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Sewage treatment plant, Duanesburg, New York. NPDES permit NY0261271 expired Feb 28, 2026; its limits still apply. Last 12 months: over a limit once (last March 2026), 11 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Flow rate, daily maximum | .108 MGD | ≤ .1 MGD | 8% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Flow rate | daily maximum | ≤ .1 MGD | all year |
| Oxygen, dissolved [DO] | daily minimum | ≥ 7 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 5 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 4.17 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| pH | minimum | report only (SU) | all year |
| pH | maximum | report only (SU) | all year |
| Solids, total suspended | daily maximum | ≤ 10 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 8.34 lb/d | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Solids, settleable | daily maximum | ≤ .1 mL/L | all year |
| Solids, settleable | daily maximum | report only (mL/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.2 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.5 mg/L | Jun–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.84 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.25 lb/d | Jun–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .03 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .03 lb/d | all year |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | all year |
Cited limits by parameter: New York'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/NY0261271 · MCP: https://passage-data.com/mcp