Barksdale AFB ORC Site Visit Presentation Slides - 17 Dec 2019.pdf

Air Force Civil Engineer Center I n t e g r i t y - S e r v i c e - E x c e l l e n c e

FY20 Texas, Louisiana Optimized Remediation

Contract – Barksdale AFB Site

Visit Briefing

Wallace Robertson AFCEC/CZOW Barksdale ISS

Environmental Restoration Program Manager 17 December 2019

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Briefing Agenda

Installation Overview Environmental Restoration Program Review ORC IRP Site Status ORC MMRP Site Status Site Tour

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Installation Overview

Barksdale AFB dedicated in 1933 Total acreage 21,945 of which 16,000 is forested

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Installation Overview

Developed west side of base is location of Headquarters AFGSC, 8th Air Force and 2nd BW

Building new facilities to meet needs requires demolition first

East Reservation of installation primarily open space with small amounts of development for industrial and housing purposes Timber management, oil/gas exploration

Development requires balancing natural resources management with changing mission requirements MMRP sites add additional constraints

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Environmental Restoration Program Overview

Performance Work Statement – 28 total sites Installation Restoration Program – 13 sites

Long Term Management for 6 sites Response Complete with LTM for 6 sites Achieve Site Closeout for 1 site Achieve Landfill Cap Replacement for 1 site

Military Munitions Response Program (MMRP) – 15 sites Long Term Management for 14 sites Site Closeout for former skeet range

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Program Overview

Current Contract Status – ORC related Performance Based Restoration – 58 sites

Period of Performance – September 2020 Six IRP sites & 12 MMRP sites with future LTM requirements Status: Completing final tasks in spring 2020

Remedial Investigation for 7 Sites Period of Performance – completed Six IRP sites with RC objectives in ORC Status: Revised Draft Final RI report under LDEQ review

FS/PP/ROD for 2 Sites Period of Performance – July 2021 Status: Final FS for TS935 and XU936 submitted to LDEQ

LUC Monitoring at LF034 & Repairs for LF003 Period of Performance – March 2021 LUC inspection for LF034; landfill cap minor repair for LF003 Landfill #2, & security fence repairs for LF003 (both landfills) Status: Draft Final Work plan under review by LDEQ

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Program Overview

Current Contract Status – ORC related Five Year Review – 20 sites

Period of Performance – December 2020 FYR for 7 IRP & 13 MMRP sites Status: Draft report in development

Current Contract Status – not ORC related Remedial Investigation for 13 Sites

Period of Performance – July 21 Groundwater investigation for former UST and Oil/Water Separator sites Status: Draft RI report under development

Expanded Site Inspection for PFOS/PFOA Water well survey plus additional tasks TBD Status: underway

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Barksdale IRP Sites Status Six Sites with Long Term Management

Landfills and sites with groundwater contamination Landfill cap maintenance required – LAC 33: Part VII Solid Waste regulations Groundwater monitoring discontinued; UU/UE not attained

Land Use Controls Implementation Plan In development by Barksdale RPM Will be similar to existing LUCIP for MMRP sites

Administrative Controls No UXO warning signs

Achieve Landfill Cap replacement for Landfill No. 2 Performed in compliance with LAC 33: Part VII

Response Complete with LTM for Six Sites Remedial Investigation completed Draft Final Report submitted to LDEQ; waiting for comments

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DP020 POL Bulk Fuel Storage/ Landfill No. 1

First base landfill – 1930s through 1940s Metals contamination identified in gw GW monitoring conducted through 2008 LDEQ approved termination in 2009 Landfill cap repairs

(subsidence) for small area at northern end 2005

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LDEQ requirements – annual cap inspection, reporting and repairs if needed

Inspection performed July

Performance Objective: LTM

DP020 POL Bulk Fuel Storage/ Landfill No. 1

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DP021 POL Pumphouses 1-9

Located along east edge of parking apron Six 50,000 gallon jet fuel

USTs at each pump house GW monitoring conducted through 2008 LDEQ approved gw monitoring termination in

Pumphouses demolished & USTs removed over time

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LDEQ September 2013 NFA approval – restrictions on removing soils from site, no new construction w/o further evaluation

LUCIP under development for future land use planning Administrative LUCs

Performance Objective: LTM

DP021 POL Pumphouses 1-9

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LF003 Landfill No. 2

Base landfill – 1940s – 1960s GW monitoring 1990-2009 LDEQ approved termination of gw monitoring August 2009

Landfill cap repairs performed in 2002

Damage continues to occur due to tree growth over cap

LDEQ requested repairs in review of landfill inspection report

I n t e g r i t y - S e r v i c e - E x c e l l e n c e 13 cap inspection, reporting and repairs if needed

Project to repair security fence and some parts of cap awarded March 2019

Inspection - July 2019 Performance Objective:

Achieve Landfill Cap Replacement

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Barksdale Natural Resources section directed tree removal over most of landfill cap

Majority of tree debris removed – smaller limbs, stumps and other debris left behind

Some areas will still require clearance under ORC before cap replacement

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LF003 Landfill No. 3

Base landfill – 1960s - 1978 GW monitoring 1990-2017 LDEQ approved termination of gw monitoring 2017

Landfill cap replacement to correct subsidence issues and water ponding performed in 2000

Surface water runoff caused erosion damage to west side of cap

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Projects to repair erosion damage performed in 2001, 2010 & 2014

LDEQ requirements – annual cap inspection, reporting and repairs if needed

Project to repair security fence and some parts of cap awarded March 2019

Inspection - July 2019

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LF004 Landfill No. 4

Base landfill – 1978 - 1989 GW monitoring conducted through 1991 LDEQ approved termination of gw monitoring in August 1991

Landfill cap replacement completed in 2003;

regraded due to subsidence

Riprap installed along east side to control runoff to Musselshell Bayou

I n t e g r i t y - S e r v i c e - E x c e l l e n c e 19 cap inspection, reporting and repairs if needed

Location adjacent to new visitor center/security gate will change access

Inspection - July 2019

LF004 Landfill No. 4

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LF034 Weapons Range Burn Kettle

UXO Burn Kettle used at Claiborne Bombing Range from 1970s to 1991 RI conducted in 1994 found TPH and metals soil contamination

LDEQ issued Basis of Decision in March 2001

Contaminated soil cannot leave site

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LDEQ requirements – LUCs Inspection – planned for

January 2020

LF034 Weapons Range Burn Kettle

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SS049 Aircraft Parking Area

Former USTs for Military Service Station & avgas fueling site; located along edge of parking apron GW & soil contamination primarily TPH-GRO Groundwater LTM LDEQ approved RECAP report April 2012

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LDEQ December 2013 NFA approval – restrictions on removing soils from site, no new construction w/o further evaluation

LUCIP under development for future land use planning Administrative LUCs

SS049 Aircraft Parking Area

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ST032 AAFES Gas Station Bldg 5251

Located near lodging facilities BTEX contamination in soil and groundwater Soil removed source zone

Groundwater LTM with bioremediation 2000-2003 IAS-SVE groundwater treatment system operated

2004-2007; LTM 2008-2009

LDEQ approved RECAP evaluation 2010

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LDEQ NFA approval – restrictions on removing soils from site, no new construction w/o further evaluation

LUCIP under development for future land use planning Administrative LUCs

Performance Objective: SC

ST032 AAFES Gas Station Bldg 5251

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TU502 Building 7251 USTs

Former vehicle maintenance shop; 5 USTs removed by 1990; currently CE Readiness/Emergency Mgmt office PA/SI completed November 2015 RI identified soil and groundwater contamination exceeding LDEQ screening levels Soil: PAHs Groundwater: TPH, VOCs and PAHs

Office space located in industrial area Revised Draft Final RI Report under LDEQ review Performance Objective: RC and LTM as required

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TU502 Building 7251 USTs

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TU503 Building 7835 USTs

Former communications receiver site; 3 USTs removed by 1990; currently waterfowl winter nesting area PA/SI completed November 2015 RI identified soil and groundwater contamination exceeding LDEQ screening levels Soil: VOCs and PAHs Groundwater: TPH

Located on east reservation of base in natural resources management area

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TU503 Building 7835 USTs

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TU505 Building 6827 UST

Former engine maintenance shop; 1 UST removed in 1990; currently aircraft maintenance hangar/office space PA/SI completed November 2015; questions about whether samples collected in right location RI soil and groundwater samples were below LDEQ screening levels for all constituents Located in industrial area near airfield road; aircraft maintence operations

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TU505 Building 6827 UST

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TU509 Building 5747 UST

Former UST location associated with Gas Station; 1 UST removed in 1991; currently parking lot PA/SI completed November 2015 RI identified soil and groundwater contamination exceeding LDEQ screening levels Soil: PAHs Groundwater: TPH and PAHs

Located in industrial area between maintenance hangars and office space

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TU509 Building 5747 UST

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TU516 Building 4143 UST

Former Auto Hobby Shop; 1 UST removed in 1990;

currently open space – buildings demolished PA/SI completed November 2015 RI identified soil and groundwater contamination exceeding LDEQ screening levels Soil: Metals Groundwater: TPH, VOCs and metals

Located in industrial area along airfield road; close to installation lodging facilities

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TU516 Building 4143 UST

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TU521 Building 6227 USTs

Former Military Service Station; 18 USTs removed in 1968; current aircraft operations/maintenance PA/SI completed November 2015 RI identified soil and groundwater contamination exceeding LDEQ screening levels Soil: VOCs Groundwater: TPH, VOCs and metals

Located in industrial area along airfield road; close to installation lodging facilities

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TU521 Building 6227 USTs

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Barksdale MMRP Sites Status Fourteen Sites with Long Term Management

LUC Implementation Plan developed for MMRP sites UXO warning signs and flyers Variety of administrative controls also implemented

Proposed Plan in development for XU936 LTM preferred remedy in Final Feasibility Study

Achieve Site Closeout for TS935 Proposed plan in development

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TS935 North Gate Skeet Range

Former 10-acre skeet range near Bossier Gate 1930s – early 50s Currently museum, static aircraft display and airfield

Mack’s Bayou to west

RI identified contamination exceeding LDEQ screening levels Soil: PAHs and lead Groundwater: further investigation of PAHs needed

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TS935 North Gate Skeet Range

Soil Excavation recommended Final FS submitted to LDEQ;

Proposed Plan in development Performance Objective: SC

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XU936 Flightline Ammo Dump

Former 20-acre munitions storage area Ammo storage and

MD disposal Currently fuels operations & aircraft parking apron

Adjacent to DP020

RI did not identify MC contamination at site Subsurface geophysical anomalies detected Difficult to perform anomaly investigation due to highly developed nature of area

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XU936 Flightline Ammo Dump

LUCs for subsurface MEC recommended

Final FS submitted to LDEQ;

Proposed Plan in development

Performance Objective: RC

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MU055 - Remainder of East Reservation

Site was 9,200 acres buffer/training area Size reduced following investigations CSE Phase II recommended

449 acres move to RI 51 acres recommended for

Long Term Management for subsurface MEC

Surface clearance NTCRA MEC/MD removal in high usage areas Land Use Controls implemented

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MU055 - Remainder of East Reservation

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs Total of 8 large and 74 small signs Damage caused by hunters, construction, nature Administrative LUCs

Designed to provide information for future land use/planning

UXO support required for construction

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MU056 – Western Bomb Target

Site was 2,800 acres aerial bombardment range Size reduced following CSE

Phase II & RI Reduced to 1,132 then 378

Surface & Subsurface Clearance NTCRA

MEC/MD removal in high usage areas

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Surface and Subsurface Clearance 100% Surface Clearance for 163 acres; Subsurface – 8 acres

Statistical Sampling Surface Clearance – 215 acres Natural Resources Management, hunting, garden plots

LUCs implemented – physical and administrative UXO warning signs – 4 large billboard type, 92 smaller

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East Reservation Ranges

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XU559 – Flat River South Range

202 acre air-to-ground bombing range Utilized 1930s – 1940s

SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in 41-acre high usage areas

Land Use Controls implemented

Natural Resources usage;

adjacent to Weapons Storage Area

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XU559 – Flat River South Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs Total of 1 large and 44 small signs Periodic brush clearance required around signs to improve visibility Administrative LUCs

Designed to provide information for

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XU560 – Flat River South Range

152 acre air-to-ground bombing range Utilized 1930s – 1940s

SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in 12-acre high usage areas near developed areas and roads

Land Use Controls implemented

Adjacent to active skeet range, EOD office, and construction for new gate

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XU560 – Flat River South Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs Total of 72 small signs Several signs lost to gate construction Periodic brush clearance required around signs to improve visibility Administrative LUCs

Designed to provide information for

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XU562 – Flag Lake Range XU562a – Horse Stables Area

356 acre air-to-ground bombing range Utilized 1930s – 1940s

SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in high usage areas near developed areas

100% clearance at XU562a Land Use Controls implemented Adjacent to Flag Lake &

Liberty Heights Housing Area

Base hiking trail starts near Flag Lake

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XU562 – Flag Lake Range XU562a – Horse Stables Area

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 28 small & 5 large signs – XU562 2 small warning signs – XU562a Periodic brush clearance required around signs to improve visibility Administrative LUCs

Designed to provide information for

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XU562c – Flag Lake Water Range

517 acre air-to-ground bombing range Utilized 1930s – 1940s Target floated in lake

SI completed 2005 RI completed 2011

No surface or subsurface clearance

Evidence of possible underwater MEC/MD

Land Use Controls implemented

Popular area for fishing, hiking and hunting

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XU562c – Flag Lake Water Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 7 small warning signs installed near the boat launch and access points around lake

Periodic brush clearance required around signs to improve visibility

Administrative LUCs Designed to provide information for

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XU562d – Flag Lake Range Housing Area

Former Horse Stable Area near XU562 100% Surface/subsurface

Clearance performed in 2008-2009

Housing development built following clearance

MEC/MD located in various areas

Burial pit located in one section of XU562d

LUCs recommended UXO support for future construction Areas adjacent to roads

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XU562d – Flag Lake Range Housing Area

Site not included in MMRP LUC Implementation Plan Added to ERP recently;

administrative LUCs similar to other MMRP sites being developed

Concerns are for subsurface MEC

– not surface

Annual LUC Inspection & Maintenance required

Administrative LUCs Designed to provide information for

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XU563 – Fifi Bayou Range

388 acre air-to-ground bombing range Utilized 1930s – 1940s

SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in 21 acres in high usage areas, mostly along trails

Popular area for recreation;

base hiking trail

Timber leases in area

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XU563 – Fifi Bayou Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 22 small and 2 large warning signs installed along perimeter and near access roads through MRS

Periodic brush clearance required around signs to improve visibility

Administrative LUCs Designed to provide information for

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XU564 – Bluff Bridge Range

284 acre air-to-ground bombing range Utilized 1930s – 1940s

SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in 14 acres in high usage areas, mostly along trails

Popular area for recreation;

base hiking trail

Timber leases in area

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XU564 – Bluff Bridge Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 22 small and 2 large warning signs installed along perimeter and near access roads through MRS

Periodic brush clearance required around signs to improve visibility

Administrative LUCs Designed to provide information for

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XU565 – Harmon Lake Range

413 acre air-to-ground bombing range Utilized 1930s – 1940s Central Target Area

SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in 7 acres of high usage areas

Popular area for recreation just south of Harmon Lake

Oil/gas development common

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XU565 – Harmon Lake Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 37 small and 7 large warning signs installed around perimeter and near access roads through MRS

Periodic brush clearance required around signs to improve visibility

Administrative LUCs Designed to provide information for

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XU565a – Harmon Lake Range Target Area

118 acre air-to-ground bombing range Utilized 1930s – 1940s Part of original Harmon

Lake Range SI completed 2005 RI completed 2011

Surface clearance NTCRA

MEC/MD removal in 4 acres of high usage areas

Popular area for recreation close to Red Horse Lake

Oil/gas development; timber leases common

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XU565a – Harmon Lake Range Target Area

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 37 small and 7 large warning signs installed around perimeter and near access roads through MRS

Periodic brush clearance required around signs to improve visibility

Administrative LUCs Designed to provide information for

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XU643 – Red Chute Bayou Range

127 acre air-to-ground bombing range Utilized 1930s – 1940s

SI completed 2005 RI completed 2011

Surface clearance NTCRA

100% surface clearance over 88 acres

High density target area Popular area for recreation Location of new EOD

OB/OD Unit

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XU643 – Red Chute Bayou Range

Land Use Controls include administrative/physical Annual LUC Inspection &

Maintenance Replace damaged signs

UXO Warning Signs 18 small signs installed around perimeter except where EOD Range exclusion area present

Periodic brush clearance required around signs to improve visibility

Administrative LUCs Designed to provide information for

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Site Visits – 1:30 PM

Depart from Building 4845 parking lot DP020 POL Bulk Fuel Storage/Landfill #1 SS049 Aircraft Parking Apron Fuels Area ST032 AAFES Gas Station Building 5251 TU521 Building 6227 USTs TS935 North Gate Skeet Range LF003 Landfills No. 2 and No.3 MU056 Western Bomb Target XU643 Red Chute Bayou Range XU560 Musselshell Bayou Range MU055 Remainder of East Reservation

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Comments/Questions

DP021 POL Pumphouses 1-9

LF003 Landfill No. 2

LF003 Landfill No. 3

LF004 Landfill No. 4

LF034 Weapons Range Burn Kettle

SS049 Aircraft Parking Area

ST032 AAFES Gas Station Bldg 5251