FORT RICHARDSON (USARMY)

As of July 2026, the Fort Richardson Army Base Superfund site is considered “Insufficient Data to make a Human Exposure evaluation” (HEID) because of on-going investigations at multiple newly identified PFAS sites and evaluation of the vapor intrusion pathway at established Operable Units. In 2010, the Air Force became responsible for administration of environmental programs at Fort Richardson. 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 OUE DA089, AT029 Ruff Road Fire Training Area, TU117 Headquarters Building, DA090 RV Parking Lots Drum Site, and 7 sites with PFAS. Land use controls (LUCs) prohibit soil disturbance without a dig permit approved by Air Force environmental staff. LUCS prohibit the new use of groundwater as a drinking water source but do not prevent exposure that may occur due to vapor intrusion from groundwater contaminated with volatile substances. Upper Ship Creek surface water is the primary drinking water source for Fort Richardson, however back up wells operated by Doyon exist near SS044P and the VA hospital also has wells. 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.