Superfund Record of Decision (EPA Region 10): Wyckoff/Eagle Harbor, WA. (First remedial action), September 1992

Technical Report · Tue Sep 29 00:00:00 EDT 1992

OSTI ID:5776331

The 3,780-acre Wyckoff/Eagle Harbor site is located on the east side of Bainbridge Island, in Central Puget Sound, Kitsap County, Washington. The site consists of an inactive 40-acre wood treating facility owned by Wyckoff, the adjacent 500-acre Eagle Harbor and other upland sources of contamination to the Harbor, including a former shipyears. The selected remedial action for this site includes dredging, dewatering, excavating approximately 1,000 to 7,000 cubic yards of intertidal sediment that exceed levels of 5 mg/kg mercury and/or lower moderate PAH concentrations, followed by treatment using solidification/stabilization, if necessary, to comply with LDR as determined by bench scale tests; transporting sediment, which cannot be treated to meet LDR offsite for disposal at a RCRA-permitted landfill; treating wastewater from the dewatering process using carbon adsorption before discharge into the harbor; capping over sediment in areas of high concern with a 1-meter thick layer of clean sediment; placing a thin layer of clean sediment in subtidal areas of low to moderate concern to enhance natural sediment recovery; conducting long-term environmental monitoring; and implementing institutional controls to prevent exposure to contaminated fish and shellfish. The estimated present worth cost for this remedial action ranges from $6,200,000 to $16,000,000 which includes a present worth O M cost of $1,100,000 for 10 years.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 5776331
• Report Number(s): PB-93-964618/XAB; EPA/ROD/R-10-92/047
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
SEDIMENTS
REMEDIAL ACTION
US SUPERFUND
DECISIONS AND ORDERS
ADSORPTION
ARSENIC
CHROMIUM
CONTAMINATION
COST ESTIMATION
CREOSOTE
DREDGING
HAZARDOUS MATERIALS
INSTITUTIONAL SECTOR
MERCURY
POLLUTION CONTROL
POLYCYCLIC AROMATIC HYDROCARBONS
PRESERVATIVES
PUGET SOUND
SANITARY LANDFILLS
SOLIDIFICATION
STABILIZATION
US EPA
WASHINGTON
WASTE DISPOSAL
WASTE WATER
WATER REMOVAL
ADMINISTRATIVE PROCEDURES
AROMATICS
CONTROL
DEVELOPED COUNTRIES
ELEMENTS
HYDROCARBONS
HYDROGEN COMPOUNDS
LAWS
LIQUID WASTES
MANAGEMENT
MATERIALS
METALS
NATIONAL ORGANIZATIONS
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PACIFIC OCEAN
PHASE TRANSFORMATIONS
POLLUTION LAWS
REMOVAL
SEAS
SEMIMETALS
SORPTION
SURFACE WATERS
TRANSITION ELEMENTS
US ORGANIZATIONS
USA
WASTE MANAGEMENT
WASTES
WATER
540250* - Environment
Terrestrial- Site Resource & Use Studies- (1990-)
540350 - Environment
Aquatic- Site Resource & Use Studies- (1990-)