NPDES permit IN0032336 · Major POTW · effective, expires 2030-05-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-06-30.
Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | DLYAVMIN | >= 5 mg/L | all year |
| 001 | pH | DAILY MN | >= 6 SU | all year |
| 001 | pH | DAILY MX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MX WK AV | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 5408 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 8111 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 2.5 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 3.4 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 3.8 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 5.1 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 451 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 613 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 685 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 919 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Cyanide, free [as free] | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cyanide, free [as free] | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cyanide, free [as free] | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cyanide, free [as free] | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Nickel, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Zinc, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cadmium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cadmium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cadmium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Cadmium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Lead, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Chromium, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Chlorine, total residual | MO AVG | < .06 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Chlorine, total residual | DAILY MX | < .06 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | E. coli, colony forming units [CFU] | MO GEO | <= 125 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | E. coli, colony forming units [CFU] | DAILY MX | <= 235 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | E. coli, colony forming units [CFU] | DAILY MX | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Number of Events | MO TOTAL | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Number of Events | MO TOTAL | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | May |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | Jun |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | Jun |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1.6 tox chronic | May |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1.6 tox chronic | Jun |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1.6 tox chronic | Jun |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | May |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | Jun |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | Jun |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1.6 tox chronic | May |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1.6 tox chronic | Jun |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1.6 tox chronic | Jun |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 40 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 4506 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 7210 lb/d | all year |
| 001 | Flow, total | MO TOTAL | report only | all year |
| 002 | Duration | MO TOTAL | report only | all year |
| 002 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 002 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 002 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 003 | Duration | MO TOTAL | report only | all year |
| 003 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 003 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 003 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 004 | Duration | MO TOTAL | report only | all year |
| 004 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 004 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 004 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
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