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Erie Co SD#8

Sewage treatment plant, major discharger, East Aurora, New York. NPDES permit NY0028436 expired Sep 30, 2025; its limits still apply. Last 12 months: over a limit 2 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (34 values), form Q quarterly (1 value)
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
March 2026Flow, in conduit or thru treatment plant, monthly average4.05 MGD≤ 3.14 MGD29%
April 2026Flow, in conduit or thru treatment plant, monthly average3.84 MGD≤ 3.14 MGD22%

Limits in force (51)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Oxygen demand, ultimatemonthly average≤ 63 mg/LJun–Oct
Oxygen demand, ultimatemonthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
Oxygen demand, ultimatemonthly average≤ 1650 lb/dJun–Oct
Oxygen demand, ultimatemonthly averagereport only (lb/d)Jan, Feb, Mar, Apr, May, Nov, Dec
Oxygen demand, ultimatemonthly averagereport only (mg/L)all year
Oxygen, dissolved [DO]daily minimumreport only (mg/L)Jun–Oct
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 786 lb/dall year
Solids, total suspended7-day average≤ 1178 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, settleabledaily maximum≤ .1 mL/Lall year
Solids, settleabledaily maximumreport only (mL/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.96 mg/LJun–Oct
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jun–Oct
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)Jun–Oct
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)Jan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jun–Oct
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
Phosphorus, total [as P]monthly average≤ 1 mg/LJun–Oct
Phosphorus, total [as P]monthly average≤ 1 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 3.14 MGDall year
Chlorine, total residualdaily maximum≤ .1 mg/LMay–Oct
Chlorine, total residualdaily maximum≤ .03 mg/LMay–Oct
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 #/100mLMay–Oct
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct
BOD, carbonaceous [5 day, 20 C]daily averagereport only (mg/L)Jun–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 655 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)Jun–Oct
BOD, carbonaceous [5 day, 20 C]7-day average≤ 1048 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily averagereport only (mg/L)Jun–Oct
BOD, carbonaceous [5 day, 20 C]7-day averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %Jan, Feb, Mar, Apr, May, Nov, Dec
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %all year
Outfall observation,visual, y/n responseEPA's "NONSP MX"report only (N=0;Y=1)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/NY0028436 · MCP: https://passage-data.com/mcp