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Suez Water NJ Olde Milford Estates WWTP

Sewage treatment plant, West Milford Twp, New Jersey. NPDES permit NJ0027677 expired Dec 31, 2024; its limits still apply. Last 12 months: over a limit 16 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: form A monthly (53 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
15 values over a limit, 2 required values missing, 2 of 12 reports late

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

All 16 values over a limit
Period endingParameterReportedLimitOver by
October 2025pH, instantaneous minimum5.3 SU≥ 6 SU—
January 2026Nitrogen, ammonia total [as N], daily maximum28.1 mg/L≤ 16 mg/L76%
January 2026Nitrogen, ammonia total [as N], monthly average22.8 mg/L≤ 12 mg/L90%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average minimum77 %≥ 85 %9%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average42 mg/L≤ 16 mg/L163%
February 2026BOD, carbonaceous [5 day, 20 C], weekly average60 mg/L≤ 24 mg/L150%
February 2026E. coli, monthly geometric mean1804 #/100mL≤ 126 #/100mL1332%
February 2026Nitrogen, ammonia total [as N], daily maximum31.5 mg/L≤ 16 mg/L97%
February 2026Nitrogen, ammonia total [as N], monthly average30.6 mg/L≤ 12 mg/L155%
February 2026Solids, total suspended, monthly average minimum62 %≥ 85 %27%
February 2026Solids, total suspended, monthly average77 mg/L≤ 30 mg/L157%
February 2026Solids, total suspended, weekly average95 mg/L≤ 45 mg/L111%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average minimum80 %≥ 85 %6%
March 2026IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia, minimum42 %≥ 52 %19%
March 2026Nitrogen, ammonia total [as N], daily maximum19 mg/L≤ 16 mg/L19%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average minimum75 %≥ 85 %12%

Limits in force (57)

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]minimum weekly average≥ 6 mg/Lall 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≤ 19.5 kg/dall year
Solids, total suspendedweekly average≤ 29.3 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≤ 5.8 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 7.9 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 16 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.8 kg/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.8 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 5.1 kg/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 10.4 kg/dJan, Feb, Mar, Apr, Nov, Dec
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
Phosphorus, total [as P]monthly average≤ .48 kg/dall year
Phosphorus, total [as P]weekly averagereport only (kg/d)all year
Copper, total recoverablemonthly averagereport only (ug/L)all year
Copper, total recoverabledaily maximumreport only (ug/L)all year
Copper, total recoverablemonthly averagereport only (g/d)all year
Copper, total recoverabledaily maximumreport only (g/d)all year
Chlorine produced oxidantsmonthly averagereport only (mg/L)all year
Chlorine produced oxidantsdaily maximumreport only (mg/L)all year
Chlorine produced oxidantsmonthly averagereport only (kg/d)all year
Chlorine produced oxidantsdaily maximumreport only (kg/d)all 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
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coliinstantaneous maximumreport only (#/100mL)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 24 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10.4 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15.6 kg/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average minimum≥ 85 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 52 %all year

How strict are these limits?

Cited limits by parameter: New Jersey'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/NJ0027677 · MCP: https://passage-data.com/mcp