B.07.01 ORC Virtual Site Visit Draft Final 25 Feb 20.pptx
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Joint Base Elmendorf-Richardson Environmental Restoration Program
Ellen Godden
AFCEC/CZOP
Feb 2020
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
ORC Site Visit
Overview JBER Restoration Staff JBER Installation Overview JBER-Elmendorf Site Status Overview JBER-Richardson Site Status Overview
JBER Restoration Staff
| Ellen Godden, Team Lead | 384-1824 | elizabeth.godden.1@us.af.mil |
| Cynthia Tomlinson, RPM | 384-2972 | cynthia.tomlinson@us.af.mil |
| Donna Baumler, RPM | 384-1835 | donna.baumler@us.af.mil |
| Donald Aide, RPM | 384-2984 | donald.aide.2@us.af.mil |
| William Mangini, RPM | 384-2318 | william.mangini@us.af.mil |
Installation Overview
JBER
JBER Facts and figures 673 ABW – 5500 military and civilian personnel Total acreage – 74,091 acres Supports 3 Air Force total-force wings, two Army brigades, 75 associate and tenant units Challenges JBER operates under two separate Federal Facility Agreements (FFA) Emerging contaminants
Installation Overview JBER-Elmendorf
Military operations have been conducted at Elmendorf AFB (formerly Fort Richardson, formerly Elmendorf Field) since 1940. The base was added to the National Priority List in 1990. Elmendorf’s FFA with the Environmental Protection Agency (USEPA) and Alaska Department of Environmental Conservation (ADEC) was signed in 1991.
52 JBER-Elmendorf sites included in ORC:
20 Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) sites 31 State Mandate sites 1 Military Munitions Response Program site CERCLA sites are managed under the FFA and State sites are managed in accordance with ADEC regulations The last Five-Year Review was completed in 2020 and included only CERCLA sites The Information Repository is maintained at Alaska Resources Library and Information Services (ARLIS) at the University of Alaska, Anchorage; the Administrative Record is available at http://afcec.publicadmin-record.us.af.mil
Regulatory Agreements JBER-Elmendorf
Federal Facility Agreement, Elmendorf AFB, Sep 1991 State-Elmendorf Restoration Agreement, Oct 1992 (rescinded in 2002) OU1 Record of Decision, Sep 1994 OU2 Record of Decision, Mar 1995 OU3 Record of Decision, Jan 1997 OU4 Record of Decision, Sep 1995 OU5 Record of Decision, Feb 1995 OU6 and Source Area SS19 Record of Decision, Jan 1997 DP98 Record of Decision, May 2004
JBER-Elmendorf Sites
28 Remedial Action – Operations/Long Term Monitoring Sites Access/Security Issues Require airfield access
CG527, CG536, CG539, SD025, SO507, SO510, SO549, SS522, ST408 & TU107
LF059 & ST037 require permit from Alaska Railroad Corporation and prior notice before conducting work No Access/Security Issues CG509, CG529, CG530, CG543, CG551, CG702, SO501, SO508, SO544, SO547, SS418, ST032, ST036, ST048, ST068, & TS003
Access/Security Issues: None
Site History: Barracks were formerly located in the eastern portion of the site, and were previously demolished and left in place beneath the ground surface.
RPM: Ellen Godden
Performance Objective: Remedial Investigation/Feasibility Study (RI/FS)
Issues/Challenges:
● Extent of groundwater contamination needs delineation.
● Hg source not known.
Site: CG111 State Site (Johnson Avenue Plume)
Current Site Phase: Remedial Investigation (RI)
Contaminants of Concern: Mercury (Hg), Gasoline Range Organics (GRO) and Diesel Range Organics (DRO)
Selected Remedy: N/A due to phase
Land Use Controls: N/A due to phase
Site History: Fuel contamination related to underground storage tanks (USTs) and a former fuel loading dock south of the Jet Engine Shop (Building 8459)
Performance Objective: RI/FS
Issues/Challenges: The main soil source area (defined as the three-dimensional soil volume with GRO concentrations greater than 140 mg/kg) begins at approximately 25 feet below ground surface (bgs), extends vertically to approximately 35 feet bgs, and covers an area of approximately 1.9 acres (approximately 830 feet long by 100 feet wide) for an approximate volume of 830,000 cubic feet, or 30,700 cubic yards.
Site: CG112 (Wewak) State Site
Current Site Phase: Site Investigation (SI)
Contaminants of Concern: GRO, RRO, 1,1,2,2-tetrachloroethane, 1,2,4-trimethylbenzene, 1-methylnaphthalene, ethylbenzene, naphthalene, lead, and trichloroethylene (TCE)
Site History: The highest DRO concentration at CG114-SB01 was in the surface, between 0 and 5 feet bgs at 19,000 milligrams per kilogram (mg/kg). Concentrations of DRO in the remainder of the boring were below the screening level.
Performance Objective: Site Closeout (SC)
Issues/Challenges: DRO contamination does not cover a large area. The horizontal and vertical extent of DRO in soil has been delineated. The soil source area (defined as the three dimensional soil volume with DRO concentrations greater than 1,025 mg/kg) begins at approximately ground surface (0 feet bgs), extends vertically to approximately 5 feet bgs, and covers an area approximately 22 by 30 feet (for an approximate volume of 3,300 cubic feet, or 122 cubic yards (cy)).
Site: CG114 (22nd Street) State Site
Current Site Phase: SI
Contaminants of Concern: DRO
Access/Security Issues:
| ● | Gated access |
| ● | Roads require winter plowing |
Site History:
| ● | NE portion of OU1 landfill consisting of 38.7 acres |
| ● | Post-closure groundwater and methane monitoring since 2004 |
RPM: Donald Aide
Performance Objective: Remedy in Place (RIP)
| ● | Methane migration impacting volatile organic compound (VOC) |
| ● | VOC migration to groundwater outside landfill boundary |
Site: CG703 CERCLA Site (OU1 Northern Plume)
Current Site Phase: FS
Contaminants of Concern: TCE
| ● | Gated access |
| ● | Access roads require winter plowing |
Site History:
| ● | SW portion of OU1 landfill consisting of 12.7 acres |
| ● | Post-closure groundwater and methane monitoring since 2004 |
| ● | Location of 18 passive gas collection and control (GCCS) vents installed 2006 – 2011 |
Performance Objective: Record of Decision (ROD)
| ● | Methane migration outside landfill cell |
| ● | VOC migration to groundwater outside landfill boundary |
Site: CG704 CERCLA Site (OU1 Southern Plume)
Current Site Phase: Remedial Action-Operations/Long Term Management (RA-O & LTM)
Contaminants of Concern: TCE
Selected Remedy: RI
Land Use Controls: N/A
Access/Security Issues: Requires permit from Alaska Railroad Corporation and prior notice before conducting work
Site History: PCB found from illegal dumping.
Performance Objective: RIP
Issues/Challenges: A remediation effort conducted in November 2014 removed approximately 2.75 cy of contaminated soil; however, confirmation soil samples indicated that contaminants still remain on the site above ADEC cleanup levels.
Site: DA115 (PCB Soil Pile) CERCLA Site
Current Site Phase: SI
Contaminants of Concern: polychlorinated biphenyls (PCBs) & TCE
Land Use Controls: Site is on LF008, so no soil removal unless sampled.
Access/Security Issues: Requires airfield access
Site History: Drums discovered during tree removal in 2016
RPM: William Mangini
Performance Objective: RI/FS (Optional); site characterization is ongoing under an open task order
Issues/Challenges: Requires flight line training and access.
Site: DA119 State Site (Orphan Drum Site)
Current Site Phase: Site Characterization
Contaminants of Concern: N/A
Updated
Site History: Old drums of unknown nature discovered in 2016
Performance Objective: RI/FS (Optional); site characterization is ongoing under an open task order
Issues/Challenges: None Site: DA122 State Site (Six Mile Lake Orphan Drum Site)
Current Site Phase: Site Characterization
Contaminants of Concern: N/A
Updated
| Site: | DP098 | CERCLA Site |
| (TCE Contamination) |
Current Site Phase: RA-O
Contaminants of Concern: 1,1-dichloroethylene (1,1-DCE), cis-1,2-DCE, TCE, tetrachloroethylene (PCE) & vinyl chloride (VC) Selected Remedy: Selected source material removal, monitored natural attenuation (MNA) including a treatability study, and land use controls (LUC) Land Use Controls: Soil and groundwater restrictions
Performance Objective: Data Gap Study/RA-O
Issues/Challenges:
| ● | Multiple contaminants |
| ● | Soil temperature |
| ● | Variable permeability |
Access/Security Issues:
| ● | Site access & additional personnel clearance must be coordinated with 373rd Intelligence Squadron (IS) |
| ● | Equipment list must be approved by 373rd IS before being brought on site |
Site History:
● Located NW of buildings 18220 and 18224
● Source of contamination – leaking UST (fuel) and floor drains (solvents)
RPM: Donna Baumler
| Site: FT023 | CERCLA Site | |
| (Fire Training Area ) |
Current Site Phase: RA-O Contaminants of Concern: TCE, PCE, cis-1,2-DCE Selected Remedy: Bioventing and MNA Land Use Controls: Institutional controls on land and water use restrict access to contaminated groundwater
Access/Security Issues:
● Groundwater monitoring wells GW5A and OU4MW-11 are within restricted flightline access area Site History:
| ● | Drum storage area contained up to 1 hundred 55-gallon drums of contaminated waste oils, paint thinners, waste fuel, and waste solvents |
| ● | 1940s-1983 fire training was conducted in a separate bermed area |
| ● | 250 to 3000 gal of contaminated waste materials were spread on the ground and ignited for each training exercise |
PM: Donald Aide
Performance Objective: Supplemental RI/FS/RA-O
Issues/Challenges: Potential perfluorooctane sulfonate and perfluorooctanoic acid (PFOS/PFOA)
| Site: | LF002 | CERCLA Site |
| (Landfill 002) |
Current Site Phase: LTM Contaminants of Concern: 1,1,2,2-Tetrachloroethane, Lead Selected Remedy: Limited soil cover, long-term groundwater monitoring, and LUC Land Use Controls: Soil and groundwater restrictions. Site designated as a “restricted use area” allowing for recreational use and construction of unmanned facilities.
Site History:
| ● | 8-acre landfill located near the SW corner of Vandenberg Avenue and Provider Drive |
| ● | 1940-1942 used as a surface dump for hard fill, construction rubble, scrap metal and general refuse |
Performance Objective: Data Gap Study/LTM
Issues/Challenges: Former landfill
| Site: | LF003 | CERCLA Site |
| (Sanitary Landfill) |
Current Site Phase: RA-O
Contaminants of Concern: None
Selected Remedy: LUC
Land Use Controls: Soil and groundwater restrictions. Site designated as a “restricted use area” allowing for recreational use and construction of unmanned facilities.
Performance Objective: Data Gap Study/RA-O
Issues/Challenges: Former landfill
| ● | 15-acre landfill near the SW corner of Provider Drive and Wilkins Avenue |
| ● | 1943-1957 used for disposal of general refuse, construction rubble, spent small arms ammunition and small quantities of shop waste |
| ● | Some limited open burning occurred during the 1950s |
| Site: | LF004 | CERCLA Site |
| (Knik Arm Bluff Landfill) |
Current Site Phase: RA-O Contaminants of Concern: Benzene, ethylbenzene, toluene, methylene chloride, 1,2-dichloroethane Selected Remedy: Long-term groundwater monitoring, free product recovery, debris removal (once every 3 years), and LUC Land Use Controls: Soil and groundwater restrictions. Site designated as a “restricted use area” allowing for recreational use and construction of unmanned facilities.
Issues/Challenges: Potential access changes through the POA when the Snow Dump lease goes through (expected in Fall 2020)
● Access through locked gate, sign in/out required
● Gate must be locked while on site
● Coord w/Port of Anchorage (POA) & USAF Security Forces for access to lower bluff Site History:
| ● | Runs about 3000 ft along Knik Arm; about 600 ft wide |
| ● | Operated as surface dump 1945-1957 |
| ● | Cars, construction rubble, 55-gallon drums, and general refuse were disposed and much of the waste was burned in place |
| ● | In 2014, during the excavation and removal of an oil-water separator (OWS), DRO-contaminated soil was encountered. |
| ● | In 2020, a site characterization will begin. Field activities will include the collection of soil & groundwater samples analyzed for a full suite. A conceptual site model (CSM) will be developed and risk will be assessed. |
Performance Objective: RI/FS (Optional)
Issues/Challenges: Site Characterization Underway; not enough is known about contaminant concentrations and whether an RI will be necessary.
Site: OW118 State Site (Building 5374 Oil-Water Separator)
Current Site Phase: Site Inspection
Contaminants of Concern: DRO
| Site: | SD015 | CERCLA Site |
| (POL Sludge Disposal #2) |
Current Site Phase: RA-O Contaminants of Concern: Benzene and TCE Selected Remedy: Groundwater in the perched aquifer at SD15 was treated by high vacuum extraction (HVE) system and MNA Land Use Controls: Institutional controls on land and water use restrict access to contaminated groundwater. Installation of wells in the contaminated plume for residential, industrial, or agricultural use is prohibited
Access/Security Issues: Access through locked gate
| ● | Site consisted of three 30- by 50-ft concrete pads, and the area surrounding them |
| ● | Early 1970s to 1983 the pads were used for disposal of tank sludge and for weathering fuel filters and pads |
Performance Objective: Supplemental RI/FS
Issues/Challenges: Soil vapor extraction (SVE) system leaked fuel. Soil removal was accomplished, but it did not reach extent of contamination.
| Site: | SD029 | CERCLA Site |
| (Floor Drains in Building 16716) |
Current Site Phase: RA-O
Contaminants of Concern: TCE
Selected Remedy: MNA and LUCs for groundwater
Land Use Controls: Institutional controls on land and water use to restrict access to contaminated groundwater until cleanup levels have been achieved.
Access/Security Issues: Groundwater monitoring well IS6-01 is within restricted flightline access area
| ● | Building 16716 (Hangar 15) is between Taxiway F and Talley Way | |
| ● | Hangar was used for aircraft maintenance | |
| ● | Main source of contamination is fuel spills flowing into floor drains connected to dry wells |
RPM: Donald Aide
Performance Objective: Supplemental RI/FS
Issues/Challenges: One well plume; therefore, not well characterized.
| ● | Elevated contaminant concentrations identified in soil following the removal of a UST in 1994 |
| ● | Annual compliance monitoring of groundwater has been conducted since 2006 |
RPM: William Mangini
Performance Objective: ROD
Issues/Challenges:
| ● | Timeframe for natural attenuation |
| ● | TCE plume boundaries intermixed with adjacent site |
| Site: SO552 | State Site |
(ST402)
Current Site Phase: RI
Contaminants of Concern: GRO, DRO, TCE, VOCs, metals, polycyclic aromatic hydrocarbons (PAHs), PCBs, Selected Remedy: Source removal, MNA and LUC
Land Use Controls: Soil and groundwater restrictions
Will - updated
Access/Security Issues: Requires Flightline access
Site History: Site utilized TCE to clean weapons.
RPM: Donald Aide
Performance Objective: ROD
Issues/Challenges: Includes ex-situ SVE system that is located at LF007 Site: SS109 (F22 Weapons Release Shop) CERCLA Site
Current Site Phase: FS
Contaminants of Concern: TCE & PCE
Access/Security Issues: Site has restricted access. Coordination with Facility Security Manager required prior to any on site work
Site History: Building construction during 2008 uncovered contaminated soil
RPM: William Mangini
Performance Objective: RI/FS (Optional)
Issues/Challenges: Discovery of TCE, PCE, and chloroform in up-gradient well Site: SS116 State Site
(ALCOM)
Current Site Phase: SI
Contaminants of Concern: DRO
Will - Updated
| ● | UST and OWS removed in 2016 |
| ● | Current VI investigation underway as part of RI |
RPM: William Mangini
Performance Objective: ROD
Issues/Challenges: Large TCE ground water plume Site: SS117 CERCLA Site (AAFES Spill)
Current Site Phase: RI/FS
Contaminants of Concern: DRO, GRO, TCE
Land Use Controls: Groundwater LUC
Will – Not finished updating yet
Site History: Contamination found next to eagle cage while digging for work on utilities
Performance Objective: RI/FS (Optional)
Issues/Challenges: This site has the most utilities that I have ever seen on a site.
Site: SS124 (Bldg 10551 Trench) State Site
Current Site Phase: SI
Contaminants of Concern: GRO & DRO
| Site: | ST037 | CERCLA Site |
| (Diesel Fuel Line Leak) |
Current Site Phase: RA-O Contaminants of Concern: TCE and fuel (benzene, total aromatic hydrocarbons (TAH), total aqueous hydrocarbons (TAqH), sheen) Selected Remedy: Excavate fuel-contaminated soil; collect and treat fuel- and TCE-contaminated seep water in engineered and natural wetlands; MNA Land Use Controls: Use of shallow groundwater is prohibited
Performance Objective: Data Gap Study/RA-O
Issues/Challenges:
● Monitoring wells were designed to detect fuel; however, TCE is the only remaining COC
● Reductive dechlorination of TCE is limited
● Dilution & dispersion are the primary mechanisms by which TCE concentrations are being reduced
Access/Security Issues:
| ● | Property leased from Alaska Railroad Corp until 2026 |
| ● | Work requires permit from the Alaska Railroad because site within 100 ft of railroad tracks and coordination prior to work |
| ● | Some areas are overgrown and difficult to access |
| ● | Access through locked gate |
Site History:
| ● | Fuel contaminants associated with an on-site diesel-fuel line break between 1956 and 1958 |
| ● | Solvent contamination associated with upgradient source |
| Site: | ST036 | CERCLA Site |
| (UST Fuel Leak) |
Current Site Phase: RI
Contaminants of Concern: DRO, TCE
Selected Remedy: MNA
Land Use Controls: Use of shallow groundwater is prohibited
Performance Objective: RAO
Issues/Challenges: Monitoring wells were installed during limited field investigation (LFI) and designed to detect fuel. Recent studies show TCE detections.
Access/Security Issues: None
Site History:
| ● | Diesel fuel UST (Tank No. 250) removed |
| ● | Contamination associated with piping that connected UST to Building 27369 |
| ● | Solvent contamination delineated 2019 |
Will- I added the slide for ST036. If we don’t need it we can toss it.
| Site: | ST041 | CERCLA Site |
| (Four-Million Gallon Hill) |
Current Site Phase: RA-O Contaminants of Concern: Benzene, ethylbenzene, toluene, TAH, & TAqH Selected Remedy: Free product removal (shutdown), groundwater & surface water monitoring Land Use Controls: Soil and groundwater restrictions. Site designated as a “restricted use area” allowing for recreational use and construction of unmanned facilities.
● 4 – 1M gal USTs installed in 1942, taken out of service in 1991, & decommissioned in 1996.
● 60,000 gal aviation gasoline (AVGAS) spill in the mid-1960s
● 33,000 gal JP-4 spill in 1974
● A fuel (product) recovery & groundwater (gw) treatment system installed in 1993 & decommissioned in 1999 RPM: Donna Baumler
Issues/Challenges: Evaluate feasibility of implementing contingent remedy
Access/Security Issues: Airfield access required
Site History: 1999 ADEC requests USAF to conduct a release investigation at the location of the 300gal UST associated with an oil/water separator (OWS)
Performance Objective: ROD
| ● | Timeframe of natural attenuation of contaminants |
| ● | Limited historical data |
Site: TU091 State Site
(UST AFID 130-OU)
Current Site Phase: RI
Contaminants of Concern: DRO, chloroform, VOCs, semi-volatile organic compounds (SVOCs), and PCBs
Selected Remedy: MNA
Land Use Controls: Soil and groundwater restrictions
Will – Updated name
Installation Overview JBER-Richardson
Military operations have been conducted at JBER-Richardson (formerly Fort Richardson) since about 1950. The post was added to the NPL in 1994, and the FFA with USEPA and ADEC was signed in 1994.
23 JBER-Richardson sites included in ORC:
12 CERCLA sites 9 State sites 2 MMRP sites CERCLA sites are managed under the FFA, and State (2-party sites) are managed in accordance with Richardson/State agreements and ADEC regulations The last Five-Year Review was completed in 2019 and included CERCLA sites The Information Repository is maintained at ARLIS at the University of Alaska, Anchorage; the Administrative Record is available at http://afcec.publicadmin-record.us.af.mil
Regulatory Agreements JBER-Richardson
Federal Facility Agreement, Fort Richardson, Dec 1994 State-Richardson Environmental Restoration Agreement, Apr 1994 State-Richardson UST Compliance Agreement, Apr 1993 OUA and OUB Record of Decision, Sep 1997 OUC Record of Decision, Sep 1998 OUD Record of Decision, Sep 2000 OUE Record of Decision, Sep 2005 Eagle River Flats Settlement Agreement, Oct 2004
JBER-Richardson Sites
10 Remedial Action – Operations/Long Term Monitoring Sites Access/Security Issues Require mandatory check in/out with Range Control, mandatory range safety briefing (annually), restricted access, fenced with locked gate
SS041, TU103 & XE023
XU022 – also requires two-week prior coordination with Installation RPM and Range Control, 40-hr HAZWOPER certification and accompaniment by explosive ordnance disposal (EOD) technician Restricted access, fenced with locked gate
TU037 & TU102
No Access/Security Issues
FR001, FR002, TU064, & TU101
Performance Objective: ROD
Issues/Challenges:
● Remaining subsurface soil contamination prevents unrestricted use
● PFAS discovered during basewide SI
| Site: | AT029 | CERCLA Site |
| (Ruff Road Fire Training Area) |
Current Site Phase: RI/FS
Contaminants of Concern: DRO, TCE, naphthalene
Selected Remedy: Soil and groundwater LUCs
Land Use Controls: Excavation is restricted and use of groundwater at this site, for any reason, is prohibited
Access/Security Issues: None
Site History:
● The site consists of a former unlined fire training area used between the 1940s and 1980s
● 2018 Supplemental RI conducted to investigate VOCs, PFAS discovered but not fully characterized
Will- updated site history and Contaminants of Concern
Performance Objective: ROD
Issues/Challenges:
| ● | Determine groundwater cleanup technology that will be effective for AT035, TU117 and SS013 combined. |
| ● | Low-level TCE contamination throughout the site |
● Contamination discovered during construction of the Manuever-Enhanced Brigade (MEB) Complex in 2010
● Excavated/treated 3,000 cubic yards DRO-contaminated soil
| Site: | AT035 | CERCLA Site |
| (MEB Complex, COF FTR269) |
Current Site Phase: RI/FS
Contaminants of Concern: No CoCs have been selected yet; however, these are good candidates - DRO, TCE, PCB, carbon tetrachloride, chloroform
Land Use Controls: Excavation is restricted
Access/Security Issues:
| ● | Mandatory check in/out with Range Control |
| ● | Access through locked gate |
| ● | Perimeter partially fenced |
Site History:
| ● | Munitions disposal area active about 1950-1972 |
| ● | UXO left in place and area with potential UXO is fenced |
RPM: Donna Baumler
Performance Objective: ROD Amendment
(ROD-A)/RA-O
Issues/Challenges:
| ● | Timeframe for meeting RAOs (federal MCLs) through monitored natural attenuation estimated at 150 yrs | |
| ● | Complex geology and hydrogeology limits remedial options | |
| Site: | CG039 | CERCLA Site |
| (OUB / Poleline Road Disposal Area) |
Current Site Phase: RA-O
Contaminants of Concern: Chlorinated solvents, Unexploded ordnance (UXO)
Selected Remedy: Excavation, HVE with air stripping, Restrict access
Land Use Controls: Excavation is restricted and use of groundwater at this site, for any reason, is prohibited
Access/Security Issues: None
Site History:
| ● | The AVMA was used for field maintenance for armored vehicles (tanks) |
| ● | During the RI, PCE contamination in groundwater appeared to originate north of Bldg 726 (laundry & dry cleaning facility) |
Performance Objective: Supplemental RI/ROD-A/RA-O
| ● | Source has not been identified |
| ● | Timeframe for natural attenuation (ROD allows 30 years from 2005 to reach cleanup standards) |
| Site: | DA089 | CERCLA Site |
| (OUE / Armored Vehicle Maintenance Area) |
Current Site Phase: LTM
Contaminants of Concern: PCE
Selected Remedy: Natural attenuation, monitoring and LUCs
Land Use Controls: Installation or use of groundwater supply wells at the site is prohibited until the cleanup standards achieved throughout the groundwater plume.
Access/Security Issues: RV Lot is fenced and locked requiring code from Outdoor Recreation.
Site History:
● Aerial photographs from 1957 site may have supported previous debris disposal and consolidation.
● Preliminary Source Evaluation conducted in 2014 in response to contamination discovery during RV lot construction.
RPM: William Mangini
Performance Objective: ROD
Issues/Challenges:
| ● | Groundwater contamination not delineated |
| ● | PCE contamination not delineated |
| Site: | DA090 | CERCLA Site |
| (Recreation Vehicle Lot) |
Current Site Phase: RI/FS
Contaminants of Concern: TCE, PCBs, PAHs, PCE, VOCs, and chloroform
Selected Remedy: N/A
Land Use Controls: soil and groundwater LUCs
Will – updated the slide
Performance Objective: RI/FS
Issues/Challenges: None
Site: DA121 State Site (Power Pole Excavation)
Current Site Phase: Site Characterization
Contaminants of Concern: DRO, Pentachlorophenol
● Petroleum contamination was discovered during installation of power poles
● Site Characterization uncovered Pentachlorophenol in soil samples
. RPM: William Mangini
Performance Objective: ROD
Issues/Challenges: Remaining subsurface soil contamination prevents unrestricted use
| Site: | DP009 | State Site |
| (Dry Well – Building 986) |
Current Site Phase: RI/FS
Contaminants of Concern: GRO, DRO, VOCs
Selected Remedy: Soil LUC
Land Use Controls: Excavation is restricted
Access/Security Issues: None
Site History:
| ● | Dry well removed |
| ● | SVE system 1998-2003 |
| ● | Supplemental RI 2019 |
Performance Objective: ROD
Issues/Challenges:
| ● | Land use control required because PCB-contaminated soil (>10 mg/kg) left in place during removal action due to excavation depth and proximity to building foundation | |
| ● | RI/RA report | |
| ● | The proposed plan and ROD will be combined with AT035 and TU117. | |
| Site: | SS013 | CERCLA Site |
| (MP Barracks PCB Site) |
Current Site Phase: LTM
Contaminants of Concern: PCBs
Selected Remedy: Interim LUC; no remedy selected yet
Land Use Controls: Soil excavation is restricted by ADEC regulations
● PCB contamination discovered during 2007/2008 preconstruction investigations
● About 9800 cubic yards of PCB-contaminated soil was excavated and shipped off-site for disposal
● Construction complete but residual PCB contamination remains in place at greater than 10 mg/kg
Performance Objective: ROD
Issues/Challenges:
| ● | Remaining subsurface soil contamination prevents unrestricted use |
| ● | Carbon tetrachloride and chloroform are present in ground water from up-gradient sites. |
| Site: | SS019 | State Site |
| (Building 755) |
Current Site Phase: RI/FS
Contaminants of Concern: GRO, RRO, DRO
Selected Remedy: N/A due to site phase
Land Use Controls: Excavation is restricted
Access/Security Issues: None
Site History:
| ● | UST removed |
| ● | No Further Action (NFA) – ADEC 1998 |
| ● | RI Completed - 2019 |
Performance Objective: ROD-A/LTM
Issues/Challenges:
| ● | Remaining subsurface soil contamination prevents unrestricted use |
| ● | Solvent (TCE) in groundwater exceeds MCL |
| ● | PFAS detected during basewide site investigation |
| Site: | SS044 | CERCLA Site |
| (Building 35-752) |
Current Site Phase: LTM
Contaminants of Concern: PCB (soil) and TCE (groundwater)
Selected Remedy: Excavate and treat of contaminated soil, monitor groundwater every 5 years, LUCs
Land Use Controls: Soil excavation is restricted
Access/Security Issues: Building 35-752 vacant and fenced with locked gate
Site History: Building 35-752 is a former generator building for the adjacent high-frequency transmitter site at Building 35-750
Performance Objective: PP/ROD-A/Decision Document (DD) Amendment
Issues/Challenges:
● Remedy implemented but LUCs were not evaluated as a part of the original Feasibility Study
● Contamination left in place without LUCs
● PP/ROD-A/DD-A will establish and implement LUCs as a part of the selected remedy.
Site: SS047 CERCLA Site (Nike Site Summit)
Current Site Phase: Remedial Action-Construction
Contaminants of Concern: VOCs, SVOCs, PAHs, & metals
Selected Remedy: Excavation & Off-Site Disposal of CERCLA & petroleum contaminated soil.
Land Use Controls: None
Access/Security Issues:
● Access is controlled by Range Control
● Range training required annually
● Summer tours set by the Friends of Nike Site Summit Site History:
| ● | Nike Hercules missile site in operation, around the clock, from 1959-1979. |
| ● | In 1994, listed on the National Register of Historic Places |
Performance Objective: Supplemental RI/LTM
Issues/Challenges:
| ● | Open CERCLA site located at a barracks |
| ● | Contamination exceeds levels for unrestricted use |
| ● | Contamination may exceed ROD delineation so more sampling is required |
Access/Security Issues: None
Site History:
| ● | Detected during MILCON project – suspect source is spill during filling/application of the pesticide |
| ● | Up to 1.7 mg/kg dieldrin within 45-ft arc from corner of 6th & A Streets |
| ● | Capped with geotextile and a raised bed constructed over the top of the site |
| Site: | SS090 | CERCLA Site |
| (Barracks Construction Dieldrin Spill Site) |
Current Site Phase: LTM
Contaminants of Concern: Dieldrin
Selected Remedy: Soil LUC
Land Use Controls: Excavation is restricted
Access/Security Issues: None
Site History:
Former Building 772 was the original diesel-powered electrical generation facility Contamination discovered during construction activities for building 771 Vapor intrusion (VI) investigation underway
RPM: Ellen Godden
Performance Objective: ROD
Issues/Challenges: The nature and extent of contamination in soil related to TU117, and in soil gas and indoor air at the nine buildings evaluated in this SRI, have been well-defined. The extent of solvent contamination in groundwater at TU117 is not fully defined for all contaminants, and is comingled with contamination at AT035.
| Site: | TU117 | CERCLA Site |
| (FORMER BUILDING 772) |
Current Site Phase: RI/FS
Contaminants of Concern: TCE, carbon tetrachloride, PCE, PCBs
Land Use Controls: Excavation restrictions image2.png image3.emf image4.png image5.png image6.png image1.png
File details come from the government source that posted it. Updated .