|
SWMU/SA |
Name |
CERCLA Cleanup Work |
Status Under CERCLA a |
|
SWMU 4 |
South Davis Road Landfill |
Placed soil cover over landfill in 1998. |
Institutional controls selected in OU A ROD. |
|
SWMU 7 |
Andrew Lake Drum Disposal Area 2 |
Removed approximately 38 drums and contaminated soil in 1994. |
NFA selected in the OU A ROD. |
|
SWMU 9 |
Black Powder Club |
Recreational shooting; surface dump for metal (removed). |
NFA selected in the OU A ROD. |
|
SWMU 11 |
Palisades Landfill |
Remedial action completed by capping landfill, recontouring, and revegetating the site in 1996. |
Institutional controls implemented under interim ROD. |
|
SWMU 12 |
Quartermaster Road Debris Disposal Area |
Debris removed. |
NFA under CERCLA selected in OU A ROD. |
|
SWMU 13 |
Metals Landfill |
Remedial action completed by capping landfill, recontouring, and revegetating the site in 1996. |
Institutional controls implemented under interim ROD. |
|
SWMU 15 |
Future Jobs/DRMO (Former Hazardous Waste Storage) |
Removed PCB-contaminated soil to stockpile at SWMU 16A in 1992. |
Institutional controls under CERCLA selected in OU A ROD. |
|
SWMU 16 |
Former Firefighting Training Area |
An interim remedial action removed and treated burn pit soils and disposed of PCB-contaminated soil off island. |
Institutional controls selected in the OU A ROD. |
|
SWMU 16A |
PCB Stockpile Area |
A limited soil removal action in 1996 included removal of a stockpile of PCB-laden soil from one of the paved areas and removal of surface soils in the area where the highest PCB concentrations were detected. Stockpiled soil that contained PCBs at concentrations below 50 mg/kg were transported to SWMU 67 (see below) and spread over the PCB spill site there. Stockpiled soil that contained PCBs at concentrations exceeding 50 mg/kg was shipped off island in 1997. |
Institutional controls selected in the OU A ROD. |
|
SWMU 17 |
Power Plant 3 Area |
This site was determined to pose excessive risk to ecological receptors due to the presence of total inorganics, semivolatile organics, and PCBs in surface waters and sediments of a waste oil pond. The waste oil pond and a retention pond at the site were drained and contaminated sediment removed in 1999. Confirmational sampling was conducted to ensure that remaining soils meet the cleanup level of 1 mg/kg of PCBs. Excavated sediments were treated by low temperature thermal desorption to reduce concentrations of petroleum. Treated sediments are suitable for use as daily cover at Roberts Landfill. |
Source control and institutional controls selected in OU A ROD under CERCLA. |
|
SWMU 18 |
South Sector Drum Disposal Area |
Landfill was closed under Alaska DEC regulations in 1998. |
Institutional controls selected in OU A ROD. |
|
SWMU 19 |
Quarry Metal Disposal Area |
Landfill was closed under Alaska DEC regulations in 1998. |
Institutional controls selected in OU A ROD. |
|
SWMU 20 |
White Alice/Trout Creek Disposal Area |
Approximately 100 55-gallon drums and about 7 cubic yards of soils containing PCBs were removed. |
Institutional controls selected in OU A ROD. |
|
SWMU 21A |
White Alice Upper Quarry |
The site was a quarry and the location where drums of PCB-containing oil were disposed of. Approximately 780 cubic yards of PCB-contaminated soil was removed to the stockpile at SWMU 16A in 1992. A 20-mil liner and soil cover were placed over the areas of residual PCBs (concentrations less than 2 mg/kg). |
Institutional controls selected in OU A ROD. |
|
SWMU 21B |
White Alice Lower Quarry |
Drum and debris site. Removal action completed in 1993. |
NFA selected in OU A ROD. |
|
SWMU 23 |
Heart Lake Drum Disposal Area |
Drums and tanks removed in 1994. |
Institutional controls selected in OU A ROD. |
|
SWMU 24 |
Hazardous Waste Container Storage Facility |
Removed waste containers in 1995 (estimated). |
NFA selected in OU A ROD. |
|
SWMU 25 |
Roberts Landfill |
Landfill closure being completed under Alaska DEC solid waste regulations (pending). |
Institutional controls selected in OU A ROD. |
|
SWMU 26 |
Mitt Lake Drum Disposal Area |
Drums removed from concrete slab between 1980 and 1982. |
NFA selected in OU A ROD. |
|
SWMU 27 |
Lake Leone Drum Disposal Area |
Removed drums in 1998 and covered sediment in 1997. |
NFA selected in OU A ROD. |
|
SWMU 28 |
Lake Betty Drum Disposal Area |
Drums of bleach and debris removed in 1994. |
NFA selected in OU A ROD. |
|
SWMU 29 |
Finger Bay Landfill |
In 1996, 5-gallon drums containing lime removed from stream. |
Institutional controls selected in OU A ROD. |
|
SWMU 43 |
AIMD Acid Battery Storage Area |
Batteries neutralized in 1991; since removed. |
NFA selected in OU A ROD. |
|
SWMU 51 |
NSGA Transportation Building 10354 Waste Storage Area |
Open/cracked batteries removed 1992-93. |
NFA selected in OU A ROD. |
|
SWMUs 52, 53, 59 |
Former Loran Station (including 3 USTs), Loran Paint Workshop Building, Loran Boiler, and Barracks |
The site includes three former UST locations, a paint workshop, boiler, and barracks. Potentially hazardous debris including electrical equipment, PCB transformers, chemical containers, and paint cans were removed from abandoned buildings in 1991. |
Institutional controls selected in OU A ROD. |
|
SWMU 67 |
White Alice PCB Spill Site |
A PCB spill occurred in 1982. Sampling conducted in 1996 determined the boundary of the area with contamination exceeding 25 mg/kg. This 1-acre area was covered in 1997 with a multi-layered cap that included an impermeable geotextile membrane. Soils remaining at SWMU 67 have PCB concentrations below 25 mg/kg. |
Institutional controls selected in OU A ROD. |
|
SWMU 69 |
Ski Lodge Waste Pile |
Debris-, rubble-, and petroleum-affected soils removed in 1994. |
NFA selected in OU A ROD. |
|
SWMU 70 |
Davis Road Asphalt Drums |
Drums removed in 1991 (estimated). |
NFA selected in OU A ROD. |
|
SWMU 71 |
NSGA Fueling Facility |
Drums of linseed oil removed. |
NFA selected in OU A ROD. |
|
SWMU 72 |
NSGA Transportation Building 10354 |
Batteries and debris removed. |
NFA selected in OU A ROD. |
|
SWMU 74 |
Old Batch Facility |
Removed surface soil and placed cover soil in 1998. |
NFA selected under SAERA in OU A ROD. |
|
SA 90 |
Husky Road Landfill |
Construction debris temporarily stored here, then moved to Metals Landfill. |
NFA selected in OU A ROD. |
|
SA 95 |
Transformer Disposal Area |
Transformers were removed in the early 1990s; limited soil removal was completed in 1995. |
NFA selected in OU A ROD. |
|
-- |
South Sweeper Creek |
Sediments and fish tissue from this site, a receiving water body, were determined to pose excessive risk to ecological receptors, based on levels of PCBs and total inorganics. Sediment removal was completed in 1999. |
Sediment removal and institutional controls (the issuance of fish advisories) were selected in the OU A ROD. |