Checked
Superfund Sites in California
116 Superfund sites in 58 cities and 36 counties · Data as of 10/28/2026
Superfund sites on this page
Superfund sites in California at a glance
- With a population of 39,287,377, California has 116 Superfund sites (3.0 per 1 million people).
- Per person, that is 46% below the national rate (5.4 per 1 million).
- It ranks 4th among the states by number of Superfund sites.
- The largest group is Final NPL Site (84%), ahead of Deleted NPL Site and Proposed NPL Site.
- Mountain View (7), Santa Clara (6) and Sunnyvale (5) have the most, 16% of the state total combined.
Find Superfund sites by city or county
Pick a place to see its full list
·
- Mountain View7
- Santa Clara6
- Sunnyvale5
- Los Angeles3
- San Jose3
- South Gate3
- Fresno2
- Fullerton2
- Richmond2
- Sacramento2
- San Bernardino2
- Alameda1
- Alhambra1
- Arvin1
- Barstow1
- Bell1
- Burbank1
- Camp Pendleton Mainside1
- Cloverdale1
- Davis1
- Fairfield1
- Glendale1
- Hoopa1
- Industry1
- Irvine1
- Jackson1
- Jurupa Valley1
- Lathrop1
- Livermore1
- March ARB1
- Mather1
- McClellan Park1
- Modesto1
- Monrovia1
- Monterey Park1
- Oakland1
- Oroville1
- Oxnard1
- Palo Alto1
- Pasadena1
- Petaluma1
- Porterville1
- Prunedale1
- Rialto1
- Riverbank1
- Riverside1
- San Francisco1
- Santa Fe Springs1
- Scotts Valley1
- Selma1
- South Oroville1
- Stockton1
- Vernon1
- Victorville1
- Visalia1
- West Covina1
- Westminster1
- Whittier1
All Superfund sites in California
116 listed, A to Z · Page 1 of 4
- Advanced Micro Devices, Inc.Final NPL Site, 10 contaminants901 Thompson Pl, Sunnyvale, CA
- Advanced Micro Devices, Inc. (Building 915)Final NPL Site, 20 contaminants915 Deguigne, Sunnyvale, CA
- Aerojet General Corp.Final NPL Site, 72 contaminantsHwy US 50 & Aerojet Rd, Rancho Cordova, CA
- Afterthought MineFinal NPL SiteHighway 299, Shasta County, Bella Vista, CA
- Alameda Naval Air StationFederalFinal NPL Site, 80 contaminantsW End City of Alameda, Alameda, CA
- Alark Hard ChromeFinal NPL Site2777 Main Street, Riverside, CA
- Amco ChemicalFinal NPL Site1414 Third Street, Oakland, CA
- Applied MaterialsFinal NPL Site, 13 contaminants3050 Bowers Ave, Santa Clara, CA
- Argonaut MineFinal NPL SiteArgonaut Lane, Jackson, CA
- Atlas Asbestos MineFinal NPL Site, 2 contaminantsLos Gatos Creek Rd NW of Fresno, Coalinga, CA
- Barstow Marine Corps Logistics BaseFederalFinal NPL Site, 27 contaminantsMarine Corps Logis Base- Nebo, Barstow, CA
- Beckman Instruments (Porterville Plant)Deleted NPL Site, 6 contaminants167 W Poplar Ave, Porterville, CA
- Blue Ledge MineFinal NPL SiteSections 34, Township 48 N, Range 11 W, Rogue River-Siskiyou NF, CA
- Brown & Bryant, Inc. (Arvin Plant)Final NPL Site, 7 contaminants600 S Derby Rd, Arvin, CA
- Camp Pendleton Marine Corps BaseFederalFinal NPL Site, 36 contaminantsCamp Pendleton Marine Base, Camp Pendleton, CA
- Casmalia ResourcesFinal NPL Site, 88 contaminants3300 Ntu Road, Casmalia, CA
- Castle Air Force Base (6 Areas)FederalFinal NPL Site, 77 contaminantsCastle AFB, Merced, CA
- Celtor Chemical WorksDeleted NPL Site, 6 contaminantsBetw Norton Fld & Trinity Riv, Hoopa, CA
- Coalinga Asbestos MineDeleted NPL Site, 2 contaminantsPine Cyn 15 Mi NW of, Coalinga, CA
- Coast Wood PreservingFinal NPL Site, 3 contaminantsPlant Rd & Taylor Dr, Ukiah, CA
- Concord Naval Weapons StationFederalFinal NPL Site, 19 contaminantsPort Chicago Hwy, Concord, CA
- Cooper Drum co.Final NPL Site, 21 contaminants9316 Atlantic Ave, South Gate, CA
- Copper Bluff MineFinal NPL SiteOff Highway 96, Approximately 0.9 Mile, Hoopa, CA
- Crazy Horse Sanitary LandfillFinal NPL Site350 Crazy Horse Canyon Road, Salinas, CA
- Cts Printex, Inc.Final NPL Site, 14 contaminantsPlymouth & Colony Sts, Mountain View, CA
- Del AmoFinal NPL Site, 28 contaminantsDel Amo Blvd and Vermont Ave, Los Angeles, CA
- Del Norte Pesticide StorageDeleted NPL Site, 4 contaminants2650 Washington Blvd, Crescent City, CA
- Edwards Air Force BaseFederalFinal NPL Site, 52 contaminantsAfftc Edwards AFB, Edwards AFB, CA
- Exide Technologies - VernonProposed NPL Site2700 South Indiana Street, Vernon, CA
- Fairchild Semiconductor Corp. (Mountain View Plant)Final NPL Site, 17 contaminants369, 515 N Whisman, 313 Fairchild & 401 National, Mountain View, CA
Frequently asked questions
- How many Superfund sites are in California?
- There are 116 Superfund sites in California in our data as of 10/28/2026.
- Which California cities have the most Superfund sites?
- Mountain View (7), Santa Clara (6), Sunnyvale (5), Los Angeles (3), San Jose (3).