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Sewage treatment plant, Sunman, Indiana. NPDES permit IN0021679, in force until Dec 31, 2028. Last 12 months: over a limit 11 times (last June 2026), 3 required values missing, 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Chlorine, total residual, daily minimum | .03 mg/L | ≥ .5 mg/L | 94% |
| October 2025 | Chlorine, total residual, daily maximum | .25 mg/L | < .06 mg/L | 317% |
| October 2025 | Chlorine, total residual, daily maximum | .25 mg/L | < .06 mg/L | 317% |
| November 2025 | pH, daily minimum | 4.9 SU | ≥ 6 SU | — |
| January 2026 | Oxygen, dissolved [DO], daily average minimum | 4.6 mg/L | ≥ 5 mg/L | 8% |
| April 2026 | Chlorine, total residual, daily minimum | .09 mg/L | ≥ .5 mg/L | 82% |
| April 2026 | Chlorine, total residual, daily maximum | .12 mg/L | < .06 mg/L | 100% |
| April 2026 | E. coli, colony forming units [CFU], daily maximum | 1011 CFU/100mL | ≤ 235 CFU/100mL | 330% |
| May 2026 | Chlorine, total residual, daily maximum | .18 mg/L | < .06 mg/L | 200% |
| May 2026 | Nitrogen, ammonia total [as N], maximum weekly average | 7.8 lb/d | ≤ 3.44 lb/d | 127% |
| June 2026 | Chlorine, total residual, daily maximum | .06 mg/L | < .06 mg/L | 0% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6 mg/L | May–Nov |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Dec |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | monthly average | ≤ 24 mg/L | May–Nov |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | maximum weekly average | ≤ 36 mg/L | May–Nov |
| Solids, total suspended | monthly average | ≤ 56 lb/d | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | monthly average | ≤ 45 lb/d | May–Nov |
| Solids, total suspended | maximum weekly average | ≤ 84 lb/d | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | maximum weekly average | ≤ 68 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.22 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.85 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 1.83 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.78 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.29 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.47 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 3.44 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 5.22 lb/d | Jan, Feb, Mar, Apr, Dec |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Chlorine, total residual | monthly average | < .06 mg/L | Apr–Oct |
| Chlorine, total residual | daily maximum | < .06 mg/L | Apr–Oct |
| Chlorine, total residual | daily minimum | ≥ .5 mg/L | Apr–Oct |
| Chlorine, total residual | daily maximum | report only (mg/L) | Apr–Oct |
| 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 | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 30 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 47 lb/d | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 38 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 75 lb/d | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 56 lb/d | May–Nov |
| Flow, total | monthly total | report only (Mgal/mo) | all year |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Phosphorus, total [as P], monthly average | 1 mL/L | new | 2200 mL/L (11 values) | check the permit |
Check the permit: no written limit or plant report supports these values of EPA's. Each is a nutrient limit under 0.0005 mg/L, a unit the parameter is not measured in, or a median over 1,000 times the limit. Read the permit before relying on it.
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/IN0021679 · MCP: https://passage-data.com/mcp