Site Report: AIA Tanks #19, 20, 21
We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
In November 2015 during a routine inspection of three underground storage tanks (USTs) at the Ted Stevens Anchorage International Airport (AIA) Airfield Maintenance Facility, a remote fill system was observed to be incorrectly installed and suspected releases were discovered.
In 2005 the tanks were retrofitted for remote fill. To accommodate new piping, the spill buckets were removed, piping was not correctly installed, and caps on the fill risers were not tightly sealed.
Surface soil analytical samples collected from the manholes (formerly access to the spill buckets) of the three tanks confirmed releases had occurred at all of the tanks. From north to south, Tank 19, a 15,000-gallon diesel tank, Tank 21, an 8,000-gallon gasoline tank, and Tank 20, another 15,000-gallon diesel tank had concentrations of diesel, benzene, and diesel, respectively, that exceeded migration to groundwater cleanup levels.
The Airfield Maintenance Facility is in the Airside Risk Management Zone of TSAIA which is subject to an 18 AAC 75.350 determination prohibiting the use of groundwater as drinking water.
There are no documents for this site report.