogic, Inc.

WHGLTA011 6968356.67 2295873.87 07/13/00 0 HydroGeoLogic, Inc.

WHGLTA012 6965920.84 2297740.00 04/10/02 14 Ellis Environmental Group

WHGLTA013 6965958.00 2297177.00 12/04/01 0 HydroGeoLogic, Inc.

WHGLTA014 6966295.34 2297373.92 10/27/00 140 HydroGeoLogic, Inc.

WHGLTA020 6962285.83 2299684.95 11/05/99 0 HydroGeoLogic, Inc.

WHGLTA022 6960401.65 2297691.54 11/03/99 0 HydroGeoLogic, Inc.

WHGLTA023 6960492.16 2298565.43 11/04/99 0 HydroGeoLogic, Inc.

WHGLTA025 6961608.26 2298942.63 10/08/02 0 Ellis Environmental Group

WHGLTA028 6967761.00 2297451.00 04/17/02 16 Ellis Environmental Group

WHGLTA029 6965736.00 2298574.00 11/28/01 2 HydroGeoLogic, Inc.

WHGLTA043 6961771.99 2297021.32 10/16/02 19 Ellis Environmental Group

WHGLTA044 6961721.40 2297347.37 10/17/02 0 Ellis Environmental Group

WHGLTA045 6961321.90 2298368.80 10/17/02 0 Ellis Environmental Group

WHGLTA046 6961298.49 2296089.68 02/26/02 35 HydroGeoLogic, Inc.

WHGLTA048 6960916.20 2298714.83 05/01/03 0 Earth Tech Corporation

WHGLTA049 6962329.24 2299269.36 10/17/02 0 Ellis Environmental Group

WHGLTA050 6963013.36 2296420.09 04/06/01 0 HydroGeoLogic, Inc.

WHGLTA051 6962894.90 2296247.12 10/16/02 1 Ellis Environmental Group

WHGLTA052 6962769.45 2296098.07 04/06/01 2 HydroGeoLogic, Inc.

WHGLTA053 6960334.00 2295474.00 12/05/01 0 HydroGeoLogic, Inc.

WHGLTA054 6960748.26 2295541.09 10/11/02 68 Ellis Environmental Group

WHGLTA055 6960809.82 2295662.85 10/11/02 0 Ellis Environmental Group

WHGLTA056 6960787.36 2295827.62 04/06/01 1 HydroGeoLogic, Inc.

WHGLTA060 6965619.32 2298210.18 07/20/01 12 HydroGeoLogic, Inc.

WHGLTA061 6965621.74 2298341.01 11/27/01 0 HydroGeoLogic, Inc.

WHGLTA062 6965663.00 2298317.27 11/26/01 4 HydroGeoLogic, Inc.

WHGLTA063 6965677.07 2298270.14 07/20/01 4 HydroGeoLogic, Inc.

WHGLTA064 6965075.48 2298351.15 05/01/03 0 Earth Tech Corporation

WHGLTA065 6960593.00 2295633.00 12/06/01 2 HydroGeoLogic, Inc.

WHGLTA066 6960807.00 2295402.00 12/02/01 0 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 0 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 05/05/03 86 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 05/05/03 93 HydroGeoLogic, Inc.

WHGLTA072 6961283.00 2296102.00 06/18/02 28 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 06/18/02 15 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 05/05/03 110 HydroGeoLogic, Inc.

WHGLTA075 6961072.00 2295934.00 06/17/02 2 HydroGeoLogic, Inc.

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A4 61

WHGLTA076 6961086.00 2295934.00 05/05/03 29 HydroGeoLogic, Inc.

WHGLTA077 6960785.00 2295776.00 06/20/02 1.5 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 3 Ellis Environmental Group

WHGLTA101 6964634.00 2301220.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA102 6964449.00 2301388.00 06/03/99 0 HydroGeoLogic, Inc.

WHGLTA103 6964314.53 2301522.24 06/02/99 0 HydroGeoLogic, Inc.

WHGLTA104 6964226.00 2301608.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA201 6963198.14 2298660.88 12/09/98 1 HydroGeoLogic, Inc.

WHGLTA202 6963326.21 2298832.59 12/14/98 0 HydroGeoLogic, Inc.

WHGLTA203 6963059.00 2298401.00 09/23/98 9 HydroGeoLogic, Inc.

WHGLTA204 6963625.62 2298104.66 12/10/98 0 HydroGeoLogic, Inc.

WHGLTA302 6962603.00 2294422.00 05/07/98 42 HydroGeoLogic, Inc.

WHGLTA303 6962351.00 2294401.00 05/08/98 46 HydroGeoLogic, Inc.

WHGLTA601 6962753.00 2297473.69 10/05/99 4 HydroGeoLogic, Inc.

WHGLTA602 6962752.66 2297625.01 09/25/98 6 HydroGeoLogic, Inc.

WHGLTA603 6962713.38 2297727.19 04/19/02 0 Ellis Environmental Group

WHGLTA604 6963195.00 2297530.00 12/14/98 0 HydroGeoLogic, Inc.

WHGLTA701 6961835.73 2295332.86 07/21/99 70 HydroGeoLogic, Inc.

WHGLTA702 6961920.00 2295882.00 09/28/98 37 HydroGeoLogic, Inc.

WHGLTA703 6961680.70 2295741.23 02/21/01 30 HydroGeoLogic, Inc.

WHGLTA704 6962141.07 2295831.51 09/24/98 8 HydroGeoLogic, Inc.

WHGLTA705 6962003.00 2296027.00 06/01/00 7 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 07/13/00 1 HydroGeoLogic, Inc.

WHGLTA708 6962019.93 2295647.18 02/19/01 2 HydroGeoLogic, Inc.

WHGLTA709 6961934.71 2295750.93 02/19/01 34 HydroGeoLogic, Inc.

WHGLTA801 6962790.06 2295857.80 04/06/01 29 HydroGeoLogic, Inc.

WHGLTA901 6967832.00 2299643.00 11/02/99 0 HydroGeoLogic, Inc.

WHGLTA902 6967671.00 2299952.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA903 6967830.00 2300086.00 10/12/99 0 HydroGeoLogic, Inc.

WHGLTA904 6968031.00 2300174.00 10/11/99 0 HydroGeoLogic, Inc.

WHGLTA905 6967574.00 2299782.00 10/11/99 0 HydroGeoLogic, Inc.

WINTTA027 6964477.66 2291931.10 12/20/00 0 U.S. Air Force, Center for Environmental Excellence

WITCTA001 6969592.01 2296447.73 04/28/97 0 International Technology Corp.

WITCTA002 6969259.49 2296136.48 05/06/97 0 International Technology Corp.

WITCTA003 6969112.00 2297406.00 10/09/02 0 Ellis Environmental Group

WITCTA004 6968940.00 2297491.00 05/01/03 1.7 Earth Tech Corporation

WITCTA005 6968459.46 2298167.79 04/28/97 0 International Technology Corp.

WITCTA006 6968427.00 2298263.00 05/02/97 0 International Technology Corp.

WITCTA008 6967940.00 2298030.00 05/01/97 0 International Technology Corp.

WITCTA009 6967862.00 2298234.00 08/23/01 9 Science Applications International Corp.

WITCTA010 6967695.00 2298753.00 04/04/00 2 HydroGeoLogic, Inc.

WITCTA011 6967455.26 2297357.31 04/30/97 0 International Technology Corp.

WITCTA012 6967348.77 2298224.39 05/01/03 110 Earth Tech Corporation

WITCTA013 6967017.00 2297752.00 08/23/01 7 Science Applications International Corp.

WITCTA014 6966904.57 2297418.51 08/23/01 8 Science Applications International Corp.

WITCTA015 6966333.00 2298395.00 08/23/01 38 Science Applications International Corp.

WITCTA016 6966239.00 2298062.00 07/20/99 160 HydroGeoLogic, Inc.

WITCTA017 6967298.15 2299305.78 10/17/02 11 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 0 Ellis Environmental Group

WITCTA020 6963895.32 2296316.79 04/29/97 0 International Technology Corp.

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
62 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WITCTA021 6963795.40 2298719.16 05/01/97 0 International Technology Corp.

WITCTA022 6963651.00 2298744.00 04/29/97 0 International Technology Corp.

WITCTA024 6965971.78 2298956.02 10/09/02 0 Ellis Environmental Group

WITCTA025 6966005.00 2299534.00 04/09/02 39 Ellis Environmental Group

WITCTA026 6965458.00 2299481.00 10/09/02 0 Ellis Environmental Group

WITCTA027 6965194.74 2299511.86 04/24/97 0 International Technology Corp.

WITCTA028 6965161.00 2300621.00 04/24/97 0 International Technology Corp.

WITCTA031 6964690.00 2299152.00 05/01/97 0 International Technology Corp.

WITCTA032 6964501.67 2299196.64 04/30/97 0 International Technology Corp.

WITCTA033 6964388.00 2300520.00 04/30/97 0 International Technology Corp.

WITCTA034 6963956.68 2300951.49 04/30/97 0 International Technology Corp.

WITCTA035 6963388.12 2299094.68 05/01/97 0 International Technology Corp.

WITCTA036 6963182.00 2299629.00 05/02/97 0 International Technology Corp.

WITCTA037 6963424.00 2297784.00 04/29/97 0 International Technology Corp.

WITCTA039 6962339.77 2295415.41 05/01/97 0 International Technology Corp.

WITCTA040 6963260.00 2299515.00 05/01/03 0 Earth Tech Corporation

WITCTA041 6963169.00 2299642.00 10/09/02 0 Ellis Environmental Group

WITCTA043 6963110.00 2299725.00 10/10/02 0 Ellis Environmental Group

WITCTA044 6963056.00 2299836.00 10/06/99 0 HydroGeoLogic, Inc.

WJETA060 6963892.00 2290889.00 05/01/03 0 Earth Tech Corporation

WJETA061 6963915.00 2290873.00 05/03/02 0 Earth Tech Corporation

WJETA083 6964204.32 2292903.92 12/20/00 4 U.S. Air Force, Center for Environmental Excellence

WJETA086 6965443.05 2292457.02 12/14/00 0 U.S. Air Force, Center for Environmental Excellence

WJETA501 6962953.00 2296722.00 06/01/98 .5 U.S. Geological Survey

WJETA502 6962955.00 2296726.00 06/01/98 .6 U.S. Geological Survey

WJETA503 6962957.00 2296723.00 06/01/98 .5 U.S. Geological Survey

WJETA504 6962911.00 2296817.00 01/01/02 5.8 U.S. Geological Survey

WJETA505 6962911.00 2296820.00 02/01/98 .52 U.S. Geological Survey

WJETA507 6962835.00 2296843.00 06/01/98 .4 U.S. Geological Survey

WJETA508 6962836.00 2296841.00 07/01/00 4.2 U.S. Geological Survey

WJETA509 6962837.00 2296842.00 06/01/98 .4 U.S. Geological Survey

WJETA510 6962680.00 2296812.00 01/01/00 20 U.S. Geological Survey

WJETA511 6962679.00 2296809.00 01/01/03 8.5 U.S. Geological Survey

WJETA512 6962682.00 2296810.00 06/01/98 10.4 U.S. Geological Survey

WJETA513 6962998.00 2296754.00 06/01/98 1.1 U.S. Geological Survey

WJETA514 6962864.00 2296751.00 07/01/01 1.1 U.S. Geological Survey

WJETA515 6962863.00 2296894.00 06/01/98 .8 U.S. Geological Survey

WJETA516 6962969.00 2296860.00 01/01/00 1.1 U.S. Geological Survey

WJETA517 6962866.00 2296714.00 01/01/00 .99 U.S. Geological Survey

WJETA518 6962950.00 2296714.00 02/01/98 .47 U.S. Geological Survey

WJETA519 6962842.00 2296754.00 01/01/03 1.1 U.S. Geological Survey

WJETA520 6962879.00 2296810.00 06/01/98 .8 U.S. Geological Survey

WJETA521 6962921.00 2296867.00 06/01/98 .8 U.S. Geological Survey

WJETA522 6962871.00 2296834.00 06/01/98 .7 U.S. Geological Survey

WJETA523 6962887.00 2296845.00 06/01/98 1 U.S. Geological Survey

WJETA524 6962818.00 2296807.00 06/01/98 1 U.S. Geological Survey

WJETA525 6962800.00 2296820.00 01/01/00 .7 U.S. Geological Survey

WJETA526 6962778.00 2296826.00 02/01/98 .53 U.S. Geological Survey

WJETA527 6962856.00 2296937.00 07/01/02 1.2 U.S. Geological Survey

WJETA528 6962815.00 2296880.00 07/01/01 12 U.S. Geological Survey

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A4 63

WJETA529 6962759.00 2296997.00 01/01/00 1 U.S. Geological Survey

WJETA530 6959546.93 2296533.87 12/14/96 0 Jacobs Engineering Group

WJETA531 6958909.00 2295894.00 12/08/96 0 Jacobs Engineering Group

WJETA534 6958941.15 2296341.54 12/14/96 0 Jacobs Engineering Group

WJETA535 6959722.27 2296794.44 10/26/00 0 HydroGeoLogic, Inc.

WL–090JETA 6963983.92 2291896.50 07/28/98 5.6 Jacobs Engineering Group

WL–091JETA 6964268.00 2291919.00 07/28/98 0 Jacobs Engineering Group

WL–091JETA 6964268.00 2291919.00 07/28/98 1.46 Jacobs Engineering Group

WL–095JETA 6964195.00 2291863.00 08/11/98 1.99 Jacobs Engineering Group

WL–101JETA 6965358.00 2292299.00 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–102JETA 6964785.97 2292815.37 01/22/01 2 U.S. Air Force, Center for Environmental Excellence

WL–104JETA 6964423.59 2292886.41 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–105JETA 6963929.81 2293101.42 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–106JETA 6963806.49 2293001.85 12/13/00 11 U.S. Air Force, Center for Environmental Excellence

WL–107JETA 6964701.29 2292815.04 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–111JETA 6965121.90 2292395.25 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–112JETA 6965174.34 2292533.25 12/20/00 0 U.S. Air Force, Center for Environmental Excellence

WL–113JETA 6964978.06 2292461.75 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–115JETA 6964589.06 2292916.26 01/22/01 3 U.S. Air Force, Center for Environmental Excellence

WL–116JETA 6964025.89 2292914.56 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–117JETA 6963947.23 2293003.37 12/13/00 6 U.S. Air Force, Center for Environmental Excellence

WL–118JETA 6964485.69 2292811.17 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–119JETA 6964313.78 2292916.79 01/22/01 2 U.S. Air Force, Center for Environmental Excellence

WL–120JETA 6964237.93 2293001.62 01/22/01 2 U.S. Air Force, Center for Environmental Excellence

WL–121JETA 6963866.38 2293059.70 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–122JETA 6964091.58 2293038.73 12/13/00 0 U.S. Air Force, Center for Environmental Excellence

WL–124AJETA 6965108.00 2292368.00 01/22/01 0 U.S. Air Force, Center for Environmental Excellence

WL–127JETA 6964804.08 2292467.36 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–150JETA 6964352.32 2291866.76 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–153JETA 6964329.24 2291906.43 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–155JETA 6964315.00 2291929.84 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–158JETA 6964300.36 2291955.82 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–160JETA 6964290.24 2291969.86 12/20/00 2 U.S. Air Force, Center for Environmental Excellence

WL–161JETA 6964284.87 2291981.87 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–163JETA 6964274.54 2291998.95 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–164JETA 6964269.73 2292007.70 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–165JETA 6964259.62 2292024.31 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–166JETA 6964264.16 2292015.93 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–167JETA 6964254.13 2292033.79 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–169JETA 6964244.25 2292050.42 12/12/00 5 U.S. Air Force, Center for Environmental Excellence

WL–171JETA 6964233.96 2292067.54 12/12/00 2 U.S. Air Force, Center for Environmental Excellence

WL–174JETA 6964219.01 2292093.61 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WL–177JETA 6964202.14 2292120.93 12/12/00 0 U.S. Air Force, Center for Environmental Excellence

WP07–10B 6961277.46 2296040.45 05/01/97 123 CH2M Hill

WSAICTA002 6964473.05 2294921.57 12/14/00 0 Science Applications International Corp.

WSAICTA003 6962921.08 2294630.39 12/11/00 29 Science Applications International Corp.

WSAICTA004 6963343.80 2293586.34 06/26/02 0 Science Applications International Corp.

WSAICTA005 6963578.03 2293587.28 06/26/02 0 Science Applications International Corp.

WSAICTA007 6961971.36 2294861.23 06/26/02 8 Science Applications International Corp.

WSAICTA008 6961974.34 2294585.80 04/11/02 9 Ellis Environmental Group

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
64 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WSAICTA010 6962655.14 2294341.87 05/01/03 3.5 Earth Tech Corporation

WSAICTA014 6963885.00 2293582.00 09/25/01 1 Science Applications International Corp.

WSAICTA015 6966805.36 2299042.92 09/24/01 5 Science Applications International Corp.

WSAICTA016 6966551.89 2299049.00 10/17/02 44 Earth Tech Corporation

WSAICTA017 6966921.03 2298810.34 09/24/01 0 Science Applications International Corp.

WSAICTA021 6966905.72 2299748.32 10/03/01 0 Science Applications International Corp.

WSAICTA023 6967077.62 2298656.36 10/17/02 74 Earth Tech Corporation

WSAICTA025 6961666.49 2294798.23 10/03/01 1 Science Applications International Corp.

WSAICTA026 6961723.12 2294432.29 06/21/02 0 Science Applications International Corp.

WUSGSTA001 6962644.00 2297002.00 02/01/98 .47 U.S. Geological Survey

WUSGSTA002 6962263.00 2296964.00 02/01/98 0 U.S. Geological Survey

WUSGSTA003 6961872.00 2296987.00 06/01/98 .7 U.S. Geological Survey

WUSGSTA004 6962085.00 2297504.00 02/01/98 3.17 U.S. Geological Survey

WUSGSTA005 6961955.00 2297925.00 02/01/98 .15 U.S. Geological Survey

WUSGSTA006 6961670.00 2298251.00 02/01/98 8.25 U.S. Geological Survey

WUSGSTA007 6962684.00 2298206.00 02/01/98 3.74 U.S. Geological Survey

WUSGSTA008 6962636.00 2296832.00 06/01/98 .5 U.S. Geological Survey

WUSGSTA009 6962766.00 2296661.00 02/01/98 7.26 U.S. Geological Survey

WUSGSTA010 6962707.00 2296719.00 02/01/98 3.77 U.S. Geological Survey

WUSGSTA011 6962668.00 2296825.00 01/01/00 1.5 U.S. Geological Survey

WUSGSTA012 6962787.00 2297104.00 02/01/98 .54 U.S. Geological Survey

WUSGSTA013 6962745.00 2297215.00 02/01/98 .7 U.S. Geological Survey

WUSGSTA014 6962826.00 2297306.00 05/01/99 18 U.S. Geological Survey

WUSGSTA015 6963054.00 2296591.00 02/01/98 .94 U.S. Geological Survey

WUSGSTA016 6963036.00 2296370.00 02/01/98 .64 U.S. Geological Survey

WUSGSTA017 6962675.00 2296815.00 05/01/99 3 U.S. Geological Survey

WUSGSTA018 6962566.00 2297413.00 06/01/98 6.9 U.S. Geological Survey

WUSGSTA019 6963009.00 2297050.00 02/01/98 .74 U.S. Geological Survey

WUSGSTA020 6962722.00 2296818.00 01/01/00 1.6 U.S. Geological Survey

WUSGSTA021 6962659.00 2296814.00 05/01/99 5 U.S. Geological Survey

WUSGSTA022 6962736.00 2296740.00 06/01/98 1.6 U.S. Geological Survey

WUSGSTA023 6962638.00 2296810.00 02/01/98 .24 U.S. Geological Survey

Table A4. Maximum historical trans-1,2-dichloroethene (trans-DCE) concentrations in the alluvial aquifer, Air Force Plant 4 (AFP4) and 

Naval Air Station-Joint Reserve Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued.

Well

number Northing Easting Datecollected

Maximum

historical

concentration

(micrograms

per liter)

Source
Table A5 65

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations in the alluvial aquifer, used to 

compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued. 

Well

number Northing Easting Date

collected

PCE

concentration

(micrograms

per liter)

TCE

concentration

(micrograms

per liter)

Source

1–C 6964450.00 2301255.00 03/05/85 0 1 Radian Corporation

5–B 6962558.83 2295444.82 03/05/85 0 39 Radian Corporation

CAR–RW1 6960869.00 2296755.00 09/16/99 2 540 HydroGeoLogic, Inc.

CAR–RW10 6961279.06 2296078.88 11/05/99 0 3,200 HydroGeoLogic, Inc.

CAR–RW11 6961412.39 2296075.74 09/16/99 13 540 HydroGeoLogic, Inc.

CAR–RW12 6961192.46 2295933.72 02/27/02 .54 2,400 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 09/16/99 3 490 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 09/17/99 7 560 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 11/05/99 0 1,500 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 09/17/99 4 550 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 09/16/99 14 570 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 09/17/99 6 550 HydroGeoLogic, Inc.

F–214 6966040.04 2289864.00 10/24/02 0 210,000 Earth Tech Corporation

F–216 6965776.18 2290219.93 10/08/95 0 20 Jacobs Engineering Group

F–217 6965959.98 2290109.05 01/27/00 0 170 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.29 2291474.21 05/01/03 0 6,570 Earth Tech Corporation

F–219 6964343.31 2291472.82 10/30/95 0 56 Jacobs Engineering Group

F–220 6964050.32 2290236.60 11/13/95 0 160,000 Jacobs Engineering Group

FSA–3–08 6969116.51 2290712.86 11/14/95 0 9.8 Jacobs Engineering Group

FSA–3–10 6969075.75 2290779.47 11/14/95 0 21 Jacobs Engineering Group

FSA–3–12 6968999.05 2290836.80 11/13/95 0 17 Jacobs Engineering Group

FT08–11B 6962034.00 2295931.00 01/14/96 0 37 Law Environmental

FT09–12B 6960709.31 2295697.41 02/21/01 56 100 HydroGeoLogic, Inc.

FT09–12E 6960701.08 2295821.16 12/05/01 3 13 HydroGeoLogic, Inc.

GMI–04–01M 6960931.00 2296729.00 10/29/97 0 880 HydroGeoLogic, Inc.

GMI–22–01M 6965122.22 2297689.15 07/16/95 0 14 Law Environmental

GMI–22–03M 6966219.92 2298539.37 05/23/94 23 26 Geo-Marine, Inc.

GMI–22–04M 6967250.52 2297341.00 07/19/99 1 200 HydroGeoLogic, Inc.

GMI–22–06M 6967004.48 2298186.58 05/23/94 7 660 Geo-Marine, Inc.

HM–10 6965810.91 2290121.80 01/27/00 0 12 U.S. Air Force, Center for Environmental Excellence

HM–11 6963091.76 2290932.28 08/29/83 24 560 Hargis + Associates

HM–110 6963667.53 2293163.24 12/08/00 0 540 Science Applications International Corp.

HM–111 6963624.05 2293266.53 10/10/95 0 19 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 04/06/00 2 7,400 HydroGeoLogic, Inc.

HM–113 6964677.00 2293133.60 01/20/96 0 640 Jacobs Engineering Group

HM–114 6963912.10 2294352.00 04/11/02 1 290 Ellis Environmental Group

HM–116 6966411.43 2294283.69 04/11/02 8 140 Ellis Environmental Group

HM–118 6968035.19 2294780.47 10/14/02 6 180 Ellis Environmental Group

HM–119 6968726.00 2294271.80 10/18/02 1 7.6 Earth Tech Corporation

HM–12 6963088.53 2290396.72 02/14/86 0 .23 Radian Corporation

HM–121 6967390.20 2295279.20 11/07/95 0 520 Jacobs Engineering Group

HM–123 6961638.50 2295272.60 05/01/03 0 244 Earth Tech Corporation

HM–124 6963957.77 2295223.26 11/14/95 0 2.2 Jacobs Engineering Group

HM–126 6963121.05 2294300.23 07/20/00 1 1,500 HydroGeoLogic, Inc.

HM–17 6963993.31 2290451.65 10/31/95 0 2,400 Jacobs Engineering Group

HM–29 6966014.89 2290711.88 07/31/84 2 480 Hargis + Associates

HM–31 6963114.44 2291505.33 05/01/03 0 127 Earth Tech Corporation

HM–56 6965454.00 2291472.23 10/11/85 10 10 Hargis + Associates

HM–59 6966811.00 2291469.61 08/08/84 920 18 Hargis + Associates

HM–64 6966406.97 2291114.57 05/08/93 390 10 Jacobs Engineering Group

Table A5

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations in the alluvial aquifer, used to 

compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
66 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

HM–71 6966470.35 2292457.39 10/14/95 70 280 Jacobs Engineering Group

HM–88 6964479.91 2291919.17 05/01/03 4.5 4,768 Earth Tech Corporation

HM–90 6965640.09 2292457.85 05/21/93 0 5.9 Jacobs Engineering Group

HM–91 6966174.30 2292586.29 06/04/93 0 450 Jacobs Engineering Group

HM–92 6965645.68 2292250.42 10/28/95 0 1.6 Jacobs Engineering Group

HM–95 6965442.59 2293156.22 05/01/03 0 6,724 Earth Tech Corporation

HM–96 6966507.03 2293168.95 01/15/03 15 230 Earth Tech Corporation

HM–97 6966884.14 2293158.51 05/26/93 45 330 Jacobs Engineering Group

LF04–02 6961113.06 2296309.10 07/08/99 6 310 HydroGeoLogic, Inc.

LF04–03 6961064.00 2296306.00 09/16/99 2 540 HydroGeoLogic, Inc.

LF04–4C 6960600.00 2296588.00 10/06/99 0 10 HydroGeoLogic, Inc.

LF04–4D 6960828.00 2296412.00 05/05/03 0 330 HydroGeoLogic, Inc.

LF05–01 6962728.35 2294577.83 10/14/02 0 58 Ellis Environmental Group

LF05–18 6961555.64 2297075.43 10/29/97 0 860 HydroGeoLogic, Inc.

LF05–19 6961239.89 2297461.35 05/01/03 0 1 Earth Tech Corporation

LF05–5B 6961901.56 2296078.25 10/16/02 0 1 Ellis Environmental Group

LF05–5C 6961720.05 2295993.73 01/15/96 0 939 Law Environmental

LF05–5D 6961739.00 2295754.00 01/14/96 0 1,110 Law Environmental

LF05–5G 6961558.00 2296690.00 05/05/03 0 530 HydroGeoLogic, Inc.

LF05–5H 6961732.39 2296340.79 05/05/03 0 6.7 HydroGeoLogic, Inc.

LSA1628–2 6967943.00 2297847.00 01/15/96 0 59 Law Environmental

LSA1628–3 6967993.10 2297791.30 07/19/99 1 200 HydroGeoLogic, Inc.

MW–19 6963513.00 2295369.00 08/22/01 0 156 Science Applications International Corp.

MW–5 6963910.00 2290826.00 10/25/01 0 330,000 U.S. Air Force, Center for Environmental Excellence

MW–50 6968529.00 2295622.00 07/22/96 0 4 Jacobs Engineering Group

MW–53 6964378.00 2296200.00 01/20/99 25 89 HydroGeoLogic, Inc.

RW–11U 6965385.00 2292586.20 07/30/94 0 6,900 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 0 12,000 U.S. Air Force, Center for Environmental Excellence

RW–2U 6964643.00 2292424.50 01/20/93 0 12,000 U.S. Air Force, Center for Environmental Excellence

ST14–W09 6963472.00 2299550.00 01/13/96 0 1 Law Environmental

T9 6965551.00 2289993.00 01/14/02 0 1 U.S. Air Force, Center for Environmental Excellence

USGS06T 6963763.00 2297542.08 05/01/03 0 1.3 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 0 18 Earth Tech Corporation

VEP–12 6965492.14 2289740.47 05/08/02 0 260 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/15/03 0 154 Shaw Environmental

VEP–14 6965532.35 2289740.23 05/08/02 0 180 Earth Tech Corporation

VEP–15 6965572.27 2289739.27 05/09/02 0 60 Earth Tech Corporation

VEP–17 6965612.88 2289738.95 05/09/02 0 45 Earth Tech Corporation

VEP–18 6965631.89 2289739.19 05/09/02 0 5.9 Earth Tech Corporation

VEP–19 6965673.36 2289738.41 05/09/02 0 19 Earth Tech Corporation

VEP–21 6965885.28 2289766.47 05/11/02 0 9.4 Earth Tech Corporation

VEP–22 6965904.64 2289772.36 05/11/02 0 23 Earth Tech Corporation

VEP–23 6965923.82 2289776.40 05/11/02 0 20 Earth Tech Corporation

VEP–24 6965947.42 2289785.33 05/11/02 0 60 Earth Tech Corporation

VEP–25 6965961.57 2289792.04 05/11/02 0 85 Earth Tech Corporation

VEP–26 6965979.44 2289801.00 05/15/03 0 1,780 Shaw Environmental

VEP–3 6966027.00 2289825.00 05/12/02 0 4.7 Earth Tech Corporation

VEP–31 6966040.69 2289879.41 05/13/02 0 4.9 Earth Tech Corporation

VEP–36 6966135.75 2289905.70 05/14/02 0 11 Earth Tech Corporation

VEP–37 6966155.08 2289906.66 05/14/02 0 170 Earth Tech Corporation

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations in the alluvial aquifer, used to 

compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued. 

Well

number Northing Easting Datecollected

PCE

concentration

(micrograms

per liter)

TCE

concentration

(micrograms

per liter)

Source
Table A5 67

VEP–41 6966067.00 2289850.00 05/13/02 2.3 66 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 0 1.9 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 0 1.6 Earth Tech Corporation

W–129 6965935.87 2289777.80 05/12/93 0 58 Jacobs Engineering Group

W–130 6966042.89 2289868.15 06/14/93 0 490,000 Jacobs Engineering Group

W–131U 6963278.00 2290541.00 10/24/91 0 21 Chem-Nuclear Geotech, Inc.

W–137 6963499.00 2290968.00 01/25/97 0 102 Jacobs Engineering Group

W–144 6965577.00 2290450.00 09/17/91 0 45 Chem-Nuclear Geotech, Inc.

W–145 6964387.65 2290600.35 09/15/91 0 8 Chem-Nuclear Geotech, Inc.

W–146 6965118.51 2290620.30 05/09/93 0 6.3 Jacobs Engineering Group

W–147 6965824.00 2290711.00 01/15/03 .15 .15 Earth Tech Corporation

W–149 6965190.70 2292456.97 05/01/03 0 3,220 Earth Tech Corporation

W–151 6964980.90 2292475.30 05/25/93 0 500 Jacobs Engineering Group

W–155 6968275.39 2293145.82 01/15/03 0 .07 Earth Tech Corporation

W–156 6964824.12 2292815.02 05/27/93 0 6,400 Jacobs Engineering Group

W–158 6963954.83 2291080.82 06/06/93 0 16,000 Jacobs Engineering Group

W–160 6963448.68 2291368.51 01/24/97 0 553 Jacobs Engineering Group

WCHMHTA004 6967949.00 2295041.00 09/26/01 1 52 Science Applications International Corp.

WCHMHTA006 6966690.11 2295406.97 05/01/03 .7 263 Earth Tech Corporation

WCHMHTA008 6967889.89 2295597.48 05/01/03 0 1.4 Earth Tech Corporation

WCHMHTA009 6968444.69 2296663.99 10/31/00 4 350 HydroGeoLogic, Inc.

WCHMHTA010 6967640.08 2296398.80 05/01/03 5.7 387 Earth Tech Corporation

WCHMHTA011 6969295.20 2297328.38 09/26/01 5 198 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 0 12 Earth Tech Corporation

WCHMHTA014 6970403.90 2294072.81 10/14/02 0 1 Ellis Environmental Group

WHGLFE001 6961575.00 2296063.00 06/19/02 0 700 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 0 1,100 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 0 3.3 HydroGeoLogic, Inc.

WHGLRW015 6960871.43 2298662.64 10/24/00 0 36 HydroGeoLogic, Inc.

WHGLTA003 6961043.88 2298029.84 10/05/99 0 24 HydroGeoLogic, Inc.

WHGLTA004 6962943.38 2295760.62 04/18/02 0 370 Ellis Environmental Group

WHGLTA009 6965211.65 2297528.70 05/01/03 0 45 Earth Tech Corporation

WHGLTA010 6965580.03 2296770.93 10/31/00 0 14 HydroGeoLogic, Inc.

WHGLTA011 6968356.67 2295873.87 07/13/00 0 8 HydroGeoLogic, Inc.

WHGLTA014 6966295.34 2297373.92 10/27/00 0 36 HydroGeoLogic, Inc.

WHGLTA025 6961608.26 2298942.63 10/08/02 0 1 Ellis Environmental Group

WHGLTA028 6967761.00 2297451.00 10/11/02 1 300 Ellis Environmental Group

WHGLTA043 6961771.99 2297021.32 05/01/03 0 357 Earth Tech Corporation

WHGLTA045 6961321.90 2298368.80 10/17/02 0 2 Ellis Environmental Group

WHGLTA046 6961298.49 2296089.68 02/26/02 6.9 2,300 HydroGeoLogic, Inc.

WHGLTA048 6960916.20 2298714.83 05/01/03 0 3 Earth Tech Corporation

WHGLTA049 6962329.24 2299269.36 10/17/02 0 1 Ellis Environmental Group

WHGLTA051 6962894.90 2296247.12 10/16/02 1 350 Ellis Environmental Group

WHGLTA052 6962769.45 2296098.07 04/06/01 0 300 HydroGeoLogic, Inc.

WHGLTA054 6960748.26 2295541.09 04/06/01 38 53 HydroGeoLogic, Inc.

WHGLTA065 6960593.00 2295633.00 12/06/01 0 5 HydroGeoLogic, Inc.

WHGLTA066 6960807.00 2295402.00 12/02/01 2 1 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 0 42 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 05/05/03 0 770 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 05/05/03 0 1,500 HydroGeoLogic, Inc.

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations in the alluvial aquifer, used to 

compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued. 

Well

number Northing Easting Datecollected

PCE

concentration

(micrograms

per liter)

TCE

concentration

(micrograms

per liter)

Source
68 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WHGLTA072 6961283.00 2296102.00 05/05/03 0.31 14 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 06/18/02 27 2,600 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 05/05/03 0 120 HydroGeoLogic, Inc.

WHGLTA076 6961086.00 2295934.00 05/05/03 0 1,300 HydroGeoLogic, Inc.

WHGLTA077 6960785.00 2295776.00 05/05/03 0 7.2 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 0 7 Ellis Environmental Group

WHGLTA201 6963198.14 2298660.88 12/09/98 0 25 HydroGeoLogic, Inc.

WHGLTA202 6963326.21 2298832.59 12/14/98 0 16 HydroGeoLogic, Inc.

WHGLTA204 6963625.62 2298104.66 12/10/98 0 2 HydroGeoLogic, Inc.

WHGLTA303 6962351.00 2294401.00 06/21/02 0 206 Science Applications International Corp.

WHGLTA601 6962753.00 2297473.69 10/16/02 0 74 Ellis Environmental Group

WHGLTA602 6962752.66 2297625.01 12/08/98 0 110 HydroGeoLogic, Inc.

WHGLTA604 6963195.00 2297530.00 12/14/98 0 120 HydroGeoLogic, Inc.

WHGLTA701 6961835.73 2295332.86 07/03/02 0 1,280 Science Applications International Corp.

WHGLTA702 6961920.00 2295882.00 02/21/01 0 4 HydroGeoLogic, Inc.

WHGLTA703 6961680.70 2295741.23 02/21/01 0 2,200 HydroGeoLogic, Inc.

WHGLTA704 6962141.07 2295831.51 10/10/02 0 1 Ellis Environmental Group

WHGLTA705 6962003.00 2296027.00 02/15/01 0 1 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 02/16/01 0 3 HydroGeoLogic, Inc.

WHGLTA707 6962188.16 2295592.35 02/19/01 0 1 HydroGeoLogic, Inc.

WHGLTA708 6962019.93 2295647.18 02/19/01 0 12 HydroGeoLogic, Inc.

WHGLTA709 6961934.71 2295750.93 02/19/01 0 110 HydroGeoLogic, Inc.

WHGLTA801 6962790.06 2295857.80 04/06/01 0 150 HydroGeoLogic, Inc.

WITCTA004 6968940.00 2297491.00 04/03/01 1 230 HydroGeoLogic, Inc.

WITCTA005 6968459.46 2298167.79 04/28/97 0 310 International Technology Corp.

WITCTA006 6968427.00 2298263.00 05/02/97 0 25 International Technology Corp.

WITCTA007 6968310.56 2298433.07 04/22/97 0 54 International Technology Corp.

WITCTA008 6967940.00 2298030.00 05/01/97 0 550 International Technology Corp.

WITCTA009 6967862.00 2298234.00 08/23/01 0 353 Science Applications International Corp.

WITCTA011 6967455.26 2297357.31 04/30/97 0 550 International Technology Corp.

WITCTA013 6967017.00 2297752.00 08/23/01 0 116 Science Applications International Corp.

WITCTA014 6966904.57 2297418.51 08/23/01 0 108 Science Applications International Corp.

WITCTA015 6966333.00 2298395.00 08/23/01 4 67 Science Applications International Corp.

WITCTA016 6966239.00 2298062.00 10/08/99 0 80 HydroGeoLogic, Inc.

WITCTA017 6967298.15 2299305.78 10/17/02 0 52 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 0 4 Ellis Environmental Group

WITCTA020 6963895.32 2296316.79 04/29/97 0 7 International Technology Corp.

WITCTA022 6963651.00 2298744.00 04/29/97 0 2 International Technology Corp.

WITCTA025 6966005.00 2299534.00 10/15/02 4 78 Ellis Environmental Group

WITCTA034 6963956.68 2300951.49 10/17/00 4 2 HydroGeoLogic, Inc.

WITCTA037 6963424.00 2297784.00 04/29/97 0 58 International Technology Corp.

WITCTA039 6962339.77 2295415.41 05/01/97 0 39 International Technology Corp.

WITCTA040 6963260.00 2299515.00 05/01/03 0 50.8 Earth Tech Corporation

WJETA060 6963892.00 2290889.00 05/01/03 0 5,192 Earth Tech Corporation

WJETA061 6963915.00 2290873.00 05/03/02 0 58,000 Earth Tech Corporation

WP07–10B 6961277.46 2296040.45 07/07/99 3 300 HydroGeoLogic, Inc.

WSAICTA002 6964473.05 2294921.57 12/14/00 0 21 Science Applications International Corp.

WSAICTA003 6962921.08 2294630.39 06/19/02 0 21 Science Applications International Corp.

WSAICTA004 6963343.80 2293586.34 06/26/02 0 85 Science Applications International Corp.

WSAICTA005 6963578.03 2293587.28 06/26/02 0 107 Science Applications International Corp.

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations in the alluvial aquifer, used to 

compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued. 

Well

number Northing Easting Datecollected

PCE

concentration

(micrograms

per liter)

TCE

concentration

(micrograms

per liter)

Source
Table A5 69

WSAICTA007 6961971.36 2294861.23 06/26/02 0 380 Science Applications International Corp.

WSAICTA008 6961974.34 2294585.80 10/14/02 0 37 Ellis Environmental Group

WSAICTA010 6962655.14 2294341.87 05/01/03 0 1,767 Earth Tech Corporation

WSAICTA014 6963885.00 2293582.00 06/26/02 0 639 Science Applications International Corp.

WSAICTA015 6966805.36 2299042.92 09/24/01 9 1 Science Applications International Corp.

WSAICTA016 6966551.89 2299049.00 05/01/03 0 249 Earth Tech Corporation

WSAICTA023 6967077.62 2298656.36 10/03/01 17 5 Science Applications International Corp.

WUSGSTA011 6962668.00 2296825.00 01/15/03 0 140 U.S. Geological Survey

WUSGSTA014 6962826.00 2297306.00 01/15/03 0 44 U.S. Geological Survey

WUSGSTA015 6963054.00 2296591.00 01/15/03 0 130 U.S. Geological Survey

WUSGSTA018 6962566.00 2297413.00 01/15/03 0 54 U.S. Geological Survey

Table A5. Maximum historical tetrachloroethene (PCE) and trichloroethene (TCE) concentrations in the alluvial aquifer, used to 

compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base 

Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1983–2003—Continued. 

Well

number Northing Easting Datecollected

PCE

concentration

(micrograms

per liter)

TCE

concentration

(micrograms

per liter)

Source
70 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued. 

Well 

number Northing Easting Date 

collected

TCE

concentration

(micrograms

per liter)

Total DCE

concentration

(micrograms

per liter)

Source

CAR–RW1 6960869.00 2296755.00 09/16/99 2,800 400 HydroGeoLogic, Inc.

CAR–RW10 6961279.06 2296078.88 09/16/99 3,100 350 HydroGeoLogic, Inc.

CAR–RW11 6961412.39 2296075.74 09/16/99 2,500 320 HydroGeoLogic, Inc.

CAR–RW12 6961192.46 2295933.72 09/16/99 3,100 460 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 09/16/99 2,800 350 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 09/17/99 2,900 330 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 09/16/99 1,400 240 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 09/17/99 2,900 390 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 09/16/99 3,800 380 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 09/17/99 3,200 330 HydroGeoLogic, Inc.

F–204 6965223.00 2290634.70 11/10/95 0 .91 Jacobs Engineering Group

F–209 6969007.27 2290901.72 05/05/02 2.3 1.6 Earth Tech Corporation

F–214 6966040.04 2289864.00 07/11/95 190,000 85,000 Jacobs Engineering Group

F–216 6965776.18 2290219.93 10/08/95 20 14 Jacobs Engineering Group

F–217 6965959.98 2290109.05 01/27/00 170 1,110 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.29 2291474.21 04/22/95 60,000 1,700 Jacobs Engineering Group

FT08–11A 6962321.00 2295878.00 07/14/95 1 1 Law Environmental

FT08–11B 6962034.00 2295931.00 10/19/95 5 4 Law Environmental

FT09–12B 6960709.31 2295697.41 10/18/95 28 7 Law Environmental

FT09–12C 6960590.30 2295771.51 10/28/97 5 60 HydroGeoLogic, Inc.

FT09–12E 6960701.08 2295821.16 02/27/02 4.6 5.54 HydroGeoLogic, Inc.

GMI–04–01M 6960931.00 2296729.00 07/14/97 1,400 280 HydroGeoLogic, Inc.

GMI–22–01M 6965122.22 2297689.15 07/16/95 14 21 Law Environmental

GMI–22–03M 6966219.92 2298539.37 01/26/98 76 99 HydroGeoLogic, Inc.

GMI–22–04M 6967250.52 2297341.00 05/23/94 780 48 Geo-Marine, Inc.

GMI–22–06M 6967004.48 2298186.58 05/23/94 660 74 Geo-Marine, Inc.

HM–10 6965810.91 2290121.80 10/08/95 22 4.5 Jacobs Engineering Group

HM–110 6963667.53 2293163.24 10/30/94 23 2.1 Jacobs Engineering Group

HM–111 6963624.05 2293266.53 10/10/95 19 3.2 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 10/12/95 14,000 150 Jacobs Engineering Group

HM–113 6964677.00 2293133.60 10/10/95 470 265 Jacobs Engineering Group

HM–114 6963912.10 2294352.00 04/10/01 560 81 HydroGeoLogic, Inc.

HM–116 6966411.43 2294283.69 05/01/03 416 18 Earth Tech Corporation

HM–118 6968035.19 2294780.47 01/31/92 180 3 Jacobs Engineering Group

HM–123 6961638.50 2295272.60 04/05/00 3,100 554 HydroGeoLogic, Inc.

HM–126 6963121.05 2294300.23 11/14/95 3,100 96 Jacobs Engineering Group

HM–17 6963993.31 2290451.65 10/31/95 2,400 27 Jacobs Engineering Group

HM–29 6966014.89 2290711.88 01/15/03 270 1.2 Earth Tech Corporation

HM–31 6963114.44 2291505.33 10/23/01 270 66 U.S. Air Force, Center for Environmental Excellence

HM–36 6965484.00 2289786.00 11/03/98 9.23 8.77 Jacobs Engineering Group

HM–59 6966811.00 2291469.61 01/15/03 .25 6.1 Earth Tech Corporation

HM–64 6966406.97 2291114.57 10/30/95 23 220 Jacobs Engineering Group

HM–7 6966159.99 2290135.86 01/27/00 0 1 U.S. Air Force, Center for Environmental Excellence

HM–71 6966470.35 2292457.39 05/27/93 370 14 Jacobs Engineering Group

HM–88 6964479.91 2291919.17 10/25/01 6,400 180 U.S. Air Force, Center for Environmental Excellence

HM–89 6964470.44 2292084.17 09/13/00 1,000 500 U.S. Air Force, Center for Environmental Excellence

HM–90 6965640.09 2292457.85 05/21/93 5.9 1.5 Jacobs Engineering Group

HM–91 6966174.30 2292586.29 06/04/93 450 15 Jacobs Engineering Group

HM–95 6965442.59 2293156.22 10/24/01 2,200 120 U.S. Air Force, Center for Environmental Excellence

HM–96 6966507.03 2293168.95 01/15/03 230 2.1 Earth Tech Corporation

Table A6

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
Table A6 71

HM–97 6966884.14 2293158.51 05/26/93 330 12 Jacobs Engineering Group

ITMW–01T 6961062.05 2298967.00 04/10/00 8 3 HydroGeoLogic, Inc.

LF04–02 6961113.06 2296309.10 05/05/03 140 5.4 HydroGeoLogic, Inc.

LF04–03 6961064.00 2296306.00 09/16/99 2,700 370 HydroGeoLogic, Inc.

LF04–04 6960941.63 2297165.64 01/13/96 0 359 Law Environmental

LF04–10 6960411.83 2297078.91 04/23/97 2 1 CH2M Hill

LF04–4C 6960600.00 2296588.00 10/06/99 10 7 HydroGeoLogic, Inc.

LF04–4D 6960828.00 2296412.00 06/20/02 100 40.1 HydroGeoLogic, Inc.

LF05–01 6962728.35 2294577.83 06/19/02 62 8 Science Applications International Corp.

LF05–02 6962653.12 2295278.95 01/24/97 115 221 CH2M Hill

LF05–18 6961555.64 2297075.43 01/22/97 970 293 CH2M Hill

LF05–19 6961239.89 2297461.35 07/22/99 96 1 HydroGeoLogic, Inc.

LF05–5B 6961901.56 2296078.25 10/16/02 1 1,126 Ellis Environmental Group

LF05–5D 6961739.00 2295754.00 01/14/96 1,110 453 Law Environmental

LF05–5G 6961558.00 2296690.00 07/07/99 920 190 HydroGeoLogic, Inc.

LF05–5H 6961732.39 2296340.79 06/20/02 68 640 HydroGeoLogic, Inc.

LSA1628–3 6967993.10 2297791.30 10/29/97 320 49 HydroGeoLogic, Inc.

MW–19 6963513.00 2295369.00 08/22/01 156 38 Science Applications International Corp.

MW–53 6964378.00 2296200.00 10/08/02 15 1 Ellis Environmental Group

MW–IT–01T 6961062.00 2298967.00 11/05/98 18.5 8.84 Jacobs Engineering Group

RW–11U 6965385.00 2292586.20 07/30/94 6,900 1,306 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 12,000 1,800 U.S. Air Force, Center for Environmental Excellence

SPOT35–8 6966428.55 2296970.16 04/07/00 25 96 HydroGeoLogic, Inc.

ST14–W09 6963472.00 2299550.00 10/18/95 6 9 Law Environmental

ST14–W15 6963316.00 2299923.00 05/01/03 0 1.8 Earth Tech Corporation

T8 6965421.00 2289949.00 01/14/02 0 2 U.S. Air Force, Center for Environmental Excellence

T9 6965551.00 2289993.00 01/14/02 1 10 U.S. Air Force, Center for Environmental Excellence

USGS06T 6963763.00 2297542.08 10/19/95 20 1 Law Environmental

VEP–10 6965452.00 2289741.00 05/07/02 0 2.4 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 18 28.4 Earth Tech Corporation

VEP–12 6965492.14 2289740.47 05/08/02 260 233 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/08/02 270 220 Earth Tech Corporation

VEP–14 6965532.35 2289740.23 05/08/02 180 250 Earth Tech Corporation

VEP–15 6965572.27 2289739.27 05/09/02 60 87.2 Earth Tech Corporation

VEP–16 6965593.48 2289739.28 05/09/02 0 12 Earth Tech Corporation

VEP–18 6965631.89 2289739.19 05/09/02 5.9 594 Earth Tech Corporation

VEP–18B 6965652.25 2289740.40 05/09/02 4.2 469 Earth Tech Corporation

VEP–19 6965673.36 2289738.41 05/09/02 19 36 Earth Tech Corporation

VEP–20 6965692.62 2289738.81 05/10/02 0 19.9 Earth Tech Corporation

VEP–21 6965885.28 2289766.47 05/11/02 9.4 12.4 Earth Tech Corporation

VEP–22 6965904.64 2289772.36 05/11/02 23 30.9 Earth Tech Corporation

VEP–23 6965923.82 2289776.40 05/11/02 20 33.4 Earth Tech Corporation

VEP–24 6965947.42 2289785.33 05/11/02 60 242 Earth Tech Corporation

VEP–25 6965961.57 2289792.04 05/11/02 85 395 Earth Tech Corporation

VEP–26 6965979.44 2289801.00 05/15/03 1,780 1,323 Shaw Environmental

VEP–27 6965996.42 2289811.11 05/12/02 0 5,020 Earth Tech Corporation

VEP–28 6966006.35 2289828.89 05/12/02 0 603 Earth Tech Corporation

VEP–29 6966014.37 2289844.00 05/15/03 0 351,630 Shaw Environmental

VEP–3 6966027.00 2289825.00 05/12/02 4.7 850 Earth Tech Corporation

VEP–31 6966040.69 2289879.41 05/13/02 4.9 214 Earth Tech Corporation

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued. 

Well 

number Northing Easting Date collected

TCE

concentration

(micrograms

per liter)

Total DCE

concentration

(micrograms

per liter)

Source
72 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

VEP–33 6966075.62 2289893.21 05/14/02 0 133 Earth Tech Corporation

VEP–35 6966114.00 2289901.00 05/14/02 4.3 2,200 Earth Tech Corporation

VEP–36 6966135.75 2289905.70 05/14/02 11 959 Earth Tech Corporation

VEP–37 6966155.08 2289906.66 05/14/02 170 412 Earth Tech Corporation

VEP–4 6966050.33 2289838.40 05/15/03 0 24 Shaw Environmental

VEP–40 6966096.49 2289877.53 05/13/02 0 10.3 Earth Tech Corporation

VEP–41 6966067.00 2289850.00 05/13/02 66 1,300 Earth Tech Corporation

VEP–9 6965432.00 2289741.00 05/07/02 0 1.2 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 1.9 25.1 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 1.6 21.2 Earth Tech Corporation

W–129 6965935.87 2289777.80 05/12/93 58 55.6 Jacobs Engineering Group

W–130 6966042.89 2289868.15 06/14/93 490,000 48,000 Jacobs Engineering Group

W–133U 6963349.00 2290609.00 06/06/93 0 12 Jacobs Engineering Group

W–137 6963499.00 2290968.00 09/16/91 76 16 Chem-Nuclear Geotech, Inc.

W–147 6965824.00 2290711.00 01/15/03 .15 17 Earth Tech Corporation

W–149 6965190.70 2292456.97 05/06/01 7,800 510 U.S. Air Force, Center for Environmental Excellence

W–151 6964980.90 2292475.30 05/25/93 500 25 Jacobs Engineering Group

W–156 6964824.12 2292815.02 05/27/93 6,400 170 Jacobs Engineering Group

W–160 6963448.68 2291368.51 01/24/97 553 471.2 Jacobs Engineering Group

WCHMHTA004 6967949.00 2295041.00 09/26/01 54 2 Science Applications International Corp.

WCHMHTA006 6966690.11 2295406.97 05/01/03 263 .8 Earth Tech Corporation

WCHMHTA008 6967889.89 2295597.48 04/11/00 27 2 HydroGeoLogic, Inc.

WCHMHTA009 6968444.69 2296663.99 04/10/00 430 6 HydroGeoLogic, Inc.

WCHMHTA010 6967640.08 2296398.80 05/01/03 387 1.1 Earth Tech Corporation

WCHMHTA011 6969295.20 2297328.38 09/26/01 223 4 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 12 5.2 Earth Tech Corporation

WCOETA002 6962944.00 2296763.00 01/01/03 96 15 U.S. Geological Survey

WCOETA004 6962828.00 2296675.00 07/01/03 160 31 U.S. Geological Survey

WCOETA006 6962928.00 2296921.00 07/01/02 170 31 U.S. Geological Survey

WCOETA010 6962696.00 2296798.00 02/01/98 556.8 83.42 U.S. Geological Survey

WHGLFE001 6961575.00 2296063.00 06/19/02 700 424 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 1,100 526 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 3.3 895.9 HydroGeoLogic, Inc.

WHGLFE004 6960785.00 2295825.00 06/19/02 0 18 HydroGeoLogic, Inc.

WHGLRW015 6960871.43 2298662.64 07/28/99 46 13 HydroGeoLogic, Inc.

WHGLTA003 6961043.88 2298029.84 04/14/99 27 7 HydroGeoLogic, Inc.

WHGLTA004 6962943.38 2295760.62 04/23/99 1,300 125 HydroGeoLogic, Inc.

WHGLTA009 6965211.65 2297528.70 05/01/03 45 3.4 Earth Tech Corporation

WHGLTA010 6965580.03 2296770.93 10/31/00 14 3 HydroGeoLogic, Inc.

WHGLTA012 6965920.84 2297740.00 10/10/02 0 24 Ellis Environmental Group

WHGLTA014 6966295.34 2297373.92 10/27/00 36 250 HydroGeoLogic, Inc.

WHGLTA025 6961608.26 2298942.63 11/05/99 9 2 HydroGeoLogic, Inc.

WHGLTA028 6967761.00 2297451.00 04/17/02 360 206 Ellis Environmental Group

WHGLTA029 6965736.00 2298574.00 10/16/02 0 1 Ellis Environmental Group

WHGLTA043 6961771.99 2297021.32 01/04/01 20 4 HydroGeoLogic, Inc.

WHGLTA044 6961721.40 2297347.37 10/17/02 0 4 Ellis Environmental Group

WHGLTA045 6961321.90 2298368.80 04/18/02 3 1 Ellis Environmental Group

WHGLTA046 6961298.49 2296089.68 02/26/02 2,300 515 HydroGeoLogic, Inc.

WHGLTA048 6960916.20 2298714.83 10/15/02 3 1 Earth Tech Corporation

WHGLTA050 6963013.36 2296420.09 04/06/01 170 31 HydroGeoLogic, Inc.

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued. 

Well 

number Northing Easting Date collected

TCE

concentration

(micrograms

per liter)

Total DCE

concentration

(micrograms

per liter)

Source
Table A6 73

WHGLTA051 6962894.90 2296247.12 04/06/01 170 32 HydroGeoLogic, Inc.

WHGLTA052 6962769.45 2296098.07 04/06/01 300 63 HydroGeoLogic, Inc.

WHGLTA054 6960748.26 2295541.09 02/20/01 93 23 HydroGeoLogic, Inc.

WHGLTA056 6960787.36 2295827.62 06/13/01 58 16 HydroGeoLogic, Inc.

WHGLTA060 6965619.32 2298210.18 11/26/01 0 43 HydroGeoLogic, Inc.

WHGLTA062 6965663.00 2298317.27 11/26/01 0 15 HydroGeoLogic, Inc.

WHGLTA063 6965677.07 2298270.14 11/27/01 0 3 HydroGeoLogic, Inc.

WHGLTA064 6965075.48 2298351.15 07/23/01 15 13 HydroGeoLogic, Inc.

WHGLTA065 6960593.00 2295633.00 12/06/01 5 312 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 42 13 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 05/05/03 770 94.8 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 06/19/02 1,600 453 HydroGeoLogic, Inc.

WHGLTA072 6961283.00 2296102.00 06/18/02 1,800 318 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 05/05/03 3,200 77 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 06/18/02 2,100 447 HydroGeoLogic, Inc.

WHGLTA075 6961072.00 2295934.00 05/05/03 0 280 HydroGeoLogic, Inc.

WHGLTA076 6961086.00 2295934.00 06/17/02 1,700 517 HydroGeoLogic, Inc.

WHGLTA077 6960785.00 2295776.00 06/20/02 65 24.5 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 7 14 Ellis Environmental Group

WHGLTA201 6963198.14 2298660.88 05/21/98 15 2 HydroGeoLogic, Inc.

WHGLTA202 6963326.21 2298832.59 12/14/98 16 2 HydroGeoLogic, Inc.

WHGLTA203 6963059.00 2298401.00 05/13/98 4 27 HydroGeoLogic, Inc.

WHGLTA204 6963625.62 2298104.66 09/23/98 58 8 HydroGeoLogic, Inc.

WHGLTA302 6962603.00 2294422.00 05/07/98 1,400 1,142 HydroGeoLogic, Inc.

WHGLTA303 6962351.00 2294401.00 06/21/02 206 84 HydroGeoLogic, Inc.

WHGLTA601 6962753.00 2297473.69 04/19/99 150 29 HydroGeoLogic, Inc.

WHGLTA602 6962752.66 2297625.01 12/08/98 110 26 HydroGeoLogic, Inc.

WHGLTA603 6962713.38 2297727.19 04/19/02 0 7 Ellis Environmental Group

WHGLTA604 6963195.00 2297530.00 09/24/98 160 23 HydroGeoLogic, Inc.

WHGLTA701 6961835.73 2295332.86 09/28/98 4,600 975 HydroGeoLogic, Inc.

WHGLTA702 6961920.00 2295882.00 02/21/01 4 37 HydroGeoLogic, Inc.

WHGLTA703 6961680.70 2295741.23 12/16/98 97 17 HydroGeoLogic, Inc.

WHGLTA704 6962141.07 2295831.51 05/19/98 13 39 HydroGeoLogic, Inc.

WHGLTA705 6962003.00 2296027.00 02/15/01 1 8 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 02/16/01 3 9 HydroGeoLogic, Inc.

WHGLTA708 6962019.93 2295647.18 02/19/01 12 17 HydroGeoLogic, Inc.

WHGLTA709 6961934.71 2295750.93 02/19/01 110 194 HydroGeoLogic, Inc.

WHGLTA801 6962790.06 2295857.80 04/06/01 150 229 HydroGeoLogic, Inc.

WITCTA004 6968940.00 2297491.00 05/01/03 49.4 1.7 Earth Tech Corporation

WITCTA005 6968459.46 2298167.79 04/28/97 310 93 International Technology Corp.

WITCTA006 6968427.00 2298263.00 05/02/97 25 110 International Technology Corp.

WITCTA009 6967862.00 2298234.00 08/23/01 353 28 Science Applications International Corp.

WITCTA012 6967348.77 2298224.39 04/28/97 6 92 International Technology Corp.

WITCTA013 6967017.00 2297752.00 04/28/97 330 50 International Technology Corp.

WITCTA014 6966904.57 2297418.51 04/28/97 92 15 International Technology Corp.

WITCTA015 6966333.00 2298395.00 08/23/01 68 225 Science Applications International Corp.

WITCTA016 6966239.00 2298062.00 04/29/97 29 72 International Technology Corp.

WITCTA017 6967298.15 2299305.78 10/17/02 52 28 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 4 1 Ellis Environmental Group

WITCTA025 6966005.00 2299534.00 04/09/02 100 139 Ellis Environmental Group

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued. 

Well 

number Northing Easting Date collected

TCE

concentration

(micrograms

per liter)

Total DCE

concentration

(micrograms

per liter)

Source
74 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WITCTA037 6963424.00 2297784.00 04/29/97 58 8 International Technology Corp.

WITCTA039 6962339.77 2295415.41 05/01/97 39 210 International Technology Corp.

WITCTA040 6963260.00 2299515.00 04/05/01 58 11 HydroGeoLogic, Inc.

WJETA501 6962953.00 2296722.00 02/01/98 326.4 45.35 U.S. Geological Survey

WJETA502 6962955.00 2296726.00 06/01/98 720 101.1 U.S. Geological Survey

WJETA503 6962957.00 2296723.00 02/01/98 345.6 40.35 U.S. Geological Survey

WJETA504 6962911.00 2296817.00 10/01/02 170 28 U.S. Geological Survey

WJETA505 6962911.00 2296820.00 02/01/98 480 68.02 U.S. Geological Survey

WJETA507 6962835.00 2296843.00 02/01/98 345.6 42.75 U.S. Geological Survey

WJETA508 6962836.00 2296841.00 02/01/98 288 43.19 U.S. Geological Survey

WJETA509 6962837.00 2296842.00 02/01/98 316.8 42.75 U.S. Geological Survey

WJETA510 6962680.00 2296812.00 02/01/98 40.8 97.73 U.S. Geological Survey

WJETA511 6962679.00 2296809.00 01/01/01 64 81.2 U.S. Geological Survey

WJETA512 6962682.00 2296810.00 01/01/01 150 56.6 U.S. Geological Survey

WJETA513 6962998.00 2296754.00 02/01/98 489.6 62.97 U.S. Geological Survey

WJETA514 6962864.00 2296751.00 10/01/02 180 42 U.S. Geological Survey

WJETA515 6962863.00 2296894.00 02/01/98 403.2 60.47 U.S. Geological Survey

WJETA516 6962969.00 2296860.00 02/01/98 489.6 73.1 U.S. Geological Survey

WJETA517 6962866.00 2296714.00 02/01/98 345.6 47.78 U.S. Geological Survey

WJETA518 6962950.00 2296714.00 02/01/98 412.8 60.47 U.S. Geological Survey

WJETA519 6962842.00 2296754.00 02/01/98 326.4 42.78 U.S. Geological Survey

WJETA520 6962879.00 2296810.00 02/01/98 595.2 45.34 U.S. Geological Survey

WJETA521 6962921.00 2296867.00 01/01/04 110 16 U.S. Geological Survey

WJETA522 6962871.00 2296834.00 02/01/98 345.6 42.82 U.S. Geological Survey

WJETA523 6962887.00 2296845.00 02/01/98 681.6 97.6 U.S. Geological Survey

WJETA524 6962818.00 2296807.00 02/01/98 336 42.82 U.S. Geological Survey

WJETA525 6962800.00 2296820.00 02/01/98 134.4 25.18 U.S. Geological Survey

WJETA526 6962778.00 2296826.00 02/01/98 355.2 58.03 U.S. Geological Survey

WJETA527 6962856.00 2296937.00 02/01/98 451.2 60.1 U.S. Geological Survey

WJETA528 6962815.00 2296880.00 02/01/98 249.6 35.32 U.S. Geological Survey

WJETA529 6962759.00 2296997.00 02/01/98 364.8 55.42 U.S. Geological Survey

WL–090JETA 6963983.92 2291896.50 07/28/98 158 230.6 Jacobs Engineering Group

WL–091JETA 6964268.00 2291919.00 07/28/98 1,400 111 Jacobs Engineering Group

WP07–10B 6961277.46 2296040.45 05/05/03 1,500 36.2 HydroGeoLogic, Inc.

WSAICTA002 6964473.05 2294921.57 12/14/00 21 1 Science Applications International Corp.

WSAICTA003 6962921.08 2294630.39 12/11/00 1,100 410 Science Applications International Corp.

WSAICTA004 6963343.80 2293586.34 12/14/00 270 9 Science Applications International Corp.

WSAICTA005 6963578.03 2293587.28 12/14/00 600 11 Science Applications International Corp.

WSAICTA007 6961971.36 2294861.23 05/23/02 186 56 Science Applications International Corp.

WSAICTA008 6961974.34 2294585.80 04/11/02 200 109 Ellis Environmental Group

WSAICTA010 6962655.14 2294341.87 05/01/03 1,767 10.2 Earth Tech Corporation

WSAICTA014 6963885.00 2293582.00 06/26/02 639 50 Science Applications International Corp.

WSAICTA015 6966805.36 2299042.92 09/24/01 1 17 Science Applications International Corp.

WSAICTA016 6966551.89 2299049.00 05/07/02 220 53 Earth Tech Corporation

WSAICTA023 6967077.62 2298656.36 10/03/01 5 77 Science Applications International Corp.

WUSGSTA001 6962644.00 2297002.00 02/01/98 393.6 62.97 U.S. Geological Survey

WUSGSTA003 6961872.00 2296987.00 06/01/98 16 4.6 U.S. Geological Survey

WUSGSTA004 6962085.00 2297504.00 02/01/98 278.4 59.65 U.S. Geological Survey

WUSGSTA005 6961955.00 2297925.00 02/01/98 58.8 5.3 U.S. Geological Survey

WUSGSTA006 6961670.00 2298251.00 02/01/98 3.49 12.2 U.S. Geological Survey

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued. 

Well 

number Northing Easting Date collected

TCE

concentration

(micrograms

per liter)

Total DCE

concentration

(micrograms

per liter)

Source
Table A6 75

WUSGSTA007 6962684.00 2298206.00 02/01/98 240 68.74 U.S. Geological Survey

WUSGSTA008 6962636.00 2296832.00 02/01/98 33.6 4.74 U.S. Geological Survey

WUSGSTA009 6962766.00 2296661.00 01/01/00 1.2 19.82 U.S. Geological Survey

WUSGSTA010 6962707.00 2296719.00 02/01/98 163.2 143.77 U.S. Geological Survey

WUSGSTA011 6962668.00 2296825.00 01/15/03 140 5 U.S. Geological Survey

WUSGSTA012 6962787.00 2297104.00 02/01/98 460.8 60.54 U.S. Geological Survey

WUSGSTA013 6962745.00 2297215.00 02/01/98 268.8 55.7 U.S. Geological Survey

WUSGSTA014 6962826.00 2297306.00 01/15/03 44 14.5 U.S. Geological Survey

WUSGSTA015 6963054.00 2296591.00 01/15/03 130 12 U.S. Geological Survey

WUSGSTA016 6963036.00 2296370.00 02/01/98 681.6 110.64 U.S. Geological Survey

WUSGSTA017 6962675.00 2296815.00 02/01/98 499.2 73.58 U.S. Geological Survey

WUSGSTA018 6962566.00 2297413.00 01/15/03 54 64.28 U.S. Geological Survey

WUSGSTA019 6963009.00 2297050.00 02/01/98 460.8 65.74 U.S. Geological Survey

WUSGSTA020 6962722.00 2296818.00 02/01/98 336 54.7 U.S. Geological Survey

WUSGSTA021 6962659.00 2296814.00 02/01/98 326.4 152.15 U.S. Geological Survey

WUSGSTA022 6962736.00 2296740.00 02/01/98 480 73.19 U.S. Geological Survey

WUSGSTA023 6962638.00 2296810.00 02/01/98 33.6 5.015 U.S. Geological Survey

Table A6. Maximum historical trichloroethene (TCE) and total 1,2-dichloroethene (total DCE) concentrations in the alluvial aquifer, used 

to compute parent-compound to daughter-product concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve 

Base Carswell Field (NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued. 

Well 

number Northing Easting Date collected

TCE

concentration

(micrograms

per liter)

Total DCE

concentration

(micrograms

per liter)

Source
76 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Date

collected

trans-DCE

concentration

(micrograms

per liter)

cis-DCE

concentration

(micrograms

per liter)

Source

CAR–RW1 6960869.00 2296755.00 09/16/99 51 400 HydroGeoLogic, Inc.

CAR–RW10 6961279.00 2296078.88 09/16/99 49 350 HydroGeoLogic, Inc.

CAR–RW11 6961412.50 2296075.74 09/16/99 66 320 HydroGeoLogic, Inc.

CAR–RW12 6961192.50 2295933.72 09/16/99 65 460 HydroGeoLogic, Inc.

CAR–RW2 6961223.00 2296673.00 09/16/99 63 350 HydroGeoLogic, Inc.

CAR–RW4 6961112.00 2296685.00 09/17/99 38 330 HydroGeoLogic, Inc.

CAR–RW5 6961318.00 2296638.00 09/16/99 85 240 HydroGeoLogic, Inc.

CAR–RW6 6961112.00 2296510.00 09/17/99 45 390 HydroGeoLogic, Inc.

CAR–RW8 6961214.00 2296306.00 09/16/99 54 380 HydroGeoLogic, Inc.

CAR–RW9 6961221.00 2297006.00 09/17/99 39 330 HydroGeoLogic, Inc.

F–204 6965223.00 2290634.70 11/10/95 0 .91 Jacobs Engineering Group

F–214 6966040.00 2289864.00 05/14/02 1,000 93,000 Earth Tech Corporation

F–216 6965776.00 2290219.93 10/08/95 0 14 Jacobs Engineering Group

F–217 6965960.00 2290109.05 01/27/00 10 1,100 U.S. Air Force, Center for Environmental Excellence

F–218 6964024.50 2291474.21 05/06/01 36 3,300 U.S. Air Force, Center for Environmental Excellence

FT08–11B 6962034.00 2295931.00 01/14/96 4 29 Law Environmental

FT09–12B 6960709.50 2295697.41 01/14/96 6 10 Law Environmental

FT09–12C 6960590.50 2295771.51 01/24/97 3 22 CH2M Hill

FT09–12E 6960701.00 2295821.16 12/05/01 5 14 HydroGeoLogic, Inc.

GMI–04–01M 6960931.00 2296729.00 10/29/97 41 240 HydroGeoLogic, Inc.

GMI–22–01M 6965122.00 2297689.15 07/16/95 0 21 Law Environmental

GMI–22–03M 6966220.00 2298539.37 07/16/95 49 27 Law Environmental

GMI–22–04M 6967250.50 2297341.00 07/19/99 10 72 HydroGeoLogic, Inc.

GMI–22–06M 6967004.50 2298186.58 05/23/94 48 26 Geo-Marine, Inc.

HM–10 6965811.00 2290121.80 04/29/95 1.1 12 Jacobs Engineering Group

HM–110 6963667.50 2293163.24 10/13/99 1 56 HydroGeoLogic, Inc.

HM–111 6963624.00 2293266.53 10/10/95 0 3.2 Jacobs Engineering Group

HM–112 6964218.00 2293142.65 04/06/00 5 200 HydroGeoLogic, Inc.

HM–113 6964677.00 2293133.60 01/20/96 480 120 Jacobs Engineering Group

HM–114 6963912.00 2294352.00 04/11/02 1 48 Ellis Environmental Group

HM–116 6966411.50 2294283.69 10/18/99 1 48 HydroGeoLogic, Inc.

HM–118 6968035.00 2294780.47 10/14/02 0 4 Ellis Environmental Group

HM–123 6961638.50 2295272.60 05/01/03 13 153 Earth Tech Corporation

HM–126 6963121.00 2294300.23 04/03/01 3 19 HydroGeoLogic, Inc.

HM–17 6963993.50 2290451.65 10/31/95 0 27 Jacobs Engineering Group

HM–31 6963114.50 2291505.33 05/05/02 6.1 43 Earth Tech Corporation

HM–36 6965484.00 2289786.00 04/27/00 4 54 U.S. Air Force, Center for Environmental Excellence

HM–59 6966811.00 2291469.61 01/15/03 0 6.1 Earth Tech Corporation

HM–64 6966407.00 2291114.57 10/30/95 0 220 Jacobs Engineering Group

HM–71 6966470.50 2292457.39 10/14/95 0 16 Jacobs Engineering Group

HM–88 6964480.00 2291919.17 04/27/00 4 270 U.S. Air Force, Center for Environmental Excellence

HM–89 6964470.50 2292084.17 09/13/00 0 500 U.S. Air Force, Center for Environmental Excellence

HM–90 6965640.00 2292457.85 05/21/93 0 1.7 Jacobs Engineering Group

HM–91 6966174.50 2292586.29 06/04/93 0 15 Jacobs Engineering Group

HM–95 6965442.50 2293156.22 10/24/01 1 120 U.S. Air Force, Center for Environmental Excellence

HM–96 6966507.00 2293168.95 01/15/03 1.2 .9 Earth Tech Corporation

HM–97 6966884.00 2293158.51 05/26/93 0 12 Jacobs Engineering Group

ITMW–01T 6961062.00 2298967.00 10/08/98 1 8 HydroGeoLogic, Inc.

LF04–02 6961113.00 2296309.10 05/05/03 2.8 2.6 HydroGeoLogic, Inc.

LF04–03 6961064.00 2296306.00 09/16/99 53 370 HydroGeoLogic, Inc.

LF04–04 6960941.50 2297165.64 01/13/96 0 359 Law Environmental

LF04–4C 6960600.00 2296588.00 04/13/99 2 6 HydroGeoLogic, Inc.

LF04–4D 6960828.00 2296412.00 06/20/02 1.1 39 HydroGeoLogic, Inc.

LF05–01 6962728.50 2294577.83 06/19/02 3 5 Science Applications International Corp.

LF05–02 6962653.00 2295278.95 01/24/97 28 199 CH2M Hill

Table A7

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field (NAS–

JRB) study area, Fort Worth, Texas, 1991–2003. 

[Northing, north state plane coordinate of north-south distance, in feet, from reference location (N6561666.67); Easting, east state plane coordinate of east-west 

distance, in feet, from reference location (E1968500.00)] 
Table A7 77

LF05–18 6961555.50 2297075.43 10/29/97 41 310 HydroGeoLogic, Inc.

LF05–19 6961240.00 2297461.35 01/25/97 15 293 CH2M Hill

LF05–5B 6961901.50 2296078.25 10/16/02 26 1,100 Ellis Environmental Group

LF05–5D 6961739.00 2295754.00 04/12/95 6 14 Law Environmental

LF05–5G 6961558.00 2296690.00 04/06/00 27 210 HydroGeoLogic, Inc.

LF05–5H 6961732.50 2296340.79 05/05/03 62 85 HydroGeoLogic, Inc.

LSA1628–3 6967993.00 2297791.30 01/14/96 7 10 Law Environmental

MW–19 6963513.00 2295369.00 08/22/01 1 38 Science Applications International Corp.

MW–IT–01T 6961062.00 2298967.00 11/05/98 .99 7.85 Jacobs Engineering Group

RW–11U 6965385.00 2292586.20 07/30/94 6 1,300 U.S. Air Force, Center for Environmental Excellence

RW–1U 6965269.00 2292468.70 01/19/93 0 1,800 U.S. Air Force, Center for Environmental Excellence

RW–3UR 6964444.00 2292090.10 12/14/00 8 440 U.S. Air Force, Center for Environmental Excellence

RW–8UR 6964339.00 2291990.60 12/14/00 0 510 U.S. Air Force, Center for Environmental Excellence

SPOT35–8 6966428.50 2296970.16 04/07/00 53 43 HydroGeoLogic, Inc.

ST14–W09 6963472.00 2299550.00 10/18/95 2 7 Law Environmental

ST14–W15 6963316.00 2299923.00 05/01/03 0 1.8 Earth Tech Corporation

T8 6965421.00 2289949.00 01/14/02 0 2 U.S. Air Force, Center for Environmental Excellence

T9 6965551.00 2289993.00 01/14/02 1 9 U.S. Air Force, Center for Environmental Excellence

VEP–10 6965452.00 2289741.00 05/07/02 0 2.4 Earth Tech Corporation

VEP–11 6965472.00 2289741.00 05/08/02 2.4 26 Earth Tech Corporation

VEP–12 6965492.00 2289740.47 05/08/02 24 210 Earth Tech Corporation

VEP–13 6965512.00 2289740.00 05/08/02 15 220 Earth Tech Corporation

VEP–14 6965532.50 2289740.23 05/08/02 11 240 Earth Tech Corporation

VEP–15 6965572.50 2289739.27 05/09/02 2.2 85 Earth Tech Corporation

VEP–16 6965593.50 2289739.28 05/09/02 0 12 Earth Tech Corporation

VEP–18 6965632.00 2289739.19 05/09/02 29 570 Earth Tech Corporation

VEP–18B 6965652.00 2289740.40 10/22/02 50 500 Earth Tech Corporation

VEP–19 6965673.50 2289738.41 05/09/02 8 28 Earth Tech Corporation

VEP–20 6965692.50 2289738.81 05/10/02 1.9 18 Earth Tech Corporation

VEP–21 6965885.50 2289766.47 05/11/02 1.4 11 Earth Tech Corporation

VEP–22 6965904.50 2289772.36 05/11/02 4.9 26 Earth Tech Corporation

VEP–23 6965924.00 2289776.40 05/11/02 5.4 28 Earth Tech Corporation

VEP–24 6965947.50 2289785.33 05/11/02 12 230 Earth Tech Corporation

VEP–25 6965961.50 2289792.04 05/11/02 16 380 Earth Tech Corporation

VEP–26 6965979.50 2289801.00 05/15/03 1,150 173 Shaw Environmental

VEP–27 6965996.50 2289811.11 05/12/02 120 4,900 Earth Tech Corporation

VEP–28 6966006.50 2289828.89 05/12/02 23 510 Earth Tech Corporation

VEP–29 6966014.50 2289844.00 10/24/02 380 73,000 Earth Tech Corporation

VEP–3 6966027.00 2289825.00 05/12/02 22 850 Earth Tech Corporation

VEP–31 6966040.50 2289879.41 05/13/02 15 200 Earth Tech Corporation

VEP–32 6966058.50 2289884.99 05/13/02 5.6 39 Earth Tech Corporation

VEP–33 6966075.50 2289893.21 05/14/02 23 100 Earth Tech Corporation

VEP–35 6966114.00 2289901.00 05/14/02 140 2,200 Earth Tech Corporation

VEP–36 6966136.00 2289905.70 05/14/02 59 900 Earth Tech Corporation

VEP–37 6966155.00 2289906.66 05/14/02 51 380 Earth Tech Corporation

VEP–4 6966050.50 2289838.40 05/15/03 8 16 Shaw Environmental

VEP–40 6966096.50 2289877.53 05/13/02 1.4 8.9 Earth Tech Corporation

VEP–41 6966067.00 2289850.00 05/13/02 38 1,300 Earth Tech Corporation

VEP–9 6965432.00 2289741.00 05/07/02 0 1.2 Earth Tech Corporation

VEPT–1 6965717.00 2289740.00 05/09/02 2.1 23 Earth Tech Corporation

VEPT–2 6965739.00 2289741.00 05/10/02 2.2 19 Earth Tech Corporation

W–129 6965936.00 2289777.80 05/12/93 1.6 54 Jacobs Engineering Group

W–130 6966043.00 2289868.15 06/14/93 0 48,000 Jacobs Engineering Group

W–132 6966136.50 2289895.52 09/10/91 8 24 Chem-Nuclear Geotech, Inc.

W–133U 6963349.00 2290609.00 06/06/93 0 12 Jacobs Engineering Group

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

trans-DCE

concentration

(micrograms

per liter)

cis-DCE

concentration

(micrograms

per liter)

Source
78 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

W–137 6963499.00 2290968.00 01/25/97 0 83.6 Jacobs Engineering Group

W–147 6965824.00 2290711.00 01/15/03 0 17 Earth Tech Corporation

W–149 6965190.50 2292456.97 10/25/01 3 420 U.S. Air Force, Center for Environmental Excellence

W–151 6964981.00 2292475.30 05/25/93 0 25 Jacobs Engineering Group

W–156 6964824.00 2292815.02 09/14/00 0 440 U.S. Air Force, Center for Environmental Excellence

W–160 6963448.50 2291368.51 01/24/97 17.2 454 Jacobs Engineering Group

W7TAITC 6966050.00 2290097.00 01/26/00 10 2,400 U.S. Air Force, Center for Environmental Excellence

W9AWNITC 6965921.00 2289851.00 01/24/00 0 11,000 U.S. Air Force, Center for Environmental Excellence

WCHMHTA004 6967949.00 2295041.00 09/26/01 0 2 Science Applications International Corp.

WCHMHTA008 6967890.00 2295597.48 05/01/03 0 73 Earth Tech Corporation

WCHMHTA009 6968444.50 2296663.99 04/04/01 0 3 HydroGeoLogic, Inc.

WCHMHTA010 6967640.00 2296398.80 05/01/03 0 1.1 Earth Tech Corporation

WCHMHTA011 6969295.00 2297328.38 09/26/01 0 5 Science Applications International Corp.

WCHMHTA013 6967056.00 2300052.00 05/01/03 0 5.2 Earth Tech Corporation

WCOETA002 6962944.00 2296763.00 07/01/03 0 17 U.S. Geological Survey

WCOETA004 6962828.00 2296675.00 07/01/03 0 31 U.S. Geological Survey

WCOETA006 6962928.00 2296921.00 07/01/02 0 31 U.S. Geological Survey

WCOETA010 6962696.00 2296798.00 07/01/02 1.8 46 U.S. Geological Survey

WHGLFE001 6961575.00 2296063.00 06/19/02 24 400 HydroGeoLogic, Inc.

WHGLFE002 6961284.00 2296060.00 06/18/02 26 500 HydroGeoLogic, Inc.

WHGLFE003 6961079.00 2295934.00 06/17/02 5.9 890 HydroGeoLogic, Inc.

WHGLFE004 6960785.00 2295825.00 06/19/02 0 18 HydroGeoLogic, Inc.

WHGLRW015 6960871.50 2298662.64 10/24/00 0 17 HydroGeoLogic, Inc.

WHGLTA003 6961044.00 2298029.84 10/05/99 0 9 HydroGeoLogic, Inc.

WHGLTA004 6962943.50 2295760.62 10/18/99 7 100 HydroGeoLogic, Inc.

WHGLTA009 6965211.50 2297528.70 05/01/03 .4 3 Earth Tech Corporation

WHGLTA010 6965580.00 2296770.93 10/31/00 0 3 HydroGeoLogic, Inc.

WHGLTA012 6965921.00 2297740.00 04/10/02 14 18 Ellis Environmental Group

WHGLTA014 6966295.50 2297373.92 04/07/00 130 98 HydroGeoLogic, Inc.

WHGLTA028 6967761.00 2297451.00 04/17/02 16 190 Ellis Environmental Group

WHGLTA029 6965736.00 2298574.00 11/28/01 2 3 HydroGeoLogic, Inc.

WHGLTA043 6961772.00 2297021.32 05/01/03 13.5 104 Earth Tech Corporation

WHGLTA044 6961721.50 2297347.37 10/17/02 0 4 Ellis Environmental Group

WHGLTA045 6961322.00 2298368.80 04/18/02 0 1 Ellis Environmental Group

WHGLTA046 6961298.50 2296089.68 02/26/02 35 480 HydroGeoLogic, Inc.

WHGLTA048 6960916.00 2298714.83 05/01/03 0 108 Earth Tech Corporation

WHGLTA050 6963013.50 2296420.09 04/06/01 0 31 HydroGeoLogic, Inc.

WHGLTA051 6962895.00 2296247.12 10/16/02 1 67 Ellis Environmental Group

WHGLTA052 6962769.50 2296098.07 04/06/01 2 61 HydroGeoLogic, Inc.

WHGLTA054 6960748.50 2295541.09 10/11/02 68 39 Ellis Environmental Group

WHGLTA056 6960787.50 2295827.62 04/06/01 1 27 HydroGeoLogic, Inc.

WHGLTA060 6965619.50 2298210.18 07/20/01 12 38 HydroGeoLogic, Inc.

WHGLTA062 6965663.00 2298317.27 11/26/01 4 11 HydroGeoLogic, Inc.

WHGLTA063 6965677.00 2298270.14 11/27/01 2 1 HydroGeoLogic, Inc.

WHGLTA065 6960593.00 2295633.00 12/06/01 2 310 HydroGeoLogic, Inc.

WHGLTA067 6960876.00 2295733.00 12/02/01 0 13 HydroGeoLogic, Inc.

WHGLTA069 6961708.00 2296063.00 05/05/03 86 8.8 HydroGeoLogic, Inc.

WHGLTA070 6961576.00 2296056.00 05/05/03 93 430 HydroGeoLogic, Inc.

WHGLTA072 6961283.00 2296102.00 06/18/02 28 290 HydroGeoLogic, Inc.

WHGLTA073 6961283.00 2296167.00 06/18/02 15 190 HydroGeoLogic, Inc.

WHGLTA074 6961285.00 2296258.00 05/05/03 110 220 HydroGeoLogic, Inc.

WHGLTA075 6961072.00 2295934.00 06/17/02 2 1,000 HydroGeoLogic, Inc.

WHGLTA076 6961086.00 2295934.00 06/17/02 27 490 HydroGeoLogic, Inc.

WHGLTA077 6960785.00 2295776.00 06/20/02 1.5 23 HydroGeoLogic, Inc.

WHGLTA082 6964396.00 2296386.00 10/10/02 3 11 Ellis Environmental Group

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

trans-DCE

concentration

(micrograms

per liter)

cis-DCE

concentration

(micrograms

per liter)

Source
Table A7 79

WHGLTA201 6963198.00 2298660.88 12/09/98 1 4 HydroGeoLogic, Inc.

WHGLTA202 6963326.00 2298832.59 12/14/98 0 2 HydroGeoLogic, Inc.

WHGLTA203 6963059.00 2298401.00 09/23/98 9 11 HydroGeoLogic, Inc.

WHGLTA302 6962603.00 2294422.00 05/07/98 42 1,100 HydroGeoLogic, Inc.

WHGLTA303 6962351.00 2294401.00 05/08/98 46 1,100 HydroGeoLogic, Inc.

WHGLTA601 6962753.00 2297473.69 12/13/98 3 21 HydroGeoLogic, Inc.

WHGLTA602 6962752.50 2297625.01 12/08/98 4 22 HydroGeoLogic, Inc.

WHGLTA603 6962713.50 2297727.19 04/19/02 0 7 Ellis Environmental Group

WHGLTA604 6963195.00 2297530.00 12/14/98 0 19 HydroGeoLogic, Inc.

WHGLTA701 6961835.50 2295332.86 07/21/99 70 88 HydroGeoLogic, Inc.

WHGLTA702 6961920.00 2295882.00 05/20/98 17 220 HydroGeoLogic, Inc.

WHGLTA703 6961680.50 2295741.23 09/24/98 14 180 HydroGeoLogic, Inc.

WHGLTA704 6962141.00 2295831.51 10/15/99 2 7 HydroGeoLogic, Inc.

WHGLTA705 6962003.00 2296027.00 02/15/01 2 6 HydroGeoLogic, Inc.

WHGLTA706 6962146.00 2296031.00 07/13/00 1 20 HydroGeoLogic, Inc.

WHGLTA708 6962020.00 2295647.18 02/19/01 2 15 HydroGeoLogic, Inc.

WHGLTA709 6961934.50 2295750.93 02/19/01 34 160 HydroGeoLogic, Inc.

WHGLTA801 6962790.00 2295857.80 04/06/01 29 200 HydroGeoLogic, Inc.

WINTTA022 6964617.50 2292408.66 09/13/00 0 370 U.S. Air Force, Center for Environmental Excellence

WITCTA005 6968459.50 2298167.79 04/28/97 0 93 Jacobs Engineering Group

WITCTA006 6968427.00 2298263.00 05/02/97 0 110 Jacobs Engineering Group

WITCTA009 6967862.00 2298234.00 08/23/01 9 20 Science Applications International Corp.

WITCTA010 6967695.00 2298753.00 04/04/00 2 2 HydroGeoLogic, Inc.

WITCTA012 6967349.00 2298224.39 05/01/03 110 18.1 Earth Tech Corporation

WITCTA013 6967017.00 2297752.00 08/23/01 7 22 Science Applications International Corp.

WITCTA014 6966904.50 2297418.51 08/23/01 8 40 Science Applications International Corp.

WITCTA015 6966333.00 2298395.00 08/23/01 38 189 Science Applications International Corp.

WITCTA016 6966239.00 2298062.00 10/08/99 150 120 HydroGeoLogic, Inc.

WITCTA017 6967298.00 2299305.78 10/17/02 11 17 Earth Tech Corporation

WITCTA019 6963107.00 2298838.00 10/09/02 0 1 Ellis Environmental Group

WITCTA025 6966005.00 2299534.00 08/22/01 32 65 Science Applications International Corp.

WITCTA037 6963424.00 2297784.00 04/29/97 0 8 Jacobs Engineering Group

WITCTA039 6962340.00 2295415.41 05/01/97 0 210 Jacobs Engineering Group

WITCTA040 6963260.00 2299515.00 05/01/03 0 71 Earth Tech Corporation

WJETA043 6964667.50 2292227.72 09/12/00 0 350 U.S. Air Force, Center for Environmental Excellence

WJETA047 6964393.00 2292176.36 09/13/00 8 350 U.S. Air Force, Center for Environmental Excellence

WJETA083 6964204.50 2292903.92 12/20/00 4 110 U.S. Air Force, Center for Environmental Excellence

WJETA086 6965443.00 2292457.02 12/14/00 0 59 U.S. Air Force, Center for Environmental Excellence

WJETA087 6964208.00 2293100.00 09/14/00 0 200 U.S. Air Force, Center for Environmental Excellence

WJETA088 6964424.00 2293106.00 09/14/00 0 110 U.S. Air Force, Center for Environmental Excellence

WJETA501 6962953.00 2296722.00 02/01/98 .35 45 U.S. Geological Survey

WJETA502 6962955.00 2296726.00 02/01/98 .44 62.5 U.S. Geological Survey

WJETA503 6962957.00 2296723.00 02/01/98 .35 40 U.S. Geological Survey

WJETA504 6962911.00 2296817.00 01/01/02 5.8 45 U.S. Geological Survey

WJETA505 6962911.00 2296820.00 02/01/98 .52 67.5 U.S. Geological Survey

WJETA507 6962835.00 2296843.00 06/01/98 .4 80.4 U.S. Geological Survey

WJETA508 6962836.00 2296841.00 07/01/00 4.2 55 U.S. Geological Survey

WJETA509 6962837.00 2296842.00 06/01/98 .4 93.8 U.S. Geological Survey

WJETA510 6962680.00 2296812.00 01/01/04 9.7 46 U.S. Geological Survey

WJETA511 6962679.00 2296809.00 01/01/03 8.5 80 U.S. Geological Survey

WJETA512 6962682.00 2296810.00 05/01/99 10 126 U.S. Geological Survey

WJETA513 6962998.00 2296754.00 02/01/98 .47 62.5 U.S. Geological Survey

WJETA514 6962864.00 2296751.00 07/01/01 1.1 82 U.S. Geological Survey

WJETA515 6962863.00 2296894.00 01/01/02 .56 25 U.S. Geological Survey

WJETA516 6962969.00 2296860.00 02/01/98 .6 72.5 U.S. Geological Survey

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

trans-DCE

concentration

(micrograms

per liter)

cis-DCE

concentration

(micrograms

per liter)

Source
80 Subsurface Occurrence and Potential Source Areas of Chlorinated Ethenes, AFP4 and NAS–JRB, Fort Worth, Texas

WJETA517 6962866.00 2296714.00 01/01/00 0.99 75 U.S. Geological Survey

WJETA518 6962950.00 2296714.00 02/01/98 .47 60 U.S. Geological Survey

WJETA519 6962842.00 2296754.00 01/01/03 1.1 30 U.S. Geological Survey

WJETA520 6962879.00 2296810.00 02/01/98 .34 45 U.S. Geological Survey

WJETA521 6962921.00 2296867.00 02/01/98 .57 72.5 U.S. Geological Survey

WJETA522 6962871.00 2296834.00 02/01/98 .32 42.5 U.S. Geological Survey

WJETA523 6962887.00 2296845.00 02/01/98 .6 97 U.S. Geological Survey

WJETA524 6962818.00 2296807.00 01/01/00 .83 72 U.S. Geological Survey

WJETA525 6962800.00 2296820.00 02/01/98 .18 25 U.S. Geological Survey

WJETA526 6962778.00 2296826.00 02/01/98 .53 57.5 U.S. Geological Survey

WJETA527 6962856.00 2296937.00 07/01/02 1.2 16 U.S. Geological Survey

WJETA528 6962815.00 2296880.00 01/01/02 3.6 1.9 U.S. Geological Survey

WJETA529 6962759.00 2296997.00 01/01/00 1 110 U.S. Geological Survey

WL–090JETA 6963984.00 2291896.50 08/08/98 5.58 73.9 Jacobs Engineering Group

WL–091JETA 6964268.00 2291919.00 07/28/98 1.46 111 Jacobs Engineering Group

WL–101JETA 6965358.00 2292299.00 12/12/00 0 550 U.S. Air Force, Center for Environmental Excellence

WL–102JETA 6964786.00 2292815.37 01/22/01 2 210 U.S. Air Force, Center for Environmental Excellence

WL–104JETA 6964423.50 2292886.41 12/13/00 0 240 U.S. Air Force, Center for Environmental Excellence

WL–105JETA 6963930.00 2293101.42 12/13/00 0 180 U.S. Air Force, Center for Environmental Excellence

WL–106JETA 6963806.50 2293001.85 12/13/00 11 290 U.S. Air Force, Center for Environmental Excellence

WL–106PJETA 6964408.50 2291918.53 09/12/00 0 450 U.S. Air Force, Center for Environmental Excellence

WL–107JETA 6964701.50 2292815.04 12/13/00 0 370 U.S. Air Force, Center for Environmental Excellence

WL–107PJETA 6964270.50 2292104.81 09/12/00 0 36 U.S. Air Force, Center for Environmental Excellence

WL–111JETA 6965122.00 2292395.25 12/12/00 0 1,200 U.S. Air Force, Center for Environmental Excellence

WL–111PJETA 6965503.50 2292457.25 09/12/00 0 47 U.S. Air Force, Center for Environmental Excellence

WL–112PJETA 6965552.50 2292611.65 09/14/00 0 18 U.S. Air Force, Center for Environmental Excellence

WL–113JETA 6964978.00 2292461.75 12/12/00 0 86 U.S. Air Force, Center for Environmental Excellence

WL–113PJETA 6963993.00 2293299.90 09/13/00 0 240 U.S. Air Force, Center for Environmental Excellence

WL–115JETA 6964589.00 2292916.26 01/22/01 3 240 U.S. Air Force, Center for Environmental Excellence

WL–115PJETA 6964132.50 2292806.95 09/13/00 0 290 U.S. Air Force, Center for Environmental Excellence

WL–116JETA 6964026.00 2292914.56 12/13/00 0 190 U.S. Air Force, Center for Environmental Excellence

WL–116PJETA 6964862.50 2292604.32 09/14/00 0 190 U.S. Air Force, Center for Environmental Excellence

WL–117JETA 6963947.00 2293003.37 12/13/00 6 290 U.S. Air Force, Center for Environmental Excellence

WL–118JETA 6964485.50 2292811.17 12/13/00 0 310 U.S. Air Force, Center for Environmental Excellence

WL–119JETA 6964314.00 2292916.79 01/22/01 2 200 U.S. Air Force, Center for Environmental Excellence

WL–120JETA 6964238.00 2293001.62 12/20/00 2 210 U.S. Air Force, Center for Environmental Excellence

WL–121JETA 6963866.50 2293059.70 12/13/00 0 310 U.S. Air Force, Center for Environmental Excellence

WL–122JETA 6964091.50 2293038.73 12/13/00 0 360 U.S. Air Force, Center for Environmental Excellence

WL–124AJETA 6965108.00 2292368.00 01/22/01 0 310 U.S. Air Force, Center for Environmental Excellence

WL–127JETA 6964804.00 2292467.36 12/12/00 0 75 U.S. Air Force, Center for Environmental Excellence

WL–150JETA 6964352.50 2291866.76 12/12/00 0 250 U.S. Air Force, Center for Environmental Excellence

WL–153JETA 6964329.00 2291906.43 12/12/00 0 240 U.S. Air Force, Center for Environmental Excellence

WL–155JETA 6964315.00 2291929.84 12/12/00 0 310 U.S. Air Force, Center for Environmental Excellence

WL–158JETA 6964300.50 2291955.82 12/12/00 0 140 U.S. Air Force, Center for Environmental Excellence

WL–160JETA 6964290.00 2291969.86 12/20/00 2 280 U.S. Air Force, Center for Environmental Excellence

WL–161JETA 6964285.00 2291981.87 12/12/00 0 180 U.S. Air Force, Center for Environmental Excellence

WL–163JETA 6964274.50 2291998.95 12/12/00 0 180 U.S. Air Force, Center for Environmental Excellence

WL–164JETA 6964269.50 2292007.70 12/12/00 0 230 U.S. Air Force, Center for Environmental Excellence

WL–165JETA 6964259.50 2292024.31 12/12/00 0 400 U.S. Air Force, Center for Environmental Excellence

WL–166JETA 6964264.00 2292015.93 12/12/00 0 290 U.S. Air Force, Center for Environmental Excellence

WL–167JETA 6964254.00 2292033.79 12/12/00 0 370 U.S. Air Force, Center for Environmental Excellence

WL–169JETA 6964244.00 2292050.42 12/12/00 5 430 U.S. Air Force, Center for Environmental Excellence

WL–171JETA 6964234.00 2292067.54 12/12/00 2 110 U.S. Air Force, Center for Environmental Excellence

WL–174JETA 6964219.00 2292093.61 12/12/00 0 24 U.S. Air Force, Center for Environmental Excellence

WL–177JETA 6964202.00 2292120.93 12/12/00 0 16 U.S. Air Force, Center for Environmental Excellence

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

trans-DCE

concentration

(micrograms

per liter)

cis-DCE

concentration

(micrograms

per liter)

Source
Table A7 81

WP07–10B 6961277.50 2296040.45 05/05/03 34 2.2 HydroGeoLogic, Inc.

WSAICTA002 6964473.00 2294921.57 12/14/00 0 1 Science Applications International Corp.

WSAICTA003 6962921.00 2294630.39 12/11/00 29 410 Science Applications International Corp.

WSAICTA004 6963344.00 2293586.34 06/26/02 0 8 Science Applications International Corp.

WSAICTA005 6963578.00 2293587.28 06/26/02 0 18 Science Applications International Corp.

WSAICTA007 6961971.50 2294861.23 05/23/02 3 56 Science Applications International Corp.

WSAICTA008 6961974.50 2294585.80 09/25/01 6 43 Science Applications International Corp.

WSAICTA010 6962655.00 2294341.87 05/01/03 3.5 6.7 Earth Tech Corporation

WSAICTA014 6963885.00 2293582.00 09/25/01 1 101 Science Applications International Corp.

WSAICTA015 6966805.50 2299042.92 09/24/01 5 12 Science Applications International Corp.

WSAICTA016 6966552.00 2299049.00 10/17/02 44 53 Earth Tech Corporation

WSAICTA023 6967077.50 2298656.36 10/17/02 74 95 Earth Tech Corporation

WSAICTA025 6961666.50 2294798.23 10/03/01 1 2 Science Applications International Corp.

WUSGSTA001 6962644.00 2297002.00 02/01/98 .47 62.5 U.S. Geological Survey

WUSGSTA003 6961872.00 2296987.00 02/01/98 .67 3.35 U.S. Geological Survey

WUSGSTA004 6962085.00 2297504.00 02/01/98 3.17 56.48 U.S. Geological Survey

WUSGSTA005 6961955.00 2297925.00 02/01/98 .15 5.15 U.S. Geological Survey

WUSGSTA006 6961670.00 2298251.00 02/01/98 8.25 3.95 U.S. Geological Survey

WUSGSTA007 6962684.00 2298206.00 02/01/98 3.74 65 U.S. Geological Survey

WUSGSTA008 6962636.00 2296832.00 02/01/98 .19 4.55 U.S. Geological Survey

WUSGSTA009 6962766.00 2296661.00 01/01/00 .82 19 U.S. Geological Survey

WUSGSTA010 6962707.00 2296719.00 02/01/98 3.77 140 U.S. Geological Survey

WUSGSTA012 6962787.00 2297104.00 02/01/98 .54 60 U.S. Geological Survey

WUSGSTA013 6962745.00 2297215.00 02/01/98 .7 55 U.S. Geological Survey

WUSGSTA016 6963036.00 2296370.00 02/01/98 .64 110 U.S. Geological Survey

WUSGSTA017 6962675.00 2296815.00 01/01/00 2 96 U.S. Geological Survey

WUSGSTA019 6963009.00 2297050.00 02/01/98 .74 65 U.S. Geological Survey

WUSGSTA020 6962722.00 2296818.00 01/01/00 1.6 79 U.S. Geological Survey

WUSGSTA021 6962659.00 2296814.00 05/01/99 5 241 U.S. Geological Survey

WUSGSTA022 6962736.00 2296740.00 02/01/98 .89 72.3 U.S. Geological Survey

WUSGSTA023 6962638.00 2296810.00 02/01/98 .24 4.78 U.S. Geological Survey

Table A7. Maximum historical trans-1,2-dichloroethene (trans-DCE) and cis-1,2-dichloroethene (cis-DCE) concentrations in the alluvial 

aquifer, used to compute concentration ratios, Air Force Plant 4 (AFP4) and Naval Air Station-Joint Reserve Base Carswell Field

(NAS–JRB) study area, Fort Worth, Texas, 1991–2003—Continued.

Well

number Northing Easting Datecollected

trans-DCE

concentration

(micrograms

per liter)

cis-DCE

concentration

(micrograms

per liter)

Source
Prepared by the USGS Texas Water Science Center:

8027 Exchange Drive

Austin, TX 78754–4733

Information regarding water resources in Texas is available at 

http: //tx.usgs.gov/