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Sewage treatment plant, Fairmount, Indiana. NPDES permit IN0021105, in force until Dec 31, 2026. Last 12 months: no values over a limit, 94 required values missing, 18 of 198 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6 mg/L | May–Nov | 001 |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 5.5 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 | ≤ 16 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | May–Nov | 001 |
| Solids, total suspended | maximum weekly average | ≤ 24 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Solids, total suspended | maximum weekly average | ≤ 15 mg/L | May–Nov | 001 |
| Solids, total suspended | monthly average | ≤ 401 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 250 lb/d | May–Nov | 001 |
| Solids, total suspended | maximum weekly average | ≤ 601 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Solids, total suspended | maximum weekly average | ≤ 376 lb/d | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.3 mg/L | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 3.2 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 37.6 lb/d | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 52.6 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 57.6 lb/d | May–Nov | 001 |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 80.1 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 |
| 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 |
| Chlorine, total residual | daily minimum | ≥ .5 mg/L | Apr–Oct | 001 |
| Chlorine, total residual | daily maximum | report only (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 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 16 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 24 mg/L | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 401 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 250 lb/d | May–Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 601 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 376 lb/d | May–Nov | 001 |
| Phosphorus, total percent removal | monthly average minimum | ≥ 70 % | all year | 001 |
| Flow, total | monthly total | report only (Mgal/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 | 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 | 005 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 005 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 005 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 005 |
| 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 | 010 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 010 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 010 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 010 |
| 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 | 012 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 012 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 012 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 012 |
| 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 | 017 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 017 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 017 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 017 |
| Duration | monthly total | report only (hr/mo) | all year | 018 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 018 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 018 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 018 |
| Duration | monthly total | report only (hr/mo) | all year | 019 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 019 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 019 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 019 |
| Duration | monthly total | report only (hr/mo) | all year | 020 |
| Overflow volume [SS0 volume, CSO volume] | monthly total | report only (Mgal) | all year | 020 |
| Precipitation, monthly accumulation | monthly total | report only (in/mo) | all year | 020 |
| Discharge event observation [Visual Monitoring] | monthly total | report only (#/mo) | all year | 020 |
| 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 |
Cited limits by parameter: Indiana's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/IN0021105 · MCP: https://passage-data.com/mcp