El Dorado, 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 El Dorado in California · Population: 192,299
TRI sites such as Syar Cameron Park; SDWIS systems such as EL DORADO ID - MAIN; SOUTH TAHOE PUD - MAIN; Red Hawk Casino - Shingle Springs anchor El Dorado, CA's EPA extract. Derived burden score 16/100 (Low Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in El Dorado include EL DORADO ID - MAIN; LUKINS BROTHERS WATER COMPANY; TAHOE KEYS WATER COMPANY, while Syar Cameron Park leads reported TRI pounds among local Form R filers. AQS median AQI 44 / peak 115 in 2024.
Burden score 16/100 (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 El Dorado -- 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 (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 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 | System pop (SDWIS) | 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 | 44 |
| 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 (10)
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.