Darling Ingredients Inc

NPDES permit KY0111023 · Minor NON-POTW · effective, expires 2030-03-31 · 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
20required values missing, on 2 form(s)
0of 38 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among KY permits in EPA's filings — check your permit).

Limits in force (80)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX <= 31.7 deg C all year
001Temperature, water deg. centigradeDAILY MX <= 31.7 deg C all year
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L all year
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 137 lb/d all year
001Solids, total suspendedMO AVG <= 137 lb/d all year
001Solids, total suspendedDAILY MX <= 275 lb/d all year
001Solids, total suspendedDAILY MX <= 275 lb/d all year
001Oil & GreaseMO AVG <= 61.8 lb/d all year
001Oil & GreaseMO AVG <= 61.8 lb/d all year
001Oil & GreaseDAILY MX <= 123 lb/d all year
001Oil & GreaseDAILY MX <= 123 lb/d all year
001Nitrogen, total [as N]MO AVG <= 134 mg/L all year
001Nitrogen, total [as N]MO AVG <= 134 mg/L all year
001Nitrogen, total [as N]DAILY MX <= 194 mg/L all year
001Nitrogen, total [as N]DAILY MX <= 194 mg/L all year
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 2 mg/L May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 4 mg/L all year
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 4 mg/L May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 10 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 6 mg/L all year
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 6 mg/L May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 15 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 84 lb/d May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 84 lb/d all year
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 84 lb/d May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayMO AVG <= 84 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 168 lb/d May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 168 lb/d all year
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 168 lb/d May, Jun, Jul, Aug, Sep, Oct
001Ammonia nitrogen, total, [as N] 30 dayDAILY MX <= 168 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Fecal coliform, MPN, EC med, 44.5 CMO AVG report only all year
001Fecal coliform, MPN, EC med, 44.5 CMO AVG report only all year
001Fecal coliform, MPN, EC med, 44.5 CDAILY MX <= 400 #/100mL all year
001Fecal coliform, MPN, EC med, 44.5 CDAILY MX <= 400 #/100mL all year
001Flow, in conduit or thru treatment plantMO AVG 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
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L all year
001Biochemical oxygen demand-5MO AVG <= 108 lb/d all year
001Biochemical oxygen demand-5MO AVG <= 108 lb/d all year
001Biochemical oxygen demand-5DAILY MX <= 216 lb/d all year
001Biochemical oxygen demand-5DAILY MX <= 216 lb/d all year
BF1pHMINIMUM >= 6 SU all year
BF1pHDAILY MX <= 9 SU all year
BF1Solids, total suspendedMO AVG report only all year
BF1Solids, total suspendedDAILY MX report only all year
BF1Oil & GreaseMO AVG report only all year
BF1Oil & GreaseDAILY MX report only all year
BF1Flow, in conduit or thru treatment plantMO AVG report only all year
BF1Flow, in conduit or thru treatment plantDAILY MX report only all year
BF2pHMINIMUM >= 6 SU all year
BF2pHDAILY MX <= 9 SU all year
BF2Solids, total suspendedMO AVG report only all year
BF2Solids, total suspendedDAILY MX report only all year
BF2Oil & GreaseMO AVG report only all year
BF2Oil & GreaseDAILY MX report only all year
BF2Flow, in conduit or thru treatment plantMO AVG report only all year
BF2Flow, in conduit or thru treatment plantDAILY MX report only all year
RN1pHMINIMUM >= 6 SU all year
RN1pHDAILY MX <= 9 SU all year
RN1Solids, total suspendedMO AVG report only all year
RN1Solids, total suspendedDAILY MX report only all year
RN1Oil & GreaseMO AVG report only all year
RN1Oil & GreaseDAILY MX report only all year
RN1Flow, in conduit or thru treatment plantMO AVG report only all year
RN1Flow, in conduit or thru treatment plantDAILY MX report only all year
RN1E. coli30DA GEO report only all year
RN1E. coli7 DA GEO 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