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Greenport (V)

Sewage treatment plant, major discharger, Greenport, New York. NPDES permit NY0020079 expired Jul 31, 2018; its limits still apply. Last 12 months: no values over a limit, 2 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form F monthly (25 values), form N monthly (19 values), form Z monthly (1 value), form Q quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 28 reports late

Limits in force (49)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
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≤ 160 lb/dall year
Solids, total suspended7-day average≤ 240 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, settleabledaily maximum≤ .3 mL/Lall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Copper, total [as Cu]daily maximum≤ .7 lb/d (alert, not enforceable)all year
Zinc, total [as Zn]daily maximumreport only (lb/d)all year
Total agg concentration #4monthly averagereport only (mg/L)all year
Total agg concentration #4monthly averagereport only (lb/d)all year
Total agg concentration #4monthly averagereport only (mg/L)all year
Total agg concentration #4monthly averagereport only (lb/d)all year
Total agg concentration #1rolling average≤ 213 lb/dall year
Total agg concentration #2individual rolling averagereport only (lb/d)all year
Total agg concentration #3monthly averagereport only (lb/d)all year
Nitrogen, ammonia, total [as NH3]monthly averagereport only (mg/L)all year
Nitrogen, ammonia, total [as NH3]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .65 MGDall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualdaily maximum≤ 1.8 mg/Lall year
Enterococcidaily maximumreport only (#/100mL)all year
Mercury, total [as Hg]daily maximumreport only (ng/L)all year
Coliform, fecal general30-day geometric mean≤ 200 MPN/100mLall year
Coliform, fecal general7-day geometric mean≤ 400 MPN/100mLall year
Coliform, total generalmonthly median≤ 700 MPN/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 140 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 220 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year
Solids, suspended percent removalmonthly average minimum≥ 70 %all year
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 75 %all year

How strict are these limits?

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/NY0020079 · MCP: https://passage-data.com/mcp