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NPDES permit IN0025658 · Major POTW · effective, expires 2028-06-30 · EPA's file as of 2026-09-19

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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

8values over a limit
0required values missing, on 0 form(s)
1of 59 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (7), Toxicity [chronic], Pimephales promelas [Fathead Minnow] (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (74)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DLYAVMIN >= 6 mL/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Oxygen, dissolved [DO]DLYAVMIN >= 5 mg/L Jan, Feb, Mar, Apr, Dec
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 25 mg/L Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMO AVG <= 20 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 40 mg/L Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMX WK AV <= 30 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMO AVG <= 1189 lb/d Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMO AVG <= 951 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 1903 lb/d Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMX WK AV <= 1427 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.26 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 1.82 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 1.89 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 2.73 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 59.9 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 86.6 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 89.9 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 129.9 lb/d Jan, Feb, Mar, Apr, Dec
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jun
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jul
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic Jun
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic Jul
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute Jun
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute Jul
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic Jun
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic Jul
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 20 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 30 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 1189 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 951 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1903 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1427 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Flow, totalMO TOTAL report only all year
003DurationMO TOTAL report only all year
003Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
003Precipitation, monthly accumulationMO TOTAL report only all year
003Discharge event observation [Visual Monitoring]MO TOTAL report only all year
006DurationMO TOTAL report only all year
006Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
006Precipitation, monthly accumulationMO TOTAL report only all year
006Discharge event observation [Visual Monitoring]MO TOTAL report only all year
009DurationMO TOTAL report only all year
009Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
009Precipitation, monthly accumulationMO TOTAL report only all year
009Discharge event observation [Visual Monitoring]MO TOTAL report only all year
010pHDAILY MN report only all year
010pHDAILY MX report only all year
010Solids, total suspendedMO AVG report only all year
010Solids, total suspendedDAILY MX report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
010E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
010BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
010BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
010Flow, totalMO TOTAL report only all year
PRTCopper, dry weightVALUE report only Jun, Dec
PRTCadmium, dry weightVALUE report only Jun, Dec
PRTMolybdenum, sludge, total, dry weight [as Mo]VALUE report only Jun, Dec
PRTZinc, sludge, total, dry weight [as Zn]VALUE report only Jun, Dec
PRTLead, sludge, total, dry weight [as Pb]VALUE report only Jun, Dec
PRTNickel, sludge, total, dry weight [as Ni]VALUE report only Jun, Dec
PRTMercury, sludge, total, dry weight [as Hg]VALUE report only Jun, Dec

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