Destruction Island, WA: Hazardous Materials and Environmental Assessment Report
Destruction Island is located approximately 3 1/2 miles off the Washington State coast and occupied by seabirds, shorebirds, and marine mammals. It is part of the Quillayute Needles National Wildlife Refuge (NWR). It has a lighthouse which was built in 1907 and included residential housing for the lighthouse keepers and additional facilities that occupied the western portion of the island. The facilities included a landing dock for supplies, a water collection and distribution system, a diesel fuel distribution system, and a tram car system for moving materials and supplies. The housing has been burned or demolished except for a few small buildings and abandoned structures. The purpose of this report was to provide assessment for the areas of concern identified in 1997 which included, the lighthouse area, the water tower, and the helipad. Samples were taken from these areas to determine the contamination due to leaded paint, solvents, fuel lines and fuel storage and other metals. Paint samples were collected to test for lead. Soil samples were collected from the surface and approximately 5 feet below ground surface.
Results: Elevated levels of lead were found in the surface soils in the Lighthouse area which was probably the result of weathering leaded paint. The lead was concentrated in the upper foot of soil in the vicinity of the buildings. Elevated cadmium concentrations were also found beneath the Paint Locker, the Oil House Building, the Burn Barrel, the fuel line near the lighthouse, the former above ground storage tank (AST) location, and a 2 inch PVC drainpipe outlet from the Fog Signal Building. These concentrations may be due to past disposal practices. Arsenic concentrations were also elevated near the Burn Barrel, the fuel line near the lighthouse and the former AST location. This may be due to past agricultural practices on the island. No elevated levels of silver, barium, chromium, mercury, or selenium were found in the Lighthouse area. Elevated levels of diesel and lube oil range petroleum were detected at the Fog Signal, Paint Locker, Oil House buildings, and along the fuel line in the Lighthouse Area. This may be due to past leaks or spills in the fuel line and or poor fuel handling practices. Elevated lead concentrations were found in surface soil samples around the tramcar shed. Lead was also detected in samples from demolished housing in the Water Tower Area. Elevated levels of cadmium were detected in samples from the demolished hosing debris and the former AST area. They may be related to building material composition and past fuel handling practices. An elevated level of diesel range petroleum was found at the former AST location in the Water Towerarea. This was probably due to past fuel handling and storing practices. Elevated levels of lead and cadmium were detected in demolished hosing debris in the Heliport Area. Diesel range petroleum was found at the Fuel bunker at a depth of 4.5 feet. Liquid phase petroleum hydrocarbons (LPH) were observed in the concrete bunker which appeared to have an estimated 0.1 inch of diesel fuel floating on approximately 1 foot of water.
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