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Greenport (T)

Sewage treatment plant, major discharger, Hudson, New York. NPDES permit NY0030988, in force until Apr 30, 2030. Last 12 months: over a limit 8 times (last August 2026), 1 required value missing, 2 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (36 values), outfall 001 form T quarterly (4 values), outfall 002 form A monthly (24 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 5 required values missing, 6 of 21 reports late

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

Period endingParameterReportedLimitOver by
March 2026Carbonaceous oxygen demand, % removal, monthly average minimum77 %≥ 85 %53%
March 2026Solids, settleable, daily maximum60 mL/L≤ .3 mL/L19900%
March 2026Solids, suspended percent removal, monthly average minimum37 %≥ 85 %320%
March 2026Solids, total suspended, 7-day average216 mg/L≤ 45 mg/L380%
March 2026Solids, total suspended, 7-day average2376.09 lb/d≤ 510 lb/d366%
March 2026Solids, total suspended, monthly average58 mg/L≤ 30 mg/L93%
March 2026Solids, total suspended, monthly average637.89 lb/d≤ 340 lb/d88%
August 2026Solids, settleable, daily maximum2 mL/L≤ .3 mL/L567%

Limits in force (66)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen demand, ultimatedaily maximum≤ 72 mg/LJun–Oct001
Oxygen demand, ultimatedaily maximum≤ 810 lb/dJun–Oct001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 340 lb/dall year001
Solids, total suspended7-day average≤ 510 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspended7-day averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, total suspended7-day averagereport only (lb/d)all year001
Solids, settleablemonthly averagereport only (mL/L)all year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
Solids, settleablemonthly averagereport only (mL/L)all year001
Solids, settleabledaily maximumreport only (mL/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/LJun–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 1.35 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .03 mg/LMay–Oct001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1.4 tox acute (alert, not enforceable)all year001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 5.6 tox chronic (alert, not enforceable)all year001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1.4 tox acute (alert, not enforceable)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 5.6 tox chronic (alert, not enforceable)all year001
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year001
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 280 lb/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 450 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]7-day averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year001
BOD, carbonaceous [5 day, 20 C]7-day averagereport only (lb/d)all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
Oxygen demand, ultimatedaily maximum≤ 72 mg/LJun–Oct002
Oxygen demand, ultimatedaily maximumreport only (lb/d)Jun–Oct002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendeddaily maximum≤ 30 mg/Lall year002
Solids, total suspendeddaily maximumreport only (lb/d)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Solids, total suspendeddaily maximumreport only (lb/d)all year002
Solids, settleabledaily maximum≤ .3 mL/Lall year002
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJun–Oct002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualdaily maximum≤ .03 mg/LMay–Oct002
Flow, totalmonthly totalreport only (gal)all year002
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year002
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct002
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (lb/d)all year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (lb/d)all year002
Solids, suspended percent removalmonthly average minimum≥ 85 %all year002
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 85 %all year002

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/NY0030988 · MCP: https://passage-data.com/mcp