NPDES permit IN0025631 · Major POTW · effective, expires 2029-06-30 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31.
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).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 007 | Duration | MO TOTAL | report only | all year |
| 007 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 007 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 007 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 012 | Duration | MO TOTAL | report only | all year |
| 012 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 012 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 012 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 015 | Duration | MO TOTAL | report only | all year |
| 015 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 015 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 015 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 020 | Oxygen, dissolved [DO] | DLYAVMIN | >= 6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Oxygen, dissolved [DO] | DLYAVMIN | >= 5 mg/L | Jan, Feb, Mar, Apr, Dec |
| 020 | pH | DAILY MN | >= 6 SU | all year |
| 020 | pH | DAILY MX | <= 9 SU | all year |
| 020 | Solids, total suspended | MO AVG | <= 15 mg/L | Jan, Feb, Mar, Apr, Dec |
| 020 | Solids, total suspended | MO AVG | <= 12 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Solids, total suspended | MX WK AV | <= 23 mg/L | Jan, Feb, Mar, Apr, Dec |
| 020 | Solids, total suspended | MX WK AV | <= 18 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Solids, total suspended | MO AVG | <= 3380 lb/d | Jan, Feb, Mar, Apr, Dec |
| 020 | Solids, total suspended | MO AVG | <= 2704 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Solids, total suspended | MX WK AV | <= 5182 lb/d | Jan, Feb, Mar, Apr, Dec |
| 020 | Solids, total suspended | MX WK AV | <= 4056 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 020 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 020 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.5 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Nitrogen, ammonia total [as N] | MO AVG | <= 2.2 mg/L | Jan, Feb, Mar, Apr, Dec |
| 020 | Nitrogen, ammonia total [as N] | MX WK AV | <= 2.3 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Nitrogen, ammonia total [as N] | MX WK AV | <= 3.3 mg/L | Jan, Feb, Mar, Apr, Dec |
| 020 | Nitrogen, ammonia total [as N] | MO AVG | <= 338 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Nitrogen, ammonia total [as N] | MO AVG | <= 496 lb/d | Jan, Feb, Mar, Apr, Dec |
| 020 | Nitrogen, ammonia total [as N] | MX WK AV | <= 518 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 020 | Nitrogen, ammonia total [as N] | MX WK AV | <= 744 lb/d | Jan, Feb, Mar, Apr, Dec |
| 020 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 020 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 020 | Cyanide, free [as free] | DAILY MX | report only | all year |
| 020 | Cyanide, free [as free] | DAILY MX | report only | all year |
| 020 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Silver total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Silver total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Cadmium, total recoverable | MO AVG | <= .0017 mg/L | all year |
| 020 | Cadmium, total recoverable | DAILY MX | <= .0034 mg/L | all year |
| 020 | Cadmium, total recoverable | MO AVG | report only | all year |
| 020 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 020 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 020 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 020 | E. coli, colony forming units [CFU] | MO GEO | <= 125 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 020 | E. coli, colony forming units [CFU] | DAILY MX | <= 235 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 020 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 8 mg/L | all year |
| 020 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 12 mg/L | all year |
| 020 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1803 lb/d | all year |
| 020 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 2704 lb/d | all year |
| 020 | Flow, total | MO TOTAL | report only | all year |
| 021 | Oxygen, dissolved [DO] | DLYAVMIN | >= 6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Oxygen, dissolved [DO] | DLYAVMIN | >= 5 mg/L | Jan, Feb, Mar, Apr, Dec |
| 021 | pH | DAILY MN | >= 6 SU | all year |
| 021 | pH | DAILY MX | <= 9 SU | all year |
| 021 | Solids, total suspended | MO AVG | <= 15 mg/L | Jan, Feb, Mar, Apr, Dec |
| 021 | Solids, total suspended | MO AVG | <= 12 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Solids, total suspended | MX WK AV | <= 23 mg/L | Jan, Feb, Mar, Apr, Dec |
| 021 | Solids, total suspended | MX WK AV | <= 18 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Solids, total suspended | MO AVG | <= 3380 lb/d | Jan, Feb, Mar, Apr, Dec |
| 021 | Solids, total suspended | MO AVG | <= 2704 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Solids, total suspended | MX WK AV | <= 5182 lb/d | Jan, Feb, Mar, Apr, Dec |
| 021 | Solids, total suspended | MX WK AV | <= 4056 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 021 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 021 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.5 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Nitrogen, ammonia total [as N] | MO AVG | <= 2.2 mg/L | Jan, Feb, Mar, Apr, Dec |
| 021 | Nitrogen, ammonia total [as N] | MX WK AV | <= 2.3 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Nitrogen, ammonia total [as N] | MX WK AV | <= 3.3 mg/L | Jan, Feb, Mar, Apr, Dec |
| 021 | Nitrogen, ammonia total [as N] | MO AVG | <= 338 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Nitrogen, ammonia total [as N] | MO AVG | <= 496 lb/d | Jan, Feb, Mar, Apr, Dec |
| 021 | Nitrogen, ammonia total [as N] | MX WK AV | <= 518 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 021 | Nitrogen, ammonia total [as N] | MX WK AV | <= 744 lb/d | Jan, Feb, Mar, Apr, Dec |
| 021 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 021 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 021 | Cyanide, free [as free] | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Cyanide, free [as free] | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Silver total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Silver total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Cadmium, total recoverable | MO AVG | <= .0017 mg/L | all year |
| 021 | Cadmium, total recoverable | DAILY MX | <= .0034 mg/L | all year |
| 021 | Cadmium, total recoverable | MO AVG | report only | all year |
| 021 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 021 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 021 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 021 | E. coli, colony forming units [CFU] | MO GEO | <= 125 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 021 | E. coli, colony forming units [CFU] | DAILY MX | <= 235 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 021 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jun, Dec |
| 021 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jan, Jul |
| 021 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jan, Jul |
| 021 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1 tox chronic (alert) | Jun, Dec |
| 021 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1 tox chronic (alert) | Jan, Jul |
| 021 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1 tox chronic (alert) | Jan, Jul |
| 021 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jun, Dec |
| 021 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jan, Jul |
| 021 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jan, Jul |
| 021 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox chronic (alert) | Jun, Dec |
| 021 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox chronic (alert) | Jan, Jul |
| 021 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox chronic (alert) | Jan, Jul |
| 021 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 8 mg/L | all year |
| 021 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 12 mg/L | all year |
| 021 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1803 lb/d | all year |
| 021 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 2704 lb/d | all year |
| 021 | Flow, total | MO TOTAL | report only | all year |
| 021 | Static 24HR Acute Selenastrum capricoruntum | MAXIMUM | report only (alert) | Jun, Dec |
| 021 | Static 24HR Acute Selenastrum capricoruntum | MAXIMUM | report only (alert) | Jan, Jul |
| 021 | Static 24HR Acute Selenastrum capricoruntum | MAXIMUM | report only (alert) | Jan, Jul |
| 022 | Duration | MO TOTAL | report only | all year |
| 022 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 022 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 022 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 023 | Duration | MO TOTAL | report only | all year |
| 023 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 023 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 023 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 027 | Duration | MO TOTAL | report only | all year |
| 027 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 027 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 027 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 028 | Duration | MO TOTAL | report only | all year |
| 028 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 028 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 028 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 030 | Oxygen, dissolved [DO] | DLYAVMIN | >= 6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Oxygen, dissolved [DO] | DLYAVMIN | >= 5 mg/L | Jan, Feb, Mar, Apr, Dec |
| 030 | pH | DAILY MN | >= 6 SU | all year |
| 030 | pH | DAILY MX | <= 9 SU | all year |
| 030 | Solids, total suspended | MO AVG | <= 15 mg/L | Jan, Feb, Mar, Apr, Dec |
| 030 | Solids, total suspended | MO AVG | <= 12 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Solids, total suspended | MX WK AV | <= 23 mg/L | Jan, Feb, Mar, Apr, Dec |
| 030 | Solids, total suspended | MX WK AV | <= 18 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Solids, total suspended | MO AVG | <= 3380 lb/d | Jan, Feb, Mar, Apr, Dec |
| 030 | Solids, total suspended | MO AVG | <= 2704 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Solids, total suspended | MX WK AV | <= 5182 lb/d | Jan, Feb, Mar, Apr, Dec |
| 030 | Solids, total suspended | MX WK AV | <= 4056 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 030 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 030 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.5 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Nitrogen, ammonia total [as N] | MO AVG | <= 2.2 mg/L | Jan, Feb, Mar, Apr, Dec |
| 030 | Nitrogen, ammonia total [as N] | MX WK AV | <= 2.3 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Nitrogen, ammonia total [as N] | MX WK AV | <= 3.3 mg/L | Jan, Feb, Mar, Apr, Dec |
| 030 | Nitrogen, ammonia total [as N] | MO AVG | <= 338 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Nitrogen, ammonia total [as N] | MO AVG | <= 496 lb/d | Jan, Feb, Mar, Apr, Dec |
| 030 | Nitrogen, ammonia total [as N] | MX WK AV | <= 518 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 030 | Nitrogen, ammonia total [as N] | MX WK AV | <= 744 lb/d | Jan, Feb, Mar, Apr, Dec |
| 030 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 030 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 030 | Cyanide, free [as free] | DAILY MX | report only | all year |
| 030 | Cyanide, free [as free] | DAILY MX | report only | all year |
| 030 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Silver total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Silver total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 030 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 030 | E. coli, colony forming units [CFU] | MO GEO | <= 125 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 030 | E. coli, colony forming units [CFU] | DAILY MX | <= 235 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 030 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 8 mg/L | all year |
| 030 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 12 mg/L | all year |
| 030 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1803 lb/d | all year |
| 030 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 2704 lb/d | all year |
| 030 | Flow, total | MO TOTAL | report only | all year |
| 031 | Duration | MO TOTAL | report only | all year |
| 031 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 031 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 031 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 037 | Duration | MO TOTAL | report only | all year |
| 037 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 037 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 037 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
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