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Sewage treatment plant, major discharger, Tonawanda, New York. NPDES permit NY0026395 expired Jun 30, 2019; its limits still apply. Last 12 months: over a limit 4 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| December 2025 | 096 | Solids, settleable, daily maximum | 1.5 mL/L | ≤ .3 mL/L | 400% |
| March 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | 30.2 MGD | ≤ 30 MGD | 1% |
| June 2026 | 001 | Coliform, fecal general, 30-day geometric mean | > 1.6 #/100mL | ≤ 200 #/100mL | — |
| July 2026 | 001 | pH, minimum | 5.9 SU | ≥ 6 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| 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 | ≤ 7500 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 11250 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | 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 | ≤ 7500 lb/d | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 11250 lb/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, settleable | daily maximum | ≤ .1 mL/L | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 001 |
| Cyanide, total [as CN] | daily maximum | ≤ 29.2 lb/d (alert, not enforceable) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | ≤ 29.2 lb/d (alert, not enforceable) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 3 lb/d (alert, not enforceable) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 3 lb/d (alert, not enforceable) | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ 12.8 lb/d (alert, not enforceable) | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ 12.8 lb/d (alert, not enforceable) | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ 4 lb/d (alert, not enforceable) | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ 4 lb/d (alert, not enforceable) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | ≤ 5 lb/d (alert, not enforceable) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | ≤ 5 lb/d (alert, not enforceable) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 27 lb/d (alert, not enforceable) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 27 lb/d (alert, not enforceable) | all year | 001 |
| Chloroform | daily maximum | ≤ 3 lb/d (alert, not enforceable) | all year | 001 |
| Chloroform | daily maximum | ≤ 3 lb/d (alert, not enforceable) | all year | 001 |
| Phenolics, total recoverable | monthly average | ≤ .1 mg/L | all year | 001 |
| Toluene | daily maximum | ≤ 3 lb/d (alert, not enforceable) | all year | 001 |
| Toluene | daily maximum | ≤ 3 lb/d (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia, total [as NH3] | monthly average | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 30 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 001 |
| Enterococci | 30-day geometric mean | report only (#/100mL) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ 50 ng/L | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ 50 ng/L | all year | 001 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | 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 | 095 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 095 |
| pH | minimum | ≥ 6 SU | all year | 095 |
| pH | maximum | ≤ 9 SU | all year | 095 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 095 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 095 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 095 |
| Floating solids, waste or visible foam-visual | daily maximum | ≤ 0 abst=0;prst=1 | all year | 095 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 095 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 095 |
| Enterococci | 30-day average | report only (#/100mL) | all year | 095 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 095 |
| Coliform, fecal general | 7-day average | report only (#/100mL) | all year | 095 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | all year | 095 |
| BOD, 5-day, percent removal | 30-day average | report only (%) | all year | 095 |
| Solids, suspended percent removal | 30-day average | report only (%) | all year | 095 |
| Precipitation, total defined period/in | daily maximum | report only (in) | all year | 096 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 096 |
| BOD, 5-day, 20 deg. C | maximum | ≤ 45 mg/L (alert, not enforceable) | all year | 096 |
| pH | minimum | ≥ 6 SU | all year | 096 |
| pH | maximum | ≤ 9 SU | all year | 096 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 096 |
| Solids, total suspended | maximum | ≤ 45 mg/L (alert, not enforceable) | all year | 096 |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year | 096 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 096 |
| Floating solids, waste or visible foam-visual | daily maximum | ≤ 0 abst=0;prst=1 | all year | 096 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 096 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 096 |
| Enterococci | 30-day average | report only (#/100mL) | all year | 096 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 096 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 096 |
| Coliform, fecal general | 7-day average | ≤ 400 #/100mL | all year | 096 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | all year | 096 |
| BOD, 5-day, percent removal | 30-day average | report only (%) | all year | 096 |
| Solids, suspended percent removal | 30-day average | report only (%) | all year | 096 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | SUM |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L (alert, not enforceable) | all year | SUM |
| pH | minimum | ≥ 6 SU | all year | SUM |
| pH | maximum | ≤ 9 SU | all year | SUM |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SUM |
| Solids, total suspended | daily maximum | ≤ 45 mg/L (alert, not enforceable) | all year | SUM |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year | SUM |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | SUM |
| Floating solids, waste or visible foam-visual | daily maximum | ≤ 0 abst=0;prst=1 | all year | SUM |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SUM |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | SUM |
| Enterococci | 30-day average | report only (#/100mL) | all year | SUM |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | SUM |
| Coliform, fecal general | 7-day average | ≤ 400 #/100mL | all year | SUM |
| Coliform, fecal general | daily maximum | report only (#/100mL) | all year | SUM |
| BOD, 5-day, percent removal | 30-day average | report only (%) | all year | SUM |
| Solids, suspended percent removal | 30-day average | report only (%) | all year | SUM |
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/NY0026395 · MCP: https://passage-data.com/mcp