NPDES permit IN0021016 · Major POTW · effective, expires 2030-12-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-08-31. 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 | 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 | <= 3 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 9.6 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 4.5 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 14.4 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 190 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 601 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 280 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MX WK AV | <= 901 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX WK AV | report only | all year |
| 001 | Nitrogen, Kjeldahl, total [as N] | MX WK AV | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | MX WK AV | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | MX WK AV | report only | 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 | 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 | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Silver 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 | 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 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Copper, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Phenolics, total recoverable | DAILY MX | report only | Mar, Jun, Sep, Dec |
| 001 | Phenolics, 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 | 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) | Dec |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jan |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MAXIMUM | <= 1 tox acute (alert) | Jan |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Dec |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jan |
| 001 | Toxicity [acute], Pimephales promelas [Fathead Minnow] | MAXIMUM | <= 1 tox acute (alert) | Jan |
| 001 | Coliform, fecal general | MO GEO | <= 2000 #/100mL | Jan, Feb, Mar, Nov, 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 | <= 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 |
| 001 | TU Static 48Hr Acute Daphnia magna | MAXIMUM | <= 1 tox acute (alert) | Dec |
| 001 | TU Static 48Hr Acute Daphnia magna | MAXIMUM | <= 1 tox acute (alert) | Jan |
| 001 | TU Static 48Hr Acute Daphnia magna | MAXIMUM | <= 1 tox acute (alert) | Jan |
| 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 |
| 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 |
| 102 | Duration | MO TOTAL | report only | all year |
| 102 | Overflow volume [SS0 volume, CSO volume] | MO TOTAL | report only | all year |
| 102 | Precipitation, monthly accumulation | MO TOTAL | report only | all year |
| 102 | Discharge event observation [Visual Monitoring] | MO TOTAL | report only | all year |
| PRT | Copper, 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 | 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 | 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 |
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