NPDES permit IN0025755 · Major POTW · effective, expires 2031-06-30 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (2).
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 | >= 4 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Oxygen, dissolved [DO] | DLYAVMIN | >= 4 mg/L | Jan, Feb, Mar, Apr, Dec |
| 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 | <= 3129 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 4694 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 | <= 3.1 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 5.8 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 7.2 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 13.3 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 323 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 605 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 751 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 1387 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 | Selenium, total recoverable | MO AVG | report only | all year |
| 001 | Selenium, total recoverable | DAILY MX | report only | all year |
| 001 | Selenium, total recoverable | MO AVG | report only | all year |
| 001 | Selenium, total recoverable | DAILY MX | report only | all year |
| 001 | Selenium, total recoverable | MO AVG | report only | all year |
| 001 | Selenium, total recoverable | DAILY MX | report only | all year |
| 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 | Silver total recoverable | MO AVG | report only | all year |
| 001 | Silver total recoverable | DAILY MX | report only | all year |
| 001 | Silver total recoverable | MO AVG | report only | all year |
| 001 | Silver total recoverable | DAILY MX | report only | all year |
| 001 | Silver total recoverable | MO AVG | report only | all year |
| 001 | Silver total recoverable | DAILY MX | report only | all year |
| 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 | MO AVG | 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 | 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 | Copper, total recoverable | MO AVG | report only | all year |
| 001 | Copper, total recoverable | DAILY MX | report only | all year |
| 001 | Copper, total recoverable | MO AVG | report only | all year |
| 001 | Copper, total recoverable | DAILY MX | report only | all year |
| 001 | Copper, total recoverable | MO AVG | report only | all year |
| 001 | Copper, total recoverable | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .02 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 | Chlorine, total residual | MO AVG | <= 2.1 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Chlorine, total residual | DAILY MX | < 4.2 lb/d | 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 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jun, Dec |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jan, Jul |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 3.8 tox chronic | Jun, Dec |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 3.8 tox chronic | Jan, Jul |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jun, Dec |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jan, Jul |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 3.8 tox chronic | Jun, Dec |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 3.8 tox chronic | Jan, Jul |
| 001 | Mercury, total recoverable | ANNL AVG | <= 2.23 ng/L | Feb, Apr, Jun, Aug, Oct, Dec |
| 001 | Mercury, total recoverable | DAILY MX | report only | Feb, Apr, Jun, Aug, Oct, Dec |
| 001 | Mercury, total recoverable | DAILY MX | report only | Feb, Apr, Jun, Aug, Oct, Dec |
| 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 | <= 2608 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 4173 lb/d | all year |
| 001 | Flow, total | MO TOTAL | report only | all year |
| 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 |
| 008 | Duration | MO TOTAL | report only | all year |
| 008 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 008 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 008 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 009 | Duration | MO TOTAL | report only | all year |
| 009 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 009 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 009 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| 010 | Duration | MO TOTAL | report only | all year |
| 010 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 010 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 010 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
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