Solano County, CA
The federal environmental record for Solano County (population 449,218): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
3
federal cleanup sites
2
PFAS-detecting water systems
16
TRI facilities
20
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Laboratory for Energy-Related Health Research/Old Campus Landfill (USDOE) | Davis | on the NPL | 05/31/1994 |
| Travis Air Force Base | Solano County | on the NPL | 11/21/1989 |
Drinking water: PFAS testing
Public water systems serving Solano 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 |
|---|---|---|
| CITY OF VACAVILLE CA4810008 | PFOS: 10 ng/L PFHxS: 9.2 ng/L PFOA: 5.1 ng/L | above final limit |
| CITY OF BENICIA CA4810001 | PFBA: 6.3 ng/L PFHxA: 3.4 ng/L PFBS: 3.3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
16 facilities in Solano filed TRI reports for 2024, totalling 886k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| VALERO REFINING CO-CALI FORNIA BENICIA REFINERY | BENICIA | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 726k lb |
| BALL METAL BEVERAGE CONTAINER CORP | FAIRFIELD | Certain glycol ethers, n-Butyl alcohol | 110k lb |
| ARDAGH METAL BEVERAGE USA INC RE: FAIRFIELD PLANT | FAIRFIELD | Certain glycol ethers, n-Butyl alcohol | 25k lb |
| ANHEUSER-BUSCH LLC - FAIRFIELD BREWERY | FAIRFIELD | Ammonia, Hydrogen sulfide | 21k lb |
| ROCKWELL COLLINS INC | FAIRFIELD | Lead And Lead Compounds | 2k lb |
| ALL WEATHER INSULATED PANELS | VACAVILLE | Diisocyanates | 787 lb |
| WR MEADOWS OF NORTHERN CALIFORNIA | BENICIA | 1,2,4-Trimethylbenzene | 598 lb |
| UNIVAR SOLUTIONS USA | FAIRFIELD | Xylene (mixed isomers), Methanol | 225 lb |
| U.S. DOD USAF TRAVIS AFB | TRAVIS AFB | Naphthalene, Ethylbenzene | 169 lb |
| DURAVENT INC. | VACAVILLE | Chromium, Manganese | 95 lb |
| COURT GALVANIZING INC. | VACAVILLE | Zinc compounds | 91 lb |
| CLOROX MANUFACTURING CO | FAIRFIELD | Certain glycol ethers | 13 lb |
| PRODUCERS DAIRY FOODS INC | FAIRFIELD | Nitric acid | 10 lb |
| BASALITE | DIXON | Lead, Mercury | 0 lb |
| LAKE HERMAN QUARRY | VALLEJO | Polycyclic aromatic compounds, Benzo[g,h,i]perylene | 0 lb |
| CEMEX CONSTRUCTION MATERIALS PACIFIC LLC | FAIRFIELD | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 178 tank facilities in Solano: 490 tanks in service and 0 closed. 535 fuel releases are on record, of which 20 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Solano as Zone 3, the lowest predicted indoor radon (under 2 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 Solano, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- THE TREMONT GROUP, INC. TSI DIVISIONDIXON
- TRAVIS AIR FORCE BASEFAIRFIELD
- WICKES FOREST INDUSTRIESELMIRA