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Greenwich TWP

Sewage treatment plant, major discharger, Greenwich Twp, New Jersey. NPDES permit NJ0030333 expired Dec 31, 2025; its limits still apply. Last 12 months: over a limit 5 times (last August 2026), 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: form A monthly (56 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
5 values over a limit, 56 required values missing, 2 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025pH, instantaneous minimum5.79 SU≥ 6 SU—
December 2025pH, instantaneous minimum5.82 SU≥ 6 SU—
January 2026Coliform, fecal general, instantaneous maximum2419.6 MPN/100mL≤ 400 MPN/100mL505%
August 2026Chlorine produced oxidants, daily maximum.1 kg/d≤ .076 kg/d32%
August 2026Coliform, fecal general, instantaneous maximum410.6 MPN/100mL≤ 400 MPN/100mL3%

Limits in force (56)

ParameterStatisticLimitMonths
Temperature, water deg. centigradeinstantaneous minimumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year
Temperature, water deg. centigradeinstantaneous minimumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year
Oxygen, dissolved [DO]daily average minimumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 114 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 170 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly average minimum≥ 89.25 %all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous minimumreport only (SU)all year
pHinstantaneous maximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 114 kg/dall year
Solids, total suspendedweekly average≤ 170 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedmonthly average minimum≥ 85 %all year
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Greaseinstantaneous maximum≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 35 mg/Lall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)all year
Nitrogen, ammonia total [as N]daily maximumreport only (kg/d)all year
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrate total [as N]monthly averagereport only (kg/d)all year
Nitrogen, nitrate total [as N]daily maximumreport only (kg/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Nickel, total recoverablemonthly averagereport only (ug/L)all year
Nickel, total recoverabledaily maximumreport only (ug/L)all year
Zinc, total recoverablemonthly averagereport only (ug/L)all year
Zinc, total recoverabledaily maximumreport only (ug/L)all year
Copper, total recoverablemonthly averagereport only (ug/L)all year
Copper, total recoverabledaily maximumreport only (ug/L)all year
Chlorine produced oxidantsmonthly average≤ .02 mg/Lall year
Chlorine produced oxidantsdaily maximum≤ .02 mg/Lall year
Chlorine produced oxidantsmonthly average≤ .076 kg/dall year
Chlorine produced oxidantsdaily maximum≤ .076 kg/dall year
Flow, in conduit or thru treatment plantindividual rolling averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Solids, total dissolvedmonthly averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Coliform, fecal generalmonthly average≤ 200 MPN/100mLall year
Coliform, fecal generalinstantaneous maximum≤ 400 MPN/100mLall year
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year

How strict are these limits?

Cited limits by parameter: New Jersey'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/NJ0030333 · MCP: https://passage-data.com/mcp