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Sewage treatment plant, major discharger, Buffalo, New York. NPDES permit NY0095401, in force until Sep 30, 2031. Last 12 months: over a limit 23 times (last June 2026), 2 required values missing, 5 of 46 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 001 | Solids, settleable, daily maximum | < .4 mL/L | ≤ .3 mL/L | 33% |
| October 2025 | 002 | Coliform, fecal general, 7-day average | 831 #/100mL | ≤ 400 #/100mL | 108% |
| November 2025 | 001 | BOD, 5-day, percent removal, monthly average minimum | 84 % | ≥ 85 % | 7% |
| November 2025 | 001 | Coliform, fecal general, 30-day geometric mean | > 8 #/100mL | ≤ 200 #/100mL | — |
| November 2025 | 001 | Coliform, fecal general, 7-day geometric mean | > 9 #/100mL | ≤ 400 #/100mL | — |
| November 2025 | 001 | Flow, in conduit or thru treatment plant, monthly average | 16.1 MGD | ≤ 16 MGD | 1% |
| December 2025 | 001 | BOD, 5-day, percent removal, monthly average minimum | 83 % | ≥ 85 % | 13% |
| December 2025 | 001 | Flow, in conduit or thru treatment plant, monthly average | 19.7 MGD | ≤ 16 MGD | 23% |
| December 2025 | 003 | Coliform, fecal general, 30-day geometric mean | > 48 #/100mL | ≤ 200 #/100mL | — |
| December 2025 | 003 | Coliform, fecal general, 7-day geometric mean | > 128 #/100mL | ≤ 400 #/100mL | — |
| December 2025 | 003 | Phenolics, total recoverable, daily maximum | 16 ug/L | ≤ 15 ug/L | 7% |
| January 2026 | 001 | BOD, 5-day, percent removal, monthly average minimum | 83 % | ≥ 85 % | 13% |
| January 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | 19.6 MGD | ≤ 16 MGD | 23% |
| February 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | 19 MGD | ≤ 16 MGD | 19% |
| February 2026 | 001 | Phenolics, total recoverable, monthly average | 2.7 lb/d | ≤ 2 lb/d | 35% |
| March 2026 | 001 | BOD, 5-day, percent removal, monthly average minimum | 83 % | ≥ 85 % | 13% |
| March 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | 26.3 MGD | ≤ 16 MGD | 64% |
| April 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | 25.1 MGD | ≤ 16 MGD | 57% |
| April 2026 | 003 | Phenolics, total recoverable, daily maximum | 27 ug/L | ≤ 15 ug/L | 80% |
| May 2026 | 001 | BOD, 5-day, percent removal, monthly average minimum | 82 % | ≥ 85 % | 20% |
| May 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | 19.7 MGD | ≤ 16 MGD | 23% |
| May 2026 | 001 | Solids, settleable, daily maximum | .64 mL/L | ≤ .3 mL/L | 113% |
| June 2026 | 002 | Coliform, fecal general, 7-day average | 17329 #/100mL | ≤ 400 #/100mL | 4232% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | report only (lb/d) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, total suspended | 7-day average | report only (lb/d) | all year | 001 |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 46 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Precipitation, total defined period/in | daily maximum | report only (in) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 002 |
| Floating solids or visible foam-visual/days | daily maximum | report only (d) | all year | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 12000 lb/d | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 6500 lb/d | all year | 003 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 17000 lb/d | all year | 003 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 9800 lb/d | all year | 003 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 12000 lb/d | all year | 003 |
| Solids, total suspended | monthly average | ≤ 6500 lb/d | all year | 003 |
| Solids, total suspended | 7-day average | ≤ 17000 lb/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 9800 lb/d | all year | 003 |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 5800 lb/d | all year | 003 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, nitrite total [as N] | daily maximum | ≤ 1.6 mg/L | all year | 003 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, nitrite total [as N] | daily maximum | ≤ 610 lb/d | all year | 003 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (lb/d) | all year | 003 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 003 |
| Phosphorus, total [as P] | monthly average | ≤ 220 lb/d | all year | 003 |
| Cyanide, free [as free] | daily maximum | ≤ 51 ug/L | all year | 003 |
| Cyanide, free [as free] | daily maximum | ≤ 51 ug/L | all year | 003 |
| Cyanide, free [as free] | daily maximum | ≤ 20 lb/d | all year | 003 |
| Cyanide, free [as free] | daily maximum | report only (lb/d) | all year | 003 |
| Fluoride, total [as F] | daily maximum | report only (ug/L) | all year | 003 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 003 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 003 |
| Chloroform | daily maximum | report only (ug/L) | all year | 003 |
| Phenolics, total (pounds per day) | monthly average | ≤ 16 ug/L | all year | 003 |
| Phenolics, total (pounds per day) | monthly average | ≤ 24 ug/L | all year | 003 |
| Phenolics, total (pounds per day) | monthly average | ≤ 6.1 lb/d | all year | 003 |
| Phenolics, total (pounds per day) | monthly average | ≤ 5.2 lb/d | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .38 mg/L | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .38 mg/L | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ 150 lb/d | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ 82 lb/d | all year | 003 |
| E. coli | 30-day geometric mean | report only (#/100mL) | May–Oct | 003 |
| E. coli | 7-day geometric mean | report only (#/100mL) | May–Oct | 003 |
| Bromodichloromethane | daily maximum | report only (ug/L) | all year | 003 |
| Mercury, total [as Hg] | daily maximum | ≤ 50 ng/L | all year | 003 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | 003 |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | all year | 003 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 003 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 003 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Flow, in conduit or thru treatment plant, monthly average | 26 MGD | tighter | 19 MGD (11 values) | 0.731× |
Cited limits by parameter: New York's rules and the federal ones.
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