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NPDES permit IN0023884 · Major POTW · effective, expires 2027-05-31 · 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

1values over a limit
0required values missing, on 0 form(s)
0of 19 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (1).

Reporting

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

Limits in force (63)

OutfallParameterStatisticLimitMonths
100Oxygen, dissolved [DO]DLYAVMIN >= 6 mg/L all year
100pHDAILY MN >= 6 SU all year
100pHDAILY MX <= 9 SU all year
100Solids, total suspendedMO AVG <= 30 mg/L all year
100Solids, total suspendedMX WK AV <= 45 mg/L all year
100Solids, total suspendedMO AVG <= 3004 lb/d all year
100Solids, total suspendedMX WK AV <= 4506 lb/d all year
100Nitrogen, total [as N]MO AVG report only all year
100Nitrogen, total [as N]MO AVG report only all year
100Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
100Nitrogen, ammonia total [as N]MO AVG <= 3 mg/L Jan, Feb, Mar, Apr, Dec
100Nitrogen, ammonia total [as N]MX WK AV <= 2.3 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
100Nitrogen, ammonia total [as N]MX WK AV <= 4.5 mg/L Jan, Feb, Mar, Apr, Dec
100Nitrogen, ammonia total [as N]MO AVG <= 150 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
100Nitrogen, ammonia total [as N]MO AVG <= 300 lb/d Jan, Feb, Mar, Apr, Dec
100Nitrogen, ammonia total [as N]MX WK AV <= 230 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
100Nitrogen, ammonia total [as N]MX WK AV <= 451 lb/d Jan, Feb, Mar, Apr, Dec
100Phosphorus, total [as P]MO AVG <= 1 mg/L all year
100Phosphorus, total [as P]MO AVG report only all year
100Cyanide, free [as free]DAILY MX report only Mar, Jun, Sep, Dec
100Cyanide, free [as free]DAILY MX report only Mar, Jun, Sep, Dec
100Nickel, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Nickel, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Silver total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Silver total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Zinc, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Zinc, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Cadmium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Cadmium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Lead, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Lead, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Chromium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Chromium, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
100Copper, total recoverableMO AVG <= .021 mg/L all year
100Copper, total recoverableDAILY MX <= .042 mg/L all year
100Copper, total recoverableMO AVG report only all year
100Copper, total recoverableDAILY MX report only all year
100Flow, in conduit or thru treatment plantMO AVG report only all year
100Chlorine, total residualMO AVG < .06 mg/L all year
100Chlorine, total residualDAILY MX < .06 mg/L all year
100E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
100E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
100Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute May, Nov
100Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jun, Dec
100Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jun, Dec
100Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic May, Nov
100Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic Jun, Dec
100Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic Jun, Dec
100Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute May, Nov
100Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute Jun, Dec
100Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute Jun, Dec
100Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic May, Nov
100Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic Jun, Dec
100Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic Jun, Dec
100BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L Jan, Feb, Mar, Apr, Dec
100BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
100BOD, carbonaceous [5 day, 20 C]MX WK AV <= 23 mg/L Jan, Feb, Mar, Apr, Dec
100BOD, carbonaceous [5 day, 20 C]MX WK AV <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
100BOD, carbonaceous [5 day, 20 C]MO AVG <= 1502 lb/d Jan, Feb, Mar, Apr, Dec
100BOD, carbonaceous [5 day, 20 C]MO AVG <= 1001 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
100BOD, carbonaceous [5 day, 20 C]MX WK AV <= 2303 lb/d Jan, Feb, Mar, Apr, Dec
100BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1502 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
100Flow, totalMO TOTAL 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