DCP Midstream, LP Okarche Gas Plant

NPDES permit OK0036994 · Minor NON-POTW · effective, expires 2031-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

3values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (2), Zinc, total [as Zn] (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among OK permits in EPA's filings — check your permit).

Limits in force (26)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 38.36 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspendedDAILY MX <= 8.63 lb/d all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .19 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualINST MAX <= .099 mg/L all year
003Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
003Oxygen demand, chem. [high level] [COD]DAILY MX <= 38.36 lb/d all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Solids, total suspendedDAILY MX <= 8.63 lb/d all year
003Phosphorus, total [as P]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
003Zinc, total [as Zn]DAILY MX <= .19 lb/d all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chlorine, total residualINST MAX <= .099 mg/L all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states