~~e,·.",~c. lI~Wi;!.Ni$i§@iiJ';1(#j3itM@®3ti§@ii

July 28, 1995

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Submitted by:

Submitted to:

U.S. Army Corps of Engineers

Volume I

Repbrts, Figures, Tabl~s, and Attachments 1 through 4

ENVIRONMENTAL'SERVICES

FINAL

Phase I Remedial Investigationl

.FeasibilitY.Study Report

Defe~se Personnel Support Cent~r

Philadelphia, Pennsylvania

KemROn

ENVIRONMENTAL SERVICES
TABLE OF CONTENTS

. - REMEDIAL INVESTIGATION· PHASE I

DEFENSE PERSONEL SUPPORT CENTER

PHILADELPHIA, PENNSYLVANIA

Page No.

EXECUTIVE SUMMARY . : .....•...................................'

INTRODUCTION ...........•............. ;..................... vii

1.0 SITE DESCRIPTION AND HISTORY •..........................

1.1 Site Description .

1.2 Site ~istory , .

1.2.1 Evolution of Site and Site Topography .

1-1

1-1

1-1

1-2

2-1

2-1

2.0 PREVIOUS INVESTIGATIQNS AND ASSESSMENTS .

2.1 DPSC Fuel Contam'nation Study . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Final Engineering Report for the Defense Personnel Support Center,

Philadelphia, Pennsylvania . . . • . . • . . . . . . . . . . . . . . . . . . . . . .' 2-2

2.3 Site Characterization Report for the New ADP/Administration

Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .; . . . . . . . . .. 2-3

2.4 DPSC Underground Storage Tank Closures . .. . . . . . . . . . . . . .. 2-3

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3.0 REMEDIAL INVESTIGATION OBJECTIVES ......•............... 3-1

3.1 Original (Pre-BRAC) Objectives 3.,.1

3.2 Modified (Post-BRAC) Objectives '. . . . . . . . . . . . . . . . . . . .. 3-1

3.3 Reasons for Phased Investigation Approach . . . . . . • . . . . . . . . .. 3-2

4.0 SUMMARY OF FIELD ACTlVmES • . • . . . • . . • . . . . . . . . . . . . . . . . . .. 4-1

4.1 GPR Survey . . . . . . . . .. 4-1'

4.2 Active Soil Gas Survey. . . . . • . . . . . . . . . . . . . . . . . . . . . . . . .. 4-2

4.3 Site Characterization Analysis Penetrometer System Survey

(SCAPS) ....'............,.......................... 4-4

4.4 Hydropunch Sampling •..........•.................... 4-6

4.5 Soil Boring and Monitoring Well Installation .. ,; . . . . . . . . . . . . .. 4-9

4.5.1 Soil Borings •• . . • • . . . . . . . • . . . . . • . . • . . .. . . . . .. 4-9

4.5.2 Monitoring Well Installation .......:............. 4-10

4.5.2.1 Well Construction 4-10

4.5.3 Variances from the Proposed Work Plan 4-11

4.5.4 Well Development . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-13

4.5.5 Equipment Decontamination 4-13

4.5.6 Investigation Derived Waste (lOW) Disposal 4-14

4.6 Soil Sampling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-14
TABLE OF CONTENTS

REMEDIAL INVESTIGATION· PHASE I

DEFENSE PERSONEL SUPPORT CENTER

PHILADELPHIA, PENNSYLVANIA

5.0

Page No.

4.7 Surveying. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-16

4.8 Synoptic Groundwater and Free Produd Level Measurements . .. 4-17

4.9 Free Produd and Groundwater Sampling. . . . . . . . . . . . . . . . .. 4-18

4.9.1 . Free ProdUd Sampling 4-18

4.9.2 Groundwater Sampling .......•................ 4-19

4.10 Slug Testing ••..•••..•.........••..•..•........... 4-20

4.10.1 Theory. . . . • • . . . . • . • . . . . . . . . . . . . . . . . . . . . . .. 4-20

4.10.2 Test Procedure 4-21

4.10.3 Data Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-22

, GEOLOGY ..••.•••••••..•...• •.'........................ 5-1

5.1 Regional Geology. . • . . • . . . . . . • • . . . . . . . . . . . . . . . . . . . . .. 5-1

5.1.1 Stratigraphy . . . • . . . . . • . . . • . . : . . . . . . . . . . . . . . .. 5-2

. 5.2 Phase I Geological Charaderization . . • • . • . . . . . . . . . . .. . . . .. 5-2

5.2.1 Discussion of Geologic Cross-sections . . . . . . . . . . . . .. 5-3

/ - I \ .. ........ ---'~' "-~

6.0 HYDROGEOLOGY. . • . . . . . • . . . . • . . . • • . . • . • • . . . . . . . . . . . . . .. 6-1

6.1. Regional Hydrogeologic Framework ...•.................. 6-1

6.2 Aquifer System at 'DPSC . . . • . • . . . . • . • . . . . . . . . . . . . . . . . .. 6-1

6.3 Aquifer Charaderistics •...••...•................ . . . . . .. 6-2

6.3.1 Hydraulic Gradient ...•......................... 6-2

6.3.2 Hydraulic Conductivities ......••................. 6-4

6.3.3 Aquifer Thickness . . • . . . • . . . . . . . . • . . . . . . . . . . . .. 6-4

6.3.4 Porosity • . • • . . • . • • • . . • . . . . . . . . . . . . . . . . . . . . .. 6-5

6.4 Groundwater Row •..•••.••.••.•..•............ . . . . .. 6-5

6.4.1 Direction of Groundwater Row . . . . . . . . . . . . . . . • . . .. 6-5

6.4.2 Groundwater Velocity .....•..•...•......•..... .. 6-6

7.0 EXTENT OF CONTAMINATION - PETROLEUM HYDROCARBONS ..... 7-1

7.1 DPSC Geochemical Database . . . . . . . . . . . . . • . . . . . . . . . . . .. 7-2

7.2 SpillCADlM Data Assessment .........•................. 7-2

7.2.1 Conceptual Model ••..............'. . . . . . . . . . .. 7-3

7.2.1.1 Input Data ...••..................... 7-3

7.2.1.2 Uncertainties/Umitations. . . . . . . . . . . . . . .. 7-4

7.2.2 Soil Contamination ....•.....•......... . . . . . . .. 7-5

7.2.3 Volumetric Estimates of Petroleum Hydrocarbon

Contaminated Media. . . . . . . . . . . . . . . . . . . . . . . . . .. 7-5
TABLE OF CONTENTS

REMEDIAL INVESTIGATION· PHASE I

DEFENSE PERSONEL SUPPORT CENTER

PHILADELPHIA, PENNSYLVANIA

Page No.

7.2.4 Free Product Distribution • . • • • • . . . • . . . • • . . • . . . . .. 7-6

7.2.5 Groundwater Contamination •••......•.•......•.. 7-6

7.2.6 Evaluation,of Spillcacf'M Maps ••..•••......•.....• 7-7

7.2.6.1 'Free Product 7-7

7.2.6.2 TPH in Soils > 500 ppm (Depth Interval 0 -,S') 7-8

7.2.6.3 TPH in Soils >200. ppm (Depth Interval S'-15'). 7-9

7.2.6.4 TPH in Soils >500 ppm (Depth Interval 15 -

30') ..'............................. 7-10

7.2.6.5 Groundwater Isoconcentration Maps ....•. 7-10

8.0 .. EXTENT OF CONTAMINA~ON FROM DDT UNDERGROUND

STORAGE TANKS . . . . . . .. 8-1

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9.0 DATA SUMMARY AND COMPARISON - NON-PETROLEUM RELATED

PARAMET'ERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . '. . . . . . . . . . . . . .

9.1

Groundwater . . . . . . . . .'. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2

9.2.1

9.2.2

9.2.3

9.2.4

Volatile Organic Compounds • • . • • • • • . . . . . . . • . . . . .

Semi;.volatile Organic Compounds ..•.•...•........

Inorganic Compounds .••••••••.••••.•...•.•...

Pesticides/PCBs •.•...•.•.•••.••••...........

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10.0 DATA VALIDATION ••••.••••.••..••••••••.•.•.•.•......•. 10-1

11.0 PRELIMINARY EVALUATION OF FREE PRODUCT AND ASSOCIATED

DISSOLVED PHASE CONTAMINANT PATHWAYS •••............. 11-1

11.1 Soil Gas Fingerprinting • . . . • • • • • • • • • • • . • . . • . • • . . • . • . .. 11-2

11.1.1 Active Soil Gas Surveys and Data Comparisons •..•.. 11-2

11.1.1.1 Description of the Active Soil Gas Survey

Performed at DPSC • • • . • . . • . . • . • . . . . .. 11-2

11.1.1.2 Description of the Active Soil Gas Survey

Performed at the Sun Site •.•........... 11-3

11.1.1.3 Data Comparison .•••.•.............. 11-3
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REMEDIAL INVESTIGATION· PHASE I

DEFENSE PERSONEL-SUPPORT CENTER

PHILADELPHIA, PENNSYLVANIA

Page No.

11.1.1.4 Conclusions.. -. . • . • . . . . . . . . . . . . . . . .. 11-4

11.1.1.5 . Umitations to Data Comparison 11-4

11.1.2 PetrexlM (Passive) Soil Gas Survey 11-5

11.2 Free Product Migration through Direct F10wpaths through the

Unconfined Aquifer: . . . . . .. . . • . • • • . . . . . . . . . . . . . . . . . .. 11-8

11.3 Free Produd and Vapor Phase Migration via Underground Utilities 11-10

11.3.1

11.3.2

11.3.3

11.3.4

11.3.5

Off-Site Sewer Unes .••...•...•...••.•....... 11-11

11.3.1.1 26th Street Stormwater Sewer (Shallow) ... 11-12

-11.3.1.2 26th StreetSanitarySewerflower Schuylkill East

_ _ \ Interceptor (Deep) •.. . . . . . . . . . . . . . . . . 11-12

11.3.1.3 Pollock Street Sewer . • . . . . • . . . . . . . . . . 11-13

11.3.1.4 Packer Avenue Sewer -~ 11-14

11.3.1.5 20th Street Sewer • . . . . . • . • . . . . . . . • . . 11-15

-11.3.1 ~6 Oregon Avenue Sewers . . . . . . . . . . . . . . . 11-15

On-site Sewer Unes ...•..................... 11-16

11.3.2.1 Western Boundary .......•.......... 11-16

11.3.2.2 Southern Boundary • . . . . . . . . . . . . . . . . . 11-16

11.3.2.3 Northern Boundary •. . . • . . . . . • . • . . . . . 11-16

11.3.2.4 Eastern Boundary . . . . . . . . • . . . . . . : . . . 11-17

11.3.2.5 Fuel Tunnel on Rogers Street . . . . . . . . . . . 11-17

Vapor Phase Migration ...••.................. 11-17

Conclusions . • . •-. • . • • . • . • • . . . . . . . . . . . . . • . . . 11-18

Ranking of Utilities as Potential Hydrocarbon Migration

. Pathways ' 11-18

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11.3.6 Intrusive Work Recommended for Further Evaluation of

Utilities As Hydrocarbon Migration Pathways . . . . . . . . 11-18

12.0 CONTAMINANT SOURCE AREAS .- . . • • . • . -. • • • • • . • . : • • . . . . . . .. 12-1

12.1 On-site Releases 12-1

12.1.1 Spills... . • • • • . . . . . . . . • . . . . . . . , • • . . . . . . . . . . . 12-1

12.1.2 Petroleum Storage Tanks ..•................... 12-3

. 12.2 Major Potential Off-Site Sources 12-5

12.3 Minor Potential Off-Site Contributors .•...............•... 12-6

12.3.1 Federal Database Review 12-6

12.3.2 State and Local Regulatory Review 12-7
TABLE OF CONTENTS

REMEDIAL INVESTIGATION· PHASE I

DEFENSE PERSONEL SUPPORT CENTER

PHILADELPHIA, PENNSYLVANIA

Page No.

13.0

14.0

CONCLUSIONS .

13.1 Extent of Contamination ' .

13.1.1 Petroleum Hydrocarbons .

13.1.2 Other Contaminants of Concern .

13.1.3 Potentially Uncontaminated Tracts at DPSC .

13.2 'Probable Sources of Petroleum Hydrocarbon Contamination .

13.2.1 Evaluation of Potential On-Site Source Areas .

13.2.2 Evaluation of Potential Off-Site SourcaAreas .

13.3 Preliminary Findings Regarding Responsible Parties .•........

, RECOMMENDATIONS •...................................

14.1 Completion of Phase II of the Remedial Investigation ; ..

14.2 Follow-on Tasks to Improve PRP Determinations .

,14.3 Interim Remedial Measures . . • . . • . . . . . . . . . . . . . . . . . . . . . .

13-1

13-1

13-1

13-2

13-3

13-3

13-4

13-5

13-6

14-1

14-1

14-2

14-3

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15.0 STEPS TOWARDS REMEDIATION OF PETROLEUM CONTAMINATED

MEDIA 15-1

15.1 " Remedial Action Objectives . . . . . . . • . • . . • . . . . . . . . . . . . . .. 15-1

15.2 Applicable or Relevant and,Appropriate Requirements • . . . . . . .. 15-1

15.3 Baseline Risk Assessment ...............•............ 15-2

,- --.15A.. Focused Feasibility Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3

REFERENCES .•....... ; ..•..••..•....'. . . . . . . . . . . . . . . . . . . .. REF-1

ACRONYM UST AL-1
1-1

1-2

1-3

1-4

1-5

1-6

4-1

4-2

4-3

4-4 .

4-5

5-1A

5-1B

5-2

5-3

5-4

5-5

5-6

5-7

\. 6-1

6-2

7-1

7-2

7-3

7-4

7-5

7-6

7-7

7-8

7-9

11-1

11-2

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UST OF FIGURES

Site Location Map

Properties Contiguous to DPSC

Original Site Topographic Map (1918)

Early History Site Features Map (1914)

Present-Day Site Features

Pre-DPSC Map of Southern Philadelphia Area

Soil Gas Isoconcentration Map (Total VOCS > 1000 PPM)

Soil Gas Isoconcentration Map (Total BTEX > 100 PPM)

Soil·Gas Isoconcentration 'Map (Total VOCS - Total BTEX > 100 PPM)

Scaps and Hydropunch Survey Location Map

Soil Boring and Monitoring Well Location Map

Schematic of Former DPSC Process Water Supply Well

DSPC Unes of Section

North - South Regional Geologic Cross Section

Northwest - Southeast GEt0logic Cross Section

West - East Geologic Cro13s Section

.MW-7 - MW-10 Geologic Cross Section

Isopach of Surficial Clay Unit

Structural Attitude-Base of Surficial Clay Unit

Water Table Elevation Map and Free ProductThicknesses in DPSC, Sun Oil

Refinery and SEPTA Monitoring Wells (March 1995)

Water Table Elevation Map and Free Product Thicknesses in DPSC

Monitoring Wells (March 1995) .

Free Product Thickness Map

TPH Soil Concentrations (0-8') > 500 PPM

TPH Soil Concentrations (8-15') :> 200 PPM

TPH Soil Concentrations (15-30') > 500 PPM·

TPH Isoconcentration' Map > 0.02 PPM (Groundwater)

BTEX Isoconcentration Map > 0.005 PPM (Groundwater)

Benzene Jsoconcentration Map > 0.005 PPM (Groundwater)

GRO Isoconcentration Map > 0.5 PPM (Groundwater)

ORO Isoconcentra~on Map > 0.5 PPM (Groundwater)

Sewer Une Locations and Free Product Occurrence at DPSC and

Contiguous Areas

Profile of Packer Avenue-Pollock Street Sewers
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2-1

2-2

2-3

4-1

4-2

4-3

4-4

4-5

4-6

4-7

4-8

4-9

4-10

'~ 4-11

4-12

4-13

4-14

4-15

4-16

4-17

4-18

5.1

5.2

5.3

7-1

9.1

UST OF TABLES

Data Summary: UST Soil Sampling Analytical Results for DPSC Gasolline Station

(BTEX, GRO, ORO, TPH, and lead)

Data Summary: UST Soil Sampling Analytical Results for Building 8 and

Rogers Street Tanks (BTE)(. TPH, AND PCBs)

Data Summary: UST Soil Sampling Analytical Results for Oregon Avenue Tanks

(BTE)(, GRO, ORO, and TPH)

Active Soil Gas SurVey Analytical Data (BTEX and, Total VOCs)

SCAPS Survey Data Summary: .Ruorescence Intensity

Data Summary: Sample Depths and Analytical Results for Hydropunch Samples

(GRO, ORO, and BTEX) ...

Soil Gas, SCAPS, Hydropunch, and Monitoring Well location Cross Reference

Monitoring Well Construction Data Summary

Monitoring Well Development Data Summary

Monitoring Well PID Readings (PPM above Background)

Data Summary: Analytical Results for DPSC Soil Samples (TPH, GRO,

ORO, and BTEX) I

Data Summary: Analytibal Results for DPSC Soil Samples (TCl Organic

Compounds)

Data Summary: Analytical Results for DPSC Soil Samples (TAL Inorganic

Compounds)

Synoptic Groundwater and Free Produd Elevation Data, DPSC,

Philadelphia, Pennsylvania, Odober 21, 1994

Synoptic Groundwater and Free Produd Elevation Data, DPSC,

Philadelphia, Pennsylvania, December 14, 1994

Synoptic Groundwater and Free Produd Elevation Data, OPSC,

Philadelphia, Pennsylvania, March 1 and 2, 1995

Data Summary: Analytical Results for DPSC Free Produd Samples (GRO,

ORO, and BTEX)

Data Summary: Analytical Results for DPSC Groundwater Samples (fPH,

GRO, ORO, and BTEX)

Data Summary: Analytical Results for DPSC Groundwater Samples (TCL

Organic Compounds)

Data Summary: Analytical Results for DPSC Groundwater Samples (TAL

Inorganic Compounds)

Aquifer HydraulicConductivities (SlugTest Data), DPSC, Philadelphia, Pennsylvani~

General Subsurface Stratigraphy, Southeastern Philadelphia, Pennsylvania

USCS Classification of Geotechnical Samples

Data Summary: Geotechnical Samples, Shelby Tubes Permeability Testing

DPSC Geochemical patabase Summary

Ranges of Inorganic Constituents in Subsurface Soils
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.AlTACHMENT 1

ATIACHMENT 2

ATIACHMENT 3

ATIACHMENT 4

UST OF ATTACHMENTS

Phase I Remedial Investigation/Feasibility Study for DDT

UST/Mixing Room

Figure Summarizing Locations, Sizes, and Contents for DPSC

USTs and ASTs

Summary of Field Investigation Tasks

ES&E Monitoring Well and Soil Boring Location Map (Addendum

to Appendix F) .

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A

B.

C.

D.

E.

F.

G.

H.

I.

J.

K

L

M.

N.

O.

P.

Q.

. R.

S.

T.

APPENDICES

Ground Penetrating Radar Survey Data and Report

Active Soil Gas Survey Data, Chromatographs and Field Notes

Scaps Workplan, Panel Plots and Digital Data Output

Analytical Data· Hydropunch Sampling

Survey Data

DPSC Geotechnical Database

Phase I Soil Boring Logs

Geotechnical Sampling Analytical Results

Well Construction Drawings and Workplan Modifications

Well Development Data Forms

.Synoptic Water Level Data· Sun Refinery South Yard

AQTESOLV Time/drawdown Plots

Spillcad Model Query Databases and Input Parameters

Groundwater Analytical Da~a

Soil Analytical Data

Free Product Analytical pata· ._

Passive Soil Gas (PETR!X) Survey Final Report and Survey Modifications

Selected Utility Maps

Vista Database Search

Photographs
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EXECUTIVE SUMMARY

. The United States Army Corps of Engineers (ACOE), Baltimore District,

tasked Kemron Environmental Services, Inc., and Versar, Inc., to conduct Phase I

of the Remedial Investigation/Feasibility Study (RifFS) at the Defense Personnel

Support Center (OPSC) located in Philadelphia, Pennsylvania. This project was

performed on behalf of the ACOE, Philadelphia District, under Contract No.

OACW31-89-D-D060, Delivery Order NO.8.

The Defense Personnel Support Center (OPSC) is 'centrally located in the

southern portion of Philadelp~ia, Pennsylvania, known as South Philadelphia.

Comprising approximately 8EtS acres, the facility is situated at approximately

39°55' north latitude and 75°'11' west longitude on the Philadelphia PA-NJ 7.5-

minute quadrangle of the U.S. Geological Survey (USGS) topographic quadrangle

map. Its street address is 2800 South 20th Street; the site is bounded by 20th

Street to the east, Oregon Avenue to the north,. the Schuylkill Expressway to the

south, and the Conrail and CSX railroad properties to the west. Figure 1-1

indicates the location of the PPSC site and surrounding areas in South

Philadelphia. .

The DPSC is located in the vi'cinity of several bulk petroleum refining and

storage facilities, retail gas stations, and a bus maintenance garage. Their

locations are indicated in Figure 1-2. Adjacent refineries and bulk storage facilities

include the Sun Refinery (north, south and west yards), the former Chevron

Refinery, and the Philadelphia Gas Works.

,A Southeast Pennsylvania Transit Authority (SEPTA) maintenance facility is

located adjacent to the OPSC's eastern boundary along 20th Street. The George

Young Rigging and Hauling Company is located near the northeast corner of OPSC

at the intersection of Oregon Avenue and 20th Street. Formerly, there was also an

Exxon gasoline station at this intersection. A Getty Oil gasoline station is located

north of the DPSC at the intersection of 21st Street and Oregon Avenue,and a Gulf

retail station is present at the southeast corner of DPSC, near the intersection of

Moyamensing Avenue and the Schuylkill Expressway.

Previous subsurface investigations at DPSC indicated an extensive

occurrence of petroleum hydrocarbon contamination in the soils and groundwater

underlying the site. In addition, DDT and related pesticide contamination was

identified around the former DDT mixing room and associated UST system. Some

of the petroleum hydrocarbon contamination may be related to the presence of onsite aboveground and underground storage tanks (ASTs and USTs), but a

significant amount was believed to be attributed to off-site sources, including the

contiguous, upgradient refineries located just to the west of DPSC. The presence

of one or more such plumes has had a far reaching effect on construction activities

at the site. According to DPSC personnel, a ban presently exists on new

2727FINL001 -i-
,,

, .

constructic;-~" ::tivities due to the dangers and risks of explosion and toxic fume '\

releases as<~:.1ted with earthwork. .-l

. The objectives of this investigation at DPSC have evolved from initial

planning through execution and completion. During initial scoping, the DPSC

facility was actively operating and had not been slated for closure under the BRAC

program. Therefore, the primary objectives were to characterize and delineate

petroleum hydrocarbon contamination, DDT contamination, and contamination from

other areas of concer:n at the facility in order to identify and evaluate remedial

alternatives for subsequent clean-:up in accordance with the installation-wide master

plan. The ultimate objective of the pre-BRAC investigation was to support the

protection of human health and the environment and to allow for Mure

development of the site. It was based on these objectives that the Draft Project

Operations Work Pian for the DPSC RI/FS was prepared in October 1993.

Following completion of the Draft Project Operations Work Plan for the DPSC

RI/FS in October 1993, the DPSC facility was approved for closure under the BRAC

program. The known petroleum hydrocarbon contamination and DDT

contamination at the site ref.resented the primary obstacles to site transfer and

Mure site use plans. Therefore, the pr;~nary objectives of the RI/FS were modified

to characterizing and delineating pe~roleum hydrocarbon and DDT contamination

for subsequent interim remedial measures, as necessary, and responsible party

identification and cost apportionment. The secondary objectives of the post-BRAC

RI/FS were to characterize and delineate contamination associated with other ')

areas of concern and to develop subsequent remediation plans for these other

areas of concern so that the site could be transferred in accordance with BRAC

requirements. Based on these modified objectives, the Project Operations Work

Plan for the DPSC RI/FS was revised in May 1994.

When this investigation commenced in September 1994, BRAC FY93 funding

limitations necessitated a phased approc,:~h to the investigation. Consequently,

DPSC and theBRAC Team assigned top priority to the characterization and

delineation of the petroleum hydrocarbon contamination and the DDT

contamination at DPSC, because these known problems represented the greatest

obstacle to subsequent site transfer and future site use plans. A secondary

objective of this investigation was to preliminarily identify potential responsible

parties for the pe~oleum hydrocarbon plume. These priority objectives were

extracted from the overall RI/FS Project Operations Work Plan as ·Phase I,· which

is the subject of this report.

Phase I of a Remedial Investigation (RI) was performed at the 86.5-acre

Defense Personnel Support Center in Philadelphia, Pennsylvania between

September 1994 and April 1995. The Phase I RI work scope included performance

of a ground penetrating radar survey, active and.passive soil gas surveys, site

characterization analysis penetrometer system survey, hydropunch sampling, and

the advancement of sixteen borings that were subsequently converted to

groundwater monitoring wells. Most of these field activities were conducted on

2727FINL001 -ii-
f

DPSC property, however, two monitoring wells were installed on the adjacent CSX

railroad property along the western boundary of DPSC. The passive ~oil gas

survey was to be conducted on both DPSC and the Sun Oil Company refinery

sites, but subsequent discussions with Sun representatives failed to achieve rights

of access to conduct that part or the survey that was to be performed within the

refinery area. In addition to on-site field work, regulatory files were reviewed to

obtain information on surrounding properties and potential contaminant migrations

pathways O.e., utilities, primarily sewers, surrounding DPSC). All work was

performed in accorda.nce with the RI Project Operations Plan dated May 23, 1994,

the Technical Proposal dated August 10, 1994, and approved modifications made

thereto. .

,The findings and key conclusions 'from the Phase I RI are summarized

below:'

• Several portions of DPSC showed low concentrations of petroleum

hydrocarbons just below the soil surface O.e., in the depth interval 0

to 8 feet). This contamination is most likely caused by past

operations at ~PSC.

• A massive free product plume consisting of gasoline and diesel fuel

exists on the water table at the southern portion of DPSC. The

volume of product contained in this plume (estimated at 1,000,000

gallons) is larger than can be attributed to the use of similar products

at DPSC.

• Petroleum hydrocarbon contamination was conspicuously absent in

the soil interval between the surficial soils (0-8 feet) and the water

table, indicating that no direct pathway for contaminant migration

exists between the surficial contamination and the free product plume.

• Based on regional and site specific groundwater flow patterns,. the

unique chemical signature of the massive free product plume, and the

distribution patterns of soil and groundwater contaminants revealed

through the preparation of various petroleum hydrocarbon species

isoconcentration maps, the free product plume does not appear to

have originated on-site or to have migrated onto DPSC from the

presumed upgradient 0.8., northwest) direction.

(rI

•

2727FINL001

A review of regulatory files was conducted to investigate all

documented on-site and off-site petroleum hydrocarbon releases.

This review was performed in an attempt to determine the relationship

of the releases, if any, to the free product plume. Most of these

releases O.e., those from SEPTA, Sears, and surrounding service

stations) were found to be volumetrically insignificant and bore

different chemical characteristics from the massive gasoline/diesel

plume.

-iii-
•

•

•

From regulatory file reviews. the south yard of the neighboring Sun Oil )

Company refinery was found to have the greatest frequency of free .

product occurrences of any of the properties in the immediate vicinity

of DPSC. Based on this information and a review of contaminant

migration pathways. the Sun refinery south yard appears to be the

most likely source of the existing free product plume.

. Interpretation of hydrogeologic and geochemical data suggests that

the pluqle entered the installation from a southerly direction. possibly

via a transport pathway associated with permeable bedding and

backfill materials originally emplaced along the east-west trending

Packer Avenue sewer line and a sewer lateral entering DPSC from the

southeast. It is clear from available groundwater monitoring reports

for the Sun Oil Company that utilities have played a key role in free

product migration within certain portions of the refinery south yard.

There is documented information concerning the existence of multiple

free product plumes on the Sun south yard along the 26th Street

sewer and the Pollock Street Sewer.

Soils containinb DDT at concentrations above Land Ban limits were

detected in a small area adjacent to Building 9, in the southeast

portion of the site immediately south of two former 10.000-gallon DDT

underground storage tanks. Elevated levels of DDT above Land Ban

limits were also identified in the soil samples collected from beneath -j

the concrete floor of the mixing room in Building 9. In addition, low

levels of DDT were found in the groundwater near the former USTs.

Three distinct areas· of petroleum hydrocarbon contamination were

documented at DPSC. Low-level diesel range organic contamination was identified

in soils and groundwater in the northwest portion of the site. Weathered diesel fuel

contamination was found in the soil associated with a release from former DPSC

underground storage tanks located along Oregon Avenue in the north-centr~ part

of the site. A massive, free product plume was found covering most of the

southern half of the facility. The first two areas of petroleum hydrocarbon

contamination appear to be unrelated to the free product plume along the southern

portion of DPSC based on the following factors: (1) the limited areal extent of

diesel range organic and weathered diesel fuel contamination, (2) the geometry of

the free product plume, and (3) the low levels of total petroleum hydrocarbons/

diesel range organic species associated with the former ~o areas.

The 54-acre free product plume consists of a gasoline/diesel fuel mixture

ranging from 2:1 to 3:1 and was found to cover most of the southern half of the

DPSC site. This plume, containing approximately one million gallons of free

product. has caused extensive areas of soil and groundwater contamination. Free

product has accumulated along the southern half of DPSC in response to the

unique geologic conditions that exist in that area and also in association with a

2727FINL001 -iv-
I ,

L large, east-west trending sewer line that runs parallel to the southern property

boundary.

Because the hydrogeologic data were not indicative of a direct contaminant

migration pathway from an upgradient source, additional research of utility files was

conducted to evaluate preferential contaminant migration pathways through a

process of elimination of potential candidates. This additional research revealed

that free product accumulations in the Sun Refinery's south yard commonlyoccur

in association with seYler lines. At least one of these sewers with which free

product is associated runs from the central part of the south yard in an easterly

direction, skirting the southern property boundary of DPSC. Based on the data

contained in this report, this sewer appears to represent the most logical pathway

for migration of the petroleum hydrocarbon contamination onto the DPSC site. No

. other mechanisms for transport of such a volume of free product have been

identified to date.

Versar has reason to conclude that the single most likely potential source of

the 54-acre free product plume at the DPSC is the Sun Oil Company refinery south

yard, in light of careful conSideration of the follOWing factors:

• The volume of free product in the aquifer along the southern portion

of DPSC exceeds one million gallons, and additional product volume

occurs in an irreducible form in subsurface soils due to historic water

table fluctuations. Based on available information concerning various

on-site and off-site releases in the vicinity of DPSC, none of these

individual sources is likely to have generated a product volume this

large, except for the refinery south yard. Interpretation of

groundwater flowpaths and the chemical signatures associated with

the various releases, excluding the Sun refinery south yard releases,

indicate that they did not act in a cumulative sense to produce a one

million gallon free product plume that is a gasoline/diesel fuel mixture.

• Free product does not appear to have migrated onto the DPSC site

from a northwest direction following regional groundwater flow

patterns. Although low levels of DRO contaminated media were

detected in the northwest comer of DPSC, no discernible transport

pathway for the free product plume was recognizable from the

analyses of soil and groundwater samples collected in this area If

the gasoline/diesel plume entered the DPSC from the northwest,

residual soil contaminants bearing this chemical signature should be

evident in the silty, fine grained soils that comprise the aquifer. The

absence of this chemical signature suggests an alternate transport

pathway.

•

2727ANL001

As indicated by the pattern of isoconcentration contours for various

hydrocarbon species, the extent of soil and groundwater

contamination associated with the free product plume at DPSC

-v-
suggests a source that lies somewhere to the south of the facility.

The area south of DPSC is primarily residential; howeve~major city

sewer lines south of the DPSC site continue into the refinery area and

are "known to be associated with various occurrences of free product

in that area.

• There are no manifestations of the massive free product plume in

soils in the depth interval from 0 to approximately 15 feet below

grade, making it improbable that any major spills or surface releases

at DPSC contributed significantly to the free product plume. The

presence of a surficial low permeability silt and clay unit at DPSC

tends to inhibit ~e potential infiltration of spills to water table depths. ..

Additional work is required to further evaluate contaminant migration

pathways and to develop a chemical correlation between the source area Q.e., the

responsible party) and the plume observed on the southern portion of the DPSC

property. This additional work will determine whether the Packer Street sewers, or

other sewers, have functioned as free product migration pathways. The additional

work will include geotechnicfl characterization of the soils, bedding and backfill

materials In contact with certain sewers; the evaluation of hydraulic gradients along

these utilities; direct push soil and groundwater sampling and analysis; and detailed

petroleum hydrocarbon fingerprinting at DPSC and all suspected source areas.

Three recommended tasks remain to be performed at DPSC to complete '::J

implementation of the Rl/FS:

• Additional responsible party determination, including additional

characterization required to identify free product and vapor phase

transport mechanisms that may occur via subtle migration pathways.

• Assessment of the need for possible interim remedial me!!isures to

assure containment of the free product plume.

• Evaluation of the remaining areas of concern at DPSC, including

delineation of the dissolved phase groundwater contaminant plume

associated with the occurrence of more than one million gallons of

free product, and subsequent completion of a Baseline Risk

Assessment and Feasibility Study.

2727F1NL001 -vi-
, I

I~

L

INTRODUCTION

The United States Army Corps of Engineers (ACOE), Baltimore District,

tasked Kemron Environmental Services, Inc., and Versar, Inc., to conduct Phase I

of the RemediallnvestigationlFeasibility Study (RI/FS) at the Defense Personnel

Support Center (DPSC) located in Philadelphia, Pennsylvania. This project was

performed on behalf of the ACOE, Philadelphia District, under Contract No.

DACW31-89-D-Q060, Oelivery Order No.8.

The objectives of this investigation at DPSC have evolved from initial planning

through execution'and completion. During initial scoping, the DPSC facility was

actively operating and had not been slated for closure under the BRAC program.

Therefore, the primary objectives were to characterize and delineate petroleum

hydrocarbon contamination, DDT contamination, and contamination from other

areas of concern at the facility in order to identify and evaluate remedial alternatives

for subsequent clean-up in accordance with the installation-wide master plan. The

ultimate objective of the pre-j3RAC investigation was to support the protection of .

human health and the envircmment and to allow for Mure development of the site.

It was based on these objectives that the Draft Project Operations Work Plan for

the DPSC RI/FS was prepared in October 1993.

Following completion of the Draft Project Operations Work Plan for the DPSC

RI/FS in October 1993, the DPSC facility was approved for closure under the BRAC

program. The known petroleum hydrocarbon contamination and DDT

contamination at the site represented the primary obstacles to site transfer and

Mure site use plans. Therefore, the primary objectives of the RI/FS were modified

to characterizing and delineating petroleum hydrocarbon and DDT contamination

for subsequentinterim remedial measures, as necessary, and responsible party

identification and cost apportionment. The secondary objectives of the .post-BRAC

.RI/FS were to characterize and delineate contamination associated with other

areas of concern and to develop subsequent remediation plans for these other

areas of concern so that.the site could be transferred in accordance with BRAC

requirements. Based on these modified objectives, the Project Operations Work

Plan for the DPSC RI/FS was revised in May 1994.

When this investigation commenced in September 1994, BRAC FY93 funding

limitations necessitated a phased approach to the investigation. Consequently,

DPSC and the BRAC Team assigned top priority to the characterization and

delineation of the petroleum hydrocarbon contamination and the DDT

contamination at DPSC, because these known problems represented the greatest

obstacle to subsequent site transfer and future site use plans. These priority

objectives were extracted from the overall RI/FS Project Operations Work Plan as

·Phase I,· which is the subject of this report.

2727ANL001 -vii-
,o!"..:,,!'::f.his report presents the results of the Phase I RI at DPSC. DPSC is centrally

lo~C::) e:in the southern portion of Philadelphia, Pennsylvania. The facility

comp.ises approximately 86.5 acres and is found at approximately 39°55' north

latitude and 75°11' west longitude. The facility street address is 2800 South 20th

Street, and the site is bounded by 20th street to the east, Oregon Avenue to the

north, the Schuylkill Expressway to the south, and the Conrail and CSX railroad

properties to the west.

The OPSC facilitY is government-owned and is operated by the Defense

Logistics Agency (OLA). The facility is responsible for the worldwide distribution of

supplies for the 000. This responsibility includes procuring and distributing food,

clothing, and medical supplies to all branches of the armed forces and to other

authorized federal agencies and foreign countries, as required. According to OP;:::C;

personnel, the property has always been owned or leased by the Department of

Defense (DOD) ever since the facility was originally constructed in 1918. Additional

construction and major renovations occurred at.the...siteJn the early 1940's. Prior

to initial construction in 1918, the property was reportedly vacant, unimproved land.

Previous subsurface in~estigations ·a~ DPSC have indicated an extensive

occurrence of petroleum hydrocarbon contamination in the soils and groundwater

underlying the site. Some of this contamination may be related to the presence of

on~site aboveground and underground storage tanks (ASTs and USTs), but a

significant amount may be attributed to off-site sources. The primary operable ')

units of this Phase I RI, therefore, consisted of petroleum hydrocarbon

contaminated media including soil and groundwater.

The Phase I RI was performed between September 1994 and April 1995 in

accordance with the Project Operations Work Plan, dated May 23, 1994, and -in

.- ---accor.qance with the Technical Proposal for the Phase I RifFS, dated August 10,

1994. Phase I included characterization and delineation of the free prqduct plume

underlying OPSC, preliminary PRP determination for the free product plume, and

delineation of residual DDT and pesticide contamination associated with the former

DDT mixing room and associated UST systems. The report describes the field

activities conducted at the OPSC facility and presents an in-depth evaluation of the

findings from these investigations.

This report Comprises 15 sections, including the following:

• Site description and history (Section 1.0);

• Previous investigations and assessments (Section 2.0);

• Remedial investigation objectives (Section 3.0);

• Summary ~J field activities (Section 4.0);

2727FINLOO1 -viii-
I 1

L • Geology (Section 5.0);

• Hydrogeology (Section 6.0);

• Extent of contamination - petroleum hydrocarbons (Section 7.0);

• Extent of contamination - DDT USTs (Section 8.0);

• Data summary and comparison - non-petroleum related parameters

(Section 9.0);

• . Data validation (Section 10.0);

• Preliminary evaluation of contaminant migration pathways (Section 11.0);

• Contaminant source areas (Section 12.0);

• Conclusions (Se'f0n 13.0);

• Recommendations (Section 14.0); and

• Steps toward remediation of petroleum hydrocarbon contaminated

( media (Section 15.0). '---

2727FINLQ01 -ix-
I I

! '

1.0 SITE DESCRIPTION AND HISTORY

The objective of Phase I of the DPSC RI was to delineate tHe extent of

petroleum hydrocarbon contaminated media. Therefore, the geographic framework

for the Defense Personnel Support Center (DPSC) is presented to establish the

facility's setting with respect to bulk petroleum storage facilities, a bus maintenance

garage, and gasoline stations~ These facilities all have associated underground

and/or aboveground petroleum hydrocarbon storage tanks, many of which have

experienced releases In the past. Moreover, a review of site history reveals

significant modifications to this tract of land over time that may have altered

subsurface conditions in certain areas. A more detailed discussion of the history of

the DPSC site may be found ··in a report entitled, Cultural Resources Survey,

Defense Personnel Support Center, City of Philadelphia, dated November 1994.

1.1 Site Description

The Defense Personnel Support Center (DPSe) is centrally located in the

southern portion of Philadell1hia, Pennsylvania, known as South Philadelphia.

Comprising approximately 8~.5 acres, the facility is sjtuated at approximately 39°55'

north latitude and 75°11' west longitude on the Philadelphia PA-NJ 7.5-minute

quadrangle of the U.S. Geological Survey (USGS) topographic quadrangle map.

Its street address is 2800 South 20th Street; the site is bounded by 20th Street to

the east, Oregon Avenue to the north, the Schuylkill Expressway to the south, and

the Conrail and CSX railroad properties to the west. Figure 1-1 indicates the

location of the DPSC site and surrounding areas in South Philadelphia.

The DPSC is located in the vicinity of several bulk petroleum refining and

storage facilities, retail gas stations, and a bus maintenance garage. Their

locations are indicated in Figure 1-2. Adjacent refineries and bulk storage facilities

include the Sun Refinery (north, south and west yards), the former Chevron

.Refinery, and the Philadelphia Gas .Works.

A Southeast Penn~ylvania Transit Authority (SEPTA) maintenance facility is

located adjacent to the DPSC's eastern boundary along 20th Street. The George

Young Rigging and Hauling Company is located near the northeast corner of DPSC

at the intersection of Oregon Avenue and 20th Street. Formerly, there was also an

Exxon gasoline station at this intersection. A Getty Oil gasoline station is located

north of the DPSC at the intersection of 21st Street and Oregon Avenue, and a Gulf

retail station is present at the southeast corner of DPSC, near the intersection of

Moyamensing Avenue and the' Schuylkill Expressway.

1.2 Site History

The DPSC facility, constructed in 1918, is government-owned and is

operated by the Defense Logistics Agency (DLA). Before that time, this parcel of

land was largely unimproved, and Penrose Avenue crossed what is now the

2727FINL001 1-1
SC,"'ast comer of the site. Figure 1,' indicates the original site topography fe: -;

tty )SC property. ,In the 1940s, adclXonal construction and major renovations oc;~..:;rl"ed at the site. According to a City of Philadelphia Planning Map (see Figure

1-4), a number of roads were proposed to criss-cross the site including 21st, 22nd,

23rd and 24th Streets (from north to south), as well as Johnston, Bigler and Pollack

Streets (from east to west). Vare Avenue was also proposed to bisect the site in a

northwest-southeast direction. However, it is not known which, if any, of these

roads were actually constructed as planned. Figure 1-4 demonstrates the

proposed development of the site by the mid-1900s.

Presently, 95% of the total property area is paved or developed with

buildings. Figure 1-5 shows the current site configuration. Warehouses occupy

much of the western portion of the site, whereas the active manufacturing

operations and administrative functions are conducted mainly in buildings on the

eastern half of the site. Utilities underlie all of the facility roadways and include

water mains, gas lines.. eleetricallines, steam lines, telephone lines, a combined

stormwater-sanitary S8'v'ier system, and an underground fuel tunnel.

The OPSC facfFty waJ responsible for the worldwide distribution of supplies

for the Department of Defense (DOD). This responsibility included procuring and

distributing food, clothing, and medieal supplies to all branches of the armed forces

and to other authorized federal ,agencies and foreign countries, as required. The

majority of the supplies distributed by OPSC were manufactured and stored at )

other installations. However, OPSC previously manufactured some textile and

clothing items on-site, and some of the supplies were stored in the OPSC facility's

warehouses. The facility is scheduled for closure in 1999 under the Base

Realigr)ment and Closure (BRAC FY93) Program .

1.2.1 Evolution of Site and Site Topography

Site improvements made since the site was first developed in 1918 have had

significant impacts on subsurface conditions that may have influenced the ,migration

of petroleum hydrocarbons.

When the property was still owned by the Girard family, the original site

topography W2S considerably different from its current appearance. A north-south

trending ridge with an elevation of 18 to 20 feet above mean sea level (MSL)

bisected the site with elevations dropping to approximately 15 to "16 feet above

MSL to the east and west property lines. Two prominent low areas existed at the

site: one in the northwest comer and another at the southeast corner. The low

area to the northwest was reportedly a wetlands/marsh with elevations dropping to

as low as 3 feet above MSL, close to the current depth of the water table at the

site. At the southeast comer of the site, elevations dropped to about 11 feet above

MSL, where a culvert channeled surface water in an easterly direction across

Penrose Avenue. Figure 1-6, an early vintage map of the South Philadelphia area"

indicates that a small creek formerly ran neS! the northeast corner of the site, )

2727FINL001 1-2
••

L

, . l'

,

flowing in an east-southeasterly direction into Chickhansink Creek. The latter

drainage appears to have formerly run along what today is recognized as 20th ~~ .

Today, the average elevation at DPSC ranges between 18 and 21 feet above

MSL The former lowland areas at the northwest and southeast portions of the

facility have been leveled with fill including ash, cinders, ceramic, and brick. Up to

22 feet of fill have been emplaced at the northwest comer of the site and

approximately 10 feet at the southeast section. The physical properties of this fill,

particularly hydraUlic conductivity, vary markedly from the natural low permeability

clay unit that is developed over much of the rest of the site.

The roads and streets built in the mid-1900's have probably had minimal

impact on subsurface conditions at the site. However, the myriad of underground

utilities presently underlying many of these streets may have functioned as

migration pathways for vaporous phase hydrocarbcm~ome of the deeper

utilities, notably the combined stormwater-sanitary system, may have affected the

migration ·of free product ph~se hydrocarbons to some extent. The presence of

railroad tracks and the SchU}'lkill Expressway along the southern and western

property boundaries may also influence the migration of petroleum hydrocarbon

vapors. .

.- -_ .

2727FINL001 1-3
SCALE: 1 INCH = 2,000 FEET

Yer_al~ 1900 FROST ROAD, SUITE 110

BRISTOL, PA 19007

(215) 788-7844

FIGURE 1-1

SITE LOCATION MAP

DEFENSE PERSONNEL SUPPORT CENTER

PHIlADELPHIA, PA

DATE:

DESIGNED BY:

JOB NO.:

OWG. NO.:

05 15 94

D."'.

2727.001
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SUN SERVICE STATION

@

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CHECKERS (FORMER SERVICE STATION)

R

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VICE STATION~ SERVICE STATION
FIGURE 1-3 

P A

DEFENSE PERSONNEL SUPPORT CENTER

PHILADELPHIA, PA

.......

_

....... 

/

(

1900 FROST ROAD, SUITE 110

BRISTOL, PA 19007

(215) 788-7844

SOURCE:
'fel·sal~NC.

1900 FROST ROAD, SUITE 110

BRISTOL, PA 19007

(215) 788-7844

..

..

FIGURE 1-4

EARLY HISTORY SITE FEATURES MAP (1914)

DEFENSE PERSONNEL SUPPORT CENTER

PHILADELPHIA, PA

.. " .

~l!JJ

~~('

~'

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I c= OREGON AVENUE-'- I. « e" '9 "

.... I -'-

:t

o ·t; 0

., ~.,

lf!

SOURCE: CITY OF PHILADELPHIA

NOTE:
100'

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GRAPHIC SCALE

....

...

CI .., Z ...

9 CI 5 z

m 9

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II

STREET

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BUILDING 30

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I D I C I B1 AI rP I.PARKING LOT BUILD!NG 26 w

ALESHIRE STREET ---

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J 1 1 i H i G I F I E I D I c I B 1 A I m I I I I I BUlp>ING ,1 , I I ! ., ! I , , , .... i ---

0\ I I H I G I FIE I D I c -: B I A I A-1 I I 4 I I I I I

CHAIN LINK -,...__

FENCE

5 

FIGURE 1- 

PRESENT-DAY SITE 

DEFENSE PERSONNEL SUPPORT CENTER 

... .--.:..P.:..,:H.:.:ILA:..:.D:..:E:.:L:..:.P_H_IA..:.,._P_A 

1900 FROST ROAD. SUITE 110

BRISTOL. PA 19007

(215) 788-7844
(--

SOURCE: ·CHARLES ELLET MAp·

DPSC PUBLIC WORKS ARCHIVES

'f(,~.I~c. 1900 FROST ROAD, SUITE 110

BRISTOl, PA 19007

(215) 788-78-44

FIGURE 1-6

PRE-DPSC MAP OF SOUTHERN

PHILADELPHIA AREA

(c. , 843 DATE NOT CONFIRMED)

DESIGNED BY:

SCALE:

OWG NO.~

05' 15 94

D.U.

NTS

2727.001
(

'-

2.0 ·PREVIOUS INVESTIGATIONS AND ASSESSMENTS

Delineation of petroleum hydrocarbon contaminated media has been the

objective of several site investigations at the DPSC preceding Phase I of the

present remedial investigation. Prior studies included:

• DPSC Fuel Contamination Study: Performed in January 1988 by the

Baltimore DiStrict of the ACOE, this investigation involved the advancement

of soil borings near the southwestern corner of the facility to evaluate the

extent of diesel contamination resulting from a leak in the piping between

the underground storage tanks (USTs) and fuel dispenser in that area.

• Final Engineering Report for the Defense Personnel Support Center:

Performed in November 1991 by Environmental Science and Engineering,

Inc., this study differentiated between UST related contamination

associated with the DPSC gasoline station and the presence of a deeper

and areal extensiv, gasoline/diesel fuel free product plume.

• Site Characterization Report for the New ADP/Admin Building, DPSC,

PhiladeJphiBr Pennsylvania: Performed in October 1992 by the Baltimore

District of the ACOE, this investigation examined the occurrence of

petroleum hydrocarbon contamination in the vicinity of a proposed new

building site in the east-central portion of the DPSC facility.

• DPSC UST Closure Program - Performed by Versar, American

Construction Services, and Wu and Associates, Inc. between 1993 and

1995, this program involved the closure and/or replacement of facility

USTs and included the sampling and analysis of soil samples for various

species of petroleum hydrocarbons.

2.1 DPSC Fuel Contamination Study

The DPSC Fuel· Contamination Study focused on delineating soil

contamination in the vicinity of the gasoline station (Building 28) near the

southwestern portion.of the facility. In September 1987, during the excavation of a

trench to install a computerized fuel distribution system, it was discovered that the

feed and vent lines from the dispenser to the three USTs (diesel, unleaded

gasoline, and leaded gasoline) were corroded. As excavation continued, it was

found that diesel fuel was leaking from a corroded pipe at a depth of about 2 feet.

In November 1987, the ACOE began the advancement of 20 borings to delineate

the extent of contamination associated with this leaking fuel line. The boring

program was generally restricted to the southwestern and western parts of DPSC.

2727FINLOO1 2-1
The resulting report concluded that diesel fuel oil had leaked from a corroded ,)

pipe near the northeast comer of Building 28 and contarr.':nated an area of

approximately JOO square feet. T.;e release centered around borings DH-1, DH-2,

DH-3 and DH· ,.;;, and the trench from which the corroded pipe was removed. Soil

contamination was observed at two discrete depths; 3 feet and 17 feet below

grade. In each instance, the migration of these releases appeared to be controlled

by the presence of two Clayey, silty layers at these depths. The Bqltimore ACOE

indicated that the shallow contamination appeared to be associat with a release

from the corroded diesel fuel line, while the deeper, more extensive gasoline

contaminatio: was interpreted to be attributable to a separate, and possibly older,

release.

The corroded segments of the fuel lines that were responsible for the release

of diesel fuel to the subsurface were replaced, and an unreported volume of

pe~!"oleum hydrocarbon contaminated soils were excavated and disposed of at an

oi.te facility.

2.2 Final Engineering Report for the Defense Personnel Support Center,

Philadelphia, Pennsylvania

Performed by Environmental Science and Engineering (ES&E) in November

1991, this investigation was undertaken to evaluate the prc:Jable extent and source

of petroleum hydrocarnon contamination in the vicinity of three underground -=) storage tanks located in the southwest portion of the DPSC. The scope of work

involved the collection, sampling, and analysis of soil and groundwater samples

from seven soil borings and seven groundwater monitoring wells.

Report findings indicated that petroleum hydrocarbon contaminated soils were

identified in the depth interval from 0-10 feet below grade; were absent in the depth

interval 14-16 feet; and were widespread in soils at a depth below 16 feet. Based

on the widespread occurrence of free product and contaminated s.oils below a

;:;apth of 16 feet and an apparent absence of similar contamination in the 'depth

range from 14 to 16 feet, ES&E concluded the; the deeper, massive petroleum

hydrocarbon -·:Jntamination was not related to '~ne DPSC fuel USTs near Building

28, but was . .:>re probably attributable to an upgradient, off-site source. Data from

the ES&E report indicated that groundwater flow was in a southeasterly direction

and that, there'ore, the probable source of the extensive free product plume

developed along the scuthem portion of the DPSC site was located somewhere to

the northwest of the facility. .

Recommendations made as a result of ES&E's site investigation included:

:;mediating near surface contaminated soils associated with leakage from the

.:Jrmer UST fuel lines, definition of the northern and eastern limits of the free

product plume, further assessment of the western facility property boundary to

locate the area where free produc c oj entered the site, and improved definition of ")

site groundwater flow and aqUifer 3cteristics.

2727FINL001 2-2
\

"--

2.3 Site Characterization Report for the New ADP/ Administration Building

This site characterization was performed in advance of the construction of a

new facility administration building in the vicinity of the present location of the

eastern portion of Buildings 1, 2 and 3. The investigation involved the installation of

six soil borings and two groundwater monitoring wells to evaluate the presence of

volatile organic compounds including BTEX, total petroleum hydrocarbons,-and

RCRA metals, particularly lead. The borings were advanced to a depth of

approximately 21 feet below grade, and soil samples were screened at 5-foot

intervals with a photoionization detector (PID). Samples showing PID readings

above background levels were collected for laboratory analysis.

Monitoring well MW-1 exhibited the presence of free product and levels of

approximately 1,500 ppm total petroleum hydrocarbons (TPH) in groundwater.

TPH levels of up to 2,100 ppm were detected in soil boring SB-5 in the depth .

interval from 5-9 feet below grade. TPH concentrations observed in this boring

were not believed to be associated with the free product and groundwater

contamination in MW-1. "

The proposed location of the new administrative building was just west of

Building· 8, which formerly housed a facility process water supply well that operated

sometime between 1963 and 1973. Versar interviewed DPSC Public Works

personnel in an attempt to obtain all available documentation for the former

process water supply well, however, DPSC personnel were unable to provide any

additional information on this well. The groundwater cone of depression that

preViously existed during the pumping of this supply well may have affected the

migration of free product into this portion of the DPSC facility.

2.4 DPSC Underground Storage Tank Closures

. During the period 1994 to 1995, a total of 10 underground storage tanks were

removed and closed at the DPSC facility by Versar, Inc., American Construction

Services, and Wu and Associates, Inc. The USTs included three 10,DOO-gallon

diesel/gasoline USTs near Building 28, two 10,OOO-gallon DDT USTs near Building

9, one 30,ODO-gallon diesel UST on Rogers Street along the east end of Building 2,

one 550-gallon waste oil UST in Building 8, and three fuel oil USTs (two 10,000-

gallon and one 6,OOO-gallon) along Oregon Avenue.

Although UST closure reports were not available at the time the present

remedial investigation report was in preparation, analytical data from soil samples

collected during these UST removals was considered in modeling and mapping the

extent of petroleum hydrocarbon contaminated media at the DPSC site. These

analytical data are summarized in Tables 2-1, 2-2, and 2-3.

2727ANL001 2-3
TABLE 2-1

DATA SUMMARY: UST SOIL SAMPLING ANALY"rlICAl RESULTS FOR DPSC

GASOLINE STATION (BTEX, GRO, DROi TPH, AND LEAD)

SAMPLE PARAMETERS

SAMPLE SAMPLE SAMPLED DEPTH

NO. DATE BY BENZENE TOLUENE ETHYL TOTAL LEAD 

(ppb) (ppb) BENZENE XYLENES (ppm) (

(ppb) (ppb)

T-1-A 05/07/94 ACS 14' <1.0 <1.0 <1.0 <3.0 NA N

T-1-B 05/07/94 ACS 14' <1.0 1.0 <1.0 4.5 NA 'N

T-1-C 05/07/94 ACS 14' <500 2,500 7,700 17,000 NA N

.' .

T-2-A 05/07/94 ACS 14' <1.0 <1.0 <1.0 <3.1 NA N

T-2-B 05/07/94 ACS 14' <0.96 <0.96 <0.96 <2.9 NA N

T-2-C 05/07/94 ACS 14' 30 <16 25 54 NA N

T-3-A 05/07/94 ACS 14' <1.1 <1.1 <1".1 <3.2 NA N

T-3-B 05/07/94 ACS 14' <1.0 <1.0 <1.0 <3.1 NA N

,

T-3-C 05/07/94 ACS 14' <1.1 <1.1 43 470 NA N

BLANK 05/07/94 ACS ... <1.0 <1.0 <1.0 <3.0 NA N

1001 05/07/94 VERSAR 14' 89 750 7,900 25,000 NA 8,10

1002 05/07/94 VERSAR 14' 6.3 120 355 750 NA 21

05/07/94 VERSAR 14' NA NA NA NA NA <1

1003 

P1 06/02/94 ACS 3' <15 <15 15 51 NA N

P2 06/02/94 ACS 3' <7.9 14 25 80 NA N

P3 06/02/94 ACS 3' <12 <12 38 310 NA N

P4 06/02/94 ACS 3' <15 <15 76 120 NA N
TABLE 2-1

DATA SUMMARY: UST SOIL SAMPLING ANALYTICAL RESULTS FOR DPSC

GASOLINE STATION (BTEX, GRO, ORO, TPH, AND LEAD)

(continued)

SAMPLE PARAMETERS

SAMPLE SAMPLE SAMPLED DEPTH

NO. DATE BY BENZENE TOLUENE ETHYL TOTAL LEAD 

(ppb) (ppb) BENZENE XYLENES (ppm) (

(nnh\ (nnh\

P5 06/02/94 ACS 3' <20 <20 28 100 NA .N

P6 06/02/94 ACS 3' <4.0 <4.0 <4.0 <12 NA NP7 06/02/94 ACS 3' <3.0 22 -<3.0 <9.1 """ NA N

BLANK 06/02/94 "ACS --- NA NA. NA NA NA N

DISPENSER 1" 06/06/94 ACS 3' <26 35 37 150 NA NDISPENSER 2 06/06/94 ACS 3' 370 960 940 33,000 NA NDISPENSER 3 06/06/94 ACS 3' <100 290 380 3,100 NA N

STOCKPILE 06/06/94 ACS --- <25 49 <25 130 NA N

STOCKPILE 06/06/94 ACS -- NA NA NA NA NA N

BLANK 06/06/94 ACS --- NA NA NA NA NA N

GS001 07/06/94 VERSAR 26" <2.0 <2.0 <2.0 <2.0 <47 <

"GS002 07/06/94 VERSAR 26" <1.0 <1.0 <1.0 <2.0 <47 <

GS003 07/06/94 VERSAR 26" NA NA NA NA NA N

GS004 07/06/94 VERSAR 26" 230 11,000 350 3.200 170 1,20

NA NOT ANALYZED
, TABLE 2-2

DATA UST SOIL SAMPLING ANALYTICAL

RESULTS FOR!BUILDING 8 AND ROGERS STREET TANKS

! (BTEX, TPH, AND PCBs)

DATA SUMMARY: 550-GALLON WASTE-OIL TANK AT BUILDING 8

SAMPLE PARAMETERS

SAMPLE SAMPLE SAMPLED DEPTH

NO. DATE BY BENZENE TOLUENE ETHYL TOTAL TPH 

(ppb) (ppb) BENZENE XYLENES (ppm

(ppb) (ppb)

SP-1 01/03/94 VERSAR l' NA NA- NA NA NA 

SP·2 01/03/94 VERSAR l' NA. NA NA NA NA 

SP-3 01/03/94 VERSAR l' NA NA .NA NA NA 

SP-4 01/03/94 VERSAR l' NA NA NA NA NA 

59005 (EAST END) OS/21/94 VERSAR 8' <5 <2 <1 7.6 1,20

DATA SUMMARY: 30,OOO-GALLON DIESEL FUEL TANK AT RqGERS STREET

Sample 1 02/16/95 . WUASSC. 12' <5 <5 1.1 <5 <5 <5 

Sample 2 02/16/95 WUASSC. 12' <5 <5 r <5 <5 <5 

Sample 3 02/16/95 WUASSC. 12' <5 <5 I <5 <5 <5 

NA NOT ANALVZED
r---..

I !

TABLE 2-3

DATA SUMMARY: UST SOIL SAMPLING ANALYTICAL RESULTS

FOR OREGON AVENUE TANKS (BTEX,GRO, ORO, AND TPH)

SAMPLE PARAMETERS

SAMPLE DEPTH

SAMPLE NO. MATRIX DATE ETHYL TOTAL 

BENZENE TOLUENE BENZENE XYLENES GRO ORO 

(ppb) (ppb) (Ppb) (Ppb) (ppm) (ppm) 

TANK 1 SOIL 03/22/94 4' 13 42 85 110 NA NA 

CONTENTS 04/07/95 NA NA NA NA NA NA 

TANK 2 AQUEOUS 03/22/94 4' NO NO NO 2.1 NA NA. 

CONTENTS O4i07i94 NO NO NO NO NA NA 

SS·1 SOIL 03/22/94 4' NA NA NA NA NA NA 

SW CORNER OF EXCAVATION 04/07/94 NA NA NA- NA NA 'NA 

5S-2 SOIL 03/22/94 4' NA' NA NA NA NA NA 

NW CORNER OF EXCAVATION 04i07/94 NA NA NA NA NA NA 

58-3 SOIL 03/22/94 4' NA NA NA ·NA NA NA 

N WALL BETWEEN TANKS 1 & 2 O4i07i94 NA NA NA NA NA NA 

5S-4 SOIL "4' NA NA NA NA NA NA 

SWALL BETWEEN TANK8 1 & 2 04 07 94 NA NA NA NA NA NA 

88·5 SOIL 03/22/94 4' NA NA NA NA NA NA 

NE CORNER OF EXCAVATION 04/07/94 NA NA NA NA NA NA 

S8-6 SOIL 03/22/94 4' NA NA NA NA NA NA 

SE CORNER OF EXCAVATION O4i07i94 NA NA NA NA NA NA 

STOCKPILE SOIL 04/07/94 - NA NA NA NA NA NA 

ORE001 SOIL 07/14/94 14' NA NA NA NA NA NA 

ORE002 SOIL 07/15/94 14' NA NA NA NA NA NA 

STOCKPILE-oROO1 SOIL 07/19/94 - NA NA NA NA 8.9 800 

STOCKPILE·OR002 SOIL 07/19/94 - NA NA NA NA 57 2,200 

STOCKPILE·OROO3 SOIL 07/19/94 - NA NA NA NA 9.3 1,200 

STOCKPILE-OR004 SOIL 07/19/94 - NA NA NA NA 66 4,200 

NA· NOT ANALVZED

NO - NOT DETECTED
(

3.0 REMEDIAL INVESTIGATION OBJECTIVES

The final, complete RI/FS for DPSC will include all of the components

outlined in the EPA's Guidance for Conducting Remedial Investigations and

Feasibility Studies Under CERCLA (1988). However, this Phase I RI, which focused

only on the petroleum hydrocarbon free product plume and the DDT

contamination, represents only a portion of the overall RI/FS. There are certain

unique aspects to the DPSC site that have shaped the technical approach and

remedial investigation objectives. In addition, these objectives have changed from

initial pre-BRAC scoping through post-BRAC execution. These factors, described ,

in the following sections, have resulted in an approach which varies slightly from

the more conventional CERCLA. investigations.

3.1 Original (Pre-BRAC) Objectives

Previous subsurface investigations at D2SGJndicated an extensive

occurrence of petroleum hydrocarbon contamination in the soils and groundwater

underlying the site. In addition, DDT and related pesticide contamination was

identified around the former DDT mixing room and associated UST system. Some '

of the petroleum hydrocarbon contamination may be related to the presence of onsite aboveground and underground storage tanks (ASTs and USTs), but a

significant amount was believed.to be attributed to off-site sources, inclUding the

contiguous, upgradiemt refineries located just to the west of DPSC. The presence

of ,one or more such plumes has had a far reaching effect on construction activities

at the site. According to DPSC personnel, a ban presently exists on new

construction activities due to the dangers and risks of explosion and toxic fume

releases associated with earthwork.

.."__...._.... . During initial scoping, the DPSC facility was actively operating and had not

been slated for closure under the BRAC program. Therefore, the primary

objectives of the RI/FS were to characterize and delineate petroleum hydrocarbon

contamination, DDr contamination, and contamination from other areas of concern

at the facility in order to identify and evaluate remedial alternatives for subsequent

clean-up. The ultimate objective of the pre-BRAC RI/FS was to support the

protection of human health and the environment and to allow for Mure

development of the site. A secondary objective of the RI/FS was to earmark each

of'the sources of petroleum hydrocarbon contamination in various site media and

determine their respective volumetric contributions. It was based on these

objectives that the Draft Project Operations Work Plan for the DPSC RI/FS was

prepared in October 1993.

3.2 Modified (Post-BRAC) Objectives

Following completion of the Draft Project Operations Work Plan for the DPSC

RI/FS in October 1993, the DPSC facility was approved for closure in 1999 'under

the BRAC program. The BRAC Team believed that the petroleum hydrocarbon

2727FINLOO1 3-1
contamination and DDT-contamination at the site represented the primary obstacles ~)

to site transfer and future .site use plans. Therefore, the primary objectives of the

RI/FS VIere modified to characterizing and delineating petroleum hydrocarbon and

DDT contamination for subsequent interim remedial measures, as necessary, and

responsible party identification and cost apportionment. The secondary objectives

of the post-BRAC RI/FS were to characterize and delineate contamination

associated with other areas of concern and to develop subsequent remediation

plans for these other areas of concern so that the site could be transferred in

accordance with BRAC requirements; Based on these modified Objectives, the

Project Operations Work Plan for the DPSC RI/FS·was revised in May 1994.

The revised technical plan broke the investigation down into three separate

components. The first component was delineation of the undifferentiated free

product groundwater plume(s) and associated contaminated soils. This phase of

the study was designed to define the full extent of petroleum hydrocarbon media at

DPSC without regard to distinguishing between on-site and off-site sources. The

second portion of the investigation was structured to differentiate between on-site

and off-site sources contributing to the free product plume, using a number of

strategies and tactics including identification of all pertinent on-site and off-site

UST/AST locations and relevant data, soil gas surveys, free product chemical

characteristics, and historic/current data concerning temporal and spatial

petroleum hydrocarbon distribution trends; however, no off-site monitoring or

sampling was planned during the RI. The third phase of the study was developed -)

to evaluate and characterize the other areas of concern, inclUding the DDT mixing

room and associated USTs, using conventional sampling and analysis techniques.

3.3 Reasons for Phased Investigation Approach

Over the last 75 years, the overall appearance of DPSC has changed little.

The facility has been exclusively used for producing military garments and uniforms

and has not undergone significant modification. The consistent nature of these

activities has had a limiting effect on the type, number, and distribution of areas of

concern (AOCs), including on-site ASTs and USTs, PCB-containing transformers,

asbestos-containing building materials, pesticide storage and application areas,

potential radium contamination in Building 30, railroad spurs for unloading supplies

and raw materials, small-scale RCRA storage areas, combined sewer drains, and

the former incinerator location.

It is possible that each of these areas may have impacted site media to

. some extent, but none were believed to have resulted in contamination comparable

to the magnitude of known petroleum hydrocarbon contamination, or to the

significance of the known DDT contamination. Therefore, DPSC and the BRAe

Team prioritized the characterization ,:ld delineation of the petroleum hydrocarbon

contamination and the DDT contamination for the DPSC RI/FS, because these

known problems represented the greatest obstacle to subsequent site transfer and \

Mure site use plans. Due to funding limitations, these priority objectives were _J

2727ANL001 3-2
c

c

extracted from the overallRI/FS Project Operations Work Plan as Phase I. After

additional funding is made available, the other areas of concern will be evaluated

under Phase II to complete the final RI/FS for the facility.

2727FINLOO1 3-3
(

4.0 SUMMARY OF FI.ELD ACTIVITIES

Nine separate field tasks were performed at DPSC to delineate the extent of

petroleum hydrocarbon contaminated media, to evaluate the presence of other

types of contaminants in site soils and groundwater, and to provide a more

complete geological and hydrogeological characterization (see Attachment 3 for a

chronological summary of these activities). Delineation of the extent of

contamination focused on the distribution of light non-aqueous phase liquids (also

referred to as free product) and petroleum hydrocarbon contaminated soils. The

extent of petroleum hydrocarbon related groundwater contamination was

determined for the shallow portion of the upper aquifer; the vertical extent of

.groundwater·contamination in the aquifer system at DPSC remains to be evaluated.

The logistics of evaluating subsurface conditions and contaminant

distribution at DPSC in a safe and cost effective manner presented a challenge at

the site. Most of the site is occupied by buildings. The intervening roadways have

pavement thicknesses exceeding one foot and are underlain by a dense network of

utilities. In addition, portions of the site are heavily trafficked, and there is a large

__ Vl,orking population. Finally, substantial personal proteCtive equipment was required

during several field tasks due to exceptional,ly high levels of vapors associated with

a gasoline plume that occupies most of the southern portion of the site.

In light of the constraints and costs associated with drilling numerous soil

borings and groundwater monitoring wells, a number of screening surveys were

performed to provide as much information as possible on subsurface conditions

and the probable distribution of volatile and semi-volatile contaminants. These

surveys included a ground penetrating radar (GPR) survey, an active soil gas

survey, a site characterization penetrometer analysis system (SCAPS) survey, a

hydropunch survey, and a passive soil gas survey. At the conclusion of these

surveys, it was clear that the most significant petroleum hydrocarbon contamination

was restricted to the southern portion of DPSC.. From these data, a total 'of sixteen

permanent monitoring wells/borings were installed in key areas to complete

delineation of the free product plume and associated contaminated soils.

4.1 GPR Survey

AGPR survey preceded all intrusive work at DPSC. The GPR survey was

performed to clear 81 proposed active soil gas survey locations. These locations

were distributed more or less uniformly about the entire 86.5 acre site. The 81

.proposed locations were marked out using a full suite of facility' utility layout maps,

a measuring wheel, and fluorescent paint. Each proposed location was assigned

an identification number, using the acronym SG to denote soil gas.

Environmental Services of America (ENSA), Inc. conducted field work at

DPSC on September 24,25, and October 1,1994. The survey was performed

using both a GPR unit and metal detector. A survey grid of 100 square feet (10' x

2727FINLOO1 4-1
10') was established aroundtth"e center of each proposed soil gas sampling -,

location. Each location'was'then surveyed by ENSA personnel under the direct -j

supervision of a Versar construction manager. The decision to accept, modify, or

delete individual proposed soil gas sampling locations was a joint decision of ENSA

technical staff and the Versar task manager. A description of the survey equipment

and procedures and results of the GPR survey are presented in Appendix A.

,.""-

Following the clearance of proposed soil gas survey sampling locations by

ENSA and Versar staff, Pennsylvania One-Call utility clearance service and DPSC

electrical and plumbing supervisors were contacted to review final plans for all

proposed intrusive survey locations. No modifications to the siting of the 81

proposed soil gas sampling locations were requested by either of these groups or

directly by the potentially effected utility services.

The degree of clearance established for intrusive surveys was, in most

instances, 2 to 3 feet around the center poh~t of the 10' x 10' grid. Utilities are so

prevalent under the facility roadways that greater clearance is simply not possible.

DPSC environmental staff declined to allow intrusive surveys to be performed inside

of facility warehouses for health"and safety reasons. Once utility clearance had

been established, all parties involved in subsequent intrusive surveys were directed

to omit sampling locations where survey tool refusal was encountered at depths

between 0 and 10 feet below grade.

The active soil gas survey to be performed at DPSC involved direct push

technology and could be cO:lducted at approved sampling locations without prior

drilling. SCAPS and hydropunch survey locations and soil boring/monitoring well

drill sites required that a pre-drilled core bore first be advanced through the 1+ foot

thickness of cement and asphalt pavement. For an'additional margin of safety, the

intrusive activities were limited to locations within a one-foot radius of the approved

GPR soil gas sampling sites. No damage to Utilities or accidents occurred during

any of the intrusive surveys or drilling activities subsequently performed at DPS9.

4.2 Active Soil Gas Survey

An active soil gas survey was conducted at the DPSC site during the period

September 26 to October 21 t 1994..The objective of the survey was to identify

volatile organic compounds associated with a known free product plume to aid in

the siting of permanent groundwater monitoring wells. A survey grid of 81

sampling locations was established in a uniform pattern aboUt the 86.5 acre DPSC

site. All soil gas sampling locations were pre-cleared for utilities via a GPR survey

and inspection of site utility maps.

Soil gas samples were acquirE·lat depths of 10 to 12 feet below grade using

a Geoprobe 5400 direct push rig. :::xtraction of soil gas from tubing coupled to the

geoprobe screen was accomplishl' .,. using a vacuum pump. Soil gas samples ')

were subsequently transferred to an on-site gas chromatograph-flame ionization -

2727ANL001 4-2
(

c

detector (GC/FID) for analysis using a syringe. GC/FID analyses included total

volatile organic compounds, benzene, toluene, ethylbenzene and xylenes (BTEX).

Data reported for each of these species, as well as total BTEX, is summarized in

Table 4-1. Raw analytical data and direct push sampling protocols are presented in

Appendix B.

The collection of soil gas samples at depths of 10 to 12 feet below grade

was designed to achieve as accurate a reflection as possible of the distribution of

free product and petroleum hydrocarbon contaminated groundwater at the site.

Free product and water table· elevations were known to occur in the depth range

from 15 to 20 feet below grade.

The duration of the active soil gas survey spanned a period of approximately

four weeks. Therefore, the data obtained was not time synchronous across

weather cycles which occurred during that period. Low temperatures and high

barometric pressure may both suppress soil gas levels. Nonetheless, inspection

and interpretation of the soil gas data indicated a strong correlation between free

product occurrence and maximum soil gas concentrations.

Three isoconcentration maps were prepared from the soil gas data obtained

at DPSC: total VOCs, total BTEX, and total VOCs minus total BTEX(Figures 4-1, 4-

2, and 4-3, respectively). The most significant trend observed in all three maps is

the rather abrupt termination of high concentrations of soil gas which occurs just to

the north of Rogers Street During free product level measurements, this

substantial decrease in soil gas concentration was found to be approximately

coincident with the northern.limit of the free product plume.

Total VOC isoconcentrations, shown in Figure 4-1, indicate the presence of

two maxima; one along the western part of building 4 at the southwest portion of

DPSC and another along the eastern segment of Bash Street near the central

portion of bLiilding 9. Total VOC concentrations in these areas attain a maximum

value of 29,975 ppm and 28,340 ppm. respectively. Between these two areas, total

VOCconcentrations decrease to a low of 280 ppm. The reason for the large

decrease in total VOCconcentrations is not clearly understood based on the

available data; but it.may be a result of preferential migration pathways along site

utilities. Total VOCs decline precipitously north of Rogers Street, beyond the

northern limit of the free product plume. In this area, maximum concentrations do

not exceed 85 ppm.

. Total BTEX and total VOCs minus total BTEX isoconcentration maps,

presented as Figures 4-2 and 4-3. show the same general pattern as the total

VOCs isoconcentration map. All three maps give a good approximation of the

location of the underlying free product plume. However,.the soil gas data ·do not

differentiate between the various petroleum hydrocarbon components of the plume.

The sampling of free product and groundwater conducted subsequent to the active

2727FINL001 4-3
soil gas survey indicated that the free product plume was not several distinct

petroleu~; hydrocarbon plumes but rather a gasoline and diesel mixture.

',', a occurrence of high levels of soil gas, particularly BTEX which reached

concentrations exceeding 12,000 ppm, necessitated the use of level B personal

protective equipment at certain times during the advancement of soil borings and

installation of monitoring wells. Depending on the degree of on- and off-site

migration of these vapors, they may present a hazard to potential receptors.

Basements are present in portions of buildings 9, 13, and 14, and are also present

in certain residential areas to the southeast of DPSC.' However, the currently

available data do not indicate whether or not vapors have migrated to these off-site

residential areas. The presence of a low permeability surficial clay unit, discussed

in Section 5 of this report, and pavement thicknesses in excess of one foot appear

to constrain vertical migration of a vapor phase plume to the surface. However, the

network of underground utilities at DPSC, ~2'1jcularly the combined sanitarystormwater sewer system, is likely to facilitf.:> the migration of vaporous phase

hydrocarbons (a detailed discussion of th€::~ffect of these utilities on vapor and free

product phase hydrocarbons is presented in Section 11.2 of this report).

4.3 Site Characterization Analysis Penetrometer System Survey

{SCAPS}

The Site Characterization Analysis Penetrometer System (SCAPS) survey )

incorporates existing cone penetrometer technology to evaluate in-situ geophysical '

soil properties while simultaneously using sensors to determine the presence of

contaminants. Specifically, laser induced fluorescence is measured to evaluate tho

presence and location of petroleum hydrocarbons in the subsurface. A more

detailed explanation of the technology is found in Appendix C.

The SCAPS survey was performed at DPSC to preliminarily identify the free

product plume for subsequent siting of permanent groundwater monitoring wells,

which were used for definition of the extent of the free product plume. The survey

also provided information concerning the vertical distribution of petroleum

hydrocarbons in subsurface soils. The development of the SCAPS scope of work

was guided by the active soil gas survey results and exi::;ing information

concerning the distribution of free produCt at DPSC. The original work scope for

the SCAPS survey (Appendix C) called for utilizing this technology at 30 separate

locations at DPSC "conjunction with hydropunch sampling. The final

configuration of th~. 3CAPS survey ,is shown in Figure 4-4. SCAPS locations are

depicted relative to active soil gas and hydropunch sampling locations.

Work on this task began the week of October 24, 1994. The survey

commenced in the southwestern comer of DPSC, an area of known free product

occurrence. Here, it was intended that a calit.::;-ation be developed for the SCAPS

output by correlating cone penetrometer (CPT) and laser induced fluorescence

(UF) panel plo!s with soil boring logs and free product thickness measurements

2"'INL001 4-4
from existing monitoring wells MW-3 and MW-6. During the performance of the

SCAPS survey at these iirst two locations, it became immediately obvious that the

presence of cobbles at of near water table depth was going to be an obstacle to

the successful insertion of the drive rods into the subsurface. In fact, due to

continuing tool refusal, no relationship could be established between the CPT/L1F

and soil boring/free product data. However, because the SCAPS survey was

being conducted as a screening survey to evaluate potential locations for

permanent groundwater monitoring wells, the lack of calibration data for the L1F

panel plots did not adversely impact the functionality of the resulting data.

As the survey proceeded, the degree of refusal eventually dictated that the

total survey depth needed to be restricted to at or slightly below water table depth

(~15 • 20 feet below grade), where the cobbles were so prevalent. This was

determined to be the minimum effective survey depth to be able to identify free

product occurrence at the site. At first, the survey was run using the combined

CPT/UF tools. However, significant downtime OCCUR'&! as the CPT tool became

damaged while attempting to insert it to this minimum depth. Consequently, a

decision was made to use resistivity and UF in lieu of the CPT/UF combination.

The resistivity tool was also unable to stand up to penetration of the cobble layer;

hence, the survey was further limited to just running the UFo After surveying 14

locations, the SCAPS survey was terminated by the ACOE due to extensive

equipment damage. Of the 14 SCAPS survey locations, five incorporated the use

of CPT/UF, four were run using resistivity/UF, and five were run with L1F only.

The SCAPS UF data are summarized in Table 4-2. This table summarizes

panel plot data in terms of the depth and amplitude of significant fluorescence

intensity peaks. CPT and resistivity data from the SCAPS survey proved to be only

marginally useful in the geologic characterization of the DPSC site. Panel plots and

··.digital..d~~~ for the CPT, resistivity, and UF surveys are presented in Appendix C.

Four substantive observations were developed as a result of the SCAPS

survey:

• UF detectable petroleum hydrocarbon contamination was not found

above water table depths, suggesting that free product occurrence at

DPSC is not attributable to sLirface or near-surface releases.

• UF detectable petroleum hydrocarbon contaminated media are limited

to zones which are approximately 2 to 4 feet in overall thickness; this

also suggests the introduction of this contamination via groundwater

flow from an off-site source or sources.

•

2727FJNL001

Petroleum hydrocarbons detected by UF occur both as free product

and as a dissolved phase; fluorescence intensity does not differentiate

between these two modes of occurrence.

4-5
• SCAPS pinpoints-the stratigraphic positions of petroleum hydrocarbon -..,

contamination with:unique accuracy; L1F data indicated petroleum

hydrocarbon contamination at depths below the water table in at least

two instances. UF data obtained at locations SG-6 and SG-42 both

indicated the presence of petroleum hydrocarbons at a depth interval

of 23 - 25 feet below grade, a full 5 feet lower than the water table at

these two locations. In the case of SG-6, petroleum hydrocarbons

occur beneath the base of a clay unit, while in SG-42 a gravel lenses

appears to control their occurrence. In both instances, the occurrence

of petroleum hydrocarbons at these specific depths was confirmed by

subsequent hydropunch sampling. The significance of this mode of

occurrence of petroleum hydrocarbons below water table depths is

further discussed in Section 5.0.

The SCAPS survey performed at DPSC was a partial success. The UF data

was remarkably accurate in pinpointing the depth and thickness of petroleum

hydrocarbons and served as a guide to determining screen depths in both

hydropunch and monitoring well locations. It also identified some unusual modes

of petroleum hydrocarbon occurrence which may·reflect some unique transport

pathways or accumulation mechanisms.

D,ue to the previously discussed logistical problems, the survey was

terminated after 1.5 weeks and was not completed. Therefore, it did not, by itself,

delineate the extent of the free product plume at this site. It did, however, identify

several areas of petroleum hydrocarbon contamination that were not evident from

the active soil gas survey and that warranted the siting of monitoring wells. These

locations included SG-42 and SG-6S, which were subsequently converted to

monitoring wells MW-19 and MW-12, respectively. Under ideal subsurface

conditions, this technology would be an' extremely cost-effective approach to

delineating petroleum hydrocarbon contamination.

4.4 Hydropunch Sampling

Hydropunch sampling was performed in conjunction with the SCAPS survey

conducted from October 24 to November 3, 1994. Initially, the objective of the

hydropunch survey was to delineate the extent of free product as identified from

the active soil gas arid SCAPS data. Hydropunch samples were collected via a

screen inserted down the SCAPS drill rods. ' Due to continuous equipment '

breakdowns during the SCAPS activities and the limited time trame that the

hydropunch sampler was on-site at DPSC. the original hydropunch sampling

objectives were modified by Versar after consultation with the ACOE and PADER.

Based on the new Objectives, hydropunch sampling was focused along the

western, presumed upgradient site boundary of the facility to ascertain whether free

product existed in and was migrating through this area. Several hydropunch

samples were also acquired at the southeastern corner of DPSC to determine free

product plume limits in that area as well.

2727F1NL001 4-6
(

r

Eight hydropunch samples wete collected at OPSC and analyzed for total

petroleum hydrocarbons (TPH), gasoline range organics (GRO), diesel range

organics (ORO), and BTEX by USEPA method 8015 (modified California LUFT).

Each sample was collected at the water table depth. Two equipment blanks were

also collected and analyzed for these parameters. The analytical results for

hydropunch sampling are presented in Table 4-3. Hydropunch data was separated

into two distinct geographic groups for purposes of discussion.

Group 1 consists of six hydropunch samples collected along the western site

boundary. From south to north, this group includes HP-4, HP-5, HP-6, HP-3, HP-S

and HP-7. Inspection of Table 4-3 reveals that low levels of GRO and ORO, with

concentrations ranging from 0.58 to 100 ppm, were encountered at all locations

except HP-6. Free product was not encountered, nor was BTEX detected in any of

the six hydropunch samples. ORO concentrations appeared to be highest at the

southwestern corner of the site reaching a maximum of 100 ppm in HP-5;

otherwise, no trend revealing either increasing or decreasing concentrations in a

northerly or southerly direction existed for GRO and ORO species.

The laboratory case narrative which accompanieq the analytical results for

·sample HP-3 characterized petroleum hydrocarbon contamination as follows:

·Please note that the BTEX analysis appears anomalous when compared with the

GRO analysis. Both BTEX and GRO chromatqgrams show multiple hydrocarbon

peaks which do not confirm with benzene, ethylbenzene, toluene or xylene,

although they elute within the gasoline range.· The low concentrations of GRO and

ORO, along with the absence of BTEX in hydropunch samples collected along the

western site boundary are indicative of a petroleum hydrocarbon signature which is

dissimilar to the strong gasoline/diesel mixture presently existing along the

southern portion of the OPSC property. Groundwater samples in the latter area

contain exceptionally high concentrations of GRO, ORO and BTEX. A more

detailed discussion of groundwater sampling results is presented in Sections 4.9.2

and 7.2.3.· .

The relatively low levels of petroleum hydrocarbon contamination along the

west site boundary had formerly been recognized in the OPSC Fuel Contamination

Study performed in 1988. This study attributed the low level of petroleum

hydrocarbon contamination along the westem site boundary to a number of

possible sources including, ~e significant thickness of fill in the northwestem

corner of the site, train refuse, contaminated railroad fill, and oily run-off from

numerous parking lots.· Two other observations suggest possi!;>le sources for the

.low level petroleum hydrocarbon contamination at the west site boundary:

• The alignment of the six hydropunch sampling locations is near and

runs parallel to a north-south trending sewer line that exits DPSC at its

northwest comer.

2727FINL001 4-7
• According to in~'::rviews recorded in ES&E's 1991 engineering report, a ')

sump in the D,. i:'~ fuel tunnel formerly flowed into a lift station in

Building 18, wi;. ,13 it was subsequently discharged to a drain field just

to the west of Building 18.

To summarize, the chemical signature of petroleum hydrocarbon

contamination as detected in hydropunch samples acquired along the western

DPSC boundary does not correlate well with the distinctive gasoline/diesel fuel

fingerprint that is associated with the free product plume known to exist at the

southern portion of the site. Fuel c0':ltamination in groundwater at the western

portion of the site does not occur as a well defined plume. Petroleum hydrocarbon

contamination in this area is probably attributable to a number of various minor

sources, as discussed in the previous paragraph.

Group 2 hydropunch samples were collected at two locations in the

southeastern corner of DPSC. Sample HP-1 was coll~ed in the far southeastern

corner of DPSC. Benzene was the only petroleum hydrocarbon detected at this

location with f~ ,:';')ncentration of only 6 ppb. This hydropunch location,.along with

analytical data ~:"/ailable from four groundwater monitoring wells installed by SEPTA

j~st to the east, indicate the southeasterly limit of the free product plume at DPSC.

Hydropunch sample HP-2 w~ acquired from a location approximately 250

feet to the west of HP-1.Free product was recognized in this hydropunch sample)

collected at a depth a 23 to 25 feet below grade. Analytical results indicated a '

GRO level of 340,000 ppm and total BTEX exceeding 10,000 ppm; these data are

consistent with the occurrence of the massive gasoline/diesel free product plume

developed at thn southern part of DPSC•

.- '-~_...J!1_e occurrence of free product at this depth, 4 feet below the present water

table elevation for this part of the facility, demonstrates that free product migration

and accumulation at DPSC is significantly influenced by site geology. In HP-2, free

product appears to have been trapped beneath a low permeability clay unit, .

possibly at a time when the water table elevation fluctuated to lower levels.

This mode of free product occurrence is only evident through the combined

SCAPS/hydropunch survey. Upon. penetration of the surficial clay unit with a well

screen, the previously trapped free product migrates into the well, where it appears

as a sheen and can be measured with an interface probe. If the surficial clay unit

was not penetrated, the presence of free product would go undetected because it

would remain below the clay. It is also notable that the thickness of free product

as identified by the SCAPS/hydropunch survey in HP-2, which was measured at

approximately 2 feet from laser induced fluorescence, is greater than the 0.04 feet

thickness measured with an interface probe following the installation of monitoring

well MW-9 at this location (Table 4-4 cross-references soil gas, SCAPS,

hydropunch, and monitoring well identification numbers). However, as described

2727ANL001 4-8
(

previously, the SCAPS L1F panel plots do not differentiate between free product

and contaminated soil, which may explain this apparent discrepancy.

The effects of site geology on the migration and accumulation of petroleum

hydrocarbons at DPSC are discussed further in Section 5.3. Analytical data for

hydropunch sampling may be found in Appendix D.

4.5 Soil Boring and Monitoring Well Installation

Field work for soil borings and groundwater monitoring well installation was

initiated on November 28, 1994. Huntingdon Empire Soils, Inc. (Empire) was

retained by Versar, Inc. to drill the soil borings. All work was performed in

accordance with the Project Operations Work Plan and subsequent approved

modifications. These modifications included continuous split-spoon sampling,

replacement of two deep wells with the shallow CSX wells, and changes to well

locations. The modifications to the Project Operations Work Plan are contained in

Appendix I. Soil boring and monitoring well locations are shown in Figure 4-5.

4.5.1 Soil Borings

Sixteen soil borings were drilled during this phase and converted into

groundwater monitoring wells. Fourteen of the borings were located on the DPSC

site, within a 1 to 2-foot radius of the soil gas (SG) locations previously cleared for

underground utilities by GPR. The other two borings (MW-CSX1 and MW-CSX2)

are located on an adjacent property owned by CSX Railroad. An entry agreement

between CSX Railroad and Versar was executed allowing Empire Soils access to

the off-site drilling locations. Locations of these wells were cleared for underground

utilities prior to intrusive activities. The mud rotary drilling method was used on the

two deep soil borings (MW-6D &MW-20D). All other soil borings were drilled with

8.25-inch outer diameter hollow-stem augers. All down-hole equipment was steam

cleaned betWeen soil borings. Soil boring logs are contained in Appendix G.

A copy of the Versar Health and Safety Plan (HASP) was provided to all

subcontractors and field personnel. Breathing zone air was continuously monitored

with an HNu photoionization detector to measure VOCs. When the levels of VOCs

continuously exceeded 1 or 5 ppm above background levels in the breathing zone,

Personal Protective Equipment (PPE) was upgraded to either level C or level B,

respectively. On several of the soil borings, part of the drilling near and below the

water table was performed in level B PPE, due to presence of either soil gas or free

product. All personnel working on site had undertaken 4D-hour OSHA health and

safety training for hazardous waste site investigation. Appropriate health and safety

measures were adopted as and when required.

2727FINL001 4-9
4.5.2 Monitorin "Vell Installation

Huntin~7,,<:i1 Empire Joils, Inc., performed drilling, well installation, and well

development operations. Sixteen groundwater monitoring wells were installed, 14

on DPSC property and 2 on CSX Railroad property along the western boundary of

DPSC. Of the 14 wells installed on the DPSC property, 12 were of shallow depth

«34 feet in depth) and 2 were deep wells (>60 feet). The two deep wells, MW-6D

and MW-20D, complete couplets with the previously installed well MW-6 and a

recently installed well MW-20, respectively. The two wells on CSX Railroad

property are of intermediate depth (50-50 feet).

All groundwater monitoring wells were installed between November 28, 1994

and FebrL!ary 28, 1995. The work extended beyond the ciJinally proposed

schedule due primarily to the need to conduct drilling and 'oveU installation activitieD

in Level C and/or Level B PPE Whenever possible, attempts were made to install

wells at locations with lower levels of expected contamination first, moving onto

areas ofsuspected higher contamination. In order to execute the field operations

efficiently, it was not always possible to adhere strictly to the above schedule.

4.5.2.1 Well Construction

Table 4-5 contains detailed ir)formation for each well installed, including north

and east coordinates, ground and top of casing (TOC) elevations, total depth and

diameter of the actual borehole, and lengths and intervals of the screen, grout,

bentonite and gravel zones. These and other details are shown on well

construction diagrams in Appendix I.

All wells were installed in keeping with the Project Op::;;-ations Work plan

dated May 23, 1994, and ACOE protocols. Deviations from these guidelines were

noted and communicated to the ACOE project manager and are discussed in

Section 4.5.3.

-;

. --~-

Except tor the two deep wells, MW-20D and MW-6D, all other wells were

installed with the hollow-stem auger technique. Deep wells MW-6D and MW-20D

were drilled' using the mud rotary technique. For the rest of the wells, 8.25-inch

outer diameter hollow stem augers were used to advance the boreholes 10 feet

into the water table and 3 feet beyond that Boreholes were backfilled 3 feet from

the bottom up with clean morie #1 gravel before the casing and screens were

installed. For most of the wells, a 15-foot section of screen was used. Schedule

40, PVC casings, and slot 10 screens were used on all the wells. The gravel zone

was extended to 5 feet above the top of the screen. A 5-foot bentonite pellet seal

was placed on top of the gravel, and a cement/bentonite grout was placed on top

of the bentonite. All wells, except fOj MW-15, MW-17, MW-19, and MW-20D, have

8-inch flush mounts installed at grade. MW-20D has a 12-inch flush mount and

MW-15, MW-17, and MW-19 are stick-ups and are equipped with steel protective )

casings with protective pickets around them. The deep well MW-20D contains an ~-

2727FINLOJ1 4-10
(

"-..

8-inch diameter outer surface steel casing grouted into clay at 63 feet bgs. Any

deviations from the proposed work plan are noted below. Work plan modifications

with respect to deep well construction are contained in Appendix I.

4.5.3 Variances from the Proposed Work Plan

Several changes to the approved Project Operations Work Plan were"-

necessitated by varying site conditions. These changes are summarized in this

section.

The location of one weill MW-12, was changed slightly. MW-12, originally

sited to be at SG-68, was moved from the middle of the road to approximately 12

feet east on the grass to avoid a suspected underground utility.

Except for wells MW-6D, MW-9, MW-18, MW-20D and MW-CSX1, the

screens on all other wells were installed so that 10 feet of screen extends under the

existing water table and 5 feet extends above the water table to account for

seasonal water table fluctuations and to identify/capture the light Non-Aqueous

Phase liquid (LNAPL) floating on top of the water table.. Well screens for MW-9,

M'W-18, were extended approximately 15 and 13 feet below the water table. Deep

wells MW-6D and MW-20D are screened in the lower portion of the aquifer, and

thus are fully submerged and equipped with 10 and 15 feet of screen, respectively.

(~ MW-CSX1 is equipped with 10 feet of screen. .

• MW-9: During split spoon sampling, the depth to water level was

anticipated to be approximately 24 feet bgs. Historically, the water

table on the DPSC site had been known to occur between 18 and 21

feet bgs~ SCAPS fluorescent intensity.suggested the presence of free

product at approximately 24 to 26 feet bgs. Therefore, it was

advisable to screen the 24 to 26 feet bgs as indicated by SCAPS. A

clay layer extended from approximately 14 to 26 feet bgs..

Consequently, a 20-foot screen (13 to 33 feet bgs) was installed in

order to capture seasonal groundwater fluctuations, if the true water

table should prove to be 19 feet bgs, and also to tap the

sandy/gravelly strata below the clay layer. The static water level in

MW-9 was SUbsequently found to be approximately 19.0 feet bgs.

• MW-18: During split-spoon sampling, the first water was encountered at

14 feet bgs, approximately 4 to 5 feet above the groundwater table

known to occur at the DPSC site. It was suspected to be perched

water. An 18-foot section of screen was installed from 28.7 feet to 10.7

feet bgs. If the water table actually occurs at 14 feet bgs, this

increased screen length ensures that any contamination on top of the

water table can be monitored during seasonal water table fluctuations.

At the same time, this screened interval also taps the sandy/gravelly

2727FINL001 4-11
zone from.20t028 feet bps Thg:static water level in -MW-18 was

sUbsequently found to be .:"oximately 15.5 feet bgs.. ;..,~- -

•.. MW-6D was originally scheduled to be a deep well to monitor the water

quality in the deeper aquifer, with a surface casing extending into the

confining unit. No confining unit or identifiable clay was observed while

drilling to a total depth of 88 feet bgs. Upon retrieval of the drill bit, the

borehole caved in to approximately n feet below grade. It was

resolved, with ACOEconcurrence, to install the screen approximately

at same elevation as the screen in MW-20D. A 10-foot section of

screen was installed from 64 to 74 feet. No surface casing was

installed at this well location.

• During the installation of well MN-CSX1, located on CSX Railroad

property,.an anomaly was noted. The ground surface elevation is

approximately 20 to 23 feet higher than the wells located on DPSC

property. The' borehole was advanced with 8.25-inch outer diameter

hollow-stem augers. Split-spoon samples were collected every 5 feet

down to 20 feet and every 2 feet thereafter., A layer of clayey silt/silty

clay was encountered in the interval from approximately 32 to 44 feet

bgs. At approximately 46 feet, moistness/dampness was noted in the

samples. Subsequently, two samples were noted to be moist to

slightly wet and contained a slight petroleum odor. When drilling

reached approximately 54 feet bgs, the wat~r level i:-"!de the augers

rose to a depth of 16.5 feet below grade. At the en: ;:>f the day,

augers were left in the ground at 54 feet bgs. The water level inside

the augers remained at a level of 16.5 feet below grade until the next

morning. Technical representatives from the ACOE geotechnical group

oversaw the installation 0: this well and discussed the site observations

with the Versar geologist After an evaluation of site '-~onditions, Versar

and the ACOE geotechnical group mutually agreed that a confined

aquifer, possibly the Old Bridge Sand, had been penetrated and the

latter portion of the borehold should be backfilled to seal off this zone.

The borehole was backfilled with bentonite from 52 to 54 feet bgs, and

a 10-foot section of screen was installed from 40 to 50 feet bgs.

Subsequently, the static groundwater in this well was equilibrated at

45.7 feet bgs (5.6 feet above MSL), a level consistent with water table

elevations in the unconfined upper aquifer.

On most wells, the gravel zone extends 5 feet above the top of screen

followed by a 5-foot interval of bentonite and cement/bentonite grout to the top

thereafter. As indicated in Table 4-5, these measurements differ slightly in MW-6D,

MW-18, MW-CSX1, MW-CSX2 and MW-20D.

Dl"',g mud rotary drilling of MW-20D, variou~ oroblems were encountered. )

From 1Q.. feet the borehole continually caved in due to the presence offill,

2727ANL001 4-12
r

resulting in a larger diameter hole and extremely slow drill bit advancement. It was

decided to sink a larger steel diameter (14 inch) casing down to a depth of 28 feet

bgs to prevent collapse. This casing was subsequently to be pulled out upon

sinking the 8-inch diameter surface casing. However, various attempts failed to

retrieve the larger casing, and it was laftin place ata depth of approximately 28

feet bgs. After installing the casing, the well was drilled to approximately 90 feet

bgs.

4.5~4 Well Development

Following installation, the groundwater monitoring wells were developed to

remove fines/silts and residual drilling fluids O.e.; drilling mud or water) added

during well construction. Proper development of wells is required to establish a

good hydraulic connection between the·existing formation and the well screen and

ensures recovery of representative formation water during groundwater sampling

events.

Prior to development, the bottom of each well was sounded with a weighted

_. tape; depth to water and LNAPLs, if present, were -reqorded..Where possible, wells

were evacuated of at least 3 to 5 times the volume of standing water in the well, in

addition to any water added during well installation. Wells with poor yields were

bailed dry more than once. MW-9, MW-16, MW-17, and MW-CSX1 exhibited

extremely low yields/recharges and were bailed with decontaminated PVC bailers

on more than one day. MW-20 was developed prior to installation of MW-20D and

had to be redeveloped after MW-20D was installed. Detailed information regarding

well development is contained in Table 4-6. The well development field data forms

are contained in AppendiX J.

Development was accomplished by using submersible pumps and/or PVC

bailers. On wells developed with submersible pumps, frequent surging with the

pump was done to clear out fines in and around the gravel pack. Huntingdon

Empire Soils conducted development activities for the new wells in conjunction with

installation. Versar monitored each development process and tested the

groundwater with a pH meter, a condUctivity meter, thermometer, and a turbidity

meter. Development was considered complete when pH, conductivity, and

temperature readings were relatively consiste·nt.

4.5.5 Equipment Decontamination

In accordance with ACOE's/DPSC's requirements and the Project

Operations Work Plan, no solvents were used on site during soil sampling and

monitoring well installation and development. All down-hole equipment was steam

cleaned between soil borings. S8lit-spoons were steam cleaned between soil

borings, scrubbed with A1conoxT detergent, and rinsed with clean water between

sampling events.

2727FINL001 4-13
j\fter each well development, PVC bailers and submersible pumps were

decontQminated in accordance with the Project Operations Work Plan and ACOE

protocols. Submersible,pumps used for de'lelopment were steam cleaned,

scrubbed with A1conoxT ,purged with clean water, and rinsed with 01 water.

Dedicated PVC bailers were used for well purging. Well development and

decontamination fluids/water thus generated were properly contained along with

the rest of the investigation derived waste (lOW) for laboratory analysis and ..-

disposal.

4.5.6 Investigation Derived Waste (lOW) Disp~13al

All soil cuttin;Js, grour::iwater, and waste generated during field activities

were contained in 55-gallon drums for sampling and disposal. Versar sampled the

lOW, contained the 10WJn 55-gallon drums, labeled :l:e drums to identity the '

source, packed them appropriately, and staged the· In wooaen pallets for piCk-up

and storage on-site by OPSC. OPSC personnel mE .Aged and disposed of the

lOW. According to the sampling protocol of OPSC's contracto". Laidlaw. Inc., 10%

of the drums were subsequently sampled and analyzed for fuli :oxicity characteristic

leaching procedure (TCLP) parameters, and laboratory results were furnished to

OPSC within three weeks of sampling.

·.6 SoH Sampling

Except for one deep soil boring (MW-200) and two intermediate depth soil

borings (MW-CSX1 & MW-CSX2) located on CSX Railroad property along the

westen :)oundary of DPSC, continuous split-spoon sampling was performed on all

other soil borings. 'Split spoon soil samples were collected and field screened by .

:<1 HNu/PIO. On MW-200, MW-CSX1, and MW-CSX2, soil sampling was

tJerformed every 5 feet from 0 to 20 feet and continuously thereafter because in the

case of MW-200, continuous sampling had already been performed on the shallow

well (MW-20) located adjacent to this well and lithologic information from 0 to ~O

feat was already available. For the two CSX wells, the first 20 feet were suspected

to be "fill.· The difference in ground surface elevations between the CSX wells and

DOSC site is approximately 22 feet ;~Jl samples were collected in laboratory

..Jpplied jars. HNu readings are pi ...anted in Table 4-7.

At the end of each boring, two soil samples, one with the highest HNu

reading and another at the soil/free product or soil/gro:mdwater interface, were

selected for laboratory analysis. The two sets of samples were poured into

separate decontaminated stainless steel bowls. The volatile organic compound

samples were then collected with stainless steel spatulas and transferred to

appropriate labeled laboratory containers. Following collection of the volatile

organic sample~ the remaining soil was quickly homogenized with steel spatulas,

and transferre labeled laboratory containers and preserved on ice. No soil

samples werE ..;~;ted on MW-200 for chemical analysis because soil samples

had already b.. ~n collected from the adjacent .MW-20. Because elevated HNu

'--)

2727FINL001 4-14
I.

~.

readings were not detected, only orie soil sample (at the soil/water interface) was

collected on MW-18.· On MW-15. a 16 to 18 foot split-spoon sample was taken by

PADER. In spite of a high HNu reading, split-spoon sampling at 18 to 20 feet did

not yield enough soil volume; hence. a 14 to 16 foot split-spoon sample was

collected as S-17. All laboratory soil samples were analyzed for the following

parameters:

TCl VOCs

TCl SVOCs

TCl Pesticides/PCBs

Total Metals

Total Petroleum Hydrocarbons

Diesel Range Organics .

Gasoline Range Organics

Cyanide

SW846

SW846

SW846

SW846

SW846

SW846

SW846

SW846

Method 8240

Method 8270

Method 8080

Method 7000/6010

Method 418.1

Method 8015A

Method 8015A

Method 335.2

In order to be able to compare the analytical data with Sun Oil's analytical

data, the analytical methods used were in accordance with the requirements of the

Pennsylvania Department of Environmental Resources (PADER). Soil analytical

data summary tables showing analytical parameters are included as follows:

Data Summary: Table 4-8~ Soil Sampling Analytical Results (TPH, GRO,

ORO. and BTEX)

. Data Summary: Table 4-9: Soil Sampling Analytical results (TcL Organic

Compounds)

Data Summary: Table 4-10: Soil Sampling Analytical Results (TAL

inorganic Compounds)

Actual laboratory analytical data for the soil samples are contained in Appendix O.

Because of their sheer volume, raw data are not included in this report.

Prior to beginning each soil boring, field/equipment blanks (FB/EB) were

collected. alternating between steel bowls and split spoons. In accordance with the

laboratory protocols, no matrix spike/matrix spike duplicate (MS/MSD) was

collected during soil sampling.

One sample from each boring was selected for geotechnical analyses to

confirm soil classification done in the field. Overall. four Shelby tube samples were

collected for estimation of various geotechnical parameters. One turned out to be

sand; hence, only three tube samples were sent for geotechnical analysis. Upon

retrieval. Shelby tubes were immediately sealed with hot wax, stored, and

transported in accordance with applicable American Society of Testing Materials

(ASTM) .protocol. Geotechnical data is presented and discussed in Section 5.2.

The rest of the soil samples were archived with the ACOE.

2727FINL001 4-15
4.7 Surveying

James M. Stewart, Inc., a Pennsylvania licensed land surveyor, was retained

by Versar to perform all surveying. Eighty-two soil gas (SG) and sixteen recently

installed groundwater monitoring wells were surveyed. In addition, previously

existing wells MW-1, MW-3, MW-6, MW-1A, MW-2A and four wells located on

SEPTA property were surveyed. Monitoring wells were surveyed for elevations and

coordinates of the inner PVC casing, outer protective casing/flush mount, and

ground surface; Two monuments, S-1 and S-6, located on Sun Oil's property,

were also surveyed. Building corners at the DPSC were also surveyed to establish

an accurate AutoCad base map for all subsequent mapping and modeling.

All locations were surveyed for horizontal (X & Y) coordinates and vertical

(Z) coordinates. Horizontal locations were surveyed for latitude/longitude and

northing/easting coordinates. Elevations of all locations were surveyed with

reference to National ~eodetic Vertical Datum (NGVD).

The following Data and Bench Marks were used:

--. Horizontal Datum: Pennsylvania State Plane Coordinates NAD 27 South Zone

Vertical Datum: NGVD 1929

Bench Mark Used: NGS N 276

Horizontal Monument: . USACE Fort 2, 1987

Anumber of inconsistencies were observed with respect to survey data for

previously installed wells on site and the Sun Oil Company refinery south yard

monuments S-1 and S-6.

1

;'

.",

1

• The elevations of 3 previously installed wells on DPSC were checked for

accuracy and previously documented values were found to be 0.30 feet

more than the currently surveyed values. Horizontal coordinates of these

same wells were found to be -45 feet (north) and +5783 ·feet (east) when

compared to the currently surveyed values.

• The coordinates of the Sun monument S-1 were found to be + 11.45 feet

(north) and -8.80 feet (east) compared to the currently surveyed values.

• The elevations of Sun monuments S-1 and S-6 are found to be +1.13 and

+ 1.05 feet, respectively, compared to the currently surveyed ·values.

• It was also noted that elevations of the soil borings surveyed by the Corps

of Engineers, Baltimore District, during the Fuel Contamination Study

completed in 1987-88, were referenced to the City of Philadelphia plan

elevation which is found to be 5.96 feet higher than NGVD. All survey

data collected along with explanation of the observations made are --)

presented in Appendix E. )

2727FINL001 4-16
(

(

4.8 Synoptic Groundwater and Free Product Level Measurements

The purpose of taking synoptic O.e., simultaneous) groundwater level

measurements is to generate a composite water table contour map of both the Sun

Oil Company and DPSC sites to infer the groundwater flow direction. Three rounds

of synoptic groundwater level measurements were taken during this phase of the

project. All these synoptic levels were taken simultaneously with Sun Oil's synoptic

groundwater and free product level measurements. Sun Oil's measurements were

taken by its consultants, Groundwater and Environmental Services, Inc. (GES).

These data were exchanged.

October 21, 1994, Groundwater and Free Product Level Measurement:

Water and free product levels in 9 wells on DPSC and 14 wells on the Sun Oil

Company site were measured. DPSC measurements are presented on Table 4-11.

Sun Oil Company measurements are presented in Appendix K Water table

elevations are referenced to Sun monuments S-1 an~S~6 ..

December 14,1994, Groundwater and Free Product Level Measurement:

Groundwater and free product levels in 9 wells on DPSC, 36 wells on the Sun Oil

'Company site, and 3 wells on the SEPTA site were measured. DPSC·

measurements are presented in Table 4-12. Sun Oil Company measurements are

presented·in Appendix K Water taple elevations are referenced to Sun monuments

8-1 and S-6. .

March 1 and 2, 1995, Groundwater and Free Product Level

Measurement: Groundwater and free product levels in 25 wells (23 on DPSC

property and 2 on CSX Railroad property) were measured along with 36 wells on

the Sun Oil Company south yard and 4 wells at the SEPTA south garage. DPSC

.. meas.u!~ments are presented on Table 4-13. Sun Oil Company measurements are

presented in Appendix K Groundwater and free product levels in four wells

located at SEPTA's south garage were also measured by Sun Oil Company's

consultant (GES). .

The March 1-2, 1995, measurements were used to generate the Composite

Groundwater Table Elevation Map.

Wells were allowed to vent, and the water level was allowed to equilibrate for

a few minutes prior to measuring depth to water level (DlW) and/or depth to

product (DTP). An oil/water interface meter and an electronic water level indicator

(M-Scope1M) were used. All depths were measured from the top of the PVC casing

(TOC). Equipment was decontaminated between each well as follows: .

Potable water rinse

Hexane spray

Deionized water rinse

2727FINL001 4-17
In wells with free product. DlW and DTP were taken three times to remove .~

any ina:curacies resulting from equipment malfunction or from free product coating -

the prooe.

As discussed in Section 4.7, all measurements on DPSC wells are referenced

to NGVD. Measurements on Sun Oil Co. wells are referenced to monuments S-1

and 8-6 on the Sun site. The elevations of these monuments were found to be

+1.13 and +1.05, when compared to previously surveyed values, above NGVD.

Measurements contained in Appendix K, March 1-2, 1995, Water Table Elevation

Data, reflect corrected readings with respect to NGVD. In wells with free product,

adjusted water table elevations were calculated according to the following formula:

AWL = TOC - (DlW-o.75*PT)

Where:

AWL = Adjusted Water Level Elevation in feet, above NGVD

TOC = Top of Casing Elevation in feet, above NGVD

DlW = Depth to Water in feet. below TOC

PT = Free Product Thickness in feel

0.75 = Average Free Product Specific Gravity

4.9 Free Product and Groundwater Sampling

Sixteen monitoring wells (MW-9 through MW-20, MW-6D, MW-20D) including

'the two off site wells (CSX-1 and CSX-2) were installed at DPSC to determine the

presence or absence of groundwater contaminants and to define the local

hydrogeologic conditions. In addition, the nine on-site monitoring wells installed in

1991 (MW-1 through MW-7, and MW-1A and MW-2A) were sampled as part of the

Phase I RI.

4.9.1 Free Product Sampling

Prior to groundwater sampling. free product samples were collected from all

applicable existing and new monitoring wells. Free product samples were collected

using a laboratory-cleaned 40-ml VOA vial on a'dedicated length of nylon rope.

Free product samples were collected on March 1 and 2. 1995, from the following

monitoring wells: MW-1A, MW-2, MW-3. MW-4, MW-5, MW-6, MW-7, MW-9, MW11, MW-14, and MW-15.

Free product samples were submitted for quantitative analysis of BTEX

parameters (benzene, toluene, ethyl-benzene, and total xylenes), diesel range

organics, and gasoline range organics. following strict chain-of-custody procedures

as defined in t~e DPSC Project Operations Work Plan. Collection, documentation.

preservation exd shipping of samples also followed the protocols outlined in the )

DPSC Project C'perations Work Plan. Chemical analysis was completed by ACOE

2727FINL001 4-18
MRD-certffied Kemron laboratory in Marietta, Ohio. Table 4-14 presents analytical

results of the free product sampling.

4.9.2 Groundwater Sampling

A minimum of 14 days after development, the wells were purged and

sampled. Wells included in the sampling process included the 16 recently installed

monitoring wells and nine pre-existing wells installed in 1991. Prior to sampling, all

wells were purged a minimum of five times the well casing volume, using the

following purging apparatus: a field decontaminated, 3-inch diameter bailer was

used for all shallow and intermediate 4-inch diameter wells; dedicated disposable

bailers were used for the existing 2-inch diameter wells; and a field decontaminated

4-inch diameter submersible pump was used for the two deep wells (MW-60 and

MW-20D).

Field decontamination procedures for the 3-inch diameter bailers consisted of

the following:

• soap and water wash

• tap-water rinse

• hexane rinse

• 0I-water rinse

• air dry

The submersible pump was decontaminated using the same procedures on the

exterior of the pump, and by flushing 55-gallons of soap/water solution, followed by

55-gallons of tap water. through the pump.

In the event of wells having slow recharge rates, the well was purged dry.

allowed .to recharge to within 10 percent of 'it's pre-purge volume, then purged dry

again. This occurred at monitoring wells; MW-1A, MW-2A, MW-7. MW-9, MW-10.

MW-13. MW-16. MW-17, and MW-eSX1. Before purging. Versar measured the

depth to'water below the top of the well casing using a electronic water level meter.

This measurement, along with the known depth and diameter of the well. was used

to detennine the volume of water that needed to be purged. The water level meter

was decontaminated between each well by washing with hexane and 01 water.

Groundwater samples were collected from March 6 to March 15. 1995, and

were submitted for quantitative analysis of volatile organic compounds. semi-volatile

organic compounds, total and dissolved metals. cyanide, TPH. ORO, and GRO.

following strict chain-of-custody procedures. Collection, documentation.

preservation and shipping of samples followed the protocol outlined in the OPSC

Project Operations Work Plan. Chemical analysis was completed by ACOE MRD.

certified Kemron laboratory in Marietta, Ohio. Analytical results for the groundwater

samples for TPH. GRO, ORO, and BED<; TCl organics; and TAL inorganics are

provided in Tables 4-15, 4-16, and 4-17, respectively.

2727FINLOO1 4-19
Fc!!owing well purging, groundwater samples were obtained from the 2-inch -;

and4-~~' diameter wells using laboratory-cleaned, dedicated, 2-inch diameter PVC --'

bottom··.. ".ng bailers on a dedicated length of rope. Groundwater samples were

collected directly from the dedicated bailers, using a bottom emptying device. For

free-floating product wells, the outside of the bailers were wiped clean to prevent

product from flowing into the sample containers. The volatile organic fraction was

collected first, followed by the remaining sample parameters. Samples for

dissolved metals were poured into a separate plastic water jug for laboratory

filtration. Filtration of the sample consisted of drawing the sample volume through

a 0.45 micron filter, using air pressure.

Preservation of the samples included HCI for volatile organics; HN03 for total

metals; NaOH for cyanide; and H2S04 for total petroleum hydrocarbons. After

collecti(.", all samples were placed on ice in coolers.

Two equipment rinsate blanks were obtained .ctur~roundwater sampling.

The first (EB-1) was collected from the 3-inch diameter purging bailer prior to

purging MW-5, and the second (EB-2) was collected from the 4-inch diameter

submersible pump prior to purging MW-20D. The equipment blanks were prepared

by pouring DI-water over the field-decontaminated bailer and pump, and collecting

the rinsate in sample bottles for analysis.

4.10 Slug Testing

In accordance with the Project Operations Work Plan, rising head slug tests

were performed on the monitoring wells to estimate the hydraulic conductivity of

the formation in the immediate vicinity of the wells. Since the screen in all

monitoring wells except MW-20D and MW-6D extends approximately 5 feet above

.... --tbe..wa~~r table, rising head slug tests were performed on all the wells. All

monitorin'g wells are screened in the unconfined aquifer and are partially.

penetrating. These tests were performed between March 22 and April 7, 1995.

4.1C.~ Theory

The slug test developed by Bouwer and Rice (1989) permits measurement of

saturated hydraulic conductivity (K) of an aquifer with a single well. The method

consists of quickly lowering or raising the water level in a' well or borehole from

equilibrium and measuring its SUbsequent rise or fall, respectively. The method

was designed to measure the K of the aquifer in the vicinity of.the well screen or

open borehole.

The following terms are defined:

DTP:

DTW:

AWL:

. 2727FINL001

Depth to free product (tf applicable)

Depth to Water (Initial)

Depth to Adjusted Water Level.

4-20
IG:

RG:

PT:

TOC:

Infiltration Goal

Recharge Goal

Product Thickness

Top of Casing

L

Infiltration Goal - (Assuming the AWL or DTW is 20 feet) Upon sUbmerging

the slug, if the initial rise in the water column in 4 feet, then IG will be 5% of 4 feet,

or 0.2 feel This means that the slug can be pulled out and the rising head test

started when the AWL or DTW is 20.0-0.2 = 19.8 feet.

Recharge Goal- (Assuming the AWL or DTW is 20 feet) Upon

instantaneous removal of the slug, if the immediate fall in the water column

(drawdown) is 3 feet, then RG will be 5% of 3 feet, or 0.15 feet This means that

the rising head test is deemed to be complete when the AWL or DlW is 20.0 +

0.15 = 20.15 feel

An In-Situ, Inc., Hermit 1OOO-CTM data logger was used in combination with a

20 psi pressure transducer to monitor and record the water level. Eleven of the

monitoring wells tested contained LNAPL Since the pressure transducer reads the

pressure of the fluid column above it, depth to adjusted water levels were

calculated for wells with LNAPL, using the following formula:

AWL = DTW - 0.75*(DTW-DTP)

or

AWL = DTW - 0.75*(PT)

Average Specific Gravity of LNAPL = 0.75

For wells with LNAPL, AWL was used as the reference level for the data

logger. For wells with noLNAPL, initial DTW was used.

IG and RG were utilized in cases of very poorly infiltrating or recharging wells

only. Otherwise. it was considered preferable for the water level to equilibrate to its

original level prior to starting and ending the tests.

4.10.2 Test Procedure

Prior to starting the test, DTW and DTP rtf applicable) were recorded, and

AWL was calculated. Then, the pressure transducer was lowered sufficiently below

the water level to avoid contact with a fully submerged slug. The transducer cable

was taped to the well casing to secure it to one position. AWL or DTW was input

into the data logger as the reference level and set to ready mode. A 3.5-inch

(1.75-inchfor 2-inch wells) diameter solid PVC slug was quickly submerged in the

water, and the data logger was set almost instantaneously (Step 0). Upon

attainment of the IG, the slug was rapidly pUlled out of the water. and the data

logger was reset (Step 1). The data logger was allowed to monitor the water level

. 2727FINL001 4-21
until the RG was achieved. Upon termination of the test, data were downloaded

from the data logger to an IBM-compatible personal computer. Raw data from the

data logger is contained in Appendix L

4.10.3 Data Analysis

Slug test data were analyzed using the Bouwer and Rice method for partially

penetrating wells. Widely accepted and utilized software, AQuifer TEst SOLVer

(AQTESOLV) was used to analyze the data and print the plots.

The raw data show only two columns, time versus change in reference level.

Reference level, DlW or AWL Cif applicable) for a particular well was an input in the

data logger. Data logger data were transformed for input into AQTESOLV by

subtracting the initial DlW or AWL (same as reference level) from the second

column of the data logger data, or change in reference level. The result of this

transformation is two columns of data, time versus change in fluid level. These

data were entered into AQTESOLV.

The following assumptions were made:

In all shallow wells, the thickness of the saturated zone is 25 feet, and in

MW-2QD and MW-6D, it is ~'~Jivalent to the height of the standing water

column in the well.

The water table in wells is under unconfined condition.

All wells are partially penetrating.

Under ideal conditions, a typical slug test plot should exhibit two different

slopes. The initial steep slope is probably indicative of the gravel pack drainage

around the screen. The second, less steep slope is indicative of the K, of the

undisturbed aquifer around the screen. This portion of the data should be used for

analysis. -

In some formations, a third, still less steep slope, is seen that is probably

indicative of the residual drawdown. This mayor may not be exhibited depending

upon the geologic formation.

Raw data from the data logger was transformed into acceptable AQTESOLV

, format and imported in AQTESOLV. Individually applicable values of initial

drawdown (Ho), radius of the screen (rc), radius of the gravel pack or effective well

radius (rw), length of the screen (L), thickness of the saturated zone (b) and initial

water column (H) were entered in AQTESOLV. A straight line fit was visually

matched with the data point interval indicative of estimated K of formation. Different

input parameters and estimated K values are presented on individual plots )

contained in Appsndix L Table 4-18 sh:lwS estimated K 4alues.

2727FINL001 4-22
[

~.

Monitoring well numbers correspond to identification numbers on tJie data

logger raw data O.er. MW-D1 corresponds to identification 01 on data logger raw

data). MW-CSX1, MW-2, MW-7, and MW-9 are not included, either due to

erroneous data logged or extremely slow recharge rates.

2727FINL001 4-23
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TABLE 4-1

ACTIVE SOIL GAS SURVEY ANALYTICAL DATA

(BTEX AND TOTAL VOCs)

(Survey Date: September 26 through October 21, 1994)

SAMPLE ETHYL- TOTAL TOT- TOT1.0. BENZENE TOLUENE BENZENE XYLENES BTEX vee's

(ppm) (ppm) (ppm) (ppm) (ppm) (ppm)

SG.o1 1,035 <0.1 <0.1 90, 1,125 9,465

SG-D2 2,700 245 195 300 3,440 9,095

SG-D3 4,330 580 220 360 5,490 11,865

SG.o4 4,160 605 245 690 5,700 10,315

SG-D5 305 40 65 60 470 1,555

SG-D6 <0.1 0.2 0.2 0.9 1.3 6.0

SG-D7 2,860 315 140 - 105 ' 3,420 15,290 - SG.o8 60 2.0 1.0 1.0 64 280

SG-D9 4,600 1,700 . NR 260 6,560 28,340

SG-10 2,165 380 <0.1 195 2,740 6,030

SG-11 55 <0.1 <0.1 <0.2 55 930

SG-12 100 <0.1 <0.1 1.0 101 882

SG-13 <0.1 <0.1 <0.1 <0.2 NO 9.5

SG-14 1,020 300 30 100 1,450 1,945

SG-15 8,080 1,190 625 730 , 10,625 29,720

. SG~16 2,000 1,110 NR 780 3,890 13,600

SG-17 2,230 1,790 55 560 4,635 29,975

SG-18 8,595 2,730 NR 1,015 12,340 23,325

SG-19 435 320 170 65 990 1,610

SG-20 225 275 30 10 540 865

SG-21 170 500 265 155 1,090 3,015

SG-22 8.0 2.0 1.0 <0.2 11 245

SG-23 20 6.0 4.0 1.0 31 625 .
TABLE 4-1

ACTIVE SOIL GAS SURVEY ANALYTICAL DATA

(BTEX AND TOTAL VOCs)

(Survey Date: September 26 through October 21, 1994)

(continued)

SAMPLE ETHYL- TOTAL TOr- TOT1.0. BENZENE TOLUENE BENZENE XYLENES BTEX voe's

(ppm) (ppm) (ppm) (ppm) (ppm) (ppm)

SG-24 100 30 20 <0.1 150 3,460

SG-25 90 40 10 <0.2 140· 1,865

SG-26 5.0 <0.1 <0.1 <0.2 5.0 50

SG-27 <0.1 <0.1 <0.1 <0.2 NO 6.5

SG-28 30 30 35 <0.2 95 1,080

SG-29 <0.1 <0.1 <0.1 <0.2 NO 10

SG-30 130 35 30 <0.2 195 3,700

SG-31 80 40 20 <0.2 140 3,060 .. SG-32 <0.1 <0.1 <0.1 <0.2 NO 5.5

SG-33 <0.1 <0.1 <0.1 <0.2 NO 5.0

SG-34 <0.1 <0.1 <0.1 <0.2 NO 3;0

SG-35 <0.1 <0.1 <0.1 <0.2 NO 17.5

SG-36 <0.1 <0.1 <0.1 <0.2 NO 3.8

SG-37 <0.1 <0.1 <0.1 <0.2 NO 10.5

SG-38 <0.1 <0.1 <0.1 <0.2 Nt:> . 21.5

,

SG-39 <0.1 <0.1 <0.1 <0.2 NO 13.6

SG-40 <0.1 <0.1 <0.1 <0.2 NO 3.2

SG41 <0.1 <0.1 <0.1 <0.2 NO . 5.0

SG42 <0.1 <0.1 <0.1 <0.2 NO 4.0

S~43 <0.1 <0.1 <0.1 <0.2 NO 2.5

SG44 <0.1 <0.1 <0.1 <0.2 NO 6.4

SG45 <0.1 <0.1 . <0.1 <0.2 NO 4.4

SG46 <0.1 <0.1 <0.1 <0.2 NO 5.6
c

TABLE 4-1

ACTIVE SOIL GAS SURVEY ANALYTICAL DATA

(BTEX AND TOTAL VOCs)

(Survey Date: September 26 through October 21, 1994)

(continued)

SAMPLE ETHYL- TOTAL TOT- TOTJ.D. BENZENE TOLUENE BENZENE XYLENE BTEX voe's

(ppm) (ppm) (ppm) (ppm) (ppm) (ppm)

SG-47 <0.1 <0.1 <0.1 <0.2 NO 4.5

SG-48 <0.1 <0.1 <0.1 <0.2 NO 9.0

SG-49 <0.1 <0.1 <0.1 <0.2 NO 4.6

SG-50 <0.1 <0.1 <0.1 <0.2 NO 3.2

- .....

- SG-51 <0.1 <0.1 <0.1 <0.2 NO 8.7

SG-52 <0.1 <0.1 <0.1 <0.2 NO 10.0

SG-53 <0.1 <0.1 <0.1 <0.2 NO 1.6

SG-54 <0.1 <0.1 <0.1 <0.2 NO 2.8

SG-55 <0.1 <0.1 <0.1 <0.2 NO 4.3

SG-56 <0.1 <0.1 <0.1 <0.2 No 6.4

SG-57 <0:1 <0.1 <0.1 <0.2 NO 5.8

SG·58 <0.1 <0.1 <0.1 <0.2 NO 6.3

, .----SG:59 <0.1 <0.1 <0.1 <0.2 NO 2.6

SG·60 <0.1 <0.1 <0.1 <0.2 NO' 5.7

SG-S1 <0.1 <0.1 <0.1 <0.2 NO 3.8

SG-62 <0.1 <0.1 <0.1 <0.2 NO 3.4

SG-63 <0.1 <0.1 <0.1 <0.2 NO 85

SG-64 <0.1 <0.1 <0.1 <0.2 ' NO 2.6

SG-65 <0.1 <0.1 <0.1 <0.2 NO 2.9 .

SG-S6 DELETED

SG-S7 <0.1 <0.1 <0.1 <0.2 NO 6.0

SG-68 <0.1 <0.1 <0.1 <0.2 NO 5.3

SG-S9 DELETED
(

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c

(

TABLE 4-1

ACTIVE SOIL GAS SURVEY ANALYTICAL DATA

(BTEX AND TOTAL VOCs)

(Survey Date: September 26 through October 21, 1994)

(continued)

SAMPLE ETHYL- TOTAL TOT- TOT1.0. BENZENE TOLUENE BENZENE XYLENES BTEX voe's

(ppm) (ppm) (ppm) (ppm) (ppm) (ppm)

SG-70 2,325 843 " 230 370 3,768 5,790

SG-71 <0.1 <0.1 <0.1 <0.2 NO 7.4

SG-72 <0.1 <0.1 <0.1 <0.2 NO NO

SG-73 <0.1 <0.1 <0.1 <0.2 NO 3.2

SG-74 <0.1 <0.1 <0.1 <0.2 NO 6.4

SG-75 <0.1 <0.1 <0.1 <0.2 NO 5.7

SG-76 <0.1 <0.1 <0.1 <0.2 NO 3.0

SG-77 <0.1 <0.1 <0.1 <0.2 NO 2.6

SG-78 <0.1 <0.1 <0.1 <0.2 NO 3.2

SG-79 <0.1 <0.1 <0.1 <0.2 NO 3.3

SG-80 <0.1 <0.1 <0.1 <0.2 NO 3.9

SG-81 <0.1 <0.1 <0.1 <0.2 NO 3.2

Note: Soli gas sampling interval ranged from 10' to 12'.

NO - .Not Detected
1

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(

r- O _

TABLE 4-2

SCAPS SURVEY DATA SUMMARY

FLUORESCENCE INTENSITY

SAMPLE 1.0. SAMPLE MAXIMUM UF WAVELENGTH DEPTH TOTAl DEPTH

NUMBER LOCATION AMPUTUDE AT PEAK (NM) INTERVAL SAMPLED

(COUNTS) (FEET) (FEET)

2FSG72 SG72 None None NA 27.68

5FSGMW3 MW3 None None NA 6.56

12FSGMW6 MW6 None None NA 11.10

15FSGMW6 MW6 None None NA 10.47

17FSGMW6 MW6 None None NA 10.00

9FSGMW3 MW3 None None NA 17.85

7FSGMW3 MW3 None None NA 10.25

21 FSG6 SG6 1878.8 410.4 23-25 27.96

24FSG82 SG82 None None NA 16.20

25FSG82 SG82 None None NA 16.12

36FSG9 SG9 2887.5 403.0 17-19 20.17

31 FSG42 SG42 2220.9 395.5 23-25 26.08

41 FSG35 SG35 None None NA 24.79

47FSG70 SG70 .14580.9 407.3 17-22 23.43

49FSG68 SG68 8217.5 426.4 17-21 22.34

45FSG12 SG12 8824.6 404.1 19-22 23.37

51 FSG65 SG65 . None None NA 16.96

55FSG31 SG31 None None NA 21.97

53FSG38 SG38 938.6 401.9 2-3 23.38

Key: UF stands for laser induced fluorescence .

None indicates no measureable readings

NA indicates not applicable

MW indicates monitoring well sampling location

SG indicates son gas sampling location
r-...,

! '

TABLE 4-3

DATA SUMMARY: SAMPLE DEPTHS AND ANALYTICAL RESULTS FOR

HYDROPUNCH SAMPLES (GRO, ORO, AND BTEX)

SOIL GAS SAMPLE SAMPLE PARAMETERS

SAMPLE REFERENCE DEPTH

NO. NO. (bgs) GRO ORO ETHYL 

(ppb) . (ppb) BENZENE BENZENE TO

(ppb) (ppb) 

HP-1 SG-72 16'· 19' <100 <500 6 <5 

HP-2 SG-6 . 23'- 26' 340,000,000 NA 2,900,000 230,000 J 1,4

HP-3 SG-42 22'- 25' 1,600 4,500 <5 <5 

HP-4 SG-82 18'- 21' 1,100 3,600 <5 <5 

HP-5 SG-13 18'- 21' 3,700 100,000 <5 <5 

HP-6 SG-32 18'- 21' <100 NA <5 <5 

HP·7 SG-63 20'· 23' <100 2,400 <5 <5 

HP-8 SG-52 20'· 23' <100 580 <5 <5 

EB-1 --.-- -_... <100 <500 <5 <5 

EB-2 ---- ---- <100 <515 <5 <5 

NA Not Analyzed
TABLE 4-4

SOIL GAS, SCAPS, HYDROPUNCH, AND MONITORING WELL

LOCATION CROSS REFERENCE

SOIL GAS SCAPS HYDROPUNCH MONITORING

NO. NO. CPT/RESIS. UF NO. ."- WELL NO.

SG-6 21 FSG6 CPT (0-28') UF (0-26') HP-2 MW-9

SG-9 36FSG9 RESIS (0-17') UF (0-19') - MW-14

SG-12 45FSG12 . RESIS (0-19') UF (0-22') - - SG~13 - - - HP-5 - SG-17 - - - - MW-15

SG-21 - - - - MW-1A

SG-24 - - - - MW-16

SG-31 55FSG31 - UF (0-18') - - SG-32 - - - HP-6 -

SG-34 - - - - MW-17

SG-35 41 FSG35 RESIS (0-22') UF (0-24') - - SG-38 . 53FSG38 - UF (0-24') - -

SG-42 31 FSG42 RESIS (0-25') UF (0-25') HP-3 MW-19

SG-52 - - - HP-8 - SG-63 - - - HP-7 MW-20/20D

SG-65 51 FSG65 - UF (0-16') - - SG-68 49FSG68 - UF (0-22') - MW-12

SG-70 47FSG70 - - - - SG-71 - - - - MW-ll

SG-72 2FSG72 . CPT (0-28') UF (0-25') HP-l MW-l0

SG-80 - - - - MW-18

SG-82 24FSG82 CPT (0-16') UF (0-14') HP-4 - 25FSG82

5FSGMW3 CPT (5'-6') UF (0-4')

- 7FSGMW3 CPT (14'-18') - - MW-3

9FSGMW3 UF (0-16')

12FSGMW6

- 15FSGMW6 CPT (5'-11') UF (0-9') - MW-6

17FSGMW6

CPT: CONE PENETROMETER SURVEY

RESIS: RESISTIVITY SURVEY

UF: LASER INDUCED FLUORESCENCE SURVEY

- . SURVEY NOT PERFORMED
TABLE 4-5 i

MONITORING WELL CONSTRUCTION

DATA SUMMARY

WELL GRADE TOC DIAMETER DEPTH OF DEPTH OF SCREEN SCREEN GROUT 

IDENTIFICATION ELEVATION ELEVATION OF BORE THE BORE THE WELL LENGTH INTERVAL INTERVAL 

(FT.) (FT.) ONCH) (FT.) (FT.) (FT.) (FT.) (FT.) 

MW-6D 21.64 21.45 10 77 74 10 64 -74 0·48 

MW-09 20.39 20.08 8.25 37 33 20 13 -33 0-3 

MW·10 16.92 16.58 8.25 31.5 28.5 15 13.5 - 28.5 0- 3.5 

MW·11 20.55 20.21 8.25 35 32 15 17 ·32 0-7 

MW·12 19.72 19.54 8.25 32 29 15 14 ·29 0·4 

MW-13 20.62 20.38 8.25 33 30 15 15 ·30 0-5 

MW·14 20.67 20.27 8.25 35 32 15 17 ·32 0·7 MW·15 20.58 22.58 8.25 34 31 15 16 -31 0-6 

MW·16 20.69 20.38 8.25 34 31

,

15 16 ·31 0·6 

MW·17 20.49 22.25 8.25 32 29 15 14 ·29 0-4 MW·18 18.31

.

17.93 8.25 32 28.7 18 10.7·28.7 O· 2.5 

MW·19 21.21 23.12 8.25- 31 28 15 13 ·28 0-3 

MW·20 26.08 25.68 8.25 34 31 15 16 - 31 0-8 

MW·20D 28.10 25.08 12 92 81 . 15 68 ·81 O· 50 

MW·CSX1 51.17 51.32 8.25 52 50 10 40·50 0- 32 

MW-CSX2 46.96 46.70 8.25 60 57 15 42.5 ·57.5 0-34 

• MW·20D has a 8.25 Inch dIameter steel surface casing grouted down to 63 feet and Into the existing clay member. Also, there Is an outsIde 14 Inch 

MW·20D and MW-6D are drilled by mud rotary method.

• All depth measurements are taken from ground surface. ·It should be noted that measurements may dIffer mInutely on successive tables whIch are 

All elevatIons are referenced to National GeodetIc VertIcal Datum (NGVO).

• MW·15. MW·17 and MW·19 are stlck·up wells with protective casIngs.
,

TABLE 4-6

MONITORING WELL DEVELOPMENT DATA SUMMARY

CASING VOLUME OF TOTAL 

WELL WELL WELL/BORE DEPTH TO FLUID F=LUID SCREEN FLUID VOLUME 

IDENTIFICATION DEPTH DIAMETER FLUID COLUMN VOLUME LENGTH ADDED PURGED 

(FT.) (INCH) (FT.) (FT.) (GAL.) (FT.) (GAl.) (GAL.) 

MW-6D 74 4/10.00 20.60 53.40 34.70 10 200 440 

MW·9 33 4/8.25 18.60 13.86 9.00 20 0 55 

MW-10 28.5 4/8.25 13.56 14.94 9.50 15 75 165 

MW·11 32 4/8.25 18.96 13.04 8.50 15 50. 165 

MW·12 29 4/8.25 17.94 11.06 7.20 15 50 330 

MW-13 30 4/8.25 18.69 11.31 7.50 15 50 110 

MW·14 '32 4/8.25 19.15 12.85 8.50 15 50 100 

MW·15 31 4/8.25 21.62· 9.38 6.00 15 50 165 

MW·16 31 4/8,25 18.90 12.10 7.85 15 25 65 MW·17 29 4/8.25 20.00 9.00 5.85 15 0 55 

MW-18 28.7 4/8.25 15.60 13.10 8.50 18 50 245 

MW-19 28 4/8.25 18.72 9.28 6.00 15 50 330 

MW·20 31 4/8.25 20.47 10.53 7.00 15 50 85 

MW·20D 81 4/10.00 20.75 60.25 39.50 15 200 660 

MW-CSX1 50 4/8.25 37.70 12.30 8.00 10 50 35 

MW-CSX2 57 4/8.25 46.40 11.10 7.20 15 0 85 
(

TABLE 4-7

MONITORING'WELL PID READINGS (PPM ABOVE BACKGROUND)

(continued)

HOLE tJroN·17 tJroN·18 tJroN-19 tJroN·2O tJroN-6D MW-6D tJroN-2OD CSX-1 CSX-2

DEPTH (32') (321 (311 (34') (0'-60') (60'-881 (92') (541 (60')

(BGS)

0'·2' 0 0 0 0 0 10 NS 0 0

2' -4' 0 0 0 1 0 25 NS 0 0

4' ·6' 0 0 NS 0.2 0 5 NS 0 0

6' ·8' 0 NS 3 0.2 0 12 NS 0 0

8' ·10' 0 1 4 0.1 0 5 NS 0 0

10'·12' 0 0 4 0.9 15 5 NS 0 0

12'· 14' 0 0 2 1.4 50 3 NS 0 0

14'·16' 0 1 3.5 0.8 30 NS NS 0 0

16'·18' 0 1 5 0.2 25 50 NS 0 0

18'·20' 0 1.5 2.5 5 90 50 NS 0 0

20' ·22' 0 1.2 1.8 2 250 50 NS 0 0

22' - 24' 0 1.6 50 1.2 300 50 NS 0 0

24'·26' 0 1.4 80 2.6 175 50 NS 0 0

26' - 28' 0 1.6 150 1 400 35 NS 0 0

28' - 30' 0 1.8 NS 40 150 NS NS 0 10

30'·32' NS NS NS 25 NS NS 0.6 NS 1

32' - 34' NS NS NS NS NS NS 0.4 0 0.5

34'·36 NS NS NS NS 3 NS 1 0 0

36'·38 NS NS NS NS 18 NS 1.2 0 1

38'·40' NS NS NS NS 35 NS 0 0 4

40'·42' NS NS NS NS 25 NS 0 0 25

42' -44' NS NS NS NS NS NS 0 0 ~O

44' - 46' NS NS NS NS 20 NS 0 25 350 -- 46'·48' NS NS NS NS 70 NS 0 50 400

48'· SO' NS NS NS NS 30 NS 0 30 80

50'·52' NS NS NS NS SO NS 0 60 100

52'· 54' NS NS NS NS 20 NS 0 30 150

54'·56' NS NS NS NS 7 NS 0 30 200

56' - 58' NS NS NS NS 17 NS 0 NS NS

58'·60' NS NS NS NS 20 NS 0* NS NS

~on:: ~ncentratlons reportee are tolal vOlatile organic vapors In SOli as measurea uSIng an HNU pnotolomZatlOn aeteetor

upon opening the split-spoon sampler.

* Remaining PIC vapor readings for monitoring well tJroN-2OC were 0 ppm above backgrour.d for intervals from 50' to

92' below ground surface.

NS • Not Sampled
TABLE 4-7

MONITORING WELL PID READINGS (PPM ABOVE BACKGROUND)

HOLE DEPTH MW·9 MW·10 MW·11 MW·12 MW·13 MW·14 MW·15 MW·16

(BGS) (37') (31.51 (351 (321 (331 (351 (341 (341

0' ·2' 0 0 0 0 2 0 1 0

2'·4' 0 0.6 0 0 2 2.5 0 0

4'·6' 0 0.6 1.8 0.8 0.4 2.0 0 NS

6' ·8' 0 0.4 0 0.8 O. 0.4 7 0

8' ·10' 0 0.4 NS 2 0 9 90 0

10'·12' 0 0.4 0 2.4 0 NS 65 0

12'·14' 0 NS 0.6 5 0 100 NS 2.8

14'·16' 0 NS 0 10 0 15 45 20

16' - 18' 0 NS 300 190 0 50 250 20

18' -20' 0 0.2 200 150 -O""""""~ - 1-300 300 4

20'·22' 0 0.2 300 325 15 300 250 0

22' ·24' 1.4 NS 200 200 1SO 400 350 0

24'·26' 7,200 0.2 200 200 1SO 1SO 300 0.5

26'·28' 7,200 1 300 300 1SO 400 250 0.5

28'·30' 160 10 300 200 400 200 0

30' - 32' 1SO NS 300 NS 200 300 200 NS

32'·34' 170 NS NS NS NS NS NS NS

34'·36 NS NS NS NS NS NS NS NS

36'·38 NS NS NS NS NS NS NS NS

38'·40' NS NS NS NS NS NS NS NS

. 40'·42' NS NS NS NS NS NS NS NS -~'."" -

42'·44' NS NS NS NS NS NS NS. NS

44'·46' NS NS NS NS NS NS NS NS

46'·48' NS NS NS NS NS NS NS . NS

48'· SO' NS NS NS NS NS NS NS NS

SO'· 52' NS NS NS NS NS NS NS NS

52'·54' NS NS NS NS NS NS NS NS

·54' ·56' NS NS NS NS NS NS NS NS

56'·58' NS NS NS NS NS NS NS NS

58'·60' NS NS NS NS NS NS NS NS

60'·62' NS NS NS NS NS NS NS NS
c

TABLE 4-8

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

SOIL SAMPLES (TPH, GRO, ORO, AND BTEX)

SAMPLE SAMPLE PARAMETERS

WELL DEPTH

NO. (bgs) ETHYL TOTAL.

TPH GRO ORO BENZENE TOLUENE BENZENE XYLENES

(ppm) (Ppb) (Ppb) (Ppb) (Ppb) (Ppb) (Ppb)

wrN.!J 20'· 22' 88 310 28,000 60 <7.7 <7.7 <7.7

wrN.!J 22'· 24' 110 1,500 16,000 100 Z1 68 490

wrN·10 6'·8' <30 <120 23,000 <6.0 <6.0 <6.0 <6.0

wrN·10 10'·12' <33 <130 1,300,000 <6.6 <6.6 <6.6 <6.6

wrN·11 18'· 20' 13,000 5,400,000 7,600,000 <6,800 <6,800 58,000 210,000

wrN-11 20'·22' 16,000 6,100,000 7,300,000 <6,600 <6,600 62,000 190,000

wrN-12 16'· 18' 1,900 100.000 1,500,000 B <680 <680 <680 <680

wrN·12 18'· 20' 3.600 370,000 2,800,000 B <670 <670 <670 <670

wrN·13 16'· 18' <28 <110 <11,000 <5.6 <5.6 <5.6 <5.6

wrN·13 18'· 20' <28 <110 <11,000 <5.6 <5.6 <5.6 <5.6

wrN·14 18'· 20' 1.500 2,400,000 1,300,000 <5.5 <5.5 6,300 29.000

wrN·14 20'·22' 19,000 16,000,000 9,700,000 26,000 17,000 120.000 690,000

wrN-15 14'· 16' NA <120 <12,000 <6.1 <6.1 <6.1 <6.1

wrN-15 20'·22' 7,300 6,000,000 10,000,000 <7,200 <7,200 76,000 220,000

wrN·16 14'· 16' <Z1 <110 <11,000 <5.4 <5.4 <5.4 <5.4

wrN·16 20'· 22' <28 <110 <11,000 <5.6 <5.6 <5.6 <5.6

wrN·17 16'· 18' <30 <120 <12.000 . <6.0 <6.0 <6.0 <6.0

wrN·17 18'· 20' <25 <120 10,000 <5.1 <5.1 <5.l <5.1

wrN·18 14'· 16' <30 <120 <12,000 <6.1 <6.1 <6.1 <6.1

wrN·19 8'·10' <30 <120 <12,000 <6.1 <6.1 <6.1 <6.1

wrN·19 18'· 20' 300 <120 <12,000 <6.0 <6.0 <6.0 <6.0

wrN·2O 4'·6' 130 180 12,000 9.4 <5.9 <5.9 <5.9

wrN·2O 20'·22' 850 <110 24,000 <5.7 <5.7 <5.7 <5.7

wrN-60 18'· 20' 110 13,000 71,000 B <6.0 <6.0 <6.0 30

wrN-60 20'· 22' 2,700 3,400,000 2,400,000 B <29 12.000 24,000 150,000

CSX·1 46'· 48' <28 <110 <11,000 <5.6 <5.6 <5.6 <5.6

CSX·1 48'· 50' <28 <110 <11,000 <5.6 <5.6 <5.6 <5.6

CSX-2 44'· 46' 620 230,000 210,000 <Z1 <Z1 <Z1 <27

CSX-2 46'· 48' 460 180,000 150,000 <28 <28 <28 37
(

(

TABLE 4-9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

- - SAMPLES (TCL ORGANIC COMPOUNDS)

MW-9 MW-9 MW-10 MW-10 MW-11 MW-11

PARAMETER (S-7) (S-8) (S-5) (S-6) (S-11) (S-12)

20'- 22' 22'- 24' 6'- 8' 10'- 12' 18'- 20' 20'- 22'

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Methylene chloride 290 480 920 200 <6,800 <6,600

Acetone <15 520 130 130 <14,000 <13,000

Chlorofonn -<7.7 <6.7 <6.0 <6.6 <6,800 <6,600

2-Butanone <15 <13 <12 <13 <14,000 <.13,000

Benzene 60 100 <6.0 <6.6 <6,800 <6,600

Toluene <7.7 27 <6.0 <6.6 <6,800 <6,600

Ethyl benzene <7.7 68 <6.0 <6.6 58,000 62,000

Xylenes (Total) <7.7 490 <6.0 <6.6 210,000 190,000

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Naphthalene <250 <210 <190 840 14,000 24,000

2-Methylnaphthalene <250 <210 <190 -540 20,000 29,000

Acenaphthylene <250 <210 <190 250 <360 <350

Acenaphthene <250 <210 <190 2,200 <360 <350

Dibenzofuran <250 <210 <190 1,600 <360 <350

Ruorene <250 <210 <190 2,100 <360 <350

Phenanthrene <250 <210 490 28,000 2,100 3,200

Anthracene <250 <210 <190 4,900 <360 <350

Di-n-butylphthalate <250 <210 <190 1,100 <360 <350

Ruoranthene <250 <210 710 37,000 <360 <350

Pyrene <250 <210 730 <210 580 860

Benzo(a)anthracene <250 . <210 330 13,000 <360 <350

Chrysene <250 <210 390 12,000 <360 <350

bis(2-Ethylhexyl)phthalate <250 <210 . <190 <210 <360 790

Di-n-oetylphthalate <250 <210 <190 <210 <360 610

Benzo(b)fluoranthene <250 <210 310 13,000 <360 <350

Benzo(k)f1uoranthene <250 <210 310 8,800 <360 <350
c

TABLE 4-9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TCL ORGANIC COMPOUNDS)

(continued)

MW-9 MW-9 MW-10 MW-10 MW-11 MW-11

PARAMETER (S-7) (S-8) (S-5) (S-6) (S-11) (S-12)

20'- 22' 22'_ 24' 6'_ 8' 10'- 12' 18'_ 20' 20'- 22'

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Benzo(a)pyrene <250 350 290 11,000 <360' <350

Indeno(1,2,3-cd)pyrene <250 <210 <190 7,000 <360 <350

Dibenzo(a,h)anthracene <250 <210 <190 1,100 <360 <350

Benzo(g,h,Qperyiene <250 <210 <190 7,000 <360 <350

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

4,4'-DDT <5.1 7.9 <3.9 <4.3 <7.3 <7.0 .

delta-BHC <2.5 <2.1 <1.9 <2.1 <3.6 <3.5

Endrin <5.1 <4.4 <3.9 <4.3 <7.3 <7.0
c

(

TABLE 4-9

'. DATA SUMMARY:, ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

MW·12 MW·12 MW·13 MW-13 MW-14 MW·14

PARAMETER (S-19) (S-20) (S·13) (S-14) (S-9) (S-10)

16'- 18' 18'- 20' 16'· 18' 18'- 20' 18'- 20' 20'· 22'

VOLATILE ORGANIC COMPOUNDS·ANALYTICAL RESULTS (ppb)

Methylene chloride <680 <670 39 17 <5.5 <700

Acetone 10,000 7,400 14 90 <11 <1,400

Chloroform <680 <670 <5.6 <5.6 <5.5 <700

2-Butanone <1,400 <1,400 <11 <11 <11 <1,400

Benzene <680 <670 <5.6 <5.6 <5.5 26,000

Toluene <680 <670 <5.6 - <5.6 <5.5 17,000

,-

Ethyl benzene <680 <670 <5.6 <5.6 6,300 120,000

Xylenes (Total) <680 <670 <5.6 <5.6 29,000 690,000

SEMI·VOLATILE ORGANIC COMPOUNDS·ANALYTICAL RESULTS (ppb)

Naphthalene 5,900 12,000 <180 <180 3,600 4,400

2-Methylnaphthalene 15,000 22,000 <180 <180 4,400 51,000

AcenaphthYJene <180 <170 <180 <180 <180 <1,800

Acenaphthene <180 <170 <180 <180 . <180 '<1,800

Dibenzofuran <180 <170 <180 <180 <180 <1,800

Auorene 590 790 <'180 <180 <180 <1,800

Phenanthrene 470 740 <180 <180 440 2,900

Anthracene <180 <170 <180 <180 <180 <1,800

Di-n-butylphthalate <180 <170 <180 <180 230 6,600

Fluciranthene 290 380 <180 <180 <180 <1,800

Pyrene <180 300 <180 <180 <180, <1,800

Benzo(a)anthracene <180 <170 <180 <180 <180 <1,800

bis(2-Ethylhexyl)phthalate <180 <170 <180 430 <180 <1,800

Di-n-octylphthalate <180 <170 <180 <180 <180 <1,800

Benzo(b)f1uoranthene <180 <170 <180 <180 <180 <1,800

Benzo(k)f1uoranthene <180 <170 <180 <180 <180 <1,800
TABLE 4·9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

MW-12 MW-12 MW-13 . MW-13 MW-14 MW-14

PARAMETER (5-19) (5-20) (5-13) (5-14) (5-9) (5-10)

16'- 18' 18'· 20' 16'· 18' 18'· 20' 18'· 20' 20'· 22'

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Benzo(a)pyrene <180 <170 <180 <180 <180 <1,800

Indeno(1,2,3-cd)pyrene <180 <170 <180 <180 <180 <1,800

Dlbenzo(a,h)anthracene <180 <170 <180 <180 <180 <1,800

Benzo(g,h,l)peryiene <180 <170 <180 <180 <180 <1,800

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

4,4'-DDT <3.6 <3.6 <3.7 <3.7 <3.6 <3.7

delta-SHC <1.8 <1.7 <1.8 <1.8 <1.8 <1.8

Endrin <3.6 <3.6 <3.7 <3.7 <3.6 <3.7
(

(

TABLE 4·9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOil

SAMPLES (Tel ORGANIC COMPOUNDS)

(continued)

MW-15 MW·15 MW-16 MW-16 MW-17 MW-17

PARAMETER (S-17) (S-18) (S-15) (S-16) (S-21) (S-22)

14'- 16' 20'· 22' 14'- 16' 20'- 22' ·16'- 18' 18'- 20'

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Methylene chloride 7.3 <7,200 89 130. <6.0 <5.1

Acetone 110 . <15.000 55 170 <12 33

Chloroform <6.1 <7,200 <5.4 <5.6 <6.0 <5.1

2-Butanone <12 <15,000 <11 <11 <12 <10

Benzene <6.1 <7,200 <5.4 <5.6 <6.0 <5.1

Toluene <6.1 <7,200 <5.4 <5.6 <6.0 <5.1

Ethyl benzene <6.1 76.000 <5.4 <5.6 <6.0 <5.1

Xylenes (Total) <6.1 220,000 <5.4 <5.6 <6.0 <5.1

SEMI-VOLATILE ORGANIC COMPOUNDS·ANALYTICAL RESULTS (ppb)

Naphthalene <200 51,000 <170 <180 <190 <160

2-Methylnaphthalene <200 48,000 <170 <180 <190 <160

Acenaphthylene <200 <400 <170 <180 <190 <160

Acenaphthene <200 <400 <170 <180 <190 <160 - ............ - .

Dibenzofuran <200 570 <170 <180 <190 <160

Auorene <200 840 <170 <180 <190 <160

Phenanthrene <200 1,300 <170 <:180 <190 <160

Anthracene <200 <400 <170 <180 <190 <160

.Di-n-butylphthalate <200 <400· <170 <180 <190 <160

Auoranthene <200 <400 <170 <180 <190 <160

Pyrene <200 <400 <170 <180 <190 <160

Benzo(a)anthracene <200 <400 <170 <180 <190 <160

Chrysene <200 <400 <170 <180 <190 <160

bis(2-Ethylhexyf)phthalate <200 790 <170 <180 490 <160

Di-n-oetylphthalate <200 <400 <170 <180 <190 <160

Benzo(b)ftuoranthene <200 <400 <170 <180 <190 <160
(

TABLE 4·9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TClORGANIC.COMPOUNDS)

(continued)

MW-15 MW-15 MW-16 MW-16 MW-17 MW-17

PARAMETER (S-17) (S-18) (S-15) (S-16) (S-21) (S-22)

14'· 16' 20'· 22' 14'· 16' 20'· 22' 16'· 18' 18'- 20'

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Benzo(k)f1uoranthene <200 <400 <170 <180 <190 <160

Benzo(a)pyrene <200 <400 <170 <180 <190 <160

Indeno(1,2,3-cd)pyrene <200 <400 <170 <180 <190 <160

Dibenzo(a,h)anthracene <200 <400 <170 <180 <190 <160

Benzo(g,h,l)perylene <200 <400 <170 <180 <190 <160

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

4,4'-DDT <4.0 <3.8 <3.6 <3.7 <3.9 <3.3

delta-BHC <2.0 8.1 <1.7 <1.8 <1.9 <1.6

Endrin <4.0 8.1 <3.6 <3.7 <3.9 <3.3
l

c

TABLE 4-9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOil

SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

MW-18 MW-19 MW-19 MW-20 MW-20 MW-6D

PARAMETER (S-23) (S-1) (S-2) (S-3) (S-4) (S-25)

14'- 16' 8'-10' 18'- 20' 4'- 6' 20'- 22' 18'- 20'

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb) ,

Methylene chloride <6.1 7.3 <6.0 550 13 <6.0

Acetone 30 <12 <12 220 <11 110

Chloroform <6.1 <6.1 <6.0 <5.9 <5.7 <6.0

2-Butanone <12 <12 <12 <12 <11 21

Benzene <6.1 <6.1 <6.0 9.4 <5.7 <6.0

Toluene <6.1 <6.1 <6.0 <5.9 <5.7 <6.0

.Ethyl benzene <6.1 <6.1 <6.0 <5.9 <5.7 <6.0

Xylenes (Total) <6.1 <6.1 <6.0 <5.9 <5.7 30

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Naphthalene <200 <200 <190 <190 <180 <190

2-Methylnaphthalene <200 <200 <190 <190 <180 <190

Acenaphthylene <200 <200 <190 <190 <180 <190

Acenaphthene <200 <200 <190 <190 <180 <190

Dibenzofuran ·<200 <200 <190 <190 <180 <190

Auorene <200 <200 <190 <190 <180 <1~

Phenanthrene <200 <200 <190 <190 <180 <190

Anthracene <200 <200 <190 <190 <180 <190

Di-n-butylphthalate <200 <200 <190 <190 <180 <190

Auoranthene <200 <200 <190 270 <180 <190

Pyrene <200 <200 <190 240 <180 <190

Benzo(a)anthracene <200 <200 <190 <190 <180 <190

Chrysene <200 <200 <190 <190 <180 <190

bis(2-Ethylhexyl)phthalate <200 <200 <190 <190 360 600

Di-n-octylphthalate <200 <200 <190 <190 <180 <190

Benzo(b)f1uoranthene <200 <200 <190 <190 <180 <190
( TABLE 4-9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

MW-18 MW-19 MW-19 MW-20 MW-20 MW-6D

PARAMETER (8-23) (8-1) (8-2) (8-3) (8-4) (8-25)

14'- 16' 8'-10' 18'- 20' 4'- 6' 20'- 22' 18'- 20'

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Benzo(k)f1uoranthene <200 <200 <190 <190 <180 <190

Benzo(a)pyrene <200 <200 ·<190 <190 <180 <190

Indeno(1,2,3-ed)pyrene <200 <200 <190 <190 <180 <190

Dibenzo(a,h)anthracene <200 <200 <190 <190 <180 <190

Benzo(g,h,Qperyiene <200 <200 <190 . <190 <180 <190

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

4,4'-DDT <4.0 <4.0 <3.9 <3.9 <3.8 <3.9

delta-BHC <2.0 <2.0 <1.9 <1.9 <1.8 <1.9

Endrin <4.0 <4.0 <3.9 <3.9 <3.8 <3.9
c

TABLE 4-9

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

MW-6D CSX-1 CSX-1 CSX-2 CSX-2 ...--

PARAMETER (S-26) (S-29) (S-30) (S-27) (S-28)

20'- 22' 46'- 48' 48'- 50' 44'- 46' 46'- 48'

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb) .

Methylene chloride <29 <5.6 ·<5.6 <27 <28

Acetone 51 220 200 130 160

Chloroform <29 <5.6 <5.6 <27 <28

2-Butanone <59 20 <11 <55 <56

Benzene <29 <5.6 <5.6 <27 <28

Toluene 12,000 <5.6 <5.6 <27 <28

Ethyl benzene 24,000 <5.6 <5.6 <27 <28

Xylenes (Tota!) 150,000 <5.6 <5.6 <27 37

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Naphthalene 9,500 <180 <180 660 790

2-Methylnaphthalene 2,800 <180 <180 420 360

Acenaphthylene <190 <180 <180 <180 <180

Acenaphthene <190 <180 <180 <180 <180

Dibenzofuran <190 <180 <180 <180 <180

Auorene <190 <180 <180 <180 <180

Phenanthrene 220 <180 <180 <180 <180

Anthracene <190 <180 <180 <180 <180

Di-n-butylphthalate <190 <180 <180 <180 330

Auoranthene <190 <180 <180 <180 <180

Pyrene <.190 <180 <180 <180 <180

Benzo(a)anthracene <190 <180 <180 <180 <180

Chrysene <190 <180 <180 <180 <180

bis(2-Ethylhexyl)phthalate 240 <180 <180 <180 <180

Di-n-oetylphthalate <190 <180 <180 <180 <180

Benzo(b)fluoranthene <190 <180 <180 <180 <180
(

\

(

TABLE 4-9

DATA SUMMARY:, ANALYTICAL RESULTS FOR DPSC SOil

SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

MW-6D CSX·1 CSX·1 CSX-2 CSX·2

PARAMETER (S-26) (S-29) (S-30) (S-27) (S-28)

20'- 22' 46'- 48' 48'· 50' 44'· 46' 46'- 48'

SEMI·VOLATILE ORGANIC COMPOUNDS·ANALYTICAL RESULTS (ppb)

Benzo(k)fluoranthene <190 <180 ' <180 <180 <180

Benzo(a)pyrene <190 <180 <180 <180 <:180

Indeno(1 ,2,3~cd)pyrene <190 <180 <180 <180 <180

Dibenzo(a,h)anthracene <190 <180 <180 <180 <180

Benzo(g,h,Qperylene <190 <180 <180 <180 <180

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

- .. 4,4'·DDT <3.9 <3.7 <3.7 <3.6 . <3.7

delta-BHC <1.9 <1.8 <1.8 <1.8 <1.8

Endri" . <3.9 <3.7 <3.7 . <3.6 <3.7
,.

(

\.

l-.

TABLE 4-10

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TAL INORGANIC COMPOUNDS)

INORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppm)

MW-9 MW-9 MW-10 MW-10 MW-11 MW-11

PARAMETER (S-7) (S-8) (S-5) (S-o) (S-11) (S-12)

(TOTAL) 20'- 22' 22'- 24' 6'- 8' 10'- 12' 18'- 20' 20'- 22'

Cyanide <0.77 <0.67 <0.60 <0.66 <0.55 0.64

Aluminum 20;000 15,000 2,700 7,600 4,700 4,600

Antimony 1,500 910 700 1,100 <11 <11

Arsenic 2.2 1.6 14 11 1.5 1.7

Barium 150 130 200 430 13 15

Beryllium <3.8 <3.3 <3.0 <3.3 <0.55 <0.53

cadmium <3.8 <3.3 <3.0 <3.3 <0.55 <0.53

Calcium 2.200 1,300 35,000 14,000 250 240

Chromium 38 28 . . 15 13 14 12

Cobalt 11 6.7 21 7.9 3.3 3.2

Copper 12 8.0 610 100 8.8 8.5

Iron 22,000 16,000 29,000 11,000 5,400 5,500

Lead 71 12 600 .1,200 5.7 5.0

Magnesium 4,300 3,500 3,500 4,200 1,300 1,200

Manganese 290 190 250' 240 29. 41

Mercury <0.38 <0.33 1.3 1.1 <0.27 <0.27

Nickel <15.0 20 150 9.2 11 9.6

Potassium 1,300 910 500 1,100 250 290

Selenium <0.31 <0.27 0.36 0.39 <0.22 <0.21

Sodium 290 240 430 500 52 63 .

Thallium <0.38 <0.33 <0.30 0.39 <0.27 <0.27

Vanadium 42 33 13 25 7.4 8.7

Zinc 58 45 210 220 26 24
,r--

(

TABLE 4-10

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

INORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppm)

MW-12 MW-12 MW-13 MW-13 MW-14 MW-14

PARAMETER (S-19) (8-20) (S-13) (8-14) (8-9) (8-10)

(TOTAL) 16'- 18' 18'- 20' 16'- 18' 18'- 20' 18'- 20' 20'- 22'

Cyanide <0.55 <0.54 <0.56 <0.56 <0.55 <0.56

Aluminum 6,900 3,500 3,000 6,400 7,000 7,500

Antimony <11 <11 <11 <11 1,400 1,200

Arsenic 0.77 0.98 2.1 ~2.2 . 1.1 1.8

Barium 30 15 19 22 25 38

Beryllium 0.55 <0.54 7.0 5.8 <2.7 <2.8

Cadmium <0.55 <0.54 <0.56 <0.56 <2.7 <2.8

Calcium 750 220 630 790 510 390

Chromium 18 8.7 14 17 15 15

Cobalt 8.8 4.3 5.8 8.1 8.8 12

Copper NA NA 4.4 13 11 13

Iron 15,000 6,800 32,000 25,000 22,000 13,000

--"lead' 4.0 3.8 2.6 1.9 4.9 4.5

Magnesium 1,300 650 630 2,100 2,200 1,700

Manganese 190 41 470 610 300 . 300

Mercury <0.27 <0.27 <0.28 <0.28 <0.27 <0.28

Nickel 11 5.4 7.8 13 <11 12

Potassium 570 200 160 440 730 790

Selenium <0.22 <0.22 <0.22 <0.22 <0.22 <0.22

Sodium 56 59 120 120 130 120

Thallium <0.27 <0.27 <0.28 <0.28 <0.27 <0.28

Vanadium 25 11 6.6 17 21 17

Zinc 30 15 20 36 31 35
,~.- ....

TABLE 4·10

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

INORGANIC COMPOUNDS-ANALY11CAL RESULTS (ppm)

MW-15 MW-15 MW-16 MW-16 MW-17 MW-17

PARAMETER (S-17) (5-18) (S-15) (S-16) (S-21) (S-22)

(TOTAL) 14'· 16' 20'· 22' 14'- 16' 20'- 22' 16'· 18' 18'· 20'

Cyanide <0.61 <0.58 <0.54 <0.56 <0.60 <0.51

Aluminum 15,000 5,100 6,600 5,200 7,900 3,700

Antimony <12 <12 <11 <11 <12 <10

Arsenic 2.9 9.1 2.1 1.1 0.95 1.1

Barium 50 21 17 15 26 16

Beryllium 0.98 <0.58 <0.54 <0.56 <0.60 <0.51

Cadmium <0.61 <0.58 <0.54 <0.56 <0.60 <0.51

Calcium 820 270 230 270 580 230

Chromium 17 24 22 12 24 17

. Cobalt 8.5 8.1 11 6.7 11 8.1

Copper 20' 8.1 9.8 6.7 13 8.1

Iron 32,000 50,000 30,000 17,000 14,000 14,000

Lead 12 5.5 5.1 3.4 6.0 3.8

Magnesium 2,800 880 800 600 1,700 640

Manganese 510 120 84 220 180 170 -

-- Mercury 0.37 <0.29 <0.27 <0.28 <0.30 <0.25

Nickel 20 15 9;8 4.5 12 8.1

Potassium 910 400 290 380· 390 200

Selenium <0.24 <0.23 <0.22 <0.22 . <0.24 <0.20

Sodium 57 72 99 64 58 52

Thallium <0.30 <0.29 <0.27 <0.28 <0.30 <0.25

Vanadium 22 12 18 12 35 15

Zinc 55 30 22 16 30 16
TABLE 4-10

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

INORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppm)

MW-18 MW-19 MW-19 MW-20 MW-20 MW-6D

PARAMETER (S-23) (S-1) (S-2) (S-3) (S-4) (S-25)

(TOTAL) 14'· 16' 8'·10' 18'· 20' 4'· 6' 20'- 22' 18'· 20'

Cyanide 4.3 <0.61 <0.60 <0.59 <0.57 0.83

. Aluminum 12,000 11,000 5,000 11,000 5,000 9,500

Antimony <12 1,300 1,300 2,100 850 <12

Arsenic 2.8. 4.5 2.1 2.6 4.1 2.3

Barium 37 44 54 190 33 44

Beryllium <0.61 <3.0 <3.0 <2.9 <2.8 0.71

Cadmium <0.61 <3.0 <3.0 <2.9 <2.8 0.71

Calcium 870 1,300 1,300 21,000 2,000 1,100

Chromium 20 18 14 19 16 29

Cobalt 4.9 6.1 11 18 5.7 7.1

Copper 9.8 . 8.5 <6.0 52 13 23

Iron 18,000 21,000 37,000 25,000 27,000 35,000

Lead 8.0 7.4 4.0 74 22 20

Magnesium 2,400 1,800 860 6,800 1,700 1,800

Manganese 84 98 2,100 490 69 110

Mercury <0.30 <0.30 <0.30 0.59 <0.28 <0.30

Nickel 8.5 15 19 22 14 20

Potassium 730 730 480 1,200 450 650

Selenium <0.24 <0.24 <0.24 0.35 <0.23 <0.95

Sodium 320 <150 <150 220 <140 90

Thallium <0.30 <0.30 <0.30 <0.29 <0.28 <0.60

Vanadium 23 26 13 26 26 30

Zinc 30 38 37 210 36 62
(

\

(

TABLE 4·10

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC SOIL

..- - SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

INORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppm)

MW-6D C5X-1 C5X-1 C5X-2 C5X-2

PARAMETER (5-26) (S-29) (5-30) (5-27) (5-28)

(TOTAL) 20'· 22' 46'· 48' 48-· 50- 44'·~ 46'· 48'

Cyanide 0.71 <0.56 <0.56 <0.55 <0.56

Aluminum 8.600 2.500 6,900 7,100 6,500

Antimony <12 <22 <22 <22 <22

Arsenic 1.6 <0.45 <0.90 2.0 1.3

Barium 36 13 46 23 18

Beryllium 0.59 NA NA <1.1 <1.1

Cadmium <0.59 <1.1 <1.1 <1.1 <1.1

Calcium 850 220 1,100 590 600

Chromium 24 7.9 22 33 29

Cobalt 9.4 3.4 6.7 9.9 9.0

Copper 16 5.6 11 16 13

Iron 27,000 4,400 13,000 22,000 19,000

Lead 13 7.3 6.0 5.8 5.3

Magnesium 1,900 570 1,500 1,100 920

Manganese 140 96 180 110 93

Mercury <0.29 <0.28 <0.28 <0.27 <0.28

Nickel 16 <4.5 13 14 13

Potassium 740 220 450 370 330

Selenium <0.94 <1'.1 <0.90 <1.1 <0.90

Sodium 67 35 79 68 55

Thallium <0.59 <0.56 <0.56 <0.55 <0.56

Vanadium 32 9.0 20 34 27

Zinc 48 13 35 34 29

TAL· Target Analyze Ust
l

c~

TABLE 4-11

SYNOPTIC GROUNDWATER AND FREE PRODUCT ELEVATION DATA

DPSC, PHILADELPHIA, PENNSYLVANIA

OCTOBER 21, 1994

WELLID. ELEVATION AT TOC DEPTH TO DEPTH TO PRODUCT LAYER . ADJUSTEDWATER

NO. (MEASURING POINT) PRODUCT WATER THICKNESS TABLE ELEVATION*

ABOVE M.S.L.(FT,) (FT.) (FT.) (FT.) (FT.)

MW·1 20.78 NA 18.65 NA 2.13

MW·2 21.87 20.40 21.15 0.75 1.28

MW-3 20.34 18.65 20.60 1.95 1.20

MW-4 20.61 18.98 20.54 1.56 1.24

MW-5 20.33 18.87 20.14 1.27 1.14

MW-6 21.18 19.63 20.78 1.15 1.26

MW·7 19.31 17.42 19.28 1.86 1.43

MW·1A 21.33 19.35 19.78 0.43 1.87

MW·2A 21.13 NA 18.80 NA 2.33

* Based on the free product specific gravity of 0.75

NA - Not Applicable

/
(

\

\ TABLE 4-12

SYNOPTIC GROUNDWATER AND FREE PRODUCT ELEVATION DATA

DPSC, PHILADELPHIA, PENNSYLVANIA

DECEMBER 14,1994

WELLID. ELEVATION AT TOC DEPTH TO DEPTH TO PRODUCT LAYER ADJUSTED WATER

NO. (MEASURING POINT) PRODUCT WATER THICKNESS TABLE ELEVATIONABOVE M.S.L (FT.) (FT.) (FT.) (FT.) . (FT.)

MW·1 20.78 NA 19.30 NA 1.48

MW·2 21.87 20.03 21.95 1.92 1.36

MW-3 20.34 19.30 21.20 1.90 0.57

MW~ 20.61 19.66 21.29 1.63 0.54

MW·5 20.33 19.37 20.78 1.41 0.61

_.MV/.O 21.18 20.40 21.45 1.05 0.52

MW·7 19.31 18.08 20.24 2.16 0.69

MW·1A 21.33 20.06 20.55 0.49 1.15

MW·2A 21.13 NA 19.05 NA 2.08

.. Based on free product specific gravity of 0.75

NA -. Not Applicable
TABLE 4-13

SYNOPTIC GROUNDWATER AND FREE PRODUCT ELEVATION DATA

DPSC, PHILADELPHIA, PENNSYLVANIA

MARCH 1 AND 2,1995

wallO. ELEVATION AT TOC DEPTH TO DEPTH TO PRODUCT LAYER ADJUSTED WATER

NO. (MEASURING POINT) PRODUCT WATER THICKNESS TABLE ELEVATIONABOVE M.S.L (FT.) (FT.) (FT.) (FT.) (FT.)

MW·1 20.78 NA 19.29 0 1.49

MW·2 21.81 20.89 21.84 0.95 0.68

MW-3 20.34 19.06 21.02 1.96 0.79

t1N'1-4 20.61 19.34 21.00 1.66 0.86

tIN'I·5 20.33 18.77 20.76 1.99 1.06

t1N'1-6 21.18 ,20.00 21.71 1.71 0.75

MW-6D 21.45 NA 20.76 0 0.69

t1N'1-7 19.31 18.04 19.97 1.93 0.79

t1N'1-1A 21.33 20.06 20.34 0.28 1.20

t1N'1-2A 21.13 NA 19.12 0 2.01

MW·9 20.08 19.12 19.16 0.04 0.95

MW·10 '16.56 NA 15.01 0 1.55

MW·11 20.21 18.92 20.59 1.67 0.87

MW·12 19.54 NA 17.85 0 1.69

MW-13 20.38 NA 18.69 0 1.69

t1N'1-14 20.27 18.83 20.40 1.57 1.05

tIN'I·15 22.58 21.28 22.43 1.15 1.01

MW-16 20.36 NA 18.78 0 1.58

tIN'I·17 22.25 NA1 19.91 0 2.34

tIN'I·18 17.93 NA 15.92 0 2.01

t1N'1-19 23.12 NA 18.00 0 5.12

MW·2O 25.66 NA ,20.50 0 5.16

tIN'I·2OD 25.80 NA 24.56 0 1.24

tIN'I-CSX-1 51.32 NA 45.73 0 5.59

tIN'I.CS)(·2 46.70 . NA 46.31 0 0.39

- Based on product specific gravity of 0.75

NA • Not Applicable
,

/'-

,

I

\

, TABLE 4-14

DATA SUMMARf: ANALYTICAL RESULTS FOR DPSC FREE

PRODUOT SAMPLES (GRO, ORO, AND BTEX)

1

/

SAMPLE PARAMETERS

SAMPLE SAMPLE

NO. DATE ETHYL 

GRO . ORO BENZENE BENZENE TOLU

(ppb) (ppb) (ppb) (ppb) (pp

MW-15 (FP) 03/01/94 330,000,000 130,000,000 1,700 4,800 

MW-2 (FP) 03/01/94 360,000,000 160,000,000 2,700 4,900 

MW-3 (FP) 03/01/94 30,000,000 140,000,000 3,000 4,100 

MW-14 (FP) 03/01/94 370,000,000 150,000,000 3,700 4,200 

MW-11 (FP) 03/01/94 360,000,000 120,000,000 2,800 2,600 

MW-4 (FP) 03/01/94 500,000,000 150,000,000 1,400 6,500 

MW-6 (FP) 03/01/94 390,000,000 150,000,000 6,100 5,700 

MW-7 (FP)

-

03/01/94 340,000,000 130,000,000 1,600 5,100 <

MW-1A (FP) 03/01/94 270,000,000 190,000,000 <1,000 4,800 <

MW-5 (FP) 03/02/94 380,000,000 150,000,000 <1,000 4,700 <

MW-9 (FP) 03/02/94 280,000,000 150,000,000 <1,000 3,000 <

NOTE: Laboratory could not perform TPH analyses on free product samples.
TABLE 4-15

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TPH, GRO, ORO, AND BTEX)

SAMPLE PARAMETERS

WEll SAMPLE

NO. DATE TPH GRO ORO BENZENE TOLUENE ETHYL TOTAL

(ppm) (ppm) (ppm) (Ppb) (Ppb) . BENZENE XYlENES

(Ppb) (ppb)

MW·1A 3/7/95 360* 90.000 78.000 6.500 520 1.000 3.300

MW·2A 3/8/95 <1.0* <100 <500 <5.0 <5.0 <5.0 <5.0

MW·1 3/8/95 6.0· 9.200 2.000 <5.0 16 77 280

MW·2 3/8/95 85* 28.000 50.000 1,100 960 1,200 2,200

MW-3 3/9/95 30 55.000 48.000 32.000 3.200 1,400 6.300

MW-4 3/9/95 280 26.000 110.000 9,100 1.300 540 3.500

MW·5 3/10/95 160 25.000 20.000 500 340 550 1.800

MW-6 3/9/95 69 69.000 68.000 37.000 12.000 1.400 7.100

PJrN·7 3/10/95 65 23.000 29.000 4.200 140 590 670

MW·9 3/15/95 39 22.000 . 11.000 9.600 220 490 1.600

MW·10 3/15/95 <1.0 290 <500 13 <5.0 <5.0 <5.0

MW·11 3/14/95 230 41,000 95.000 9.900 200 830 2.500

MW·12 3/8/95 99* 27.000 44.000 260 140 740 600

MW·13 3/8/95 8.0· 13,000 4,800 160 260 1.200 2.300

MW·14 3/10/95 340 160.000 170.000 14.000 660 1.200 3.700

MW·15 3/14/95 180 170.000 96.000 4.600 2,800 2.500 6.300

MW·16 3/6/95 <1.0* 230 <500 <5.0 <5.0 <5.0 <5.0

MW·17 3/7/95 <1.0* <100 <500 <5.0 <5.0 <5.0 <5.0

MW·18 ·3/7/95 <1.0* <100 <500 <5.0 <5.0 <5.0 <5.0 -

- MW·19 3/7/95 2.0* 940 <500 <5.0 <5.0 <5.0 <5.0

MW·2O 3/6/95 <1.0* 120 <500 <5.0 <5.0 <5.0 <5.0

MW-6D 3/15/95 <1.0 820 <500 590 '<5.0 <5.0 <5.0

MW·2OD 3/15/95 <1.0 <100 <500 <5.0 <5.0 <5.0 <5.0

CSX·1 3/14/95 <1.0 <100 <500 <5.0 <5.0 <5.0 <5.0

CSX·2 3/15/95 4.0 6.400 2.700 87 7.0 43 230

EB-1 3/10/95 <1.0 <100 <500 <5.0 <5.0 <5.0 <5.0

EB-2 3/15/95 <1.0 <100 <500 <5.0 <5.0 <5.0 <5.0

* Biased low (12% LCS recovery)
(

TABLE 4-16

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TeL ORGANIC COMPOUNDS)

VOlJ\TILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

PARAMETER MW-1A MW-2A MW-1 MW-2 MW-3 MW-4

Methylene chloride <25 <5 <5 <50 <50 <50

Acetone <50 <10 <10 <100 <100 <100

Benzene 6,500 <5 <5 1,100 32,000 9,100

Tetrachloroethene <25 6 <5 <50 <50 <50

Toluene 520 <5 16 960 3,200 1,300

Chlorobenzene <25 <5 <5 <50 <50 <50

Ethyl benzene 1,000 <5 TI 1,200 1,400 540

Styrene <25 <5 <5 <50 <50 <50

Xylenes (Total) 3,300 <5 280 2,200 6,300 3,500

SEMI-VOlJ\TILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Phenol <100 <10 <10 58 68 <10

2-Methylphenol <100 <10 <10 <10 <10 <10

4-Methylphenol <100 <10 <10 <10 <10 17

2,4-Dimethylphenol <100 <10 <10 14 <10 <10

Benzoic acid <500 <50 <50 <50 49 <50

Naphthalene B90 <10 <10 400 390 300

2-Methylnaphthalene 370 <10 <10 79 96 97

Phenanthrene lC:100 <10 <10 <10 10 13

Di-n-butylphthalate <100 11 B 12 B <10 <10 <10

pyrene <100 <10 <10 <10 <10 <10

bis(2-Ethylhexyl)phthalate <100 <10 <10 27 27 17

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

alpha-BHC <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

beta-BHC <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

delta-BHC <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Endosulfan sulfate <0.10 <0.10 <0.10 <0.10 <0.10 <0.10

4,4'-DDE <0.10 <0.10 <0.10 <0.10 <0.10 0.69
\

,.

(

TABLE 4-16

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TCl ORGANIC COMPOUNDS)

- - (continued)

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

PARAMETER MW-5 MW-6 MW-50' MW-7 MW-9 MW-10

Methylene chloride 31 <50 <50 <50 <5 <5

Acetone 110 <100 <100 <100 <10 <10

Benzene 500 37,000 38,000 4,200 9,600 13

Tetrachloroethene <25 <50 <50 <50 <5 <5

Toluene 340 12,000 12,000 140 220 <5

Chlorobenzene <25 <50 <50 <50 <5 <5

Ethyl benzene 550 1,400 1,600 590 490 <5

Styrene <25 63 <50 <50 <5 <5

Xylenes (Total) 1,800 7,100 7,400 670 1,600 <5

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Phenol <10 <10 69 110 <10 <10

2-Methylphenol <10 <10 13 <10 <10 <10

4-Methylphenol <10 <10 17 <10 <10 <10

2,4-Dimethylphenol <10 <10 <10 <10 <10 <10

Benzoic acid <50 <50 <50 <50 <50 <50

Naphthalene 300 . 560 250 170 140 <10

2-Methylnaphthalene 58 110 42 26 19 <10

Phenanthrene <10 11 <10 <10 <10 <10

Di-n-butylphthalate <10 <10 <10 <10 <10 <10

Pvrene <10 <10 <10 <10 <10 <10

bis(2-Ethylhexyt)phthalate. <10 <10 <10 <10 <10 <10

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

alpha-BHC <0.05 <0.05 <0.05 <0.10 <0.05 <0.05

beta-BHC <0.05 <0.05 <0.05 <0.10 <0.05 <0.05

delta-SHC 0.50 <0.05 <0.05 <0.10 <0.05 <0.05

Endosulfan sulfate <0.10 <0.10 <0.01 <0.02 <0.10 <0.10

4,4'-DDE <0.10 <0.10 <0.10 <0.20 <0.10 <0.10
TABLE 4-16

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

PARAMETER MW-11 MW-12 MW-13 MW-14 MW-15 MW-16

Methylene chloride <25 62 <25 <250 <25 <5

Acetone <50 <100 <50 <500 <50 51

Benzene 9,900 260 160 14,000 4,600 <5

.Tetrachloroethene <25 <50 <25 <250 <25 <5

Toluene 200 140 260 . 660 2,800 <5

Chlorobenzene <25 <50 49 <250 <25 <5

Ethyl benzene 830 740 1,200 ' 1,200 2,500 <5

Styrene <25 <50 ' <25 <250 <25 <5

Xylenes (Total) 2,500 600 2,300 '3,700 / 6,300 <5

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Phenol ' <10 <10 <10 <100 <10 <10

2-Methylphenol <10 <10 <10 <100 <10 <10

4-Methylphenol <10 <10 <10 <100 <10 <10

2,4-Dimethylphenol <10 <10 <10 <100 <10 <10

Benzoic acid <50 <50 <50 <500 <50 <50

Naphthalene 690 370 160 1,400 1,500 <10

2-Methylnaphthalene 170 65 <10 420 320 <10

Phenanthrene 44 15 <10 100 21 <10

Di-n-butylphthalate <10 <10 11 B <100 <10 <10

pyrene 12 <10 <10 <100 <10 <10

bis(2-Ethylhexyl)phthalate <10 <10 . <10 <100 20 <10

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

alpha-BHC 0.1,3 <0.05 <0.05 <0.10 <0.05 <0.05

beta-BHC <0.05 0.07 <0.05 <0.10 <0.05 <0.05

delta-BHC <0.05 <0.05 <0.05 <0.10 <0.05 <0.05

Endosulfan sulfate <0.10 <0.10 <0.10 <0.20 <0.10 <0.10

4,4'-DDE <0.10 <0.10 <0.10 <0.20 <0.10 <0.10
(

TABLE 4-16

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TCl ORGANIC COMPOUNDS)

(continued)

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

PARAMETER MW-17 MW-18 MW-19 MW-20 MW-6D MW-20D

Methylene chloride <5 <5 <5 <5 <5 <5

Acetone <10 <10 <10 <10 15 <10

Benzene <5 <5 <5 <5 590 <5

Tetrachloroethene <5 <5 <5 <5 <5 <5

Toluene <5' <5 <5 <5 <5 <5

Chlorobenzene <5 <5 <5 <5 <5 <5

Ethyl benzene <5 <5 <5 <5 <5 <5

Styrene <5 <5 <5 <5 <5 <5

I-Xylenes (Total) <5 <5 <5 <5 <5 <5

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Phenol <10 <~O <10 <10 16 <10

2-MethvlDhenol <10 <10 <10 <10 <10 <10

4-Methylphenol <10 <10 <10 <10 <10 <10

2,4-Dimethylphenol <10 <10 <10 <10 <10 <10

Benzoic acid <50 <50 <50 <50 <50 <50

Naphthalene <10 <10 <10 <10 <10 <10

2-Methylnaphthalene <10 <10 <10 <10 <10 <10

Phenanthrene <10 <10 <10 <10 <10 <10

Di-n-butylphthalate <10 <10 <10 <10 <10 <10

Pvrene <10 <10 <10 <10 <10 <10

bis(2-Ethylhexyl)phthalate <10 46 <10· <10 <10 <10

PESTICIDE,PCB-ANALYTICAL RESULTS (ppb)

alpha-BHC <0.05 <0.05 <0.05 <O.OS <0.05 ' <0.05

'beta-BHC <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

delta-BHC <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Endosulfan sulfate <0.10 <0.10 <0.10 <0.10 0.19 0.14

4,4'-DDE <0.10 <0.10 <0.10 <0.10 <0.10 <0.10
TABLE 4-16

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER'SAMPlES (TCl ORGANIC COMPOUNDS)

(continued)

VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

PARAMETER CSX-1 CSX-2 EB-1 EB-2

Methylene chloride <S <S <S <S

Acetone <10 <10 <10 <10

Benzene <S 87 <S <S

Tetrachloroethene <S <S <S <S

Toluene <5 7.0 <5 <5

Chlorobenzene <5 <S <S <5

Ethyl benzene <S 43 <S <S

Styrene <S <S <S <S

Xylenes (Total) <S 230 <S <5

SEMI-VOLATILE ORGANIC COMPOUNDS-ANALYTICAL RESULTS (ppb)

Phenol <10. <10 <10 <10

2-Methylphenol <10 <10 <10 <10

4-Methylphenol <10 <10 <10 <10

2,4-Dimethylphenol <10 <10 <10 <10

Benzoic aCid <so <so <so <50

Naphthalene <10 70 <10 <10

2-Methylnaphthalene <10 14 <10 <10

Phenanthrene <10 '<10 <10 <10

Di-n-butyJphthalate <10 <10 <10 <10

pyrene <10 <10 <10 <10

bis(2-EthylhexyJ)phthalate <10 <10 <10 31

PESTICIDE/PCB-ANALYTICAL RESULTS (ppb)

alpha-BHC <0.05 <0.05 <O.OS <0.05

beta-BHC <0.05 <0.05 <0.05 <O.OS

delta-BHC <O.OS <0.05 <0.05 <O.OS

Endosulfan sulfate <0.10 <0.10 <0.10 0.13

4,4'-DDE <0.10 <0.10 <0.10 <0.10

(Duplicate OF MW-6)

TCl Target Compound Ust
(

(

TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

PARAMETER MW-1A MW-2A MW-1 MW-2 MW-3 MW-4

INORGANIC COMPOUNDS (TOTAL) - ANALYTICAL RESULTS (ppm)

Cyanide <0.01 <0.01 <0.01 <0.01 <0.01 0.02

Aluminum 3.9 5.4 8.6 1.9 0.60 9.0

Arsenic 0.033 0.008 0.010 0.006 0.010 0.009

Barium 3.9 0.13 0.23 0.04 0.29 0.48

cadmium <0.01 0.05 <0.01 <0.01 <0.01 0.01

Calcium 29 95 . 68 54 47 150 -

Chromium <0.02 0.03 <0.02 <0.02 <0.02 0.10

Cobalt <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 .

Copper <0.02 0.04 <0.02 <0.02 <0.02 0.15

Iron 26 28 54 68 61 92

Lead 0.010 0.031 0.015 <0.005 <0.005 0.22

Magnesium 48 82 30 17 84 46

Manganese 0.59 5.4 3.1 4.0 0.78 . 3.8

Nickel <0.04 <0.04 <0.04 <0.04 <0.04 <0.04

..--........... _. Potassium" <1.0 5.0 6.0 3.0 1.0 9.0

Sodium 51 110 67 10 99 270

Vanadium 0.02 0.02 0.02 <0.01 <0.01 0.05

Zinc 0.14 0.41 0.04 0.03 0.03 0.60

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Aluminum <0.10 <0.10 <0.10 <0.10 0.20 0.60

Arsenic 0.011 <0.004 <0.004 <0.004 0.005 <0.004

Barium 0.05 0.08 0.12 0.02 0.28 0.46

calcium 30 100 65 53 47 160

Chromium <0.02 <0.02 <0.02 <0.02 <0.02 <0.02

Cobalt <0.02 <0.02 <0.02 <0.02 <0.02 <0.02

Copper <0.02 <0.02 <0.02 <0.02 <0.02 0.02
TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER MW-1A MW-2A MW-l MW-2 MW-3 MW-4

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAl RESULTS (ppm)

Iron 0.81 <0.04 6.1 15 27 39

Lead <0.005 <0.005 0.007 <0.005 <0.005 0.094

Magnesium 48 89 32 17 88 43

Manganese 0.55 4.9 3.0 4.0 0.83 3.7

Potassium <1.0 5.0 6.0 4.0 1.0 9.0

Sodium 52 120 71 10 100 280

Vanadium <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Zinc 0.07 0.04 . 0.02 0.01 0.01 0.28
\

'--

r

TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER MW-5 MW-6 *MW-50 MW-7 MW-9 MW-10

INORGANIC COMPOUNDS (TOTAL) - ANALYTICAL RESULTS (ppm)

Cyanide <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Aluminum 1.9 0.3 0.02 1.3 13 2.0

Arsenic 0.006 0.010 0.012 0.082 0.011 <0.004

Barium 0.03 0.24 0.25 0.10 0.19 0.76

cadmium <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

calcium 29 120 120 89 62 120

Chromium <0.02 <0.02 <0.02 <0.02 0.02 <0.02

Cobalt 0.02 <0.02 <0.02 <0.02 0.05 <0.02

Copper <0.02 <0.02 <0.02 <0.02 <0.02 <0.02

Iron 8.9 67 68 59 70 10

. Lead <0.005 <0.005 <0.005 <0.005 0.01 0.014

Magnesium 14 16 16 13 33 52

Manganese 2.5 4.8 4.9 0.16 11 0.44

Nickel <0.04 <0.04 <0.004 <0.04 <0.04 <0.04

Potassium 1.0 4.0 5.0 11 6.0 12

Sodium 50 74 75 55 40 65

Vanadium <0.01 <0.01 <0.01 <0.01 0.02 <0.01

Zinc 0.02 0.02 0.02 0.02 0.06 0.05

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Aluminum <0.10 0.20 0.30 <0.10 <0.10 <0.10

Arsenic <0.004 0.004 0.007 0.044 <0.004 <0.004

Barium 0.03 0.24 0.23 0.05 0.09 0.66

Calcium 30 120 120 93 64 130

Chromium <0.02 <0.02 <0.02 <0.02 <0.02 <0.02

Cobalt 0.03 <0.02 <0.02 <0.02 0.03 <0.02
l

TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDST

(continued)

PARAMETER MW-5 MW-6 *MW-50 MW-7 MW-9 MW-10

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Copper <0.02 <0.02 <0.02 <0.02 <0.02 <0.02

Iron 0.61 50 48 17 8.1 <0.04

Lead <0.005 <0.005 <0.005 <0.005 <0.005 <0.005

Magnesium 15 16 16 14 34 56

Manganese 2.6 4.7 4.8 0.15 12 0.45

Potassium 1.0 4.0 3.0 11 6.0 12

Sodium 54 77 73 .58 42 69

Vanadium <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Zinc 0.02 0.01 0.02 0.03 <0.01 0.02
L

TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER MW-11 MW-12 MW-13 MW-14 MW-15 MW-16

INORGANIC COMPOUNDS (TOTAL) - ANALYTICAL RESULTS (ppm)

Cyanide <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Aluminum 28 12 1.8 18 11 0.70

Arsenic 0.009 0.007 0.007 0.013 <0.004 <0.04

Barium 0.45 0.31 0.24 0.18 0.30 0.11

Cadmium <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

.Calcium 72 62 59 35 61 68

Chromium 0.06 <0.02 <0.02 .0.06 0.02 <0.02

Cobalt 0.03 <0.02 <0.02 0.02 <0.02 <0.02

Copper 0.03 0.03 <0.02 0.03 <0.02 <0.02

Iron 140 90 11 59 59 2.1

Lead 0.035 0.014 <0.005 0.020 0.025 <0.005

Magnesium 55 25 57 63 67 54

Manganese 0.86 1.2 0.19 0.65 1.9 1.3

Nickel 0.05 <0.04 <0.04 <0.04 <0.04 <0.04

Potassium 14 8.0 11 3.5 7.0 13

Sodium 190 220 190 64 83 56

Vanadium 0.05 0.03 <0.01 0.05 0.02 0.01

Zinc 0.13 0.08 0.02 0.11 0.06 0.05

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Aluminum <0.10 <0.10 <0.10 0.10 <0.10 0.70

Arsenic 0.007 0.004 <0.004 0.005 0.005 <0.004

Barium 0.23 0.18 0.21 0.06 0.17 0.11

Calcium 73 60 60 36 65 68

Chromium <0.02 <0.02 <0.02 <0.02 <0.02 <0.02

Cobalt <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
(rTABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER MW-11 MW-12 MW-13 MW-14 MW-15 MW-16

INORGANIC COMPOUNDS (DISSOLVED). ANALYTICAL RESULTS (ppm)

Copper 0.03 <0.02 <0.02 <0.02 <0.02 <0.02

Iron 0.64 14 0.12 0.17 0.27 1.9

Lead <0.005 <0.005 <0.005 <0.005 0.007 <0.005

Magnesium 55 23 62 66 69 53

\ Manganese 0.28 0.99 0.16 0.41 1.2 1.2

Potassium 13 7.0 11 1.0 7.0 12

.~

- Sodium 200 220 190 71 86 55

Vanadium <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Zinc <0.01 0.01' <0.01 0.01 <0.01 0.01
TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER MW-17 MW-18 MW-19 MW-20 MW-6D MW·20D

INORGANIC COMPOUNDS (TOTAL) - ANALYTICAL RESULTS (ppm)

Cyanide <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Aluminum 6.0 2.8 19 13 <0.10 0.60

Arsenic <0.04 <0.004 <0.004 <0.004 <0.004 <0.004

Barium 6.0 2.8 19 0.18 0.07 0.06

Cadmium <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Calcium n 47 65 69 41 55

Chromium 0.03 <0.02 0.1 0.07 <0.02 <0.02

Cobalt <0.02 <0.02 0.06 0.02 <0.02 <0.02

Copper <0.02 <0.02' 0.06 0.03 <0.02 <0.02

Iron 23 5.5 110 50 0.87 39

Lead 0.005 0.007 0.03 0.017 <0.005 <0.005

Magnesium 49 36 53 60 15 45

Manganese 4.3 0.98 5.6 1.8 .0.75 5.3

Nickel <0.04 <0.04 0.07 <0.04 <0.04 <0.04

Potassium 8.6 5.3 4.3 14 5:0 5.0

Sodium 49 210 49 59 37 39

Vanadium 0.02 <0.01 0.09 0.06 <0.01 <0.01

Zinc 0.07 0.04 0.24 0.21 0.06 0.04

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Aluminum <0.10 <0.10 <0.10 5.5 <0.10 <0.10

Arsenic <0.004 <0.004 <0.004 <0.004 <0.004 <0.004

Barium 0.11 0.06 0.28 0.14 0.06 0.05

calcium 85 48 63 69 41 61

Chromium <0.02 <0.02 <0.02 0.04 <0.02 <0.02

Cobalt <0.02 <0.02 <0.02 <0.02 <0.02 <0.02
L

c

TABLE 4-17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER MW-17 MW-18 MW-19 MW-20 MW-6D MW-20D

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Copper <0.02 <0.02 <0.02 . <0.02 <0.02 <0.02

Iron 0.03 0.05 0.21 24 0.04 18

Lead <0.005 <0.005 <0.005 <0.005 <0.005 <0.005

Magnesium 54 37 49 61 15 50

Manganese 4.7 0.87 3.2 - ~~. 0.73 6.6

Potassium 8.6 6.4 3.2 14 2.0 6.0

Sodium 55 230 50 58 35 42

Vanadium <0.01 <0.01 <0.01 0.03 <0.01 <0.01

Zinc 0.06 0.07 0.18 0.04 0.06 0.04

~.-•...-.... -
r\

',--

TABLE 4-17

DATA SUMMARY:' ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER CSX-1 CSX-2 EB·1 EB·2

INORGANIC COMPOUNDS (TOTAL) • ANALYTICAL RESULTS (ppm)

Cyanide 0.01 0.02 <0.01 <0.01

Aluminum 21 6.2 <0.10 <0.10

Arsenic <0.004 0.006 <0.004 <0.004

Barium 0.25 0.07 <0.01 <0.01

cadmium <0.01 <0.01 <0.01 <0.01

Calcium 72 180 0.20 1.0

Chromium 0.10 <0.02 <0.02 <0.02

Cobalt 0.03 " <0.02 <0.02 <0.02

Copper 0.05 <0.02 <0.02 <0.02

Iron 57 26 <0.04 0.13

Lead 0.021 <0.005 <0.005 <0.005

Magnesium 66 160 <0.50 <0.50

Manganese 1.2 0.69 <0.01 <0.01

Nickel 0.06 <0.04 <0.04 <0.04

Potassium 23 5.0 <1.0 2.0

Sodium 32 43 0.90 1.5

Vanadium 0.07 <0.01 <0.01 <0.01

Zinc 0.12 0.02 <0.01 0.01

INORGANIC COMPOUNDS (DISSOLVED) - ANALYTICAL RESULTS (ppm)

Aluminum 0.10 0.6 <0.10 <0.10

Arsenic <0.004 0.006 <0.004 <0.004

Barium 0.13 0.07 <0.01 <0.01

Calcium 71 200 0.60 1.2

Chromium <0.02 <0.02 <0.02 <0.02

Cobalt <0.02 <0.02 <0.02 <0.02
L *

TABLE 4·17

DATA SUMMARY: ANALYTICAL RESULTS FOR DPSC

GROUNDWATER SAMPLES (TAL INORGANIC COMPOUNDS)

(continued)

PARAMETER CSX-1 CSX-2 EB-1 EB-2

INORGANIC COMPOUNDS (DISSOLVED)· ANALYTICAL RESULTS (ppm)

Copper <0.02 <0.02 <0.02 <0.02

Iron 0.13 7.4 <0.04 0.08

Lead <0.005 <0.005 <0.005 <0.005

Magnesium 67 180 <0.50 <0.50

Manganese 0.72 0.70 <0.01 <0.01

Potassium 23 5.0 <1.0 <1.0

Sodium 34 41 0.90 1.5

Vanadium <0.01 0.01 <0.01 <0.01

Zinc· 0.02 0.05 <0.01 0.03

(Duplicate of MW-6)

TAL - Target Analyte Ust
TABLE 4-18

AQUIFER HYDRAULIC CONDUCTIVITIES (SLUG TEST DATA)

DPSC, PHILADELPHIA, PENNSYLVANIA -

(

WELL HYDRAUUC HYDRAUUC HYDRAUUC

IDENTIFICATION CONDUCTIVITY K CONDUCTIVITY K CONDUCTIVITY K

(FT/MIN) (FT/DAY) (GPD/FT2

)

MW-1 3.2060 X 10.3 4.6166 34.5

MW-1A 0.4553 X 10.3 0.6566 4.91

MW-2A -. 0.0479 X 10.3 0.0690 0.516

MW-3 5.609 X 10.3 8.079 60.414

MW-4 0.4549 X 10.3 0.6550 4.8996

MW-5 1.7260 X 10.3 2.485 18.623

MW-6 0.5776 X 10-3 0.8317 6.221

MW-10 0.7599 X 10.3 1.0942 8.185

MW-11 10.960 X 10.3 15.7824 118.05

MW-12 7.4660 X 10.3 10.7510 80.417

MW-13 0.3666 X 10-3 0.5279 3.941

MW-14 4.2440 X 10.3 6.11.1 45.713

MW-15 3.3460 X 10.3 4.8182 36.040

MW-16 0.1396 X 10.3 0.2010 1.503

MW-17 0.1927 X 10.3 0.2774 2.075

MW-18 0.2846 X 10.3 0.4069 3.043 .

MW-19 4.8400 X 10.3 6.9696 52.123

MW-20 2.9600 X 10-3 4.2620 31.882

MW-CSX2 0.7740 X 10-3 1.1145 8.337

MW-20D 2.4010 X 10.3 3.4570 25.858

MW-6D 17.130 X 10.3 24.667 184.510

Average =2.640 x 10.3 Ftjmin 3.81 Ftjday 28.50 gpd/Jr

Monitoring Wells MW-2 & MW-9 not included due to erroneous data.

Monitoring Wells MW-CSX1 and MW-7 not included due to extremely slow recharge.

Data are analyzed for deep monitoring wells MW-6D & MW-20D, but are not included In average K evaluation

because these are not screened in the shallow zone in which the rest of the wells are screened.

(- .

\ Data for monitoring well MW-CSX2 not Included In the average K evaluation because of its location outside of

the main DPSC facility.
,-------,

(

5.0 GEOLOGY

Establishment of the geological framework in the area of DPSC is a

prerequisite to defining both the facility's site specific aquifer system and ,

contaminant transport pathways within that system. Extensive drilling within the

Philadelphia area and on the DPSC site itself has provided a substantial data base

from which geologic profiles may be constructed to help develop a better

understanding of subsurface conditions. Historical land use data discussed in

Section 1.0 of this report provides an indication of how various site activities and

structures may have influenced subsurface conditions at DPSC. Section 11.3 gives

some insights into how underground utilities and associated bedding materials and

backfill may affect contaminant transport pathways in the subsurface.

The primary reference for regional geologic data in the vicinity of DPSC is

entitled Groundwater in the Coastal Plain of Pennsylvania, published in 1961 by the

Pennsylvania Geological Survey. DPSC's site specific-Qe.otechnical.database

originated from four separate site investigations conducted during the past fifty

years. The first was conducted in the early 1940s to determine the stability of soils

prior to building construction. In January 1988, a Fuel Contamination Study was

conducted involving the advancement of soil borings and the installation of

monitoring wells. Additional soil borings and monitoring wells were emplaced in

January and May 1991 at the request of the ACOE in Huntsville, Alabama. The

ACOE in Baltimore advanced soil borings and installed two additional monitoring

wells in June 1992. Logs of each of these borings and wells were compiled and

integrated with regional geologic logs available from the 1961 Pennsylvania

Geologic Survey report and the soil boring logs prepared by Versar during the

DPSC Phase I RI investigation. This geotechnical database has been reproduced

and included along with a boring location map in Appendices F and G.

----.., ...

5.1 Regional Geology

. . The DPSC is located in the Coastal Plain Physiographic Province just east of

the Fall Une, a northeast-southwest trending line that divides the rolling hills of the

Piedmont from the flat lowlands of the Coastal Plain. The Piedmont is underlain by

dense hard rocks that support its hilly surface, while the Coastal Plain overlies soft

unconsolidated deposits that erode' easily to form low, nearly flat plains. These

soils dip gently (40-80 feet per mile) to the southeast, forming a wedge-shaped

mass that thickens toward the Atlantic Ocean. In the Philadelphia area, the various

soil layers are laterally discontinuous and locally thicken and thin or are completely

absent The availability of extensive drilling data in the South Philadelphia area has

enabled the Pennsylania Geological Survey to generate reliable estimates of the

thickness and areal extent of these formations.

2727F1NL001 5-1
5.1.1 ;':;tratigraphy

;Jroximately 100 to 120 feet of overburden materials overlie bedrock at the

DPSC iocation. This overburden consists of sediments of Cretaceous, Pleistocene,

.and Recent age. Macrostratigraphy O.e., the areal extent of individual formations

and formation members) is controlled largely by the location of paleochannels

incised into the Pre-Camrian bedrock surface. One such paleochannel, referred to

as the League Island Trough, is developed along the western side of the DPSC

site. According to well construction data available from a water supply well that

formerly existed in Building 8 (Figure 5-1A), sediments within this trough are limited

to a thickness of about 80 feet on the eastern side on DPBC.

Regional mapping and DPSC soil boring data indicate t~at the sediments in

the League Island paleochannel thickens along the western portion of the site.

Based on this information, it is anticipated that a number of Cretaceous,

Pleistocene, and Recent Formations should thin or be absent on the eastern part of

the installation.' Table 5-1 presents the subsurface stratk:-3phy projected from

regional geologic data. The formation elevations and thl,.· ...nesses derived from the

installation of the supply well in Building 8 ind::ated bedrock to be shallower than

was originally mapped in the 1961 Pennslyvania Geological Survey'report.

Geologic cross-sections were developed to show the stratigraphy of the DPSC site

along several section lines as shown in Figure 5-1B. Figure 5-2 is a revised

regional cross-section of the stratigraphic section at DPSC based on geologic data .)

from the supply well and on soil boring logs prepared during the installation of two

deeD monitoring'wells MW-6D and MW-20D, both of which drilled to a depth of

app: Jximately 85 feet below land surface during Phase I. This revised regional

cross-section provides the geologic framework for differentiation of individual

aquifers in the aquifer system underlying DPSC.The DPSe aquifer system is

described in Section 6.2 of this report.

5:.2 Phase I Geological Characterizatio.n

Sixteen soil borings were advanced during Phase I of the DPSe RI. The

boring data were incorporated into the existing DPSe geotechnical datc:base to

characterize site specific geology. Geologic site characterization then served as

the basis for evaluating migration and accUmulation mechanisms and pathways for

petroleum hydrocarbons and any other potential groundwater contaminants

detected during the RI.

During the installation of the Phase I RI monitoring wells, continuous splitspoon sampling was conducted in order to accurately define the soil characteristics

and site stratigraphy. All split-spoon samples were identified in accordance with

Unifl'd Soil Classification System (USeS) criteria. In order to confirm the accuracy

of fie ,j identification, undisturbed soil samples were procured from each boring. In

addition, to determine the confining nature of the clays at the site, Shelby Tube r .. J

2727i·INL001 5-2
i

"-

rsamples were procured. .A11 geotech'nical samples were sent to Schnabel

Engineering Associates for analysis.

Table 5-2 summarizes the laboratory analyses and includes the field

identifications for comparison. Table 5-3 presents the results from the Shelby tube

permeability testing. Geotechnical analysesJincluding soil gradation curvesJare

presented in Appendix H. Some variation is expected in the field descriptions of

sands and gravels; howeverJof primary importance to this site is the confirmation

of the descriptions of the claYJ siltJand other low permeability units.

5.2.1 Discussion of Geologic Cross-sections

Data acquired during Phase I of the RI indicate that the geology of the OPSC

site varies to some extent from regional mapping due to the siteJs orientation

relative to the axis of the League Island paleochannel. DPSC was found to be

located on the eastern flank of this paleochannelJrather than along its axis.

Sediments on the flank of the paleochannels tend to have steeper initial d!ps and

thinJpinch-outJor are truncated by younger deposits. As can be seen in Figure 5-

2Jsedimentary units in the vicinity of MW·200 appear at the depths predicted by

the 1961 USGS report. HoweverJsince the middle and lower clays we're not

encountered during the installation of MW-BOJit may be concluded that an

unconformity exists which places Recent and Pleistocene deposits in contact with

Cretaceous sediments~ .' This stratigraphic relationship suggests that a single

aquiferJconsisting of undifferentiated RecentJPleistocene and Cretacous depositsJ

exists in the central and eastern portions of OPSC.

Shallow well logs and boring logs from the site were utilized in the preparation

of geologic cross sections. This was done to provide a framework for the analysis

of groundwater flow and contaminant transport pathways. These cross sections

were also used to evaluate the mechanism through which substantial volumes of

petroleum hydrocarbons "accumulated as fre~. product within the uppermost aquifer

at OPSC.

- Cross section A·AJ

JFigure 5-3Jwas completed in the presumed direction of

regional groundwater flow. The line of section originates in the northeastern part of

the Sun Oil Company refinery south yard and continues in a southeasterly direction

across the OPSC site. This cross-section showsJin the vicinity of 8-76Ja sand

pinching out beneath a clay; these stratigraphic units being interpreted as the Old

Bridge and the Upper ClaYJ respectively. The Upper Clay unitJ in turn; appears to

pinch out between MW-17 and MW-16Jand reappears in MW-7.

It was not possible to distinguish between the undifferentiated

Recent/Pleistocene deposits and the underlying Farrington sand during the logging

of soil borings MW-BO and MW-200Jthe two deep wells drilled during Phase I of

the RI. MW-200 was drilled to 66Jbelow MSL Nine feet of clay was encountered

from 31 Jto 39Jbelow MSL This depth interval corresponds to regional depths of

2727ANL001 5-3
the middle and lower clays. Therefore, it is concluded that MW-20D was )

completed in the Farrington Member. MW-6D was drilled to 65' below MSL No

similar clay unit was encu..mtered during the installation of MW-6D. The absence of

clay would indicate the presence of an erosional unconformity. In the absence of

this clay layer, dissolved contaminants may potentially migrate to the Farrington

Sand aquifer.

The presence of a near surface clay unit at DPSC has a significant bearing on

the migration and accumulation of vaporous and free product phase hydrocarbons

at the site. Figures 5-4 and 5-5 illustrate the structural attitude of the lower surface

of the clay and the unit's overall thickness, respectively. Note that the surf! al clay

is absent ,in the northwE;3tern portion of tht :3ite, an area where fill materials ~xceed

a total thickness of twenty feet It is also significant that this clay thins a1on&i ~he

southern portion of the site. Shelby tube samples of this clay unit were acquired at

various locations for permeameter analysis. The results of this testing, shown in

Table 5-3, indicate that the clay's permeability is S!Jfficiently low to retard both fluid

and gas migration.

The cross-sections and maps presented in Figure 5-3, 5-4, 5-5, and 5-6

indicate that the surfical clay unit has the geometry of a dome-like feature. The

base of this clay appears to intersect the site water table in the vicinity of the

soutt:aern property boundary, and at the southwest and southeast corners of the

site. The clay, acting in conjunction with a large, east-west trending City of

Philadelphia sewer located just south of the Schuylkill Expressway, inhibits the

southerly (regional) flow of groundwater and any associated free product The

limits of the ·clay dome· are consistent with the areal extent of free product at the

DPSC site, discussed in detail in Section 7.2. Areas of non-deposition of t'

surficial clay (northwestern portion of the site where substantial volumes 0' are

,. _--pr.~sent), and breaches in the clay unit caused by building:oters, founds ,s,

and'underground utilities facilitate the movement of volatile ;:.;oil gases that omanate

from the free product plume along the southern portion of the site.

The base of the surficial clay unit also has some impact on the movement of

free product, as evidenced by SCAPS sampling performed at location SG-6 (MW9). SCAPS fluoresence intensity panel plots at this location indicated the presence

of hydrocarbons at a depth of 23-25 feet belov! grade, 4 feet below water table

elevations in this portion of DPSC. Free prooLJct was confirmed to exist at this

depth by hydropunch sampling. The occurrence of free product beneath the clay

and below the water table may be attributable to historical fluctuations in the water

table. Figure 5-5 illustrates the mode of occurrence of free product at sampling

location SG-6. Once this former SCAPS location was converted into a groundwater

monitoring well, groundwater and free product trapped beneath the surficial clay

unit was free to migrate into the wellbore, where it was detectable with an interface

probe. The true depth of free product at this location, however, is within the

vadose zone and not at water table elevations as measured by interface probe

readings subsequent to well installation.

2727ANL001 5-4
T ..., .. · ~. .. .. :r

r-~.PlJUPING LE.VEL

w. BEARING ,.... SCREEN

STRAlUJ"I •': GRAVEL ALTER

1

.s. .

... .

:t:;. •.

'~"F''--'-'=''A IIiK .

J3l-

--4_

-_. 1-~~Lf.VEL

EllV. +15.50 I CCltaEfE: sua ON GRADE

- 5.00 I aAY, sot.lE CINDERS

-10.00 I IlRC7*'N aAY, SOUE CINDERS 12.5

-15.00 I aAY, SAND, CRA\U 17.0

• - 20.00 I aAY, SAND CRA\U .t BOUI.DERS 26.5

- 25.00 I ClAY, SNIJ, CRA\U .t IlOUUlfRS

- 26.50 I WA1ER LE.W.

- 3O.Oll I FIHE TO COURSE SAND, ClAY & CRAW. 35.0

- 35.00 I BRCMN SAIl) & Ul1lE aAY 41.0

-40.00 I UEDIUU BROWN SAM) .t umE CUY 41.0

- 45.00 I \tRY FINE BROWN SAIl) .t aAY 49.0

- 50.00 I UEIlMI IlROWH SAND. TRACE OF CUY

- ss.oo I IBIUU BROWN SAM), TRACE OF aAY

- 60.00 I WEJIMI BROWN SAND, 'tRACE OF CUY 62.0

- 65.00 I COARSE EIRCMN -SAN) 66.0

-70.00 I COARSE BROWN !Wi) & aAY 74.0

-75.00 I scasr

HOlE - DFORYA11ON HAS BEEN VJ<EH FRO\&

IWJJNGER co. TEST DATA 1941

o 4'

! , , , !

SCALE

<C

I

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--.

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,....

I

23rd STR I

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II

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--1-----

I

I

,

I

-.---

''eI·SIII':.c.

1900 FROST ROAD, SUIT[ "0

BRISTOL. PA 19007

(215) 788-71144

DATE: 05/15/95 DPSC LINES OF SECTION SCijE NOTED FIGURE 5-1 B I--~D~E~FE~N~S~E~P~E~RS~O~N~N=EL:--:S~U:::PP~O~R:;"T-;C~E~NT~E~R~--fD~WG~.B't=-:(;"G.1i""B.--'
r

\ ( 

.................. " 

tAW-GO

FARRINGTON MEMER

(LOWER AQUIFER)

__________________________

BEDROCK

MW-200 '.

........... .. 

REGIONAL CROSS S

20

-20

-60

-40

-80

-tOO

''eleMOI-:'c.

1900 FROST ROAD, SUITE 110

BRISTOL. PA 19007

(215) 788-7844

,FIGURE 5-2

1fQRTH-SOUTILREGIONAL GEOLOGIC CROSS SECTION

DEfENSE PERSONNEL SUPPORT CENTER

PHIlJ\DELPHIA, PA
r-")

A(NW) 

50

S77 S76 S81 S98 MW19 MW17 011 

F

NA FP 1.06 FP 0.00 

40

MW16 

30

FILL 

20

SP

SP

10

GP 

i 

\

---

o(MSl) 

GP/SP

-10 

-20

-30

+ UTHOlOGIC CONTACT

I 3lOW PERMEABIUIY STRATA

fP APPARENT fR£E PRODUCT THICKNESS

( m FREE PRODUCT LAYER

USl UEAN SEA LEVEL 

WATER TABLE ='1= RELfAINING ABBREVlAllONS ARE uses SYMBOLS
548

-

S

010

o 200'

GRAPHIC SCALE

MW2 OH13

FP-.95

SP

fP • FREE PRODUCT

USL • S£A 1M!.

RBWUR OF ABBREWJ10NS AA£. uses SYUBOLS

SP

549 550

+. LITHOLOGIC CONTACT

f-----3 - LOW PERU9SIUTY STRATA

• FREE PRODUCT

=WATER TABlE -=V=

a.

= =

sw

547546

2D

1D

D SP

40

30

-30

50

-2D

-1D

(
/ .......--.."'.

,

C

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fll

fll

SP

fll

---------

20

-10

--

----:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-: g. -:-:----

10 -k--

SO

-20

- _ _ _ _ _ APPNlf;NT WA1ER IDn

----- WAlER TI8£

APPNIOO PROOUCI' IDn

SG-I/IlfI-II SG-72/

msr WAlER DICOUHIDlED

IIGS. ROSE 1011 BGS.

un 19.12 UI10lbnr 

1f.l1 "\PTP 

IMlRO PUNaf SCRfIH 2Y - 2S' IMlR

20' SCREDI ZONE 15' 

{

STEX 1.5mg/l STEX 

SG-08 we 1.0 r1igft.. we 

DfF 4.5 mill ..J

L- CONTNiIIIWfT COHCOORAmi

PRlJ'ORIIotW. TO aAY .

nmm RIJ llEPJH

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DIP 20.00

orr 21.71

3420 mg/t

we 15240 rTigA.

DIfF 11870 miJl

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Ul-I

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orr 21.71

1120 mg/t

sc-D1 we 11465 mil).

DfF 8345 mill

1S- SCREDI ZM

I .salmID IfTERWL

• APPmNT AlEE PRlDJCr n.ac.es

E:-:-:-:l - LOW PmEJBllIY stRATA

1900 FROST ROAD, SUITE 110

BRISTOL. PA 19007

(215) 788-7844

FIGURE 5-5

MW-7 -' MW-l0 GEOLOGIC CROSS SECTION

DEFENSE PERSONNEL SUPPORT CENTER

PHIlADELPHIA. PA
\"

(--

c

TABLE 5-1

GENERAL SUBSURFACE STRATIGRAPHY

SOUTHEASTERN PHILADELPHIA. PENNSYLVANIA

FORMATION DESCRIPTION THICK· DEPTH BELOW

NESS LAND SURFACE

(BSL)

FBI & Concrete Fdl & Concrete 0-22 feet Varies

Recent A1lwium Dark gray mud. sUt and fine sand . 5-10 feet 2-5 feet

Pleistocene Deposits Brown to gray sand and gravel composed of 10-50 feet ·10·15 feet

medium to coarse grained. angular to

rounded quartz sand grains. with sandstone.

sUtstone. chert, quartzhe, and mica schist

size boulders (Becomes thicker towards the

north of DPSC).

Cretaceous Deposits

Upper Clay Member Gray sandy clay; whh red. white. and yellow 2-5 feet 15-20 feet

__ clays interbedded (Exists on the southeast

portion of DPSC).

Old Bridge Sand Ught gray to yellowish brown, medium to 20-50 feet 20-30 feet

Member coarse grained sand. with sUt, clay. and . " .. gravel beds common at the base of the

aquifer (Thins out and becomes non-existent

towards the north; Pleistocene Sand

becomes dominant formation). . .

Middle & Lower Red and white clay with some sand beds 10-30 feet - . 60-80 feet

Clay Members present In the Lower clay formation.

Farrington Sand Yellow. gray. and brown coarse sand with 10·50 feet 50·100 feet

Member gravel which grades -Into a fine to medium

grained sand composed of a small per·

centage of white clay beds.
L

TABLE 5-2

USCS CLASSIFICATION OF

GEOTECHNICAL SAMPLES

BORING SAMPLE DEPTH LASlO FIELD 10

NUMBER (FT.)

MW-9 18-20 CL, brown CL, light gray

MW-10 18-20 CL, gray CL,gray

MW-11 8-10 CL/ML, brown, green, gray CL, gray

.28-30 SP, brown GP, brown

MW-12 14-16 SM, gray SP, grayish brown

MW-13 20-22 GM, gray GP, brown

MW-14 12-14 SPISM, brown - ..--=- :z:-,.. SP, brown

MW-15 26-28 SPISM, brown SP, brown

MW-16 4-6 ML, brown. green, gray CL, brown

16-18 SC, brown SPIGP, brownish orange

MW-17 24-26 SC, brown SP, brown

MW-18 18-20 CL, brown SM

MW-19 4-6 CL, brown, green, gray N/A

10-12 CL,brown SC, brown

MW-20 .1&'18 SC, gray SP, light brown

MW-60 72-74 SW-SM, brown GP, gray

-t-Mw-2OD . 70-72 GC, grayish brown GC. gray

. MW-CSX1 40-42 CL, brown ML/CL, light brown

MW-CSX2 . 36-38 CL, brown CL, yellowish brown
l

L

TABLE 5-3

DATA SUMMARY: GEOTECHNICAL SAMPLES,

SHELBY TUBES PERMEABILITY TESTING

BORING SAMPLE DEPTH HORIZONTAL VERTICAL

NUMBER (FT.) PERMEABIUTY PERMEABIUTY

(CM/SEC) (CM/SEC)

MW·11 8-10 1.3 x 10-6 2.0 X 10-6 .

MW·16 4-6 2.4 x 10.6 2.0 X 10.6

.MW·19 4-6 6.6 x 10-7 1.3 X 10-6
c

6.0 HYDROGEOLOGY'

An evaluation of the movement and accumulation of free product and the

migration of dissolved phase contaminants in the aquifer system at DPSC must be

preceded by an understanding of site geology and groundwater flow patterns. The

interpretation of geological data from soil borings advanced at DPSC indicates that

the aquifer is heterogeneous. In addition, there are numerous underground utilities

in the vicinity of the installation which may exert significant influences on local flow

patterns and free product/contaminant migration.

A relatively large regional and site specific database exists to support the

mapping of aquifers and groundwater flow patterns at DPSC. Regional data is

available from a text entitled Groundwater Resources of the Coastal Plain Area of

Southeastern Pennsylvania, published in 1961 by the Pennsylvania Geological .

Survey. Also included in the hydrogeological database are data from 25

groundwater monitoring wells that have been installed at DPSC, 4 wells at the

SEPTA maintenance garage east of DPSC, and approximately 36 wells at the Sun

Oil Company refinery south yard, located west of DPSC. . - ,.

6.1 Regional Hydrogeologic Framework

Regional hydrogeologic data for the Southeastern Pennsylvania Coastal Plain

indicates the presence of two distinct aquifers underlying the DPSC site. The

upper aqUifer is unconfined and composed of undifferentiated Recent and

Pleistocene sands,silts and clays. This aquifer ranges from 40 to 60 feet in

thickness, and regional groundwater flow within this unit is to the southeast. Two

Cretaceous age clay units, referred to as the Middle and Lower Clay units,

separate the upper aquifer from the Farrington Sand. At DPSC, the Middle Clay

directly overlies the Lower Clay and cannot be distinguished from the latter. The

combined thickness of these two clays reaches 60 feet; thus this stratigraphic

. interval functions as a confining unit for the underlying Farrington Sand. The

Farrington Sand is characterized as an artesian aquifer and overlies the

Wissahickon Schist. This aquifer.locally attains a thickness of up to 20 feet.

Regional groundwater flow patterns in the Farrington are updip to the northwest.

Substantial groundwater withdrawals from this aquifer in the mid to late 1900s has

eliminated artesian conditions in many parts of Philadelphia and has likely resulted

in modifications to regional flow patterns.

6.2 AqUifer System at DPSC

Regional mapping indicated that distinct upper and lower aquifers were

. present at DPSC. However, hydrogeological data acquired during the Phase I RI

revealed that this is not the case. Monitoring well MW-20D, drilled in the

northwestern corner of DPSC, penetrated what appeared to be the upper and

Farrington Sand aquifers. A well couplet was installed at this location with MW-20

screened in the upper aquifer and MW-20D screened in a stratigraphic unit

2727ANL001 6-1
interpreted as the Farrington S~-:d. The confining unit between the upper and

lower aquifers in this area wa~ lty nine feet in total thickness,

At the southwestern part of DPSC, a second deep well, MW-8D, was installed

adjacent to the existing shallow well screen in MW-6. These two wells also form a

couplet. MW-8D was drilled to a depth of 88 feet below grade and did not

encounter any confining units within the footage penetrated. This well was drilled

well below the anticipated depths of the Middle and Lower Clay units.

Regional geologic data and the lack of any confining clays in MW-8D and the

thin nature of this unit in MW-20D suggest that the Middle and Lower Clay units

have been truncated by a nonconformity along the western and central portion of

DPSC., The location of thesa deep wells within the League Island Trough suggests

that the clay units which nc;>rmally confine the Farrington Sand aqJifer may have

been eroded by a northwest-southeast trending paleochannel. Based on the

limited deep stratigraphic data from MW-8D, MW-20D, and the former process

supply well in Building 8, it is believed that a single unconfined aquifer underlies the

DPSC site. This aquifer probably attains a maximum thickness of about 80 feet.

6.3 AqUifer Characteristics

Modeling of the extent of cc:1tamination for volumetric calculations and

pathline analyses required the quantification of a number of key geological and

hydrogeological parameters including hydraulic gradient, hydraulicconduetivities,

aquifer thickness, and porosity. C,qillary pressure relationships at air-oil and oilwater interfaces were generated from the SPILLCAD me::: ~I, using gradation curves

derived from sieve analyses of aquifer soil samples. n.. iatter soil parameters are

important in calculating in situ free product volumes.

6.3.1 Hydraulic Gradient

Hydraulic gradients at DPSC and the adja;:;ent Sun Oil Company refinery

were determined from the mapping of synoptic free product and water table

measurements taken on March 1 and 2, 1995. The preparation of adjusted water

table elevation maps served as the basis for hydraulic gradient interpretation and

measurement

An adjusted water table elevation map for the combined DPSC, Sun Oil

Company refinery south yard, and SEPTA garage is presented in Figure 6-1; the

DPSC water table elevation map is presented in Figure 6-2~ The preparation of

~ese maps involved several important assumptions:

• Measuring point elevations all needed to be normalized to National

Geodetic Vertical Datum (NGVD); this process involved the resurveying

of Arco benchr: " ks used to establish wellhead elevations at the .~

refinery, and th~ . ,;plication of conversion factors to both the Sun wells )

2727FINL001 6-2
•

J

and monitoring wells MW-1 through MW-7, which were installed by

Environmental Science and Engineering prior to Phase I of the RI.

Specifically, elevation adjustments of +0.3 feet were made to monitoring

wells MW-1 through MW-7 at DPSC, and elevation adjustments of 1.13

and 1.05 feet were made to refinery south yard wells surveyed with

reference to Arco benchmarks S-1 and S-6, respectively.

Piezometric data for one well in the Sun Oil Company refinery's south

yard and one of SEPTA's wells, S-IT and SMW-4, respectively, were

omitted from the water table elevation map. The water table elevation in

S-IT, indicated to be 22.3 feet above MSL, is considered to be an

outlier, since the range in water table elevations for the entire south yard

was observed to be -2.29 to 8.65 feet above MSL SWM-4, the .

westernmost of the SEPTA wells, was also considered a data outlier;

this well had an elevation of 3.41 feet above MSL in contrast to a range

of 0.19 to 1.69 in the southeastern portion of DPSC. The anomalous

elevation data associated with these two wells may be attributable to

either perched water conditions or insufficient well development.

L

Where apparent regional hydraulic gradients exist on the DPSC and Sun Oil

Company refinery south yard sites, respective gradients of 0.004 and 0.008 were

measured. However, there are two anomalies which exist that affect steeper or

flatter gradients at both sites. One such anomaly, shown in Figure 6-1, is in the

vicinity of 26th Street, east of the refinery south yard and west of the Conrail

property. The anomaly occurs as a north-south trending swale and a steepening

of the hydraulic gradient to 0.01. A sewer line that runs in a northerly direction

along 26th Street at depths below the water table is apparently functioning as a

subsurface drain in this area This underground utility is causing a local steepening

of the hydraulic gradient and is also affecting groundwater flow to deviate from

regional patterns.

Another anomalous hydraulic gradient, occurring along the southern·portion

of the DPSC site, is shown in Figure 6-2. At this location, the hydraulic gradient

has flattened out substantially, decreasing to less than 0.001. This anomaly is

interpreted to be associated with a hydraulic conductivity change in the upper

aquifer. Geologic mapping of a ·Iow permeability surficial clay unit indicates that the

clay intersects the water table along the southernj southwestern, and southeastern

portions of DPSC. This clay, along with the presence of a large (8' x 10'),

reinforced concrete sewer at water table depth, appears to inhibit the southerly flow

·of groundwater, creating a large groundwater mound. The location of this

groundwater mound is consistent with the occurrence of free product in the upper

aquifer; hence, the clay unit and sewer may also be causing free product to

preferentially accumulate in this area.

Vertical hydraulic gradients were measured in two shallow and deep well

couplets during Phase I of the RI. These couplets include MW-6/6D, and MW2727ANL001 6-3
20/20D~ located at th~ southwestern and northwestern parts of the site, :J

respectiVely. In both Instances, the measured vertical hydraulic gradients were

positive, indicating a net dO#rlward component of groundwater flow in the aquifer.

The vertical hydraulic gradient in MW-20/20D was measured at .07, while a

gradient of only .001 was observed in the MW-6/6D well couplet. The larger head

loss in MW-20/20D is probably due to the presence of a 9-foot thick clay unit

between the two well screens in that couplet. The positive vertical hydraulic

gradients suggest that it may be possible for dissolved phase contaminants to

migrate into the basal portion of the aquifer, particularly at locations where the

Middle and Lower Clay units are absent.

6.3.2 Hydraulic Conductivities

Hydraulic conductivities in the aqUifer at DPSC are moderate to low, largely

due to the significant amount of silt and clay matrix within the Recent, Pleistocene

and Cretaceous deposits. Hydraulic conductivities at DPSC were measured by

performing 22 separate slug tests. Data from these aquifer tests are presented in

Table 4-18. HydraUlic conductivities ranged from a low of 0.069 feet per day to a

high of 15.8 feet per day, with an average value of 3.81 feet per day. Although

only two monitoring wells, MW-6D and MW-20D, were screened in the lower

portion of the aquifer, a slight increase in hydraUlic conductivity appears to occur;

MW-6D had a measured hydraulic conductivity of 24.6 feet per day.

The most significant hydraulic conductivity variation in the aquifer UnderlYing]

'the DPSC site is the transition from a silty or well graded sand to a clay which

occurs along the southern, southwestern, and southeastern portions of the site.

Here, ·the aquifer hydraulic conductivity decreases abruptly from an' average of 3.81

feet per day to a range of 0.00283 - 0.283 feet 'per day. From this data it appears

that the water table aquifer is semi-confined in the southeastern corner of the site.

Hydraulic conductivity values for this' surficial clay unit were determined from .

permeameter analyses of Shelby tube samples taken as soil borings were

advanced during Phase I of the RI. The gradation from sand to clay at the

southern portion of the site, along with the presence of the east-west trending

Packer Avenue sewer immediately south of DPSC, effectively creates an east-west

trending cut-off to southerly (regional) groundwater flow. This phenomenon is

probably the cause of a large groundwater mound that is observed along the

southern portion of the site in Figure 6-2, the March 1, 1995 water table elevation

map. It is also believed to have affected the accumulation of free prodUct which

occurs within the same geographical area as the groundwater mound itself.

6.3.3' AqUifer Thickness

The stratigraphic relationships discussed in section 6.2 seem to indicate the

presence of what is essentially a single aquifer at DPSC. However, where the

Middle and Lower Clay units are developed (e.g., in the northwestern comer of the.-."

site), these units probably exert a significant influence on groundwater flow paths. _)

2727FINL001 6-4
l

.Vadose zone thickness at DPSC varies from approximately 40 feet where remnants

of this confining unit eXist; up to 80 feet in places where these clays have been

eroded away. .

6.3.4 Porosity

Due to the unconsolidated aquifer materials underlying DPSC, it is not

possible to obtain a truly undisturbed sample for porosimeter analysis. The

porosity of overburden materials, which are predominantly sand, silt and clay, and,

to a lesser extent, fill composed of ash, cinders, brick and ceramic materials is

estimated to be in the range of 35 to 40%. The siltier, matrix-rich portions of the

aquifer are probably in the low end of this range, whereas the poorly graded sands

and gravels may attain the upper limits of this range.

6.4 Groundwater Flow

_.:--:,......__.

The direction and velocity of groundwater flowpaths at DPSC were evaluated

using the measured and/or calculated values of hydraulic gradient, hydraulic

conductivity, and porosity discussed in Section 6.3. It is notable that while

interpretations concerning the direction and magnitude of groundwater flowpaths

are significant in analyzing the migration of dissolved phase contaminants, the

transport of free produd and.vaporous phase hydrocarbons may also be

controlled by the presence of numerous underground utilities and associated

.bedding/backfill materials.

6.4.1 Direction ofGroundwater Flow

Regional hydrogeological mapping for the southern Philadelphi~ .area

....._.inq.i~ates that groundwater flow in the vicinity of DPSC occurs primarily in a

southeasterly direction towards the Delaware River. However, as can be seen from

Figure 6-1, a number of local features ~ich exist in the vicinity. of.the site cause

anomalous groundwater floWpaths: .

• Groundwater in the western portion of the Sun Oil Company refinery

south yard flows in a westerly direction in response to a hydraulic

'. . gradient sloping towards the Schuylkill-River in that area

• Along 26th Street, groundwater flows both east and west due to the

presence of a deep sewer pipe at this location which appears to be

functioning as a subsurface drain. Groundwater elevation contours in

the vicinity of this sewer line behave similarly to those contiguous with a

gaining stream. The presence of this particular anomaly decreases the

potential for groundwater in the upper aquifer to migrate directly from

the refinery south yard into the DPSC site.

2727FINL001 6-5
,,

• An app:.~jent gro: .':" ':Jwater mound exists in the southern portion of

DPSC. This featw2!, believed to be associated with a significant

hydraulic conductivity change and the presence of a large reinforced

concrete sewer in that area, causes a deviation from regional flow

patterns. Groundwater at this part of the site flows east and west in

response to these subsurface barriers.

A process water supply well, formerly located in Building 8 in the east-central

portion of DPSC, has reportedly been abandoned. A sketch of this well is

presented :'1 Figure 5-1A Based on interviews with personnel from the facility's

Public WorKs Department, the well had not been operational since the early 1970s.

No data are available concerning well construction details, production rates, or

aquifer test data. It is possible that during the period when this well was active, its

cone of depression may have affected different groundwater f10wpaths than are

presently observed at this part of the facility.

The direction of groundwater flow in the aquifer at DPSC and contiguous

r'~eas is generally well understood. However, the extent to which other

:;'lderground utilities modify groundwater flow and a clear understanding of how

underground utilities function in the transport of free product phase petroleum

hydrocarbons has yet to be achieved.

6.4.2 Groundwater Velocity

Based on an average site hydraulic condUctivity of 3.14 feet per day, a range

in hydraulic gradients of 0.004 to 0.001, and an estimated porosity range of 35 to

40%, groundwater velocity in the aquifer underlying DPSC is less than a tenth of a

foot per day. Being composed of fluvial deltaic deposits, the aquifer is extremely

heterogeneous; therefore, it is probable that areas of both higher and lower

groundwater velocities exist. Areas of higher velocity may be present where coarse

channel fill is associated with fluvial deposits, while lower aquifer velocities may be

associated with overbank type facies. In any case, the velocity of groundwater

estimated using hydraulic conductivities derived from slug test data is subject to a

margin of error of approximately one order of magnitude and should be modeled

with that constraint in mind. Consequently, pump testing may be required to refine

the hydraulic conductivity values prior to subsequent remedial design.

2727FINL001 6-6
I ,

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"'-'

7.0 EXTENT OF CONTAMINATION· PETROLEUM HYDROCARBONS

Data acquired during Phase I of the RI was combined with existing data from

previous site investigations conducted at DPSC to determine the distribution of free

product and delineate the extent of soil and groundwater contamination. Since

most soil sampling conducted to date at DPSC focused on the massive

gasoline/diesel free product plume and underground storage tank subsurface

assessment, a substantial volume of analytical data exist from which to evaluate the

extent of subsurface soil contamination. Since most surface soil sampling has

been scheduled for Phase II of the RI, only a limited amount of surface soil

analytical data have been generated thus far. Some inferences may be drawn from

the Phase I PID screening of shallow soil horizons relative to the levels of petroleum

hydrocarbon contaminants that are likely to be detected during future surface soil

sampling. However, these interpretations must be considered strictly qualitative

until they are confirmed during Phase II sampling and analysis.

The distribution of free product in the aquifer'at DPSC has been accurately

established in north, west and easterly directions; the southern plume boundary"

off-site to the south of DPSC, has yet to be establi$hed, but as suggested in report

" sections 5 and 6, it is probably limited by hydraulic conductivity changes in the

aquifer and the presence of a large sewer line in that direction.

The areal extent of petroleum hydrocarbon related groundwater contamination

has been clearly established at DPSC, again with the exception of the southern

plumeboundaries~ The vertical extent of groundwater contamination has yet to be

defined; only two data points presently exist to define groundwater quality in the

lower portion of the aquifer. Therefore, no calculation of dissolved species

contaminant masses was attempted at this time. Recommendations for the

completion of delineation of the dissolved phase groundwater contaminant plume

are made in Section 14.2.

Certain key isoconcentration maps were developed for,assessing the

distribution of free product and extent of dissolved phase groundwater '

contaminants. These maps included free prodUct thickness, and TPH, BTEX, GRO,

ORO and benzene isoconcentrations. Their preparation is discussed in Section

7.2.

Selecting the appropriate maps to indicate the extent of petroleum ,

hydrocarbons in subsurface soils involved a review of the mapping objectives. The

primary Phase I objective is to differentiate between multiple releases which have

impacted site soils in an effort to associate these releases with their respective

sources. To accomplish this, isoconcentration maps were prepared to indicate

TPH concentrations in the depth intervals 0 - 8',8·15' and 15 - 30' below grade.

The rationale for selecting these intervals was to dissect TPH impacts which were

related to surface spills/releases, UST related releases and contamination

associated with the massive gasoline/diesel plume respectively. Depending on

2727FINL001 7-1
)

I I .

.

.-which final remedial aCti'::" objectives are established for the OPSC site, it is likely

additional mapping'w' warranted. It is suggested that the OPSC geochemical

database be retained ',:sk format for use in the preparation of additional

isoconcentration overlays.

7.1 DPSC Geochemical Database ..-- As a result of the numerous site investigations that have been performed to

date at DPSC, a substantial volume of analytical.data exist to support the mapping

of petroleum hydrocarbon contaminated 'media. Althou~ 1 collected over a pC"':'

of nearly seven years, mUCh, but not all, of the soil analytical data is considen.

co: ;:Jarable considering the primary mapping objective. Because different

hya;-ocarbons species were evaluated for various site characterization objectives,

the volume of data for certain parameters, such as ORO, is limited. G:-oundwater

analytical data have been developed from two separate investigations conducted

over four years. .; ~::ause these data are not time synchronous and since

groundwater conc-::ntrations are SUbject to significant variation with time, these data

are not considered comparable.

The OPSC geochemical database consists of soil and groundwater analyses

from four separate site investigationS. To date, 31? soil samples have been

collected at OPSC for \'arious petroleum hydrocarbon analyses, along with 43

groundwater samples, and eleven free product samples. A summary of the )

complete petroleum hydrocarbon sampling database is presented in Table 7-1. This

database supported the delineation of soil and groundwater contamination through

the application of a modeling software package.

7.2 SplllCADlII Data Assessment

In order to develop a conceptual site model of petroleum hydrc:~arbon

contamination, available soil and groundwater data were evaluated using the

SpiliCAD computer program. The objectives of the computer program'were to

develop a graphic representation of the distribution of free product contaminated

.groundwater, petroleum contaminated soil, and groundwater contaminated with

dissolved phase hydrocarbons, and to estimate the volume of petroleum

hydrocarbons on the groundwater.table and contained in the soil.

The SpillCAD computer program utilizes a user-specified database to provide

a graphical reO:"'esentation of monitoring well and soil boring data contoured or

posted on a site map.' The program is able to handle free product contamination

as well as dissolved phase contamination; however, it does not distinguish between

multiple phases of free product contamination (e.g., oil and gasoline). The

program contains a number of analytical modules that enable quantitative

assessment of saill volume, contaminated soil volume, volume of free product, and

dissolved and t 3e product contaminant migration. Th::. following sections provide

a brief summa')' of the site-wide program parameters, including input data,

2727F1NL001 7-2
(

f,,--

program assumptions, and uncertainties and limitations, and a discussion of the

program results on'a media-specific basis.

7.2.1 Conceptual Model

7.2.1.1 Input Data

The conceptual model was developed using a CAD-generated site map and

the soil and groundwater data from the DPSC geochemical database described in

Section 7.1 (A copy of the database is included in Appendix M). It contains the

following modules: locations, monitoring wells, soil borings, fluid level data, well .

concentrations, and soil concentrations. The soil database had to be modified

from the format specified in the program to account for site conditions. SpillCAD

evaluates soil in the vertical direction based on the depth of the sample with

respect to the ground surface. In order to account for large differences in site

elevations and provide for a more accurate depiction of soil contamination in the

vertical direction, the value of sample depth input to the program was normalized

with respect to mean sea level. In addition, because several sampling points were

located below mean sea level, a factor of 8.57 was added to the depth of each

.sample with respect to mean sea level to eliminate negative values from the

program.

The model domain encompasses the entire DPSC site and a portion of the

contiguous properties and was set to the following coordinates:

Lower left corner

. Upper right corner

2717400 east

2720900 east

221700 north

224200 north

The following soil properties required to generate contours and calculate soil

volume were entered into the SpillCAD program:

Parameter Assigned Value Method of Determination

Kc::w 3.6 ftlday Slug test data

I/J . 0.4 Representative soil properties

Sm 0.215 Calculated from grain size data

a 2.846 1ft Calculated trom Kc::w

11 1.446 Calculated from grain size data

Snr 0.235 Calculated from Sm

Snn 0.051 Calculated from Sm

2727F1NLOOl 7-3
I I '

I

, 1

The fc;!:.~"iing fluid properties requirE:, to generate contours and calculate free

prc<",,;ct volu;'ne were input into the SpillC/:.D program:

Value

_..".,.Parameter Assigned Method of Determination

Prn 0.75 Measured

Prn 1.14 Weighted average (3 parts gasoline/1 part oiij

Pan 3.2 Weighted average (3 parts gasoline/1 part oil)

P nw 1.4 Weighted average (3 parts gasoline/1 part oil)

7.2.1.2 Uncertalntles/Umltatlons

The SpillCAD computer program is a valuable estimating tool for free product

contamination, but the program has a number of limitations that must be

'. considered when evaluating contaminant trends. Some of the program limitations

encountered and their impact on the data evaluation are presented below.

The SpillCAD computer program assumes constant conditions (e.g., hydraulic

conductivity) across the model domain in the horizontal and vertical direction. This

representation of site conditions does not provide the optimal depiction of

groundwater flow conditions and migration pathways. Due to this limitation the

pathline analysis and dissolved phase transport modules of the program were not

utilized. '

For the soil volume estimation modules the program, utilizes an averaging

'algorithm to estimate contaminant concentrations in the vertical direction. If only

one data point is available for,a given soil 'column, the concentration is assumed to

be constant throughout the column. This method of estimation provides a relatively

accurate representation of site conditions. Elevated results may be obtained for

depth intervals with only one data point This is not considered a drawback for the

DPSC site, because there are multiple data points in the vertical direction and the

depth intervals evaluated were ret'atively narrow.

The model is capable of conducting user-specified queries of the database

(e.g., all concentrations of TPH detected in groundwater). The queries can be

used to evaluate data trends or to generate data contours. When querying the

data for soil concentrations within a specified sample depth interval, the query will

report multiple concentrations in the vertical direction for each sample point, but

when contours are generated, only the first value encountered is recognized. For

example, if samples were collected every 2 feet to a depth of 10 feet, the contours

generated from a query of all soil data from 0 to 10 feet would use the data from

, ,~

'I )

r~\

, .._/

2727ANL001 7-4
f f

-i

the°to 2 foot interval and ignore the remaining data points. In order to minimize

the impacts of this program limitation, three sample intervals were established.

The maximum grid size allowed by SpillCAO is 26 by 26 (NOTE: this grid size

is unitless and indicates that maximum number of nodes that may be used in the

model domain). Using this maximum grid size resulted in a distance between

nodes of 140 feet in the x direction and 100 feet in the y direction. The relatively

large distance between nodes may result in a small overestimation of contaminant

volumes.

7.2.2 Soli Contamination

Available soil data for the site extends from a depth of 0 to 30 feet below

grade. As discussed above, in the query mode SpillCAD has certain limitations

.regarding the evaluation of data in the vertical direction. In order.to minimize these

impacts 3 soil depth intervals were established: _OJQ.8 feet below grade, 8 to 15

feet below grade, and 15 to 30 feet below grade. the 0 to 8 foot interval

represents surface soil impacts; the 8 to 15 foot interval UST related impacts; and

the 15 to 30 foot interval is indicative of water table and vadose zone

contamination. The following graphic models of the distribution of soil

'contamination were developed using the SpillCAO computer program:

• TPH in soils from a depth of 0 to 8 feet below grade

• TPH in soils from a depth of 8 to 15 feet below grade

• TPH in soils from a depth of 15 to 30 feet below grade

Queries attempted for BTE)(, GRO and ORO soil contamination in the depth

intervals 0 -8' and 8 - 15' below grade yielded little information because the

.. _....Q£I:~~ases were limited, and at locations where these analyses had beenperformed, these parameters were seldom detected. Copies of each.of the data

queries performed are included in Appendix M•.

Overlays generated for BTE)(, GRO and ORO soil contamination in the depth

interval 15 - 30' below grade were used exclusively for volumetric calculations. The

areal extent ofBTEX, GRO and ORO soil contamination in the depth interval 15'-30'

below grade very closely appro~mates the groundwater isoconcentration maps

developed for each of these petroleum hydrocarbon species. This outcome is not

surprising considering that this soil contamination is directly associated with the

massive gasoline/diesel present at the southern portion of OPSC. Therefore,

separate maps were not prepared from these particular Spillcad overlays.

7.2.3 Volumetric Estimates of Petroleum Hydrocarbon

Contaminated Media

The following quantitative analyses of soil contamination were conducted

using the SoilVol module of the SpillCAO program:

2727FINL001 7-5
• 1.. .Jlume of TPH contaminated s':.e., >500 ppm) from a depth of 0

t feet below grade was estimatL.: to be 19 !?78,027 cubic feet O.e.,

7',;." ,316 cubic yards).

• The mass of BTEX contained in soils from a depth of 15 to 30 feet below

grade was estimated to be 78,172 kg.

• The mass of BTEX contained in soils from depth ranges of 8 to 15 feet

and 0 to 8 feet was determined to be insignificant

• The volume of TPH contained in soil from a depth of 15 to 30 feet was

estimated tc 'Je 354,957 gallons.

• The mass aT GRO contained in sails from a depth of 15 to 30 feet below

grade was estimated to be 433,728 kg.

• The mass of ORO contained in soils from a depth of 15 to 30 feet below

grade was estimated to be 242,709 kg.

• The volume of TPH contained in s~il from a depth of 0 to 8 feet was

estimated to be 81,825 gallons.

No attempt was made to generate volumetric estimates of contaminated

groundwater due to the w''"'/ limited data available to delineate its vertical extent

(only two deep well screen intervals were sampled during the Phase I Rl).

7.2.4 Free Product Distribution

Using the SpillCAO progr~,;., a free p:oduct distribution map was developed

based on the fluid level data collected by Versar in March 1995. The.free product .

distribution does not distinguish between multiple phases of free product (e.g.,

gasoline and cJ); it is merely a representation of total product thickness. In order

to obtain a quantitative estimate of the volume of free product on the groundwater

table, the WellVol module of the SpillCAD program was run. The results of this

analysis indicated that the volume of fiee product is 1,176,691 gallons. This value

may be slightly high, because the mO:isl domain extends beyond the southern

property boundary, resulting in the extrapolation of data in this region.

7.2.5 Groundwater Contamination

The following dissolved phase groundwater contamination maps were

developed using the SpillCAD program:

• TPH in groundwater

• BTEX in groundwater

• Benzene in groundwater

_..========================

-

I

j

27..:.7ANL001 7-6
L.

• .GRO in groundwater

• ORO in groundwater

Contaminant distribution trends in groundwater were used to provide a framework

for the evaluation of potential transport pathways. Actual pathline analysis was not

performed as part of the Spillcad Modeling effort. Spillcad's particle tracking

module assumes homogeneous, isotropic aquifer conditions; however, during

Phase I of the RI, it was determined that this assumption was inconsistent with

subsurface conditions observed at DPSC. Copies of the data queries used to

generate the groundwater maps listed above are included in Appendix M.

7.2.6 Evaluation of Spillcadlll Maps

Overlays generated by Spillcad supported model-derived calculations of the

volumes of contaminated media presented in sections 7.2.2 and 7.2.3. In addition,

the maps developed from each of the Spillcad queries were used in the attempt to

differentiate between mUltiple releases, by comparin·g their· spatial relationships and

chemical characteristics. Whenever possible, inferences with respect to the

probable location of source areas were drawn from ~ese maps. The limitations

associated withSpillcad-generated soil isoconcentration maps are discussed in

section 7.2.1 under Uncertainties/Umitations. It is believed that the selection of

three discrete intervals for the preparation of these maps leads to an accurate

representation of the distribution of TPH-contaminated soils at DPSC. The

definition of narrower intervals for mapping would overly constrain the geochemical

database by eliminating areal coverage (e.g., mapping an interval of TPH soil

contamination as limited as the increment 10-12 feet below grade would create too

small a database query to generate interpretable contour patterns).

7.2.6.1 Free Product

Approximately 54 acres of the OPSC site are underlain by free product

According to chemical analysis, the free product consists of a 2:1 to 3:1 mixture of

gasoline to .diesel fuel with a specific gravity of 0.75. The Wellvol module of

SPILLCAD calculated art In situ volume of approximately 1.2 million gallons of free

product. Since the southern model domain boundary extends slightly beyond the

DPSC property line, it is estimated that in situ frEle product volume for OPSC proper

is at least one million gallons. This volume represents extractable petroleum

hydrocarbons only and does not include irreducible hydrocarbons.

ActuaJ free prodUct thicknesses range from 0 to 1.84 feet. (TPH free product

thickness contours are presented in Figure 7-1.) Three separate maximas are

evident; one (1.84') between monitoring wells MW-3 and MW-5 near building 28 in

the southwestern portion of the site, a second (1.84') located just to the west of

MW-7 and just to the south of building 9, and a third (1.44') in the vicinity of MW-11

immediately to the east of building 14. The latter two free product maxima form the

apparent axis of a southwest-northeast trending free product plume, while the first

2727FINL001 7-7
I f 1

.n -1 represent a separate, secondary axis and possibly a different migration

paulway. Sf oj on the overall trend of free product occurrence at DPSC. these

hydrocarbon:.. ..:ppear to be entering the site from somewhere to the south and

probably near the southeast comer near MW-7. Based on this data, it is believed

that the most logical pathway is flow of the free product from the west along the

Pollock Street/Packer Avenue sewer with a lateral entering the site from the

southeast representing the primary transport mechanism onto DPSC.

7.2.6.2 TPH In Solis > 500 ppm (Depth Interval 0 • 8')

Mapping of TPH isoconcentrations in the depth interval 0-8' below grade was

performed to evaluate the location and nature of possible near surface releases.

TPH soil isoconcentrations for this depth interval are presented in Figure 7-2. The

occurrence of petroleum hydrocarbons in the surficial soils at CPSC appears to be

sporadic and limited in area However, several factors must be considered in the

evaluation of this Spillcad overlay: _.~ _"_

• The geochemical database for shallow soil samples is limited in

comparison to the deeper soil horizons, particularly to those collected at

or near the soil/water interface. The lack of significant PIC readings in

split-spoon samples screened in the upper 8 feet of soil during the ES&E

and Phase I RI (Table 4-7) investigations tend to support a sporadic

occurrence of TPH in this soil horizon.

• A cut-oft concentration of 500 ppm was chosen for use in the

development of this Spillcad overlay for two reasons: 1) this concentration

represents the PACER clean-up standard for an older release and 2) a

significantly lower cut-off concentration would result in the identification of

-_..... _.. _ trace amounts of TPH which are likely to be ubiquitous at DPSC because

the siting of sampling locations was constrained to the numerous roads

and parking areas at this facility. .

\;'

TPH isoconcentrations >500 ppm occur in two distinct areas at DPSC; one in

the north central portion of the site and a second in the vicinity of MW-3 near the

southwestern part of the facility. The TPH occurrence in the north central portion

of the site is associated with a release from DPSC's 6,000-gallon UST located along

Oregon Avenue. This release is identifiable only by EPA Method 418.1; analysis of

soil gas chromatograms from soil ~amples collected at this location did not confirm

with gasoline, diesel, kerosene. or lube oil patterns. Hydrocarbons detected here

represent a weathered fuel, probably diesel in nature.

Possibly the two TPH maxima located along Aleshire Street, just north of the

eastern portion of Building 3 and at Building 8, are related to the Oregon Avenue

release. The location of fuel lines associated with the 6.000-gallon UST are

unknown. From north to south, the three isoconcentration maxima in this area

have areal extents of approximately 1, 0.75. and O.S-acres, respectively. However, -)

/

2727ANL001 7-8
I I

, :

the actual extent of TPH contamination associated with the Oregon Avenue UST

location has not yet' been delineated.

The source of TPH concentrations >500 ppm in the vicinity of the central

portion of Building 8 is unknown. TPH levels >500 ppm in the vicinity of MW-3,

located south of the western portion of Building 4, may be related to a documented

release from corroded diesel fuel lines that formerly existed in the general area.

7.2.6.3 TPH In Solis >200 ppm (Depth Interval S'-1S')

Mapping of TPH isoconcentrations in the depth interval 8'-15' was performed

to assess the nature and level of petroleum hydrocarbon contamination associated

with the depth interval in which all of the DPSC USTs are or were formerly located.

Due to the low levels of TPH in this depth interval, the cut-off concentration for

mapping was adjusted downward to >200 ppm. TPH soil isoconcentrations for

this depth interval are presented in Figure 7-3.

Three TPH isoconcentration maxima were revealed in the Spillcad overlay;

one in the northwest comer of DPSC, a second in the southeast section, south of

Building 9, in the immediate vicinity of MW-7, and a third in the north-central part of

the site near Oregon Avenue. The northwest corner of DPSC, where TPH

concentrations reach a maximum of 225 ppm, is approximately four acres in area

and characterized as having extensive fill deposits reaching a maximum thickness

of 22'. The physical characteristics of these fill deposits are not well known and

possibly the TPH contamination is directly associated with these fill materials. At

this location, TPH. contamination is in the diesel organics range and, as indicated in

the ORO groundwater isoconcentration overlay, is consistent with the presence of

low level ORO concentrations in groundwater that also occur at this location. This

low level ORO soil contamination was characterized during the DPSC Fuel

Contamination Study as an ·older" release, unrelated to the massive TPH

contamination associated with the free product plume along the southern portion of

DPSC. .

The second TPH concentration maxima occurs at the location of MW-7, where

TPH was detected at a level of 236 ppm, and is approximately 3 acres in size.

MW-7 is in close proximity to the former 10,OOO-gallon DDT USTs located at the

southeast portion of the DPSC. This soil contamination. is related to petroleum

hydrocarbons which were previously used as a carrying agent for the DDT and that

may have been released during overfill of these tanks•

. A third area of TPH concentration occurs in the north-central part of DPSC

along Oregon Avenue. A TPH level of 9,800 ppm was detected in a soil sample

collected at a depth of 14 feet near the easternmost 10,OOO-gallon diesel UST. The

extent of this contamination has not yet been fUlly delineated. Its areal extent·as

indicated by the SPILLCAD overlay may be slightly exaggerated.

2727FINL001 7-9
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-,

/.2.6.4 TPH In Soils >500 ppm (Depth interval 15 • 30')

The mapping of TPH isoconcentrations in soils in the depth interval 15'-30'

provides a good indication of the distribution of petroleum hydrocarbon

contamination at and below the soil/water interface. A cut-off concentration of 500

ppm was selected to identify TPH concentrations exceeding PADER Clean-up

standards and to focus on maximum TPH concentration trends and their likely

sources. The total area within the 500 ppm cut-off isoconcentration at the southern

portion of DPSC is approximately 31 acres. TPH sol1 isoconcentrations fDr this

depth interval are presented in Figure 7-4.

Three TPH isoconcentration maxima are evident on this Spillcad overlay. Two

occur along the southern portion of DPSC, both shOWing axes which have a

southwest-northeast trend. The highest observed TPH soil concentrations exceed

levels of over 12,500 ppm near the eastern part of Building 9 and continuing into

the vicinity of Building 14. A secondary concentration maxima occurs to the west

of Building 30, where maximum concentrations reach 4500 ppm. These high TPH

levels are correlated with high GRO, ORO and BTEX levels, all of which are directly

associated wrth the massive gasoline/diesel free product plume that occurs in the

area The orientation of these maximum contaminant isoconcentration axes

together with the abrupt decrease to levels below 500 ppm in a northerly direction

suggest the presence of a source located somewhere south of the facility. There is

a significant ct-:Tslation between isoconcentration trends in this overlay with the _'_)

p"x:iuct thickness trends presented in Figure 7-1.

The isolated TPH occurrence in the northwestern comer of DPSC attains a

maximum concentration of only 850 ppm and is limited to the diesel organic range.

The low levels of TPH contamination in this area and its discontinuity with the high

1r1s of TPH ab:lg the southern portion of the site suggest that it is related to a

(' "3nt source, possibly to the fill materials known to be present in the

r 'iwestem comer of the facility. '

7.2.6.!? Groundwater Isoconcentration Maps

Versar developed five separate groundwater isoconcentration maps from

Spillcad overlays for correlation with the free product thickness map and to further

evaluate probable contaminant transport pathways and source areas:

1. TPH concentrations >0.02 ppm (Figure 7-5)

2. BTEX concentrations >0.005 ppm (Figure 7-6)

3. Benzene concentrations >0.005 ppm (Figure 7-7)

4. GRO concentrations >0.5 ppm (Figure 7-8)

5. ORO concentrations >0.5 ppm (Figure 7-9)

The occurrence of TPH, BTEX and benzene concentrations exceeding method

detection limits was limited to the southern portion of DPSC and appears to

2727ANL001 7-10
represent a single continous plume. The occurrence of GRO and ORO

groundwater contamination 'showed a slightly broader areal extent a~ut OPSC.

Therefore, a higher cut-off concentration was chosen for mapping in an attempt to

isolate separate source areas.

The following maximum concentrations and areal extents were observed for

each of these petroleum hydrocarbon species:

Species Maximum Concentration ewell) Areal Extent

TPH 0.4 ppm (MW-1A) 54 acres

BTEX 57.5 ppm (MW-6) 54 acres

Benzene 37'ppm (MW-6) 57 acres

GRO 170 ppm (MW-15) 62 acres

ORO 170 ppm (MW-14) 71 acres .,

The isoconcentration maps for TPH, BTEX and benzene all correlate very

closely with the distribution of fr~~. product and TPH contaminated soil >500 ppm

Onterval 15'-30') as shown in Figures 7-1 and 7-4, respectively. The geometry of

gro!Jndwater contaminant plumes for these hydrocarbon species is very similar and

shows no evidence of an upgradient source area O.e., there is no continuity of

these groundwater contaminants into the northern portion of OPSC). The areal

extent of TPH, BTEX and benzene groundwater contaminants appears to be

consistent with a dissolution of free product plume whose location is restricted to

the southern portion of the installation. Based on these observations, the source

for the free product plume and associated dissolved phase groundwater

contaminant plumes appears to lie somewh~re to the south of OPSC.

The areal extent of GRO and ORO groundwater contamination is also

consistent with the spatial distribution of the free product but covers a slightly larger

area than the free product, TPH, BTEX and benzene plumes. This is due to the

occurrence of low levels of GRO and ORO detected in hydropunch and monitoring

well locations in the northwest portion of OPSC. The occurrence of low levels of

GRO and ORO groundwater contaminants to the northwest may be attributed to

the presence of similar contaminants detected in the extensive fill deposits in that

area. The isolated character of the ORO groundwater contaminant plume indicated

in Figure 7-9 indeed suggests that it is unrelated to the massive free product plume

to the south.

In summary, there appear to be two distinct areas of groundwater

contamination that are discernible in the aquifer underlying OPSC: one associated

with the massive free product plume developed along the southern portion of the

2727FINL001 7-11
facility, and a second, unrelated occurrence of DRO that may be attributable to

contaminated fill materials present at the northwestern comer of the site.

2727F1NL001 7·12
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TABLE 7-1

DPSC GEOCHEMICAL DATABASE" SUMMARY

SITE ASSESSMENT DATE SOIL GROUNDWATER PARAMETER

SAMPLES SAMPLES

DPSC Fuel ContamInation Study 1988 78 None TPH

Environmental Science and EngineerIng Report 1991 65 7 TPH - California 

Site Characterlzatlori for the New Admin/ADP Bldg. 1992 37 4 TPH,BTEX

Phase I RI Report· 1995 29 25 TPH, GRO, ORO

DPSC Gasoline Station UST Closures . 1994 28 • - None TPH, GRO, ORO

Oregon Avenue UST Closures 1994 13 None TPH,GRO, ORO

Rogers Street and Bldg. 8 UST Closures 1995& 1994 8 None TPH, BTEX, OR

DDT UST Closures 1994 55 7 TPH, Pesticides

* Eleven free product samples were also coliected and analyzed for TPH, GRO, ORO and BTEX.
L

8.0 EXTENT OF CONTAMINATION FROM DDT UNDERGROUND

STORAGE TANKS

KEMRON Environmental Services, Inc. (KEMRON) conducted a limited DDT

investigation at the Defense Personnel Support Center, Philadelphia, Pennsylvania.

The investigation was conducted in response to the discovery of DDT .

contamination in the vicinity of former underground tanks used to· store DDT and in

consideration of contamination potentially present beneath the former DDT mixing

room floor and in floor drains in and around Building 9 of the complex: KEMRON's

characterized and delineated the extent of DDT contamination to identify areas that

might require further investigatiqn and/or remediation as part of the BRAC closure

process.

The investigation identified elevated levels of DDT above Land Ban

requirements in soils collected from three borings south of the DDT UST excavation

pit and beneath the concrete slab floor of the mixit;!g room. Based on the DDT

concentrations detected in these samples, the affected soils would require

incineration. Groundwater also was found to contain low levels of DDT. The

highest concentration of DDT found in the water samples was 1 microgram per

liter, suggesting minimal migration of the DDT from the impacted soils.'

Future work should include an investigation to determine if the contamination

found beneath the f1oor·in Building 9 extends beyond the building. Such an

investigation would focus on the potential subsurface routes of contamination,

notably the floor drain, which runs a long distance before interfacing with a sewer.

The investigation should be designed to determine if contamination resulted from

exfiltration from the drainage piping.

... __...._.. A separate report documenting the findings of the DDT investigation was

prepared and submitted to the ACOE. The complete text of the DDT Investigation

Report is appended as Attachment 1.

2727FINL001 8·1
(

'---

9.0 DATA SUMMARY AND COMPARISON - NON-PETROLEUM RELATED

PARAMETERS

9.1 Subsurface Soils

A total of 29 subsurface soil samples were collected during Phase I RI

monitoring well installation. With the exception of MW-18 and MW-20D, two:''--

samples were collected at each monitoring well location. Because investigation of

groundwater and the free product plume were of primary interest, samples were

generally collected at and just above the soil/water or soil/free product interface.

Near surface soil samples were not collected during the Phase I RI. Therefore. a

detailed discussion of potential contaminant migration from overlying soils can not

be presented. In general, concentrations of organic constituents were greater in ,

the deeper samples. No obvious pattern existed for inorganic constituents with

respect to sample depth.

9.1.1 Volatile Organic Compounds

Volatile organic compounds (VOCs) detected in subsurface soil samples

are primarily considered petroleum related O.e., BETX). Certain samples exhibited

extremely high concentrations of petroleum-related contaminants. In these

samples, sample dilution and the associated high detection limits resulted in data

reported in less than values exceeding potential ARAR standards for the nonpetroleum related compounds. The presence or absence of non-petroleum related

compounds cannot be evaluated in these samples.

Non-petroleum related VOCs detected in subsurface soil samples consisted

of methylene chloride (7.3 to 920 ppb), acetone (14 to 10,000 ppb), and 2-

butanone (20 and 21 ppb). The 2-butanone was detected in only two samples.

Methylene chloride and acetone detection was more common, in 12 and 19

samples, respectively. Both methylene chloride and acetone are common

laboratory chemicals and can be an indication of laboratory contamination,

although the levels of these two compounds appear too high to be attributed to

solely to laboratory or field sampling contamination. Trip blanks routinely contained

acetone, but not methylene chloride; field equipment blanks did not contain either

acetone or methylene chloride.

9.1.2 Semi-Volatile Organic Compounds

A total of 21 ~emi-volatile organic compounds (SVOCs) were detected in

subsurface soil samples. Ten of the 21 SVOCs were detected only in the samples

collected from monitoring well location MW-10. A review of boring logs for MW-10

revealed that both samples from MW-10 were collected from fill material. Based on

2727FINL001 9-1
this information, contaminated fill is suspected to be the source of the SVOCs at ~\

location MW-10. The SVOCs detected only. at MW-10 are summarizedOelow:

Acenaphthylene

Benzo(a)anthracene

Benzo(k)f1uoranthene

Dibenzo(a,h)anthracene

Acenaphthene

Chrysene

Indeno(1,2,3-cd)pyrene

Benzo(g,h,i)perylene

Anthracene

Benzo(b)f1uoranthene

Two other SVOCs were detected at MW-10 and one additional monitoring

well location. Dibenzofuran was identified in sample MW-15 (S-18) and

benzo(a)pyrene was detected in sample MW-9 (S-7).

Several SVOCs were detected primarily at locations identified in boring logs

as exhibiting petroleum odors and found to contain petroleum-related VOCs.

These SVOCs are constituents of diesel and fuel oil range petroleum products and

are considered to be related to the underlying petroleum contamination of

groundwater. Naphthalene, 2-methylnaphthalene, and phenanthrene were the most

commonly detected of these SVOCs. Fluorene, f1uoranthene, and pyrene were

detected less often.

The three other SVOCs detected were di-n-butylphthalate, bis(2-

ethylhexyl)phthalate, and di-n-oetylphthalate. No definitive pattern could be

determined for the occurrence of these compounds. However, phthalates are

known to be common laboratory and equipment related contaminants, and may

not be representative of site conditions. These compounds were also found in field

equipment blanks at concentrations approximately equal to these found in the field

samples.

9.1.3 Inorganic Compounds

In general, inorganic constituent concentrations in subsurface soils occurred

within ranges expected for a site with various soil types. However, one pattern was

apparent Samples collected from monitoring well locations MW-9, and particularly

MW-10, exhibited the highest concentrations for 16 of the 23 inorganic parameters

monitored. Lead was observed to be 1 to 2 orders of magnitude greater at MW10. Other differences were less discrete. The elevated metals concentrations in

the southeast corner of the site appear to correlate directly to the presence of

extensive fill material observed at location MW-10. The ranges of inorganic

parameter concentrations across the site are presented in Table 9-1.

9.1.4 Pesticides/PCBs

The detection of pesticides/PCBs in subsurface soils was limited to low

concentrations of three compounds,04,4-DDT, delta-SHC, and endrin. Sample MW9 (S-8) exhJbited 7.9 ppb of 4,4-DDT. Sample MW-15 (S-18) exhibited 8.1 ppb of -)

2727FINL001 9-2
( ..

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delta-BHC and 8.1 ppb of endrin. No other sample was found to contain

pesticides or PCBs. .

9.2 Groundwater

Although groundwater samples were collected from 25 monitoring wells

during the Phase I RI primarily to document petroleum plume related

contamination, the samples were analyzed for full TCl and TAL parameters to gain

additional information on overall groundwater quality beneath the site. The findings

of the groundwater sampling are discussed in the following subsections.

9.2.1 Volatile Organic Compounds

VOCs detected in groundwater samples are primarily considered petroleum

related O.e., BETX). Certain samples exhibited extremely high concentrations of

petroleum-related contaminants. In these samples, dilution was required in order to

conduct the analysis within the calibrated range of the laboratory instrumentation.

Following analysis of the diluted samples, the corresponding dilution factor is

applied to both the measured concentrations and to the detection limits for non-

.detected parameters. This results in high detection limits for non-detected

parameters, which are reported as "less than" the detection limit value. In many

cases, this high detection limit exceeds potential ARAR standards for the nonpetroleum related compounds. Consequently, the presence or absence of the

non-petroleum related compounds in these diluted samples cannot be evaluated

because of the "masking effect" of the petroleum hydrocarbon related compounds.

Non-petroleum related VOCs detected in groundwater consisted of

methylene chloride (31 and 62 ppb), acetone (15 to 110 ppb), tetrachloroethene (6

ppb), chlorobenzene (49 ppb), and styrene (63 ppb). Methylene chloride and

acetone, considered potential laboratory contaminants, were identified in 2 and 3

samples, respectively, and were also found in the associated trip blanks.

Tetrachloroethene, chlorobenzene; and styrene were each identified at one sample

location, at levels slightly exceeding detection limits.

9.2.2 Semi-volatile Organic Compounds

A total of 11 SVOCs were detected in groundwater samples collected during

the Phase I RI. The most commonly detected SVOCs (naphthalene, 2-

methylnaphthalene, and phenanthrene) are constituents of diesel and fuel oil range

petroleum products. Petroleum-related VOCs were detected at all locations

exhibiting concentrations of these three SVOCs. Four randomly detected phenol

compounds may also be petroleum-related contaminants. The phenols were

detected at low concentrations in groundwater wells located in the southern portion

of the site, an area impacted by free petroleum product.

2727FINL001 9-3
Pyrene and benzoic acid were each detected at single locations, at

concentrations slightly exceeding detection limits. Di-n-butylphthalate and bis(2-

ethylhexyl)phthalate were detected in various samples without a discernible

pattern. Di-n-butylphthalate was detected in a laboratory blank and bis(2-

ethylhexyl)phthalate was identified in an equipment blank. Thus, the presence of

these compounds in the site environment is questionable.

9.2.3 Inorganic Compounds

The detection of potentially elevated levels of inorganic constituents in

groundwater was limited. No inorganic constituent was detected at extremely

elevated concentrations in total or dissolved samples. Since background has not

been established for the site, a generic discussion of inorganic concentrations is

provided. This discussion focuses on the dissolved concentrations, as they are

believed to better represent the characteristics of the aquifers.

Few parameters exceeded maximum contaminant levels (MCLs) or

secondary MCLs (SMCLs) in filtered 'samples collected across the site. However,

concentrations of iron and manganese exceeded SMCLs at most monitoring well

locations. This finding corroborates literature information that suggests shallow

groundwater in the Philadelphia area has been impacted by discharges from

sew.ers and other sources of surface runoff and wastewater. These discharges

have resulted in an overall degradation of groundwater, with iron, manganese,

magnesium, chloride, and sodium the primary contaminants. The site-specific

analytical data do not provide evidence of site related contamination for any of

these constituents.

Aluminum concentrations exceeded the SMCl at 5 locations. Aluminum

was detected at 5.5 ppm in MW-20, an order of magnitude greater than the next

highest concentration. lead exceeded the MCl at one location, MW-4 ,(0.094

ppm). This concentration was one order of magnitude greater than the closest

concentration detected. No other' constituent was detected in excess of MCLs or

SMCLs in filtered groundwater samples collected during the Phase I RI.

9.2.4 Pesticides/PCBs

Five pesticide compounds were detected in groundwater at levels slightly

exceeding detection limits. No PCBs were detected in the analysis of groundwater

samples. .

Endosulfan sulfate was detected in samples MW-6D, MW-20D, and an

equipment blank (EB-2). Concentrations ranged from 0.13 ppb to 0.19 ppb.

Alpha-BHC was detected in sample MW-11 at 0.13 ppb. Beta-BHC was detected

at 0.07 ppb in sample MW-12. Delta-BHC was detected at 0.5 ppb in sample MW5. Sample MW-4 was found to contain 0.69 ppb of 4,4-DDE. .~)

2727FINL001 9-4
(

'--

TABLE 9-1

RANGES OF INORGANIC CONSTITUENTS

IN SUBSURFACE SOILS

CONSTITUENT RANGES OF CONCENTRATION (PPM)

Aluminum 2,700 to 20,000

Antimony 10 U to 2,100

Arsenic 0.45 U to 14

Barium 13 to 430

Beryllium 0.51 U to 7.0

Cadmium 0.51 U to 3.8 U

Calcium 220 to 35,000

Chromium 7.9 to 38

Cobalt 3.2 to 21

Copper 6 U to 610

Cyanide 0.54 U to 4.3

Iron 4,400 to 50,000

Lead 1.9 to 1,200

Magnesium 570 to 6,800

Manganese 29 to 2,100

Mercury 0.25 U to 1.3

Nickel 4.5 U to 150

Potassium 160 to 1,300

Selenium 0.2 U to 0.39

Sodium 52 to 500

Thallium 0.25 U to 0.39

Vanadium 6.6 to 42

Zinc 13 to 220

U - Not Detected; the number preceding the U indicates the detection limit.
10.0 DATA VALIDATION·

The analytical data for the DPSC Phase I RI were generated by Kemron

Environmental Services, Inc., a ACOE Missouri River District (MRD) certified

laboratory, in accordance with the U.S. EPA's Contract Laboratory Program (CLP)

protocols. The CLP protocols specify rigorous O.e., EPA Level IV) quality

assurance (OA) and quality control (OC) requirements and define limits that ensure

a high probability of detecting invalid data for either all or the majority of the

measurement systems.

Laboratory data quality objectives (DOOs) for this project were developed in

the Project Operations Work Plan to ensure the validity and certainty of analytical

results. In addition, the CLP requirements for laboratory analyses provide a high

level of confidence that the data are reliable. The data generated from this Phase I

RI will ultimately be used for site characterization, source identification O.e., the

determination of potentially responsible parties), environmental monitoring, risk

characterization, engineering support studies, and the analysis of potential

remediation strategies. Therefore, indicators of data quality, including accuracy

and precision, were reviewed and monitored closely by the analytical laboratory in

accordance with the CLP protocols.

.The following indicators were used to define quality levels for analytical

activities:

Accuracy:

Precision:

Representativeness:

Completeness:

. 2727FINL001

A measurement of the bias in a system. Accuracy was

assessed through the evaluation of the percent recoveries

associated with reference samples O.e., matrix spikes,

surrogates, continuing calibration checks).

A measurement of the reproducibility of data under a

specified set of conditions. Precision is a quantitative

measure which assesses the variability of a data set in

reference to the calculated average value. Precision was

assessed by the evaluation of the day-to-day variances in

matrix spikes and was monitored using control charts.

A qualitative measure used to determine the degree to

which obtained data correlated to the population sampled.

The evaluation of this parameter was assessed through

field auditing and OA review of SOPs and Work Plans.

The percentage of measurements evaluated and judged to

be valid measurements. For this project, the criteria was

set in the range between 90-100%.

10-1
Comparability: A qualitative measure assessing the confidence with which

, data sets obtained for similar samples and sample

conditions can be correlated. This parameter is dependent

upon the accuracy and precision of the analytical

measurement.

Quality control samples were analyzed throughout the Phase I RI/FS to

assess these data quality indicators and to ensure that the sampling and analytical

systems used in support of project activities were in control. Quality control

samples for this project consisted of field QC samples (e.g., trip blanks, equipment

rinsate blanks, and drilling water), as well as laboratory QC samples (e.g., method

blanks, matrix spikes/matrix spike duplicates, surrogate spikes, and continuing

calibration standards).

Trip blanks were prepared by the laboratory and were collected to indicate

any potential field contamination associated with volatile organic sampling. Trip

blanks were included at a frequency of one per cooler during the course of volatile

organic sampling.

Equipment rinsate (field) blanks were used to provide information on the

extent of potential cross-contamination at the site. Equipment rinsate blanks were

collected at a frequency of one per· sampling equipment type per day by rinsing the

sampling equipment with deionized water and collecting the rinsate directly into the

appropriate sample container.

The water source used during drilling activities must be free of any

contamination that would compromise sample integrity. Therefore, one sample of

the drilling water was also collected and analyzed for EPA TCl parameters and

TPH.

The reliability of all data generated during the Phase I RI/FS, including the

field QC sample results, was evaluated as part of the data validation process. Data

validation is a set of computerized and manual checks applied to analytical data at

various appropriate levels of the measurement process to ensure that the data are

complete, precise, accurate, and legally defensi.ble. Validated data result from the

.consistent application of a rigorous QA/QC program. The data validation process

for the Phase I RI at the DPSC included, but was not limited to, a review of sample

preservation and holding time requirements, analytical system operational

parameters, calibration data, QC sample data (e.g., method blanks, continuing

calibration standards, field blanks, etc.), statistical tests, and manual checks of

hand calculations.

Data validation commenced with each analyst and continued until the data

were reported. Every analyst was responsible for internal QC checks for each'

sample and for implementing corrective action when outliers were identified. Thus,

most data validation occurred at the moment the data were generated. At the

2727FINL001 10-2
(

"-

conclusion of each analysis, the data were independently. reviewed by the

laboratory manager and/or data quality manager prior to approval and release.

Data assessment techniques used by the laboratory staff included routine quality

control checks and system audits. The independent review of data packages was

performed to ensure compliance with specified analytical QA criteria; data reduction

procedures; data reporting requirements; and required accuracy, precision, and

completeness measures. The following items were reviewed: ..,.--

• Sample holding times;

• Documentation that the analytical results are in control and within the

calibrated ranges;

• Documentation that data and calculations, including mass spectra and

chromatograms, were checked by a reviewer who was not involved in

the performance of sampling, analysis, or data reduction;

• Calibration documentation for methods and instruments, including the

results of calibration and continuing calibration standards,

chromatographic acceptance criteria, and mass spectrometer tuning

criteria;

o Routine instrument checks (calibration, control samples, etc.);

• Documentation on traceability of instrument standards, samples, and

data;' .

• Documentation on analytical methodology and QC methodology;

• The potential presence of interferences in'analytical methods (check of

method blanks and surrogate spike recoveries);

• Documentation of routine maintenance activity to ensure analytical

reliability; and

• Docume~tation of sample preservation and transport.

As a result of the data validation process, data were approved and released,

rejected, or qualified. Data qualifiers are ·red flags· that may indicate potential

problems with the data, so qualified data were evaluated carefully prior to use.

Data qualifiers are used to denote several potential laboratory problems including,

but not limited to, the following: sample matrix interferences, contamination of

method blanks O.e., laboratory introduced contamination), unacceptable duplicate

precision, unacceptable spike recovery, estimated concentrations O.e., for

tentatively identified compounds or for analytical parameters that are detected at a

concentration below the quantitation limit), and samples that required dilution to

2727FINL001 10-3
bring the sample concentration within the linear calibration range. Unqualified data -)

that are released by the analytical laboratory meet all of the prerequisite crata

quality objectives fOf this project and are assumed to be accurate, precise, and

technically defensible.

Upon receipt of the laboratory-validated data package, the Versar project

manager spot-checked sample holding times, laboratory and field ac sample

results, and data qualifiers to ensure that the data met the DaOs established for

the project. This internal review represented an additional, secondary data

validation step to ensure that all data used in this report was valid and reliable.

Auxiliary data produced for internal records and not reported as part of the

analytical data package included the following: laboratory worksheets, laboratory

notebooks, sample tracking system forms, instrument logs, standard records,

maintenance records, calibration records, and associated quality control records.

These sources document data reduction and are available for inspection during

audits to determine the validity of data.

The New England District (NED) of the ACOE is also conducting

independent data validation. However, their report was not available for inclusion in

this report.

2727FINL001 10-4
11.0 PRELIMINARY EVALUATION OF FREE PRODUCT AND

ASSOCIATED DISSOLVED PHASE CONTAMINANT PATHWAYS

The preliminary evaluation of contaminant pathways at DPSC is limited to

petroleum hydrocarbons in Phase I of the RI. Pathways for other contaminants of

concern will be assessed during Phase II of the investigation. Our primary concern

is the origin of the massive gasoline/diesel free product plume that underlies most

of the southern portion of the DPSC site. The physical conditions that caused free

product to accumulate in the aquifer have been discussed in report Sections 5.0

and 6.0. The focus of this chapter is the f10wpaths along which the hydrocarbons

migrated to reach their present point of accumulation.

Several steps were involved in determining possible and then probable

petroleum hydrocarbon migration pathways in the vicinity of DPSC, including: .

• A review of the nature and relative volumes of known hydrocarbon

releases at the DPSC site and at contiguous off-site locations.

• Preparation of a semi-regional water table elevation map to use as a

basis for visualization of groundwater f10wpaths (see Figure 6-1).

• Evaluation of free product and associated petroleum hydrocarbon

species distribution maps generated by SPILLCADlII to define plume

boundaries.

• Comparison of soil gas "signatures" which may be associated with free

product occurrence at DPSC and contiguous sites.

• Inspection of utilities drawings, specifically sewer lines, whose

dimensions and depths are such that they are likely to be in contact

with free product as defined from Phase I mapping of free product at

DPSC or previous mapping of off-site plumes.

To determine the origin of the massive gasoline/diesel free prodUct plume

present underlying much of the southern half of the facility, Versar is employing

reverse particle tracking. Once groundwater f10wpaths in the vicinity of DPSC are

understood, it is possible to extrapolate particle tracks from known areas of

petroleum hydrocarbon groundwater contamination in an upgradient direction back

towards their original source. The "corrido~ through which free product and

contaminated groundwater migrated in the aquifer should bear some residual

petroleum hydrocarbon contamination, particularly within the silty and clayey

formations that comprise the aquifer at DPSC. At the same time, utility corridors

must also be considered as potential migration pathways. It is clear from available

groundwater monitoring reports that utilities have played a role in free product

migration within certain portions of the Sun Oil Company refinery south yard. The

migration of vapor phase hydrocarbons can also be influenced by the presence of

2727FINL001 11-1
underground utilities. As possible pathways are identified and ruled out by process ')

of elimination, potential source areas where specific types of releases have

originated are indicated and can be confirmed through file searches.

11.1 Soil Gas Fingerprinting

Soil gas surveys often closely reflect the areal distribution and physical

characteristics of a groundwater contaminant plume or, as in the case of DPSC, a

free product plume. The key to obtaining a good correlation between soil gas and

free product distribution is collecting soil gas samples as near to the soil/product

interface as possible. The extensive development of a surficial clay unit in the

vicinity of DPSC causes an "attenuation" or filtering of the soil gas signal.

Therefore, the comparability of soil gas data to actual free product characteristics

decreases in proportion to the distance between the soil gas sampling depth and

the depth of the free product. At DPSC, soil gas samples were generally collected

below the surficial clay unit within 5 to 10 feet 01 iQe.free product plume. As a

result of these sampling depths, the active soil gas survey performed at the

beginning of Phase I field activities provided a very good approximation of the

location of the underlying free product plume.

To the extent that a good correlation is achieved between soil gas

concentrations or flux, the soil gas characteristics or "signature" can be a useful

tool in tracking the boundaries of a plume. This process is commonly referred tOi

as "fingerprinting.u Ideally, the chemical fingerprinting of separate hydrocarbon .~

releases for correlation purposes is accomplished through direct sampling and

analysis of free product and/or dissolved phase contaminants from the plume.

Such fingerprinting analyses were not planned and implemented in Phase I of the

RI. Soil gas data comparisons, while less accurate than direct prodUct analyses,

.- ---.§.lj.lt provide a good initial perspective on common constituents of spatially

sepiirated free product plumes.

11.1.1 Active Soil Gas Surveys and Data Comparisons

11.1.1.1 Description of the Active Soil Gas Survey Performed at DPSC

An active soil gas survey was performed on-site from September 26 through

October 21, 1994. A van-mounted 1/2u stainless steel probe connected to hollow

stainless steel sections was hydraulically pushed down to a depth of 10 to 14 feet

below ground surface (bgs). When the probe extension reached the desired

depth, it was disconnected from the hydraulic hammer, and the probe and the

extension rods were purged with a vacuum pump. Soil gas extracted with the

vacuum pump was sampled prior to the pump, using a syringe. Soil gas was

analyzed in the field by gas chromatography (GC) for benzene, toluene,

ethylbenzene, total xylenes (BTEX), and total VOCs. Field analytical results are

shown on Table 4-1.

2727FINL001 11-2
(

Soil gas sampling was performed throughout the OPSC site at 82 locations

as shown on Figures 4-1 through 4-3. As evident from the these figures, a plume·

of soil gas seems to be concentrated towards the southern half of the site. This

correlates very well with the free product plume, Figure 7-1. The soil gas survey

revealed comparatively low levels (2 to 10 ppm) of total VOCs in the northern half

of the site and along its western boundary, except at SG-63 (85 ppm).

Comparatively higher levels of BTEX in soil gas samples at SG-01 through SG-04,

SG-D7, SG-09, SG-10, SG-14 through SG-18, and SG-70 are interpreted to

represent a gasoline signature associated with the free product plume identified in

that area. Table 4-1 shows a summary of soil gas sampling results.

11.1.1.2 Description of the Active Soil Gas Survey Performed at the Sun

Site

Target Environmental Services, Inc., of Columbia, Maryland, performed a soil

gas survey at the Sun site in July 1988. To collect the samples, a 1/2 inch

diameter hole was advanced to a depth of 2 feet using a slide hammer. The hole

was then purged of the ambient air, a stainless steel tube was inserted to the

bottom of the hole and sealed from atmosphere. After purging again, a soil gas

sample was withdrawn, collected, and sent for laboratory analysis.

Soil gas samples were collected at more than 250 locations on the south

yard. Total VOCs and BTEX were detected ranging from not detected (NO) to 305

ppm and NO to 1.5 ppm, respectively. Concentration of methyl tertiary butyl ether

MTBE/pentane ranged between NO and 44 ppm. Most of these locations

indicated high MTBE concentration, which is a gasoline additive and pentane which

is a gasoline component. .This may be indicative of presence of either gasoline or

gasoline components is soils.

The soil gas survey revealed that the highest concentrations of total VOCs

were detected around the site perimeter, along the west side of 26th street, and in

another localized area on the north side of Philadelphia gas works. These soil gas

concentrations are consistent with the occurrence of free product in the vicinity of

26th street sewer. .

11.1.1.3 Data Comparison

In the September 1994 soil gas survey conducted at OPSC, total VOCs and

total BTEX were detected at concentrations up to 29,975 ppm and 10,625 ppm,

respectively. MTBE and pentane were not specifically analyzed for at OPSC. At

the Sun site, total VOCs and BTEX ranged from NO to 305 ppm and NO to 1.5

ppm, respectively. Concentrations of MTBE/pentane ranged between NO and 44

ppm.

The highest soil gas concentrations were detected on the southern part of

the DPSC site, which is consistent with the occurrence of the mapped free prodUct

2727FINL001 11-3
plume in that area. At the Sun refinery south yard, the highest soilgas)

concentrations were' detected at the eastern perimeter along 26th Street, which is

also consistent with a free product plume known to be present at that location.

At DPSC, BTEX concentrations detected in the soil gas samples are

consistent with the hydrocarbon species detected in the free product samples,

which bear a mixed gasoline/diesel signature. No chemical analyses for

characterization of the free product existing at the Sun site have been performed.

However, the detection of BTEX in the groundwater samples from two monitoring

wells located along the 26th Street sewer suggests that the soil gas composition

exhibits some similarity to free product and dissolved contaminant plume chemical

signatures. The comparatively low levels of BTEX in soil gas at the Sun site could

be due to the fairly shallow soil gas sampling depth for that survey. At DPSC, soil

. gas data were collected at 10 to 14 bgs, approximately 5 feet above the mapped

free product plume. At the Sun site, soil gas data were collected at 2 feet bgs, at

least 16 to 18 feet above the groundwater or free product plume.

Soil gas sampled at DPSC was not'analyzed for MTBE and pentane.

However, various soil gas samples at the Sun refinery south yard exhibited high

concentrations of these parameters (up to 44 ppm), which are characteristic of

gasoline additives. A partial list of former products in the south yard made

available by Sun Company representatives (Atlantic Richfield Company, partial

inventory list along 26th street, dated January 5, 1981) shows that various gasoline )

components and gasoline have been stored in the past in storage tanks 27, 28, 37,

38, 39,128,129, 178, 179, 190. Other tanks in the south yard stored kerosene,

naphtha, furnace oil, etc.

11.1.1.4 Conclusions

Based on the limited soil gas data available, it is only possible to make some

broad comparisons between survey results for the DPSC and Sun sites. There

appear to be possible compositional similarities between the free product at DPSC

and that at !he Sun site; the occurrence of BTEX concentrations in soil gas

analyses at both sites indicate the presence of gasoline or gasoline components in

the free product released in these areas. Also, the detection of MTBE, which is an

additive in gasoline, appears to confirm the presence of gasoline or gasoline

components in soils on the Sun refinery south yard site.

11.1.1.5 Umitations to Data Comparison

Various constraints must be placed on the comparison and interpretation of

active soil gas survey data from DPSC and the Sun Company refinery south yard:

• The two soil gas surveys occurred 6 years apart.

)

2727FINL001 11-4
(

r,

•. The depth of'soil gas sample collection at DPSC was 10 to 14 feet bgs,

whereas' at the Sun site was 2 feet. In the latter case, soil gas

chemistry may not correlate as closely to subjacent free product

characteristics.

• Soil gas sampling locations at the Sun Company site were limited to the

.perimeter of the facility, whereas on the DPSC site, the soil gas ..........

sampling grid was uniformly distributed across the entire site.

11.1.2 PetrexlII (Passive), Soil Gas Survey

A passive soil gas survey was also planned and implemented during Phase I

of the RI. The objective of this supplemental soil gas survey was to perform a

principle component analysis of free product head space samples from each onsite well and correlate their respective mass spectra signatures to soil gas data

collected from a specified sampling grid. Unlike an active soil gas survey, the

passive survey measures soil gas flux as opposed to actual soil gas

, concentrations. The active survey measures instantaneous soli gas concentrations,

while the passive survey measures flux across a period of several weeks. The

latter type of survey, therefore, provides more of a time weighted average of soil

gas species trends and is less susceptible to varying atmospheric conditions.

The output from Petrex's principle component analysis is referred to as

"similarity mapping.II A detailed explanation of the procedures involved during the

generation of these maps may be found in the Petrex report entitled Findings of the

Petrex Soil Gas Survey Performed at the Defense Personnel Support Center in

Philadelphia, Pennsylvania. This report is presented in Appendix Q. In principle

component analysis, mass spectra data from free product head space samples are

correlated to a computer library of petroleum hydrocarbon signatures. Once a

"fingerprine for a given petroleum hydrocarbon mixture has been identified, this

fingerprint serves as a framework for comparison of soil gas data collected from a

pre-planned sampling grid. The preparation of similarity maps then indicates

portions of the study area where the best correlations have been achieved between

individual petroleum hydrocarbon species or the complete hydrocarbon mixture.

These maps often reveal the source or pathway from which free prodUct or a

dissolved phase contaminant plume originated or migrated.

The Petrex sampling grid was.modified from the DPSC Rl work plan

specifications on two separate occasions. Initially, the survey was structured to

compare soil gas data along the western, southern, and central portions of the

facility. At that stage of planning, the reasoning was that free product was already

known to exist along the southern and central portions of the site and that one of

the most likely migration pathways was from the northwest. This assumption was

based on hydraUlic gradient data indicating groundwater flowed in a northwest to

southeast direction across the DPSC site.

2727FINL001 11-5
The review of SCAPS data and hydropunch sampling results, both ~)

completed before the Petrex survey was performed, indicated an apparent lack of

free product along DPSC's western property boundary. Based on these findings,

the proposed Petrex sampling grid was reconfigured. The revised grid included the

southwestern portion of the DPSC site and the northeastern portion of the Sun Oil

Company refinery south yard, both known areas of free product occurrence.

SUbsequent discussions with Sun Oil Company representatives failed to achieve

rights of access to conduct that part of the Petrex survey which was to be

performed within the refinery area.

The Petrex grid was finally re-established to cover the DPSC site proper in a

regular grid pattern. It was reasoned that free product or individual hydrocarbon

species migration patterns might become apparent through similarity mapping.

Work plan modifications to the originally proposed Petrex sampling grid are

presented in Appendix Q. .

The maps generated from the Petrex survey are presented in Appendix Q

and include benzene, toluene, ethylbenzenejxylene flux maps, and similarity maps

for gasoline character, fuel oil character, and free product character. The following

trends were observed with respect to each individual map:

• Benzene Flux Map: This map shows a northwest-southeast trending

pattern of high soil gas flux values.

• Toluene and Ethylbenzene/Xylene Flux Maps: These maps both

show' a broad area of soil gas flux maxima along the southern portion of

DPSC and a linear trend to soil gas on the northern half of the site.

• Gasoline and Fuel Oil Character Similarity Maps: 80th maps show

broad areas of similar contamination at the northwest and north-central

portions of the site with minor inqications of this signature in the

southeastern and south-central parts of DPSC. '.

• Free Product Character Similarity Map: This map reveals two

separate areas with signatures analogous to those associated with head

space analyses performed on actual free product samples from DPSC

monitoring wells. These areas o.ccur at the northwest and southeast

portions of the installation.

The interpretation of Petrex soil gas flux and similarity maps was preceded

by a review of DPSC site characteristics that may have influenced survey results, as

follows:

• A surficial clay unit exists at DPSC that may have an attenuating effect

on soil gas transmissivity, thus decreasing flux values measured in )

2727FINL001 11-6
(

,,-.

•

•

•

Petrex collector tubes emplaced at a sampling depth of approximately

1.5 to 2, feet below grade.

The clay unit is thickest along the southern portion of the site and is

entirely absent in the northwest part of the site, an area occupied by as

much as 22 feet of fill materials.

Shallow petroleum hydrocarbon contamination is known to exist in the

north-central portion of DPSC, where a release has been documented

from one of three underground storage tanks closed at the Oregon

Avenue location. This contamination is likely to influence passive soil

gas flux measurements.

Innumerable underground utilities exist beneath the streets at DPSC,

most running in an west-east direction. Some of these utilities may

influence the migration of vaporous phase contaminants.

L

The following conclusions have been drawn from the Petrex survey results:

• The northwest-southeast trends to benzene flux and free product

similarity maps could be indicative of a free product and dissolved

phase contaminants that are migrating from northwest to southeast

along regional groundwater f1owpaths. However, this interpretation is

not consistent with soil and groundwater sampling results that show

neither free product, nor gasoline related dissolved contaminants, at the

northwest portion of the site. The northwest-southeast trends to

benzene flux and free prodUct similarity maps are more likely related to

the migration of a vapor phase plume from southeast to northwest.

These volatiles apparently originate from the free product plume along

the southern part of the site and migrate along the base of the surficial

clay unit into an area of extensive fill at the northwestern comer of

DPSC.

• The broad fuel oil character signature in the north-central portion of the

site is probably caused by a combination of factors, including the

migration of diesel fuel constituents along the previously described

vapor migration pathway; soil gas migration related to the Oregon

Avenue UST release; and low level diesel-related petroleum

hydrocarbon contamination in the fill area at the northwestern corner of

the site. '

• Unear trends to toluene and ethylbenzenejxylene flux maxima may

relate to the preferential migration of soil gas along underground utilities

in the north portion of the site.

2727FINL001 11-7
Because of the geological characteristics of DPSC, the Petrex survey has

limitations with respect to the direct tracking of free product phase hydrocarbons.

Specifically, the surficial clay layer and the paving throughout the site may be

retarding the vertical migration of the vapor phase. However, the technology

appears to be a good tool for evaluating and tracking vaporous phase

contaminants. This type of survey may prove beneficial in future phases of work,

when vapor phase pathways must be delineated for risk assessment objectiVes

using a low profile sampling technique. It may also be possible to utilize the Petrex

method to track free product migration along major sewer lines through a deeper

emplacement of soil gas collector tubes. .

11.2 Free Product Migration through Direct Flowpaths through the

Unconfined Aquifer

The water table elevation map, TPH soil concentration map for the interval

15'-30' below grade, and free product distribution map presented as Figures 6-1,

7-4 and 7-1, respectively, together with the groundwater isoconcentration maps for

each petroleum hydrocarbon species (Figures 7-5 through 7-9) served as the basis

for evaluation of migration pathways of these contaminants.

Groundwater flow along the western DPSC boundary line appears to be

influenced significantly by the water table elevation anomaly that runs parallel to

26th Street. This anomaly may be attributable to a deep sewer line in this area that

is functioning similarly to a subsurface drain or interceptor trench. Groundwater

flowpaths in the area of this swale-like pattern of elevation contours track towards

26th Street, indicating that free product releases originating within the northeastern

portion of the Sun Oil Company refinery south yard would be likely to move in a

southerly direction, semi-parallel to 26th Street. Groundwater and fluid particles at

water table depth are less likely to track in a strict northwest to southeast (regional

flow) direction from the northeast portion of the refinery south yard across the

western DPSC site boundary. Free product releases and dissolved phase

contaminants in the shallow portion of the unconfined aquifer originating in the

northeastern part of .the refinery south yard would be expected to migrate in a

southerly direction, towards the Pollock Street/Packer Avenue sewer lines. Areas

of known free prodUct presence in the refinery south yard are described in Section

12.2.

East of DPSC, near the S,EPTA maintenance garage,·groundwater flowpaths

approach regional patterns. Flowpaths along the northern half of the SEPTA

garage are to the south and shift to easterly near the southern portion of the

SEPTA property. At present, there do not appear to be any flowpaths in the vicinity

of the SEPTA facility that track towards the DPSC. However, it is possible that past

operation of the former process water supply well located in Building 8 may have

caused a cone of depression with a subsequent temporary reversal of hydraulic

gradient, causing groundwater near the northern portion of the SEPTA facility to

flow towards the DPSC. If this cone of depression and hyraulic gradient reversal

)

---

)

2727FINL001 11-8
(

were not present, groundwater flowpaths would be expected to emulate current

conditions. According to DPSC Public Works personnel, this well has not been

active since the early 1970s. Releases documented with respect to the SEPTA

facility are discussed in Section 12.3.

Groundwater particles originating north of Oregon Avenue, DPSC's northern

property boundary, generally track to the south onto the DPSC site. In the

northwestern corner of the DPSC site, there is a slight southeasterly component to

flow; otherwise, flow patterns along the remainder of Oregon Avenue are southerly.

Any releases to groundwater that have occurred along Oregon Avenue or just offsite to the north would be expected to migrate onto the DPSC property. A

discussion of known releases that have occurred along Oregon Avenue is

presented in Sections 12.1 and 12.3.

Figures 7-3 through 7-9 all reveal similar maximum contaminant thickness

and/or isoconcentration trends. In each instance, the axis of the maximum soil

contaminant concentrations and free product/groundwater contaminant plumes

generally trends west-east. In Figures 7-3,7-6, 7-7, 7-8, and 7-9, there is a slight

inclination to the axis of the maximum isoconcentration values, giving these areas

of contamination and plumes a more southwest-northeast orientation. None of

these isoconcentration maps indicates a continuity of soil or groundwater

contamination into the northern half of the site.

Low levels of TPH and DRO contamination in soil and groundwater are

present at the northwestern portion of DPSC. The northwest limits of this

contamination are presently unknown. The areal extent of soil contamination,

geometry of the groundwater contaminant plume, and low level concentration of

the TPH/DRO species all suggest that this contamination is unrelated to the

massive gasoline/diesel plume covering the southern half of DPSC.

Since groundwater flow at DPSC is primarily north to south, for the massive

free product plume to have originated from the south, other transport mechanisms

needed to be evaluated. At this point, attention was directed towards a major

sewer line located just to the south of DPSC. This sewer, referred to as the Packer

Avenue and Pollock Street sewer system, runs east to west and continues through

the Sun Oil Company refinery south yard to the Schuylkill River. A preliminary

evaluation of the ability of sewer lines and other underground utilities in the vicinity

of the DPSC to convey free product and vapor phase petroleum hydrocarbon

contaminants is presented in Section 11.3.

If the massive gasoline/diesel plume on the southern half of DPSC

originated from the north, a more obvious corridor of residual soil and groundwater

contamination should be present in that area. The lack of high levels of residual

contamination on the north half of the site, together with the patterns of maximum

soil and groundwater contaminant isoconcentrations for each of the petroleum

2727FINL001 11-9
hydrocarbon species. appears to indicate that the contaminants migrated onto the

DPSC site from somewhere to the south.

11.3 Free Product and Vapor Phase Migration via Underground

Utilities

A large volume of free product (petroleum hydrocarbons) is known to exist

underneath the DPSC site, a larger volume than can be attributed to use of similar

products at DPSC. Since no other mechanisms for transport of such a volume of

free product have been identified to date, the objective of this section is to examine

the role of underground utilities as potential migration pathways for the free product

plume at DPSC.

DPSC is underlain and surrounded by various utilities, including water,

sewer, electricity, telephone, and gas lines. Such underground utilities are capable

of influencing the migration of groundwater or free product with which they come in

contact. Normally these utilities, inclUding sewers, are installed surrounded by

stone and/or gravel (bedding material). Any fluids in contact with such bedding

.. materials find a preferential pathway along these< lines.. Underground electric

cables are laid out inside another conduit. Any leakage of contamination inside the

conduits, due to corrosion, etc., may also provide preferential pathways for

contaminant migration. Various case histories, as documented in Assessment and

Remediation of Petroleum Contaminated Sites (Cole, 1994), have shown that high

permeability underground utility beddings provide preferential pathways for

contaminant migration irrespective of groundwater flow direction. Since very limited

information is available regarding bedding materials and depths of excavation at

this time, a detailed evaluation of how one or more of these underground utility

beddings may be acting, or may have acted, as contaminant migration pathways is

beyond the scope of this discussion.

DPSC is surrounded by several commercial gasoline and diesel outlet

facilities. Considering the substantial volume of free product currently existing on

DPSC, only large utility lines are.considered in this discussion. Since no other

large underground utility lines have been identified entering DPSC and because of

the locations and size of the sewers on and around DPSC, only these utilities have

been identified as potential contaminant migration pathways.

Sun Oil Company, a petroleum refinery, is located along the western

boundary of the DPSC, extending from northwest of DPSC to southwest of the site.

The Sun Oil Company's south yard is located along the western boundary of

DPSC. There is documented information concerning the existence of multiple free

product plumes on the Sun Company site along the 26th street sewer (northnorthwest of DPSC) and Pollock Street sewer, as shown on Figure 11-1. The free

product plume located at the Pollock street sewer is approximately 17 acres in

area.

2727ANL001 11-10
c

All material referenced herein was acquired from the City of Philadelphia

Water Department, DPSC archives, and Sun Company Reports. City of

Philadelphia Plat 15 and the DPSC Sanitary Sewer & Storm Drainage Map (drawing

#1357, dated 01-31-92) are contained in Appendix R.

The evaluation of sewers in the vicinity of DPSC as free product migration

pathways begins with the establishment of proper reference elevations. On the City

of Philadelphia Plat, manhole invert bottom (18) elevations are referenced to the city

plan elevation. The DPSC sanitary sewer and storm drainage map does not

indicate whether manhole elevations are referenced to City of Philadelphia plan

elevations or to NGVD. DPSC Public Works personnel indicated that manhole

elevations on the· DPSC map are probably referenced to the City plan elevation.

Also, the elevation (-1.54') of manhole #186 shown on the DPSC map near the

southern boundary of the site correlates closely with the elevation (-1.62') shown

for the same manhole on the City of Philadelphia Plat 15, suggesting that the DPSC

map references the City Plan elevation. Throug~ut this discussion, an assumption

is made that the elevations on both maps (Appendix R) are referenced to the City

Plan elevation. Since the City Plan elevation is 5.96 feet lower than NGVD, all

elevations have been normalized with respect to NGVD (Le., 5.96 feet has been

added to all city plan elevations).

11.3.1 Off-Site Sewer lfnes

. The following major sewers lie along DPSC's western, southern, eastern and

northern boundaries:

• 26th street stormwater (shallow)

.- __...._.... _.. 26th street sanitary sewer/lower Schuylkill East Interceptor (deep)

• Pollock Street Sewer

• Packer Avenue Sewer

• 20th Street Sewer

• Oregon Avenue Sewer

The 26th street sewers are proximal to and run parallel with the western

boundary of the DPSC. Although Packer Avenue presently stops at 20th street, the

Packer Avenue sewer continues south of the DPSC boundary, meeting the 26th

street sewers beyond the southwest corner of the DPSC. From this point on, it

becomes the Pollock Street sewer, running east-west and continuing to an outfall at

the Schuylkill River. An interception chamber is located close to the intersection of

the 26th Street and Packer Avenue/Pollock Street sewers. The Oregon Avenue

2727FINL001 11-11
and 20th Street sewers run parallel to, and lie beneath, Oregon Avenue and 20th )

Street, respectively:

A Sears Roebuck auto center was formerly located on Oregon Avenue,

north of the DPSC, and the SEPTA maintenance garage is located along 20th

street. east of DPSC. There have been documented releases of petroleum

products from USTs' at these two facilities. However, considering the volume of

free product estimated to be present on the DPSC site, it is unlikely that releases

from USTs at either of these commercial facilities could cause free product to attain

the areal ·extent and volume observed at DPSC.

1.3.1.1 26th Street Stormwater Sewer (Shallow)

North of Pollock Street: The 26th Street stormwater sewer flows north to

south and intercepts the Pollock Street sewer. Manhole invert elevations on

this sewer change from +17.86 feet to +7.64 feet; hence. this sewer is

unlikely to affect groundwater or free product migration because the

groundwater table elevation in the monitoring wells along 26th Street is

estimated to be between -0.1 and +5.15 feet with reference to NGVD,

indicating that the water table/free product level is below the bottom of the

sewer. However, the Sun Company reports confirm a possible breach in the

26th Street sewer. Hence, there is a possibility that vapor phase

contaminant migration may be occurring, or may have occurred in the past,

along this sewer.

South of Pollock Street: This stormwater sewer flows south to north and

intercepts the Pollock Street sewer. Manhole invert elevations change from

+ 15.07 feet to + 11.89 feet. Lack of groundwater table elevation data in this

region prevents a precise prediction of where this sewer could be in contact

with groundwater/free product table and affect contaminant migration.

Considering·the available groundwater elevation data in the vicinity (Sun

Company Reports), the water table in this area is not expected to be ·as high

as the lowest sewer invert elevation of + 11.89' and hence is unlikely to

effect contaminant migration.

11.3.1.2 26th Street Sanitary Sewer/lower Schuylkill East Interceptor

(Deep)

North of Pollock Street: This 48" diameter Reinforced Concrete Pipe

(RCP) combined sanitary and stormwater sewer flows south to north. The

sewer has a grade of 0.07% and 0.08% between the Packer Avenue sewer

and Oregon Avenue. Manhol~ invert elevations on this sewer change from

-8.83 to -10.29 feet, indicating the sewer is below the water table. As

indicated by the shape and closely spaced water table elevation contours on

Figure 6-1, this sewer seems to be acting as a subsurface drain and is . )'

capable of influencing the groundwater flow in the vicinity of the sewer by

2727FINL001 11-12
(

providing a preferential pathway along highly permeable bedding material

surrounding the sewer. The Sun Company Reports indicate the existence of

a free product plume along the 26th Street sewer. Free product migration

may be occurring along groundwater f10wpaths associated with this sewer

line.

South of Pollock Street: This 3S· RCP combined sanitary and stormwater

sewer flows south to north, with a grade of 0.02%. Elevations of manhole

inverts change from -4.50 to -8.28 feet. It is possible that this sewer is

capable of affecting contaminant migration, as discussed above.

Groundwater table elevations can not be accurately extrapolated in this area;

therefore, it is difficult to determine precisely where this sewer is in contact

with water table and what its effect on free phase and dissolved phase

migration may be.

11.3.1.3 Pollock Street Sewer

The Packer Avenue sewer at the intersection of 26th Street becomes the

Pollock Street sewer, Ultimately discharging into the Schuylkill River. An

interception chamber is located at this point. The Pollock Street combined

stormwater and sanitary sewer is an 8' x 12', rectangular, concrete sewer,

approximately 3,000 feet long, with a constant grade of 0.05%; it flows east to west.

According to the Philadelphia City Water Department, during regular times, only

stormwater from the 26th street shallow sewer flows into it. During high intensity

rain storms, the hydraulic gate shuts off the flow into the lower Schuylkill east

interceptor and a combined flow is directed into the Pollock Street sewer outfalling

in the S9huylkill River.

City Drainage Plat 15 shows 11 manholes on this sewer. Manhole elevations

could not be located either on Plat 15 or on the city return plan No. 9334.. All

manhole elevations have been extrapolated from an inlet elevation shown .on City

Plat 15. Elevations of manhole inverts on this sewer change from approximately

-D.S feet to:~2.04 feet between 26th Street and the Schuylkill river. Elevation of the

bottom of the sewer outfall is approximately -2.04 feet. The lower two feet of

almost the entire length of this sewer are presently estimated to be under the water

table. .

Even though there is a limited amount of data available, considering the

enormous size of this sewer, the existence of free product plume around this sewer

on the Sun Company site, the fact that the lower portion of this sewer may be

submerged underwater, together with various findings of the Sun Company reports,

there is a strong suggestion that this sewer and the sewer bedding is affecting

contaminant migration and providing preferential pathways for dissolved phase

and/or free product.

2727FINL001 11-13
The Sun Company Reports indicate the following with respect to the Pollock )

street sewer:

. • The existence of a free product plume extending between S-62 to S-48

Oocations shown on Figure 6-1) and estimated to be approximately 17

acres in area. A thickness of free product ranging from 0.24 to 3.32

feet has been noted in the monitoring wells along the sewer. There is a

possibility of free product migration eastward along the sewer bedding.

The existence of free product was also noted near the outfall of the

sewer at the Schuylkill River.

• An elevated water table, which may be an indication of groundwater

flow being influenced, was noted in the area around manholes MH-7

and MH-8.

• The lower portion of this sewer inten~6Qts the groundwater table,

suggesting preferential flow along the sewer bedding.

• The lithologic cross section shows the existence of high permeability

backfill (gravel and sand) around and below this sewer.

• The tidal influence on the Pollock Street sewer, noted by flow reversal

eastward towards 26th street as far as manhole MH-7, may also cause

an eastward groundwater flow along the sewer bedding.

11.3.1.4 Packer Avenue Sewer

The Packer Avenue Sewer, a combined sanitary and stormwater sewer

---- _-.J.Q_c:.~ted south of DPSC's southern boundary, flows east to west. A rectangular,

7' x 1b'~ concrete sewer, it increases to 8' x 12' as it nears 26th Street. It has a

grade of 0.05% between Penrose Ferry Road and 26th Street and joins the Lower

East Schuylkill sanitary sewer at the 26th Street interception chamber. A 42-

diameter RCP lateral.from DPSC hooks into the Packer Avenue sewer at DPSC's

southern boundary (near MW-7). Manhole invert elevation on this lateral of the

DPSC property is +4.34 feet and the elevation of the point of hook up into the

Packer Avenue sewer is + 2.06 feet. Figure 6-1 was used to extrapolate

groundwater contours beyond DPSC's southern boundary. This information was

used to project a groundwater profile. along the Pollock Street and Packer Avenue

sewers and to conceptualize any possible potential pathway via high permeability

backfill along the sewer. Figure 11-2 shows an elevated groundwater table in the

area between manholes MH-7 and MH-2 on Pollock Street. This apparent

decrease in hydraulic gradients suggests that an easterly component of

groundwater flow may exist along the Pollock Street sewer in the vicinity of 26th

Street.

2727FINL001 11-14
~.

(

Although current data is limited, considering the large capacity of this sewer,

its proximity to DPSC, and its intersection with the estimated water table in the

vicinity of 26th Street (Figure 6-2), there is a strong suggestion that the sewer

bedding may be acting, or in the past may have acted, as a conduit for migration

of the free product plume to the DPSC site.

11.3.1.5 20th Street Sewer

The 20th Street Sewer runs along 20th Street, on the eastern boundary of

DPSC. South of Johnston Street, it is a 42" x 28" elliptical brick sewer flowing north

to south and hooking into the Packer Avenue sewer at the intersection of Packer

and Moyamensing Avenues. Manhole invert elevations on this section of sewer

change from + 7.0 to +3.5 feet. Based on Figure 6-1, water table elevation in this

area is between 0 to + 1.0 foot. Hence, it is unlikely that this sewer is in contact

with the groundwater table and influencing the flow of groundwater in this area.

North of Johnston Street, this sewer is a 15" diameter sewer for a short

distance and then joins a 39" x 26" elliptical brick sewer that hooks into the Shunk

Avenue sewer. The manhole elevation on this sewer near DPSC is approximately

+ 12.36 feet. Based on Figure 6-1, the water table elevation in this area is between

+ 3 to + 5 feet, making it unlikely that this sewer is in contact with the groundwater

table and influencing the flow of groundwater in this area.

The DPSC Sanitary Sewer &Storm Drainage Map (Appendix R) shows

several laterals hooked up into the City of Philadelphia 20th Street sewer along the

DPSC eastern boundary. They are discussed in Section 11.3.2.4.

11.3.1.6 Oregon Avenue Sewers

The Oregon Avenue sewer consists of separate sanitary and stormwater

sewers, with several sections flowing east to west and west to east, finally

connecting with the Shunk Avenue Sewer via 20th, 21 st and 22nd Streets. As

shown on the DPSC Sanitary-Sewer &Storm Drainage Map and City Plat 15

(Appendix R), there are no hook-ups into the Oregon Avenue sewer section along

the DPSC northern boundary. Elevations of the manhole inverts located on Oregon

Avenue, as shown on City of Philadelphia Plat 15, vary between +12 and +15 feet.

Figure 6-1 indicates that the groundwater table elevation·in this area occurs

between +4 to +6 feet. Hence, it is unlikely this sewer is in contact with the water

table and is affecting groundwater flow. Any effects that these sewer sections may

have on free product migration with respect to alleged off-site spills at a former

Sears automotive center, discussed in Section 12.0, are not likely to be consistent

with the amount of free product known to be present at DPSC'.

2727F1NL001 11-15
·11.3.2 On-site Sewer Unes

DPSC is underlain by various sewer lines. Most of these utility lines are

located between 5'_10' above average groundwater table elevation on-site and are

not likely to effect either free product or dissolved phase migration. A detailed

assessment of on-site sewer lines as potential pathways for contaminant migration

is reserved for the Phase II scope of work. This section discusses the sewers

along the western, southern, northern, and eastern boundaries of DPSC and

preliminarily evaluates them, along with two other prominent utilities, as potential .

pathways for contaminant migration.

11.3.2.1 Western Boundary

The DPSC Sanitary Sewer and Storm Drainage Map (Appendix R), shows

laterals at Cheatham Street, Rogers Street, and Aleshire Street connecting to a 36"

diameter city sewer running parallel to DPSC's western boundary and flowing south

to north. According to the City of Philadelphia Water Department, there are no city

sewers at this location at what might previously have been 25th Street. Versar has

not found any further information about this sewer either in DPSC archives or at the

City Drainage Department. A DPSC Utility Map dated 1918 also shows this sewer

in the same location. Manhole elevations have been extrapolated from this map. It

is assumed that the elevations on the 1918 DPSC utility map are referenced to City

of Philadelphia plan elevation. Manhole elevations change from + 10.53 foot to

+ 8.53 foot along the DPSC western boundary; hence, this sewer is unlikely to

affect any free product or dissolved phase migration, considering the current water

table elevation in that area (+ 1 to + 6 feet) as depicted on Figure 6-1.

11.3.2.2 Southern Boundary

A 4211 diameter RCP lateral from the DPSC connects to the Packer Avenue

Sewer at DPSC's southern boundary (near MW-7). The manhole invert elevation

on this lateral on.the. DPSC property is +4.34 feet and the elevation of the point of

hOOk-Up intg the Packer Avenue sewer is +2.06 feet. Monitoring well MW-7 has

historically exhibited more than a foot of free product. As shown on Tables 4-11

through 4-13, the adjusted water table elevation in MW-7 is approximately +0.8

feet. Based on currently available information, this lateral is not in contact with the

groundwater table in this area at this time. However, it is likely that this lateral has

been exposed to free product and/or the water table during seasonally or

historically high water table fluctuations. Because this lateral is the most direct

possible pathway between the free product plume at DPSC and the Packer Avenue

sewer, this area should be investigated extensively.

11.3.2.3 Northern Boundary

This sewer runs along DPSC's northern boundary and joins the city sewer

located parallel to DPSC's western bo~ndary, as described in Section 11.3.2.1. As

2727FINL001 11-16
-

l

c

c

shown on the DPSC Sanitary-Sewer &Storm Drainage. Map and City Plat 15

(Appendix R). there'are no hook-ups into the Oregon Avenue sewersections along

DPSC's northem boundary. Since this sewer flows into the city sewer located at

the western boundary of the DPSC, the elevation of this sewer should be higher

than the elevation of the western boundary sewer and, in turn, the sewer flowing

along the northern DPSC boundary is above groundwater table in this area.

Hence, this sewer line is not likely to influence groundwater flow in this area

11.3.2.4 Eastern Boundary

This sewer runs along the eastern boundary of DPSC. The DPSC Sanitary

Sewer.& Storm Drainage Map (Appendix R) shows several laterals connected to

the City of Philadelphia 20th Street sewer. along the DPSC eastern boundary. The

20th Street sewer joins the Packer Avenue sewer outside the southeastern

boundary of DPSC. The invert elevation of the Packer Avenue sewer at this point

is expected to be above the groundwater table, indicating that the 20th Street

sewer flowing into the Packer Avenue sewer is also above groundwater table (0 to -

1 foot). Therefore, this sewer is not likely to influence groundwater flow in this

area.

As is the case with most of the smaller sewers discussed above. it is unlikely

that these boundary sewers have caused the vast plume of free product to

accumulate at the DPSC.

11.3.2.5 Fuel Tunnel on Rogers Street

A rectangular. concrete. underground tunnel. approximately 5.5' x 6.5,'

running from Building 18 to Building 8 along Rogers Street. houses steam pipes

and No.6 fuel oil transport pipes approximately 6 inches in diameter. No.6 fuel oil

is very viscous and must be heated in order to transport it to the boiler. Since the

concrete tunnel is no more than 3 to 9 feet bgs. it is not likely to be interfering with

groundwater flow on-site. A minor spill in the tunnel is discussed in Section·12.1.1.

11.3.3 Vapor Phase Migration

Several of the utilities underlying the DPSC site are located above the

groundwater table and as such are unlikely candidates for dissolved phase and

free product migration pathways. However. various case histories have shown that

these shallow. high permeability utility beddings make excellent pathways for soilgas vapor migration. An active soil-gas survey at DPSC has shown that higher

concentrations of soil-gas were detected in the southern half of the site. a finding

which is consistent with the location of the free product plume on DPSC. Soil gas

migration pathways most likely originate in this area. The passive (Petrex) soil gas

survey results appear to indicate that soil vapors are presently;migrating along

certain on-site utilities and into areas of fill.

2727FINL001 11-17
11.3.4 Conclusions

Based upon the limited information available about various underground

utilities, we cannot conclude that any of the identified utilities are acting, or have

acted, as pathways for contaminant migration. Considering the network of various

utilities that surround the DPSC and their sizes, there is a strong likelihood that the

bedding of one or more utilities may be providing, or may haVf~ provided,

preferential contaminant migration pathways. The Packer Avenue sewer, Pollock

Street sewer, and 26th Street deep sewer, because of their large size, their location

relative to the free product plume, and the possibility of high permeability beddings,

are likely to be interfering with groundwater and/or free product flow.

11.3.5 Ranking of Utilities as Potential Hydrocarbon Migration

Pathways

Based on information provided throughout this section, the following utilities

O.e., sewer lines) appear to represent the most likely petroleum hydrocarbon

migation pathways, in decreasing order of importance:

• Packer Avenue sewer and any other utilities located along the southern

boundary of DPSC,

• Pollock Street sewer including the interception chamber,

• 26th Street sewer appears to be acting as a subsuiface drain, and

• 20th Street sewer

11.3.6 Intrusive Work Recommended for Further Evaluation of Utilitie~

As Hydrocarbon Migration Pathways .

)

The area south of DPSC, along the Packer Avenue sewer, needs to be

thoroughly investigated. The need for further intrusive work should be evaluated

based upon findings of the Packer Avenue sewer investigation, notably with respect

to the following:

• The approximately 17-acre free product plume on the Sun Company

refinery south yard in the area along the Pollock Street sewer should be

further investigated. .

• The Sun Company property along the 26th Street sewer, south of the

DPSC, should be further investigated because a free prodUct plume.

though not along the sewer, has been reported. It is possible that the

Lower East Schuylkill interceptor, flowing south-north, may be interfering)

with groundwater and/or free product flow.

2727FINL001 11-18
l

--- (

• The groundwater contour patterns around the 26th Street deep sewer,

north of'Pollock· Street, exhibit an anomaly. Therefore this area merits

further investigation as this sewer is below the groundwater table and

may be acting as a subsurface drain.

On-site utilities should be investigated and eliminated as preferential

pathways for contaminant migration during Phase II of the RI. Most on-sitesewers

are estimated to be above the groundwater table and therefore unlikely to affect

groundwater flow. However, they may provide pathways for vapor phase

migration. No information is available regarding the exact location of the city sewer

running along the western DPSC boundary. This area will require some exploratory

work to locate this sewer line.

Detailed information is required about the depths of excavations and

bedding materials along the sewers and points where sewers are possibly in

contact with groundwater or free product.

2727FINL001· 11-19
- -

-7.30

-a.83 +11.57

+17.88 d---L.---_UIr ...., ..

B I i +1,

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---------------------------

SUN PHILADELPHIA REFINERY

PHILADELPHIA GAS WORKS

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WEST - EAST SEWER UNE PAOALE AND PlAN-VlCWI I T I I I BASED UPON COMPOSITE WATER TABLE I ELEVATION MAP OF DPSC AND SUN PROALE OF POLLoqK ANI:? PACKER SE'!'EAS

1 "

I OIL SITES. 

-

(SINCE NO DATA EXISTS BEYOND THE SOUTHERN

I BOUNDARY OF DPSC. PROJECTED WATER TABLE

I ELEVATIONS ALONG PACKER STREET ARE BASED UPON INFERRED GROUNDWATER CONTOURS)

I

ALL MANHOLE (MH) ELEVATIONS ARE TAKEN FROM

CITY OF PHILADELPHIA DRAINAGE PLATE 15 AND

HAVE BEEN NORMALIZED WITH REFERENCE TO NGVD.

I I 

26TH STREET 8"11 11: 11'W 

.. . / / / / / /

/ / /

S'H 11 12'W / / 

/-/ I / / /

/ / /7-/ /

/ / / -/ / / /

PROJECTED WATER TABLE ElEVATION 1""'\ I _

POu.oCK ST. SEWER -

+'" -i- .., 7" "',0 ----..... fI:J.2S

-:.--"" :s 

-- -D.2$ / / 7 /

-

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PLAN VIEW OF POU-OCK AND PACKER STREET SEWERS ! YW-4

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YH- IYH-10 YH-9 YH- t:.' YH-6 "IN- 5 • WH-3 YH-2 WH-1 

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MAY 1993 SUN DATA :z:

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I - I 
l 12.0 CONTAMINANT SOURCE AREAS

As part of the effort to identify the primary source or sources associated

with the massive free product plume that covers much of the southern portion of

DPSC, Versar researched areas where there have been documented releases of

petroleum hydrocarbons at DPSC and contiguous properties. These releases

were categorized according to whether they occurred on or off-site and in terms

of their relative size O.e., major versus minor, the former being defined as a

release demonstrated to affect an area greater than 1 acre in size). On-site

releases were further subdivided into those·associated with surface spills and

those related to underground storage tanks (USTs). Releases are described with

respect to type, location, and approximate size. The reference materials used to

establish a'record of releases in the vicinity of the DPSC include VISTA database

searches, regulatory file reviews, preliminary UST closure data, and various site

characterization and groundwater monitoring reports for DPSC and contiguous

sites. These resource materials are identified in the list of references provided at

the end of this Phase I RI report.

The identification 01 non-petroleum hydrocarbon contaminant source

areas will be made at the conclusion of Phase II of the DPSC RI.

12.1 On-site Releases

( 12.1.1 Spills

(

Several documented and undocumented spill incidents have been

reported at DPSC. No discharge from DPSC to the environment prior to 1982

was documented.

During October 1982, the fuel line to the boiler leaked approximately 600

gallons of No.6 fuel oil, which discharged to the fuel tunnel sump system. The

fuel was pumped to the storm sewer system, where it was transported off-site .

and discharged to the Schuylkill River. During recovery efforts, suction trucks

recovered approximately 2,500 gallons of oil/water mixture. The actual quantity

of oil recovered is unknown; therefore, the possibility exists thatfuel from the

tunnel and unlined manholes was discharged on-site.

An undocumented release reportedly occurred at the DPSC facility in

1981. The two USTs along the north~rn property boundary, extending beneath

Oregon Avenue, were not properly abandoned when taken out of service.

Reportedly, the top openings of the tanks were not sealed, allowing stormwater

to flow into the tanks. During a 1981 storm, the water levels in the tanks rose

and displaced the remaining petroleum hydrocarbons out of the tank. The

displaced petroleum hydrocarbons reportedly flowed onto the street and into the

storm sewer system. Subsequently, the oil/water mixture was removed from the

tanks and storm drain with a vacuum truck and the ground surface was cleaned

2727FINL001 12-1
f ,

1 •

up. After the tanks were pumped, they were filled with a sand slurry and sealed -)

to abandon in place.

An undocumented PCB spill occurred during the demolition of Building 5

in 1992. According to ACOE and DPSC representatives, the PCB transformer,

contaminated floor slab, contaminated fill (to a depth of approximately 3 feet),

and contaminated floor drain and 4-inch lateral to the 24-inch storm/sanitary

sewer were removed. The PCB fluid contaminated the surrounding soils and

reached the combined sewer system. Following excavation, soil sampling"results

indicated residual PCB contamination. Reportedly, the extent of the PCB

contamination was never fully delineated, and no remedial actions were taken

with respect to the combined sewer.

An October 1985 site visit by PADER personnel identified surficial soil

staining around the rail car fuel unloading station adjacent to the 200,000-gallon

ASTs. Following receipt of a PADER citation for the potential contamination,

DPSC remediated the area by removing the contaminated soils for off-site

disposal and backfilling the area with clean soil.

1 '

..

In September 1987, diesel contaminated soils were detected near the fuel

facility (Building 28) during excavation to install a computerized fuel management

system. SUbsequently, a leak from the diesel tank piping was detected. The

incident was reported to PADER, which conducted a site visit in October 1987.

PADER notified DPSC that this soil contamination was a violation of state

regulatory criteria SUbsequently, DPSC requested that the ACOE, Baltimore

District, perform a contamination assessment. After this request for assistance

was made, DPSC retrofitted the diesel tank fuel line and integrity tested all of the

fuel facility USTs and associated piping. The testing indicated that all of the UST·

systems were tight, and no additional leaks were identified. In addition, a review

of records indicated that no significant diesel fuel inventory discrepancies had

been documented. The contaminated soil from the leaking diesel fuel lines was

reported to be removed and placed in 55-gallon drums for disposal off-site.

The Baltimore District ofACOE performed a contamination assessment in

the area between November 1987 and January 1988 to define the extent of soil

contamination and to determine if groundwater had been impacted. The

conclusions of the assessment indicated that the fuel line leak contaminated an

area of approximately 1,000 square feet The contamination spread laterally

along the clayey layers, approximately 3 and 17 feet belo~ ground surface (bgs).

The contaminated soil detected at 17 feet bgs may represent an older release

not associated with the fuel line leak; and the free-floating plume detected on the

groundwater may be from off-site sources. Therefore, based on the review of

tank inventory files and the contamination assessment of the fuel line leak, this

release has a low potential to contribute to the on-site plume.

J

Two releases of petroleum prodUct occurred at the DPSC facility in \

November 1991. The first release occurred when the fill valve was left open ~J

2727ANL001 12-2
during an operation t9 heat and circulate fuel oil on the No. 6 fuel oil service tank

at Building 18. It is ~stimated that approximately 1,975 gallons of fuetgil were

discharged into the pipe tunnel from this spill. The second release was caused

by thermal expansion of the No. 6 fuel oil service tank located at Building 18. It

is estimated that 30 gallons of fuel oil were discharged to the ground during this

second release. A total estimate of 1,361 gallons of product was released to the

environment Both of these spill incidents were reported to PADER, and their

sUbsequent clean-up was coordinated with PADER. According to DPSC

representatives, the BUilding 18 011 spill cleanup was completed in accordance

with direction from PACER on March 24, 1992. However, there was no

documentation in the files to verify that the remedial actions were completed. '.

In conclusion, based on the documents and files reviewed, the majority

of spills that have occurred at the DPSC facility have either been cleaned up, or

due to the quantity and characteristics of the materials spilled. they could·not

have been a major contributor to the on-site gasoline/diesel contamination plume

found beneath the site.

12.1.2 Petroleum Storage Tanks

(

Historically. there have been 14 underground and 2 aboveground

storage tanks located at the DPSC site. The underground storage tanks are in

various states of use or closure. Gasoline, diesel fuel, DDT concentrate, motor

oil, and No.6 fuel oil were or are stored in the USTs. The aboveground tanks

(ASTs) both contain No. 6 fuel oil. For the most part, final closure of the USTsat

the DPSC site is complete, with the exception of the five No. 6 fuel oil USTs.

However, closure reports for the removed USTs are not available at this time.

This section was written by obtaining a correlation of sampling activities

conducted by Versar and/or the tank removal contractor, review of previous site

investigation reports, and conversation with knowledgeable site personnel.

Current plans are for the five 25,000-gallon No. 6 fuel oil USTs and two 200,00D-

·gallon No.6 fuel oil ASTs to remain in service.

In February 1994, American Construction Services (ACS) began

removing two 6,00D-gallon USTs containing diesel fuel or No. 2 fuel oil along

Oregon Avenue. The tanks were reported to have been installed in January

1922, and have been out of service since the 1940's. During tank removal

activities, another 6.000-gallon UST was uncovered, which also contained diesel

fuel or No. 2 fuel oil. Visible soil contamination was encountered around this

tank. Wu and Associates completed removal of the original two USTs in July

1994. The third was cleaned and closed-in-place because of its proximity to

Oregon Avenue. Soil samples collected at the bottom of the excavation (14 feet

bgs), beneath one of the two removed tanks. indicated a TPH concentration of

9,800 ppm. No additional soil removal occurred at the location and the hole was

backfilled. The soil contamination associated with these USTs has not yet been

delineated. However, SPILLCADlII overlays generated from soil samples

collected during the RifFS, tank removals, and previous sampling activities

2727FINL001 12-3
I f

1 ,

1 '

j

conducted at the DPSC site indicate that the contamination plume from these --

tanks is contained w~jn the 0 to 8 foot bgs interval; except for directly beneath _)

the tanks, where a TPH concentration of 9,800 ppm was detected at 14 feet bgs.

Soil samples collected between the tanks and northern edge of the

contamination plume, below the 8 feet bgs interval, indicate no TPH

contamination present Therefore, it is not anticipated that the release of fuel oil

from these tanks has contributed to the groundwater contamination plume

beneath the southern portion of DPSC.

In April 1994, ACS removed a SSO-gallon waste oil tank located in the

courtyard of Building 8. The tank was reportedly installed in January 1973 and

was constructed of steel. Versar was not provided with a closure report on this

tank. However, samples collected beneath the tank indicated a minor release of

.waste-oil into the environment. Sampling for TPH analysis indicated a

concentration of 1,200 ppm beneath the UST. The extent of contamination from

this release has not been fully delineated. However, it is not anticipated that this

release has impacted'groundwater or contributed to the on-site contamination

plume.

On May 7, 1994, ACS removed two 10,000-galion gasoline tanks and

one 10,000-gallon diesel tank, located south of Building 28. The USTs were

installed in January 1971 and supplied fuel for on-site automotive consumption.

The tanks were recently replaced with two 1,ODD-gallon ASTs. In 1988, these

USTs and associated piping were tightness tested, and the results of this testing

revealed no leaks. According to a Draft Closure Report dated June 20, 1994, no

. visible signs of contamination were evident beneath the excavated tanks. Soil

sampling conducted beneath the tanks indicated that minor soil contamination

was present However, significant levels of soil contamination were evident in the

piping trench near the associated pumping island, located north of Building 28.

The piping trench was excavated to approximately 26 inches bgs, and

approximately 50 cubic yards of contaminated soil were removed from the

trench. The extent of contamination has not yet been delineated. However, it is

not anticipated that the contamination extends vertically to groundwater, due to a

reported clayey layer located at 3 feet bgs.

Two 10,000-galion DDT USTs, located south of Building 9, were removed

from service by Wu and Associates during the winter of 1994/1995. The tanks

held a concentrated DDT solution that was pumped into the basement of Building

9, where it was blended and subsequently applied to blankets. The tanks were

originally filled with sand in 1983. On March 7, 1994, Versar collected soil

samples from within the DDT USTs, the concrete manway, and surrounding soil

for VOCs, TPH, and pesticide analyses. Results indicated that high levels of DDT

were encountered in the tanks and surrounding soil. TPH and vacs were

relatively low. The highest measured TPH concentration was 242 ppm in the

concrete manway, and the highest vac concentration was 10 ppb xylenes from

inside UST No.1. Versar was not provided with a tank closure report on these

tanks; however, the USTs have been remove~ the soil excavated, and the

2727FINL001 12-4
excavation backfilled in March 1995. Therefore, these USTs are no longer a

concern to the DPSC facility, and are not believed to have contributed to the onsite contamination plume beneath the site.

In February 1995, Wu and Associates removed the 30,OOO-gallon diesel

fuel UST located on Rogers Street, between Buildings 1 and 8. It was reportedly

installed in January 1971, was constructed of steel, and supplied diesel fuel to

generators located in Building 8. The tank has been out of service for"'~

approximately 10 years. Versar was not provided with a closure report on this

tank. However, analytic results of soil sampling beneath the UST indicated there

was no vac or TPH contamination beneath the tank. The excavation pit has

SUbsequently been backfilled and asphalted. This UST is not believed to have

contributed to the on-site contamination plume.

Currently, there are five active 25,OOp-gaIlon No.6 fuel oil USTs located

on the southwest corner ofthe facility between Building 18 and the two ASTs. All

five USTs were installed in 1942, are constructed of steel, and reportedly

encased in concrete. A piping network connects these tanks with the two ASTs

and the pump house (Building 18). No. 6 fuel oil is supplied to the Boiler House

by means of a concrete underground piping tunnel that runs from Building 18 to

Building 8. According to facility management, in the Fall of 1994, all five tanks

were cleaned and precision tested. Precision test results indicated that the tanks

tested tight. Therefore, it is not likely these tanks have contributed to the

groundwater contamination plume beneath the DPSC.

12.2 Major Potential Off-Site Sources

Regulatory files, various reports, and legal documents exist documenting

significant petroleum hydrocarbon releases that have occurred at the properties

adjoining DPSC on the west and northwest. Although it is possible that distant

sources may have contributed to the massive free product plume which exists at

DPSC, for reasons discussed in Section 11.0, the identification of areaS where

major releases have been documented focused on those which are closest to

the DPSC site.

The closest tract ofland where major free product releases are known to

exist is the Sun Oil Company refinery south yard, .Iocated northwest and west of

DPSC. Free product occurrence in the south yard has been documented at six

separate locations within that geographic area, according to maps included in the

Sun Company, Philadelphia Refinery 1993 Comprehensive Remedial Plan. These

locations may be summarized as follows: .

•

2727FINL001

Area 1: An east-west trending free product plume, approximately

2 acres in size, located in the northeastern part of the south yard,

near the Belmont terminal and adjacent to the 26th Street sewer.

Apparent free product thicknesses range from 0.25 to 1.25'.

12-5
• Area 2: A north-south trending free product plume approximately

1 acre in size and also located near the 2':;rh Street sewer in the

northeastern part of the south yard. Apparent free product

thicknesses range from 0.39 to 1.04'.

J

• Area 3: An east-west trending free product plume, approximately

17 acres in size and located in the west-central (process .area)

portion of the south yard, directly along the Pollock Street sewer.

Apparent free product thicknesses range from 0.03 to 2.27'.

• Area 4: An oval shaped free product plume, approximately. 12

acres in size, located in the southwestern part of the south yard

underlying the parking lot and tankage in that area. Apparent free

product thicknesses range from 0.15 to 3.32'.

• Areas 5 and 6: Two comparatively smaller free product plumes,

each approximately one acre in size and located near the

southernmost portion of the south yard. Apparent free product

thicknesses range from trace amounts to 7.73'.

Areas 1, 2 and 3 are all located along sewer lines, segments of

which pass directly to the south of the DPSC site. A more detailed discussion of

the relationship of these utilities may be found in.Section 11.3. It is possible that

one or more of these major free product sources is related to the free product

plume encountered in the southern portion of DPSC.

12.3· Minor Potential Off-Site Contributors

Versar, and its database consultant Vista, contacted appropriate federal,

state, and local regulatory agencies/offices for information to determine if any

past or present uses of the surrounding properties are of environmental concern

to the DPSC site. The federal and state environmental databases are presented

in Appendix S. Based on review of the database, there are several off-site

properties that may have contributed to the groundwater contamination at the

DPSC site. In addition, there are several off-site properties with the potential to

affect the subject property adversely. The results of these inquiries and

associated records research are discussed in this section.

12.3.1 Federal Database Review

Versar reviewed the EPA's Comprehensive Environmental Response,

Compensation, and Uability Information System (CERCUS) and National Priorities

Ust (NPL) to determine whether any properties nearby the DPSC are listed for

inclusion. EPA's CERCLA (or Superfund program) identifies hazardous waste

disposal sites that may require remedial action to mitigate potential negative

impacts to human health and the environment. Sites with potential contamination

or abandoned hazardous waste disposal sites are included in the EPA inventory,

. 2727FINL001 12-6
(

'-----

designated the CERCUS. Sites that have undergone evaluation and are

subsequently determined tq be above a specified level of threat to human health

and the environment are included on the NPL list.

Versar's review indicated that there are no NPL sites located within a 1-

mile radius or CERCUS sites located within 1/2-mile radius of the subject

property.

Versar also reviewed the EPA's Resource Conservation and Recovery

Act (RCRA) database to determine if any nearby properties are included. The

RCRA program identifies and tracks hazardous waste from the point of

generation to the point of disposal. The RCRA notifiers are those sites which

have filed notification forms with the EPA in accordance with RCRA requirements.

These sites include treatment, storage, and disposal facilities (fSDFs);

underground injection facilities; transporters; and generators of hazardous waste.

While RCRA facilities represent some form of hazardous waste activity, these

sites are most significant if they are determined to be out of compliance with

RCRA regulations. Sites determined to be out of compliance are listed in the

Resource Conservation and Recovery Act Administrative Actions Tracking

..System (RAATS) database or the RCRA Violators- (VIOLS)' or Corrective Actions

(CORRACTS) databases. .

. Versar's search of the ReRA databases indicated that there are five

RCRA generators located within 3/B-mile radius of the DPSC site. There are no

RCRA TSD facilities or CORRACTS sites within a 1-mile radius, no VIOLS sites

within a 1/2-mile radius, and no RAATS sites located near the subject property.

Moreover, the five RCRA generators are all in compliance with the rules

governing RCRA and are not believed to be a current environmental concern to

the subject property.

Versar reviewed the Emergency Response Notification System (ERNS) to

determine whether there are any adjacent prpperties listed. The ERNS is a

national database used to collect information on reported releases of 'oil and

hazardous substances. The database contains information from spill reports

made to federal authorities' including the EPA, the U.S. Coast Guard, the National

Response Center, and the Department of Transportation. There are three ERNS

sites located within 3/B-mile of the DPSC facility. However, all ERNS sites are

located more than O.15-mile east of the subject property. Based on known

groundwater flow direction to the southeast, these sites would be

hydrogeologically down-gradient of the DPSC site.

12.3.2 State and Local RegUlatory Review

Versar reviewed the VISTA database search of the PADER Hazardous

Sites Cleanup Program Ust (SPL); Ust of Confirmed Releases-Leaking

Underground Storage Tank Sites (LUST); Inactive Solid Waste Facilities, Solid

. 2727FINL001 12-7
Waste Transfer Stations, and Solid Waste Inventory Database (SWLF); and

Storage Tank Datab~e System-Underground Tanks (UST).

Versar,s review of the database search revealed that no SPL sites were

identified within 1 mile and no SWLF sites were identified within a 1/2-mile radius

of the subject property. '

There are 9 UST sites within 3/8 mile and 5 LUST sites within 3/4 mlie of

the subject property. The 9 UST sites are not listed on the LUST list Therefore,

they do not currently pose a known significant environmental threat to the subject

property. Four of the five LUST sites are located more than 3/8-mile from the

DPSC facility, are hydrogeotogically crossgradient (northeast) or downgradient

(southeast) of DPSC, and are not expected to have an environmental impact on

the property. These sites include the 20th Street Associates, 3200 South 20th

Street (0.39-mile south); Sunoco Gas Station, 18th Passyunk Avenue (0.S9-mile,

northeast); Ryder Truck Rental, 3400 South 26th Street (0.54-mile southwest);

and JFK Stadium, Broad and Patterson Streets (0.71-mile southeast). The

remaining LUST is the Sears Roebuck Co (a.k.a., Kahn Joint Venture site),

located north of the subject property at 2201 Oregon Ave. The database did not

. provide much information regarding the LUST. Therefore, Versar conducted a

file review at PADER's Division of Underground Storage Tanks. According to the

file review, in 1990, during the closure of a SSO-gallon waste oil tank utilized by

the·Sears Automotive Department, soil contamination was detected. The release

of waste oil was caused by Sears personnel dumping waste oil into the access

manhole instead of a remote drain installed to receive waste oil. It is reported

that this practice has been going on for 20 years. Currently, Sears and Kahn

Joint Ventures are in litigation over the waste oil contamination, and the extent of

contamination has not yet been delineated. Therefore, it is unknown whether

waste oil contamination has affected the DPSC property.

The SEPTA South Garage, adjacent to the DPSC on the east, is another

'another potential environmental threat Verser obtained a Phase II Umited Site

Characterization Report conducted on the SEPTA South Garage dated March 10,

1992. During removal of·four USTs, petroleum hydrocarbon contamination was

found in the subsoil. In April 1991, a Subsurface Site Investigation was

conducted in which 3 monitoring wells (MW-1, MW-2, and MW-3) were installed

and sampled. Petroleum hydrocarbons and BTEX constituents benzene and

xylenes were detected in all three wells. An additional well, MW-4, was installed

up-gradient of the former tank area and all wells were re-sampled in FebriJary

1992. Results of the sampling indicated the highest TPH concentration of 270

ppm was found in the up-gradIent well MW-4. However, no BTEX constituents

were detected. Conclusions from the Phase II Site Characterization Report

indicated that the TPH contamination found in MW-4 may be due to off-site

sources O.e., DPSC). However, the BTEX contamination was due to on-site

sources.

J

---/

2727FINL001 12-8
(

~.

L

Current groundwater flow direction in the vicinity of the SEPTA garage

was measured to be in an easterly direction, away from the DPSC facility.

However, in the 19605, DPSC utilized a groundwater production well located in

BUilding 8 for on-site water uses. It is possible that groundwater flow directions

were altered due to this production well, causing an environmental impact to the

DPSC facility from the SEPTA South Garage BTEX contamination. However, the

BTEX contamination has not been delineated at the SEPTA site, and it is not

known when the contamination occurred.

2727FlNL001 12-9
L

l

13.0 CONCLUSIONS

13.1 Extent of Contamination

The determination of the extent of contaminated media at the B6.5-acre

DPSC site is based on data generated from Phase I of the Remedial Investigation

work plan dated May 23, 1994, as well as on earlier site investigations performed at

this facility Qisted in the reference section of this report).

Phase I of the RI focused primarily on delineation of the extent of petroleum

hydrocarbon contaminated media at the DPSC and secondarily on the extent of

DDT contamination associated with the DDT storage tanks and mixing room

located in and around Building 9. Phase I of the RI investigation did not include

delineation of the vertical component of the dissolved petroleum hydrocarbon

groundwater contaminant plume or evaluation of other areas of concern at DPSC.

The latter investigatory tasks are planned as part of Phase II of the Rio

13.1.1 Petroleum Hydrocarbons

Petroleum hydrocarbons are ubiquitous contaminants of concern at the

DPSC site. During Phase I of the RI, three separate areas of contamination were

identified: .

• A massive free product plume developed over much of the southern

half of the site

• An area of DRO contaminated soil and groundwater in the

northwestern portion of the site and

• A release of a weathered fuel oil along Oregon Avenue in the north

central part of the DPSC

The massive free product plume is composed of a 2:1-3:1 mixture of .

gasoline and diesel fuels and occupies an area of approximately 54 acres, covering

most of the southern half of the facility. It is estimated that there are over one

million gallons of extractable free product in place with additional hydrocarbons

present in irreducible form. Soil and groundwater contamination maps for various

species of petroleum hydrocarbons all show similar trends' to the distribution of free

product.

The free product plume occurs within a clay dome developed on the

southern side of DPSC and may also be accumulating at that location as a result of

migration along the Packer Avenue sewer south of the facility. Within the footprint

of the free product plume, petroleum hydrocarbon contaminated soils reach

thicknesses of up to 13 feet, probably in response to a combination of water table

fluctuations and dissolution/transport of the more soluble constituents of the fuel

products comprising the plume. The vertical extent of groundwater contamination

2727FINL001 13-1
I f

1 •

in the aquifer is unknown, but is likely t: be significant; a benzene concentration of -)

;·;90 ppb was measured in MW-6D, wh··· is screened approximately 45 feet below _--,

water table depth. .

An isolated area of ORO contaminated soils and groundwater was identified

at the northwestern corner of the DPSC. The comparatively low levels of diesel

range organics in both soil and groundwater, the absence of other petroleum

hydrocarbon species, and the discontinuity with soil and groundwater

contamination encountered along the southern portion of the site, all suggest that

this contamination is associated with a different release. The ORO contaminants

detected in soils at the northwestern part of DPSC were found at several sampling _

depths within the fill materials at that location and also in groundwater samples

collected -from monitoring well and hydropunch samples.

A third area of petroleum hydrocarbon contamination was identified near

the north-central portion of DPSC along Oregon Avenue. TPH contaminated soils

were detected at this location during sampling for the in-place closure of a 6,000-

gallon diesel UST. No historical data was available concerning this UST, one of

three tanks in the area; however, it is believed that the 6,OOO-gallon UST was used

to store diesel fuel. TPH contaminated soils could not be differentiated by the

California lUFf sampling method; the .release was simply characterized as a

weathered fuel oil product. The extent of TPH contaminated media at this location

has not yet been completely defined. It occurs in the depth range 0 to 8 feet below

grade and could be associated with similar soil contamination that occurs directly

to the south along Aleshire Street, and possibly as far south as Building 8.

, I 13.1.2 O:ther Contaminants- of Concern

Phase I of the RI focused primarily upon delineation of the extent of

petroleum hydrocarbon contaminated media However, the analyses of soil and

groundwater samples collected for this objective were extended to include TCl

organic and TAL inorganic compounds to determine if any other site-wide

contaminant trends were evident. Sampling locations were limited by the primary

RI objective, and hence were not sited to evaluate other areas of concern and

involved no surface soil sampling.

The two significant contaminants identified as a result of the extended

analyses were polynuclear aromatic hydrocarbons (PAHs)-and DDT. Certain of the

PAHs were found to be directly related to the presence of the massive

gasoline/diesel free product plume in the south part of the site, while others

appeared to be related to the occurrence of fill materials at the northwestern and

southeastern corners of the facility. DDT contamination was detected in soils

directly contiguous to the former DDT UST sites south of Building 9 in the

southeast part of the site. This contamination was observed to have a very limited

areal extent. Analysis of samples acquired via direct push technology indicated the

contamination had not significantly impacted groundwater in the vicinity of these

USTs. The DDT USTs and associated contaminated soils were removed by Henry )

. 2727FINL001 13-2
Wu and Associates, Inc. in the first quarter of 1995. However, DDT contamination

was also identified beneath -the concrete floor in the basement of Building 9, and

this contamination has 'not yet been- completely delineated.

13.1.3 Potentially Uncontaminated Tracts at DPSC

L

The identification of any UcleanU land tracts at the OPSC is of consider?_ble

interest relative to BRAC reuse plans for the facility. From Phase I of the RI and

from earlier site investigations, it is evident that petroleum hydrocarbon

contamination has impacted most of the 86.S-acre property. Based on limited· data

from the performance of an active soil gas survey, the installation of MW-18, and a

single soil boring/monitoring well, no soil or groundwater contaminants have been

detected to date at the visitor's parking lot located at the southeast comer of the

intersection of 20th Street and Oregon Avenue. However, the following factors

must be weighed before this location may be designated as UcleanU:

• As a parking lot area, this area is subject to the gradual and nonsudden release of minor amounts of fuel oil and gasoline from the

vehicles that are parked in this area during working hours.

• The parking lot is situated immediately to the north of the SEPTA

maintenance garage; USTs at this facility have reportedly failed

precision testing.

. • The visitor's parking lot is situated east of the George Young Rigging

and Hauling Company, formerly the location of an Exxon gasoline

station.

13.2 Probable Sources of Petroleum Hydrocarbon Contamination

thE:! occurrence of ORO contaminated soil at the northwest comer of OPSC

was first documented in the OPSC Fuel Contamination Study conducted by the .

Baltimore ACOE in 1988. This soil contamination and associated groundwater

contamination was confirmed by Versar during Phase I of the RI. The low level

ORO soil and groundwater contamination may be related to emplacement of a

substantial thickness of fill materials of unknown composition in this area. These fill

materials attain thicknesses of up to 22 feet. Alternatively, it is possible that this

ORO contamination has originated from an off-site source located somewhere

northwest of OPSC. TPH levels in the form of ORO are below the PAOER clean-up

standard of 500.ppm established for releases exceeding one year in age. The

clean-up standards for ORO in groundwater are dependent on OPSC's background

water quality conditions, Which will be further evaluated in Phase II of the RI.

TPH contamination in soils contiguous to the 6,OOO-gallon Oregon Avenue

UST occurs at depth of ato 4 feet below grade and was observed to be

associated with overfill at the UST fill port. This TPH contamination was

2727FINL001 13-3
characte: ..--d as a weathered diesel fuel. The extent of soil and groundwater

contamir n associs:ted with this release has not yet been fully deline.§1ed.

Evaluation-of the source of the massive free product plume at the southern

portion of DPSC was accomplished through a process of elimination of potential

candidates.

13.2.1 Evaluation of Potential On-Site Source Areas

• The ORO release in the northwestern portion of the site is spatially

distinct from the massive free product plume and has a different

chemical signature.

• The weathered diesel fuel release in the north-central portion of the

DPSC is also spatially distinct from the massive free product plume.

No free product was detected in MW-2A, downgradient of the Oregon

Avenue UST release and upgradient of the massive free product

plume. Moreover, the Oregon Avenue release has a different

chemical signature from the free product plume.

• Near the northeast corner of Building 28, soil contamination was

delineated during the 1988 DPSC Fuel Contamination Study and found

to be limited to an area of approximately 1000 square feet. It appears

to have been associated with a diesel fuel release attributed to

corroded tank piping. The report indicated that the diesel

contamination had spread laterally along two clay layers at 3 feet and

17 feet below grade, but suggested that the deeper contamination

might have represented an older release. Contaminated soil at the 3

foot level in the pipe trenches was removed on two separate

occasions: during retrofitting of the corroded sections of piping and

then again when these pipes were replaced in 1994.

• There is no evidence of significant releases from either of the former

10,OOO-gallon gasoline USTs or from the 10,OOO-gallon diesel UST

near Building 28. All three tanks passed inspection following

tightness testing performed between December 1990 and July 1991.

• No releases were evident during the closure ofthe 30,ooO-gailon

diesel UST on Rogers Street or during closure of the 550-gallon waste

oil (used motor oil) tank in Building 8.

• There are no documented releases of No. 6 fuel oil from the either the

two 200,OOO-gallon ASTs, five 25,OOO-gallon USTs, or the DPSC fuel

tunnel that runs along Rogers Street. Any releases that may have

occurred with respect to any of these ·Bunker C· fuel oil tanks would

. be easily distinguishable from the gasoline/diesel oil character of the -J

54-acre free prodUct plume by their chemical signature. /

2727F1NL001 13-4
13.2.2 Evaluation of Potential Off-Site Source Areas

l

c

.\

• Of the eight USTs installed at the SEPTA garage in 1979. at least one

10.000-gallon diesel UST is now permanently out of service. As of

1991, the facility also had two 10.000-gallon diesel USTs. one 6.000-

gallon gasoline UST, and five waste oil USTs (one 1,000-gallon. three

550-gallon. and one 285-gallon tanks). Based on current hydraulic

gradients. any releases that might have occurred from these tanks

would be expected to migrate in a south or southeasterly direction

away from the DPSC. The former DPSC process water supply well

located in Building 8 may have caused an earlier reversal in hydraulic

gradient O.e., westerly direction of groundwater flow) in the vicinity of

the SEPTA garage. but production from this well pre-dated the

installation of the eight previously described USTs. The underground

-stormwatersewer lines between the SEPTA garage and the free

product plume at DPSC do not appearto represent a significant

transport pathway due to the shallow depth of this sewer line. It is

not known whether the occurrence of BTEX in one of the SEPTA

groundwater monitoring wells at the sduthem portion of the facility

represents an easterly transport of dissolved phase hydrocarbons

from the DPSC free product plume, or if it is related to a release

. associated with the SEPTA gasoline UST.

• The Kahn Joint Venture property, at the northwest comer of the

intersection of 22nd Street and Oregon Avenue, is located near the

north central portion of the DPSC. This site was formerly the location

of a Sear's automotive repair shop with three 2.000-gallon virgin

motor oil USTs and one 550-gallon waste oil (spent motor oil) UST.

The three 2.000-gallon USTs were closed in-place and the 550-gallon

waste oil UST was removed. TPH soil contamination was detected

upon removal of the waste oil tank at levels of up to 7,500 ppm. The

extent of this release has not been completely delineated. However.

soil and groundwater impacts associated with this release would be

expected to have a lube oil type chemical signature and should be

easily distinguishable.from the massive gasoline/diesel plume located

on the southern half of the DPSC.

• West of DPSC. numerous areas of free product occurrence have

been documented in the Sun Oil Company refinery south yard.

Based on 1993 mapping. at least six separate areas of free product

occurrence are known to exist in this area; it is estimated that more

than 30 acres of this contiguous property are underlain by free

product. which in some areas attains apparent thicknesses up to 7.3

feet. No characterization data is available concerning the nature of

the product released in this area. However, limited product inventory

records indicate that both gasoline and diesel products were stored at

this location at some past time. The inspection of free product maps

. 2727F1NL001 13-5
"-

I ,

in Sun Oil Company annual groundwater monitoring reports indicates

that several of the free product plumes occur in the vicinity of

underground sewer lines, notably the 26th Street and Pollock Street

sewers. It is possible that free product migration occurs along the

bedding materials and/or backfill associated with these sewers and

that a continuous utility pathway exists between the refinery south

yard property and the southern portion of the DPSC.

13.3 Preliminary Findings Regarding Responsible Parties

Versar has reason to conclude that the single most likely potential source

of the 54-acre free product plume at the DPSC is the Sun Oil Company refinery

south yard, in light of careful consideration of the following factors:

• The volumL.~,f free product along the southern portion of DPSC

exceeds one: million gallons, and additional product volume occurs in

an irreducible form in vadose zone soils. Based on available

information concerning various on-site and off-site releases in the

vicinity of DPSC, none of these individual sources is likely to have

generated a product volume this large, except for the refinery south

yard. Interpretation of groundwater f10wpaths and ttte chemical

signatures associated with the various releases, excluding the Sun

refinery south yard releases, indicate that they did not act in a

cumulative sense to produce a one million gallon free product plume)

that is "a gasoline/diesel fuel mixture.

• Free product does not appear to have migrated onto the DPSC site

from a northwest direction following regional groundwater flow

patterns. Although low levels of ORO contaminated media were

detected in the northwest corner of DPSC, no discernible transport

pathway for the free prodUct plume was recognizable from the

analyses of soil and groundwater samples collected in this area If

the gasoline/diesel plume entered the DPSC from the northwest;

residual soil contaminants bearing this chemical signature should be

evident in the silty, fine grained soils that comprise the aquifer. The

absence of this chemical signature suggests an alternate transport

pathway.

• As indicated by the pattern of isoconcentration contours for various

hydrocarbon species, the extent of soil and groundwater

contamination associated with the free product plume at DPSC

suggests a source that lies somewhere to the south of the facility.

The area south of DPSC is primarily residential; however, major city

sewer lines south of the DPSC site continue into the refinery area and

are known to be associated with various occurrences of free product

in that area.

2727FINL001 13-6
L

• There· are no manifestations of the massive free product plume in

soils in the depth interval from 0 to approximately 15 feet below

grade, making it improbable that any major spills or surface releases

at DPSC contributed significantly to the free product plume. The .

presence of a surficial low permeability silt and clay unit at DPSC

tends to inhibit the potential infiltration of spills to water table depths.

2727FINL001 13-7
14.0 RECOMMENDATIONS

Three recommended tasks remain to be performed at DPSC to complete

implementation of the RI/FS:

• Additional responsible party determination, including additional

characterization required to identify free product and vapor phase

transport mechanisms that may occur via subtle migration pathways.

• Assessment of the need for possible interim remedial measures to

assure containment of the free product plume.

• Evaluation of the remaining areas of concern at DPSC, including

delineation of the dissolved phase groundwater contaminant plume

associated with the occurrence of more than one million gallons of free

product, and subsequent completion of a Baseline Risk Assessment

and Feasibility Study.

14.1 Completion of Phase II of the Remedial Investigation

Phase I of the remedial investigation deals exclusively with the delineation of

petroleum hydrocarbon and DDT,cc;mtaminated media at DPSC. Identification of

DPSC AOCs and the sampling and analysis plan requirements are specified in the

RI/FS, Project Operations Plan dated May 23, 1994. It is recommended that

characterization of the following additional areas of concern (AOCs) be performed.

• Sediment and surface water in site stormwater catch basins;.

• Subsurface soils along the combined sanitary/stormwater sewers and

along the underground fuel oil tunnel;

• Subsurface soils and groundwater 'adjacent to the NIKEmissile

assembly area (Building 26);

• The former incinerator area and associated fill materials;

• Surface soils along site railroad tracks and background surface soils;

• Sand filter trap sediment and subsurface soils near the waste oil UST in

the Building 30 motor pool area; and

• Subsurface soils beneath Building 9 and along the product lines from

the former DDT USTs to the DDT mixing room.

. 2727FINL001 14-1
14.2 Follow·~~'" Tasks to Improve PRP Determinations

The inte;·tJretation of data collected in Phase I of the RI concerning the

nature and extent of petroleum hydrocarbon contamination at DPSC significantly

narrowed the number of possible sources likely to have contributed to the massive

free product plume on the southern half of the site. These data, while suggesting

the most probable product transport directions and contributory sources, are not

conclusive. Additional characterization should be conducted to establish a clear

understanding of the mechanisms controlling product migration along underground

utilities (specifically sewers) and to delineate the southern boundary of the free

product plume. To ensure a technically defensible PRP determination, the following

tasks must be completed, in order, with the objectives of each task and a detailed

scope of work clearly defined in a work plan prior to implementation:

• Performance of a soil gas survey along the Packer Avenue and Pollock

Street sewers for identification of volatiles associated with free product.

The survey will support the siting of soil and/or groundwater sampling

locations along both sewers.

• Geologic logging, sampling, and analysis of soil and groundwater

samples along the Packer Avenue and Pollock Street sewers via direct·

push technology and on~site analytical capabilities. These sampling

locations should be extended as far south as necessary to delineate the ~)

southern limits of the free product plume.

• Excavation of test pits in the vicinity of the Packer Avenue and Pollock

Street sewers to characterize the thickness and physical characteristics

of bedding materials and backfill and their propensity to transmit free

phase petroleum hydrocarbons. <

• Fingerprinting analyses of free product on the southern portion of the

DPSC site, along the Packer Avenue and Pollock Street sewers, and in

Areas 1, 2, and 3 of the Sun Oil Company refinery south yard as

defined in Section 12.2. To maximize the correlation of free product

chemical characteristics across substantial distances, these analyses

should include the following:

1. All the gaseous hydrocarbons in the C1

·C5 range "

2. Eighty volatiles in the gasoline (C3-C10) range

3. Total lead and organic lead

4. Lead alkyl additives in gasoline, including identification of the

individual compounds and amounts

5. Lead isotope ratios - 206pbl04Pb of total lead in gasoline

6. N-a1kanes through carbon numbers C33 or greater, along with

certain other paraffinic species for diesel fuels

2727FINL001 14·2
c

7. Polycylic saturated··hydrocarbon classes of steranes and

triterpanes called ubiomarkersuthat are chemical fossils that

contain the hydrocarbon skeletons of components in the

biological materials from which the petroleum was originally

formed.

8. Polynuclear aromatic compounds

9. Side chain substitution on polynuclear aromatic hydrocarbons

10. Stable isotope ratios for carbon, hydrogen, and sUlphur

11. Trace metals, especially vanadium a~d nickel

• The extent of the dissolved phase of the petroleum hydrocarbon

groundwater contaminant plume should be delineated. The geometry

and geochemical characteristics of this plume may provide additional

information concerning migration pathways of the free product plume.

Delineation of the dissolved phase plume may also be necessary,

depending on the establishment of remedial action objectives and

groundwater clean-up standards, to support remedial design criteria for

aquifer restoration.

14.3 Interim Remedial Measures

The Phase I RI findings show.that there are nearly one million gallons of free

product located in the southern portion of the DPSC site. In addition to

groundwater contaminated by free product, there is a significant quantity of soil

containing TPHs and dissolved phase groundwater contamination. Potential

migration pathways for. the free product include on-site and off-site migration via

groundwat~r and vapor phase migration through the soil and along utility lines to

on-site and off-site receptors (e.g., basements). In order to minimize the potential

.for further migration of the free product· contamination and to protect the health and

safety of potential on-site and off-site receptors, the implementation of an interim

remedial measure (IRM) designed to minimize the migration of free product is

recommended. Protection of human health and the environment and

containment/removal of the free product plume are the primary objectives of the

IRM. However, it should be noted that until free product contamination is

addressed, TPH contaminated soil and dissolved phase groundwater contamination

cannot be cost effectively treated.

The installation of a free product extraction system is the most effective

method for containing/removing the free product from the groundwater. The

extraction system will not control vapor migration, but the removal of the free

product will reduce the amount of material available to be released via the

vaporous phase. In addition to the free product extraction system, a vapor phase

monitoring program should be developed to ensure the continued protection of the

health and safety of on-site workers. The vapor phase monitoring program should

2727FINL001 14-3
, I

include, at a minimum, a combination of soil vapor monitoring and ambient air

monitoring in all basements. '

The extraction system will typically consist of a series of extraction wells

whose configuration will be dependent upon the hydrogeologic characteristics of

the site and the site~specific remedial objectives. In order to effectively design the

system, existing groundwater flow conditions should be modeled using a threedimensional flow model such as MODFLOW. Once existing conditions have been

determined, various groundwater pumping scenarios should be modeled in order

to determine the optimal design for the free product eXtraction system. The

extraction system will modify regional flow patterns, effectively containing the

plume, and will result in the removal of free product.

A cost-benefit analysis should be conducted to identify the most cost

effective method(s) of handling the extracted product and groundwater. For the

free prodUct, reuse or recycling is recommended. Umited analytical testing may be

required to effectively evaluate reuse and recycling options. The extracted

groundwater can be reinjected, treated on-site, treated off-site, or recycled. Some

treatability testing will likely be required to determine the best method for ultimate

disposition of extracted groundwater.

. 2727F1NL001 14-4
(

'--

15.0 STEPS TOWARDS REMEDIATiON OF PETROLEUM CONTAMINATED

MEDIA

To reach the goal of remediating the petroleum hydrocarbon contaminated

media at the DPSC site and to ensure the protection of human health and the

environment, several steps must be conducted concurrently with the

recommended Phase II Investigation in order to expedite remediation and

minimize future health concerns. The scope and objective of each step are

summarized in the following sections.

15.1 Remedial Action Objectives

A key step in the selection of the most appropriate remedial alternative is

the development of Remedial Action Objectives (RAOs), which define specific

goals for the protection of human health and the environment on a media-specific

or operable unit specific basis. RAOs ensure that potential remedial actions

adequately protect human health and the environment. RAOs typically specify (1)

the contaminants of concern, (2) exposure pathways and receptors, (3)

acceptable contaminant levels, and (4) areas of attainment Key factors

influencing the development of RAOs are (1) regulatory requirements, (2) riskbased health criteria, and (3) future land use scenarios. For example, acceptable

contaminant levels for a site that is to be used for industrial purposes may be

greater than acceptable contaminant levels for a site that may be used for

residential purposes. Examples of potential RAOs for the DPSC site include:

• Prevent ingestion of groundwater found to exceed ARARs or estimated

to have an excess cancer risk of greater than 10-6 or a hazard index of

greater than 1.0 by a hypothetical future on-site resident.

• Prevent the migration of free product contaminated groundwater to offsite receptors.

• Prevent direct contact with surface soils found to exceed ARARs or

estimated to have an excess cancer risk of greater than 10-6 or a

hazard index of greater than 1.0 by an ·on-site worker.

"

• Prevent the migration of contaminants from soil to groundwater.

• Prevent the migration of vapor phase contaminants from site soils to

the basements of on-site bUildings.

15.2 Applicable or Relevant and Appropriate Requirements

The Comprehensive Environmental Response, Compensation, and Uability

Act (CERCLA), as amended by the Superfund Amendments and Reauthorization

Act of 1986 (SARA), requires that remedial cleanup actions comply with Federal

. 2727FINL001
1 •

i

J

O.e., EPA and DOD) ~nd State environmental laws. Although the OPSC site is not J

a CERCLA regulate: "',ite, the CERCLA requirements should be utilized as a

guideline for investigating the site and selecting an appropriate remedial

alternative. In accordance with CERCLA provisions, remedial cleanup actions

must satisfy requirements that are applicable, or relevant and appropriate to the

hazardous substances or to the circumstances of the release. The requirements

that must met are those which are applicable, or relevant and appropriate

(ARARs).. ,HARs are defined as follows:

• Applicable requirements are those requirements promulgated under

Federal O.e., EPA and DOD) or State law that specifically address a

hazardous SUbstance, remedial action, or other circumstance at a

hazardous waste site.

• Relevant and appropriate requirements are those requirements

promulgated under Federal O.e., EPA ~_OOO) or State law that are

not applicable to a hazardous substance, remedial action, or other

circumstance at a hazardous waste site, but that address situations

similar to those encountered and their use is well suited to the

hazardous waste site.

• ~o be considered requirements- are those requirements (e.g., health

advisories, gUidances, proposed regulations) that have not been -}

promulgated, but should be considered in developing remedial action

alternatives at the hazardous waste site.

There are three types of ARARs that remedial actions may have to comply

with (1) Chemi:':::-specific ARARs, (2) Location-specific ARARs, and (3) Action-

..:..~cific ARARs. These types of ARARs are defined below: ........_- -

• Chemical-specific ARARs set concentration limits or ranges in various

environmental media for specific hazardous substances (e.g.,

Maximum Contaminant Levels).

• Action-specific ARARs set restrictions on specific types of activities

related to the management of hazardous substances (e.g., National

Ambient Air Quality Standards). .'

• Location-specific ARARs set restrictions on activities based on sitespecific characteristics (e.g., wetlands restrictions).

15.3 Baseline Risk Assessment

The objective of a baseline Risk Assessment (RA) is to provide an

evaluation of potential threats to human health and the environment in the

absence of any remedial action. The primary components of anRA are:

2727FINL001 15-2

.~)
(

\

,~-

contaminant identification, .exposure assessment, toxicity assessment, and risk

characterization. Contaminant identification involves the evaluation of available

data to determine the concentrations and toxicity of hazardous substances

present in the relevant media (e.g., soil, groundwater). The objectives of the

exposure assessment are to identify current and/or future exposure pathways,

evaluate potential receptors, and estimate expected exposure concentrations.

Adverse effects of exposure are evaluated during the toxicity assessment. Finally,

an estimate of the potential for adverse health or environmental effects is

developed during the risk characterization.

Depending on the complexity of the site (e.g., number and types of

contaminants present) and the RAOs, the RA may be a quantitative or qualitative

evaluation of risks. A quantitative RA will result in the development of numerical

risk estimates based on carcinogenic risks and noncarcinogenic risks. A

qualitative RA may involve the comparison of contaminants of concern to ARARs.

Quantitative toxicity data are available for individual components of petroleum

hydrocarbon contamination, such as benzene, but are generally unavailable for

petroleum hydrocarbons as a whole. Based on this fact, the evaluation of risks

related to petroleum hydrocarbons at the DPSC site ~i11 most likely require

qualitative or semi-quantitative risk assessment methods.

15.4 Focused Feasibility StUdy

Based on the data gathered above, a focused Feasibility Study (FS) should

be conducted to identify optimal remedial a1ternative(s) for dissolved phase

. groundwater contamination and soil contamination. The primary objective of the

FS is to gather sufficient data to decide the most appropriate remedy for a given

site. The FS typically consists of two major steps (1)'development and screening

of technologies, and (2) detailed analysis of alternatives. Although the areal extent

of petroleum hydrocarbon contamination is large, the number of contaminants of

concern is limited. Based on the limited number of contaminants of concern, a

focused FS should be considered for the DPSC site in the interest of saving time

and money.

In a focused FS, the detailed analysis of alternatives will be conducted, but

the development and screening of technologies will be streamlined. The

development and screening of technologies typically involves the identification and

screening of the universe of remedial technologies. Because there are only a

limited number of potentially viable remedial technologies applicable to petroleum

hydrocarbon contamination, the ·screening process should be limited to those

technologies that have proven successful in the remediation of petroleum

hydrocarbon contamination.

The identification and screening of potentially viable remedial technologies

should be completed as early as possible so data gaps (e.g., treatability testing

2727FINL001 15-3
f I

requirements) can be identified and resolved prior to conducting the detailed

analysis of alternatives'.

. 2727F1NLOOl 15-4

..~

)
( REFERENCES

'-.-

1. American Construction Services, Inc. Closure Report For Tank #006, DPSC,

Philadelphia, Pennsylvania. June 20, 1994.

2. Baker Environmental, Inc. Final Report, Preparedness, Prevention and

Contingency Plan, DPSC, Philadelphia, Pennsylvania. April 1992.

3. Cole, G. Mattney. Assessment and Remediation of Petroleum Contaminated

Sites. 1994.

4. Environmental Science & Engineering, Inc. Draft Work Plan, DPSC,

Philadelphia, Pennsylvania. October 1990.

5. Environmental Science & Engineering, Inc. Final Engineering Report For the

Defense Personnel Support Center. November 1991.

6. Groundwater and Environmental Services, Inc. Annual North Yard and South

Yard Perimeter Groundwater Sampling Event, Sun Company, Inc. (R&M),

.Philadelphia Refinery, Philadelphia, Pennsylvania. January 31, 1994.

7. Groundwater and Environmental Services, Inc. Groundwater Assessment,

Jackson Street Sewer, Pollock Street Sewer, and 26th Street Sewer, Sun

Company, Inc. (R&M), Philadelphia Refinery, Philadelphia, Pennsylvania.

September 1993.

8. Groundwater and Environmental Services, Inc. Groundwater Assessment,

South Yard, Northeast Property BO(Jndary, Sun Company, Inc. (R&M), .

Philadelphia Refinery, Philadelphia, Pennsylvania. February 10, 1994.

9. Groundwater and Environmental Services, Inc. Semi-Annual Groundwater

Monitoring and Gauging Events, July through September 1993, Sun Company,

Inc. (R&M), Philadelphia Refinery, Philadelphia, Pennsylvania. January 1994.

10. Groundwater and Environmental Services, Inc. Semi-Annual Groundwater

Monitoring and.Gauging Events, January through June 1994, Sun Company,

Inc. (R&M), Philadelphia Refinery, Philadelphia, Pennsylvania. July 1994.

11. .Integrated Science & Technology, Inc. Technical Work Plan, Non-Aqueous

Phase Uquid Hydrocarbon Characterization, DPSC, Philadelphia,

Pennsylvania. February 1995.

12. Integrated Science & Technology, Inc. Technical Work Plan, Supplemental

Site Assessment Activities, DPSC, Philadelphia, Pennsylvania. February 1995.

2727FINL001 References-1
I f

, ,

REFERENCES

(Continued)

13. Pennsylvania Geological Survey. Groundwater in the Coastal Plain of

Pennsylvania. 4th Series, Bulletin W-13, 1961.

14. Sun Company, Inc. (R&M), Philadelphia Refinery. Comprehensive Remedial

Plan. January 1993.

15. Target Environmental Services, Inc. Soil Gas Survey, Atlantic Philadelphia

Refinery, Philadelphia, Pennsylvania. August 1988.

16. U.S. Army Corps of Engineers, Baltimore District. Drilling Report for the DPSC

Fuel Contamination Study, Philadelphia, Pennsylvania. January 1988.

17. U.S. Army Corps of Engineers, Baltimore District. Site Characterization Report

for New ADP/Administration Building, D~SC, Philadelphia, Pennsylvania.

1992.

18. U.S. Army Corps of Engineers, Philadelphia District. Cultural Resources

Survey, DPSC, City of Philadelphia, Philadelphia County, Pennsylvania.

Contract DACW61-94-R-D012, Delivery Order #4. November 1994.

19. Versar, Inc. Project Operations Work Plan, Remedial Investigation/Feasibility

Study, DPSC, Philadelphia, Pennsylvania. May 1994.

20. Versar, Inc. Minimum Standards of Operation and Performance. 1988.

21. VISTA Environmental Information.. VISTA Report No. 015378055. April 28,

1993.

~,

) -,-/

)

2727FINL001 References-2
(

'---

c'

ACRONYM UST

ACOE u.s. Army Corps of Engineers

ACS American Construction Services, Inc.

AOCs Areas of Concern

AOTESOLV Aquifer Test Solver

ARAR Applicable or Relevant and Appropriate'Requirement

AST(s) . Aboveground Storage Tank(s)

ASTM American Society of Testing Materials

AWL Adjusted Water Level

bgs Below Ground Surface

BRAC Base Realignment and Closure

BTEX Benzene, Toluene, Ethylbenzene, and Xylenes

CERCLA. Comprehensive Environmental Response, Compensation and Uability Act

CERCUS Comprehensive Environmental Response, Compensation and Uability

Information System

CLP Contract Laboratory Program

CORRACTS RCRA Corrective Actions Database

CPT Cone Penetrometer

01 Deionized

oLA. Defense Logistics Agency

DOD Department of Defense

DPSC Defense Personnel Support Center

DOOs Data Quality Objectives

ORO Diesel Range Organics

DTP .Depth to Product

DTW Depth to Water

EB Equipment Blank

ENSA Environmental Services of America, Inc:

EPA U.S. Environmental Protection Agency

ERNS Emergency Response Notification System

ES&E Environmental Science & Engineering

FB Field Blank

FlO Flame Ionization Detector

FS Feasibility Study

GC Gas Chromatography

GES Groundwater and Environmental Services, Inc.

GPR Ground Penetrating Radar

GRO Gasoline Range.Organics

. HASP Health and Safety Plan

HCI Hydrochloric Acid

HN03 Nitric Acid

H2.S04 Sulfuric Acid

HP Hydropunch

2727ANL001 AL-1
f

f

..

IB

lOW

IG

IRM

UF

LNAPL

LUST

MCLs

MH

MRD

MS/MSD

MSL

MTBE

MW

NaOH

NO

NED

NGVD

NPL

OSHA

PADER

PAHs

PCBs

PID

PPE

PRP

PT

PVC

QA

QC

RA

RAATS

RAO

RCP

RC~,,:\

RG

RI

SARA

SCAPS

SEPTA

SG

SMCLs

2727FINL001

ACRONYM LIST

(Continued)

Invert Bottom

Investigation Derived Waste

Infiltration Goal

Interim Remedial Measure

Laser Induced Fluorescence

Ught Non-Aqueous Phase Uquid

Leaking Underground Storage Tank

Maximum Contaminant Levcts

Manhole

Missouri River District, U.S. Army Corps of Engineers

Matrix Spike/Matrix Spike Duplicate

Mean Sea Level

Methyl Tertiary Butyl Ether

Monitoring Well

Sodium Hydroxide

Not Detected

New England District, U.S. l\rmy Corps of Engineers

National Geodetic Vertk;(/ Latum

National Priority Ust

Occupational Safety and Health Administration

Pennsylvania Department of Environmental Resources

Polynuclear Aromatic Hydrocarbons'

. Polychlorinated Biphenyls

Photoionization Detector

Personal Protective Equipment

Potentially Responsible Party

Product Thickness

Polyvinyl Chloride

Quality Assurance

Quality Control

Risk Assessment

RCRA Administrative Actions Tracking System

Remedial Action Objective

Reinforced Concrete Pipe

Resource Conservation and Recovery Act

Recharge Goal

Remedial Investigation

Superfund Amendments Reauthorization Act

Site Characterization Analysis Penetrometer System

Southeastern Pennsylvania Transit Authority

Soil Gas

Secondary Maximum Contaminant Levels

AL-2

.~

I

~\

/
L

SOPs

SPl

SVOCs

SWLF

SW846

TAL

TCl

TClP

TOC

TPH

TSDFs

USCS

USGS

UST(s)

VIOLS

VOA

VOCs

2727FINLOOl

ACRONYM UST

(Continued)

Standard Operating Procedures

State Priority Ust

Semi-volatile Organic Compounds

Solid Waste Landfill

Test Methods for Evaluating Solid Wastes

Target Analyte Ust

Target Compound Ust

Toxicity Characteristic leaching Procedure

Top of Casing

Total Petroleum Hydrocarbons

Treatment, Storage and Disposal Facilities

Unified Soil Classification System

U.S. Geological Survey

Underground Storage Tank(s)

RCRA Violators Database

Volatile Organic Analysis

Volatile Organic Compounds

.."'-

Al-3
f

i

Attachment 1

PHASE I REMEDIAL INVESTIGATION/FEASIBILITY

STUDY FOR DDT USTIMIXING ROOM
KemROn

ENVIRONMENTAL SERVICES .

Project 8057

PHASE I REMEDIAL

INVESTIGATION/FEASmILITY STUDY

FOR DDT USTIMIXING ROOM

FOR THE DEFENSE PERSONNEL SUPPORT CENTER

PHILADELPHIA, PENNSYLVANIA

Submitted to:

CENAP-EN-MM

U.S Army Corp of Engineers

Wanamaker Building

100 Penn Square East

Philadelphia, PA 19107-3390

Submitted by:

KEMRON Environmental Services, Inc.

7926 Jones Branch Drive

Suite 1100

McLean, Virginia 22102

July 27, 1995
TABLE OF CONTENTS

EXECUTIVE SUMMARY

PAGE... • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •• w

1.0 :INTR.ODUCTION 1

2.0 SD'E DESC~ON ,- ••••••••••••••••••••••••••••••• • •• 3

2.1 Project Area

2.2 Surrounding Area

2.3 Site GeologylBydrogeology

3.0 ImALTH AND SAFETY •••••• '. • • • • • • • • • • • • • • • • • • • • • • • • • •• 4

3.1 Risk Assessment

4.0 SAl\IPLIN'G PROGRAl\f ~_.~ 0 • • •• 5

4.1 DDT Tank Area Soil Sampling

4.2 Water Sampling'

4.3 Mixing Room Soil Sampling

5.0 FIELD SCREENING PROCEDURES ••••••••••••••••••••••••• 7

C, 6.0 INTERPRETATION OF LABORATORY DATA •••••••••••••••••• 14

7.0 CONCLUSIONS AND RECOMMENDATIONS ••••••••••••••••'•••• 15

FIGURES

..'-_....-....-.

FIGURE 1 - SITE LOCATION MAP •••••••••••••••••••••••••••••••• 2

FIGURE 2 - BOREHOLE LOCATION MAP • • • .. • • • •• • • • • • • • • • • • •• • • • • 6

FIGURE 3 - MIXING ROOM COREHOLE LOCATIONS •••••••••••••••••• 8

FIGURE 4 - BOREHOLE SAMPLES EXCEEDIN'G LANDBAN LIMITS ••••••• 12

TABLES

TABLE 1- BOREHOLE FILED SCREEN ANALYTICAL RESULTS •••••••••• 9

TABLE 2 - MIXING ROOMS FIELD SCREENING ANALYTICAL RESULTS ••• 13

APPENDICES

c

APPENDIX A - PHYSICAL AND CHEMICAL PROPERTIES OF DDT

APPENDIX B - MILLIPORE FIELD ANALYTICAL PROCEDURE

APPENDIX C - LABORATORY ANALYTICAL RESULT DOCUMENTS

APPENDIX D - CHAIN OF CUSTODY FORMS
f

•

EXECUTIVE SUMMARY

KEMRON Environmental Services, Inc (KEMRON) and Versar, Inc. as part ofthe larger Phase

I Remedial InvestigationlFeasibility Study as outlined in Section 2.2.3.5 of the revised Project

Operations Work Plan conducted a limited DDT investigation.

The task was to characterize and delineate the extent of DDT (dichlorodiphenyltrichloroethane)

contamination determined to be present surrounding the former UST locations and the potential

contamination which might be present beneath the former DDT mixing room flooring and floor

drains in and adjacent to Building No.9, and to identify those areas which might require further

investigation and/or remediation as part of the BRAC closure process.

Studies ofDDT indicate that the~e are several target organs in humans and DDT has been found

to cause tumors in laboratory animals. However, results from this limited investigation indicate

that such impact for either human or animal receptors is minimal due to the following site

conditions and observations: (1) the target contaminant, DDT, appears to be confined within site

soils, generally above the observance of local groundwater, (2) that contamination is segregated

from direct human or animal contact by the site's thick concrete and asphalt pad overlying the

contaminated areas, and (3) the potential for volatilization ofthe contaminant is'low. Therefore,

the potential exposure from ingestion, inhalation or dermal contact is low.

. The results of this investigation determined that contamination existed south of the DDT UST

pit excavation to the south in three borings and beneath the concrete slab floor in the mixing

room at levels which would require incineration as a result of the Land Ban. The contamination

level must be less than 87 ppb. The highest soil contamination found during the investigation

surrounding the UST's was 20 ppm. Soil contamination beneath the floor ofBuilding No.9 was

found as high as 220 ppm. This indicates that there may be extensive contamination,beneath the

sub-basement flooring. KEMRON recommends that future work should include an investigation

to determine if the contamination found beneath the flooring in Building No. 9 extends beyond

the limits of the building. ThiS investigation should focus on the potential subsurface routes of

contamination which is primarily the floor drain which has a long run to the storm sewer. The

purpose of this study would be to determine if there was contamination as a result of possible

exfiltration from the drainage piping. Furthermore, groundwater samples were found to contain

DDT contamination. The level measured ranged from .19 to 1 micrograms per liter. Currently,

there is no DDT MCL for drinking water. However, a proposed RCRA remediation level of

.0001 milligrams per liter was found for groundwater. Therefore a risk assessment may be

necessary to determine if the level present in the groundwater poses a significant risk. Kemron

also recommends that as part of the risk assessment an appropriate remedial response be based

on the potential future use of the facility and possible future construction projects.

c KEMRON Environmental Services, Inc•. iii
I ,

1.0 INTRODUCTION

This report summarizes activities of a limited field investigation conducted by KEMRON

between September 15 and December 14, 1994. This investigation was the result of the

discovery of DDT contaminated soil from an earlier sub-surface soil and groundwater

investigation. Site data from that previous investigation where pesticides were detected in soils

reported in an earlier report titled Sampling of Unknown Contents in DDT USTs by VERSAR

dated April 8, 1994. The area of concern is adjacent to two former underground storage tanks

(USTs) used for the storage of DDT located south of Building 9 (Figure 1). The tanks held a

concentrated DDT solution that was pumped to a mixing room in the basement of Building 9,

where it was blended and subsequently applied to blankets. Wipe sampling inside the mixing

-:,om indicated moderate to high levels of DDT contamination. As part of this investigation

:;;,;reholes were placed in the sub-floor to evaluate potential DDT impact to the sub-floor soils.

KEMRON Environmental Services, Inc. 1
o 

....

_ ._ .._ .. .. ._. . ._. __ ._<. ._._.. ._. . 

S C· H U Y L K ILL E X PRE SSW A Y (I - 7 6 )

-. --·x-- --- -- ···--·-x- .--.... --x.- .•--- ···--x-

__

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--- .- 0\ f

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- -. - -_ -.------------r-----:--.- ------------0

LOADING DOCK r 

Iill

ill

n:

I-

(J)

5

PAVED LOT

A

BUILDING

B

I _._ ._. __ ._ _ I 

.0•• - __ _ __ - • • _00 _._ 0 __ • • __ - ._ - • •• 0 -------- • -

FIGURE 1. LOCATION OF DDT TANKS AT DPSC SITE
2.0 SITE DESCRIPTION

2.1 Site Location

As previously noted the DPSC is located at 2800 South 20th Street in Philadelphia and is bounded

by 2Qth Street to the east, Oregon Avenue to the north, the Schuylkill Expressway to the south,

and the CSXT/Conrailline to the west. The site consists of several warehouse/loading dock

buildings, and office structures located on a 0.5 square mile parcel. The facility comprises

approximately 86.5 acres and is found at approximately 3go55' north latitude and 75°11' west

longitude on the Philadelphia, PA-NJ 7.5 minute U.S. Geological Survey (USGS) topographic

quadrangle map. .

2.2 Facility Description and Operation _.;.~-_._.

'The DPSC facility is government-owned and is operated by the Defense Logistics Agency

(PLA). According to DPSC personnel, the property has always been owned or leased by the

Department of Defense (DOD). The facility was constructed in 1918, and additional

construction and major renovations occurred at the site in the early 1940's. Prior to initial

construction in 1918, the property was reportedly vacant, unimproved land. Presently,

approximately 95% of the total property area is developed with buildings or pavement.

The DPSC facility is responsible for the worldwide distribution of supplies for the DOD. This

responsibility includes procuring and distributing food, clothing, and medical supplies to all

branches of the armed forces and other authorized federal agencies and foreign countries, as

.required. The majority of the supplies distributed by DPSC are manufactured and·stored at

·-othetinstaJ~ations. Historically however, DPSC did manufacture some textile and clothing items

on-site, and some of the supplies were stored in the DPSC facility's warehouses..

2.3 Site Geology/Hydrogeology

Sediments are of a locally undifferentiated lithology consisting of pebbly, poorly sorted quartzofeldspathic sands interbedded with sandy clay and silt. Also found locally are sediments of a

fme to coarse-grained sand and clay with traces of diatomaceo~s earth and shell fragments.

Younger, Pliocene stream outwash sediments are mixed with surface exposures.

Groundwater at the site was encountered at a depth of approximately 16 to 18 feet in a light gray

coarse-grained Cretaceous sand. A silty clay, a potential aquitard, was present at a depth of

about 4 feet, overlain by the undifferentiated Pliocene sediments. A denser, less silty clay layer

was encountered between 10 and 12 feet in site boreholes. The hydraulic gradient is locally low,

and the general groundwater flow direction is to the southwest toward the Schuylkill River.

c KEMRON Environmental Services, Inc. 3
3.0 HEALTH AND SAFETY

A site-specific Health and Safety Plan was adhered to during the on-site work. Protective

clothing, steel-toed boots, and hardhats were worn by the field staff while on site. In accordance

with the current OSHA regulations, all personnel working on site were required to:

• Have completed an OSHA approved 4O-hour health and safety course (29 CFR

1910.120, 1991) for hazardous material workers, with annual updates;

• Have participated in a medical surveillance program;

• Wear highly visible clothing while on site, where necessary;

• Use safety cones In the work area, where necessary;

Before the onset of drilling at the DPSC site, "Miss Utility" was timely notified for appropriate

demarcation of all underground utility lines on the property, including electric, gas/oil,

communications, water, and sewer lines. As an additional precaution, a "Miss Utility" agent

was asked to visit the project area at the start of work to verify the absence of utility lines in the

vicinity of the proposed borehole locations.

3.1 Risk Assessment

DDT is also known as dichloro-diphenyl-trichoroethane. Studies in mice have shown that DDT

exposures results in an increase incidence of liver tumors; therefore, exposure to'residual DDT

compounds were major health and safety concerns for the field staff (Appendix A). Potentially

impacted receptors would locally include hUiiian exposure, limited wildlife contact, arid exposure

of constituents to nearby waterways. However, results from this limited investigation indicate

that such impact for any of those receptors here is mjnimal due to the following observations:

(1) the target contaminant, DDT, appears to be conimed within site soils, above the observance

of local groundwater, (2) that same contamination is protected from direct human or animal

surface cOlitaet by the site's concrete and asphalt pad overlying the contaminated areas, and (3)

the potential for volatilization of constituents is not present at the site. Therefore, the potential

exposure risk to locally released substances by the most common receptor pathways - ingestion,

dermal· contact, or inhalation, is low.

-.

KEMRON Environmental Servic:es, Inc:. 4
l 4.0 SAMPLING PROGRAM

Field sampling methods were performed in accordance with KEMRON's Field Operations SOP

manual and strict chain-of-eustody procedures were followed for all sample identification and

shipping activities.

Soils at all of the sampling locations with the exception of the mixing room areas were gathered

using a Geoprobe rig. The Geoprobe is a vehicle-mounted, hydraulically-powered direct push,

soil sample acquisition machine that uses hydraulic pressure and percussion to advance small

diameter sampling tools into the subsurface for collection of soil or groundwater samples.

4.1 DDT Tank Area Soil Sampling

Soil samples were taken at the DPSC project site in accordance with the original scope of work

and the additional work described in the Technical Proposal - Remedial Investigation jor the

Former DDT Tank Location, Defence Personnel Suppon Center Philadelphia, Pennsylvania,

dated October 6, 1994. Exact sample locations were chosen for proximity to the spread of DDT

contamination (Figure 2). All borehole soil samples were collected at or near the proposed

locations shown in Figure 2 of this report.. A total of fifty-five soil and seven groundwater

samples were collected and analyzed from around the DDT tank pit area beginning on November

15, 1994.

4.2 Groundwater Sampling

Following completion of soil sampling activities, five of the seventeen soil-sampling boreholes

which had been drilled down to between 18 and 26 feet were then fitted with 1-inchinside

diameter rod with a bottom-end slotted screen to gain access to groundwater, which had been

encountered at an average depth of 17 feet. The 20-foot length ofstainless steel pipe was driven

into the ground using the Geoprobe hydraulic driver to a depth of approximately 4 inches below

the groundwater:surface level. A length of 0.25 inch outer diameter polyethylene tubing was

inserted inside the stainless steel pipe to retrieve the water samples. Water was then extracted

using a manual oscillating ball-valve pump. All water samples were contained in sterilized

.bottles and shipped in temperature-eontrQlled containers to KEMRON's Ohio Valley Laboratory

for analysis as were control samples (OVL).

c KEMRON Environmental Services, Inc. 5
--j-' -_.. _- .._---_. -_._- --_..__ .- 

f. - -- • -- .. CURB

NBH-4

(f)

NBH-3

@

NBH·2 !f'>

(l)

., NBH-9

NBH-1 (if>

BH-7 BH-6 BH-9 BH-10

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.. ., .-- - ---r'F' ._- -- -- -./=(¥)- -/-....

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., NBH·8 NBH-7 t -NBH-6

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NBH-17 7 NBH-18

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WATER LINE

SANITARY SEWER LINE

/

" /

1·00( .. 20' ...( ;/ /

@l ,/

NBH-16 , , ,

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BH - PREVIOUS BOREHOLE LOCATIONS

NBH - LOCATIONS OF NEW BOREHOLES

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-- r --- r --;--- -;---/ --7---7

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FIGURE 2. BOREHOLE LOCATION MAP.
4.3 Mixing Rooms Soil Sampling

Th~se rooms were used to mix and regulate the concentration of DDT and other constituents

utilized in the spray mix for military blankets.

On December 13 and 14, 1994, six coreholes were drilled through the concrete floor ofthe two

basement DDT mixing rooms of Section B ofBuilding 9. Upon completion of the eight-inch

deep cores by Gem Cut Construction Co., soils beneath the floor were sampled for the presence

lof any residual DDT which might have found its way into the subsurface. Two of the six holes

were cut adjacent to drainage sumps (Figure 3), one sump was'located in each ofthe two rooms.

These sumps would have collected any spilled liquid or wash water deposited on the floor

surface during the time that the mixing rooms were active.

5.0 Field Screening Procedures and Analysis

Soil sample extraction methods and field analyses were performed in accordance with Millipore

.EnviroGardTM test kit instructions (Appendix B), which are a modification oflaboratory protocols

stated in "Test Methods for Evaluating Solid Wastes", (EPAlSW-846, 3rd edition,1987).

The procedure is an immunoassay based on the use of polyclonal antibodies that bind DDT and

its' metabolites (DDD or DDE) when present in a sample. (NOTE: The Millipore test kit is a

qualitative or semi-qualitative field screening and WILL NOT differentiate between DDT and

its' metabolites. '

All soil samples collected from each borehore from the area surrounding the DDT tank pit were

either analyzed using the field screen test kit (Appendix B). Borehole samples with DDT

concentrations greater than 2ppm were forwarded to KEMRON's Ohio Valley Laboratory for

confirmation and toui! petroleum hydrocarbon (TPH) analysis (Table 1). Only three boreholes

(BH-7, BH-8, and BH-9) indicated the presence of DDT concentrations above the action level

of 2ppm (Figure 4). Groundwater sample collected were also shipped to KEMRON's

Laboratory following strict chain-of-custody. The highest value found in any of the water

samples was 1 microgram/liter. ,

All of the mixing room sub-floor samples were field screened and forwarded toKEMRON's

OVL for confirmation because field analyses determined that DDT concentrations were

extremely high, much higher than the upper calibration detection limit provided for in the field

test kit (Table 2)., The highest value found for these soil samples was 64 parts per million, with

the lowest at 18 part per billion (Table 2).

/

"'-- KEMRON Environmental Services, Inc. 7
S9UTH PORTION OF SEC. B, BLDG. 9 

- OPEN STORAGE ROOM CORE

CH-x

35 TPH C

[ DDT C

INTERIOR CINDER-BLOCK ./WALL

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""f-,",

. EXTERIOR CONCRETE WALL------,- o feet 5

APPROX. SCALE

FIGURE 3.. LOCATION OF MIXING ROOM COREHOLE SA
L

Table 1 - Borehole Field Screen Analytical Results·

Date Sample Sample I.D. Depth Sample Results (ppm)

Taken Number Taken (ft.)

11/16/94 BH-7 6-8 < 2

11/16/94 BH-7 10-12 < 2

11/16/94 BH-7 14-16 > 2 < 10

11/16/94 BH-7 16:18 ...

- - < 2

. 11/16/94 BH-7 18-20 < 2

11/16/94 BH-7D· 18-20 < 2

1.1/18/94 BH-6 6-8 < 2

11/18/94 BH-6 10-12 < 2

11/18/94 BH-6 14-16 < 2

11/18/94 BH-6 18-20 < 2

11/21/94 BH-9 8-10 <.2

11/21/94 BH-9 12-14 '< 2

11/21/94 BH-9 14-16 < 2

11/21/94 BH-9 20-22 > 2 < 10

11/22/94 BH-8 6-8 < 2

11/22/94 BH-8 10-12 < 2

11/22/94 BH-8 14-16 > 1 < 10

11/22/94 BH-8 18-20 > 1 < 10

11/22/94 BH-8 20 > 10

I

KEMRON Environmental Services, Inc. 9
11/23/94 BI:I-8 22-24 10

11123/94 BH-8 25 > 1 < 10

11/29/94 BH-16 10-12 < 2

11/29/94 BH-16 14-16 < 2

11/29/94 BH-16 18-20 < 2

11130/94 BH-15 4-6 < 2

11130/94 BH-15 10-12 < 2

11130/94 BH-15 14-16 < 2

11130/94 BH-15 18-20 < 2

11/30/94 BH-15 20-22 < 2

11130/94 BH-l 6-8 < 2

11/30/94 BH-1 10-12 < 2

11130/94 BH-1 14-16 < 2

11/30/94 BH-l . . 18-20 < 2 .

12(01194 NBH-2 6-8 < 2

12/01194 NBH-2 10-12 < 2

12/01/94 NBH-2 14-16 < 2

12/01194 NBH-2 20-22 . < 2

12/01194 NBH-3 6-8 <: 2

12/01194 NBH-3 . 10-12 < 2·

12/01194 NBH-3 14-16 < 2

12/01194 NBH-3 20-22 < 2

12/02/94 NBH-4 18-20 < 2

12/02/94 NBH-4 20-22 < 2

.12/06/94 BH-14 22-24 . < 2

12/06/94 BH-14 18-20 < 2

12/07/94 BH-14 . 8-10 < 2

12/07/94 BH-14 10-12 < 2

KEMRON Environmental Services, Inc. 10
·12/07/94 BH-14 14-16 < 2

12/07/94 BH-17 8-10 < 2

12/07/94 BH-17 10-12 < 2

12/07/94 BH-17 14-16 < 2

12/07/94 BH-17 18-20 < 2

12/08/94 BH-18 8-10· < 2

12/08/94 BH-18 14-16 < 2

12/08/94 BH-18 18-20 < 2

... The following table represents all the locations and the depth of each borehole soil

sample analyzed by the DDT field test kit. All results are reported in parts per million

(ppm). Note that these results are from a field screening methodology, and do not

necessarily reflect laboratory methology.
WATER LINE

j.l(- .. _. _._- 20' _... -- ;,J.-'• ./

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..

_

..

_

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--- --- - CURB

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. 5000 (20-22)

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@. '-f

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28' ---------....1

r

!

.() BOREHOLES WITH SAMPLES EXCEEDING LAND BAN LEVELS. RESULTS ARE IN ppb. _ BUILDING g-

.

- -

...

_

.._- -' ..

__

. ._ .._,. . . ...__..

'

._ .L'. .£ 

FIGURE 4. SAMPLES EXCEEDING LAND BAN LIMIT
Table 2 - Mixing Rooms Field Screening Analytical Results·

Date Sample Sample I.D. Depth of Soil Laboratory Field

Taken Number Sample (in.) Results Results

(ppb) (ppm)

12/20/94' CH-l 18 410 Not

analyzed

12/20/94 CH-2 18 18 >10

12/20/94 CH-3 18 220,000 >10

12/20/94 CH-4 18 3,100 >10

12/20/94 CH-S 18 64,000 > 10

12/20/94 CH-6 18 120 > 10

L * This table represents the locations and the depth of each mixing room sample analyzed

by the DDT field test kit. All results are reported in ppm. Note that these results are

from a field screening methodology, and do not necessarily reflect laboratory methology.

c KEMRON Environmental Services, Inc. 13
6.0 DATA INTERPRETATION

Following KEMRON's standard QAlQC proceedures a percentage ofthe soil samples which had

indicated positive for the presence of DDT based on ~eld analytical methods were sent for

analysis to KEMRON's fIxed base laboratory for confIrmation. It was noted that in several

instances field analytical results indicated the presence of DDT while those same samples

analyzed by the laboratory indicated that DDT was not present (Appendix C). An investigation

into the apparent discrepancies was conducted by the laboratory and a determination was made

that there was a high matrix interference which prevented the positive identification of DDT in

the samples of concern. As a result although DDT was determined to be present in the samples

it could not be quantified by laboratory procedures.

The samples in question· were also analyzed for TP~petroleum byproducts were

commonly used as a DDT solvent and common carrier fluid.' A petrolific odor was noticed in

samples which showed elevated field analysis concentrations for DDT. Laboratory data do

confirm the presence of TPH in samples from borehole eight. (BH-8), which had a DDT field

screen of greater than 2 but less than 10 ppm. In addition, the lab analysis for the water sample

from borehole nine (BH-9W), also indicated the presence of TPH and DDT at low levels, but

again due to matrix interference no level could be quantified (Appendix C).

Laboratory data did confirm field analyses for presence of DDT contamination in two of the

mixing rooms samples (Table 2). Laboratory data confirmed that three of the mixing room

samples results were higher than the lOppm calibration level as indicated by the field test

methods (Appendix C).

.- -- _..

KEMRON Environmental Services, Inc. 14
I f

7.0 CONCLUSIONS AND RECOMMENDATIONS

The contaminants of concern are listed below with their respective land ban concentrations for

soils and RCRA actions levels.

Parameter

4,4' -DDT

4,4' -DDD

4,4' -DDE

Land Ban

Concentration (npb)

87

87

87

RCRA Action

Level (ppb)

2,000

3,000

2,000

. '.

The results of this investigation determined that contamination existed south of the DDT UST

pit excavation to the south in three borings and beneath the concrete slab floor in the mixing

room at levels which would require incineration as a result ofthe Land Ban. The· contamination

level must be less than 87, ppb. The highest soil contamination found during the investigation

surrounding the UST's was 20 ppm (Table 1). Soil contamination beneath the floor of Building

No.9 was found as high as 220 ppm (Table 2). This indicates that there may be extensive

contamination beneath the sub-basement flooring. KEMRON recommends that future work

should include an investigation to determine if the contamination found beneath the flooring in

Building No.9 extends beyond the limits of the building. This investigation should focus on the

potential subsurface routes of contamination which is primarily the floor drain which has a long

run to the storm sewer. The purpose of this study would be to determine if there was

contamination as a result of possible exf1ltration from the drainage piping. Furthermore,

geoprobe groundwater samples were found to contain DDT contamination. The level measured

ranged from .19 to 1 micrograms per liter. There is currently no DDT MeL for drinking

water. However, a proposed RCRA remediation level of .0001 milligrams per liter'was found

for groundwater. Therefore a risk assessment may be necessary to determine ifthe level present

in the groundwater poses a significant risk. Kemron also recommends that as part of the risk

assessment an appropriate remedial response be based on the potential future use of the facility

and possible future construction projects.

KEMRON Environmental Services, Inc. 15
APPENDIX A

PHYSICAL AND CHEMICAL PROPERTIES OF DDT
Physical and Chemical Properties of DDT

DDT is also known as dichlorodiphenyltrichloroethane; 2,2-bis(p-chl orophenyl)-l,l,ltrichloroethane; and some of the tradenames are as follows: Pentech; Santobane;

Chlorophenothane; Gesarol and Neoid. The chemical formula is C14HgCls.

DDT is a colorless to slight white color to white powder with a slight aromatic odor.

This odor will vary depending on purity and manufacturing process. It has a molecular weight

of 354.50 grams/mole, a melting point Of 108 - 1090C and is .non-combustible. At 20°C its

vapor pressure equals 1.5 X 10.7 mm Hg. DDT is insoluble in water, however it is soluble in

acetone, benzene, toluene, and other common organic solvents. It is incompatible with alkaline

materials.

Toxicological Effects

The TLV and STEL (Theshold Limit Value and Short Term Exposure Limit) are 1

mg/m3 and 3 mg/m3, repectively. DDT is employed as a contact insecticide. The oral LDso

value for rats is 113 mglkg and the dermal LDso value for rats is 2500 mglkg.(l)

The U. S. Public Health Service(2) reported that human volunteers breathed 423 mg/rrr

of DDT for .periods of one hour/day for six days. The only ill effect was eye irritration.

Barns(3) found no illness reported among workers using DDT throughout the world. The known

accumulation of DDT and its detoxication product DDE in animals and man(4.5) and the

. possibility that delayed. ill effects may occur after years of exposure to low levels makes it

advisable to set a low limit. DDT is half as toxic as lindane in single oral doses.

In contrast to earlier studies, formulating plant workers, Lehman(6) found that a dietary

level of 5.0 ppm for two years (which is equivalent to 17.5 mg/manlday) produced tissue

changes in ratS. This was confIrmed for male rats, but not for female rats Ortega.(7) Lehman(6)

found a dietary level of 1 ppm produced no effects in rats. A level of 1 ppm for rats

correspondsto human intake of3.5 mg/manlday. The tissue change caused by low exposure

levels of DDT is peculiar to rodents and occurs predominantly in the male rat although the

female stores more DDT and is more suspectible to its (DDT) toxic effects. The very different

histological effects of high level of DDT exposures occurs in all species and is not necessarily

rodent specifIc, and in general these effects parallel the overall toxic effects inparted by DDT.

The signifIance of these fmdings that are peculiar to rodents is open to question even 'in

_ connection with the health of the rodeJ1ts themselves.(6)

It has been shown that men tolerate 35 mg/manlday without any ill effect detectable by

themselves or by careful examination.(5.8) However, at this dosage of technical DDT, men

stored DDT in their fat at an average of 281 ppm, one reaching as high as 619 ppm.(8) One

formulating worker stored DDT at a level of 648 ppm without detected effect on his health.

-\i
Many formulating plant workers excrete DDA in their urine at rates as high or higher than those

encountered in volunteers fed DDT at a rate of 35 mg/manlday.(9) LawS(lO) reporteCl no ill effects

in workers exposed iI-to 19 years to up 18 mg/day of DDT.

So far as acute toxicity is concerned, it is known that a single dose of 286 mg produced

mild toxicpoisioning in a sick man weighing 47.5 kg.(ll) A single ingestion at the rate of about

10 mglkg produces moderate illness is some poeple, but not all, even though no vomiting

occurs; a single dose of 16 mglkgfrequentlyleads to convulsions.(l2)

Studies in mice have shown that DDT exposure results in an increased incidence of liver

tumors and in shortening oftheir latency period.(13) Hepatoearingenisis is dose related and DDT

induced hepatomas contiue to grow after cessation of exposure. The incidence of hepatomas in

male CF-l mice fed teehnical grade DDT at levels of 2, 10, 50, and 250 ppm was increased

50 to 55 per cent at the 2, 10, SO, dosage levels and 86 per cent at the 250 ppm level. A

significant increase in malignant 'liver tumors occurred at 250 ppm.(14) The TLV Committee(1S)

makes recommendations a n..V of 1 mg/m3 and a STEL of 3 mg/rrt by analogy with lindane,

and is view by the TLV Committee that such limits are sufficiently low to prevent acute DDT

poisioning by a large margin of safety and prevent significant accumulation in body storage

tissues. In general, DDT like other Organochlorine insecticides (i.e. chlorodecone and mirex)

are hepatotoxic inducing liver enlargement and centrolobular necrosis.(16) .
References:

(1) NIOSH: Registry of Toxify Effects of Chemical Substances, Vol. n, US Dept.

of Health, Education, & Welfare, NIOSH (1977).

(2) Neal, P. A., van Oettingen, W. F., Smith, W. W., Malmo, R. B., Dunn, R.

G., Moran, H. E., Sweeney, T. R., Armstrong, D. W., White, W. G.: Pub.

Health Report, Suppl. No.l77 (1944).

Hayse, W. J. Jr., Dale, W. E., Pirkle, C. I.: World Health Organization Ins.,

12 Working Papaers, No. 6.12, 17pp. (October 11, 1960).

Orte1ee, M. F.: Arch. Ind. Health 18:433 (1958).

Henderson, G. L. et al: J. Pharmocol. ExpIt. Therap. 170:173 (1969).

Hayes, W. J. Jr.: Am. J. Pub. Health 45:478 (1955).

Hsieh, H. C.: Arch. Ind. Hyg. & Occup. Med. 10: (1958).

Laws, E. R., Curley, A., Biros, F. J.: Arch Env. Health 15:766 (1967).

Barnes, J. M.; Toxic Hazards ofCertain Pesticides to Men, Monograph No 16,

World Health Organization, Geneva, (1953).

Hayse, W. J. Jr., Durham, W. F., Cueto, C. Jr,; Am. Med. Assoc. 162:890

(1956).

Ortega, P., Hayse, W. J. Jr., Durham, W. F., Mattson, A.: Monograph No. '\

43, p.27, US Public Health Service Pub. No.484 (1956). )

Mattson, A. M., Spillane, J. P., Baker, C., Pearce, G. W.; Anal. Chern.

25:1065 (1953).

Lehman, A. J.: Q. Bull. Assoc. Food Drug Off. U. S. 16:47 (1952).

Kuwabara, N., Takayama, S.: Proc. Jap. Cancer Assoc. 33:50 (1974).

Jones, H. H., et al.;, Documentation of the Threshold Limit Values - For

Chemical Substances in the Workroom Environment, p.l77 (1977).

(16) Lu, F., C.: Basic Toxicology: Fundamentals, Target Organs, and Risk

. Assessment, 2nd. p. 285, (1991).

(3)

(4)

(5)

(6)

.(7)

(8) , .

(9)

(10)

(11)

(12)

(13)

(14)

(15)
, I

1 •

APPENDIX B

MILLIPORE FIELD ANALYTICAL PROCEDURE

,:~,,-.
MIWPORE

EnviroGardTMOOT in Soil Test Kit

ENVR 00031

Performance Characteristics

4-chlorophenoxyacctic acid

Chlordane

Dicamba

Diuron

Unuron

MCPB

Intended Use

The EnviroGard DDT in Soil Test Kit is a qualiWive

or semi-quantitative field test for the d~teaion of

DDT and its metabolites DDD and DOE in soiL The

EnviroGard DDT in Soil Test Kit allows rapid semiquantitative saeening for DDT at 0.2, 1.0, and 10.0

pans per million (ppm) in soils.

Test Principles

The EnviroGard DDT in SoU Test Kit is based on the

use of polydo02l antibodies that bind either DDT or

DDT-Enzyme Conjugate.' These antibodies are

immobilized to the walls of the test wbcs. When

DDT is present in "',: sample, it competes with the

DDT-Enzyme COf):,,;.ue for a limited number of

antibody binding si~:.;.

• A sample containing DDT is added to a ~bc

containing Assay Diluent. DDT-Enzyme

Conjugate is then added to the test tube. The

DDT-Enzyme Conjugate competes with the DDT

for the antibody binding sites.

• AJr.er the inalbation, the unbound molecules are

'W"aShed away.

• A clear solution [Jf chromogenic Substrate is then

added to the tes: tube. In the presence of bound

DDT-Enzyme Conjugate, the clear Substrate is

converted to a blue color. One ehzyme molecule

can convc:n many Substrate molecules.

Since there are the same number of antibody

binding sites on every test tube and each test tube

receives the same number of DDT-Enzyme

Copjugate molecules, a sample that contains a low

concenuation of DD:r allows the antibody to bind

many DDT~Enzyme Conjugate molecules.

Therefore, a low concentration of DDT produces a·

dark blue solution. Conversely, a high conc:enuation

of DDT allows fewer DDT-Enzyme Conjugate

molecules to be bound by the antibodies, resulting

:n a lighter blue solution. '

*"NOTE: Color is inversely proportional to DDT

concentration.

Darker color-= Lower concentration

Lighter color=Higher concentration

The EnviroGard DDT in SoU Test Kit will not

differentiate between DDT, its met:bolites, and

other suuaurally simUar compounds, but will deteo:

'their presence to differing degrees. The following

table shows a number of compounds and th::

approximate concenttation of each required to yiele:

a positive result (Lower Limit of Deteaion or UD),

and the conc:entration required to inhibit one-half cf

the color developed by the Negative Control (1C50).

Concentration is in parts per million (ppm) in soU.

Compound Il.D ICSO

p,p'-DDT ucit .0.04 1.25

c:a.libmor)

p,p'-DDD , 0.01 0.3

p,p'-DDE 0.18 3.6 " o,p~DDT 4 93 ) O,p'-DDD 004 11

o,p'-uuE 3 '93

DDA 0.002 0.04

I auoropropylate 0.007 0.08

O11oro 'te 0.03 0.35

Dicotot 0.14 2

TetraC1iton 1.2 14

TnioDencarD 5 52 ,

Tebuconazote 7 95

Neburon 17 2B4

O11oroxuron 24 216

Monolinuron 2S 714

Didotop 70 >1000

The follOWing compounds have lower limits 0

deteaion> 100 ppm:

2,4-0

Chlorbromuron

Chlortoluron

Diflubenzuron

Lindane

MCPA acid

Mecoprop
, I

1 .

l

2

Precautions

• Treat DDT, solutions that contain DDT and

potentially contaminated soil samples as

h.a.z:a.rdous mate%Uls.

• Where appropriate, usc gloves, proper protcaive

clothing. and methods to contain and handle

hazardous ma.teri2l.

• Store 2ll test kit components at 4°C to SOC C39etp

to 46etp) when not in use. .

.• Do not freeze test kit components or expose

them to temperatUreS grca.tcr than 3rC (9getp).

• Allow all reagents to reach ambient tcmpcratUrC

(lSOC to 2T'C or 64etp to 81OP) before beginning

the test.

• Do not use test kit components after the

expiration date.

• -00" not use reagents or test tubes from one test

kit with reagents or test tubes from a different

test kit.

• Use approved methodologies to confum any

positive results.

• Do not dilute or adulterate test reagents or use

samples not c:allcd for in the test procedure; this

may give inac:cume results.

• Tightly recap the DDT calibrator vials to prevent

evaporative loss.

." DisUibution of DDT in soils may- be highly

variable. The use of a composite sampling

technique may be appropriaic. Development of

a sampling plan that assures adequate sample

number and distribution is the responsibility of.

the analyst.

• DDT is light sensitive. Store soU exuaas at 2°G

to 7°C. shielded from direa light.

Materials Provided

EnviroGard DDT in Soil Test Kit

This test kit contains the following items:

~o Antibody-Coated Test Tubes

1 vial of Assay Diluent

Envirooord DOT in Soil Te~

1 vial of Negative Control (methanol)

1 vial of 0.2 ppm DDT C3librator in meth3nol

1 vial of 1.0 ppm DDT C3librator in meth3nol

1 vial of 10.0 ppm DDT C3librator in methanol

1 vial of DDT-Enzyme Conjugate

1 vial of Substrate

1 vial of Stop Solution

1 2o-placc Test TuQe Rack

22 Pipette Tips, yellow (for the Gilson M-25 Microman~ Positive Displacement Pipetter)

Materials Required and Ordered

Separately .

See "Ordering Information". for the appropriate

catalogue numbers.

EnviroGard Soil Extraction Bottle Kit .

Use this kit for the extraction of DDT in soil

samples. This kit contains enough devices to

pi'occss 14 samples: .

• 14 30 milliliter (mL) Polypropylene Bottles with

sacw caps (each bottle contains stainless steel

mixing beads)

• 14 filtration caps

• 14 Mlll~ HV13 filters

• 18 Wooden SpatUlas

• 1 Syringe with coupler

• 1 Syringe coupler

• 14 Saew Top Glass Vials, 4.0 mL

• 14 Stoppers

• 18 Weigh Boats

Methanol

ACS reagent grade Methanol is required for soil

exuaction. but is not induded in the EnviroGard Soil

Extraaion .Kit. You must order it separately. (See

·Ordering Information.·)

Materials Required but Not

Provided

You will also need several other items. some of

which are induded in the EnviroGard SoU Field Lab.

(See ·Ordering Information· for the appropriate

catalogue number).
;:,emove the test tubes from the plastic ba~ anc

label them as follows·: . \)

/

Tybe Contcots

,Negative Control (. ',. i 0.2 ppm Calibr:ator ov.~'Jt . '1.0 ppm Cilibr:ator

(tl ((,1« 10.0 ppm Calibr:ator

sample 1

sample 2

I I

Envirocord DOT In Soli Test KII

• Gilson M-25 Microman Positive Displac::'.::1ent

Pipettor .

• Eppendor(l'M Repeater~ Pipettor and five

Combitips~ (3 x 12.5 mL, 1 x 5.0 mL, and 1 x 50

ml)

• Balance cap:1ble of :1cCW"3.tCly weighing 5 grams

• Millipore Differential Photometer or EnviroQuant Photometer

• Indelible muker for l:1bcling test tubes

• WatCh or timer • Clean running water or a wash bottle CX)maining

up or deionized water (500 mL)

• Calcul2tor (optional)

Suggestions for Pipettor Use

• Practice using both pipettors (positive

displacement and Repeater pipeuor) with water

and extra tips before you analyze your samples. .

• Use a new tip each time you use the Repeater

pipettor to avoid reagent cross-contamination.

Label three 12.5 mL tips ·DUuen~, ·Substrate·

and ·Stop,· and one 5.0 mL tip •Conjugate·.

• Draw the desired reagent volume into the

Repeater pipettor and dispense one porJon of

the reagent back into the container to properly

engage ~e ratchet mechanism. If you do not do

this, the· first volume delivered may be

inaccurate.

• To add reagents using the Repeater pipettor, . pipette down the side of the test tube just below

the rim.

• To add samples and calibrators using the

positive displacement pipetIor, pipette down the

side of the test tube just above the liquid level

• The' carryover volume of the positive

displacement tips is minimal, but may affect

results if you are going from a high to low DDT

concentration. Use a new pipetIor tip each time

you pipette a new unknown.

Assay Procedure

Collect/Store the Sample

1. Collect soil in appropriately-sized and labeled

conuiners.

2. Take ore to remove excess twigs, organic

maner and rocks or pebbles from the sample.

For best results, wet soils should be air-dried

overnight and thoroughly mixed before testing.

3. Store soU samples at 04°C C39°F). )

Prepare the Sample/Extract the Soil

1. Please follow the instructions from the

EnviroGard Soil Extraaion Bottle Kit to prepare

the soil ex:uaa before the assay.

2. 5 ml of Methanol will be1,1Sed to exuaa DD!

residue from a'5 gram soil sample. As per

instruaions, attach a 50 mL Combitip to the

Repeater pipetIOr and set the dial to 5. Delivel

once to add 5 mL of methanol to the cxuaaior.

vial, and cap tightly.

Perform the Test·

NOTE: Allow all reagents and sample extraas tc

reach room temperature before you begir.

the test. Do not analyze more than 20 test

tubes at a time.

1. The choice of calibrators to use in the test will

depend on the the seleaion of the analysis. The

use of two calibrators, may be appropriate if

saeening for a single level of DDT.

Tybe Label

NC

C1

C2

C3

51

52

etc.

• You are not required to perform the assay ir

duplicate; however, doing so will increase the

precision.

Place the test tubes in the test tube rack. Pusi

down on each tube so that it is held firmly anI

·does not fallout of the rack when shaken.

CAUTION: Do not ·snap· the test tubes into th

rack as this may result in a cracke'

tube.

2. Attach the 12.5 mL Combitip labeled -Diluen

to the Repeater pipettor and adjust the dial to

Add 500 microliters (~) of AsSay Diluent t

each test tube.

3. Atuch a clean pipette tip· to the Mic',

pipettor and adjust the dial to ·250·~ A )

of each calibrator (including Negative COllI,lOI) .

the corresponding test tube by placing the er
, I

(

"----'

---

L

. ,

c:

of the pipette tip against the side of the tube

(just above the level of the Assay Diluent) and

dispensing the volume. Use a clean pipette tip

each time.

CAUTION: Replace the caps on the calibrator

vials immediately after use to

minimize evaporation.

4. Using a clean tip for each sample, add 2S IJ,l of

each sample extraa to the appropriately-labeled

tcst tube.

5. Anach the S.O mL Combitip labeled ·Conjugate·

to the Repeater pipettor and adjust the dial to 1.

Add 100 J1l of DDT-Enzyme Conjugate to each

test tube.

6. Shake the test tube rack to mix for 10 to 15

seconds. Leave the test tubes undisturbed for 15

minutes.

7. Vigorously shake out the test tube contents into

a sink or suitable co~iner. Fill the test tubes to

overflOWing with cool tap or distilled water,

then decant and vigorously shake out the

remaining water.

Repeat this w:zsh step three more timcs, being

certain to shake. out as much Water as possible

on each wash. After the fmal wash, remove as

much water as possible by tapping the inverted

tubes on absorbant paper.

8. Attach the 12.5 mL Combitip labeled ·Substrate·

to the Repeater pipettor and set the dial to 2.

Add 500 J1l of Substrate to each tcst tube. Leave

the test tubes undisturbed for 10 minutcs.

NOTE: If a blue color does not oevelop in the

Negative Control test tube within 10 minutes

after adding the Substrate, the test is invalid

and you must repeat it.

Interpret the Results

You Can either interpret the results visually within 10

minutes after adding the Substrate to each tcst tube,

or you can perform a more precise analysis with a'

photometer after you add the Stop Solution.

Visual Interpretation

After you add the Substrate, wait 10 minutes then.

mix the tcst tubes by shaking them for a few

seconds until they are a uniform blue color.

'":ompare the sample test tube to the calibrator tcst

lbes against a white background. The tcst tube rack

In the kit is well-suited for this purpose.

~nvi!'09ord OOT in Soil T~sl k

NOTE: The word DDT in the interpretation

instructions below refers to ·total DDTO,

Le. the sum of p,p'-DDT, p,p'-DDD, and

p,p'-DDE.

• If a sample test tube contains more color than

the calibrator test tube, the sample contains DDT .

at a concentration ,lowerthan the calibrator. ,

• If a sample test tube contains less color than the

calibrator test tube, the sample may contain DDT

at a concenu:ation greazerthan the calibrator.

• If the sample test tube contains color that is

between the calibrator tcst tubes, the sample

contains DDT at a concentration .between the

c:alibrator concentrations.

• If a sample test tube contains appT'O%'tmlltely lbe

same amount of color as the calibrator test tube,

the sample contains DDT at a concentration

aJ1PrO%tmatelyequal to the c:alibrator.

• If the sample test tube contains less color than

the 10 ppm Calibrator tcst tube, you may dilute

a fraaion of the soil exuaa in. methanol (for

example, 1:100) and perform the assay ag2.in. To

determine the concentration of the diluted

exuaa multiply the result by the dilution faaor.

(Go to ·Semi-Quantitative Interpretation' for

fwther details.)

Photometric Interpretation

After you add the Substrate, wait 10 minutes then

add the Stop Solution to each test tube.

WARNING: Stop solution is IN Hydrochloric

acid.. Handle carefully.

Attach the 12.5 mL Combitip labeled ·Stop· to the

Repeater pipettor and set the dial to 2. Add 500 J.Ll

of Stop Solution to each test tube. This converts the

blue color in the tcst tubes to yellow.

NOTE: After you add Stop Solution to the test tubes,

results should be read within 30 minutes.

Millipore Differential Photometer

1. Place a water blank test tube containing 1.5 mL

of Milli-RO~ or Milli-Q~ water, or eqUivalent in

the left (reference) well.

2. Place the Negative Control test tube into the

right (sample) well. Record the optical density

(00) of the Negative Control.

3. Remove the :"1egative Control test tube and

replace it with the 0.2 ppm Calibrator test tube
I ,

-,

Envirogord DDT '" Soil Test Kit

to reaa.ivate the photometer. Record the result.

Repeat this step to determine the 00 for each of

the rc:II'1aining alibrators and for each sample.

Semi-quantitative Interpretation

Compare the 00' of each sample to the 00 of each

calibrator:

,NOTE: The word DDT in the interpreution . instructions below refers to -total DD~,

i.e. the sum of p,p'-DDT, p,p'-DDD, and

pJi-DDE.

• ' If a sample 00 is equal to the OD of a

calibrator, the sample contains DDT at a

concenuation appro:amalely equal to the

c::a1ibrator.

• If a sample OD is greater th2n a alibr:uor 00,

the sample contains less DDT than the callbr2tOr.

• If a sample 00 is lower than a calibrator OD,

the sample may conuin more DDT than that

calibrator. "-...

• If an, assay resUlt indicates that a soil sample

contains greater th2n 10 ppm tow DDT, but yOu

need more specific information, the soil exrrac:t

may be diluted 1:100 in neat methanol, and

assayed again. You must then multiply the

results of the re-assay by 100 to detennine the

approximate sample conc:cnuation.

NOTE: If you know in advance that the -action

level- of interest is greater than 10 ppm

total DDT in soil, the assay may be

modified to pinpoint that particular

concentration. For example:

If you wish to categorize samples 2S less than or

greater than 250 ppm, you should dilute all

sample cx.:....aas 1:250 in neal methanol (e.g. 20

CXU2ctplus 4.98 mL methanol) and compare

the diluted exuaas to the 1 ppm DDT kit

calibrator. Due to the 2So-fold dilution, the 1

ppm calibrator represents 250 ppm in the assay.

5

NOTE: If you are interested in aaion levels ---ter

than 1000 ppm, please contact Mh•.

Technic:a1 Services for assistance.

Example.

Actual 00 values will vary. This data is for

demonstr:Uion purposes only.

Tube OD InterpretatIon

NC 0.90

Cl (0.2 ppm) 0.75

C2 (1.0 ppm) 0.49

C3 (10.0 ppm) 0.35

51 O~ >0.2 pp~ < 1.0 ppr::

52 0.16 ...- > 10.0 ppm ..•

NOTE: The EnviroQuant' Photometer is .;0

available from Millipore. This dual wavelength

instrument measures the 00 at 450 nanometers

(nm~ minus 600 nm of all samples and calibrators,

and provides a printout of results. Sec -Ordering

Information- for the appropriate c:ualogue number.

Umitations of the Procedure

The EnviroGard DDT in Soil Test Kit ")

qualitativc/semi-quantitative screening test o.~ ..

Actual quantitation of DDT by EnviroGard

immunoassay is not possible due to the Test kitls

aoss-reactivity with DDT breakdown produas and

other similar compounds and to the Variations in

extraction efficiency inherent in the fast exuaaion

protocol desaibcd in this product insen.

Soil sampling error may significantly affect testing

reliability. The distribution of pesticides in different

.soils can be exucmely heterogeneous. Soils should

be dried and homogenized before analysis by any

method. Split samples (Le. for GC and immunoassay) should always derive from the same

homogenate.
!

6 Emnrogord DDT in Soil Tf!st Kit

L .. ~rdering Information

The following uble lists descriptions and caulogue numbers for the Envi.roGard DDT in Soil Test Kit, Soil

Extraaion Bottle Kit and related produas.

1 •

Description

EnviroGard DDT in Soil Test Kit

EnviroGard Soil Extraaion Bottle Kit

Methanol for soil extraction, 100 mL bottle

Milllpore Diffc::rential Photometer:

• 115 volt M, or

• 230V

EnviroQuant Photometer, nov, or

EnviroQuant Photometer, 220V

C:at:aJogue Number

ENVROOO 31

ENSP 000 30

ELat 000 07

ENVROOO 00

ENVR 00230

ENVRTI100

ENVRT2200

En Replacement Paper, 12 roUs E.NYR Tll 02

wiroGard Replacement Pipcttor TIps (available separately):

Positive displacement pipettor tips, 1-25 J1L range 2oo/pk (not

prcassembled)

• Repeater pipcttor tips, 5.0 mt, 100/pk

• Repeater pipcttor tips, 12.5 mL, 100/pk • Repeater pipcttor tips, 50 mt, 10/pk '

EnviroGard-Soil_Fie1d Lab includes:

• 1 Positive displacement precision pipetto~

• 1 Eppendorf Repeater pipetIor

• 1 Elearonic timer

• 13 Polystyrene test tubes, 12 nun X75 mm (for blanking the

spectrophotometer and sample dilutions)

• l·Poruble balance with 100 gram alibrator weight

• 1 Wash bottle,500 mL

• 4 Test tube racks, six-position

• 8, 5.0 mL Pipette tips for the Repeater pipettor, for 0.1 mL through

0.5 mL dispensing volumes •

• 4, 12.5 mL Pipette tips for the Repeater pipettor, for 0.25 mL through

1.250 mL dispensing volumes

• I, 50 mL Pipette tip for the Repeater pipettor. for 1.0 mL through

5.0 mL dispensing volumes

• 100 pipette tips, 2.0-25 J.1L (not preassembled)

• 100 pipette tips, 50-250 IJl. (not prcassembled)

-'>DUct Millipore Technical Service for kit component replacement

reordering information. (See the -Technical Assisuncc- seaion for

the number of the Millipore office nearest you.)

ENVRL04 09

ENVR L01 09

ENVRL0209

ENVRL0309

ENVR LOO 09
I t

EnYirogard DOT In SolI Tw Kit

( Technical Assistance .

For additional information about MUliporc produas, call the nearest Millipore office listed below.

QIIl toU-free 800-MII.1IPORE (80~S-S476) PAX Orders 508-024-8873

MJJ11pore Worldwide::

ADstr.I1Ja Germany

. A.C-N: (001) 239-818 Tel. (06196) -494-0 Singapore

Toll Free (OOS) 222-111 Tel. .(65) 253-2733.

In Sydney A%ea (02.) 428-7333 BoagEoDg

Tel. (852) 803-9111 Spa1D

M2.drid: 91-729-0-00

Ba.ra:1om: ~325-96-16

5eri11a: 95-425-68-77

Swa!eD

Sundbybcrg:

08-628-69-60 .

Swilzerbnd

Tel. (01) 945-3242

TalwaD

Tel. (886-2) 7001742

United lOngdom

aDdIrcbDd

Tel. (0923) 816375

UDIled St:ates ofAmc:ric:a

Tel. Toll Free

8QO.MIIJ.IPORE

(800-645-5476)

In Puenc Rico:

(809) 747-8444

InAll Other COWlUics:

Milllpore lntenec:h, U.s.A.

397 Williams Street

Marlborough. MA

01752-9162 US.A.

Tel. (50S) 624-8622

Fax (508) 624-8630

)

\

/

7
I f

8

EnYirogord DOT Soil TeSI .:

l General Limited WarTanty

workm2.DShip

MllliporeCorporation

when

eMlllipore-) warrants the produas manufactUred by it against defects in materials an

of

used in accordance with the applie::tble insuuaions for a period of one year from the cht

shipment of the products or where applicable, for a period not to extend beyond a produa's printe,

WARRANlY

expiration date.

OF

MILIJPORE

MERCHANTABILtn"

MAKES NO O'I'BER WARRANTY. EXPRESSED OR IMPlIED. 'I'HERE IS N(

OR FITNESS FOR A PARnctJI..AR PURPOSE. The warranty provide·

herein and the data, specifications and descriptions of Millipore produas appearing in Millipore's publishel

Millipore.

catalogues

Representations,

and produa Jiteranlre may not be altered except by express wriIIen agreement signed by an offio:r c

authorized

oral or written, which are inconsistent with this warr.anty or such publications are nc

and if given. should not be relied upon. .

option,

In the event of a breach of the foregoing wam.nty, Millipore'ssole obligation shall be to repair or replace,at j~

period,

any produa or part thereof that proves defective in materials or workmanship within the warranty

herein

provided the customer notifies Mi1lipore promptly of any such defea. The exclusive remedy providec

shall not be deemed to h2.ve failed of essernbJ purpose so long as Millipore is willing to repair 01

replace any nonconforming Millipore. produa or pan. MUllpore shall not be llablc for consequential.

1.uddental, sped210r any other indlrect d;amagcs resulting from economic loss or propc::l'tY dam;age

sustained by a customer from the usc of its procluas. ,However. in some States -the purchaser may have

rights under state law in ;addition to those provided by tim warranty.

Sa~ety

To receive complete s:::afcty infonnation on this product,·comaa th~ nearest MiJlipore office'and request Material

. Safety.Data Sheet documents P70002, P34782, P34207 and P34210.

Acknowledgmellt

This kit was developed in collaboration with the Commonwealth Scientific and Industria! Research Organization

(Australia) using reagents produced and supplied under exclusive license to Millipore and ImmunoSystems

. incorporated.

CopyrigtSc 1990( MIWpon: Ccrporu.Ica.

MiI1ipcre"is a rcgisU:red of Corpcruicn.

EnviroGud, MiIJ=. aDd MiI1i-IlO an: &ndemaria of MilIipore CarponrilxL.

Mictomztl

Ccmbi1ip. Eppcrldorf anc11lepcucr an: usdemarics of Eppaldcrf-Ncchdcr-Hiaz GmbH is a of Gilscln Med.ical ElCCU'OnlCS

P35409. Rev - 2/24/94
MILLIPORE

2nviroGardTM Soil Extraction Bottle Kit

ENSP 000 30

• I

Intended Use

The'EnviroGardTM Soil Extraction BottIe Kit enables

you to extract pesticides and industrial contaminants

from soil. This kit contains enough material for

14 soil samples.

Parts of the Kit

This kit includes the followi.-, items:

-4

Part Name Example

18 Weigh boats \ )

) IS Wooc,. spatulas (

oil extraction bottles

(each containing three

mixing beads) with caps

1 Syrinr, :,:0 cubic 0 >-

centimc'::,',. (cQ..~~~._

coupler

1 Syrin:;e coupler ... .'

14 Millex~-HV13 filter c[r units

14 Filter caps £Go

14 Glass storage vials

(mL)

with caps, 4 milliliters

. 0•

14 Stoppers T

"E: The syringe coupler, Millex~-HV13 filter

units, storage vial caps, and stoppers are

packaged under the weigh boat

companment.

Materials You Supply

You need to supply:

• Methanol

• Portable balance

• Pen or marker

• Timer _.':''"''"""=.-._'-

• EppendorfTM Repeate~ pipettor with 50 mL

.Combitip~ (included with the EnviroGard Soil

Field Lab)

• Soil extraction bottIe rack (included with the

EnviroGard Soil Field Lab)

NOTE: The bottIe rack is optional. Use it to extrac..

up to six soil samples simultaneously.

Soil Preparation and Extraction

Procedures "

The following sections describe how to:

• Prepare the soil sample

• Extract the soil

• Filter the sample by squeezing the bottle or by

using a syringe to pressurize the bottle.

Prepare the Soil Sample

• 1. Collect a soil sample. Then locate these items:

• Weigh boat

• Wooden spatula

• Portable balance

• Soil extraction bottle with cap

• Pen or marker
I t

- .:2:.- .....:E;;,;n...;vi,;,;;roGa~,;,;;rd;;.;SO;.;;.;il.:E;,;;xt;,;,;ro:.:c:.:.::tio:.:n.:..:80=It::.le..:;K~it

NOTE: The grams ofsoil may vary, depending

on the assay you use. Refer to your

EnviroGard test kit instructions.

.~pore the Soil Sample, Continued

2. Place the weigh boat on the balance and press

ONIHEMORV. Then weigh out 5.0 grams (g) of

soil into the weigh boat using the wooden

spatula. If you have clay samples. add an

additional 5.0 mL of methanol to

each sample. Otherwise, the samples

soak up all of the methanol. leaVing

liale or no excess liquid to decant

When interpreting results, factor the,

dilution into the calculations. For

example. you will need to multiply

each of the calibrator. concentrations

by the ratio of methanol (in mL) to'

soil (in g). See your test kit

instructions for details. '

Then add the methanol to each sample in the

soil extraction bottle. (Refer to the Eppendorf

Repeater instruction manual for details on

pipettor use.)

CAUTION:

) s· I

3. Uncap the soil extraction bottle and label it

appropriately. Then fold the weigh boat into the

mouth of the bottle and pour in your sample.

Discard the boat and spatula appropriately.

Repeat steps 1-3 for each 'sample you want to

~t.

2. Screw the cap back onto the extraction bOllle.

CAUTION: Be sure that the extraction bOltle cap

is tight to prevent leaks.

3. Set the timedor two minutes -and agitate the

bottle for that length of time.

Extract the Sample

Locate these items before you extract the sample:

• Eppendorf Repeater pipeuor with aSO mL

Combitip

0;- ·· .

. .. .:.

· . · . · . · . · . • 0'

"

• Methanol • Filter the Sample

• Timer'

This section describes' how to filter the sample in

two ways. For example. you can:

NOTE: The amount of methanol you add depends

on the EnviroGard test kit you use. Refer to

your EnviroGard test kit instructions.

• Squeeze the bottle

OR

(

,--- ,.lract the sample:

1. Insert the Combitip into tbe Eppendorf Repeater

pipenor and position the volume dial to 5. (This

is equivalent to 5 mL,)

• Use a syringe to pressurize the bonle
f I

EnviroGard Soil Extraction Bortle Kit

( . .. ••. _t" the Sample by Squeezing the Bottle

Locate these items before you filter your sample(s):

• Filter cap

• Millex-J:i'V13 fllter unit.

• Glass storage vial and cap

1. Remove and d~card the extraction bottle cap.

Then tightly screw a fllter C:" on the bottle.

Attach the MiIlex-HV13 filte: 'ii:it to the filter cap.

o 2. Invert the extraction bottle. Insert the filter

outlet into the mouth of the glass storage

vial. Hold the vial steady and squeeze the

bottle until you filter the necessary amount

of soil extract.

NOTE: The amount you need depends on

the EnviroGard test kit you use.

Refer to your kit instructions.

3. Remove the extraction bottle from the vial

and discard appropriately.

4. Cap the glass storage v~.

Now you can analyze the soil extract with the

EnviroGard test kit. See your kit for details.

. .

Filter the Sample by Pressurizing the Bottle

Locate Ulese items before you nIter your sampleCs):

.

.

1. Remove and discard the extraction bottle cap.

Then tightly screw a filter cap on the bottle.

Attach the MilIex-HV13 filter unit to the filter cap.

2. Draw air into the syringe by pulling the

plunger to the 20 mL marker.

Then Twist the syringe assembly fu-mly onto

the open end of the filter unit.

3. Push the plunger down. This creates enough

pressure in the soil extraction bottle to drive

the soil extract through the filter.

4. Hold the Millex-HV13 nIter unit and twist off the

syringe coupler to remove the syringe assembly.

Immediately invert the pressurized extraction

bottle and insert the filter outlet into the mouth

of the glass storage vial.

)

•

•

•

I.

Filter caps

Millex-HV13 nIter unit

Syringe, 20 cc with coupler

rlass storage vial with cap

CAUTION: You must hold the assembly or

place it in a rack to prevent tipping.

If you use a rack, do not leave the

assembly unanended; the soil extract

may overflow and contaminate your 0

work area.

• Stopper

• Soil extraction bottle rack. six-place (optional)
, I

4

( ne Sample by Pressurizing the Bottle, Continued

4. Wait until you filter the necessary amount of soil

extract into the vial. Then remove the extraction

bottle from the vial.

NOTE: The amount you need depends on

the EnviroGard test kit you use.

Refer to your kit instructions.

EnviroGard Soil Extraction Bottle Kit

5. Put a stopper onto the filter outlet to stop the

flow. Then discard the extraction bottle

appropriately.

6. Cap the glass storage vial.

Now you can analyze the soil extract with the

EnviroGard test kit. See your kit for details.

Or.dering Information

T"'- C'')l1owing table 'lists the catalogue numbers for the EnviroGard Soil Extraction Bottle Kit and related

=t5:

Description Catalo~ue Number

EnviroGard Soil Extraction Bottle Kit, 14/pk ENSP 000 30

I

Methanol, 100 mL ELCR 000 07

EnviroGard Soil Field Lab ,ENVR LOO 09

Soil Extraction Bottle Rack, six-place ENVR SP 030

Technical Assistance

Call the office in your country to get additional product information, technical service, or order parts.

NOTE: To receive the current edition of our lAboratory Products catalogue, contact Technical Service at the

Millipore office closest to you. .

Millipore Offices

Australia

A-C-N·

(V "Q 818

e

( .... ~J .o!22·111

In Sydney Area

(02) 428·7333

Austria. Central Europe: C.LS.,

Africa, Middle-East and Gulf

In Austria

(43) 1 877 8926

Baltic Republics

In Finland

(90) 801 90 i7

Belgium and Luxc:mbourg

(02) 242.17.40

Brazll

(011) 548-7011
EnviroGard Soil Extraction Bottle Kit

J ( ore Offices, Continued

Canada

Toll Free

1-800-268-4881

In Toronto Are::!

(905) 678-2161

China. People's RepubUc of

Beijing: (86) 1-5135114

Guangzhou:

(86) 20-686217

Shanghai:

(86) 21-3203856

Czcc:h RepubUc

(42) 2-35 02 27/

(42) 2-3523 75

Denmark

46590023

Flnland

(90) 8045110

France

(1) 30.12.70.00

Germany

(06196) 494-0

I. Kong

(8S,.!) 803 9111

Hungary

(36) 11-6686-74

General -Limited Warranty

India

Dangalore:

(812) 394-657

Italy

Milano: (02) 25078.1

Roma: (06) 5203600

Padova: (049) 8803720

Japan

(03) 3474·9111

Korea

(82-2) 5548305

MaIzysia

(60) ,.7571322

MexIco

(525) 576-96-88

The Netherlands

(01608) 22000

Nor'W2y

4722678253

Poland

(48) 2/669 12 25/

(48) 2/663 7031

Singapore

(65) 25,.2733

Spain

Madrid: 91·7290300

Barcelona: 93-325 96 16

Sevilla: 95-425 68 77

Sweden

Sundbyberg:

08-6286960

Swlczerland

(01) 945-3242

Taiwan

(~2) 7001742

U.I<. and Ireland

(0923) 816375

u.s.A.

1-800-MIWPORE

0-800-645-5476)

In Western states,

Alaska and Hawaii

1-800-632-2708

In Pueno RiCo

(809) 747-8444

In A.ll Other CounU"iCS

Millipore Intenech

397 Williams Street

Marlboro, MA

01752-9162 us.... (508) 624-8622.

or fax orders

(508) 624-8873

5

-')

Millipore Corporation ("Millipore") warrants the products manufactUred by it against defects in materials and

workmanship when used in accordance with the applicable instructions for a period of one year from the date

of shipment of the products. Mn.LIPORE NO OnrER WARRANTY. EXPRESSED OR IMPUED. 1HERE

IS NO WARRANIY OF MERCHANTABWTY OR FITNESS FORA PARTICUlAR PURPOSE. The warranty

provided herein and the data, specifications and descriptions of Millipore products appearing in Millipore's

published catalogues and product literature may not be altered except by express written agreement signed by

an officer of Millipore. Representations, oral or written, which are incoI:1Sistent with this warranty or such

publications are not authorized and if given, should not be relied upon.

In the event of a breach of the foregoing ~rranty, Milliporc's sole obligation shall be to repair or replace, at its

option, any product or part thereof that proves defeaive in materials or workmanship within the warranty

period, provided the customer notifies Millipore' promptly of any such defea. The exclusive remedy provided

herein shall not be deemed to have failed of its essential purpose so long as Millipore is willing and able to

repair or replace any nonconforming Mil1ipore product or part. Milllpore shall not be liable for

consequential, incidental, special or any other indirect damages resulting from economic loss or

property damage sustained by any customer from the use of its products..

C' ght 1994, Millipore Corporation.

tv. .)re is a registered tr2demark of Millipore Corporation or an affiliated company.

EnviroGard and Millex are trademarks of Millipore Corporation or an affiliated company.

Eppendorf, Repeater, and Combitip are trademarks of Eppendorf.Netheler-Hinz GmbH.

P3S249, Rev. A,4/94

)
APPENDIX C

LABORATORY ANALYTICAL RESULTS DOCUMENTS
K~MRON Environmental Services ,109 Star!ife Park

Marietta, Ohio 45750

Phone: (614) 373-4071

.-

Kem,·~·~

iNVIIIONOlINTAO, ,~ >

1 KEMRON Environmental Services Order #: N4-11-461

7!126 Jones Branch Drive Dale: May 11, 1995 16:43

McLean, VA 22102 Work ID: DPSC-Philadelphia Date Rcccived: 11119/94 . Attn: Dana 1ackson Pate Complered: 12108194

Purchase Order: Verbal Cliem Code: KEMRON Me

Invoice Number: 52lS3~

SAMPLE IDENTIFICATION

Sample Sample Sample sample Number Description Number Descnprion

01 DR7 02 BH7~6'

03 BH 76-8' 04 BH 7 S.lO'

OS BH 710-12' 06 BH 7 lZ-14'

07 BR 714-16' 08 BH 716-18'

09 BH71S.20' 10 BH 64-6' , , 11 BH66-8' 12 BH 68-10'

13 DR 610-12' 14 BH 612-14'

15 . BH 614-16' 16 BH 616-18'

AU results on solids/sludges OTt! reponed "AS RECEIVED· unless orherwise

spedlled. 71zis TqJOrt sholl nDt be reprodJJ.ced. except in

full. wilJu:lUl iJu: wriurm approval ofKEMRON.

--.__._--

Certified by

Leslie Bucina
01-.-1 r- I''-J-, ~- n3V ...·~~1' ~. , lw.' •• '01. ',)0,/_.

'Jrder # N4·11-461

May 11. 1995 16:44

KEMRON ENVIRONMENTAl. SERVICES

RESULTS BY SAMPLE

This is 10 cenify lhm the following samples were analyzed using good

laboratory praaices to .~how thefollowing results.

Page 2

SAMPLE ID: 01 BH 7 Cottected: 11/17/9416:30 Category: WATER

TEST DEIECnON

DESCRIPTION RESULT LIMIT

DATE

UNITS ANALYZED BY METHOD

Pe~roleum Rydroear~ <1 , ,mg/L 11/22/94' WDL 418.1

SAMPll In: 07 BY 714..16' Collecteli: 11/1619416:30 Categmy: son.

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALVZED BY MElBOD

Percent Solids

Petroleum Hydrocarbons

65

39,000

1

2500

'we. 11/28/94 WDL Gravimetric

mg/kg 11/28/94 WDL 3550/4:1.8.1

SAMPLE 10: 09 BH 7 18-20' Collected: 11/16/94 17:30 category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALYZED BY METHOD

Perccne Soli~

Petroleum Hydrocarbons

~,

300

1

2S

\ ~. 11/29/94 WI:lL Gra.vimctric

llI9/kg 11/28/94 WOL :3550/418.1

SAMPLE ID: 13 BH 610-12' Collected: 11/1819410:45 Category: SOIL

TEST DETECTION DA:TE

DESCRIPTION RESULT UMIT UNITS ANALVZED BY MEmOD.

Percent solids

Petroleum Hydroc:o.rbono

84

2;0

1

2~

t wt. 11/29/94 WOL Cravimet.ric:

"'S/kg 11/26/D4 Wr>L 3550/41.6.1

SAMPLIl.ID: 16 BH 61~18' Collected: 11/18/9411:30 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALYZEDBY METHOD

c.

Percent solida

Petroleum Hydrocarbons

67

290

1

2$

t wt:. 11/28/94 WDL Gravimetric

mg/lcg 11/28/94 MDI. 3SS0/41B.1
f I 05-11-95 03:: 3?M FROM !::}t~JK n. VALLEY LAB TO WAPORA MCCLEAli CORP. POO4/023 .

Ord~ # N4-11-461

( May 11, 1995 16:44 .

'KEMRON ENVIRONMENTAL SERVICES

. TEST RESULTS BY SAMPLE

Test Code: SPE GC

Sample Description: DB 7'

Test Description: Special Request

Analyst: EeL 111'23194

Instrument: HP_IVR Injeeted: 12102194

Lab No: OlA

File #: 068ROSOl

Factor: 1 Units: uglL

C;ollectee1: 11/17/9416:30

Categcny: WATER

Verified: RJW

CASN COMPOUND

DETECTION

RESULT· LIMIT

NO'I'Il:S Am) l:lUINITIONS FOR THXS S1IMI'XoE

DET LIMIT • DETECTION LIMIT

NIh: NONE DETE:C'I'ED

• ... SEMI-QtD\N'1'I'IA'l'IVE SCREEN ONLY

~,4' DDT 0.19 0.1
05-11-95 03:53PM FROM KEMRON QE. VALLEY LAB TO WAPORA MCCLEAN CORP. POOS/OZ3

'jrdcrlf N~1l-461

May 11, 199' 16:44

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 4

Test Code: SPE GC

Sample Description: BH 714-16'

Test Description: Special Request

Analyst: MLS ~etcd: 11/28194 In.~ment: lIP_10 Injected: 12/06/94

Lab No: 07A

File #: 0l7ROI0l

Factor: 66 Units: nglkg

Collected: 11116194 16:30

Category: SOn.

Verified: lUW

50-29-3

COMP01JND

4,4' DDT

DETECTION

RESULT LIMIT

NO 6.6

NOTES ANP PEFINX'nCNS FOR THJ:S SAMFtaE

DET LIMIT D ~ET!CTION LIMIT

liD .. NONE DE'I'Ec::'1'EO

• =SEMI-QUANTITATIVE Sc::RE:AN ONLY

....__... _....-

-:-~.-
I , '::-11-Q~ ..; •• toI _ O~'::;~'M· ."" ... .",. ..\ POirm ....

t~;'!~1iDN ,:)••" "'_.' ...:; 1iH7";V 1. iJ. ..,r. rIB TO WA?OR.~ MCCLEAN COR? P006/023 .

Order # N4-11461

( May 11. 1995 16:44

'KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPI.E

Test Code: SPE GC

Sample Description: BH 'f 18-20I

Test Description: Special Request

Lab No: 09A Collected: 11/16/9417:30

Category: SOIL

.Analyst: MLS Extracted: 11/28/94 File #: 01SROI01

InstrUment: HP_10 Injected: 12/06/94 Factor: 66 Units: ug/kg Verified: RJW

DETECTION 1 1 CASH COMPOUND RESULT L1MIT

50-2~-3 4,4' DDT 1m 6.6

NO'l'ES Am) Iml':tN%'!'ICM!: Fen 'nne ~:t.E

DE'1' LIMIT • DETECTION LIMIT

ND = NONE DE!'EC'I'EO

• .. SEMI-OtJAN'I'!TATIVE SCREEN ONLY

)

, .
0::-j'1-0;' n3';:;~pv ..' • III. I.i ''''''' \II. J:Jl

"-f\V "~'li:lor ~TT '1I.T· T"t' L' ro. !l':V!r. !.,:~., !l vri.lr...1!.1 J'.!i TO WAPORA MCCLEAN CORP. P007/023

(

" )rdcr # N~1l-461

May 11, 1995 IG:44

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 6

Test Code: SPE GC

Sample Description: BH 610-U'

Test Description: Special Request

Analyst: MLS Ematted: 11/28/94

Instrument: HP_IO Injected: 12/06/94

Lab No: 13A

file #: 016ROIDl

Factor: 66 Units: ug!kg

Collected: 11/18/94 10:45

Category: SOn.

Verified: RJW

c

CAS#

NOn:s: .llNP t)~INJ:'J:'Iom: FOR 'J:'H1'1i &N'II'LE

DtT LIMIT = DETECTION :LIMIT

ND = Notre DETECTED .. = SE:MI-QUANTITA'I'IVE St::REEN ONLY

COMPOUND

4,4' DD'I'

DETECTION RF..~ULT LIMIT

NO 6.6
"

n:-1;-C~ ••• v ... O~·~~DM v.";v-. -~OM :~. ~-t~or !.:~~ !-~ Jt. ~"~!'LEV ~P•.L • L'Bl'. TO WAPORA MCCLEAN CORP. P008/023

Order # N4-11-461

May 11. 1995 IG:44

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

.~I

Page, ./

Test Code: SPE GC

Sample Description: BH 616-18'

Test Description: Special Request

Analyst: MLS Extracted: 11/28/94

InstrUment: HP_10 Injected: 12/05/94

Lab No: 16A

File #: DI2RDIOI

Factor: 66 Units: uglkg

Collected: 11/18/94 11:30

Category: SOIL

Verified: RJW

!

CASN

SO-2~-3

NOT:~ J\!m D.F%N:t'I'%ONS FOR 'nU~ S1\H~L.

DET LIMIT =DETECTION LIMIT

rm = NCmE: DETECTED * .. SEMI-QUANTITATIVE SCREEN ONLY

.- --... -•... _.

COMPOUND

4.4' DIn'

DETECTION

RESULT LIMIT

Nt> 6.6

- ~--=..- "-'-
{

\._-

KEMRON Environmental Services

109 Star/ite Park .

Marietta, Ohio 45750

'Phone: (614) 373-4071

KemROll

KEMRON Env1ronmental Services

792S Jones Branch Drive

McLean, VA 22102

Attn: Dana Jackson

Order #: N4-11-527

Date: December S, 1994 IS:41

Work ID: S057-004/USAC-DDT Investigat. Date Received: 11/29/94

Date Completed: 12/0S/94

Client Code: KEMRON_MC

SAMPLE IDENTIFICATION

Sample

Number

01

03

05

07

09

11

13

15

Sample

Description

BHS/4-S'

BHB/B-I0'

. BHB/12-14'

BHS/IB-20'

BH9/S-S'

BH9/l0-12'

BH9/14-1S'

BH9/H20

Sample

Number

02

04

OS

OS

10

12

14

Sample

Description

BHS/6-S'

BHS/I0-12'

BHS/I4-1S'

BH9/4-S'

BH9/B-I0'

BH9/12-14'

BH9/20;22'

(

AU results on solids/sludges are reported'~RECEIVED" unless otherwise

specijiecL. nus report shall not be reproduced. except in

ju11. withDut the wrtt:ten approval ofKEMRON.

LesUe BuclDa
f ,

Order # N4-11-527

December 6. 1994 16:41

KEMRON ENViRONMENTAL SERVICES

RESULTS BY SAMPLE Page 2

nus is tD certify that thefoUowing samples were analyzed. using good.

.laboratDry practices to show thefollDwtng results.

SAMPLE 10: 05 B~8/12-14' Collected: 11/22/94 15:00 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANAL'YZED BY METHOD

Percent Solids

Petroleum Hydrocarbons

81

450

1

25

"wt. 11/29/94 BKK Gravimetri

mg/kg 11/30/94 WDL 3550/418.1

1 •

SAMPLE 10: 07 B88/18-20' Collected: 11/22/94 15:30 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANAL'YZED BY METHOD

Percent Solids

Petroleum Hydrocarbons

60

<25

1

25

"wt. 11/29/94 BKK Gravimetri

mg/kg 11/30/94 WDL 3550/418.1

SAMPLE 10: 12 B89/12-14' Collected: 11/21/94 16:25 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANAL'YZED BY METHOD

Percent Solids

Petroleum Hydrocarbons

83

<25

1

25

"wt. 11/29/94 BKK Gravimetri

mg/kg 11/30/94 WDL 3550/418.1

SAMPLE 10: 14 B89/20-22' Collected: 11/22/94 11:30 Category: SOIL

TEST DETECTION

DESCRIPTION RESULT LIMIT

DATE

UNITS ANAL'YZED BY METHOD

1 ' Percent Solids

Petroleum Hydrocarbons

6S

<25

1

25

"wt. 11/29/94 BKK Gravimetri

mg/kg 11/30/94 WDL 3550/418.1

SAMPLE 10: 15 B89/H20 Collected: 11/22/94 11:00 Category: WATER

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANAL'YZED BY METHOD

Petroleum Hydrocarbons 12 1 mg/L 11/29/94 WDL 418.1
f

Order # N4-11-527

December 6, 1994 16:41

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 3

(

"- Test Code: SPE_GC

Sample Descrtptlon: BB8/12-14'

Test DescI1ptlon: S~~=ial Request

LabNo: 05A Collected: 11/22/94 15:00

Categmy: SOIL

COMPOUND

Analyst: MLS

Instrument: HP_9F

CAS'

Extracted: 11/29/94

Injected: 11/30/94

File #: 009F0101'

Factor: 66 ** Units: UG/KG

DETECTION

RESULT LIMIT

Verified: CLC

50-29-3 4,4' DDT ND 6.6

(

NOTES AND DEFINITIONS FOR 'l'BIS SAHPLB

DE'1' LntI'1' • DE'l'EC'l'ION LntI'1'

ND • NONE DE'l'EC'1'ED

* • SEHI-QUANTI'l'A'1'IVE SCREEN ONLY ** • ELEVA'l'ED DE'l'EC'l'ION LIla'1' DOE '1'0 SAMPLE HA'l'RD:
I f

Order #.N4-11-527

December 6. 1994 16:41

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 4

Test Code: SPE_GC

Sample Description: BH8/1S.20·

Test Description: Special Request

Lab No: 07A

-----,

Collected: 11/22/94 15:~

Category: SOIL

Analyst: MLS

Instrument: HR_9F

Extracted: 11/29/94

Injected: 11/30/94

File #: 010F0101

Factor: 66** Units: UG/KG Verified: CLC

CASt

50-29-3

COMPOUND

4,4' DDT

DETECTION

RESULT LIMIT

ND 6.6

NOTES AND DEFINITIONS FOR '1'HIS SAMPLE

DET LIHI'1' • DE'l'EC'l'ION LIHI'1'

NO II: NONE DE'1'EC'l'ED

• • SEHI-Qt7AN'l'I'1'A'1'IVE SCREEN ONLY •• • ELEVA'l'ED DETEC'l'ION LIHI'1' D'O'B '1'0 SAMPLE Hl..'l'RIX
Order #. N4-11-527

December 6, 199416:41

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE 'Page 5

(

Test Code: SPE_GC

Sample Description: BH9/12-r14' .

Test Description: Special Request

Lab No: 12A Collected: 11/21/94 16:25

Category: SOIL

Analyst: MLS

Instrument: HP_9F

Extracted: 11/29/94

Injected: 11/30/94

File #: OllFOIOl

Factor: 66** Units: UG/KG Verified: CLC

CASt

50-29-3

COMPOUND

4,4' DDT

DETECTIONRESULT LIMIT

NO 6.6

(

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT • DETECTION LIMIT

NO • NONE DETECTED • E: SEHI-QUANTITATIVE SCREEN ONLY ••• ELEVATED DETECTION LIMITS DUE TO SAHI?LE MATRIX
KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

I f

Order #N4-11-527

December 6. 1994 16:41

Test Code: SPE_GC.

Sample Description: BH9/20-22' . Test Description: Special Request

Lab No: 14A

Page 6

'1

Collected: 11/22/94 11:~('

Category: SOIL

Analyst: MLS

Instrument: HP_9F

Extracted: 11/29/94

Injected: 11/30/94

File #: 012FOIOI

Factor: 66 ** Units: UG/KG Ver1fied: ctc

1 ,

CAS' COMPOUND

4,4' DDT

DETECTION

RESULT LIMIT

NIl 6.6

NO'l'ES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT • DE'l'ECTION LIMIT

NIl • NONE DE'l'ECTED

* • SEMI-QUANTITATIVE SCREEN ONLY

**, • ELEVA'l'ED DE'l'ECTION LIMITS DOE TO SAHPLE HA'l'RIX
Order # N4-11-527

December 7. 1994 14:43

KEMRON ENViRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 7

. Test Code: SPE_GC

Sample Description: BH9/B20

Test DesCription: Special Requeat

Lab No: 15B Collected: 11/22/94 11:00

Category: WATER

Analyst:MLS. Extracted: 11/29/94

Instrument: HP_10F Injected: 12/05/94

File #: 011F0101

Factor: 2 Units: UG/L Verified: CLC

(

CAS'

50-29-3

NO'l'BS AND DEFINITIONS POR 'l'HIS SAHPLB

DET LIKIT • DETECTION LIHI'l'

1m • NONE DB'l'BC'l'ED • • SEKI-Qt1AN'1'I'1'A'1'IVE SCREEN ONLY

COMPOUND

4,4' DDT

DETECTION

RESULT LIMIT

1 0.2
Order # N4-11-527

December 6. 1994 16:42

KEMRON ENVIRONMENTAL SERVICES

TEST METHODOLOGIES Page 8

I •

Percent SoUds

EPA Method 160.3 - Gr4v~etric, Dried at 103-105 Degrees C

To convert test results to -Dry Weight Basis- use this formula:

RBst7L'r (RBPOR'l'BD) X 100

RESULT (DRY WT.) • ------------------------ PBRCEN'l' SOLIDS

EPA Meth~J 3510/~18.1 - Total Petroleum Bydrocarbons (IR)

EPA Method 3550/418.1 - 'rotal Petroleum Bydrocarbons (IR)

-\

I

,I
0

- .,. ,-. - r·~· - ..." i"-; J -.,. - I'''' ""! -'Il'. till •• J. \,.; ..... .,/ • .,1. FROM IEMRON DE. VALLEY LAB F009;'023

KEMRON Environmental Services , ,109 StarJite Park

Marietta, Ohio 45750

Phone: (614) 373-4071

KemROn

KEMRON Environmental Services

7926 Jones Branch Drive

McLean. VA 22102

Atm: Dana Jackson

Invoice Number: 52841

Order #; N4-12.Q17

Date: May 11. 1995 16:46

Work ID: DPSC·DDT Investigation Date Received: 12/01/94

Date Completed: 12/12/94

Client Code: KEMRON_MC

-"";~-' -

Sample

Number SampleDescription

SAMPLE IDENTIFlCATION

Sample

Number Sam{llcDescnption

01 BH& 22-24'

03 BHS 10-12'

OS BHS 14-16'

07 BHS 18·20'

09 BH16 12-14'

11 BH16 18-20'

13 BH156-8'

15 BR1S 10-12'

17 SBIS 14-16'

19·' ----lm:l5 18-20'

21 BH-l 4-6'

23 BH-18-10' , 25 BH-1 12-14'

27 BH-l 16-18'

02

04

06

08

10

12

14

16

18

20

22

24

26

28

BH824-25'

BH512-14'

BHS 16-18'

BH1610-12'

BH1614-16'

BH1S 4-6'

BHlS 8-10'

HB1S 12-14'

HB-lS 16-18'

1520-22'

BH-I6-8'

BH-I10-12'

BH-l 14-16'·

BH-l 18-20'

r'

(

AU results on solids/sludges are Tt!po~d "AS RECEIVED ", unless otherwise

specifjed. This Tt!pon shall not be reproduced. except in

full. wilhouz the written approval ofKEMRON. '

Certified by

Leslie BuciDa
, I 0:-11-95 ~3:53PM :D.10/023

Order # N4·12-o17

( May 11. 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

, RESULTS BY SAMPLE

2fzis is to certifY thtZ1 thejollowing samples were analyzed using good

laboratory practices co show thefollowing results.

SAMPLE ID: 01 BH8 22-24' Collected: 11/23/94 09:00 Category: SOn.

TEST DETECTION DATE

DESCRIP110N RESULT LIMIT UNITS ANALYZED BY METHOD

Percent Solids

Petroleum Hydrocarbons

851

310

1

25 , \oft. J,2/In/94 BMJ< Gravimetric

mg/kg 12/02/94 SSS 3550/418.1

SAMPLl! ID: UZ .BUS 24-~' Collected: 11/2319410:15 Category: SOIL

TEST DETECTION

DESCRIPTION RESULT LIMIT

DATE

UNITS ANALYZED BY MEmO»

Percent Soliw:

Petroleum Hydrocarbons

87

2000

1

25

'wt.. 12/01/94 BMX Gravimet.ric

ma/kg 12/02/94 SSS 3550/418.1

SAMPLE ID: 06 BH516-18' Collected: 11/29/9409:45 Category: SOIL

TEST . DEtECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALyzp;I) BY METHOD

Percent Solids

Petroleum Hydrocarbcns

69

85

1

2S

t wt.. 12/01/94 BMK Grav1r. )

ms/kg 12/02/94 SSS 3550/4...

SAMPLE 10: 07 BH518-Z0' Collected: 11/29/9410:00 Category: SOn.

TEST DETECTION

DESCRIPTION RESULT LIMIT

Percent: Solids

Petroleum Hydrocarbons

83

<25

,

25

DA'IE

UNITS ANALYZED r: '." METHOD

" wt. 1.2/01./!l4 IiMK C:'av:i.me1:ric

l!l9/kg 12/02/94 SSS 3550/418.1

SAMPLE ID: 08 BH1610-12' Collected: 11/29/9414:00 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALYZED BY MElBOD

Percent Solids

Petroleum Hydrocarbons

83

930

1

25 " wt.. 12/01/94 BMK Gravime'tric

llI9'/kg 1'-/Cl,,-/f:l4 !=:~$ ,"SSO/4l.ll.1.

SAMPLE ID: 11 BB16 18-20' Collected: 11129/94 14:33 category: SOIL

DATE

UNITS ANALYZED BY METHOD

Percent Solids

Petroleum Hydroca:bons

73

<25

1

- 2S

, wt. 12/01/94 E!Mi< Gravime~r1c

mg/kg 12/02/94 SSS 3550/418.1

SAMPLE ID: 12 BH15 4-6' Collectecl: 11/30/94 09:30 category: SOIL

lEST' DETECTION

DESCRIPIlON RESULT LIMIT

DATE /"'j

UNITS ANALYZED BY MEmvI'

Percent Solids

Petroleum Hydrocarbons

84

760

,

25

" ~. '1.2/01./9>4 ~tG:c~a·..itl\et:.ric

mg/ki; 12/02/94 SSS 3SS0/UB.1
05-11-;5 03:53PM

)rder It N4-12-017 r May 11. 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

RESULTS BY SAMPLE Page 3

SAMPLE 10: 19 lIB-IS 18-:ZO' Collected: 11/30/94 10:31 Category: SOIL

TEST DETECTION DATE

DESCRIP'I10N RESULT UMIT UNITS ANALYZED BY METHOD

Pereent Solids

Petroleum Hydrocarbons

80

<25

1

25

t wt. 12/01/94 BMK Gravime~rie

rrg/kg J.'2/0-;'/94 SSS 3550/418.1

SAMPLE 10: 20 IS :zo-:Z:Z' COllected: nr.50/!'4 lU:49 Category: :SOIL

TEST DETECTION

DESCRIP'I10N RESULT LIMIT

DATE

UNITS ANALYZED BY ME"fHOD

Perc::ent:. Solids

Petroleum Hydrocarbons

76

<25

1

2S

t wt. 12/01/94 BMK Gravimetric

lll9'/kg 12/02/5'4 SSS 35501418.1

SAMPLE 10: 24 BH-I10-12' Collected: 11/3019415:14 Category: SOIL

TEST DETECTION DATE

DESCRIP'I10N RESULT LIMIT UNITS ANALYZED BY METHOD

Percent solids

Petroleum Hydrocarbons

84

c;2S

1

2S

t wt. 12/01/94 BMK GraVimetric

mg/kg 12/02/94 SSS 3550/4:1.6.1

..iAMPLE ID: 26 BH-114-16' Collected: 11/30/94 15:30 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALYZED BY METHOD

Percent Solids . Petroleum Hydrocarbons

73

36 2S

" Wl". _ , '-/0" /94 ClMX Gr~vim'!!tric=

mg/kg 12/02/514 SSS 3550/418.J.

SAMPLE 10: 28 BH-118-20' Collected: 11/30/94 15:51 Category: SOIL

lEST DETECTION DATE

DESCRIl'TION RESULT LIMIT UNITS ANAL1-ZED BY MEmOD

Percent Solids .- Petroleum Hydrocarbons:

71

<25

1

2S

'wt. 12/01/94 BMK Gravime~ric::

llIC1/k9 12/02/94 SSS 3550/41S.1
( I TO WAPORA MCCLEA}; CORF. FO 12/023 .

Order # N4·12.Q17

( May 11, 1995 16:46

KEMRON ENVIRONMENTAL. SERVICES

TEST RESULTS BY SAMPLE

Test Code: SPE GC

Sample Description: BUf'"22.24'

Test Description: Special Request

Analyst: MLS Extracted:· 12./01/94

Instrument: HP_lOR Injcacd: 12./07/94

Lab No: OIA

File If: 029R0301

Factor: 33 Units: ug/kg

Collected: 11/13/94 09:00

Category: SOn.

Verified: R.JW

CAS#

50-29-3

NO'IT_~ OEnNITIONS FOR THIS S»%PLE

DE'! LIMIT :: DETECTION LIMIT

Nt) c. NONE DETE:CTED

• • SEMI-QtDmTlTATIVE SCREEN ONl.Y

.. --•...-.... _.

COMPOUND

t,f'-DPT

DETECTION

RESULT LIMIT

NO 3.3

-'.~-'-'-
O'5-.'"l-QS _ w _ u"'3.·;'3'P."., .. --ou .t' 1':. 1Y! •.•V""'?':l\" .:.1\;., U11 Ot;". ':I·~"·' \ t..!..;.r. ! L'B.r. TO WAPORA MCCEAN CORP. ?013/023

(

)rder 1/ N4-12-OI7 r May 11. 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE PageS

DETECTION

RESULT LIMIT

'Jest Code: SPE GC

Sample Description: BHIf24-2S'

Test Description: Special Request

Analyst: MLS Extrac~: 12/01/94

Instrument: HP-:l0R I~jeeted: 12/07/94 ~a:€

Lab No: U1A

File #: 032R0301

Factor: 66 . Units: uglkg

COMPOUND

(;ollected: 111:z3/94 10:15

Category: SOIL

Vcrified: R1W

(

50-29-3

NOTES AND DEFINITIONS FOR THIS S1lMPLE

D.E'I' LIMIT = DE'I'ECTION LIMIT

NO =NONE DETEc::TED 1t .. SEMI-QU1lNTlTAT!V'E SCREEN ON1.Y

4,4 1 -DD'I' ND 6.1i
I f ;,-.1.1-~3, _ =_ .

nll?·.~~~.l"l .1 ",,,,.. ~.~.OM' ~.. '·'~~.',t?v~'\: ..!:,~•• j' ..•.'=.. vs.· '" ..·T.E'r' _ LS.B.. ~I'U' • m'~ORA f,.,\. \ "rr'I:~u ~"'I., ......l\ r~:~ ...U:,!. ;u~1}!07~ • ":' _"

Order # N4.12.Q17

( May 11, 1995 16:46

KEMRON ENVIRONMENTAL. SERVICES

TEST RESUL.TS BY SAMPLE

) Pag~j

Test Code: SPE GC

Sample Description: BHS-16-18,

Test Description: Special Request

Andyn: MLS Exttacr.ed: 12101194

Instrument: lIP_9R Injected: 12/07/94

Lab No: 06A

File #: 033R0301

Factor: 66 Units: u~~

COllected: 11/29194 09:45

Category: SOIL

Verified: RJW

I '

CASII

50-29-3

Nn'lT_l:; ~1m n~mT,[,TONS roR TRI:S SloMPU:

DET LIMIT = DETECTION LIMIT

1\']) = NONE DETECTED

'* = SEMI-QDAN'l'I'I'ATIVE SCREEN ONLY

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

ND 6.6
0;'-1'.!-9· u'1',;'3.". P ;;ov n"~:ir'\\i ,.!~ V,·!ir·: i 'B· .. _...,,; JY. ..' It .....\••\~l\ 1,,/_. l".__ JJ. ~i\. TO WA?ORA MCC:AN CORP. F015/023

)rder # N4-12-Q17

.May 11, 1995 16:46

KEMRON ENVIRONMeNTAL SERVICES . TEST RESUL.TS BY SAMPL.E Page 7

Test Code: SPE GC

Sample Description: BHS-l8-20'

Test Description: Special Request

Analyst: MLS Extracted: 12101/94

Instrument: HP_IOR ~iected: 12/07/94

Lab No: 07A

File #: 034R0301

ractor: 33 Units: u~/k~

Collected: 11/'1.9/9410:00

Category: SOlL

Verified: RJW

(

CASfI

50-29-3

'NnTFh~ ~Nn m:FTNTTTnfIT$ F01' 'mTS $r.~'t..F.

D=:T LIMIT = O=:TECTION LIMIT

ND =. Nom: Ol:I"ECTE:D .... SEMI-QUANTITATIVE S~ ONLY

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

1m 3,3
0- !' r' - """.~. - 3"'1', ,"""_ ,-..,,, P'! .... wi ,L':' ..' ,-' voJ·"'; .. TO VlAPORA MCCL~AN CORP. ?O 16/023 .

Order # N4-12.Q17

Ml1Y 11. 1995 16:46

'KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BV SAMPLE

) Pagt;j/

Test Code: SPE GC

Sample Description: BHti 10-12'

Test Description: Special Request

Analyst: MLS Extracted: 12/01194

Instrument: HP_lOR Injected: 12107/94

Lab No: USA

rile #: 035R0301

Factor: 66 Units: ug/kg

Collected: 11/29/9414:00

Category: SOn.

Verified: RJW

CASII

50-29-3

NnTF.J:: ANn T')~"N1.'l'TONS FOR THIS SAMPLE

D~ LIMIT ;: DETECTION LIMIT

ND = NONE DE:TEc:n:o

• .. SEMI~QUAN'I'ITATIVE:SCRE:EN o:n.y

COMPOUND

4,4 1 -IlOT

DETECI'ION

RESULT LIMIT

NO 6.6
". ~-11'-Q~" • I)v<'~3p\f .., • " .I). •

=~·w ., '.,ji. ..r:H~O\~ ...!I... j\ 1",:: v••, ';~L;EVL/B \.. "'. r. TO VlAPORA MCCLEAN CORP. ?O i'1/023

i

l

"'-- Order # N4-12·017

May 11. 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 9

Test Code: Sl'1: GC

Sample Description: BIDb 18-20'

Test Description: Special Request

Analyst: MLS Extracted: 12/01/94

InstrUment: HP_lOR. Injected: 12/07194

Lab No: 11A

Pile #: 036R0301

Factor: 33 Units: ug/kg

Collected: 11/29/9414:33

Category: SOIL

- Verified: RJW

l

CAS#

50-29-3

NClTF.S z.ND DEFINITIONS FO~ 'r.R!S S»tP1.E

DET LIMIT :: DETEC'I'ION LIMIT

NIl = NONE DETECTED * = SEMI-Qtwf1TI'ATIVE SCREEN ONLY

COMPOUND

4,4' -DDT

DETECTION

RF.S1.TI.,T LIMIT

ND 3.3
I ,

Order /I N4-12-017

M:ty 11. 1995 16:46 .KEMRON ENVIRONMENTAL SERVICESTEST RESULTS BY SAMPLE

\,

!

Paglrrest Coc1e: SPE GC

Sample Des~lion: BH15 4-6'

Test Description: Special Request

Analyst: MLS Extracted: 12/01/94

Instnlment: HP_1OR Injected: 12/07/94

Lab No: 12A

:File II: 037R0301

Factor: 66 Units: uglkg

Collected: 11130/94 09:30

Category: SOIL

Verified: h. 'oN'

CASfI

NOTES AND DEFINITIONS: m~ 'J'ittS SAMPLE

DtT LIMIT =DETECTION LIMIT

N:) = NONE DETEC'l'EO

* • SEMI-QtJ2:WTITATIVE SCREEN ONLY

COMPOUND·

4,4' -DDT

DETECTION

RESULT LIMIT

ND 6.6

)

)
TO WAPORA MCCL~AN CORP. PO! 9/023 .

Order # N4-12-017

M:.y 11, 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

TEST RESUL.TS BY SAMPLE Page 11

Test Code: SPE GC

Sample Description: BB-Is 18-20'

Test Description: Special Request

Analyst: MLS ExtraCted: 12/01194

Instrument: HP_lOR Injected: 12/07/94

Lab No: IliA

File I: 038R0301

Factor: 33 Units: uglkg

Collected: 11/3019410:31

Category: SOIL

Verified: RJW

(

CASf

50-25-3

NOTES AND DEFINITIONS FOR THIS SAMPL'F.

DE'!' LIMIT = DETE:C'I'ION LIMIT

NIh: NONE DE'I'Ec:n:D * .. SEMJ;-QWlNTITATIVE SCREEN ONLY

COMPOUND

4,4 '-DDT

DETECTION

RESULT LIMIT

ND 3.3
,, P020/023 .

Order # N~12·017

M:l)' 11. 1995 16:46

KEMRON ENVIRONMENTAl. SERVICES , TEST RESUL.TS BY SAMPLE

)

Page

Test Code: SPE GC Lab No: 20A Collected: 11/30/94 10:49

Sample Description: lS 2lJ-22t Category: SOIL

Test Description: Special Request ..,,,-

Analyst: MLS ~ae:ted: 12/01/94- . File #: OlSR0301

Instrument: HP_IOR Injected: 12/08/94 Factor: 66 Units: u,glkg Verified: T'~1\,

.DETECTION

CAS' COMPOUND RESULT LIMIT

50-29-3 4.4 I - DDT :NIl 6.6

NOTES AND DEFINITION,!:; 'j:'()~ THIS SAMPU

DET LIMIT = DETECTION LIMIT

.:NIl = NONE DE'l'Ec:TED • = SEM.I-QWtNTlTATIVE SCREEN ONLY
,II .... .. _ , , _ .. r:",'J ...."3~~r ." V.' J.~ 01.1 V,J·.,.; .. •

.Order # N4-12-017

May 11. 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 13

Test Code: SPE GC

Sample Description.: BH-IIo-12'

Test Description.: Special Request

Analyst: MLS Extracted: 12101/94

Instrument: HP_lOR Injected: 12/09194

Lab No: ~A

Fl1e #: 009R0201

Factor: 1650 Units: ug!kg

Collected: 11130/9415:14

Category: SOIL

Verified: RJW

L

(

CAS#

50-29-3

NOTES AND DEFINITIONS FOR THl:S s»!pr~F.

DE! LIMIT = DETECTION LIMIT

Ml • NONE DE'I'Ec:TED

'II • SEMI-QtmNTI"I'ATIVE SCREEN ONLY

COMPOUND

4,4'-DD!'

DETECfION

RESULT LIMIT

380 165
f , I!"- ,. - l'i - Q'i 03 • -"'l.l -"': .;. l~~ "" .. . .. ........... F~OU E~M~OK JE. VALLEY LAB TO WAPOR.~ !~::LEAN CORP. PD22/C23'

Order II N4~12-o17

May 11, 1995 16:46

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY :~.·'\MPLE

)

Page

Test Code: SPE GC

Sample Description: BH-114-16'

Test Description: Special Request

Analyst: MLS Extracted: 12101/94

Instrument: HP_lOR Injected: 12/08/94

Lab No: 26A

File #: 017R0301

FaclOr:.66 Units: uglkg

Collected: 11/30194 15:30

Category: SOn..

Verified: R.JW

1 • CAS# COMPOUND

DETECTION

RESULT LIMIT

1 •

1

50-2S1-3

NOTES 1IND DF.~TNTTTONS FOR TItlE: E:%IICI.2

)JET LIMIT = DE'l'E:CTION LIMIT

Nt).. NOm: DETECTED

• = SEMI-QUANTITA'I'IVE SCREEN ONLY

4,4'-OD'I' 19 6.6
Order # N4-12-017 . May 11. 1995 16:46

KEMRON ENVIRONMENTAL SERVICES . TEST RESUL.TS BY SA.MPlE

Page 15

Test Code: SPE GC

Sample Description: BH-118-Z0'

Test Description: Special Request

Analyst: MLS Extracted: 12/01194

Instrument: HP_l0R Injected: 12/08/94

Lab No: 28A

File #: 018R0301

Factor: 66 Units: uglkg

Collecwi: 11/30/94 15:51

Category: SOIL

Verified: RJW

,

. , CAS# COMPOUND

DETECTION

RF$ULT LIMIT

c

. .

c

NOTES n~J:'TNtTIONS FOR 'nUS S1IMPLE

DET L!M!T .. DETECTION LIMI~

NO ... NONE DETECTED

* = SEMI -~unn'ITA'rlVE Sc::REE:N ONLY

4.,4 1 -00'1' S9 6.6
I f

Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 14

Test Code: SPE_VO Lab No: 07A

Sample Description: NBH-2 '6-1S'

Test Description: Volatile Organics-Spec/MS

Collected: 12/01/94 10)

Category: SOIL

Analyst: MDA

Instrument: HPMS_2 Injected: 12/08/94

File #: 2KE00212

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrachloroethylene ND 5

1,2-D1chloroethane-d4

Toluene-d8

p-Bramofluorobenzene

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT = DETECTION LIHIT

ND = NOT DETECTED AT OR ABOVE THE METHOD

DETECTION LIMIT (MOL)

.•...__...-.... _..

% Recovery (70% - 121%) ll. % Recovery (81% - 117%)

n % Recovery (74% - 121%)

--:--:=- -'_.
I

Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE;

Page 15

( Test Code: SPE_GC

Sample Descrtption: NBH-2 16-18'

Test Description: ~pecial Request

Lab No: 07B Collected: 12/01/94 10:42

Category: SOIL

Analyst: DST

Instrument: HP_SF

Extracted: 12/08/94

Injected: 12/08/94

File #: 014F0101

Factor: 66 ** Units: ug/kg Verified: RJW

CAS#:

50-29-3

COMPOUND

4,4'-00'1'

DETECTION

RESULT LIMIT

NO 6.6

L

c

NO'l'ES AND DEFINITIONS FOR 'l'EIS SAMPLE

DE'1' LIHJ:'1' • DE'l'EC'l'ION LIHI'1'

NO co NONE DE'l'EC'l'ED

• .. SEKt-QUAN'l'I'1'A'1'IVE SCREEN ONLY .... ELEVA'l'ED DE'l'EC'l'ION LIHI'1'S DUE '1'0 SAMPLE MATRIX
Order # .N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 16

Test Code: SPE_VO Lab No: OSA

Sample Descr1ption: NBB-2 20-22'

Test Description: Volatne Organics-Spec/MS

.---\

Collected: 12/01/94 11:. )

Category: SOILAnalyst: TKT

Instrument: HPMS_l Injected: 12/13/94

File #: lKE04495

Factor: 1 Units: ug/kg Ver1fied: R.JW

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene ND 5

1,2-Dichloroethane-d4

Toluene-dB

p-Bramofluorobenzene

NOTES AND DEFINITIONS FOR TRIS SAHPLE

DET LIMIT • DETECTION LDa'1'

ND • NOT DETECTED AT OR ABOVE THE HETROD

DETECTION LIMIT (HDL)

% Recovery (70% - 121%)

li. % Recovery (81% - 117%)

12 % Recovery ·(74% - 121%)
Order #. N4-12-086

December 14. 1994 15:51

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Page 17

(

"- Test Code: SPE GC

Sample Description: NBU:2 20-22'

Test Description: Special Request

Lab No: 08B Collected: 12/01/94 11:10 . Category: SOIL

Analyst: DST

Instrument: HP_8F

Extracted: 12/08/94

Injected: 12/09/94

"File #: 015FOIOI

Factor: 66n Units: ug/kg Vertfied: RJW

,

, .

CAS'

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

ND 6.6

, -

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIHIT • DETECTION LIHIT

ND • NONE DETECTED

* • SEHI-QtJANTITATIVESCREEN ONLY

** • ELEVATED DETECTION LIHITS DOE TO SAHPLE HATRIX
, f

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TEST RESULTS BY SAMPLE

Page 18

Test Code: SPE_VO La:,,: 09A

Sample Description: BH-44-6'

Test Description: Volatile Organics-Spec/MS

\.

Collected: 12/03/94 0, / .

Category: SOIL -

Analyst: TLD

Instrument: HPMS_I Injected: 12/09/94

File #: 1KE04437

Factor: 1 Units: ug/kg Verified: R.rn

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrachloroethylene ND 5

1,2-D1chloroethane-d4

Toluene-d8

p-Bramofluorobenzene

NOTES AND DEFINITIONS POR '!'HIS SAMPLE

DET LIMIT .. DETECTION LIMIT

ND .. NOT DET:::-:TED AT OR ABOVE 'l'HE ME'!'HOD

DETECTION LIlaT (HIlL)

.1J,], % Recovery (70% - 121%)

11Q% Recovery (81% - 117%)

% Recovery (74% - 121%)
I ,

Order # N4-12-086 ' December 14, 1994 15:51

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TEST RESULTS BY SAMPLE

Pagel9

( \, Test Code: SPE_GC

Sample DescI1ption: BB-4 4-6' ,

Test Descrtption: Special Request

Lab No: 09B Collected: 12/03/94 09:00

Category: SOIL

Analyst: DST

Instrument: HP_8F

Extracted: 12/08/94

Injected: 12/09/94

File #: 016F0101

Factor: 66 *if Units: ug/kg Verified: :RJW

1 ,

CAS4/:

50-29-3

COMPOUND

4,4'-DD'l'

DETECTION

RESULT LIMIT

ND 6.6

NOTES AND DEPINITIONS POR 'l'BIS SAMPLE

'DE'l' LIMI'1' • DE'l'EC'I'ION LIMI'l'

ND • NONE DE'l'EC'l'ED

• .. SEHI-Qt1AN'l'I'1'A'1'IVE SCREEN ONLY

••• ELEVA'l'ED DE'l'EC'I'ION LIMI'1'S Ilt1E '1'0 SAMPLE HA'l'RIX
, f

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Page 20

Te$~ Code: SPE_Vo Lab No: lOA

Sample Dessnption: BB-4 6-8'

Test Descnption: Volatlle Organics-Spec/MS

Collected: 12/03/94 o~_-'"

Category: SOIL

Analyst: TLD

Instrument: HPMS_1 Injected: 12/08/94

·Flle #: 1KE04419

Factor: 1 Units: ug/kg Ver1fled: R.JV

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene NO 5

1,2-D1chloroethane-d4

Toluene-dB

p-Bramofluorobenzene

"Recovery (70% - 121%)

"Recovery (Bl% - 117%)

22 "Recovery (74% - 121%)

. ,

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT .. DETECTION LIMIT

NO .. NOT DETECTED AT OR ABOVE 'l'HE HETHOD

DETECTION LIMIT .(MOL)

* .. REANALYSIS CONFIRHS SAMPLE MATRIX IN'l'ERFERENCE \ I

)
I I

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Page 21

Test Code: SPE_GC

Sample Description: BH-4 6-8' . Test DescI1ption: Special Request

Lab No: lOB Collected: 12/03/94 09:15

Category: SOIL

Analyst: DST

Instrument: HP_8F

Extracted: 12/08/94

Injected: 12/09/94

FUe #: 017F0101

Factor: 66** Units: ug/kg Verified: .:RJW

CASt

50-29-3

COMPOUND

4.4'-DDT

DETECTION

RESULT LIMIT

ND 6.6

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIHIT • DETECTION LImT

ND • NONE DETECTED

•• SEMI-QUANTITATIVE SCREEN ONLY

•• c ELEVATED DETECTION LDaTS DOE '1'0 SAKPLE HATRIX
I ,

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Page 22

Test Code: SPE_VO Lab No: 1lA

Sample Description: BH-48·10·

Test Description: Volatne Organi~..-Spec/MS

-"

\

Collected: 12/03/94 09._/I

Category: SOIL

Analyst: TLD

Instrument: HPMS_l Injected: 12/09/94

File #: 1KE04441

Factor: 1 Units: ug/kg Verified: RJ\l:

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene ND S

1,2-Dichloroethane-d4

Toluene-dB

p-Bramofluorobenzene

Nons AND DEFINITIONS FOR '!'HIS SAMPLE

DET LIMIT = DETECTION LIMIT

ND 8: NOT DETECTED AT OR ABOVE '!'HE ME'!'HOD

DETECTION "LIMIT (HDL)

llQ. % Recovery (70% - 121%)

II % Recovery (B1% - 11.7%)

II % Recovery (74% - 1.21.%)
Order # N4-12-086

December 14. 1994 15:51

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Test Code: SPE_GC

Sample Description: BH-4 8-10'

Test Descrtption: Special Request

Lab No: lIB Collected: 12/03/94 09:30

Category: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_lOR Injected: 12/09/94

File #: 021R0101

Factor: 66 ** Units: ug/kg Vertfied: RJW

CASt

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

NO 6.6

(~

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIHIT .. DETECTION LIHIT

NO .. NONE DETECTED

* .. SEMI-QOANTITATIVE SCREEN ONLY

** II: ELEVATED DETECTION LIHITS DtI'E TO SAMPLE HA'rRIX
, f

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 24

Test Code: SPE_va

Sample Description: BH-410-12' ,

Test Description: Volatlle Organies-Spec/MS

Lab No: 12A Collected: 12/03/94 Os.

Category: SOIL

Analyst: TLD

Instrument: HPMS_l Injected: 12/08/94

File #: lKE04421

Factor: 1 Units: ug/kg Verified: RJW

CAS# COMPOUND

DETECTION

RESULT LIMIT

1 •

127-1B-4

;;URROGATES:

Tetrachloroethylene ND 5

1.2-D1chloroethane-d4

Toluene-dB

p-Bramofluorobenzene

% Recovery (70% - 121%) ll. % Recovery (B1% - 117%)

% Recovery (74% - 121%)

I •

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LDIIT '. DETECTION LDaT

ND • NOT DETECTED AT OR ABOVE Tmil METHOD

DETECTION LIMIT (HDI,)

• c REANALYSIS CONFIRMS SAMPLE HA'l'RIX i.:NTERPERENCE
I I

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 25

Test Code: SPE_GC

Sample Description: BB-410-12"

Test DescI1ptlon: Special Request

Lab No: 12B Collected: 12/03/94 09:40

Category: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_lOF Injected: 12/09/94

File #: 01OF0201

Factor: 1650 Units: ug/kg Vertfted: R.J"W

CASt#:

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMlT

770 165

1 '

j

i

L

NOTES AND DEFINITIONS FOR THIS SAMPLE

DE'!' LImT • DE'l'EC'l'ION LIlaT

ND .. NONE DETECTED

* .. SEHI-Qt1AN'l'ITATIVE SCREEN ONLY

....__ _:.

--~--
Order # N4-12-086

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Page 26

Test Code: SPE_va Lab No: 13A

Sample DesCI1ptr:n: BH-4 14-:1.6·

Test DescripL : n: Volatfie Orgamcs-Spec/MS

--'\

Collected: 12/03/94 09: )

Category: SOIL

Analyst: TID

Instrument: HPMS_l Injected: 12/08/94

Flle #: lKE04422

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene ND 5

1.2-Dichloroethane-d4

Toluene-dB

p-Brcmofluorobenzene

% Recovery (70% - 121%)

% Recovery (81% - 117%)

% Recovery (74% - 121%)

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT • DETECTION LIHIT

ND • NOT DETECTED AT OR ABOVE 'l'BE HETHOD

DETECTION LIMIT (HDL)

• = REANALYSIS CONFIRMS SAMPLE !!ATRIX INTERFERENCE

"0

\ ,
, f

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 27

Test Code: SPE_GC

Sample Description: BH-4 14-16'

Test Description: Special Request

Lab No: 13B Collected: 12/03/94 09:55

Categoxy: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_1 OF Injected: 12/09/94

File #: 023F0101

Factor: 66 ** Units: ug/kg Verified: RJW

CAS'

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

ND 6.6

c:

NOTES AND DEFINITIONS FOR THIS SMalLE

DET LIMIT DETECTION LIMIT

NO NONE DETECTED

• = SEMI-QUANTITATIVE SCREEN ONLY •• ELEVATED DETECTION LIMITS DUE '1'0 SAKE'LE !lATRIX
Order # N4-12-086

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Page 28

Test Code: SPE_VO

Sample Dc.;:Cription: BH-4 16-1S·

Test De;::.:ription: Volatlle Orgamcs-Spec/MS

Lab No: 14A Collect:::" 12/03/94 1

categc'; SOIL

Analyst: TLD

Instrument: HPMS_1 Injected: 12/09/94

File #: 1KE04444

Factor: 1 Units: ug/kg Vertfied: .:RJV

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene ND 5

, .

1,2-D1chloroethane-d4

Toluene-dB

. p-Bramofluorobenzene

NO'l'ES AND DEFINITIONS FOR 'I"RIS SAMPLE

DET LIMIT '" DE'l'ECTION LIMIT

ND '" NOT DETEC'l'ED AT OR ABOVE THE HE'I"ROD

DE'l'ECTION LIMIT (MOL)

..'--•..._-..-

% Recovery (70% - 121%)

II % Recovery (81% - 117%)

% Recovery (74% - 121%)

-"':"~._-'-
I I

Order # N4-12-086

December 14. 1994 15:51

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TEST RESUI.TS BY SAMPLE

Page 29

Test Code: SPE_GC . . Sample DescI1ptlon: BH-4 16-~8'

Test Description: Special Request

Lab No: 14B Collected: 12/03/94 10:10 Categ~ SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_10F Injected: 12/09/94

File #: 024F0101

Factor: 66 Units: ug/kg Ver1fled: RJW

(

\.

CASt

50-29-3

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT • DETECTION LnD:T

ND • NONE DETECTED •• SEHI-QOANTITATIVE SCREEN ONLY

COMPOUND

4.4'-DDT

DETECTION

RESULT LIMIT

17 G.G
Order # N4-12-086

December 14. 1994 15:51

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TEST RESULTS BY SAMPLE

Page 30

Test Code: SPE_VO

Sample Description: BH-4 18~20'

Test Description: VolatUe Orgam.:::s-Spee/MS

Lab No: 15A Collected: 12/03/94 11,

Category: SOIL .

Analyst: TLD

Instrument: HPMS_1 Injected: ~2/09/94

File #: nm04445

Factor: 1 Units: ug/kg VeI'1fied: RJ"W

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrachloroethylene ND 5

1,2-Dichloroetbane-d4

Toluene-d8

p-Bramofluorobenzene

NOTES AND DEFINITIONS POR 'l'RIS SAMPLE

DET LImT • DETECTION LImT

ND • NOT DETECTED AT OR ABOVE THE HE'l'BOD

DETECTION LImT (MDL)

% Recovery (70% - 121%)

% Recovery (81% - 117%)

II % Recovery (74% - 121%)
Order # N4-12-086

December 14. 1994 15:51

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Page 31

Test Code: SPE_GC

Sample DescI1ption: BH-4 18-20'

Test DescI1ption: Special Request

Lab No: 15B Collected: 12/03/94 11:00

category: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_I0F Injected: 12/09/94

Flle #: 025FOI01

Factor: 66 ** Units: ug/kg Verified: RJW

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT/

NO 6.6

(

\

'''-.

(

NOTES AND DEFINITIONS FOR TlaS SAMPLE

DET LIMIT • DETECTION LIMIT

NO .. NONE DETECTED * c sma-QUANTITATIVE SCREEN ONLY ** .. ELEVATED DETECTION LIMITS DUE TO SAMPLE nTRIX
, ,

Order .# N4-12-086

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Page 32

Test Code: SPE_VO . Sample DesCI1ptlon: BH-4 20·22'

Test Descr1ptlOn: Volatile Organics·Spec/M~

Lab No: 16A Collected: 12/03/94 1]

Category: SOIL

Analyst: MDA

Instrument: HPMS_2 Injected: 12/09/94

File #: 2KE00218

Factor: 1 Units: ug/kg Verified: R.JW

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrachloroethylene ND S

l,2-Dichloroethane-d4

Toluene-d8

p-Bramof1uorobenzene

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT • DETECTION LIMIT

NO "' NOT DETECTED A.T OR ABOVE THE HE'l'HOD

DETECTION LIMIT (MOL)

% Recovery (70% - 121%)

II % Recovery (81% - 117%)

l.i % Recovery (74% - 121%)

\,

;
,,

Order # N4-12-086

December 14, 1994 15:51

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TEST RESULTS BY SAMPLE

Page 33

( Test Code: SPE_GC

Sample Description: BB-4 20-22' . Test Description: Special Request

Lab No: 16B Collected: 12/03/94 11:30

Category: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_10F Injected: 12/09/94

File #: 026F0101

Factor: 66** Units: ug/kg Ver:lfied: RJW

CAS## COMPOUND

DETECTION

RESuLT LIMIT

, .

50-29-3 4,4'-DD'1' NO 6.6

!

,

NOTES AND DEFINITIONS FOR '!'HIS SAHPLE

DE'1' LIMJ:'1' • DETECTION LIMJ:'1'

NO 0: NONE DETECTED

* 0: SEMI-Qt1AN'1'I'1'A'1'IVE SCREEN ONLY

** 0: ELEVATED DETECTION LIMI'1'S DUE '1'0 SAMPLE MATRIX
I , Order # N4-12-086

December 14. 1994 15:51

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.Page 34

Test Code: SPE_VO Lab No: 17A S(',:/~ple Description: BH-14 8-10'

Test Description: Volatile' Organics-Spec/MS

.",

Collected: 12/06/94 1 "

Category: SOIL

Analyst: MDA

Instrument: HPMS_2 Injected: ~2/09/94

File #: 2KE00219

Factor: 1 Units: ug/kg Ver1fied: RJ\'\

CAS* COMPOUND

DETECTION

RESULT LIMlT··..--

, ,

J.27-18-4

SURROGATES:

Tetrachloroethylene NO 5

1,2-D1chloroethane-d4

Toluene-d8

p-Bramo!luorobenzene

% Recovery (70% - J.21%) .12. % Recovery (81% - 117%)

% Recovery (74%- 121%)

I •

NO'l'ES AND DEFImTIONS FOR 'l'RIS SAMPLE

DET LIMIT .. DE'I'EC'l'ION LIHIT

NO = NOT DETEC'I'ED AT OR ABOVE 'l'RE HE'l'BOD

DE'l'EC'l'ION LD!IT (HIlL)

• • REANALYSIS CONFIRMS SAMPLE :MATRIX INTERFERENCE
,,

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 35

Test Code: SPE_GC

Sample Description: BH-14 8-10'

Test Description: Special Request

Lab No: 17B Collected: 12/06/94 10:30

Category: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_lOF Injected: 12/09/94

File #: 027F0101

Factor: 66 ** Units: ug/kg Verified: RJW

CASt

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

NO 6.6

1 '

l

NOTES AND DEFINITIONS POR THIS SAMPLE

DET LIMIT .. DETECTION LIMIT

NO • NONE DETECTED

* • SEHI-QtJANTI'l'ATrvE SCREEN ONLY *. • ELEVATED DETEC'l'ION LIMITS DOE '1'0 SAMPLE KA'l'RDt
I I

Order # N4-12-086

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Page 36

Test Code: SPE_va Lab No: 18A

Sample DesCription: BH-1410-12'

Test DeScription: Volatile Orgamcs-Spec/MS

Collected: 12/06/94 10 ~") category: SOIL

Analyst: TI..D

Instrument: FINN2

File #: 2KE40S10

Injected: 12/13/94 Factor: 1 Units: ug/kg Ver1fied: :RJW

CAS#

127-18-4

SURROGATES:

COMPOUND

Tetrachloroethylene

DETECTION

RESULT LIMIT

ND 5

1,2-D1chloroethane-d4

Toluene-dB

p-Bromofluorobenzene

Do % Recovery (70% - 121%) .~ % Recovery (Bl% - 117%)

% Recovery (74% - 121%)

1 1

NOTES AND DEFINITIONS FOR '!'HIS SAMPLE

DET LDaT • DETEC'I'ION LDaT

ND • NOT DETECTED AT OR ABOVE '.t'HE HE'1'BOD

DETEC'I'IO~ .LD!IT (HDL) • • REANALYSIS CONFIRMS SAMPLE MATRIX IN'l'ERFERENc::E

)
Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 37

Test Code: SPE_GC

Sample Description: BH-14 10-12'

Test Description: Special Request

Lab No: 18B Collected: 12/06/94 10:40

Category: SOn.

Analyst: MLS Extracted: 12/08/94

Instrument: HP_I0R Injected: 12/09/94

File #: 028R0101

Factor: 66** Units: ug/kg Ver1fled: RJW

I

CASt

50-29-3

COMPOUND

4,4'-DD'1'

DETECTION

RESULT LIMlT

NO 6,6

(

NO'l'ES AND DEFIm'1'IONS FOR 'l'HIS SAMPLE

DE'1' LIHI'1' .. DE'l'EC'l'ION LIla'1'

NO .. NONE DE'l'EC'I'ED

* .. SEHI-QOAN'l'I'1'A'1'IVE SCREEN ONLY -..,~-- -

** .. ELEVA'l'ED DE'l'EC'l'ION LIMITS DOE '1'0 SAMPLE KA'l'RDt
, f

Order # N4-12-086

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Page 38

Test Code: SPE_VO Lab No: 19A

Sample Descrtptlon: BH-1412-14' ,

Test Description: Volatfie Organics-Spec/MS

Collected: 12/06/94 10: -,--)

Category: SOIL '

Analyst: MDA

Instrument: HPMS_2 Injected: 12/09/94

File #: 2KE00221

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethyleno ND 5

1,2-D1chloroethane-d4

Toluene-dB p-Bramo!luoro~enzene

.21. "Recovery (70% - 121")

"Recovery (Bl" - 117")

"Recovery (74% - 121")

NOTES AND DEPINI:TIONS POR 'l'EIS SAHPLE

DET LIMIT • DETECTION LIHIT

ND • NOT DETECTED AT OR ABOVE THE HE'l'EOD

DETECTION LIMIT (HDL) . ' * • REANALYSIS CONFIRMS SAMPLE nTRIX :i:(,:'ERPERENCE

'.

-1
,,

Order #N4-12-086

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TEST RESULTS BY SAMPLE

Page 39

Collected: 12/06/9410:05

Category: SOIL

-

l, Test Code: SPE_GC

Sample Description: BH-1412-14'

Test Description: Special Request

AnaIyst: MLS Extracted: 12/08/94

Instrument: HP_10F Injected: 12/09/94

Lab No: 19B

File #: 011F0201

Factor: 66** Units: ug/kg Verified: RJW

CAS'

50-29-3

COMPOUND

4,4'-DD'l'

DETECTION

RESULT LIMIT

ND 6.6

. ,

(

NOTES AND DEFINI'1'IONS FOR THIS SAMPLE

DE'1' Lna'1' • DE'1'EC'1'ION LIHI'1'

ND • NONE DE'1'EC'l'ED

• • SEMI-QUANTITATIVE SCREEN ONLY ••• ELEVATED DE'1'EC'1'ION LDa'1'S DOE '1'0 SAHPLE !lATRIX
I ,

Order # N4-12-086

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Test Code: SPE VO Lab No: 20A

Sample Descrtption: BH-i4 14-16'

Test Descrtption: Volatne Organics-Spec/loiS

Collected: 12/06/94 1l~) Category: SOIL

Analyst: MDA

Instrument: HPMS_2 Injected: ~2/09/94

File #: 2KE00222

Factor: 1 Units: ug/kg Verified: :RJW

CASt COMPOUND

DETECTION

RESULT LIMIT

1 •

127-18-4

SURROGATES:

Tetrachloroethylene ND S

1 •

!

I

1,2-D1chloroethane-d4

Toluene-dB

p-Bramofluorobenzene

NO'l'ES AND DEFDnTIONS FOR '!'HIS SAMPLE

DET LIMIT • DE'l'EC'l'ION LIMIT

NO • NOT DE'l'EC'l'ED AT OR ABOVE '!'HE KE'!'HOD

DE'l'EC'I'ION LIMIT (MOL)

.. --....•....•.

~~ % Recovery (70% - 121%)

% Recovery (81% - 117%)

n % Recovery (74% - 121%)

--:-=-----

.'
I I

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 41

Test Code: SPE_GC

Sample Descrtption: BH-14 14-16'

Test Descnption: Special Request

LabNo: 20B Collected: 12/06/94 11:05

Category: SOIL

Analyst: MLS Extracted: 12/08/94

Instrument: HP_10F Injected: 12/09/94

File #: 014F0201

Factor: 66** Units: ug/kg VeI1fled: RJW

CAS'

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

NO 6.6

(

NOTES AND DEFINITIONS FOR THIS SAHP,LE

DET LIm'l' • DETECTION LDC:T

NO .. NONE DETECTED

•• SEHI-Ct1AN'l'ITATIVE SCREEN ONLY .... ELEVATED DETECTION LDC:TS DOE '1'0 SAHPLE MATRIX
Order # N4-12-086 .December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 42

Test Code: SPE_va Lab No: 21A

Sauple Description: BH-14 1,6-18'

Test Description: VoIatne Organics-Spec/AIS

....,

Collected: 12/06/9411.)

Category: SOIL

.Analyst: MDA

Instrument: HPMS_2 Injected: 12/09/94

FJle #: 2KE00223

Factor: 1 Units: ug/kg Ver1fled: RJW

CAS* COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

~etrach1oroethylene 1m 5

1,2-D1chloroe thane-d4

~o1uene-d8

p-Bromof1uorobenzene

n % Recovery (70% - 121%)

.u. % Recovery (81% - 117%)

% Recovery (74% - 121%)

NOTES AND DEFINI~IONS FOR THIS SAHPLE

DE~ Lna:~ • DETECTION Lna:~

1m • N~ DETECTED A~ OR ABOVE THE HE'l'BOD

DETECTION Lna:~ .(MDL)

• .. REANALYSIS CONFIr,:.:',~s SAHPLE nnn INTERFERENCE
, I

Order # N4-12-086

December 14. 1994 15:51

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TEST RESULTS BY SAMPLE

Page 43

Test Code: SPE_GC

Sample Descnption: BH-14 16-18'

Test Description: Special Request

Lab No: 21B Collected: 12/06/94 11:20

Category: SOIL

Analyst: EeL

Instrument: HP_IVF

Extracted: 12/08/94 ··'Flle #: 019FOIOl

Injected: 12/09/94 Factor: 66 ** Units: ug/kg VeI1fled: RJW

CAS'

50-29-3

COMPOUND

4,4'-DD'1'

DETECTION

RESULT LIMIT

NO 6.6

(

(

NO'l'ES AND DEPINI'1'IONS POR 'mIS SAHPLE

DE'1' LIHI'l' • DE'l'EC'l'ION LIHI'1'

NO • NONE DE'l'EC'l'ED

•• sma-Ql1AN'l'I'1'A'1'IVE SCREEN ONLY ••• ELEVA'l'ED DE'l'EC'l'ION LIKI'l'S DOE '1'0 SAHPLE HA'l'lUX
Order # N4-12-086

December 14. 1994 15:51

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TEST RESULTS BY SAMPLE

Page 44

Test Code: SPE_va Lab No: 22A

Sample Description: BH-14 1$-20'

Test Description: VolatDe Organics-Spec/US

Collected: 12/06/94 1: /j Category: SOIL /

Analyst: MDA

Instrument: HPMS_2 Injected: 12/09/94

File #: 2KE00224

Factor: 1 Units: ug/kg Verified: Riw

CAS# COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene NO 5

, ,

1,2-Dichloroethane-d4

Toluene-dB

p-Bramofluorobenzene

NOTES AND DEFINITIONS FOR TinS SAMPLE

DET LDaT • DETECTION LDaT

NO • NOT DETECTED AT OR ABOVE THE HEmOD

DETECTION LIMIT (MOL)

% Recovery (70% - 121%)

.u. % Recovery (81% - 117%)

% Recovery (74% - 121%)
, f

Order # N4-12-086

December 14. 1994 15:51

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TEST RESULTS BY SAMPLE

Page 45

( Test Code: SPE_GC

Sample Description: BH-14 18-20'

Test Description: Special Request

Lab No: 22B Collected: 12/06/94 11:35

Category: SOIL

Analyst: ECL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: 12/10/94

File #: 020FO101

Factor: 66 ** Units: ug/kg Verified: RJW

CAS'

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

1m 6.6

(

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT .. DETECTION LIMIT

ND .. NONE DETECTED

• .. SEHI-QtJANTITATIVE SCREEN ONLY •• .. ELEVATED DETECTION LIMITS DOE TO SAMPLE MATRIX

_..-
, f

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 46

Test Code: SPE_VO Lab No: 23A

Sample Description: BH-14 20-22'

Test Description: Volatile Orgamcs-Spec/MS

-~

Collected: 12/06/94 11 _)

Category: SOIL

Analyst: MDA

Instrument: HPMS_2 Injected: 12/09/94

File #: 2KE00225

Factor: 1 Units: ug/kg Vertfied: RJW

CAS" COMPOUND

DETECTION

RESULT LIMlT·--

, ,

127-18-4

SURROGATES:

Tetrachloroethylene ND S

1 •

I

I

l,2-D1chloroethane-d4

Toluene-d8

p-Brcmofluorobenzene

NOTES AND DEPINI'l'IONS POR 'l'RIS SAMPLE

DE'l' LIHI'l' .. DETEC'I'ION LIHI'l'

NO .. NO'l' DE'l'ECTED A'l' OR ABOVE ':'HE HE'l'BOD

DETEC'I'ION LIHI'l' (HIlL)

% Recovery (70% - 121%)

.21. % Recovery (81% - 117%)

JQ % Recovery (74% - 121%)
I I

Order # N4-12-086

December 14, 199417:15

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 47

I

I

" Test Code: SPE GC

Sample DescI1ptlon: BH-14 20-22' , Test Description: Special Request

Lab No: 23B Collected: 12/06/94 11:55

Category: SOIL

Analyst: ECL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: 12/10/94

File #: 021F0101

Factor: 33 Units: ug/kg VeI1fl.ed: RJW

(

CAS#

50-29-3

NO'l'ES AND DEFINI'1'IONS FOR 'l'HIS SAMPLE

DE'l' LIHI'l' .. DETECTION LIHI'l' ' ND .. NONE DE'l'EC'l'ED • • SEMI-QUANTI'1'A'1'IVE SCREEN ONLY

COMPOUND

4,4'-DD'1'

DETECTION

RESULT LIMIT

1m 3.3
f f

Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 48

Test Code: SPE va Lab No: 24A

Sample Descnption: BH-1422-24'

Test Description: Volatne Organ.:~';.'-Spec/MS

Collected: 12/06/94 11-)

Category: SOIL /

Analyst: TKT

InstnlInent: HPMS_l Injected: 12/13/94

Flle #: lKE04497

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrachloroethylene NO 5

, ,

1,2-D1chloroethane-d4

Toluene-d8

p-Bramofluorobenzene

NOTES·AND DEFINITIONS FOR'l'RZS SAHPLE

DET LIMIT or DETECTION LIMIT

NO • NOT DETECTED AT OR ABOVE '!'HE ME'l'HOD

DETECTION LIMIT .(HIlL)

U % Recovery (70% - 121%)

n % Recovery (81% - 117%)

n % Recovery (74% - 121%)
Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 49

Test Code: SPE_GC

Sample Description: BH-1422-24'

Test Description: Special'Request

LabNo: 24B Collected: 12/06/9411:37

Category: SOIL

Analyst: ECL

Instrument: HP_lVF

Extracted: 12/08/94

Injected: ~2/10/94

File #: 022Foltn

Factor: 66 ** Units: ug/kg Verified: R.JW

CAS'

50-29-3

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

Nd 6.6

(

. .

(

NOTES AND DEFINITIONS FOR TRIS SAMPLE

DET LIMIT • DIi!'l'EC'l'ION LIMIT

ND • NONE DETECTED * • SEHI-Qt1ANTITATIVE SCREEN ONLY ** • ELEVATED DETECTION LIMITS DOE TO SAMPLE HATRIX

,.. ----.......--.... 0.

-'::-~-'-
I f

Order # N4-12-086

December 14. 1994 15:52

KEMRON ENVIRONMENTAL SERVICES

TEST METHODOLOGIES

Page 50

1 ,

Volatile analytes analyzed by purge and trap CCI.YS.

SW-846 METHOD 8240 (MODIFIED FOR MEGABORE COLUMN)

--~

)
I ,. Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 13

Test Code: SPE_GC

Sample Description: NBH-3/14-1S'

Test Description: Special Request

Lab No: 06B Collected: 12/01/94 16:16

Category: SOIL

Analyst: ECL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: 12/10/94

File #: 039F0501

Factor: 66 Units: ug/kg Verified: RJW

1 1

c

CASt

50-29-3

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LDa'l' • DETECTION LD!I'l'

ND • NONE DETECTED

• • SEKI-CtJAN'l'I'l'ATIVE SCREJ:N ONLY

COMPOUND

4,4'-DD'!'

DETECTION

RESULT LIMIT

60 6.6
I ,

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

.

.

Page 14

- Test Code: SPE_VO

Sample Description: NBH-S/1S-1S'

Test Description: Volatile Organics-Spec/MS

Lab No: 07A Collected: 12/01/94 l(

category: SOIL

\

Analyst: MDA

Instrument: HPMS_2 Injected: 12/09/94

File #: 2KE00229

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene 1m 5

1,2-D1chloroethane-d4

Toluene-dB

p-Bramofluorobenzene

NOTES AND DEFINITIONS paR DIS SAHPLE

DET LIHIT • DETECTION LIHIT

ND • NOT DETECTED AT OR ABOVE '!'BE HETBOD

DETECTION. LIMIT (HDL)

... _- -

% Recovery (70% - 121%) n % Recovery (81% - 117%)

% Recovery (74% - 121%)

-'-;"~-'-'
I I

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 15

Test Code: SPE_GC

Sample DescI1ption: NBH-3/16-1S'

Test Description: Special Request

Lab No: 07B Collected: 12/01/94 16:23

Category: SOIL

Analyst: ECL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: 12/10/94

File #: 040F0501

Factor: 33 Units: ug/kg VeI1fled: RJW

L

I 1

l

CASI

50-29-3

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT • DETECTION LIMIT

1m • NONE DETECTED • •. SEHI-Qt7ANTITATIVE SCREEN ONLY

COMPOUND

(,4 ' -DDT

DETECTION

RESULT LIMIT

1m 3.3
, I

Order # N4-12-123

December 14. 1994 17:04 . KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 16

Test Code: SPE_VO Lab No: OBA

Sample Description: NBB-3/20-22·,

Test Description: VolatDe'Organics-Spec/PaIS

Collected: 12/01/94 It ) Category: SOIL -.-/

Analyst: ncr

Instrument: HPMS_l Injected: 12/12/94

File #: 1KE04490

Factor: 5 * Units: ug/kg Verified: RJW

CASt COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene ND 2S

1,2-D1ch1oroethaDe-d4

Toluene-dB

p-Bramofluorobenzene

•

.1.l2.4 % Recovery (70% - 121%)

II % Recovery (81% - 1.17%)

157 •• % Recovery (74% - 1.21%)

NOTES AND DEFINITIONS FOR 'l'RIS SAMPLE

DET LIHIT .. DETECTION LD!IT

ND .. NOT DETECTED AT OR ABOVE 'l'RE HE'l'BOD

DETECTION LIHIT (MOL) •.

• .. ELEVATED DETECTION LDlIT DUE TO SAMPLE KATRIX .... DILU"l'ION ANALYSIS CONFIllHS SAHPLE KATRDt IN'l'ERFERENCE
I I

Order # N4-12-123

December 15. 1994 10:22

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 17

Test Code: SPE_GC

Sample Description: NBH-3/20-22'

Test Description: Special Request

Lab No: OSB Collected: 12/01/94 16:37

Catelmry: SOIL

Analyst: ECL

Instrument: HP_IVF

~cted: 12/08/94

Injected: 12/10/94

.File #: 041F0501

Factor: 33 Units: ug/kg Verified: RJW

CAS'

50-29-3

NOTES AND DEFINITIONS FOR THIS SAHPLE

DET LIHIT .DETEC'l'ION LIHIT

ND .. NONE DETECTED ... SEHI-QUANTITAT:IVE SCREEN ONLY

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

ND 3.3
,,

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST METHODOLOGIES Page 18

! ,

Volatile analytes analyzed by purge ~~. ~rap GC/MS.

SW-846 HETHOD 8240 (MODIFIED POR HEGABORE COLUMN)

.'
, f

Order # N4-12·086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 3

Test Code: SPE_GC

. Sample Descrtptlon: NBH-2 4-6'

Test Description: Special Request

Lab No: 01B Collected: 12/01/94 09:51

Category; SOIL

Analyst: DST

Instrument: HP_8F

CAS'

Extracted: 12/08/94

Injected: 12/08/94

File #: 008F0101 .

Factor. 66 Units: ug/kg

DETECTION

COMPOUND RESULT LIMIT--

Vel1fied: RJW

1 ,

L

. .

50-29-3

NOTES AND DEFINJ:TIONS FOR THJ:SSAHPLE

DE'!' LIm'!' • DE'l'EC'I'ION LIMIT .

ND • NONE DETECTED

• • SEHI-Ct1AN'1'I'!'A'!'IVE SCREEN ONLY

4,4'-DD'l' :1.2
I I

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 4

Test Code: 5PE_VO

Sample Description: NBH-2 8-10·

Test Description: Volatile Organics--Spec/MS

LabNo: 02A ~,

Collected: 12/01/94 Ie Cate~ry: 50!!-

Analyst: MDA

Instrument: HPMS_2 Injected: ~2/08/94

File #: 2KE00205

Factor: 1 Units: ug/kg Verilled: RJW

CASt COMPOUND

DETECTION

RESULT LIMIT

127-18-4

f::'RROGATES:

Tetrachloroethylene ND 5

1 ,

1,2-D1ch1oroetbane-d4

Toluene-d8

p-Bramo~luorobenzene

NO'l'ESAND DEFmITIONS FOR orm:S SAHPLE

DET LDaT • DE'l'EC'l'ION Ln!IT

NO • NOT DE'l'EC'l'ED AT OR 1'.7:!OVE '!'BE HE'l'ROD

DE'l'EC'l'ION LImT (HDL)

% Recover,y (70% - 121%)

II % Recover,y (81% - 117%)

% Recover,y (74% - 121%)
Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 5

Test Code: SPE_GC

Sample Description: NBH-2 8-10·

Test DesCI1ption: Special Request

Lab No: 02B' Collected: 12/01/94 10:06

Category: SOIL

Analyst: DST

Instrument: HP_8F

Extracted: 12/08/94

Injected: 12/08/94

File #: 009F0101

Factor: 66 Units: ug/kg Verified: RJW

CASI

50-29-3

NOTES AND DEPImTIONS POR 'l'Hl:S SAHPLE

DET LIHIT • DETECTION LIHIT

NO • NONE DETECTED

• '" sma-QUANTITATIVE SCREEN ONLY

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

11 6.6
Order # N4-12-086

December 14. 1994 E-:~51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 6

Test Code: SPE_va Lab No: 03A

Sample Descr1ptlon: NBH-2 6-8·

Test Descr1ptlon: VoIatne Organics-Spec/MS

Collected: 12/01/94 OS --)

Category: SOIL

Analyst:TIcr

Instrument: HPMS_l Injected: ~2/12/94

FJle #: lKE04485

Factor: 1 Units: ug/kg VeI'1fied: RJW

CASt COMPOUND

DETECTION

RESULT LIMlT--

127-18-4

SURROGATES:

~etrachloroetbylene NO 5

1,2-D1chloroethane-d4 ~oluene-d8

p-Bramofluorobenzene

NOTES AND DEFnr.r~IONS FOR 'l'R!:S SAHPLE

DE~ LIm~ • DETECTION LIm?

NO • N~ DETECTED A~ OR ABOVE 'l'HE HETHOD

DETECTION LntI~ (HDL)

- I

% Recovery (70% - 121%)

% Recovery (81% - 117%)

% Recovery (74% - 121%)

.'
I f

Order # N4-12-086

December 14, 1994 15:51

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TEST RESULTS BY SAMPLE

Page 7

Test Code: SPE_GC

Sample Desertptlon: NBB-2 6-8'

Test Desertptlon: Special Request

Lab No: 03B Collected: 12/01/94 09:58

category: SOlL

Analyst: DST

Instrument: HP_8F

Extracted: 12/08/94

Injected: 12/08/94

File #: 010FOI01

Factor: 66** Units: ug/kg Verified: RJW

CAS.

50-29-3

COMPOUND

(,('-DD'1'

DETECTION

RESULT LIMIT

1m 6.6

L

1 •

(

NO'l'ES AND DEFINI'1'IONS FOR 'l'HIS SAHPLE

DE'1' LIKI'1' • DE'l'EC'l'ION LIKI'1'

ND • NONE DE'l'EC'l'ED

• • SEKI-Qt1AN'1'I'1'A'1'IVE SCREEN ONLY ••• ELEVA'l'ED DE'l'EC'l'ION LDa'1'S DOE '1'0 SAKPLE IN'1'ERPERENCE
f I

Order # N4-12-086

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TEST RESULTS BY SAMPLE

Page 8

Test Code: SPE_VO Lab No: 04A

Sample Description: NBH·2 10·12'

Test Description: Volatne Organics-Spec/PaIS

Collected: 12/01/94 lC,

Category: SOIL

Analyst: ncr

Instrument: HPMS_l Injected: 12/12/94

File #: lKE04491

Factor: 1 Units: ug/kg Ver1fied: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrachloroethylene NO 5

..

1,2-D1chloroethane-d4

'l'oluene-d8

p-Bramofluorobenzene

_....

NOTES AND DEPINITIONS POR THIS SAMPLE

DET LIMIT .. DETECTION LImT

ND • NOT DETECTED AT DR ABOVE THE !!ETHOD

DETECTION LIMIT (HDL)

J.2Z % Recovery (70% - 121%) li % Recovery (81% - 117%)

% Recovery (74% - 121%)
f I

Order # N4-12-086

December 14, 1994 15:51

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TEST RESULTS BY SAMPLE

Page 9

Test Code: SPE_GC

Sample Description: NBH-2 10-12·,

Test DesCIiption: Special Request

Lab No: 04B Collected: 12/01/94 10:14

Category: SOIL

Analyst: DST '

Instrument: HP_8F

Extracted: 12/08/94

Injected: ~2/08/94

File #: ,01lF0101

Factor: 66** Units: ug/kg Ver1fled: RJW

I .

CAS#

50-29-3

COMPOUND

4.4·-DD'l'

DETECTION

RESULT LIMIT

ND 6.6

1 1

NOTES AND DEFINITIONS FOR 'l'RIS SAMPLE

DET LDaT • DETEC'1'ION LIHIT

ND • NONE DE'l'EC'l'ED • • sma-QUANTI'1'ATIVE SCREEN ONLY -.,.----;~ 0_--

•• • ELEVATED DETEC'l'ION LIHITS DUE '1'0 SAKPLE HA'l'RIX

0' __•
Order # N4-12-086

December 14. 1994 15:51

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TEST RESULTS BY SAMPLE

Page 10

Test Code: SPE_VO Lab No: OSA

Sample Descrtption: NBH·2 12-14'

Test Description: Volatile Organics-Spec/loIS

Collected: 12/01/941(.

Category: SOIL

Analyst: ncr

Instrument: HPMS_l Injected: ~2/12/94

File #: lKE04492

Factor: 1 Units: ug/kg Ver1fled: RJW

CAS4#: COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGATES:

Tetrach1oroethylene NO S

l,2-D1chloroethane-d4

Toluene-d8

p-Bramofluorobenzene

% Recovery (70% - 121%)

J2 % Recovery (81% - 117%)

% Recovery (74% - 121%)

NOTES AND DEFINITIONS FOR 'l'RIS SAMPLE

DET LIMIT • DETECTION LIMIT

NO • NOT DETECTED AT OR ABOVE 'l'HE m-:lOD

DETECTION LIMIT .(HIlL)

• • REANALYSIS CONFIRKS SAHPLE HAn:.:: IN'l'ERFERENCE

,

) --,~
I f

Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 11

Test Code: SPE_GC

Sample Description: NBB-2 1~-14'

. Test Description: Special Request

Lab No: 05B Collected: 12/01/94 10:23

Category: SOIL

Analyst: DST

Instrument: HP_8F

Extracted: 12/08/94

Injected: ~2/08/94

File #: 012F0101

Factor: 66 Units: ug/kg VeIified: RJW

I W

(

'----

CAS'

50-29-3

NOTES AND DEFINITIONS FORTRIS SAMPLE

DET LDaT • DETECTJ:ON LJ:KIT

ND '" NONE DETECTED ••.SEHI-QUANTITATIVE SCREEN ONLY

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

28 6.6
, f

KEMRON Environmental Services

109 Starlite Park

Marietta, Ohio 45750

Phone: (614) 373-4071

KemROn

KEMRON Environmental SeIVices

792S Jones Branch Drive

McLean, VA 22102

Attn: Dana Jackson

Sample Sample N~ber Descnption

01 NBH-24-S'

03 NBH-2 6-8'

05 NBH-2 12-14'

07 NBH-2 IS-18'

09 BH-44-6'

11 BH-48-10'

13 BH-4 14-lS'

15 BH-4 18-20'

17 BH-148-10'

19 BH-14 12-14'

21 BH-14 16-18'

23 BH-1420-22'

Order #: N4-12-0SS

Date: December 14, 1994 15:51

Work ID: DPSC-Ph11adelphia

Date Received: 12/07/94

Date Completed: 12/14/94

Client Code: KEMRON_MC

SAMPLE mENTIFICATION

Sample Sample

Number Descnptlon

02 NBH-2 8-10'

04 NBH-2 10-12'

OS NBH-2 14-1S'

08 NBH-2 20-22'

10 BH-4 S-8'

12 BH-4 10-12'

14 BH-4 IS-IS'

IS BH-4 20-22'

18 BH-14 10-12'

20 BH-14 14-16'

22 BH-14 18~20'

24 BH-1422-24'

AU results on solids/sludges are reported '~ RECEIVED" unless othenvise

spedjied. nus report shaH not be reproduced. except in

:.jull. without the written approval ofKEMRON.

LesUe BuciDa
I f

Order # N4-12-086

December 14. 1994 15:51

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 2

Test Code: SPE_VO Lab No: OlA

Sample DescI1ption: NBH·2 4:-6"

Test Description: Volatne Orgamcs-Spec/MS

Collected: 12/01/94 09:51

Category: SOIL

Analyst: MDA

Instrument: HPMS_2 Injected: ~2/08/94

File #: 2KE00204

Factor: 1 Units: ug/kg Verified: RJW

CAS* COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

~etrachloroethylene ND 5

1 '

1,2-D1chloroethane-d4 ~oluene-dB

p-Bramofluorobenzene

NOTES AND DEFINI~IONS POR 'l'KIS SAHPLE

m:~ LIHI~ • m:~EC~ION LIHI~

NO .. NOT DE'l'EC~ED AT OR ABOVE THE HE'l'HOD

DETECTION Lna~ (KDL)

U % Recovery (70% - 121%)

.1ll % Recovery (81% - 117%)

lQ1 % Recovery (74% - 121%)
f I

KEMRON Environmental Services

109 Star/ite Park .

M~rietta, Ohio 45750

Phone: (614) 373-4071

KelDROn

ENVIRONMENTAL SERVICES

KEMRON EnviromnemaI Services

7926 Jones,Branch Drive

McLean, VA 22102

Atm: Dana Jackson

Order #: N4-12-149

Date: December 16, 1994 15:55

Work ID: 8057.Q04/DPSC- Philadelphia Date Received: 12/09/94 ' Date Completed: 12/16/94

Client Code: KEMRON_MC

SAMPLE IDENTIFlCATION

Sampie Sample Sample Sample

Number Description Number Description

01 BB-178-10' 02 BH-17 10-12'

03 BE-17 12-14' 04 BH-17 14-16'

05 BH-17 16-18' 06 BH-17 18-20'

CJ7 BH-17W2 08 BH-188-10' -- ",

09 BH-18 12-14' 10 BH-18 14-16'

11 BH-18 16-18' 12 BH-18 18-20'

13 BH-14 W 14 BH-17W3

! , 15 BH-18W4

AIlresults on ~olids/s1uli.ges are reponed "AS RECEIVED "1D11es.! otherwise

speci.f!e!!. ThiS repon shDl1 not be reproduced, except III " ,'

Jull, wilhDut the writtm approval ofKEMRON.
, f

Order # N4-12-149

December 16, 1994 15:56

KEltfRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 3

1 ,

Test Code: SPE GC Lab No: 13A Collected: 12/07/94 10:01

Sample Description: BB-I4 W CatcgOIY: WATER

Test Description: Special Request

Analyst: ECL Extracted: 12109/94 FJle #: 019F0401

Jnsuumcnt: HP_IVF Injected: 12/16/94 Factor: 2 Units: uglL Verified: RJW

DETECI'ION

CAS# COMPOUND RESULT LIMIT

50-29-3 4,4 'DDT 0.55 0.2

NOTES AND DEFmrrIONS FOR THIS SAMPLE

DE'!' LIMIT • DETECTION LIMIT

ND • NONE DETEC'1'ED * • SEMI-QtmNTITATIVE SCREEN ONLY
I J

Order # N4-12-149

December 16. 1994 15:56

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 4

)

Test Code: SPE VO Lab No: 14A

Sample Description: BB-I'-W3

Test Description: Volatile Orgauics-SpecJMS

Collected: W07/9413:30

Category: WATER

Analyst: ncr

IDstrumcDt: HPMS_l Injecrcd: 12/11/94

FJle #: lKE04470

Factor: 1 Units: uglL Verified: RJW

CASN

127-1S-4

SURROGATES:

COMPOUND

Tetrachloroethylene

DETECTION

RESULT LIM.IT

NO 5

I '

1,2-Dichloroethane-d4

Toluene-dS

p-Bromoflucrobenzene

ROTES AND DEFINITIONS FOR THIS SAMPLE

DE'!' LIMIT • DETEC'I'ION LIMIT

1m • NOT DETEC'1'ED AT OR ABOVE'l'HE MEmOD

DETEC'rION LIMIT (MOL)

H t Recovery (76t - 11n)

H t Recovery (sst - 110\,)

n t Recovery (B6t - 115\')
I

(

'--

Order # N4-12-149

December 16, 1994 15:56

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 5

Test Code: SPE VO 1Jlb No: 15A

Sample Description: BH-I8 W4

Test Description: Volatile Organics-SpecJMS

Collected: 12/08/94 11:30

Category: WATER

Analyst: ncr

lDstrUIDCIlt: HPMS_l Injected: 12/11/94

File #: 1KE04471

Factor: 1 Units: ugIL Verified: RJW

CAS#

127-18-4

SURROGATES:

COMPOUND

Tetrachloroethylene

DETECTION

RESULT LIMIT

NO 5

1 ,

1,2-Dichlcroetbane-d4

Toluene-d8

p-Bromofluoroben%ene

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIMIT .. DETEC"1'ION LIMIT

NO .. NOT DETECTED AT OR ABOVE '1'BE METHOD

DETEC"1'ION LIMIT (MOL)

m t Recove%Y (76t - 114t)

.l2! 'Recovery (8st - 110')

l.a .t Recovery (8lit - 115')
Order # N4-12-149

December 16, 1994 15:56

KEMRON ENVIRONMENTAL SERVICES

TEST METHODOLOGIES

Volatile analytes analyzed by pU%'9'e and trap GC/MS.

SW-846 ME'l'HOD 8240 (MODIFIED FOR MEGABORE COLUMN)

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KEMRON ANALYST LIST

Ohio Valley Laboratory

11/17/94

AJS - - Ashlee J. Scott

ALe - - Ann L. Clark

BAR. - - Beth A. Raper

BMK - - Bently H. Knight

CEB Chad E. B8%Des

DIH - - Deanna. :I. Besson

DJP - - Douglas J. Poling

DLP - - Dorothy L. Payne

DS'l' - - Dennis S. Tepe

ECL - - Eric C. Lawson

EDG - - Eric D. Gerkin

FEB - - 'Fay E. Ha%mCn

FRH - - Fred R. Hcmtgomery

GWH - - George W. Hutchison

GSS - - Greg S. smith

HV - - Hema Vilasagar

JA - - Judy.Amador

JBC - - Jim B. Crawford

&lEC - - Jesse E. Chapman

JYH - - Ji Y. Hu

JKH - - June K. Morris

JLH - - Janice L. Holland

ULL- Janice L. T·zmdshof

.:mM - - "Jim H. Monk

JWR - - John W. Richards

Km\- Kim H. Archer

KMM - - Kevin H. HcDonald

KPO - - Kevin P. Overstreet

LMW - - Lisa H. Wagner

HBJ Hatthew B. Jarrell

HDA - - Hike D. Albertson

HOC- -" Hichael D. Cochran

m.s - - Hichael L. Schimmel

HZL - - Melanie Z. Lewis

P.:JH - - Pamela J. Holtz

PNW - - Phillip N. wright

PST - - Pam S. Tor.DeS

REB - - Russell E. Burton.

UK - - Robert B. Eyer.

RJS - - Rick J. Santos

RWC - - Rodney W. campbell

SCM - - Susan C. !IOellendick

sew - - "Stephen C. West

sm - - Stephanie L. Mossburg

SPL - - Steve P. Le8%n

SR Shahla~Rogers

SSS Susan S. Snodgrass

'rAS - - Tamela A. Sams

'1'K'1' - - Tanya K. Troutner

T1iD - - Teresa L. Davis

WCD - - Wade C. Dawson

WDL - - William D. Landshof
KEMRON Environmental Services -"J

. 109 Starlite Park

Marietta, Ohio 45750

Phone: (614) 373-4071

KEMRON Erniromnemal Services

7926 lones Branch Drive

McLean, VA 22102 .

Attn: DaDa Jackson

,

Order #: N4-12-264

Date: D~cmbCI 22, 199417:25

Work ID: 80S7-004IDPSC-Philadclpbia Dale Received: 12115/94

Date Completed: 12122194

CIiem Code: KEMRON_Me

sample

Number

01

03

OS

CH·l

CH-3

CH-S

Sampl~

Description

SAMPLE IDENTIFICATION

S:azuplc

Number

02

04

06

CH-2

CH4

CH-6

Sample

DC5Cnption

All results on #Jli4sls1udsu on 'rrpDtt~4 !'AS RECF:TVE:D- unlas otherwise·

specified. 17ziirepon shtzllllDl be reprrxIucttJ, at;q't in Jul~ without the written approval ofKEMRON. .

."

Certified bY

LeslieBud'Da
: '1 ..... j I,", r'\C • :,,'JJI JW •

Order I: N4-12-264

Deeember 22. 1994 17:26

KEMRON ENVIRONMENTAL SERVICES

RESULTS BY SAMPLE

Page 2

This is 10 certify tllat the following samples were analyzed using 800d

klboratory prQczices 10 show the joUowing resulrs.

SAMPLE ID: 01 CH-l Collected: 1.2/14/94 10:00 Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT L1MlT UNITS ANALVZEDBY METHOD

Percent So~ida as 1 " ¥t. 12/15/'4 RiK Gnvimetric

Petroleum HydrocarbcnB <Z::; 25 "'5/}c'1 12/~S/94 DMK :3SS0/.c.;u.~

SAMPLEID: 02 CH-2 Collected: 12/14194 10:30 CAtegOry: SOn.

TEST DETECTION DATE

DESCRIPTION RESULT LIMlT UNITS ANALVZED BY METHOD

Percent Solids 83 1 --~-'-- It ¥t. 12/15/94 REI< Gravime~ric:

Petroleum Hydroca:bons <25 25 lI15J/kg 12/15/'4 BM!<: 3550/418.1

SAMPLE ID: 03 CH·3 Collected: U/14/94 10:55 Category: SOIL

TEST DE'IEC'I10N DATE

DESCRIP1l0N .RESULT LIMIT UNITS ANALYZED BY MEmOD

l_ Percent Solids 81 1 It wt. 12/15{94 REI' C:;ravim.e~r1c

Pet",leurn Bydl:'OcarbenSl c2S 25 1!l9'/Jcg 12/15/94 BMK 3550/418.1

SAMPLE ID.: 04 CH-4 Collected: 1.2/14/94 U:15 CategDIY: SOn.

TEST DETECTION DATE

DESCRIP'I10N RESULT L1MIT . UNITS ANALYZED BY METHOD

perc:ent--6Qlicls 83 1 , ¥t. 12/15/94 REI: GraviTlletric

'Petroleum HydrCca:bona <25 25 ms/kg 11/15/94 BMK 3~~C/"'8.1

SAMPLE 10: OS CH-S COUC:e:.ted: 11/14"4 11:40 carcgOIy: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT 1~ ANALYZED BY METHOD

Percent Seli&l 91 1 t ¥t. 12/15/'4 REK Gravime~ric

Pet.rcleum Hydroc:artlcns c2S 2S lIW3/kg 12/15/94 BMK 3SS0/41S.1

SAMPLE ID: 06 CB-6 CoUected: 12/14/94 U:~ Category: SOIL

TEST DETECTION DATE

DESCRIPTION RESULT LIMIT UNITS ANALYZED BY METHOD -

Perc:ent SelidJJ 84 1 , we. 12/15/94 UK Gravimetric

Petroleum HyCrocarbons 35 25 mg/kg 12/15/94 BMK 3550/418.1
f , :RCM KEMRON 0~. VA::EY LAB PD8~/OQ9

Order # N4-12-264

Dc:ccnbcr 22. 1994 17:26

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

, .

Test Cede: SPE GC

Sample DeJcription: CH-I

Test Description.: Special Request

ADalyst: MLS Extracted: 12/15/94

lnst1'UIDCDt: HP_IOF Injected: 12/22194

CAS#

50-29-3

NOTES DEFINITIONS FOR THIS SMPLE

tlET LIMIT .. PE'l'EC'1'ION LIMIT

ND • NONE DETEc:n:o

• .. SEMI-omurrITATn'E SCREEN ONLY

Lab No: 01A.

File #: 0091=0301

Factor: 660

COMPOUND

Collected: 12114/94 10:00

Category: SOIL

Units: uglkg Verified: DAB

DETECTION

RESULT LIMIT

410 66

\

)
1';-??-O A 05' ';O'O~1 . • '" _,- ",,'i • '- • TO WAPORA MCCL~AN CGRP. ;i!':::.!l)r:c.

• -." '" w' "" _ ..

Order # N4-12-264

22. 1994 17::!6

KE/lRON ENVIRONMENTAl. SERVICES

TEST RESULTS BY SAMPLE

Page 4

(

Test Code: SPE GC Lab No: 02A

Sample Description: CB-2

Test Description: SpecW Request

Analyst: MLS &tra=d: 12/15/94 File II: 033F0901

InsEJ'U.mC11t: HP_lOF Injected: 12121/94 Factor: 66

CASI COMPOUND

50-29-3 4,4'-DDT

NOTES "NIl t3l::l:'TWITIONS FOR THIS SAMPLE

DE'!' LIMIT • DS'I'E:CTIOH LIM!T

NO eo NONE DETEC'l'ID • .. SEMI-QtJ»noI'l'ATIVESCREEN om.y

Collected: 12/14194 10:30

Category: SOIL

. Units: ug/kg Verified: DAB

DETECrION

RESULT . LIMIT

18 6.6
:c WAPORA Y.C:~;AN COR?

.

.

Order , N4-1,2-264

Dcccmbet". 1~94 17:26

KEMRON ENVIRONMENTAL SeRVICES

TEST RESULTS BY SAM~~U:

Page .)

;.::,...r

Test Code: SP.E GC Lab No: 03A Collccteel: 12/14/94 10:55

Sample Description:CB-3 Category: SOIL

Test Description: Special Request

Analyst: MLS Extracted: 12/15/94 FUc #: 003F0101

Instrument: HP_IOF Injected: 12/22/94 Factor: 330000 Units: ug/lg Verified: DAB

DETECTION

CASI COMPOUND RESULT LIMlT

50-29-3 4,4'-DC1 220000 33000

-"":'~_.-

NO'nS "lm nF.FINI;::~:~S FOR THrS SAMPLE

DET I.IMI'1' =DI.:::..:.:crION LIMIT

1'«) .. NONE DETEC'l'ED

• • SEMI-QtWn'ITATIVE SCREEN ONLY

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f , :RnM • • v. l

-~rON ...~r; . "~'J.~. UyA....

TTrv__ • ..AT B TO WA?ORA MCC:EAN CORP. ?DJ7IQ09 .

Order # N4-12·264

December 22, 1994.17:26

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Pase6

, '

"fest Code: SPE GC

Sample Description: CB-4

Test Description: Special Request

Analyst: MLS' Extracted: 12115/94

Instrument: HP_IOF lnjectecl: 12/22194

NOTES 1\NP DEFINITIONS· FOR THIS SAMPLE

Dn LIMIT • DETEt:nON :LIMIT

Nr> =NONE DE'1'2erED

• • SEM1-~I'I'ATIVE SCREEN· ONLY

lab No: 04A Conec:tecl: 12/14/94 11:15

C1r.cgory:. SOIL

File #: OllF0301

Factor: 3300 Units: uglkg Verificc1: DAB

DETECl'ION

COMPOUND RESULT LIMIT

4,4 1 ·ODT 3100 330
f !

Order tI N4-12-264

December 2.2. 1994.17:26

KEMRONENWRONMENTALSSRWCES

TEST RESULTS BY SAMPLE Page)

Test Code: SPE GC Llab No: OSA CoUecwl: 1211419411:40

Sample Description: CR-! Category: SOIL

Test Description: Special Request

Analyst: MLS Extracted: 12/15194 File II: 006FOI01

Instrument: HP_IOF Injcc:tcd: 12/22/94 Factor: 165000 Units: uglkg Verified: DAB

DETEcrION 1 CASII COMPOUND RESULT LI1tnT

50-29-3 4,4'-DD'r 64000 16500

NOTES AND DEFINITIONS FOR 'I'EIS SAMPLE

DET LIMIT .. DJ5TEC'1'ION LIMIT

Nt) .. NONE DETEc:rJ::I)

• .. SEMI-Qt1AN'I'ITA:rIVE SCREEN ON"....Y

, . t
,, TO WA?ORA MCCL~AN CO~F.

Order II N4-12·264

Dcc=nber 22. 1994 17:26

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 8

1"est Code: SPE GC '" Lab No: 06A Collcc=d: 12/14/94 12:20

San!plc Description: CB-b category: SOn..

Test ~tion:' Special Request

Analyst: MLS Extratted: 12115/94 File II: Ol3F0301

InstnUDeI1l: HP_lOP lDjcc:ted: 12/22/94 Factor: 330 Units: uglkg verified: DAB

DETECTION . CASIJ COMPOtJND RESULT LIMIT , ,

50-~'-3 ",4 ' -1)D'1' 120 33

NO'nSl AND 1:)EFINITION'!l F012 'l'RT~ .uMPL2

nET LIMIT .. 1)ETECTION LIMIT

1m • NONE DE'l'EaED . • .. SEMI-Qt1ANTITA:rIVE SCRSEN om,y

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APPENDIX D

CHAIN·OF·CUSTODY FORMS

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ENVIRONMEN It ._ SERVICES

CHAIN-OF-CUSTODY RECORD

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...

Received loi-laboratory by: .

(Signature) ;"/" . .' .. "

Relinquished by: Date Time

(Signature)

Relinquished by:

(S;grj'Jre) , ,I, A1..JJ
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Attachment 2

FIGURE SUMMARIZING LOCATIONS, SIZES, AND

CONTENTS FOR DPSC USTS AND ASTS
I j

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KEMRON Environmenta/Services

109 Starlite Park

Marietta, Ohio 45750

Phone: (614) 373-4071

KemROn

EHVlROHMEHTAL SERVICES

KEMRON Environmental Services

7926 Jones Branch Drive

McLean, VA 22102

Attn: Dana Jackson .

Sample Sample

Number Description

01 NBH-3/4-6'

03 NBH-3/S-10'

05 NBH-3/12-14'

07 NBH-3/16-1S'

Order #: N4-12-123

Date: December 14. 1994 17:04

Work 10: S057-004/DPSC-Ph1ladelphia

Date Received: 12/07/94 . Date Completed: 12/14/94

Client Code: KEMRON_MC

SAMPLE IDENTIFICATION

Sample Sample

Number Description

02 . NBH-3/6-S'

04 NBH-3/10-12'

06 NBH-3/14-16'

OS NBH-3/20-22'

(

AU results on soUds/sludges are reported"AS RECEIVED" unless otherwise

specified.. nus report. shi:zll not be reproduced. except tIl

fulL 'without the written approval ofKEMRON,
I f

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 2

- Test Code: SPE_VO Lab No: OlA

Sample Description: NBH-3/4-6· '.

Test Description: VolatDe Orgam:::s-Spec/MS

Collected: 12/01/94 II )

Category: SOIL -

Analyst: TLD

Instrument: HPMS_1 Injected: 12/09/94

FUe #: 1KE04446

Factor: 1 Un1ts: ug/kg Verified: RJW

CAS* COMPOUND

DETECTION

RESULT LIMIT

1 ,

127-1B-4

SURROGATES:

Tetrachloroethylene NO 5

1,2-D1chloroethane-d4

Toluene-dB

p-Bramofluor~~enzene

NOTES AND DEFINITIONS POR 'l'RIS SAHPLE

Dl:T LIMIT :: DETECTION LIMIT

NO I: NOT DETECTED AT OR ABOVE '1'RE HEmOD

DETECTION LIMIT (HDL)

.- ---- .

.1S!1. % Recovery (70% - 121%)

II % Recovery (81% - 117%)

% Recovery (74% - 121%)

-~~ ..._-
f (

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 3

( Test Code: SPE_GC

Sample Description: NBH-3/4-6· .

Test Description: Special Request

Lab No: 01B Collected: 12/01/94 15:40

Category: SOIL

Analyst: ECL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: 12/12/94

FJIe #: 004FOIOI

Factor: 660 Units: ug/kg Verified: RJW

1 ,

1 '

1

:

CAS#

50-29-3

NOTES AND DEFINITIONS POR THIS SAMPLE

DET LIMIT • DETECTION LIHIT

NO • NONE DETECTED

• .. sma-QUANTITATIVE SCREEN ONLY

COMPOUND

4,4'-DDT

DETECTION

RESULT LIMIT

160 66
( (

Order # N4-12-123

December 14, 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 4

Test Code: SPE_VO Lab No: 02A

Sample Description: NBB-3/6-S' .

Test Description: Volatfie· Orgamcs-Spec/MS

Collected: 12/01/94 1

Category: SOIL-/

Analyst: TLD

Instrument: HPMS_l Injected: 12/09/94

FJle #: lKE04449

Factor: 1 Units: ug/kg Verified: Rrn

CAS* COMPOUND

DETECTION

RESULT LIMIT

1 •

127-18-4

SURROGATES:

'l'etrachloroethylene ND 5

l,2-D1chloroethane-d4

'l'oluene-dB

p-Bramofluorobenzene

JJ1.1. % Recovery (70% - 121%)

% Recovery (81% - 117%)

% Recovery (74% - 121%)

J '

j

NO'l'ES AND DEFmITIONS POR 'l'm:S SAHPLE

DET LDaT .. DE'l'ECTION LIMIT

ND .. NO'1' DETEC'l'ED AT OR ABOVE THE HE'l'HOD

DETECTION LIMIT (HDL) ** .. REANALYSIS CONFIRKS SAHPLE HATRIX· INTERFERENCE .. ,\.
I I

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 5

( Test Code: SPE_GC

Sample Description: NBB-3/6-S'

Test Description: Special Request

Lab No: 02B Collected: 12/01/94 15:46

category: SOIL

Analyst: ECL

Instrument: HP_IVF

-. - Extracted: 12/08/94

Injected: 12/10/94

FJle #: 024F0101

Factor: 66 Units: ug/kg Verified: RJW

CAS'

50-29-3

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIHI'.l' 0:: DE'.l'EC'l'ION LIHI'.l' .

NO .. NONE DETECTED

• .. SE!!I-QtJANTITATIVE SCREEN ONLY

COMPOUND

",,",'-DDT

DETECTION

RESULT LIMIT

NO 6,6
Test Code: SPE VO Lab No: 03A

Sample DesCription: NBH:3/8-10'

Test Description: Volatile Organics-Spec/MS

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 6

-. Collected: 12/01/94 15 I

category: SOIL /

Analyst: TKI'

Instrument: HPMS_1 Injected: 12/11/94

File #: 1KE04465

Factor. 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-1B-4

SURROGATES:

Tetrachloroethylene NO 5

1,2-D1chloroethane-d4

Toluene-dB

p-Bramofluorobenzene

NOTES AND DEFINITIONS' FOR THIS SAHPLE

DET LIHIT .. DETECTION LIMIT

NO .. NOT DETECTED AT OR ABOVE THE METHOD

DETECTION LIHIT (!!IlL)

.21. "Recovery (70% - 121") II % Recovery (81% - 117%)

12 % Recovery (74% - 121%)
I f

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE Page 7

( Test Code: SPE_GC

Sample Description: NBH-3/8-10··

Test Descr1ption: Special Request

Lab No: 03B Collected: 12/01/94 15:53

Category: SOIL

Analyst: ECL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: 12/12/94

File #: 005F0101

Factor: 660 Units: ug/kg Ver1fied: RJW

1 •

l

1 •

c~

CAS'

50-29-3

NOTES AND DEFINJ:TIONS POR THIS SAMPLE

DET LIMIT • DETECTION LIMIT

NO • NONE DETECTED

* • SEMI-Qt7ANTITATIVE SCREEN ONLY

COMPOUND

",,4 I_DDT

DETECTION

RESULT LIMIT'''-

390 66
f f

Order # N4-12-123

December 14, 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Pages

Test Code: SPE_VO Lab No: 04A

Sample Description: NBH-3/10-12'

Test Description: Volatile Orgamcs-Spec/MS

Collected: 12/01/94 II

Category: SOIL

Analyst: ncr

Instrument: HPMS_l Injected: 12/11/94

File #: 1KE04466

Factor: 1 .Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

1 ,

127-18-4

SURROGATES:

Tetrachloroethylene ND 5

I '

1

1,2-D1chloroetbane-d4

Toluene-dB

p-Bramo~luorobenzene

NO'l'ES AND DEFINJ:TIONS FOR THIS SAMPLE

DET LIHIT • DE'l'EC'I'ION LIHIT

ND • NOT DE'l'EC'l'ED AT OR ABOVE THE HE'l'HOD

DE'l'EC'I'ION LIHIT (MOL)'

% Recovery (70% - 121%)

n % Recovery (B1% - 117%) n % Recovery (74% - 121%)
,,

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 9

( Test Code: SPE_GC

Sample Description: NBH-3/10-12'

Test Description: Special Request

Lab No: 04B Collected: 12/01/94 16:00

category: SOIL

Analyst: EeL

Instrument: HP_IVF

Extracted: 12/08/94

Injected: .12/10/94

Flle #: 026F0101

Factor: 66 Units: ug/kg Ve:r1fied: RJW

L

c_

CAS'

50-29-3

NOTES AND DEFINITIONS FOR THIS SAHPLE

DET LIMIT c DETEC'l'ION LIMIT

ND c NONE DETEC'l'ED

• c SEHI-Qt1AN'1'ITA'l'IVE SCREEN ONLY

COMPOUND

4,4'-DD'l'

DETECTION

RESULT LIMIT

ND 6.6
f f

Order # N4-12-123

December 14. 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 10

Test Code: :' 'E_VO Lab No: 05A

Sa:inple Description: ,,:B-3/12-14'

Test Description: vulatlle Organics-Spec/MS

.....-...,

co;].::.:ted: 12/01/94 1E. ~)

CaL::gOry: SOIL

Analyst: TKT

Instrument: HPMS_l Injected: 12/11/94

File #: lKE04467

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND DETECTIQN

RESULT LIMIT

1.27-1.8-4

SURROGATES:

Tetrach1oroetbylene ND s

1,2-Dichloroethane-d4

Toluene-d8

p-Bramofluorobenzene

II % Recovery (70% - 121.%'

% Recovery (81% - 11.7%' ~."'!. % Recovery (74% - 121%'

, '

NO'l'ES AND DEFINITIONS FOR '!'HIS SAHPLE

DET LIMIT • DE'l'EC'l'ION LIMIT

ND • NOT DE'1'EC'l'ED AT OR ABOVE '!'HE HE'!'HOD

.DE'l'EC'1'ION LIMIT (HDL,

.... SAHPLE DILtJ'I'ION CONFIRMS SAHPLE HA'l'RDt INTERFERENCE

/
I I

Order # N4-12-123

December 14.1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 11

( Test Code: SPE_GC

Sample Description: NBH-3!12-14',

Test Description: Special Request

Lab No: 05B Collected: 12/01/94 16:06

Category: SOIL

Analyst: ECLExtracted: 12/08/94

Instrument: HP_IVF Injected: 12/10/94

File #: 038F0501

Factor: 66 Units: ug/kg Verified: RJW

50-29-3

COMPOUND

",,",'-DDT

DETECTION

RESULT LIMIT

22 6.6

L

NOTES AND DEFINITIONS FOR THIS SAMPLE

DET LIKIT • DETECTION LIKIT '

NO I::: NONE DETECTED • I::: sma-QUANTITATIVE SCREEN ONLY

....__ .

-";'"~--'-
Order # N4-12-123

December 14, 1994 17:04

KEMRON ENVIRONMENTAL SERVICES

TEST RESULTS BY SAMPLE

Page 12

Test Code: SPE_va

Sample Description: NBB-3/14-1S'

Test Description: VolatDe Organics-Spec/MS

Lab No: 06A Collected: 12/01/94 16:

Category: SOIL

Analyst: TKT

Instrument: HPMS_l Injected: 12/11/94

Flle #: 1KE04468

Factor: 1 Units: ug/kg Verified: RJW

CAS' COMPOUND

DETECTION

RESULT LIMIT

127-18-4

SURROGA"lT'.:..S:

Tetra~oroethylene ND 5

1.2-D1chloroethane-d4

Toluene-d8

p-Bramofluorobenzene

II % Recovery (70% - 121%)

% Recovery (81% - 117%)

% Recovery (74% - 121%)

NO'l'ES AND DEFINITIONS FOR THIS SAHPLE

DET LIHIT • DE'l'EC'I'ION LIHIT

ND • NOT DE'l'EC'l'ED AT OR ABOVE THE HE'l'BOD

DE'l'EC'I'ION LIHIT (HDL)

••• REANALYSIS CONFIRMS SAHPLE MATRIX IN'rERP'ERENCE

.... , ../
FIGURE 2-3

LOCATION OF UST's AND AST's

AT DPse

ASTlUST SCHEDULE

"

*

SAND AlLEO

DEFENSE PERSONNa SUPPORT CENTER

PHILADElPHIA, PA.

PARKING LOT

<I> JO,OOO GAl. OIESa (uST)

® (3) 10,000 GAL. GAS/OIESa (UST)

® (5) 25,000 GAl. 16 OIL (UST)

@ 550 GAL WASTE OIL (UST)

® (2) 10,000 GAL. FUa OIL (UST)

*

® (2) GAL. O.D.T. (UST)*

\!) (2) 200,000 GAL. 16 OIL (AST)

o

C'I

A

HUMPHREY ST.

B

__'_5---K,

'BUILDING 11

t;::;

Q

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co

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o 1 C I

BUILDING 9

E

SlREET'

BUILDING JO

F

SlREET

itO L-__PAR_K_IN_G_L_O_T_--i

BASH

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UIILDING 21

CII O§(V

BLDG 28

JIl

SCHUYLKILL EXPRESSWAY

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20 1

..,; ...: t* lIJ lIJ

ci ci it . a:" -7: rl )1

CHAIN UNK FENCE OREGON AVENUE

100·

0 100' 200·

' G,wHIC SCALE '

2010 CABOT BLVD 
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.- --- :- .

Attachment 3

SUMMARY OF FIELD INVESTIGATION TASKS
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BLDG. 8 := 

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BLDG. 4

BLDG. 1

BLDG. 2

ROGERS STREET

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U.S. ARMY C

HUNTS

ngure 3-1

MONITOR WELL AND SOIL BORING LOCATIONS ENVIRON

a: ENG

..=====================
c

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Attachment 4

ES&E MONITORING WELL AND SOIL BORING LOCATION MAP

(ADDENDUM TO APPENDIX F)
c

c

SUMMARY OF FIELD INVESTIGATION TASKS

DPSC, PHILADELPHIA, PENNSYLVANIA

TASK CONTRACTOR DATES PERFORMED

Ground Penetrating Radar Environmental Services of September 1994

Survey America, Inc.

Active Soil Gas Survey Kemron/Versar September-October 1994

SCAPS/Hydropunch Versar/U.S. Army Corps October-November 1994

of Engineers

DDT UST Contamination Kemron November-December

Investigation 1994

Soil Boring and Huntingdon Empire November 1994-March

Sampling/Monitoring Well SoilsjVersar 1995

Installation

Surveying of Sampling James M. Stewart January-March 1995

Locations Surveyors

Water Table Elevation Versar/GES October 1994

Measurements December 1994

March 1995

Passive (PETREX) Soil Northeast Research February 1995

Gas Survey Institute

Free Product/ Versar March 1995

Groundwater Sampling

Aquifer (Slug) Testing Versar March 1995