Sites in California
- Advanced Micro Devices, Inc.: Sunnyvale, CA
- Advanced Micro Devices, Inc. (building 915): Sunnyvale, CA
- Aerojet General Corp.: Rancho Cordova, CA
- Alameda Naval Air Station: Alameda, CA
- Alark Hard Chrome: Riverside, CA
- Amco Chemical: Oakland, CA
- Applied Materials: Santa Clara, CA
- Atlas Asbestos Mine: Coalinga, CA
- B.f. Goodrich: Rialto, CA
- Barstow Marine Corps Logistics Base: Barstow, CA
- Beckman Instruments (porterville Plant): Porterville, CA
- Blue Ledge Mine: Rogue River-siskiyou Nf, CA
- Brown & Bryant, Inc. (arvin Plant): Arvin, CA
- Camp Pendleton Marine Corps Base: Camp Pendleton, CA
- Casmalia Resources: Casmalia, CA
- Castle Air Force Base (6 Areas): Merced, CA
- Coast Wood Preserving: Ukiah, CA
- Concord Naval Weapons Station: Concord, CA
- Cooper Drum Co.: South Gate, CA
- Crazy Horse Sanitary Landfill: Salinas, CA
- Cts Printex, Inc.: Mountain View, CA
- Del Amo: Los Angeles, CA
- Edwards Air Force Base: Edwards Afb, CA
- El Toro Marine Corps Air Station: El Toro, CA
- Fairchild Semiconductor Corp. (mountain View Plant): Mountain View, CA
- Fairchild Semiconductor Corp. (south San Jose Plant): San Jose, CA
- Fort Ord: Marina, CA
- Fresno Municipal Sanitary Landfill: Fresno, CA
- Frontier Fertilizer: Davis, CA
- George Air Force Base: Victorville, CA
- Halaco Engineering Company: Oxnard, CA
- Hewlett-packard (620-640 Page Mill Road): Palo Alto, CA
- Industrial Waste Processing: Fresno, CA
- Intel Corp. (mountain View Plant): Mountain View, CA
- Intel Corp. (santa Clara Iii): Santa Clara, CA
- Intel Magnetics: Santa Clara, CA
- Intersil Inc./siemens Components: Cupertino, CA
- Iron Mountain Mine: Redding, CA
- J.h. Baxter & Co.: Weed, CA
- Jasco Chemical Corp.: Mountain View, CA
- Jervis B. Webb Co.: South Gate, CA
- Jet Propulsion Laboratory (nasa): Pasadena, CA
- Klau/buena Vista Mine: Paso Robles, CA
- Koppers Co., Inc. (oroville Plant): Oroville, CA
- Laboratory For Energy-related Health Research/old Campus Landfill (usdoe): Davis, CA
- Lava Cap Mine: Nevada City, CA
- Lawrence Livermore Natl Lab (site 300) (usdoe): Tracy, CA
- Lawrence Livermore Natl Lab, Main Site (usdoe): Livermore, CA
- Leviathan Mine: Markleeville, CA
- Lorentz Barrel & Drum Co.: San Jose, CA
- March Air Force Base: Riverside, CA
- Mather Air Force Base (ac&w Disposal Site): Mather, CA
- Mcclellan Air Force Base (ground Water Contamination): Mcclellan Afb, CA
- Mccoll: Fullerton, CA
- Mccormick & Baxter Creosoting Co.: Stockton, CA
- Mgm Brakes: Cloverdale, CA
- Modesto Ground Water Contamination: Modesto, CA
- Moffett Naval Air Station: Moffett Field, CA
- Monolithic Memories: Sunnyvale, CA
- Montrose Chemical Corp.: Torrance, CA
- National Semiconductor Corp.: Santa Clara, CA
- New Idria Mercury Mine: Idria, CA
- Newmark Ground Water Contamination: San Bernardino, CA
- Norton Air Force Base (lndfll #2): San Bernardino, CA
- Omega Chemical Corporation: Whittier, CA
- Operating Industries, Inc., Landfill: Monterey Park, CA
- Pacific Coast Pipe Lines: Fillmore, CA
- Pemaco Maywood: Maywood, CA
- Purity Oil Sales, Inc.: Malaga, CA
- Raytheon Corp.: Mountain View, CA
- Riverbank Army Ammunition Plant: Riverbank, CA
- Sacramento Army Depot: Sacramento, CA
- San Fernando Valley (area 1): North Hollywood, CA
- San Fernando Valley (area 2): Glendale, CA
- San Fernando Valley (area 4): Los Angeles, CA
- San Gabriel Valley (area 1): El Monte, CA
- San Gabriel Valley (area 2): Baldwin Park, CA
- San Gabriel Valley (area 3): Alhambra, CA
- San Gabriel Valley (area 4): La Puente, CA
- Selma Treating Co.: Selma, CA
- Sharpe Army Depot: Lathrop, CA
- Sola Optical Usa, Inc.: Petaluma, CA
- South Bay Asbestos Area: Alviso, CA
- Southern Avenue Industrial Area: South Gate, CA
- Spectra-physics, Inc.: Mountain View, CA
- Stringfellow: Mira Loma, CA
- Sulphur Bank Mercury Mine: Clearlake Oaks, CA
- Synertek, Inc. (building 1): Santa Clara, CA
- Teledyne Semiconductor: Mountain View, CA
- Tracy Defense Depot (usarmy): Tracy, CA
- Travis Air Force Base: Travis Afb, CA
- Treasure Island Naval Station-hunters Point Annex: San Francisco, CA
- Trw Microwave, Inc (building 825): Sunnyvale, CA
- United Heckathorn Co.: Richmond, CA
- Valley Wood Preserving, Inc.: Turlock, CA
- Waste Disposal, Inc.: Santa Fe Springs, CA
- Watkins-johnson Co. (stewart Division Plant): Scotts Valley, CA
- Westinghouse Electric Corp. (sunnyvale Plant): Sunnyvale, CA