El Dorado, 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 El Dorado in California · Population: 192,299
El Dorado, CA is tracked across three EPA datasets covering 1 Toxics Release Inventory (TRI) facility, 25 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 1 lbs of reported toxic releases under EPCRA Section 313, while 11 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 44 and a peak AQI of 115 in 2024, with 71% 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 | 261 (71%) | 97 | 8 | 115 |
| 2023 | 259 (71%) | 101 | 5 | 119 |
| 2022 | 258 (71%) | 93 | 12 | 186 |
| 2021 | 247 (68%) | 96 | 16 | 375 |
| 2020 | 256 (70%) | 87 | 17 | 190 |
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 (25)
| System | Population | Violations |
|---|---|---|
| EL DORADO ID - MAIN | 132,171 | 3 |
| SOUTH TAHOE PUD - MAIN | 100,000 | 0 |
| Red Hawk Casino - Shingle Springs | 11,268 | 0 |
| GEORGETOWN DIVIDE PUD | 9,434 | 0 |
| PLACERVILLE, CITY OF - MAIN | 9,224 | 0 |
| LUKINS BROTHERS WATER COMPANY | 3,277 | 4 |
| LAKESIDE PARK ASSOCIATION | 2,648 | 0 |
| TAHOE KEYS WATER COMPANY | 1,420 | 2 |
| GRIZZLY FLATS COMMUNITY SERVIC | 1,374 | 0 |
| TAHOE PARK WATER COMPANY | 750 | 3 |
| EL DORADO ID - OUTINGDALE | 535 | 0 |
| EL DORADO ID - STRAWBERRY | 400 | 0 |
| TALMADGE OAKS MOBILE HOME PARK | 226 | 0 |
| CALHOUN UTILITY | 213 | 0 |
| ORLAND MOBILE H.P. | 178 | 4 |
| POJOAQUE TERRACES MHP | 160 | 42 |
| KYBURZ MUTUAL WATER COMPANY | 150 | 23 |
| CRYSTAL CAVES MHP | 112 | 0 |
| BEAR STATE WATER WORKS | 100 | 0 |
| QUINTETTE SERVICE CORP WATER | 80 | 2 |
| CANDLELIGHT VILLAGE MUTUAL WATER CO. | 75 | 0 |
| SIERRA PINES MOBILE HOME PARK | 70 | 1 |
| THE FALLS MOBILE HOME COMMUNITY | 60 | 0 |
| TAHOE PARK WATER CO - SKYLAND/NIELSEN | 50 | 2 |
| FOREST VILLAGE LLC | 28 | 2 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Syar Cameron Park | 1 lbs |
Cities in El Dorado (1)
Frequently Asked Questions
What is the environmental risk level in El Dorado, California? ▼
Are there Superfund sites in El Dorado? ▼
How many toxic release facilities are in El Dorado? ▼
What is the air quality in El Dorado? ▼
Is the drinking water safe in El Dorado? ▼
What environmental agencies cover El Dorado? ▼
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.