Alameda County, CA
The federal environmental record for Alameda County (population 1,622,188): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
4
Superfund NPL sites
30
federal cleanup sites
3
PFAS-detecting water systems
36
TRI facilities
268
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Alameda Naval Air Station | Alameda | on the NPL | 07/22/1999 |
| AMCO Chemical | Oakland | on the NPL | 09/29/2003 |
| Lawrence Livermore Laboratory (USDOE) | Livermore | on the NPL | 07/22/1987 |
| Lawrence Livermore National Laboratory (Site 300) (USDOE) | Livermore | on the NPL | 08/30/1990 |
Drinking water: PFAS testing
Public water systems serving Alameda with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| CALIFORNIA WATER SERVICE - LIVERMORE CA0110003 | PFOS: 12 ng/L PFHxS: 9.8 ng/L PFOA: 4.8 ng/L | above final limit |
| CITY OF PLEASANTON CA0110008 | PFOS: 26 ng/L PFHxS: 22 ng/L PFBA: 6.3 ng/L | above final limit |
| EAST BAY MUD CA0110005 | PFBA: 5.2 ng/L PFHxA: 3.5 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
36 facilities in Alameda filed TRI reports for 2024, totalling 3.4M lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| TESLA INC | FREMONT | Zinc compounds, Ethylene glycol | 1.6M lb |
| US PIPE & FOUNDRY CO LLC | UNION CITY | Zinc compounds, Manganese compounds | 845k lb |
| SAFETY-KLEEN INC | NEWARK | Ethylene glycol, Zinc compounds | 806k lb |
| TESLA INC. | FREMONT | Nickel compounds, Cobalt compounds | 82k lb |
| WESTERN DIGITAL TECHNOLOGIES - FREMONT | FREMONT | N-Methyl-2-pyrrolidone | 37k lb |
| ROHM & HAAS CHEMICALS LLC | HAYWARD | Zinc compounds, Ammonia | 5k lb |
| PENTAGON TECHNOLOGIES INC | HAYWARD | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid | 5k lb |
| GOOGLE LLC | FREMONT | Ammonia | 5k lb |
| CERTAINTEED LLC | FREMONT | Copper compounds, Polycyclic aromatic compounds | 3k lb |
| PCC STRUCTURALS-SAN LEANDRO | SAN LEANDRO | Nickel, Chromium | 2k lb |
| ROYAL CHEMICAL CO | HAYWARD | Nonylphenol Ethoxylates, Nitric acid | 1k lb |
| CHRISTY | FREMONT | Chromium | 750 lb |
| PACIFIC GALVANIZING INC. | OAKLAND | Zinc compounds | 249 lb |
| GILLIG | LIVERMORE | Methyl methacrylate, Ethylene glycol | 183 lb |
| EKC TECHNOLOGY INC. | HAYWARD | Catechol, N-Methyl-2-pyrrolidone | 121 lb |
| ELECTRO-COATINGS OF CALIFORNIA INC | BERKELEY | Lead compounds | 74 lb |
| CONFLUENT MEDICAL TECHNOLOGIES | FREMONT | Nickel, Methanol | 68 lb |
| AERC RECYCLING SOLUTIONS | HAYWARD | Mercury | 68 lb |
| APPLIED BIOSYSTEMS LLC | PLEASANTON | Dichloromethane, Acetonitrile | 65 lb |
| CHEMICAL COMPOUNDING CO | OAKLAND | Nitric acid, Certain glycol ethers | 49 lb |
| U.S. DOE LAWRENCE LIVERMORE NATIONAL LABORATORY | LIVERMORE | Mercury | 37 lb |
| TRANSENE CO OAKLAND | OAKLAND | Nitric acid, Hydrogen fluoride | 20 lb |
| MISSION VALLEY ROCK | SUNOL | Zinc compounds, Aluminum (fume or dust) | 8 lb |
| OLDCASTLE PRECAST INC | PLEASANTON | Lead compounds, Mercury compounds | 1 lb |
| BMCC | FREMONT | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 552 tank facilities in Alameda: 1,503 tanks in service and 0 closed. 2,540 fuel releases are on record, of which 268 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Alameda as Zone 2, moderate predicted indoor radon (2 to 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Alameda, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- A. BERCOVICH/SUNSET SMELTING AND REFINING COMPANYOAKLAND
- AAD OAKLANDOAKLAND
- ABLE METALS PLATINGOAKLAND
- ACME GALVANIZINGOAKLAND
- AERO PLATINGOAKLAND
- ALAMEDA COUNTY MERCURY MYSTERYHAYWARD
- AMCO CHEMICAL SUPERFUND SITEOAKLAND
- BRANN STREET MERCURYOAKLAND
- BRANN STREET MERCURYOAKLAND
- CAL TECH METAL FINISHERS INCOAKLAND
- CALIFORNIA WASTE SOLUTIONSOAKLAND
- CAMP PARKS COMM. ANNEXPLEASANTON
- CAMPUS CLEAN UP - OAKLAND AVIATION SCHOOLOAKLAND
- CASS INCOAKLAND
- ED-COAT, INC.OAKLAND
- ELMHURST ANODIZINGOAKLAND
- FRANCIS PLATING OF OAKLAND INCOAKLAND
- KIMBERLY COMMONS MERCURYLIVERMORE
- LAWRENCE LIVERMORE NATL LAB, MAIN SITE (USDOE)LIVERMORE
- LOTTA STUFFSAN LEANDRO
- NAVAL HOSPITALOAKLAND
- OAKLAND AVIATION SCHOOL MERCURY RELEASEOAKLAND
- PACIFIC STATES STEELUNION CITY
- ROBERTS TIRESOAKLAND
- STEELER INCNEWARK
- TRACY MAINTENANCE FACILITYBYRON
- U S DOJ FEDERAL CORRECTION INSTITUTIONDUBLIN
- US COAST GUARD INTEGRATED SUPPORT COMMANDALAMEDA
- USDA ARS CA ALBANYALBANY
- USDOE LAWRENCE LIVERMORE NATIONAL LABORATORYLIVERMORE