NPDES permit IN0023124 · Major POTW · effective, expires 2031-05-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31. Most often over: Oxygen, dissolved [DO] (1), Phosphorus, total [as P] (1), Nitrogen, ammonia total [as N] (1).
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 |
|---|---|---|---|---|
| 002 | Oxygen, dissolved [DO] | DLYAVMIN | >= 6 mg/L | all year |
| 002 | pH | DAILY MN | >= 6 SU | all year |
| 002 | pH | DAILY MX | <= 9 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= 12 mg/L | all year |
| 002 | Solids, total suspended | WKLY AVG | <= 18 mg/L | all year |
| 002 | Solids, total suspended | MO AVG | <= 350 lb/d | all year |
| 002 | Solids, total suspended | WKLY AVG | <= 520 lb/d | all year |
| 002 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.1 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.6 mg/L | Jan, Feb, Mar, Apr, Dec |
| 002 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 1.6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 002 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 2.4 mg/L | Jan, Feb, Mar, Apr, Dec |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 32 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | <= 46 lb/d | Jan, Feb, Mar, Apr, Dec |
| 002 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 46 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 002 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 69 lb/d | Jan, Feb, Mar, Apr, Dec |
| 002 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 002 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | E. coli, colony forming units [CFU] | MO GEO | <= 125 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 002 | E. coli, colony forming units [CFU] | DAILY MX | <= 235 CFU/100mL | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 002 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | Nov |
| 002 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute | Dec |
| 002 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1 tox chronic | Nov |
| 002 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1 tox chronic | Dec |
| 002 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | Nov |
| 002 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute | Dec |
| 002 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox chronic | Nov |
| 002 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox chronic | Dec |
| 002 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 10 mg/L | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 15 mg/L | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 290 lb/d | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 430 lb/d | all year |
| 002 | 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