Washoe, NV
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 Washoe in Nevada · Population: 491,770
Washoe, NV is tracked across three EPA datasets covering 24 Toxics Release Inventory (TRI) facilities, 27 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 49/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 116.9K 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 50 and a peak AQI of 119 in 2024, with 51% 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 | 188 (51%) | 174 | 4 | 119 |
| 2023 | 191 (52%) | 174 | 0 | 97 |
| 2022 | 180 (49%) | 176 | 1 | 259 |
| 2021 | 174 (48%) | 156 | 16 | 333 |
| 2020 | 193 (53%) | 149 | 11 | 265 |
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 Nevada, see the EPA's AirNow.gov.
Water Systems (27)
| System | Population | Violations |
|---|---|---|
| SUN VALLEY GID | 17,000 | 0 |
| GREAT BASIN WATER CO COLD SPRINGS | 9,650 | 2 |
| INCLINE VILLAGE GID | 9,313 | 0 |
| GREAT BASIN WATER CO SPANISH SPRINGS | 1,460 | 1 |
| STEAMBOAT SPRINGS WATERWORKS INC | 998 | 2 |
| OLYMPIC VALLEY MWC | 756 | 0 |
| Hungry Valley (Reno-Sparks) | 620 | 0 |
| VERDI MEADOWS UTILITY COMPANY INC | 510 | 0 |
| Reno Sparks Indian Colony | 457 | 0 |
| PINEVIEW ESTATES | 450 | 1 |
| RUBY DOME HOLDINGS DBA ELKO RV PARK | 357 | 0 |
| EMPIRE MINING COMPANY | 350 | 0 |
| GRANDVIEW TERRACE WATER DISTRICT | 328 | 1 |
| DUTCHMAN ACRES | 260 | 2 |
| SAGE VALLEY MHP LLC | 188 | 1 |
| GERLACH GID | 180 | 1 |
| SAGE VALLEY PARK ANNEX | 130 | 0 |
| SILVER KNOLLS MUTUAL WATER COMPANY | 120 | 55 |
| RIO VISTA NV LLC | 65 | 0 |
| PINE RIDGE NO 2 | 61 | 1 |
| KE TA MOBILE HOME PARK | 60 | 0 |
| SUTCLIFFE MOBILE PARK | 60 | 13 |
| ROSEMOUNT WATER CO | 54 | 205 |
| LAKECREST MOBILE COURT | 52 | 2 |
| PINE RIDGE MHP NO 1 | 51 | 1 |
| MOUNT ROSE BOWL PROPERTY OWNERS WATER CO | 40 | 4 |
| LARK MOBILE HOME PARK | 30 | 0 |
TRI Facilities (24)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Trivium Packaging USA Inc | 43.2K lbs |
| 2 | Lennox Aes-Reno | 25.9K lbs |
| 3 | Highline Warren - Sparks | 13.3K lbs |
| 4 | Lsc Communications / Reno N | 11.0K lbs |
| 5 | 3D Concrete | 9.4K lbs |
| 6 | Prototype Concepts Inc | 4.3K lbs |
| 7 | Cold Chain Technologies LLC | 2.2K lbs |
| 8 | Trademark | 2.2K lbs |
| 9 | Weber Metals Inc. | 2.0K lbs |
| 10 | Elite Spice Inc. | 1.6K lbs |
| 11 | Emerson Automation Solutions Final Control US LP | 1.3K lbs |
| 12 | Chevron Phillips Chemical Co Performance Pipe Div | 179 lbs |
| 13 | Garlock Printing & Converting West | 128 lbs |
| 14 | Stead Airanker Base Blm | 93 lbs |
| 15 | Model Dairy | 70 lbs |
| 16 | Jensen Precast | 7 lbs |
| 17 | Western Nevada Materials - Spanish Springs | 0 lbs |
| 18 | Rinker Reno Pipe | 0 lbs |
| 19 | Colorite Plastics Co | 0 lbs |
| 20 | Dura-Line | 0 lbs |
| 21 | Flyers Energy #3001 | 0 lbs |
| 22 | Vdm Metals USA LLC | 0 lbs |
| 23 | Veka West Inc. | 0 lbs |
| 24 | Cemex Construction Materials LP - Reno Rm Plant | 0 lbs |
Cities in Washoe (3)
Frequently Asked Questions
What is the environmental risk level in Washoe, Nevada? ▼
Are there Superfund sites in Washoe? ▼
How many toxic release facilities are in Washoe? ▼
What is the air quality in Washoe? ▼
Is the drinking water safe in Washoe? ▼
What environmental agencies cover Washoe? ▼
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.