Duchesne, UT

Moderate Risk (41/100)

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 Duchesne in Utah · Population: 19,932

Duchesne, UT is tracked across three EPA datasets covering 4 Toxics Release Inventory (TRI) facilities, 17 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 41/100 (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 3.5M lbs of reported toxic releases under EPCRA Section 313, while 9 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 47 and a peak AQI of 165 in 2024, with 61% 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.

Population
19,932
TRI Facilities
4
Water Systems
17
Superfund Sites
0
Total Releases
3.5M lbs

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 225 (61%) 136 3 165
2023 180 (49%) 151 22 215
2022 223 (61%) 138 3 177
2021 220 (60%) 137 7 155
2020 239 (65%) 122 5 125
2024 Good Air Quality: 61% of days
Unhealthy days: 5
Median AQI: 47

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 (17)

System Population Violations
ROOSEVELT CITY WATER SYSTEM 8,000 2
DUCHESNE COUNTY UPPER COUNTRY WID 2,100 0
DUCHESNE WATER SYSTEM 2,000 0
JOHNSON WATER DISTRICT 1,895 4
FRUITLAND WATER SSD 1,162 4
MYTON CITY 1,075 0
BALLARD WATER IMPROVEMENT DISTRICT 1,005 0
EAST DUCHESNE CULINARY WID 1,000 0
PINION FOREST SSD 640 0
NEOLA WATER AND SEWER DISTRICT 490 2
CEDARVIEW MONTWELL SSD 445 0
HANNA WATER & SEWER IMPROVEMENT DISTRICT 405 2
TABIONA TOWN WATER SYSTEM 380 1
SOUTH DUCHESNE CULINARY WATER 286 3
JOHNSON WATER DISTRICT - INDEPENDENCE 170 2
RED CREEK RANCHES 47 1
DUCHESNE CO WCD 0 0

TRI Facilities (4)

# Facility Total Releases
1 Bluebell Gas Plant 1.9M lbs
2 Altamont Gas Plant-Kinder Morgan 1.6M lbs
3 Multi-Chem Group Roosevelt Ut Facility 40.2K lbs
4 Harmston Pit 6 lbs

Cities in Duchesne (2)

Roosevelt
Pop: -
3 facilities · 2 water
Altamont
Pop: -
1 facilities · 2 water

Frequently Asked Questions

What is the environmental risk level in Duchesne, Utah?
Duchesne, UT has an environmental risk score of 41/100 (Moderate Risk), based on 4 TRI facilities, 0 Superfund sites, and 17 water systems on record. 9 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Duchesne?
No Superfund National Priorities List (NPL) sites are currently registered in Duchesne, UT in the EPA database.
How many toxic release facilities are in Duchesne?
Duchesne, UT has 4 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 3.5M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Duchesne?
In 2024, Duchesne, UT recorded a median AQI of 47 and a peak AQI of 165. 61% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Duchesne?
Duchesne, UT has 17 EPA-regulated water systems. 9 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Duchesne?
Environmental compliance in Duchesne, Utah is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Utah state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

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.

Related

Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial