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North Tonawanda (C)

Sewage treatment plant, major discharger, North Tonawanda, New York. NPDES permit NY0026280 expired Nov 30, 2023; its limits still apply. Last 12 months: over a limit 7 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (38 values), form Q quarterly (3 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
9 values over a limit, 2 required values missing, 1 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, percent removal, monthly average minimum44.82 %≥ 65 %58%
February 2026BOD, 5-day, percent removal, monthly average minimum63.21 %≥ 65 %5%
March 2026BOD, 5-day, percent removal, monthly average minimum40.88 %≥ 65 %69%
March 2026Solids, suspended percent removal, monthly average minimum60.18 %≥ 75 %59%
April 2026BOD, 5-day, percent removal, monthly average minimum40.81 %≥ 65 %69%
May 2026BOD, 5-day, percent removal, monthly average minimum47.57 %≥ 65 %50%
June 2026BOD, 5-day, percent removal, monthly average minimum47.1 %≥ 65 %51%

Limits in force (59)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
BOD, 5-day, 20 deg. C30-day arithmetic mean≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day arithmetic mean≤ 45 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. C30-day arithmetic mean≤ 3253 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 3253 lb/dall year
BOD, 5-day, 20 deg. C7-day arithmetic mean≤ 4879 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 4879 lb/dall year
BOD, 5-day, 20 deg. C30-day arithmetic meanreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. C7-day arithmetic meanreport only (mg/L)all year
BOD, 5-day, 20 deg. C7-day averagereport only (mg/L)all year
BOD, 5-day, 20 deg. C30-day arithmetic meanreport only (lb/d)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. C7-day arithmetic meanreport only (lb/d)all year
BOD, 5-day, 20 deg. C7-day averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspended30-day arithmetic mean≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspended7-day arithmetic mean≤ 45 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day arithmetic mean≤ 3253 lb/dall year
Solids, total suspendedmonthly average≤ 3253 lb/dall year
Solids, total suspended7-day arithmetic mean≤ 4879 lb/dall year
Solids, total suspended7-day average≤ 4879 lb/dall year
Solids, total suspended30-day arithmetic meanreport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspended7-day arithmetic meanreport only (mg/L)all year
Solids, total suspended7-day averagereport only (mg/L)all year
Solids, total suspended30-day arithmetic meanreport only (lb/d)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspended7-day arithmetic meanreport only (lb/d)all year
Solids, total suspended7-day averagereport only (lb/d)all year
Solids, settleabledaily maximum≤ .1 mL/Lall year
Solids, settleabledaily maximumreport only (mL/L)all year
Oil & Greasedaily maximum≤ 15 mg/L (alert, not enforceable)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Chloroformdaily maximum≤ 3.8 lb/d (alert, not enforceable)all year
Toluenedaily maximum≤ .61 lb/d (alert, not enforceable)all year
1,2-Dichlorobenzenedaily maximum≤ .75 lb/d (alert, not enforceable)all year
1,4-Dichlorobenzenedaily maximum≤ 1 lb/d (alert, not enforceable)all year
Flow, in conduit or thru treatment plant30-day arithmetic mean≤ 13 MGDall year
Flow, in conduit or thru treatment plantmonthly average≤ 13 MGDall year
Chlorine, total residualdaily maximum≤ 2 mg/Lall year
Enterococci30-day geometric meanreport only (#/100mL)all year
Mercury, total [as Hg]rolling average≤ 5 ng/Lall year
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year
Solids, suspended percent removalmonthly average minimum≥ 75 %all year

How strict are these limits?

Cited limits by parameter: New York's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0026280 · MCP: https://passage-data.com/mcp