Calaveras, CA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Calaveras in California · Population: 45,995
SDWIS systems such as CCWD - EBBETTS PASS; CCWD - JENNY LIND; CALAVERAS PUD anchor Calaveras, CA's EPA extract. Derived burden score 15/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
No TRI Form R facilities sit in Calaveras in this extract; water coverage still lists CCWD - EBBETTS PASS; CCWD - JENNY LIND; CALAVERAS PUD. AQS monitors logged median AQI 42 / peak 129 in 2024.
Burden score 15/100 (Low Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Calaveras -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
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 | 261 (73%) | 90 | 8 | 129 |
| 2023 | 292 (80%) | 72 | 1 | 101 |
| 2022 | 286 (79%) | 77 | 1 | 115 |
| 2021 | 220 (60%) | 135 | 6 | 178 |
| 2020 | 206 (57%) | 135 | 10 | 210 |
Source: 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 (18)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CCWD - EBBETTS PASS | 11,545 | 10 |
| CCWD - JENNY LIND | 9,861 | 1 |
| CALAVERAS PUD | 6,286 | 0 |
| CCWD - COPPER COVE | 5,187 | 0 |
| UNION PUBLIC UTILITY DISTRICT | 4,774 | 10 |
| ANGELS, CITY OF | 3,836 | 4 |
| CCWD - WEST POINT | 1,043 | 0 |
| CAMANCHE NORTH SHORE INC. | 922 | 0 |
| VALLEY SPRINGS PUD | 900 | 0 |
| CAMANCHE SOUTH SHORE-EBMUD | 828 | 4 |
| ANGELS CAMP RV/CAMPING RESORT | 288 | 16 |
| CCWD - WALLACE | 255 | 0 |
| RITE OF PASSAGE/SIERRA RIDGE | 150 | 2 |
| LILI VALLEY WATER CO. | 99 | 1 |
| CCWD - SHEEP RANCH | 89 | 0 |
| COUNTRY MANOR MHP | 75 | 0 |
| MINERAL MOUNTAIN MUTUAL WATER | 67 | 1 |
| LAKESIDE MOBILE ESTATES | 30 | 1 |
Cities in Calaveras (7)
Frequently Asked Questions
What is the environmental risk level in Calaveras, California? ▼
Are there Superfund sites in Calaveras? ▼
How many toxic release facilities are in Calaveras? ▼
What is the air quality in Calaveras? ▼
Is the drinking water safe in Calaveras? ▼
What environmental agencies cover Calaveras? ▼
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.