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Sewage treatment plant, Bloomington, Indiana. NPDES permit IN0030163, in force until Aug 31, 2028. Last 12 months: over a limit 11 times (last August 2026), 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| May 2026 | Phosphorus, total [as P], monthly average | 21.3 mg/L | ≤ 1 mg/L | 2030% |
| June 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 1.9 mg/L | ≤ 1.6 mg/L | 19% |
| June 2026 | Phosphorus, total [as P], monthly average | 42.9 mg/L | ≤ 1 mg/L | 4190% |
| July 2026 | E. coli, colony forming units [CFU], daily maximum | 980 CFU/100mL | ≤ 235 CFU/100mL | 317% |
| July 2026 | E. coli, colony forming units [CFU], monthly geometric mean | 143 CFU/100mL | ≤ 125 CFU/100mL | 14% |
| July 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 3.4 mg/L | ≤ 1.6 mg/L | 113% |
| July 2026 | Phosphorus, total [as P], monthly average | 21.1 mg/L | ≤ 1 mg/L | 2010% |
| August 2026 | Nitrogen, ammonia total [as N], monthly average | 1.3 mg/L | ≤ 1.1 mg/L | 18% |
| August 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 3.4 mg/L | ≤ 1.6 mg/L | 113% |
| August 2026 | Phosphorus, total [as P], monthly average | 17.5 mg/L | ≤ 1 mg/L | 1650% |
| August 2026 | pH, daily minimum | 2.7 SU | ≥ 6 SU | — |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6 mg/L | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 18 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 4.5 lb/d | all year |
| Solids, total suspended | maximum weekly average | ≤ 6.8 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.1 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 1.6 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.4 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .4 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .6 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ .6 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ .9 lb/d | Jan, Feb, Mar, Apr, Dec |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | 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 | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 3.8 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 5.6 lb/d | 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/IN0030163 · MCP: https://passage-data.com/mcp