List of Superfund sites in Idaho

CERCLIS ID Name County Reason Proposed^[3] Listed^[4] Construction
completed^[5] Partially
deleted^[6] Deleted^[7] IDD000800961 Arrcom (Drexler Enterprises) Kootenai Site soil contamination by VOCs, heavy metals including lead and mercury, acid, PCBs and PCP from waste oil recycling. Asbestos contamination in site buildings.^[8][9] 12/30/1982 09/08/1983

06/30/1992

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12/23/1992 IDD980725832 Blackbird Mine Lemhi Groundwater, surface water, soil and sediment contamination by copper, cobalt and arsenic. Acid rock drainage from mine tunnels and waste has decreased water quality in local creeks, affecting chinook salmon and other threatened and endangered species.^[10][11] 05/10/1993

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IDD048340921 Bunker Hill Mining & Metallurgical Shoshone The Coeur d’Alene River basin contains millions of tons of mine tailings, waste rock and ore concentrates. Soil, sediments, groundwater and surface water are contaminated with heavy metals including cadmium, lead and zinc from former mining and smelting operations.^[12][13] 12/30/1982 09/08/1983

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IDD984666610 Eastern Michaud Flats Contamination Power and Bannock Groundwater and surface water contamination by arsenic and phosphorus from phosphorus ore processing plants. Off-site soil contamination from airborne release of fluoride, radium-226 and cadmium; on-site soil contamination by cadmium, chromium, copper, lead, nickel, silver, vanadium, zinc, radium-226 and fluoride.^[14][15] 05/05/1989 08/30/1990

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ID4890008952 Idaho National Laboratory (DOE) Butte, Clark, Jefferson, and Bingham Groundwater contamination by hexavalent chromium, iodine-129, strontium-90, technetium-99, tritium, carbon tetrachloride and TCE; soil contamination by heavy metals including lead and mercury, by VOCs, and by radionuclides, including cesium-137, strontium-90, and plutonium.^[16][17] 07/14/1989 11/21/1989

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IDD041310707 Kerr-McGee Chemical Corp. (Soda Springs) Caribou Surface water, ground water and solid waste contamination by vanadium, arsenic, molybdenum, manganese, tributyl phosphate and total petroleum hydrocarbons.^[18][19] 05/05/1989 10/04/1989

09/26/2001

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IDD081830994 Monsanto Chemical Co. (Soda Springs) Caribou Groundwater contamination by cadmium, selenium, nitrate, and fluoride from phosphorus ore processing plant. Soil on-site and on nearby buffer properties contaminated by radium-226 blown from ore stockpiles.^[20][21] 05/05/1989 08/30/1990

09/20/2000

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ID3572124557 Mountain Home Air Force Base Elmore Groundwater contamination by TCE, aviation fuel and benzene from aircraft maintenance and industrial operations.^[22][23] 07/14/1989 08/30/1990

09/30/1998

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IDD098812878 Pacific Hide & Fur Recycling Co. Bannock Soil contamination by PCBs, lead and other inorganic compounds from scrap metal disposal.^[24][25] 09/08/1983 09/21/1984

09/29/1997

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11/04/1999 IDSFN1002095 St. Maries Creosote Benewah Creosote contamination of debris, soil and surface water from pole treatment plant.^[26][27] 12/01/2000

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IDD980665459 Stibnite/Yellow Pine Mining Area Valley Heavy metal, arsenic and cyanide contamination of groundwater, seeps, sediments and soils from gold-antimony ore mining and milling.^[28][29] 09/13/2001

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IDD055030852 Union Pacific Railroad Co. Bannock Groundwater contamination by heavy metals, PAHs and organic compounds from Union Pacific’s waste water treatment facility and an adjacent tie treatment plant.^[30][31] 09/08/1983 09/21/1984 09/19/1996

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09/22/1997^[32]