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Washingtonville (V)

Sewage treatment plant, Washingtonville, New York. NPDES permit NY0023671, in force until Jan 31, 2031. Last 12 months: over a limit 10 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (21 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 2 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Coliform, fecal general, 30-day geometric mean2419 #/100mL≤ 200 #/100mL1110%
October 2025Coliform, fecal general, 7-day geometric mean2419 #/100mL≤ 400 #/100mL505%
January 2026Solids, settleable, daily maximum1 mL/L≤ .1 mL/L900%
February 2026Solids, settleable, daily maximum5 mL/L≤ .1 mL/L4900%
March 2026Flow, in conduit or thru treatment plant, monthly average.892 MGD≤ .85 MGD5%
March 2026Solids, settleable, daily maximum5 mL/L≤ .1 mL/L4900%
April 2026Solids, settleable, daily maximum1.5 mL/L≤ .1 mL/L1400%
July 2026Chlorine, total residual, daily maximum2.2 mg/L≤ .1 mg/L2100%
July 2026Solids, settleable, daily maximum3 mL/L≤ .1 mL/L2900%
August 2026Nitrogen, ammonia, total [as NH3], monthly average2.1 mg/L≤ 1.5 mg/L40%

Limits in force (21)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Oxygen demand, ultimatedaily maximum≤ 20 mg/Lall year
Oxygen demand, ultimatedaily maximum≤ 142 lb/dall year
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily maximum≤ 10 mg/Lall year
Solids, total suspendeddaily maximum≤ 71 lb/dall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Solids, settleabledaily maximum≤ .1 mL/Lall year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia, total [as NH3]monthly average≤ 1.5 mg/LJun–Oct
Flow, in conduit or thru treatment plantmonthly average≤ .85 MGDall year
Chlorine, total residualdaily maximum≤ .1 mg/LMay–Oct
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %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/NY0023671 · MCP: https://passage-data.com/mcp