Year-over-year total releases
Reported on-site TRI releases in pounds, 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 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.
| Year | n-Hexane | Methanol | Cyclohexane | Toluene | Xylene (mixed isomers) | Total |
|---|---|---|---|---|---|---|
| 2024 | 500 | 72 | 220 | 136 | 66 | 1,052 |
| 2023 | 2,410 | 690 | 610 | 200 | — | 3,910 |
| 2022 | 2,410 | 646 | 490 | — | — | 3,546 |