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

Northport (V)

Sewage treatment plant, Northport, New York. NPDES permit NY0024881, in force until Sep 30, 2028. Last 12 months: over a limit 6 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (29 values), form N monthly (15 values)
Renewal application due
Apr 3, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimitOver by
April 2026BOD, carbonaceous [5 day, 20 C], 30-day average104 lb/d≤ 90 lb/d16%
April 2026BOD, carbonaceous [5 day, 20 C], 30-day average63 mg/L≤ 25 mg/L152%
April 2026Carbonaceous oxygen demand, % removal, monthly average minimum77.68 %≥ 85 %49%
April 2026Solids, suspended percent removal, monthly average minimum< 80.48 %≥ 85 %—
June 2026Coliform, fecal general, 30-day geometric mean408 #/100mL≤ 200 #/100mL104%
June 2026Coliform, fecal general, 7-day geometric mean> 1600 #/100mL≤ 400 #/100mL—

Limits in force (46)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 110 lb/dall year
Solids, total suspended7-day average≤ 170 lb/dall year
Solids, total suspended30-day averagereport only (mg/L)all year
Solids, total suspended7-day averagereport only (mg/L)all year
Solids, total suspended30-day averagereport only (lb/d)all year
Solids, total suspended7-day 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]individual rolling 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, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)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
Total agg concentration #1monthly averagereport only (lb/d)all year
Total agg concentration #1rolling average≤ 213 lb/dall year
Flow, in conduit or thru treatment plantmonthly average≤ .45 MGDall year
Chlorine, total residualdaily maximum≤ .075 mg/Lall year
Enterococci30-day geometric mean≤ 35 #/100mLall year
Enterococci30-day geometric meanreport only (#/100mL)all year
Enterococcidaily maximumreport only (#/100mL)all year
Enterococcidaily maximumreport only (#/100mL)all year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year
Coliform, total generalmonthly median≤ 700 #/100mLall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 90 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 150 lb/dall year
BOD, carbonaceous [5 day, 20 C]30-day averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]7-day averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]30-day averagereport only (lb/d)all year
BOD, carbonaceous [5 day, 20 C]7-day averagereport only (lb/d)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

· 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/NY0024881 · MCP: https://passage-data.com/mcp