Site Visit - Little Rock AFB Site Visit ORC PP.pptx
PPTX presentation 13 MB Posted
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- Optimized Remediation Contract (ORC) OK/AR Group Federal contract opportunity
- Solicitation number
- W912BV20R0002
About this file
This document provides details for an Optimized Remediation Contract opportunity for environmental remediation services at five Air Force installations in Oklahoma and Arkansas. The solicitation will be issued on November 19, 2019 via the SAM website for a ten-year, firm-fixed-price contract to conduct cleanup activities at 64 Installation Restoration Program and one Military Munitions Restoration Program site. Services include investigation, design, remedial action, construction, and optimization of restoration activities. Proposals are due on February 20, 2020 and contract award will follow utilizing best value tradeoff procedures. The opportunity is set aside for small businesses with less than 750 employees. The Army Corps of Engineers District Tulsa will administer the contract to complete cleanup objectives and comply with applicable laws and regulations at Air Force Plant 3 and Altus, Little Rock, Tinker, and Vance Air Force Bases.
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Text version
Virtual Site Tour Little Rock AFB Albert T. Aguilar Little Rock/Tinker AFB RPM 7 Jan 2020
Air Force Civil Engineer Center Battle Ready…Built Right!
Installation Background General Information Regulatory Authority/Requirements ORC Objectives Site-Specific Information
“Home of C-130 Combat Airlift” MISSION: Project and Sustain Agile Combat Location: Jacksonville, AR (Pulaski Co.) - 15 miles north of Little Rock, AR (state capital).
Size: 6,104 Acres (4th largest employer in AR)
Little Rock AFB Land Use
Regulatory Authority/Requirements Comprehensive Environmental Response, Compensation & Liability Act (CERCLA)
Resource Conservation and Recovery Act (RCRA)
Department of Environmental Quality (DEQ) – Consent Administrative Order (CAO) 12 Feb 00 (RCRA)
Little Rock has 55 IRP sites - 46 SC/NFA – 7 LUCs – 2 RA-O
List of Sites for Little Rock AFB
| Site ID | Site Name | DEQ Site ID |
| ST025 | Flight line Fuel Leak | AOC 03 |
| LF013 | Landfill No. 7 | SWMU 27 |
| LF007 | Landfill No. 1 | SWMU 21 |
| LF008 | Landfill No. 2 | SWMU 22 |
| LF010 | Landfill No. 4 | SWMU 24 |
| LF030 | Landfill EOD | AOC 30 |
| LF046 | Drum Burial Area | AOC 46 |
| DP051 | AOP Sludge Dump | AOC 51 |
| ST006 | Bulk Fuel Storage Tank Farm | SWMU 8 |
ST025 & LF013 currently ACTIVE sites being regulated under CAO through DEQ. All other sites (LF007&,LF008, LF010, LF030, LF046,. DP051, & ST006) have received NFA under CAO but have LUC restrictions.
Site ST025 - Little Rock AFB Site ID: ST025/AOC03 Flight line Fuel Leak
Description: Located on the west end of an active parking apron. ST025 = 7 acres
Background: ST-25 is a combination of sites on & off the apron with historical releases of jet fuel from hydrant system beneath the apron that formed a LNAPL plume on the top of the water table and associated smear zone related to groundwater level fluctuations over time at the west end of the apron.
Make the background very brief. Overflow to multiple slides as needed.
Site ST025 - Little Rock AFB Impacted Media: Soil and Groundwater contamination on/off apron COCs: TPH GRO/DRO, Benzene, Naphthalene Remedy Listed in ROD/DD – RA-O LUCs: No digging w/o review Air Force Performance Objective: RA-O
PFOS/PFOA: N/A
Access Issues: Active apron, taxiway, & infield. Requires flight line driver’s training & government escort with a restrictive area badge
Reporting: Annual LTM Report Every 3 years well repair/maintenance & reporting Sampling – Semi-Annual Sampling (May/Nov) VOC,TPH GRO & DRO (10 wells) & 2 surface water seepage areas sampled - Annually add MNA parameters (16 wells) If free product reaches 1.75 ft. in any downgradient well must complete contingency plan for recovery.
GOALS: Remediate GW to meet MCLs, Remediate off-apron/on-apron soil that allow for unrestricted land use
Site ST025 - Little Rock AFB May 2019
ST025 gauging event DEC 2019 after Surfactant Event 3 no free product was found in the wells.
Geology: Extremely heterogeneous Lithology – Fill, clay, silt, sand, weathered shale Hydrogeology: GW encountered at depths between 3 – 13 ft bgs --- GW flow North to Northwest—
Site ST025 - Little Rock AFB Cross Section A-A (East-West)
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
Site ST025 - Little Rock AFB Cross Section B-B (North-South)
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
Site LF013, Little Rock AFB Site ID: LF013 (SWMU 27) - Landfill No. 7
Description: Located on the southeastern portion of Little Rock AFB north of Vandenburg Blvd. LF013 = 19 acres
Background: LF013 is a former base landfill that was used from 1965 to 1969 for general base refuse. Open burning was conducted at LF013. A RCRA cap was installed in 1998. Post-closure care is required.
Site LF013, Little Rock AFB Impacted Media: Soil and Groundwater contamination COCs: TCE and daughter products Remedy Listed in ROD/DD / Permit: RA-O LUCs: Institutional Controls/No digging w/o review Air Force Performance Objective: LTM
PFOS/PFOA: N/A
Access Issues: Fenced area with gated locks.
Additional Requirements: After Oct 2018 LTM DEQ requested additional well be placed SW (downgradient) of well SD-10 between SD-4 & SD-17 to view extent of chlorinated ethene plume
REPORTING : Semi-Annual Inspections submitted to AFCEC - ANNUAL RA-O Report (AFCEC & DEQ) LTM Report (Every 5 years) AFCEC & DEQ GOAL: LTM – If TCE could be treated to 5 ug/L
Site LF013, Little Rock AFB
LF013: Oct 2019 remedial optimization includes GW Sampling every 5 years ( next being Oct 2023) requiring 2 affected wells and 5 up and down gradient wells with the 2019 request by DEQ of 1 additional well downgradient (TOTAL of 8 wells).
COPC: VOC’s only RA-O activities : Semi-Annual Inspections (Visual observation, checking perimeter fencing/signage (repair as needed) inspection erosion control system and subsidence monitoring to id areas of settling. Erosion control checked after any MAJOR storm event (approx. 4.75 in.) Mowing conducted annually (max 2 times per yr), annual soil testing, herbicide/pesticide applied as needed.
Site LF013, Little Rock AFB Oct 2018
Test Results from OCT 2018 sampling SD-10 – 301 ug/L (EPA MCL 5 ug/L) & DCE 166 ug/L (EPA MCL 5 ug/L)
LUC Sites - Little Rock AFB
Overview of 7 LUCs at Little Rock - All sites have rec’d NFA from DEQ but have restrictions of no digging w/o review.
REPORTS: Annual LUC Inspection Report for 7 sites & Update of LUC Implementation Plan as needed.
LF007, Little Rock AFB Site ID: LF007 SWMU 21/Landfill No. 1 Description: Located northeast of the airfield. The land is undeveloped and no other uses, other than hunting, have been reported for this site. Site = 12 acres Background: LF007 was operated as a landfill from 1955 – 1958 and was used for disposal of general base refuse. The site has a soil cover. After RFI/CMS the DEQ approved NFA w/ dig restrictions. LF007 is in LTM with annual LUC inspections.
RADD/LUCs: NFA w/dig restrictions Air Force Performance Objective: LTM
Site LF007, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
LF008, Little Rock AFB Site ID: LF008 SWMU 22/Landfill No. 2 Description: Located east of Marshall Rd. and west of LF010 within the EOD Range footprint. The land is undeveloped and no other uses, other than hunting, have been reported for this site. Site = 5 acres Background: LF008 was operated as a base landfill from 1955 – 1958. The waste was burned and covered. After RFI/CMS DEQ approved NFA w/dig restrictions. LF008 is in LTM with annual LUC inspections.
RADD/LUCs: NFA w/dig restrictions – annual LUC inspections
Site LF008, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
LF010, Little Rock AFB Site ID: LF010 SWMU 24/Landfill No. 4 Description: Located west of Marshall Rd. and north of Vandenberg Blvd. The land is undeveloped and no other uses, other than hunting, have been reported for this site. Site = 12 acres.
Background: LF007 was operated as a landfill from 1955 – 1958 and was used for disposal of general base refuse. The site consist of a former landfill with a soil cover.
Remedy In Feb 2007 RADD approval for P&A of wells and NFA w/dig restrictions. LF010 is in LTM with annual LUC inspections.
Site LF010, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
LF030, Little Rock AFB Site ID: LF030 AOC30/Landfill EOD Description: Located in the east-central portion of the base, northeast of the intersection of Marshall Avenue and North Lachmund Drive. Site is east of LF008 and is underneath the present EOD practice range. Site = 8 acres Background: LF030 showed landfilling and trenching activities that contain family housing waste from the mid-1960’s.
RADD/LUCs: NFA w/dig restrictions – annual LUC inspections
Site LF030, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
LF046, Little Rock AFB Site ID: LF046 AOC46/Drum Burial Area Description: Located in the north central portion of the base, south of First Street, in a wooded area east of Building 122. The land is undeveloped and no other uses, other than hunting, have been reported for this site. LF046 = 3 acres Background: LF046 shows landfilling and disposal practices of refuse and industrial waste. In 1997, three drums were observed in a ravine and removed.
RADD/LUCs: NFA w/dig restrictions – annual LUC inspections
Site LF046, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
ST006, Little Rock AFB Site ID: ST006 SWMU 08/Bulk Fuel Storage Tank Farm Description: ST006 Is located at the Petroleum, Oils, and Lubricants (POL) area east of Vandenberg Blvd. and north of Lachmund. The site consists of three large above ground storage tanks (ASTs) approx. containing 1.7 million gallon tanks, which serve as primary reservoir for jet fuel at Little Rock AFB. ST006 = 17 acres Background: ST006 has had spills during fuel handling operations since 1954 resulted in contamination. Prior to 1980, approx. 500 gallons of sludge from tank cleaning was spread within the tank area.
RADD/LUCs: NFA w/dig restrictions – annual LUC inspections
Site ST006, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
DP051, Little Rock AFB Site ID: DP051 AOC 51/AOP Sludge Dump Description: DP051 is located south of the airfield parking apron between Avenue B West and Avenue D West in the north-central section of the base. In 1955, Bldg. 250 was built on top of DP051. DP051 = 1 acre Background: DP051 was identified during historical aerial photographs (1949) as containing potentially contaminated material or sludge’s that were collected from various production lines of the Arkansas Ordnance Plan as a possible disposal site.
RADD/LUCs: NFA w/dig restrictions – annual LUC inspections
Site DP051, Little Rock AFB
Include photographs showing the site and any specific/unique characteristics (inside vaults, inside control rooms/panels, etc.). Can be multiple slides. Suggest showing landfills from all sides (definitely multiple pics).
Regulatory Review Times (Estimated) Documents only reviewed by DEQ Review Priorities/Time:
High complexity documents (annual report): 45-60 days Low complexity documents (work plans / field activity): 30 days Document content expectations will be reviewed by AFCEC and comments provided in draft prior to draft final being submitted to DEQ.
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