Superfund Site: BANGOR NAVAL SUBMARINE BASE, SILVERDALE, WA
Superfund Site Profile
The 7,000-acre Bangor Naval Submarine Base site is located along Hood Canal near Silverdale, Washington. From the early 1940s until 1973, the U.S. Navy used the site to store, process and ship munitions. In 1977, the U.S. Navy recommissioned the property as a submarine base to support the Trident submarine fleet in the Pacific. Site activities, including detonation, demilitarization and disposal of explosive ordnance, as well base mission support activities, contributed to past releases of chemicals at the base. These activities contaminated groundwater, soil, sludge and surface water with hazardous chemicals. Following cleanup, operation and maintenance activities are ongoing.
TOPICS IN FOCUS
In 1983, the Navy identified 42 potential contaminant source areas that might need further investigation. Of those, 20 were later determined to present no concern. In 1990, the Navy, EPA and the state signed a Federal Facilities Agreement to address site contamination.