Washington, UT
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 Washington in Utah · Population: 189,827
Washington, UT is tracked across three EPA datasets covering 7 Toxics Release Inventory (TRI) facilities, 45 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 34/100 (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 16.7K lbs of reported toxic releases under EPCRA Section 313, while 24 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 108 in 2024, with 76% 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 | 278 (76%) | 86 | 2 | 108 |
| 2023 | 291 (80%) | 74 | 0 | 90 |
| 2022 | 288 (79%) | 77 | 0 | 97 |
| 2021 | 256 (70%) | 106 | 2 | 163 |
| 2020 | 276 (75%) | 87 | 3 | 112 |
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 Utah, see the EPA's AirNow.gov.
Water Systems (45)
| System | Population | Violations |
|---|---|---|
| ST GEORGE CITY WATER SYSTEM | 105,240 | 2 |
| WASHINGTON CITY | 45,865 | 0 |
| HURRICANE CITY | 25,555 | 0 |
| IVINS | 10,465 | 0 |
| SANTA CLARA CITY | 9,000 | 0 |
| HILDALE - COLORADO CITY | 6,100 | 6 |
| BLACK DESERT RESORT WATER SYSTEM | 5,300 | 0 |
| LA VERKIN CITY WATER SYSTEM | 4,500 | 0 |
| ZION CANYON WATER SYSTEM | 3,380 | 0 |
| ENTERPRISE TOWN WATER SYSTEM | 2,200 | 0 |
| TOQUERVILLE TOWN WATER SYSTEM | 1,931 | 0 |
| VIRGIN | 1,512 | 0 |
| DIAMOND VALLEY ACRES | 1,340 | 11 |
| WINCHESTER HILLS WATER CO | 950 | 0 |
| DAMMERON VALLEY WATER WORKS LLC | 885 | 2 |
| LEEDS DOMESTIC WATER USERS ASSOCIATION | 800 | 1 |
| MOUNTAIN SPRINGS WATER CO | 660 | 1 |
| SPRINGDALE TOWN WATER SYSTEM | 529 | 0 |
| VEYO CULINARY WATER ASSN | 500 | 2 |
| DIXIE DEER SSD | 482 | 0 |
| KWU INC | 460 | 1 |
| BIG PLAINS WATER SSD - APPLE VALLEY | 450 | 13 |
| WASHINGTON COUNTY WCD - SAND HOLLOW | 425 | 0 |
| KATHERINE HEIGHTS | 415 | 5 |
| ANGELL SPRINGS SSD | 358 | 1 |
| ROCKVILLE PIPELINE CO | 240 | 2 |
| KINGS ROW ESTATES | 234 | 0 |
| BIG PLAINS WATER SSD - CEDAR POINT | 232 | 68 |
| MOUNT AIR SUBDIVISION | 215 | 3 |
| ESCALANTE VALLEY SCHOOL | 210 | 3 |
| NEW HARMONY WATER SYSTEM | 200 | 2 |
| WASHINGTON COUNTY WCD - COTTAM | 130 | 0 |
| CHIEF SLEEP EASY TP | 124 | 1 |
| HARMONY HEIGHTS WATER COMPANY | 120 | 0 |
| GUNLOCK SPECIAL SERVICE DISTRICT | 118 | 5 |
| PINE VALLEY MT FARMS | 100 | 0 |
| SPRING CREEK MHP | 82 | 0 |
| CANYONS RV RESORT | 80 | 0 |
| NORTH VALLEY RANCHES SUB | 78 | 22 |
| BIG PLAINS WATER SSD - CANAAN RANCH | 62 | 3 |
| EAGLES LANDING | 50 | 1 |
| PINE VALLEY IRRIGATION CO | 50 | 9 |
| CENTRAL CULINARY WATER CO | 35 | 3 |
| WASHINGTON COUNTY WCD - KAYENTA WATER | 0 | 0 |
| WASHINGTON COUNTY WCD - QUAIL LAKE | 0 | 1 |
TRI Facilities (7)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Staker & Parson Cos St George Ready-Mix & Asphalt | 12.8K lbs |
| 2 | Dfa Dairy Brands Ice Cream LLC DBA Meadow Gold Ice Cream | 3.8K lbs |
| 3 | S&s Steel Fabrication | 88 lbs |
| 4 | St George Steel LLC | 58 lbs |
| 5 | Sunroc Corp - Fort Pierce Facility | 1 lbs |
| 6 | Sunroc Corp - Hurricane | 0 lbs |
| 7 | Pilot Thomas Logistics LLC - St George | 0 lbs |
Cities in Washington (2)
Frequently Asked Questions
What is the environmental risk level in Washington, Utah? ▼
Are there Superfund sites in Washington? ▼
How many toxic release facilities are in Washington? ▼
What is the air quality in Washington? ▼
Is the drinking water safe in Washington? ▼
What environmental agencies cover Washington? ▼
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.