Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DCP MIDSTREAM LP/OKARCHE PLANT
6 MI. W OF OKARCHE ON 248TH ST NW & N ON N2760 RD 0.5 MI, OKARCHE, OK, 73762
Parent company: PHILLIPS 66
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 | Methanol | Cyclohexane | Toluene | Xylene (mixed isomers) | Total (lbs) |
| 2024 | 500 | 72 | 220 | 136 | 66 | 1,052 |
| 2023 | 2,410 | 690 | 610 | 200 | — | 3,910 |
| 2022 | 2,410 | 646 | 490 | — | — | 3,546 |
▎ 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.