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Sewage treatment plant, major discharger, Webster, New York. NPDES permit NY0026794, in force until Feb 28, 2029. Last 12 months: over a limit 16 times (last May 2026), 5 required values missing, 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, 5-day, percent removal, minimum | 80 % | ≥ 85 % | 33% |
| October 2025 | Solids, total suspended, 7-day average | 52.5 mg/L | ≤ 45 mg/L | 17% |
| November 2025 | BOD, 5-day, 20 deg. C, 7-day average | 50.9 mg/L | ≤ 45 mg/L | 13% |
| November 2025 | BOD, 5-day, 20 deg. C, monthly average | 42.05 mg/L | ≤ 30 mg/L | 40% |
| November 2025 | BOD, 5-day, percent removal, minimum | 59 % | ≥ 85 % | 173% |
| November 2025 | Nitrogen, ammonia total [as N], monthly average | 15.3 mg/L | ≤ 13 mg/L | 18% |
| November 2025 | Solids, suspended percent removal, minimum | 80 % | ≥ 85 % | 33% |
| November 2025 | Solids, total suspended, 7-day average | 51.4 mg/L | ≤ 45 mg/L | 14% |
| November 2025 | Solids, total suspended, monthly average | 31.45 mg/L | ≤ 30 mg/L | 5% |
| December 2025 | BOD, 5-day, 20 deg. C, 7-day average | 45.3 mg/L | ≤ 45 mg/L | 1% |
| December 2025 | BOD, 5-day, percent removal, minimum | 77 % | ≥ 85 % | 53% |
| December 2025 | Solids, total suspended, monthly average | 33 mg/L | ≤ 30 mg/L | 10% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 14.5 mg/L | ≤ 13 mg/L | 12% |
| March 2026 | BOD, 5-day, percent removal, minimum | 80 % | ≥ 85 % | 33% |
| April 2026 | BOD, 5-day, percent removal, minimum | 65 % | ≥ 85 % | 133% |
| May 2026 | BOD, 5-day, percent removal, minimum | 71 % | ≥ 85 % | 93% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | 7-day average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, total suspended | 7-day average | report only (lb/d) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12 mg/L | Jun–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 13 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 13 mg/L | Jun–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jun–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jun–Oct |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Cyanide, free [as free] | daily maximum | ≤ 52 ug/L | all year |
| Cyanide, free [as free] | daily maximum | report only (lb/d) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (lb/d) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year |
| Methylene chloride | daily maximum | report only (ug/L) | all year |
| Methylene chloride | daily maximum | report only (lb/d) | all year |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year |
| 1,1,1-Trichloroethane | daily maximum | report only (lb/d) | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 2.5 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | daily maximum | ≤ .25 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year |
| Chlorine, total residual | daily maximum | report only (lb/d) | all year |
| Chlorine, total residual | daily maximum | report only (lb/d) | all year |
| E. coli | 30-day geometric mean | report only (#/100mL) | all year |
| E. coli | 7-day geometric mean | report only (#/100mL) | all year |
| Mercury, total [as Hg] | daily maximum | ≤ 50 ng/L | all year |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year |
| Coliform, fecal general | 30-day geometric mean | report only (#/100mL) | all year |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | all year |
| Coliform, fecal general | 7-day geometric mean | report only (#/100mL) | all year |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year |
Cited limits by parameter: New York's rules and the federal ones.
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