Koch Fertilizer Enid, LLC

NPDES permit OK0021024 · Major NON-POTW · effective, expires 2030-04-30 · 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 71 forms filed late

Last period with anything received: 2026-07-31.

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 (94)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001Oxygen, dissolved [DO]MO MIN report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 40 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMO AVG <= 744 lb/d all year
001Solids, total suspendedDAILY MX <= 1116 lb/d all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseMO AVG <= 186 lb/d all year
001Oil & GreaseDAILY MX <= 279 lb/d all year
001Nitrogen, organic total [as N]MO AVG <= 261 mg/L all year
001Nitrogen, organic total [as N]DAILY MX <= 488 mg/L all year
001Nitrogen, organic total [as N]MO AVG <= 4855 lb/d all year
001Nitrogen, organic total [as N]DAILY MX <= 9079 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.14 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 9.86 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 77 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 183 lb/d all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= 2.4 mg/L all year
001Phosphorus, total [as P]DAILY MX <= 3.8 mg/L all year
001Phosphorus, total [as P]MO AVG <= 44.6 lb/d all year
001Phosphorus, total [as P]DAILY MX <= 70.7 lb/d all year
001Cyanide, total [as CN]MO AVG report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, total [as CN]MO AVG report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Selenium, total [as Se]MO AVG report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]MO AVG report only all year
001Selenium, total [as Se]DAILY MX report only 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
001Solids, total dissolved- 180 deg. CMO AVG <= 4500 mg/L all year
001Solids, total dissolved- 180 deg. CDAILY MX <= 7000 mg/L all year
001Solids, total dissolved- 180 deg. CMO AVG <= 83692 lb/d all year
001Solids, total dissolved- 180 deg. CDAILY MX <= 130187 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 22.5 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 279 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 418 lb/d all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Oil & GreaseMO AVG <= 10 mg/L all year
002Oil & GreaseDAILY MX <= 15 mg/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
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseMO AVG <= 10 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L 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
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseMO AVG <= 10 mg/L all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
107Phosphorus, total [as P]MO AVG report only all year
107Phosphorus, total [as P]DAILY MX report only all year
107Flow, in conduit or thru treatment plantMO AVG report only all year
107Flow, in conduit or thru treatment plantDAILY MX report only all year
108Flow, in conduit or thru treatment plantMO AVG report only all year
108Flow, in conduit or thru treatment plantDAILY MX report only all year
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 - retest #17 DA MIN report only all year
TX1Whole effluent toxicity - retest #27 DA MIN report only all year
TX1Whole Effluent Toxicity [WET] - D. magnaMINIMUM >= 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
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1%Mortality Static Renewal 7Day Chronic Pimephales Promelas7 DA MIN report only all year
TX1% Mortality 21 Day Chronic Daphnia MagnaMINIMUM report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Pass/Fail Survival 21 Day Chronic Daphnia MagnaMINIMUM report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1% Coefficient Of Variation 21 Day Chronic Daphnia MagnaMINIMUM report only all year
TX1LOEC Lethal Survival Static Renewal 21 Day Chronic Daphnia magnaMINIMUM report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 21 Day Chronic Daphnia magnaMINIMUM report only all year
TX1Pass/Fail Reproduction 21 Day Chronic Daphnia MagnaMINIMUM 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