Superfund Record of Decision (EPA Region 10): Fort Richardson (USARMY), Operable Units A and B, Anchorage, AK, September 15, 1997
Technical Report
·
OSTI ID:673796
A remedy was chosen from many alternatives as the best means of addressing contaminated soil and groundwater at OU-B. The major components of the preferred remedy for OU-B are: high-vacuum extraction (HVE) to remove contaminated vapors and groundwater from the ``hot spot.`` The hot spot is defined as the subsurface area containing greater than 1.0 milligrams per liter of 1,1,2,2-tetrachloroethane in groundwater and/or free-phase solvents; an air stripping system to treat extracted groundwater to meet State of Alaska and federal maximum contaminant levels (MCLs) before being reinjected into the deep aquifer; institutional controls that will include restrictions on groundwater well installations, site access restrictions, and maintenance of fencing until state and federal MCLs for drinking water are met; natural attenuation of groundwater contamination in areas outside the hot spot; and long-term monitoring to assess whether groundwater contamination is approaching Eagle River and to ensure that contamination levels in the groundwater are decreasing through natural attenuation.
- Research Organization:
- Environmental Protection Agency, Office of Emergency and Remedial Response, Washington, DC (United States)
- OSTI ID:
- 673796
- Report Number(s):
- PB--97-964614/XAB; EPA--541/R-97/202
- Country of Publication:
- United States
- Language:
- English
Similar Records
Superfund Record of Decision (EPA Region 10): Fort Wainwright, Operable Unit 2, Fairbanks North Star Borough, AK, March 31, 1997
Superfund record of decision (EPA region 10): Fort Wainwright, Operable Unit 4, Fairbanks-North Star Borough, Fairbanks, AK, September 24, 1996
Superfund Record of Decision (EPA Region 10): Elmendorf Air Force Base, Operable Unit 6 and Source Area SS 19, Greater Anchorage Borough, AK, December 4, 1996
Technical Report
·
Fri Oct 31 23:00:00 EST 1997
·
OSTI ID:673791
Superfund record of decision (EPA region 10): Fort Wainwright, Operable Unit 4, Fairbanks-North Star Borough, Fairbanks, AK, September 24, 1996
Technical Report
·
Fri Feb 28 23:00:00 EST 1997
·
OSTI ID:464273
Superfund Record of Decision (EPA Region 10): Elmendorf Air Force Base, Operable Unit 6 and Source Area SS 19, Greater Anchorage Borough, AK, December 4, 1996
Technical Report
·
Fri Oct 31 23:00:00 EST 1997
·
OSTI ID:673789