Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HICKORY HILLS GAS PLANT
8636 HIGHWAY 270, STUART, OK, 74570
Parent company: TARGA RESOURCES 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 | Formaldehyde | Benzene | n-Hexane | Toluene | Xylene (mixed isomers) | Total (lbs) |
| 2024 | — | 481 | 394 | 541 | 310 | 1,730 |
| 2023 | — | — | 190 | — | — | 190 |
| 2022 | 13,600 | 250 | — | — | — | 13,852 |
▎ 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.