Wynnewood Refining Co.

NPDES permit OK0000825 · Major NON-POTW · effective, expires 2028-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

0values over a limit
0required values missing, on 0 form(s)
0of 37 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (96)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 35.5 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 64 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 504 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 908 lb/d all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 248 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 479 mg/L all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 3510 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 6790 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 404 lb/d all year
001Solids, total suspendedDAILY MX <= 633 lb/d all year
001Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 150 lb/d all year
001Oil and grease, hexane extr methodDAILY MX <= 280 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 17.7 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 38.9 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 251 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 551 lb/d all year
001Sulfide, total [as S]MO AVG <= .17 mg/L all year
001Sulfide, total [as S]DAILY MX <= .38 mg/L all year
001Sulfide, total [as S]MO AVG <= 2.4 lb/d all year
001Sulfide, total [as S]DAILY MX <= 5.4 lb/d all year
001Phenolics, total recoverableMO AVG <= .22 mg/L all year
001Phenolics, total recoverableDAILY MX <= .48 mg/L all year
001Phenolics, total recoverableMO AVG <= 3.1 lb/d all year
001Phenolics, total recoverableDAILY MX <= 6.8 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
001E. coliGEO MEAN <= 126 CFU/100mL May, Jun, Jul, Aug, Sep
001E. coliDAILY MX <= 406 CFU/100mL May, Jun, Jul, Aug, Sep
002Oxygen demand, chem. [high level] [COD]MO AVG report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 120 mg/L all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil and grease, hexane extr methodMO AVG report only all year
002Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
002Lead, total [as Pb]MO AVG <= 39 ug/L all year
002Lead, total [as Pb]DAILY MX <= 71.2 ug/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
008BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
008BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
008BOD, 5-day, 20 deg. CMO AVG <= 341 lb/d all year
008BOD, 5-day, 20 deg. CDAILY MX <= 615 lb/d all year
008Oxygen demand, chem. [high level] [COD]MO AVG <= 167 mg/L all year
008Oxygen demand, chem. [high level] [COD]DAILY MX <= 324 mg/L all year
008Oxygen demand, chem. [high level] [COD]MO AVG <= 2370 lb/d all year
008Oxygen demand, chem. [high level] [COD]DAILY MX <= 4600 lb/d all year
008pHMINIMUM >= 6.5 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, total suspendedMO AVG <= 30 mg/L all year
008Solids, total suspendedDAILY MX <= 45 mg/L all year
008Solids, total suspendedMO AVG <= 274 lb/d all year
008Solids, total suspendedDAILY MX <= 429 lb/d all year
008Oil and grease, hexane extr methodMO AVG <= 7 mg/L all year
008Oil and grease, hexane extr methodDAILY MX <= 13 mg/L all year
008Oil and grease, hexane extr methodMO AVG <= 100 lb/d all year
008Oil and grease, hexane extr methodDAILY MX <= 190 lb/d all year
008Nitrogen, ammonia total [as N]MO AVG <= 11.4 mg/L all year
008Nitrogen, ammonia total [as N]DAILY MX <= 25.1 mg/L all year
008Nitrogen, ammonia total [as N]MO AVG <= 162 lb/d all year
008Nitrogen, ammonia total [as N]DAILY MX <= 356 lb/d all year
008Sulfide, total [as S]MO AVG <= .11 mg/L all year
008Sulfide, total [as S]DAILY MX <= .25 mg/L all year
008Sulfide, total [as S]MO AVG <= 1.6 lb/d all year
008Sulfide, total [as S]DAILY MX <= 3.5 lb/d all year
008Phenolics, total recoverableMO AVG <= .16 mg/L all year
008Phenolics, total recoverableDAILY MX <= .32 mg/L all year
008Phenolics, total recoverableMO AVG <= 2.2 lb/d all year
008Phenolics, total recoverableDAILY MX <= 4.6 lb/d all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008E. coliGEO MEAN <= 126 CFU/100mL May, Jun, Jul, Aug, Sep
008E. coliDAILY MX <= 406 CFU/100mL May, Jun, Jul, Aug, Sep
TX1pHDAILY MN report only all year
TX1pHDAILY MX report only all year
TX1Nitrogen, ammonia total [as N]DAILY MN report only all year
TX1Nitrogen, ammonia total [as N]MO AVG report only all year
TX1Nitrogen, ammonia total [as N]DAILY MX report only all year
TX1Whole Effluent Toxicity [WET] - D. pulex48HR MIN >= 100 % all year
TX1Whole Effluent Toxicity [WET] - P. promelas48HR MIN >= 100 % all year
TX1Solids, total dissolved- 180 deg. CDAILY MN report only all year
TX1Solids, total dissolved- 180 deg. CMO AVG report only all year
TX1Solids, total dissolved- 180 deg. CDAILY MX report only all year
TX1LC50 Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
TX1LC50 Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX1LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex48HR MIN report only all year
TX1LC50 Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX1%Mortality Static Renewal 48Hr Acute Daphnia Pulex48HR MIN report only all year
TX1% Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C48HR MIN report only 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