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Sewage treatment plant, major discharger, Monticello, Indiana. NPDES permit IN0020176, in force until Nov 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Duration | monthly total | report only (hr/mo) | all year | 001 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 001 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 001 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 001 |
| Duration | monthly total | report only (hr/mo) | all year | 002 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 002 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 002 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 002 |
| 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 | 004 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 004 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 004 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 004 |
| 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 |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6 mg/L | all year | 008 |
| pH | daily minimum | ≥ 6 SU | all year | 008 |
| pH | daily maximum | ≤ 9 SU | all year | 008 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 008 |
| Solids, total suspended | maximum weekly average | ≤ 18 mg/L | all year | 008 |
| Solids, total suspended | monthly average | ≤ 361 lb/d | all year | 008 |
| Solids, total suspended | maximum weekly average | ≤ 541 lb/d | all year | 008 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 008 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 008 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.1 mg/L | May–Nov | 008 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | Jan, Feb, Mar, Apr, Dec | 008 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 1.6 mg/L | May–Nov | 008 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.4 mg/L | Jan, Feb, Mar, Apr, Dec | 008 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 33 lb/d | May–Nov | 008 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 48.1 lb/d | Jan, Feb, Mar, Apr, Dec | 008 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 48.1 lb/d | May–Nov | 008 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 72.1 lb/d | Jan, Feb, Mar, Apr, Dec | 008 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 008 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 008 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Lead, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Molybdenum, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Molybdenum, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Molybdenum, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Molybdenum, total recoverable | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct | 008 |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct | 008 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Nov | 008 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Dec | 008 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute | Dec | 008 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1 tox chronic | Nov | 008 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1 tox chronic | Dec | 008 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 1 tox chronic | Dec | 008 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Nov | 008 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Dec | 008 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute | Dec | 008 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox chronic | Nov | 008 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox chronic | Dec | 008 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox chronic | Dec | 008 |
| Mercury, total recoverable | monthly average | ≤ 12 ng/L | Feb, Apr, Jun, Aug, Oct, Dec | 008 |
| Mercury, total recoverable | daily maximum | ≤ 20 ng/L | Feb, Apr, Jun, Aug, Oct, Dec | 008 |
| Mercury, total recoverable | daily maximum | report only (ng/L) | Feb, Apr, Jun, Aug, Oct, Dec | 008 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 008 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | all year | 008 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 300 lb/d | all year | 008 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 451 lb/d | all year | 008 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 008 |
| Duration | monthly total | report only (hr/mo) | all year | 208 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 208 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 208 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 208 |
| Copper, dry weight | value | report only (mg/kg) | Jun, Dec | PRT |
| Copper, dry weight | value | report only (mg/kg) | Jun, Dec | PRT |
| Cadmium, dry weight | value | report only (mg/kg) | Jun, Dec | PRT |
| Cadmium, dry weight | value | report only (mg/kg) | Jun, Dec | PRT |
| Molybdenum, sludge, total, dry weight [as Mo] | value | report only (mg/kg) | Jun, Dec | PRT |
| Molybdenum, sludge, total, dry weight [as Mo] | value | report only (mg/kg) | Jun, Dec | PRT |
| Zinc, sludge, total, dry weight [as Zn] | value | report only (mg/kg) | Jun, Dec | PRT |
| Zinc, sludge, total, dry weight [as Zn] | value | report only (mg/kg) | Jun, Dec | PRT |
| Lead, sludge, total, dry weight [as Pb] | value | report only (mg/kg) | Jun, Dec | PRT |
| Lead, sludge, total, dry weight [as Pb] | value | report only (mg/kg) | Jun, Dec | PRT |
| Nickel, sludge, total, dry weight [as Ni] | value | report only (mg/kg) | Jun, Dec | PRT |
| Nickel, sludge, total, dry weight [as Ni] | value | report only (mg/kg) | Jun, Dec | PRT |
| Mercury, sludge, total, dry weight [as Hg] | value | report only (mg/kg) | Jun, Dec | PRT |
| Mercury, sludge, total, dry weight [as Hg] | value | report only (mg/kg) | Jun, Dec | PRT |
Cited limits by parameter: Indiana's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IN0020176 · MCP: https://passage-data.com/mcp