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HR[XI FD1 Al. kAC JION RE POR I

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MEIKI'NS SE StIi'PA ( EN\I FR R (II\MONID

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963 2

FINAL

REMEDIAL ACTION REPORT

OPERABLE UNITS 10 & 11

DEFENSE SUPPLY CENTER RICHMOND

RICHMOND, VIRGINIA

Prepared For:

Defense Supply Center Richmond

Defense Logistics Agency

Air Force Center for Environmental Excellence

Prepared By:

Earth Tech, Inc.

Contract No. FA8903-04-D-8671

Task Order 0035

September 2008

8005 Outer Circle Rd., Brooks City-Base, TX 78235EAT TCH A COT 210.271.0925 FP210.271.3061 E RHTC EOwww.earthtech.aecomtcom

SS3 3

23 September 2008

Mr. Roy Shrove, CfIHHQ AFCEEIEXA3300 Sidney BrooksBrooks City-Base, Texas 78235

Subject: Final (signed) Remedial Action Report, Op~erable Units 1 0 and II, Defense Supply CenterRichmond (DSCR).Contract No. FA8903-04-D-8691, Task Order 0056

Dear Mr. Shrove,

Earth Tech, Inc. (Earth Tech) is pleased to submit the above-referenced document (with approvalsignatures). Additional copies of this document have been issued as shown on the attached distribution list.

If you have any questions or comments, please contact the undersigned at (210) 271-0925.

SincerelyEarth Tech AECOM

4.Manish M Joshi, P.E.Project Manager

encl: Final Remedial Action Report, Operable Units 10 and I11, DSCR

I of 2

Distribution ListFinal Remedial Action Report, Operable Units 10 and 11

Defense Supply Center Richmond

Mr. Roy ShroveHQ AFOBEEEXA3300 Sidney BrooksBrooks City-Base, Texas 78235Tel: (210) 536-4502(I electronic copy)

Mr. Mark LeeperDefense Supply Center RichmondDSCR-SD, Building 80 (5 Edlavitch)8000 Jefferson Davis HighwayRichmond, VA 23297-5000Tel: (804) 279-4129(2 paper copies + 2 electronic copies)

Mr. Jack Potosnak (31-S 1 3)U.S EPA, Region 31650 Arch StreetPhiladelphia, PA 19103-2029Tel: (215) 814-3362(3 paper copies + 2 electronic copies)

Mr. Jim CutlerVirginia Department of Environmental QualityDivision of Waste Operations629 E. Main Street, P.O. Box 10009Richmond, VA 23240-0009Tel: (804) 698-4498(I paper copy + I- electronic copy)

Mr. Phil DawsonDefense Logistics AgencyEnvironment and Safety (DES-E)8725 John J Kingman Road, Suite 2639Fort Belvoir, VA 22060-6221Tel: (703) 767-6255(I electronic copy)

2 of 2 EARTH TECH AECOM

93Final Remedial Action ReportDSCR Operable Units/fl & II September 2008

Table of ContentsRECORD OF PREPARA TION, REVIEW, AND APPROVAL ................................... iv

I IN TRODUCTION .............................................................................. 1-1

2 O UJO ANDO0UJI IFINA LREMEDIES..................................................... 2-1

2.1 OU 10 Remedy............................................................................. 2-12.1.1 Institutional Controls................................................................. 2-1

2.2 OU It Remedy............................................................................. 2-22.2.1 Institutional Controls................................................................. 2-3

2.3 OU 10 and OU II Remedial Action Work Plan ...................................... 2-4

3 INSTITUTIONAL CONTROLS............................................................... 3-1

4 REMEDIALA CTHON FIELD ACTIVIES................................................... 4-1

5 FINAL INSPECTIONS........................................................................ 5-1

5.1 Final Inspection ........................................................................... 5-1

5.2 Health and Safety ......................................................................... 5-1

6 SUMMARY OF PROJECT CAPITAL COSTS .............................................. 6-1

7 CONTACT INFORMATION .................................................................. 7-1

8 REFERENCES.................................................................................. 8-1

9 6 3Final Remedial Action ReportDSCR Operable Units 10 & /I/ September 2008

List of FiguresFigure 1: Operable Units I0 and II1, DSCR

Figure 2: OU 10 Site Map

Figure 3: OU 1 1 Site Map

Figure 4: OU 10 Vegetative Cover

Figure 5: OU I I Vegetative Cover

List of AppendixesAPPENDIX A: OU 10 Land Use Controls

APPENDIX B: OU 11I Land Use Controls

APPENDIX C: Site Photographs

9 63 7Final Rem edial/Action ReportDSCR Operable Units 10 & II September 2008

Acronyms and AbbreviationsCERCLA Comprehensive Environmental Response, Compensation, and Liability Act

DDT dichlorodiphenyltrichloroethane

DLA Defense Logistics Agency

DoD Department of Defense

DSCR Defense Supply Center Richmond

ERP Environmental Restoration Program

ICs Institutional Controls

LUCs Land Use Controls

LLJCIP Land Use Control Implementation Plan

OU Operable Unit

NPL National Priorities List

PCB polychlorinated biphenyl

PPE personal protective equipment

RA Remedial Action

RAO Remedial Action Objectives

RD Remedial Design

ROD Record of Decision

TS Transitory Shelter

US EPA United States Environmental Protection Agency

VDEQ Virginia Department of Environmental Quality

963Final Remedial Action ReportDSCR Operable Units IO & II September 2008

RECORD OF PREPARATION, REVIEW, AND APPROVAL

Remedial Action ReportOperable Units 10 & 11

Defense Supply Center Richmond

This report has been prepared in accordance with EPA OSWER Directive 9320.2-09A and will

be used, along with the Remedial Action Work Plan (DSCR 2008), as the basis for development

of the site Fina Close-Out Report for Operable Units 10 & 1.

Remedial Action DSCR. Contractor:Report PreparedBy: Signature _ _ _ _ _ _ _ _ _ _ _ _

NamelTitle: Manish M Joshi, Project ManagerEarth Tech AECOM

_________________ Date: I1 September 2008Remedial Action DSCR Official:Report ApprovedBy: Signature A,

Namne/fTil: Mark LeeperEnvironmental Protection Specialist

Date: 12 September 2008Remedial Action EPA Region III Official:Report ApprovedBy: S

Nam tle an osi soiate DirectorO ceof Federal Facility Renmediation

and Site Assessment

_ _ _ _ _ _ _ _ ~~~~~Date:Remedial Action VDEQ Official:Report ApprovedBy: Signature

Namcrritlc: Durwood H. Willis, DirectorOffice of Remediation Programs

Date: 91.1 1

iv

963 9Final Remedial Action ReportDSCR Operable Units 10 & II September2008

1 INTRODUCTION

The Defense Supply Center Richmond (DSCR) facility is located in Chesterfield County,

Virginia, approximately 8 miles south of the city of Richmond and 16 miles north of the city of

Petersburg. The installation is the lead Department of Defense (DoD)) center for aviation weapon

systems and environmnental logistics support. In 1980, the DoD placed the DSCR facility in its

Environmental Restoration Program (ERP). In 1984, DSCR was identified as a candidate for the

Superflind National Priorities List (NPL), and in 1987, the installation was officially placed on

the NPL. The ERP at DSCR is being conducted under the Comprehensive Environmental

Response, Compensation, and Liability Act (CERCLA), as amended, and has been organized

into thirteen Operable Units (OUs) that include nine source (soil) OUs, three groundwater OUs,

and one groundwater interim action OU.

This document summarizes the remedial action (RA) activities conducted for the implementation

of the selected remedies at OUs 10 and I I at DSCR. OU 10 consists of soils impacted by past

operations at former Building 68 and is located in the northern part of the installation. From

1954 to 1972, Building 68 was used for pest control operations and as a storage site for

pesticides that were scheduled for disposal. Beginning in 1972, this gravel lot was used to store

electrical transformers and as a parking area for trucks. A transformer oil spill, containing

polychlorinated biphenyls (PCBs), occurred in July 1980. Stained surface soils in the area of the

oil release were subsequently removed and disposed of off-installation. OU I I consists of soils

impacted by past operations at former Transitory Shelter (TS) 202 and is located near the

southwestern boundary of the installation. TS 202 was an open storage shed used to store

supplies, mainly foaming agents. The east bay of TS 202 housed 55-gallon drums that contained

a 5 percent solution of the pesticide dichlorodiphenyltrichloroethane (DDT). In 1981, DSCR

documented that an unspecified number of drums had leaked. Following discovery of the leak,

the TS 202 floor was removed along with the underlying impacted soil and clean soil fill was

used to backfill the excavation. The storage facility was then paved, and a berm was installed in

the north end of the storage area.

Based on the OU-specific investigations and evaluations, DSCR and United States

Environmental Protection Agency (US EPA), with concurrence from Virginia Department of

Environmental Quality (VDEQ), have selected Institutional Controls (ICs) to be the preferred

1-1

963 JiFinal Remedial Action ReportDSGR Operable Units IC & II September 2008

remedy to address impacted soils at OUs I0 and I11. These remedies have been outlined in the

OU 10 and OU II Records of Decision (ROD) (DSCR, 2007a and b). Figure 1 shows thelocations of OU 10 and OU 1 1 at DSCR. In addition to ICs, the RODs mandated that vegetative

covers will be installed over the gravel at OUs 10 and II as ecological enhancements. Thevegetative covers will minimize ifugitive dust, surface soil erosion and runoff, thereby limiting

potential fu~ture soil migration to the storm sewer system.

1-2

963 RFinal Remedial Action ReportDSCR Operable Units /0 & 1I September 2008

2 OUI10AND OUI11FINAL REMEDIES

The following presents summaries of the selected remedies presented in the OU 10 and OU II

RODs. The Remedial Action Objectives (RAOs) for OUs 10 and 11I are to:

* Prevent future residential exposure to impacted soils; and

* Prevent future on-installation use of groundwater as drinking water.

2.1 OU 10 Remedy

Figure 2 presents a site map of OU 10. The Defense Logistics Agency (DLA), DSCR, and

USEPA, with concurrence from VDEQ, selected ICs as the preferred remedy for OU 10

impacted soils. In addition to ICs, the following requirements were included in the OU 10 ROD

(DSCR, 2007a):

• A vegetative cover will be installed over the gravel at OU 10 as an ecological enhancement.

The vegetative cover will minimize fugitive dust, surface soil erosion and runoff, thereby

limiting potential future soil migration to the storm sewer.

• The vegetative/gravel cover will be maintained to limit potential future transport of impacted

soils through the storm sewer to Falling Creek Tributary.

o In the event that impacted soils are removed in the future, they will be disposed of in a

permitted facility and replaced with clean fill to prevent exposure.

* In the event that impacted soils are disturbed in the future, erosion and sediment controls will

be required to prevent migration to the storm sewer.

* A preconstruction assessment by the DSCR environmental group will be required in the

event that excavation activities are planned.

• Notification to USEPA and VDEQ of changes in land use at OU 10 that could affect

implementation or the effectiveness of the institutional controls required by the OU 1 0 ROD.

2.1.1 Institutional Controls

Potable groundwater use has been prohibited installation-wide. Land use will be solely for

industrial purposes until conditions allow for unlimited use and unrestricted exposure. Land use

controls (LUCs) will be attached to the property deed to restrict groundwater use and prohibit

2-1

963 ia2Final Remedial Action ReportDSCR Operable Units 10 & II September 2008

residential development and land use for schools or childcare facilities, should the property

change ownership in the future before completion of the remedy.

The DSCR Environmental Land Use Control Implementation Plan (LUCIP) will be amended to

include each OU as RODs are finalized. The specific OU 10 ICs will be outlined in a separate

appendix of the Environmental LUCIP.

An annual inspection will be conducted to determine whether the institutional controls remain

effective and that land and groundwater use restrictions are being achieved. The annual

inspections will describe deficiencies or violations and proposed measures or corrective actions

taken or required. In the unlikely event of a deficiency or violation, DSCR will take appropriate

corrective action.

DLA is responsible for implementing, maintaining, reporting on, and enforcing institutional

controls. Although DLA may transfer procedural responsibilities to another party by contract,

property transfer agreement, or other means, DLA shall retain ultimate responsibility for remedy

integrity.

Land use at OU IC is expected to remain industrial, and exposure to impacted soils will be

limited through institutional controls until concentrations are reduced to acceptable levels for

unlimited exposure and unrestricted use. The remedy will be considered effective and complete

when all parties (DLA, DSCR, USEPA, and VDEQ) agree that the remedy is complete. As

required by the CERCLA, five-year reviews will be conducted to ensure that the remedy remains

protective of human health and the environment until site conditions allow for unlimited use and

unrestricted exposure.

2.2 OU Ii1 RemedyFigure 3 presents a site map if OU H1. DLA, 05CR, and USEPA, with concurrence from

VDEQ, selected lCs as the preferred remedy for OU I I impacted soils. In addition to ICs, the

following requirements were included in the OU 11I ROD (DSCR, 2007b):

0A vegetative cover will be installed over the gravel at OU 1 1 as an ecological enhancement.

The vegetative cover will minimize fugitive dust, surface soil erosion and runoff, thereby

limiting potential future soil migration to the storm sewer.

2-2

963 .13Final Remedial Action ReportDSC'R Operable Units 10 & II September 2003

* The asphalt/gravel/vegetative cover will be maintained to limtit potential future transport of

impacted soils through the storm sewer to Kingsland Creek.

* In the event that impacted soils are removed in the future, they will be disposed of in a

permitted facility and replaced with clean fill to prevent exposure

* In the event that impacted soils are disturbed in the future, erosion and sediment controls will

be required to prevent migration to the storm sewer.

* A preconstruction assessment by the DSCR environmental group will be required in the

event that excavation activities are planned.

* Notification to USEPA and VDEQ of changes in land use at OU 11 that could affect

implementation or the effectiveness of the institutional controls required by the OU 11I ROD.

2.2.1 Institutional ControlsPotable groundwater use has been prohibited installation-wide. Land use will be solely for

industrial purposes until conditions allow for unlimited use and unrestricted exposure. LUCs

will be attached to the property deed to restrict groundwater use and prohibit residential

development and land use for schools or childeare facilities, should the property change

ownership in the future before completion of the remedy.

The DSCR Environmental LUCIP will be amended to include each OU as RODs are finalized.

The specific OU 1 1 ICs will be outlined in a separate appendix of the Environmental LUCIP.

An annual inspection will be conducted to determine whether the institutional controls remain

effective and that land and groundwater use restrictions are being achieved. The annual

inspections will describe deficiencies or violations and proposed measures or corrective actionstaken or required. In the unlikely event of a deficiency or violation, DSCR will take appropriate

corrective action.

DLA is responsible for implementing, maintaining, reporting on, and enforcing institutional

controls. Although DLA may transfer procedural responsibilities to another party by contract,

property transfer agreement, or other means, DLA shall retain ultimate responsibility for remedy

integrity.

2-3

963 f4Final Remedial Action Report

DSCR Operable Units/C0 & 11 September 2008

Land use at OU I 1 is expected to remain industrial, and exposure to impacted soils will belimited through institutional controls until concentrations are reduced to acceptable levels forunlimited use and unrestricted exposure. The remedy will be considered effective and complete

on-installation when all parties (DLA, DSCR, USEPA, and VDEQ) agree. As required byCERCLA, five-year reviews will be conducted to ensure that the remedy remains protective ofhuman health and the environment until site conditions allow for unlimited use and unrestricted

exposure.

2.3 OU 10 and OU 11 Remedial Action Work PlanA document presenting the remedial design (RD) and the RA field activities to at OUs 10 and I1Iwas finalized in 2008 (DSCR, 2008). The OUs 10 and II remedial action activities were

conducted in accordance with this Remedial Action Work Plan.

2-4

93 xFinal Remedial Action ReportDSCR Operable Units 10 & II September 2008

3 INSTITUTIONAL CONTROLSIn accordance with the OU 10 and OU II RODs, the DSCR Environmental LUCIP (DSCR,2007c) has been amended to include OU-specific ICs. The OU 10 and II ICs includedesignation of the land use solely for non-residential purposes until conditions allow forunlimited use and unrestricted exposure to impacted soils. The ICs will also include therequirement for a pre-construction assessment before construction activities can be undertaken atOU 10 and OU 1I. Copies of the OUIO and OU 11 LUCs are provided in APPENDIX A andAPPENDIX B respectively.

As specified in the Remedial Action Work Plan, annual inspections will be conducted todetermine whether the ICs remain effective and that land and groundwater use restrictions arebeing achieved at OUs IO and I 1. The annual inspections will describe deficiencies or violationsand proposed measures or corrective actions taken or required. In the unlikely event of adeficiency or violation, DSCR will take appropriate corrective action.

Annual inspections at OUs I0 and II1 were conducted during the week of 8 September 2008.The inspection team concluded that ICs were effective and no deficiencies were noted. Theannual inspection reports will be submitted under a separate cover.

3-1

963 11$Final Remedial Action Report05CR Operable Units/C0 & 11 September 2008

4 REMEDIAL ACTION FIELD ACTIVIESIn accordance with the OU 10 and OU I11 RODs, the following field activities were performed toimplement the OU 10 and OU 11I vegetative covers.

After designating the vegetative cover area, site clearance activities were performed at OUs 10and I I to remove large rocks and other obstructions. The cover area was graded and a minimumof 3" of top soil was placed to promote vegetative growth. The vegetative cover, consistingprimarily of native grasses and shrubs was placed over the top soil.

The benefits of native grasses and plants are that they are more likely to thrive under the localconditions while being less likely to invade new habitats. Native plants are well adapted to localenvironmental conditions, maintain or improve soil fertility, reduce erosion, and often requireless fertilizer than many alien plants. These characteristics save time and money and reduce theamount of harmful run-off threatening the surrounding aquatic resources. In addition,functionally healthy and established natural communities are better able to resist invasions byalien plant species. Maintenance activities for these vegetative covers are expected to be

minimal.

The vegetative covers installation began in late Spring 2008, and the field activities werecompleted by 30 June 2008. This cover was installed by DSCR and its support contractor, EarthTech AECOM. The covers are being inspected on a monthly basis for up to 6 months afterinstallation (until December 2008). Requirements for additional top soil, seeding or watering(during the initial growing season) will be determined during these monthly inspections. Oncethe vegetative covers are established, they will be inspected on an annual basis (during theannual site inspections). Maintenance activities (if required) will be performed after the annualinspection site visits,

4-1

Final Remedial Action Report 3DSCR Operable Units JO & II September 2008

5 FINAL INSPECTIONSFigure 4 and Figure 5 show the vegetative cover areas for GUs 10 and 11I respectively.APPENDIX C contains photographs of the sites (taken during the final inspection).

5.1 Final InspectionAn inspection of the completed remedial actions at GUs 10 and II was conducted on 9September 2008 by representatives of the US EPA and DSCR. Visual inspections of the OU,vegetative covers and storm sewers were conducted. No unresolved issues were noted at GUs i0and I I during the final inspection.

5.2 Health and SafetyNo health and safety problems were encountered during the remedy construction. ModifiedLevel 0 personal protective equipment (PPE) was utilized by site personnel during theconstruction activities. This PPE included coveralls, safety boots, nitrile gloves/leather gloves,and safety glasses.

5-1

963 laFinal Remedial Action ReportDSCR Operable Units /0 & /I September 2008

6 SUMMARY OF PROJECT CAPITAL COSTSThe following provides a summary of the costs for implementation of the OUs 10 and IIremedial actions:

Task Materials and Labor Cost Total Cost____ ___ ___ ____ ___ ___ Equipment Cost

Site preparation activities Approx. $5,000 Approx. $5,000 Approx. $1 0,000

conestalto ovetaieApprox. $8,000 Approx. $1 0,000 Approx. $18,000

Cover Inspections (fo~r six Approx. $1,000 Approx. $5,000 Approx. $6,000months after installation)

Subtotal Costs Approx. $14,000 Approx. $20,000

Total Costs Approx. $34,000

6-1

563 i19Final Remedial Action ReportDSCR Operable Units 10 & I/ September 2008

7 CONTACT INFORMATIONThe following presents the DSCR restoration team responsible for the OU 10 & OU I11 remedialactions:

Name Contact InformationMr. Mark Leeper DSCR-SD Environmental Office

Building 808000 Jefferson Davis HighwayRichmond, VA 23297-5000804-279-4129 (offic

Mr. Jim Cutler Virginia Department of Environmental QualityDivision of Waste Operations629 E. Main St., 4 th FloorRichmond, VA 23240-0009

____ ____ ___ ____ ____ ___ ____ ___ 804-689-4498 (officeMr. Jack Potosnak US EPA (3 HS 13)

1650 Arch StreetPhiladelphia, PA 19103-2029215-814-3362 (office)

Mr. Roy Shrove AFCEE/IWE

3300 Sidney BrooksBrooks City-Base, Texas 78235210-536-4502 (office)

Mr. Marnsh Joshi Earth Tech Inc.

8005 Outer Circle RoadBrooks City-Base, Texas 78235

____ ____ ____ ___ ____ ____ ____ ___ 210-271-0925 (office)

7-1

9t63 20Final Remedial Action ReportDSCR Operable Units 10 & II September 2008

8 REFERENCESDSCR, 2007a. Final Record of Decision for Operable Unit JO, Defense Supply Center

Richmond. July.

DSCR, 2007b. Final Record of Decision for Operable Unit 11, Defense Supply CenterRichmond. July.

DSCR, 2007c. Final Land Use Control Implementation Plan, Defense Supply Center Richmond.October.

DSCR, 2008. Final Remedial Design and Remedial Action Work Plan Operable Units JO andlIt Defense Supply Center Richmond. February.

8-1

963 2 1Final Remedial Action Report

DSCA Operable Units 10 & II September 2008

Figures

__________ 963 22

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963 27

Final Remedial Action Report.DSCR Operable Units /0 & /I September 2008

Appendixes

963 28Final Remedial Action ReportDSGR Operable Units 10 & 11 September 2008

APPENDIX A: OU 10 Land Use Controls

963 29

OPERABLE UNIT 10: BUILDING 68

Operable Unit (OU 10) consists of soils impacted by past operations at former Building 68 and is locatedin the northern part of the installation, commonly referred to as Zone I. OU 10 is located at theintersection of Road A and North 5th Street within Defense Distribution Depot Richmond Virginia (arestricted DSCR area enclosed by fencing and locked or guarded gates), as shown in Figure E-1.Institutional controls (IC) were specified as part of the remedy for this location in the July 2007 Record ofDecision (ROD). IC objectives delineated in the ROD were to prevent future residential exposure toimpacted soils and prevent future on-installation use of groundwater as drinking water. In this way,inappropriate future site use and potential exposure to impacted soil would be prevented. Constituents ofconcern (COG) at OU 10 include metals (primarily arsenic), polycyclic aromatic hydrocarbons (PAl-s)and pesticides (dieldrin). The entire OH 10 surface area is covered by gravel with sparse vegetationbetween the gravel. Exposure to CO~s would be anticipated only if excavation was undertaken.

The land use controls for OH I0 are:

Groundwater Use Restrictions: Potable groundwater use has been prohibited at OH 10. DSCR iscurrently modifying Maintenance Regulation 4150.1 to prohibit potable use of groundwater throughoutthe installation.

Access Restrictions and Signage. OH 10 will continue operation as a restricted industrial area. BecauseDefense Supply Center Richmond (DSCR) is a secured Department of Defense facility, access is alreadyrestricted. OH 10 is located within the tenant organization confines of the Defense Distribution DepotRichmond, Virginia (DDRV), which has a separate fence. Additional badging/clearance are required toenter the DDRV area. This additional security provides a layering of controls and will continue to bemaintained, Installation police conduct routine security checks of this area. Access restrictions will bemaintained as long as DDRV occupies this area. Signs identify'ing the OH will be posted on the OH 10fence.

Preconstruction Assessment. Future industrial development, including excavation or site grading, is notprecluded. In the event of construction activities, health and safety measures will be followed. TheDSCR-SDE (Environment, Safety and Health Office operated under DLA Enterprise Support Richmond)must be consulted prior to excavation. DSCR-SDE will issue an environmental review document, whichwill outline the contaminant data in the area of the construction activity.

E-1I

963 30

For military construction projects at OU 10, an environmental site assessment will be conducted. Theenvironmental assessment will be completed prior to project design and submitted to DSCR-SDE forreview. Monitoring will include soil sampling prior to construction. DSCR-SDE may also issue anenvironmental review document, if necessary. Soil analyses, ambient air testing, and personnelmonitoring may be required during construction.

For non-military construction projects (i.e., routine maintenance or utility operations requiring excavation

or trenching) within the 00 10 footprint, an environmental review document will be issued by DSCR-SDE as specified in DSCR Maintenance Regulation 4150.1.

Depending on the type of construction activity, a health and safety plan may be required by the DSCR-SDE prior to work commencement. The plan may include air monitoring, personal protective equipment,

dust suppression and runoff control during construction, as necessary. In the event that impacted soils areremoved in the future, they will be disposed of in a permitted facility and replaced with clean fill toprevent exposure. In addition, if the impacted soils are disturbed in the future, erosion and sediment

controls will be required to prevent migration to the storm sewer.

Monitoring. Soil analysis, ambient air testing, and personnel monitoring may be undertaken duringconstruction activities, depending upon the type and location of the construction activity and the results of

the preconstruction sampling.

Property Transfer Restrictions. If the U.S. Army were to transfer 00 10 out of federal ownership,deed restrictions would apply to monitor future development within the site's physical boundaries. An

environmental review would be required before construction. Residential development or school or

childcare-related facility development would be prohibited, if the transfer occurs before property

conditions allow for unlimited use and unrestricted exposure.

Inspections and Five-Year Reviews. An annual site inspection will be conducted until 00 lO is deemedacceptable for unrestricted use. The annual site inspection will be documented and certified with the formiprovided as Figure 5-1 of the Final LUCIP. A five-year review will be conducted in accordance with theComprehensive Environmental Response, Compensation, and Liability Act until the terminationprovisions are met. Five-year reviews were conducted in 1997 and 2003. The next five-year review isplanned for 2008.

E-2

NOR ~~~THE)R M

ND SUPP11 ~~~ENTFR FIC.OOAPO

LEG~~~~~~t~~~~O RI~~~~CHMOND VIlRGINIA

hlF' I O~:1~ F U 10 SITE MAP

FIGURE

.<" 25 Elf~&

963 32Final Remedial Action ReportDSCR Operable Units 10 & /I September 2008

APPENDIX B: OU 11 Land Use Controls

963 33

OPERABLE UNIT 11: TRANSITORY SHELTER 202

Operable Unit (OU) I I consists of soils impacted by past operations at former Transitory Shelter

(TS) 202 and is located near the western boundary of the installation, approximately 170 feet east

of Road A between South 2nd and 3d Streets. OU I I is within Defense Distribution Depot

Richmond Virginia (a restricted DSCR area enclosed by fencing and locked or guarded gates), as

shown in Figure F-I1. Institutional controls (IC) were specified as part of the remedy for this

location in the July 2007 Record of Decision (ROD). IC objectives delineated in the ROD were

to prevent future residential exposure to impacted soils and prevent future on-installation use of

groundwater as drinking water. In this way, inappropriate future site use and potential exposure

to impacted soil would be prevented. Constituents of concern (COG) at OU I I include metals

(primarily arsenic) and pesticides. Approximately 97 percent of the OU-1 I surface area is

covered with asphalt or riprap. The remaining area has a vegetative cover. Exposure to COCs

would be anticipated only if excavation was undertaken.

The land use controls for OU I11 are:

Groundwater Use Restrictions: Potable groundwater use has been prohibited at OU I 1. DSCRis currently modifying Maintenance Regulation 4150.1 to prohibit potable use of groundwater

throughout the installation.

Access Restrictions and Signage. OU I I will continue operation as a restricted industrial area.

Because Defense Supply Center Richmond (DSCR) is a secured Department of Defense facility,

access is already restricted. OU I I is located within the tenant organization confines of the

Defense Distribution Depot Richmond, Virginia (DDRV), which has a separate fence. Additional

badging/clearance are required to enter the DDRV area. This additional security provides a

layering of controls and will continue to be maintained. Installation police conduct routinesecurity checks of this area. Access restrictions will be maintained as long as DDRV occupies

this area. Signs identifying the OU will be posted at OU I 1.

Preconstruction Assessment. Future industrial development, including excavation or sitegrading, is not precluded. In the event of construction activities, health and safety measures will

be followed. The DSCR-SDE (Environment, Safety and Health Office operated under DLA

Enterprise Support Richmond) must be consulted prior to excavation. DSCR-SDE will issue an

F-I

963 34

environmental review document, which will outline the contaminant data in the area of theconstruction activity.

For military construction projects at 03 I11, an environmental site assessment will be conducted.The environmental assessment will be completed prior to project design and submitted to DSCR-SDE for review. Monitoring will include soil sampling prior to construction. DSCR-SDE mayalso issue an environmental review document, if necessary. Soil analyses, ambient air testing,and personnel monitoring may be conducted during construction. For non-military constructionprojects (i.e., routine maintenance or utility operations requiring excavation or trenching) withinthe OU I I footprint, an environmental review document will be issued by DSCR-SDE asspecified in DSCR Maintenance Regulation 4150. 1.

Depending on the type of construction activity, a health and safety plan may be required by theDSCR-SDE prior to work commencement. The plan may include air monitoring, personalprotective equipment, dust suppression and runoff control during construction, as necessary. Inthe event that impacted soils are removed in the future, they will be disposed of in a permittedfacility and replaced with clean fill to prevent exposure. In addition, if the impacted soils aredisturbed in the future, erosion and sediment controls will be required to prevent migration to thestorm sewer.

Monitoring. Soil analysis, ambient air testing, and personnel monitoring may be undertakenduring construction activities, depending upon the type and location of the construction activityand results of the preconstruction sampling.

Property Transfer Restrictions. If the U.S. Army were to transfer OH I I out of federalownership, deed restrictions would apply to monitor future development within the site's physicalboundaries. An environmental review would be required before construction. Residentialdevelopment or school or childcare-related facility development would be prohibited, if thetransfer occurs before property conditions allow for unlimited use and unrestricted exposure.

Inspections and Five-Year Reviews. An annual site inspection will be conducted until 00 I I isdeemed acceptable for unrestricted use. The annual site inspection will be documented andcertified with the form provided as Figure 5-I of the Final LUCIP. A five-year review will beconducted in accordance with the Comprehensive Environmental Response, Compensation, and

F-2

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Liability Act until the termination provisions are met. Five-year reviews were conducted in 1997

and 2003. The next five-year review is planned for 2008.

I ~~~~~~~~~~~~~~~~~~~F-3

WAREHOUSER WAREHOUSE?

SOUTH ŽND SLOESEI

CC

E, 0~~~~~~

z

DEFENSE SUPPLY CENTER RICHAMONDLEGEND RITdOND, VIRGINIA

~~~~ * ~~~~~~~~~OPERABLE iNCIT

~~ -~~ . FI~~GURE

963 3?Final Remedlial Action ReportDSCR Operable Units IC & I I September 2008

APPENDIX C: Site Photographs

I:~~~W ai I 'cear' (n` r fJa'Allg ntirl I

llk~)2: C.) I I getatiitw I (. FO l iners

IIIN e elI t. Q k~el facnglie 1

I~~~~~~~~~~~~~~MIUg ai e

963 4 0

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ADMINISTRATIVE RECORD

FINAL PAGE