Orange County, CA
The federal environmental record for Orange County (population 3,135,755): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
4
Superfund NPL sites
32
federal cleanup sites
18
PFAS-detecting water systems
95
TRI facilities
201
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| El Toro Marine Corps Air Station | El Toro | on the NPL | 02/21/1990 |
| McColl | Fullerton | on the NPL | 09/08/1983 |
| Orange County North Basin | Orange County | on the NPL | 09/03/2020 |
| Ralph Gray Trucking Co. | Westminster | deleted | 10/14/1992 |
Drinking water: PFAS testing
Public water systems serving Orange 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 ANAHEIM CA3010001 | PFOS: 29 ng/L PFBA: 16.5 ng/L PFPeA: 12.4 ng/L | above final limit |
| CITY OF BUENA PARK CA3010003 | PFOS: 6.8 ng/L PFHxS: 3.9 ng/L | above final limit |
| CITY OF FULLERTON CA3010010 | PFOS: 13.3 ng/L PFPeA: 13.2 ng/L PFHxA: 12.4 ng/L | above final limit |
| GOLDEN STATE WC - WEST ORANGE COUNTY CA3010022 | PFOS: 16 ng/L PFHxS: 9.3 ng/L PFOA: 8.1 ng/L | above final limit |
| CITY OF ORANGE CA3010027 | PFPeA: 17.7 ng/L PFOS: 17 ng/L PFBA: 12.6 ng/L | above final limit |
| GOLDEN STATE WC - PLACENTIA/YORBA LINDA CA3010035 | PFPeA: 10.9 ng/L PFHxA: 7.7 ng/L PFBA: 6.7 ng/L | above final limit |
| CITY OF SANTA ANA CA3010038 | PFOS: 14.2 ng/L PFOA: 8.9 ng/L PFHxS: 8.4 ng/L | above final limit |
| CITY OF TUSTIN CA3010046 | PFOS: 4.2 ng/L PFPeA: 3.7 ng/L PFHxS: 3.5 ng/L | above final limit |
| CITY OF HUNTINGTON BEACH CA3010053 | PFOS: 6.1 ng/L PFHxS: 3.3 ng/L | above final limit |
| CITY OF GARDEN GROVE CA3010062 | PFOS: 19 ng/L PFBA: 14.6 ng/L PFHxS: 9.6 ng/L | above final limit |
| CITY OF WESTMINSTER CA3010064 | PFOS: 5.3 ng/L PFHxS: 5 ng/L | above final limit |
| YORBA LINDA WATER DISTRICT CA3010037 | PFBA: 20.6 ng/L PFPeA: 5.3 ng/L | detected |
| SOUTH COAST WATER DISTRICT CA3010042 | PFBA: 5.8 ng/L | detected |
| GOLDEN STATE WC - COWAN HEIGHTS CA3010047 | PFPeA: 7 ng/L PFBA: 6.9 ng/L | detected |
| CITY OF FOUNTAIN VALLEY CA3010069 | PFHxS: 3.5 ng/L | detected |
| EL TORO WATER DISTRICT CA3010079 | PFBA: 6.7 ng/L | detected |
| SERRANO WATER DISTRICT CA3010082 | PFPeA: 16.1 ng/L PFBA: 11.1 ng/L | detected |
| IRVINE RANCH WATER DISTRICT CA3010092 | PFBA: 7.9 ng/L PFPeA: 3.8 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
95 facilities in Orange filed TRI reports for 2024, totalling 383k lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| XERXES CORP | ANAHEIM | Styrene | 85k lb |
| HOWMET GLOBAL FASTENING SYSTEMS INC. | FULLERTON | Nitric acid, Cadmium And Cadmium Compounds | 45k lb |
| CONTINUOUS COATING CORP | ORANGE | Zinc compounds | 37k lb |
| NEWPORT FAB LLC (DBA TOWERJAZZ) | NEWPORT BEACH | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 33k lb |
| NEWPORT LAMINATES INC | SANTA ANA | Styrene | 22k lb |
| BRASSTECH INC. | SANTA ANA | Copper | 20k lb |
| ARROWHEAD PRODUCTS CORP | LOS ALAMITOS | Lead compounds, Chromium compounds (except for chromite ore mined in the Transvaal Region) | 15k lb |
| TRIUMPH PROCESSING-EMBEE DIV | SANTA ANA | Lead And Lead Compounds, Chromium compounds (except for chromite ore mined in the Transvaal Region) | 14k lb |
| CHERRY AEROSPACE | SANTA ANA | Nickel, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 13k lb |
| HOOD MANUFACTURING INC | SANTA ANA | Styrene | 10k lb |
| CYTEC SOLVAY COMPOSITE MATERIALS ANAHEIM | ANAHEIM | Phenol, Formaldehyde | 10k lb |
| AIR INDUSTRIES CO A PCC CO | GARDEN GROVE | Nickel, Chromium | 8k lb |
| SUMMIT INTERCONNECT INC | ANAHEIM | Copper And Copper Compounds, Lead And Lead Compounds | 8k lb |
| ALUMINUM PRECISION PRODUCTS INC | SANTA ANA | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Zinc compounds | 8k lb |
| TTM TECHNOLOGIES N.A. LLC | SANTA ANA | Certain glycol ethers, Copper compounds | 6k lb |
| ALUMINUM PRECISION PRODUCTS ALTON ST FACILITY DIV | SANTA ANA | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Zinc compounds | 5k lb |
| ARLON GRAPHICS LLC | PLACENTIA | Toluene, Xylene (mixed isomers) | 5k lb |
| ANILLO INDUSTRIES INC. | ORANGE | Chromium, Nickel | 5k lb |
| CYTEC SOLVAY COMPOSITE MATERIALS ORANGE | ORANGE | Methanol, Tetrabromobisphenol A | 3k lb |
| GRISWOLD INDUSTRIES | COSTA MESA | Nickel, Copper | 3k lb |
| BRISTOL INDUSTRIES LLC | BREA | Nickel, Chromium | 3k lb |
| GKN AEROSPACE TRANSPARENCY SYSTEMS INC. | GARDEN GROVE | Methyl methacrylate | 3k lb |
| CHEVRON HUNTINGTON BEACH TERMINAL | HUNTINGTON BEACH | Xylene (mixed isomers), Toluene | 2k lb |
| SUMMIT INTERCONNECT INC. ORANGE | ORANGE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Copper And Copper Compounds | 2k lb |
| KINSBURSKY BROTHERS SUPPLY INC. | ANAHEIM | Nickel compounds, Cobalt And Cobalt Compounds | 2k lb |
Underground fuel tanks
EPA's UST Finder records 938 tank facilities in Orange: 2,513 tanks in service and 0 closed. 3,016 fuel releases are on record, of which 201 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Orange 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 Orange, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- ANODYNE INCSANTA ANA
- ANODYNE INCSANTA ANA
- CA160_COSTA MESA_ARCCOSTA MESA
- DATA CIRCUITSORANGE
- FREEWAY AUTO WRECKINGSANTA ANA
- FULLERTON MANUFACTURINGFULLERTON
- GE PLASTICSSANTA ANA
- GOLDEN WEST TOWING EQUIPMENT LPFULLERTON
- GOMEZ SANDBLASTINGANAHEIM
- IMPRESSIONS POLISHING AND PLATINGORANGE
- INMONT CORPANAHEIM
- KHYBER FOODSFULLERTON
- LM CHROME CORPORATIONSANTA ANA
- MBH ELECTRONICSSANTA ANA
- MCCOLLFULLERTON
- MONITOR PLATINGANAHEIM
- NIPTON UNAUTHORIZED LANDFILLNIPTON
- NWS SEAL BEACH WEAPON STATIONSEAL BEACH
- ORANGE COAST PLATINGSANTA ANA
- ORANGE COUNTY METAL PROCESSINGFULLERTON
- ORANGE COUNTY METAL PROCESSINGFULLERTON
- POLYMER DEVELOPMENT LABS #2HUNTINGTON BEACH
- RALPH GRAY TRUCKING CO.WESTMINSTER
- REMTECH RESTORATION CORPFULLERTON
- RICHARDS W C OF CALIFORINAANAHEIM
- ROBLEDO MERCURYMISSION VIEJO
- S & S PLATINGANAHEIM
- SA RECYCLINGANAHEIM
- USPS HUNTINGTON BEACH VMFHUNTINGTON BEACH
- VISTA PAINTFULLERTON
- WESTERN DIGITAL CORPORATIONCOSTA MESA
- XEROX CORPORATIONSANTA ANA