Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CARTER CREEK GAS PLANT
35 MI NNE EVANSTON, EVANSTON, WY, 82930
Parent company: HILCORP ENERGY CO
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 | Hydrogen sulfide | Benzene | Total (lbs) | |||
| 2024 | 28,766 | 96 | 28,862 | |||
| 2023 | 83,767 | 101 | 83,868 | |||
| 2022 | 94,890 | 79 | 94,969 | |||
▎ 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.