Passage Data · Check a report · Use it from your AI

Westchester Co Dept of Env Fac

Sewage treatment plant, major discharger, Port Chester, New York. NPDES permit NY0026786 expired Mar 31, 2013; its limits still apply. Last 12 months: over a limit once (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (37 values), outfall 001 form V quarterly (4 values), outfall 01A form Q quarterly (1 value)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 23 reports late

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

Period endingParameterReportedLimitOver by
March 2026Flow, in conduit or thru treatment plant, 30-day average6.1 MGD≤ 6 MGD2%

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHminimumreport only (SU)all year001
pHmaximumreport only (SU)all year001
Solids, total suspended30-day average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspended30-day average≤ 1500 lb/dall year001
Solids, total suspended7-day average≤ 2300 lb/dall year001
Solids, total suspended30-day averagereport only (mg/L)all year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
Solids, settleabledaily maximumreport only (mL/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, total [as N]annual averagereport only (lb/d)all year001
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximum≤ 3 lb/d (alert, not enforceable)all year001
Nickel, total [as Ni]daily maximum≤ 1.2 lb/d (alert, not enforceable)all year001
Zinc, total [as Zn]daily maximum≤ 8.5 lb/d (alert, not enforceable)all year001
Phenolics, total recoverabledaily maximum≤ 1.4 lb/d (alert, not enforceable)all year001
Nitrogen, ammonia, total [as NH3]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia, total [as NH3]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plant30-day average≤ 6 MGDall year001
Chlorine, total residualdaily maximum≤ 1.2 mg/Lall year001
Coliform, fecal general30-day geometric mean≤ 200 #/100mLall year001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]30-day average≤ 1300 lb/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 2000 lb/dall year001
BOD, carbonaceous [5 day, 20 C]30-day averagereport only (mg/L)all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %all year001
Chromium, total [as Cr]daily maximumreport only (lb/d)all year01A

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0026786 · MCP: https://passage-data.com/mcp