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Sewage treatment plant, Bremen, Indiana. NPDES permit IN0057002, in force until Aug 31, 2031. Last 12 months: over a limit 14 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Solids, total suspended, monthly average | 76.5 mg/L | ≤ 70 mg/L | 9% |
| November 2025 | Solids, total suspended, maximum weekly average | 106 mg/L | ≤ 105 mg/L | 1% |
| November 2025 | pH, daily maximum | 9.1 SU | ≤ 9 SU | — |
| December 2025 | Solids, total suspended, monthly average | 87.8 mg/L | ≤ 70 mg/L | 25% |
| December 2025 | Solids, total suspended, maximum weekly average | 132 mg/L | ≤ 105 mg/L | 26% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 19.6 mg/L | ≤ 12.1 mg/L | 62% |
| January 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 28.1 mg/L | ≤ 18.2 mg/L | 54% |
| January 2026 | Solids, total suspended, monthly average | 75.3 mg/L | ≤ 70 mg/L | 8% |
| January 2026 | Solids, total suspended, maximum weekly average | 150 mg/L | ≤ 105 mg/L | 43% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 15.4 mg/L | ≤ 12.1 mg/L | 27% |
| February 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 38.1 mg/L | ≤ 18.2 mg/L | 109% |
| March 2026 | Solids, total suspended, monthly average | 205.8 mg/L | ≤ 70 mg/L | 194% |
| March 2026 | Solids, total suspended, maximum weekly average | 276 mg/L | ≤ 105 mg/L | 163% |
| March 2026 | pH, daily maximum | 10.8 SU | ≤ 9 SU | — |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Streamflow | monthly average | report only (MGD) | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 70 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 105 mg/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 9.5 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12.1 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 14.3 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 18.2 mg/L | Jan, Feb, Mar, Apr, Dec |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year |
| Dilution factor | daily maximum | ≤ .1 Ratio | all year |
| Flow, total | monthly total | report only (Mgal/mo) | all year |
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/IN0057002 · MCP: https://passage-data.com/mcp