Madera, CA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Madera in California · Population: 158,790
Madera, CA is tracked across three EPA datasets covering 11 Toxics Release Inventory (TRI) facilities, 53 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 43/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 1.2M lbs of reported toxic releases under EPCRA Section 313, while 28 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 52 and a peak AQI of 140 in 2024, with 45% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 163 (45%) | 178 | 25 | 140 |
| 2023 | 162 (44%) | 188 | 14 | 151 |
| 2022 | 147 (40%) | 205 | 13 | 136 |
| 2021 | 133 (36%) | 197 | 28 | 194 |
| 2020 | 104 (28%) | 209 | 34 | 275 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in California, see the EPA's AirNow.gov.
Water Systems (53)
| System | Population | Violations |
|---|---|---|
| CITY OF MADERA | 66,560 | 0 |
| CHOWCHILLA CITY WATER DEPT | 13,916 | 0 |
| Table Mountain Rancheria | 10,675 | 24 |
| MADERA VALLEY WATER COMPANY | 6,494 | 0 |
| YOSEMITE SPRING PARK UTIL CO | 5,300 | 40 |
| VALLEY STATE PRISON | 3,173 | 16 |
| MADERA CO MD10A-MADERA RANCHOS | 3,172 | 0 |
| MADERA CO SA3-PARKSDALE | 1,789 | 1 |
| HOME GARDEN CSD | 1,750 | 3 |
| MADERA CO CMD19-PARKWOOD | 1,637 | 0 |
| MADERA CO SA1-INDIAN LAKES | 1,562 | 0 |
| FCWWD 18/FRIANT | 772 | 0 |
| MD 33 FAIRMEAD | 568 | 0 |
| BROADVIEW TERRACE MUTUAL WATER COMPANY | 498 | 1 |
| MADERA MH & RV PARK | 450 | 0 |
| SKP PARK OF THE SIERRAS INC | 450 | 1 |
| MD 73 QUARTZ MOUNTAIN | 375 | 0 |
| OAK CREEK MOBILE HOME PARK | 370 | 0 |
| MD 37 LA VINA | 350 | 0 |
| MD 46 AHWAHNEE RESORTS | 300 | 29 |
| MD 63 MEADOW SPRINGS RANCH | 300 | 0 |
| FCWWD 18/MIRA BELLA | 274 | 0 |
| MD 08 NORTH FORK WATER SYSTEM | 264 | 42 |
| BASS LAKE HEIGHTS MUTUAL WATER | 250 | 4 |
| MD 05 MOUNTAIN RANCHES | 239 | 3 |
| SIERRA LINDA MUTUAL WATER CO | 200 | 97 |
| MD 07 MARINA VIEW HEIGHTS | 200 | 76 |
| SKY ACRES MUTUAL WATER CORP | 175 | 13 |
| MADERA CO MD1-HIDDEN LAKE ESTATES | 162 | 98 |
| MD 24 TEAFORD MEADOW LAKES | 150 | 57 |
| MD 95 RANCHOS WEST | 150 | 0 |
| MD 60 DILLON ESTATES | 150 | 0 |
| MD 40 SUNSET RIDGE ESTATES | 150 | 0 |
| BONADELLE RANCHOS NO. 2 MUTUAL WATER CO | 142 | 0 |
| CASCADEL MUTUAL WATER SYSTEM | 137 | 0 |
| CEDAR VALLEY MUTUAL WATER CO | 137 | 43 |
| MADERA CO SA16 SUMNER HILL | 135 | 75 |
| SUGAR PINE HOMEOWNERS ASSOC | 120 | 1 |
| YOSEMITE FORKS EST MUTUAL | 110 | 42 |
| MD 43 MIAMI CREEK KNOLLS | 100 | 0 |
| ECCO | 100 | 4 |
| SA 14 CHUK CHANSE SUBDIVISION | 100 | 0 |
| MD 42 STILL MEADOW | 100 | 87 |
| MD 36 EASTIN ARCOLA | 84 | 0 |
| CRASS MUTUAL WATER COMPANY | 80 | 1 |
| MD 58 SIERRA HIGHLANDS | 75 | 2 |
| PIKE RANCH MUTUAL WATER CO | 74 | 16 |
| MD 28 RIPPERDAN SELF HELP | 48 | 0 |
| MD 85 VALETA | 45 | 0 |
| LEISURE ACRES MUTUAL WATER COMPANY | 45 | 21 |
| BASS LAKE ANNEX 3 | 42 | 21 |
| THE VILLAGE | 40 | 10 |
| WHISPERING PINES MHP | 38 | 0 |
TRI Facilities (11)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Ardagh Glass Inc | 571.1K lbs |
| 2 | Florestone LLC | 347.6K lbs |
| 3 | Certainteed LLC | 186.5K lbs |
| 4 | Constellation Brands US Ops Inc (dba Mission Bell Winery) | 26.5K lbs |
| 5 | Oldcastle Infrastructure Inc. | 19.4K lbs |
| 6 | Pacific Ethanol Madera LLC | 6.7K lbs |
| 7 | Baltimore Aircoil Co | 5.4K lbs |
| 8 | Nutra Blend LLC | 4.7K lbs |
| 9 | Moore Quality Galvanizing | 284 lbs |
| 10 | Oldcastle Precast Inc | 12 lbs |
| 11 | Evapco - Madera | 0 lbs |
Cities in Madera (2)
Frequently Asked Questions
What is the environmental risk level in Madera, California? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.