Carbon, UT
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 Carbon in Utah · Population: 20,446
TRI sites such as Sunnyside Cogeneration Associates; Wildcat Midstream Loadout Facility; Joy Global Mining LLC; SDWIS systems such as PRICE MUNICIPAL CORPORATION; PRICE RIVER WID; HELPER CITY anchor Carbon, UT's EPA extract. Derived burden score 29/100 (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 Carbon include PRICE MUNICIPAL CORPORATION; HELPER CITY; EAST CARBON CITY, while Sunnyside Cogeneration Associates leads reported TRI pounds among local Form R filers. AQS median AQI 44 / peak 112 in 2024.
Burden score 29/100 (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 Carbon -- 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.
Release-over-release change
What changed for Carbon, UT: EPA TRI 2023 reporting year
Same facilities, both years
-19.0%
3 facilities that filed in 2022 and 2023
Whole inventory
-19.0%
72.2 thousand lb → 58.4 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Carbon, UT's total reported releases fell from 72.2 thousand lb in 2022 to 58.4 thousand lb in 2023, based on EPA TRI filings.
- Carbon, UT's off-site transfers rose from 656 lb in 2022 to 934 lb in 2023, based on EPA TRI filings.
- Carbon, UT's land releases fell from 14.8 thousand lb in 2022 to 11.6 thousand lb in 2023, based on EPA TRI filings.
- Carbon, UT's air releases fell from 56.7 thousand lb in 2022 to 45.9 thousand lb in 2023, based on EPA TRI filings.
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%) | 87 | 1 | 112 |
| 2023 | 329 (91%) | 34 | 0 | 70 |
| 2022 | 321 (88%) | 43 | 0 | 74 |
| 2021 | 265 (73%) | 88 | 10 | 155 |
| 2020 | 308 (88%) | 42 | 0 | 93 |
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 Utah, see the EPA's AirNow.gov.
Water Systems (5)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| PRICE MUNICIPAL CORPORATION | 8,867 | 8 |
| PRICE RIVER WID | 5,790 | 0 |
| HELPER CITY | 2,000 | 1 |
| WELLINGTON CITY | 1,676 | 0 |
| EAST CARBON CITY | 1,460 | 6 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Sunnyside Cogeneration Associates | 318.9K lbs |
| 2 | Wildcat Midstream Loadout Facility | 1.9K lbs |
| 3 | Joy Global Mining LLC | 1.0K lbs |
| 4 | Utahamerican Energy Inc - Lila Mine | 0 lbs |
| 5 | Geneva Rock Products-Helper | 0 lbs |
Cities in Carbon (5)
Frequently Asked Questions
What is the environmental risk level in Carbon, Utah? ▼
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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.