# Superfund Sites in California: All 97 on a Map (List + Data) | InstaMaps > California has 97 Superfund sites (7.4% of the US), #2 by count and #38 per person. From EPA National Priorities List. Map to embed, CSV download. Source: https://get-instamaps.com/rankings/superfund-sites/california [InstaMaps](/) [Store locator](/store-locator)[All tools](/tools)[Blog](/blog)[ Get Started Free ](https://workspace.google.com/marketplace/app/instamaps/103204565785?utm%5Fsource=get-instamaps&utm%5Fmedium=site&utm%5Fcampaign=toolheader) [← California in the data room](/data/california)[← Full 50-state ranking](/rankings/superfund-sites) # Superfund Sites in California California has **97 Superfund sites**: 7.4% of the US total of 1,316\. That ranks **#2 by count** and **#38 per person** (0.25 per 100,000 residents) of 51. ## Key takeaways * California has 97 Superfund sites, 7.4% of the US total of 1,316. * That ranks #2 of 51 by count and #38 per person (0.25 per 100,000 residents). * New Jersey has the most, with 115. * Source: EPA National Priorities List, September 2026. #38 national rank (per capita) 97 Superfund sites 0.25 per 100k residents ## The data Source: [EPA National Priorities List](https://www.epa.gov/superfund), September 2026\. Every National Priorities List site in the 50 states and DC, at the EPA’s coordinates. Sites in the territories are left out. Licence: U.S. government data: no copyright, free to reuse [California: 97 rows (CSV)](/downloads/superfund-sites/california.csv)[All of the US (CSV)](/downloads/superfund-sites/us.csv) ## Put this map on your website — free Local blogs, news sites, parks pages: embed the live interactive map with one snippet. Attribution stays on, that's the whole deal. `` ## All 97 Superfund sites in California | # | Name | | -- | ------------------------------------------------------------------------- | | 1 | Advanced Micro Devices, Inc. | | 2 | Advanced Micro Devices, Inc. (Building 915) | | 3 | Aerojet General Corp. | | 4 | Afterthought Mine | | 5 | Alameda Naval Air Station | | 6 | Alark Hard Chrome | | 7 | AMCO Chemical | | 8 | Applied Materials | | 9 | Argonaut Mine | | 10 | Atlas Asbestos Mine | | 11 | Barstow Marine Corps Logistics Base | | 12 | Blue Ledge Mine | | 13 | Brown & Bryant, Inc. (Arvin Plant) | | 14 | Camp Pendleton Marine Corps Base | | 15 | Casmalia Resources | | 16 | Castle Air Force Base (6 Areas) | | 17 | Coast Wood Preserving | | 18 | Concord Naval Weapons Station | | 19 | Cooper Drum Company | | 20 | Copper Bluff Mine | | 21 | Crazy Horse Sanitary Landfill | | 22 | CTS Printex, Inc. | | 23 | Del Amo | | 24 | Edwards Air Force Base | | 25 | El Toro Marine Corps Air Station | | 26 | Fairchild Semiconductor Corp. (Mountain View Plant) | | 27 | Fairchild Semiconductor Corp. (South San Jose Plant) | | 28 | Fort Ord | | 29 | Fresno Municipal Sanitary Landfill | | 30 | Frontier Fertilizer | | 31 | George Air Force Base | | 32 | Halaco Engineering Company | | 33 | Hewlett-Packard (620-640 Page Mill Road) | | 34 | Hunters Point Naval Shipyard | | 35 | Industrial Waste Processing | | 36 | Intel Corp. (Mountain View Plant) | | 37 | Intel Magnetics | | 38 | Intersil Inc./Siemens Components | | 39 | Iron Mountain Mine | | 40 | J.H. Baxter & Co. | | 41 | Jervis B. Webb Co. | | 42 | Jet Propulsion Laboratory (NASA) | | 43 | Klau/Buena Vista Mine | | 44 | Koppers Co., Inc. (Oroville Plant) | | 45 | Laboratory for Energy-Related Health Research/Old Campus Landfill (USDOE) | | 46 | Lava Cap Mine | | 47 | Lawrence Livermore Laboratory (USDOE) | | 48 | Lawrence Livermore National Laboratory (Site 300) (USDOE) | | 49 | Leviathan Mine | | 50 | Lorentz Barrel & Drum Co. | | 51 | March Air Force Base | | 52 | Mather Air Force Base | | 53 | McClellan Air Force Base (Ground Water Contamination) | | 54 | McColl | | 55 | McCormick & Baxter Creosoting Co. | | 56 | Modesto Ground Water Contamination | | 57 | Moffett Naval Air Station | | 58 | Monolithic Memories | | 59 | Montrose Chemical Corp. | | 60 | National Semiconductor Corp. | | 61 | New Idria Mercury Mine | | 62 | Newmark Ground Water Contamination | | 63 | Norton Air Force Base | | 64 | Omega Chemical Corporation | | 65 | Operating Industries, Inc., Landfill | | 66 | Orange County North Basin | | 67 | Pacific Coast Pipe Lines | | 68 | Pemaco Maywood | | 69 | Purity Oil Sales, Inc. | | 70 | Raytheon Corp. | | 71 | Riverbank Army Ammunition Plant | | 72 | Rockets, Fireworks, and Flares (RFF) | | 73 | Sacramento Army Depot | | 74 | San Fernando Valley (Area 1) | | 75 | San Fernando Valley (Area 2) | | 76 | San Fernando Valley (Area 4) | | 77 | San Gabriel Valley (Area 1) | | 78 | San Gabriel Valley (Area 2) | | 79 | San Gabriel Valley (Area 3) | | 80 | San Gabriel Valley (Area 4) | | 81 | Selma Treating Co. | | 82 | Sharpe Army Depot | | 83 | South Bay Asbestos Area | | 84 | Southern Avenue Industrial Area | | 85 | Spectra-Physics, Inc. | | 86 | Stringfellow | | 87 | Sulphur Bank Mercury Mine | | 88 | Synertek, Inc. (Building 1) | | 89 | Teledyne Semiconductor | | 90 | Tracy Defense Depot (USARMY) | | 91 | Travis Air Force Base | | 92 | TRW Microwave, Inc. (Building 825) | | 93 | United Heckathorn Co. | | 94 | Valley Wood Preserving, Inc. | | 95 | Waste Disposal, Inc. | | 96 | Watkins-Johnson Co. (Stewart Division Plant) | | 97 | Westinghouse Electric Corp. (Sunnyvale Plant) | Names as the source gives them. Coordinates for every one are in the CSV. ## Cite this "California has 97 Superfund sites, #2 in the US by count and #38 per person (EPA National Priorities List, September 2026, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.