Madera County, CA
The federal environmental record for Madera County (population 162,858): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
1
federal cleanup sites
3
PFAS-detecting water systems
11
TRI facilities
8
open tank releases
Drinking water: PFAS testing
Public water systems serving Madera 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 |
|---|---|---|
| CHOWCHILLA CITY WATER DEPT CA2010001 | PFOA: 4.5 ng/L | above final limit |
| YOSEMITE SPRING PARK UTIL CO CA2010005 | PFHxS: 13.8 ng/L PFBS: 13.1 ng/L PFOS: 7.9 ng/L | above final limit |
| BASS LAKE WATER COMPANY CA2010003 | PFBA: 7.5 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
11 facilities in Madera filed TRI reports for 2024, totalling 148k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| FLORESTONE LLC | MADERA | Styrene | 83k lb |
| ARDAGH GLASS INC | MADERA | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Lead And Lead Compounds | 57k lb |
| OLDCASTLE INFRASTRUCTURE INC. | MADERA | Styrene, Lead compounds | 7k lb |
| NUTRA BLEND LLC | MADERA | Zinc compounds | 733 lb |
| BALTIMORE AIRCOIL CO | MADERA | Nickel And Nickel Compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 697 lb |
| MOORE QUALITY GALVANIZING | MADERA | Zinc compounds | 138 lb |
| CERTAINTEED LLC | CHOWCHILLA | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Barium And Barium Compounds | 59 lb |
| OLDCASTLE PRECAST INC | CHOWCHILLA | Lead compounds | 11 lb |
| EVAPCO - MADERA | MADERA | Chromium, Nickel | 7 lb |
| MILES CHEMICAL CO | MADERA | - | 0 lb |
| CONSTELLATION BRANDS US OPS INC (DBA MISSION BELL WINERY) | MADERA | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 76 tank facilities in Madera: 214 tanks in service and 0 closed. 219 fuel releases are on record, of which 8 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Madera 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 Madera, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- MACGILLIS & GIBBS COMADERA