NPDES permit IN0020397 · Major POTW · effective, expires 2031-02-28 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (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 |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | DLYAVMIN | >= 6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Oxygen, dissolved [DO] | DLYAVMIN | >= 5 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 | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | MO AVG | <= 18 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | MX WK AV | <= 45 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | MX WK AV | <= 27 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | MO AVG | <= 680 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | MO AVG | <= 410 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | MX WK AV | <= 1000 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | MX WK AV | <= 610 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 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 | <= 1.1 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.6 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 1.6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 2.4 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 25 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 36 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 36 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 54 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 | Copper, total recoverable | MO AVG | <= .021 mg/L | all year |
| 001 | Copper, total recoverable | DAILY MX | <= .042 mg/L | 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 | 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) | Feb |
| 001 | Toxicity [chronic], Ceriodaphnia dubia | MAXIMUM | <= 1 tox chronic (alert) | Feb |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Feb |
| 001 | Toxicity [chronic], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox chronic (alert) | Feb |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 40 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 23 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 560 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 340 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 900 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 520 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Flow, total | MO TOTAL | report only | all year |
| PRT | Copper, dry weight | VALUE | report only | Jun, Dec |
| PRT | Copper, dry weight | VALUE | report only | Jun, Dec |
| PRT | Cadmium, dry weight | VALUE | report only | Jun, Dec |
| PRT | Cadmium, dry weight | VALUE | report only | Jun, Dec |
| PRT | Molybdenum, sludge, total, dry weight [as Mo] | VALUE | report only | Jun, Dec |
| PRT | Molybdenum, sludge, total, dry weight [as Mo] | VALUE | report only | Jun, Dec |
| PRT | Zinc, sludge, total, dry weight [as Zn] | VALUE | report only | Jun, Dec |
| PRT | Zinc, sludge, total, dry weight [as Zn] | VALUE | report only | Jun, Dec |
| PRT | Lead, sludge, total, dry weight [as Pb] | VALUE | report only | Jun, Dec |
| PRT | Lead, sludge, total, dry weight [as Pb] | VALUE | report only | Jun, Dec |
| PRT | Nickel, sludge, total, dry weight [as Ni] | VALUE | report only | Jun, Dec |
| PRT | Nickel, sludge, total, dry weight [as Ni] | VALUE | report only | Jun, Dec |
| PRT | Mercury, sludge, total, dry weight [as Hg] | VALUE | report only | Jun, Dec |
| PRT | Mercury, sludge, total, dry weight [as Hg] | VALUE | report only | Jun, Dec |
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