Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
IRONHORSE COMPLEX
3646 E. FIDLAR ROAD, VERNAL, UT, 84078
Parent company: MARATHON PETROLEUM CORP
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | n-Hexane | Toluene | Xylene (mixed isomers) | Benzene | Ethylbenzene | Total (lbs) |
| 2024 | 1,364 | 386 | 187 | 104 | 85 | 2,126 |
| 2023 | 1,400 | 317 | 154 | 92 | 82 | 2,084 |
| 2022 | 3,696 | 1,860 | 1,454 | 600 | 186 | 7,812 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.