Nevada, 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 Nevada in California · Population: 102,452
TRI sites such as Truckee North Tahoe Materials Ready Mix Plant; SDWIS systems such as TRUCKEE-DONNER PUD, MAIN; NEVADA ID - E. GEORGE, BANNER MOUNTAIN; NORTHSTAR C.S.D.; NPL sites such as Lava Cap Mine anchor Nevada, CA's EPA extract. Derived burden score 21/100 (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 Nevada include CITY OF NEVADA CITY; WASHINGTON WATER DISTRICT; ANANDA VILLAGE, while Truckee North Tahoe Materials Ready Mix Plant leads reported TRI pounds among local Form R filers. AQS median AQI 36 / peak 132 in 2024.
Burden score 21/100 (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 Nevada -- 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 | 313 (86%) | 50 | 2 | 132 |
| 2023 | 282 (78%) | 81 | 0 | 97 |
| 2022 | 185 (51%) | 161 | 11 | 293 |
| 2021 | 183 (50%) | 129 | 34 | 326 |
| 2020 | 223 (61%) | 111 | 15 | 277 |
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 (21)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| TRUCKEE-DONNER PUD, MAIN | 36,730 | 0 |
| NEVADA ID - E. GEORGE, BANNER MOUNTAIN | 17,154 | 0 |
| NORTHSTAR C.S.D. | 15,452 | 0 |
| NEVADA ID - LOMA RICA | 14,072 | 0 |
| NEVADA ID - LAKE WILDWOOD | 9,108 | 0 |
| NEVADA ID - LAKE OF PINES | 6,870 | 0 |
| NEVADA ID - NORTH AUBURN | 6,870 | 0 |
| CITY OF GRASS VALLEY | 4,947 | 0 |
| NORTHSTAR CSD - MARTIS VALLEY | 4,493 | 0 |
| CITY OF NEVADA CITY | 3,148 | 3 |
| SIERRA LAKES COUNTY WATER DIST | 824 | 0 |
| WASHINGTON WATER DISTRICT | 330 | 2 |
| CREEKSIDE VILLAGE | 300 | 0 |
| SIERRA CITY WATER WORKS, INC. | 250 | 0 |
| ANANDA VILLAGE | 226 | 3 |
| NEVADA ID - SMARTSVILLE | 122 | 0 |
| SIERRA ESTATES MUTUAL WATER COMPANY | 100 | 2 |
| TRUCKEE-DONNER PUD - HIRSCHDALE | 85 | 0 |
| WASHINGTON RIDGE C.C. | 62 | 0 |
| CHRISTIAN ENCOUNTER MINISTRIES | 35 | 0 |
| YULICA | 25 | 3 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Truckee North Tahoe Materials Ready Mix Plant | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Lava Cap Mine | NPL Site | 33.66 |
Cities in Nevada (4)
Frequently Asked Questions
What is the environmental risk level in Nevada, California? ▼
Are there Superfund sites in Nevada? ▼
How many toxic release facilities are in Nevada? ▼
What is the air quality in Nevada? ▼
Is the drinking water safe in Nevada? ▼
What environmental agencies cover Nevada? ▼
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.