Butte, 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 Butte in California · Population: 209,470
Butte, CA is tracked across three EPA datasets covering 2 Toxics Release Inventory (TRI) facilities, 28 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 16/100 (Low Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 0 lbs of reported toxic releases under EPCRA Section 313, while 15 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 46 and a peak AQI of 213 in 2024, with 63% 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 | 231 (63%) | 133 | 0 | 213 |
| 2023 | 191 (52%) | 174 | 0 | 100 |
| 2022 | 191 (52%) | 171 | 3 | 119 |
| 2021 | 160 (44%) | 174 | 18 | 257 |
| 2020 | 149 (41%) | 178 | 18 | 508 |
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 (28)
| System | Population | Violations |
|---|---|---|
| SOUTH FEATHER W&P - MINERS RANCH | 22,664 | 0 |
| THERMALITO WATER & SEWER DIST | 12,136 | 2 |
| PARADISE IRRIGATION DISTRICT | 9,142 | 0 |
| CITY OF GRIDLEY | 7,269 | 1 |
| CITY OF BIGGS | 2,060 | 1 |
| DURHAM IRRIGATION DISTRICT | 1,581 | 0 |
| GRIDLEY FARM LABOR HOUSING | 460 | 0 |
| BUTTE CREEK ESTATES MUTUAL WATER CO | 399 | 0 |
| PLEASANT GROVE MHP | 327 | 1 |
| LAKE MADRONE WATER DISTRICT | 297 | 0 |
| GRAN MUTUAL WATER CO | 290 | 0 |
| ALMOND GROVE MOBILE PARK | 253 | 1 |
| FOOTHILLS MANUFACTURED HOME COMMUNUTY | 180 | 1 |
| KEEFER CREEK ESTATES | 160 | 0 |
| YOUTH WITH A MISSION-SPRINGS OF LIVING W | 150 | 0 |
| SIERRA MOON MUTUAL WATER COMPANY | 120 | 1 |
| FOREST RANCH MUTUAL WATER SYSTEM | 119 | 2 |
| MERRY MOUNTAIN MUTUAL | 90 | 1 |
| BLUE OAK TERRACE MUTUAL | 81 | 0 |
| SOUTH FEATHER W&P - BANGOR | 73 | 0 |
| HUMBOLDT HIGHLANDS MUTUAL | 58 | 0 |
| HUMBOLDT WOODLANDS MUTUAL | 55 | 1 |
| FOREST KNOLLS MUTUAL WATER CO | 46 | 2 |
| HARTLEY MUTUAL WATER SYSTEM | 41 | 1 |
| MOUNTAIN VILLAGE HOMEOWNER'S ASSOC | 40 | 1 |
| BERRY CREEK COMMUNITY SERVICE DIST | 28 | 1 |
| FALLING ROCK RV PARK | 25 | 0 |
| BIGGERS GLEN MUTUAL WATER CO | 25 | 1 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Federal Cartridge Company-Oroville Operations | 0 lbs |
| 2 | A&a Concrete Supply Inc Chico Plant | 0 lbs |
Cities in Butte (2)
Frequently Asked Questions
What is the environmental risk level in Butte, California? ▼
Are there Superfund sites in Butte? ▼
How many toxic release facilities are in Butte? ▼
What is the air quality in Butte? ▼
Is the drinking water safe in Butte? ▼
What environmental agencies cover Butte? ▼
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.