NPDES permit IN0031020 · Major POTW · effective, expires 2029-10-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-08-31.
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 | 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 | <= 1878 lb/d | all year |
| 001 | Solids, total suspended | MX WK AV | <= 2816 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 | <= 4.4 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 6.6 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 275.4 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 413.1 lb/d | all year |
| 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] | MO AVG | <= .022 mg/L | all year |
| 001 | Cyanide, free [as free] | MO AVG | report only | all year |
| 001 | Cyanide, free [as free] | DAILY MX | <= .044 mg/L | all year |
| 001 | Cyanide, free [as free] | DAILY MX | report only | all year |
| 001 | Cyanide, free [as free] | MO AVG | report only | all year |
| 001 | Cyanide, free [as free] | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 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 | Apr, Oct |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | May, Nov |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | May, Nov |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 40.5 tox chronic | Apr, Oct |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 40 tox chronic | May, Nov |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 40 tox chronic | May, Nov |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | Apr, Oct |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | May, Nov |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | May, Nov |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 40.5 tox chronic | Apr, Oct |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 40 tox chronic | May, Nov |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 40 tox chronic | May, Nov |
| 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 | <= 1565 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 2504 lb/d | all year |
| 001 | Flow, total | MO 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