EPA Superfund Site

FORT WAINWRIGHT

AK | EPA ID AK6210022426

About this site’s exposure pathways: As of June 2025, the Fort Wainwright Army Base Superfund site is considered “Insufficient Data to make a Human Exposure evaluation” (HEID) because of on-going investigations at multiple newly identified sites and evaluation of the vapor intrusion pathway at established Operable Units. EPA uses this Human Exposure status when there is a lack of evidence to suggest that actual or reasonably anticipated human exposures are occurring, and that those exposures are above acceptable risk-based levels. The planned activities are to collect sufficient information to evaluate contaminants(s) under remedial investigations at sites FTWW-026 Pesticide Storage Bldg 1599, FTWW-118 North Pole Sinkhole, CC-FTWW-118 DRMO drum site, FTWW-121 TCE near Bldg 3007, CC-FTWW-105 336B Barracks, CC-FTWW-109 Bldg 1054, CC-FTWW-110 Bldg 3014, CC-FTWW-111 Montgomery Road Extension, FTWW-063 North Refueling, FTWW-127 Bldg 3030 S Loading Dock, and numerous sites with PFAS. Land use controls (LUCs) prohibit soil disturbance without a dig permit approved by Army environmental staff. Groundwater is used as a drinking water source and installation drinking water wells are tested quarterly under requirements of the Safe Drinking Water Act. Potential for off post migration of PFAS and presence of private drinking water wells is not yet determined. EPA currently anticipates that there will be sufficient data to make a Human Exposure evaluation by 2030 due to the number of sites and types of contaminants under investigation.