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Sewage treatment plant, major discharger, Anderson, Indiana. NPDES permit IN0032476, in force until Sep 30, 2030. Last 12 months: over a limit once (last July 2026), 1 of 136 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| July 2026 | Chlorine, total residual, daily maximum | .06 mg/L | < .06 mg/L | 0% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6 mg/L | May–Nov | 001 |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 24 mg/L | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 36 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 4256 lb/d | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 6384 lb/d | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.7 mg/L | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.6 mg/L | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 4.5 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 301 lb/d | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 532 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 461 lb/d | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 798 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Chlorine, total residual | monthly average | < .06 mg/L | Apr–Oct | 001 |
| Chlorine, total residual | daily maximum | < .06 mg/L | Apr–Oct | 001 |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct | 001 |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct | 001 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute (alert, not enforceable) | Mar, Sep | 001 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute (alert, not enforceable) | Apr, Oct | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.6 tox chronic (alert, not enforceable) | Mar, Sep | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1.6 tox chronic (alert, not enforceable) | Apr, Oct | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute (alert, not enforceable) | Mar, Sep | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute (alert, not enforceable) | Apr, Oct | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.6 tox chronic (alert, not enforceable) | Mar, Sep | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.6 tox chronic (alert, not enforceable) | Apr, Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 30 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 3547 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 5320 lb/d | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| Duration | monthly total | report only (hr/mo) | all year | 003 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 003 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 003 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 003 |
| Duration | monthly total | report only (hr/mo) | all year | 007 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 007 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 007 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 007 |
| Duration | monthly total | report only (hr/mo) | all year | 009 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 009 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 009 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 009 |
| Duration | monthly total | report only (hr/mo) | all year | 011 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 011 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 011 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 011 |
| Duration | monthly total | report only (hr/mo) | all year | 013 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 013 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 013 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 013 |
| Duration | monthly total | report only (hr/mo) | all year | 014 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 014 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 014 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 014 |
| Duration | monthly total | report only (hr/mo) | all year | 015 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 015 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 015 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 015 |
| Duration | monthly total | report only (hr/mo) | all year | 016 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 016 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 016 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 016 |
| Duration | monthly total | report only (hr/mo) | all year | 021 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 021 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 021 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 021 |
| Duration | monthly total | report only (hr/mo) | all year | 026 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 026 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 026 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 026 |
Cited limits by parameter: Indiana's rules and the federal ones.
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