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Trenton City Sewer Utility

Sewage treatment plant, major discharger, Trenton City, New Jersey. NPDES permit NJ0020923 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 33 times (last August 2026), 83 required values missing, 10 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: outfall 001 form A monthly (51 values), outfall 002 form A monthly (6 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
7 values over a limit, 98 required values missing, 12 of 24 reports late

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

All 33 values over a limit
Period endingParameterReportedLimitOver by
February 2026Solids, total suspended, monthly average31.86 mg/L≤ 30 mg/L6%
March 2026Chlorine produced oxidants, daily maximum1.98 mg/L≤ .209 mg/L847%
March 2026Chlorine produced oxidants, daily maximum85 kg/d≤ 15.82 kg/d437%
March 2026Chlorine produced oxidants, monthly average1.56 mg/L≤ .185 mg/L743%
March 2026Chlorine produced oxidants, monthly average66.93 kg/d≤ 14.02 kg/d377%
March 2026Oxygen, dissolved [DO], 1-day average6.44 mg/L≤ 5 mg/L29%
March 2026Solids, total suspended, monthly average30.79 mg/L≤ 30 mg/L3%
April 2026BOD, 5-day, 20 deg. C, monthly average32.7 mg/L≤ 30 mg/L9%
April 2026Chlorine produced oxidants, daily maximum1.95 mg/L≤ .209 mg/L833%
April 2026Chlorine produced oxidants, daily maximum71.63 kg/d≤ 15.82 kg/d353%
April 2026Chlorine produced oxidants, monthly average1.58 mg/L≤ .185 mg/L754%
April 2026Chlorine produced oxidants, monthly average57.87 kg/d≤ 14.02 kg/d313%
April 2026Oxygen, dissolved [DO], 1-day average5.69 mg/L≤ 5 mg/L14%
May 2026Chlorine produced oxidants, daily maximum1.97 mg/L≤ .209 mg/L843%
May 2026Chlorine produced oxidants, daily maximum70.55 kg/d≤ 15.82 kg/d346%
May 2026Chlorine produced oxidants, monthly average1.48 mg/L≤ .185 mg/L700%
May 2026Chlorine produced oxidants, monthly average53.13 kg/d≤ 14.02 kg/d279%
May 2026Oxygen, dissolved [DO], 1-day average5.63 mg/L≤ 5 mg/L13%
June 2026Chlorine produced oxidants, daily maximum1.98 mg/L≤ .209 mg/L847%
June 2026Chlorine produced oxidants, daily maximum72.39 kg/d≤ 15.82 kg/d358%
June 2026Chlorine produced oxidants, monthly average1.49 mg/L≤ .185 mg/L705%
June 2026Chlorine produced oxidants, monthly average54.62 kg/d≤ 14.02 kg/d290%
June 2026Oxygen, dissolved [DO], 1-day average5.61 mg/L≤ 5 mg/L12%
July 2026Chlorine produced oxidants, daily maximum1.98 mg/L≤ .209 mg/L847%
July 2026Chlorine produced oxidants, daily maximum74.91 kg/d≤ 15.82 kg/d374%
July 2026Chlorine produced oxidants, monthly average1.54 mg/L≤ .185 mg/L732%
July 2026Chlorine produced oxidants, monthly average58.3 kg/d≤ 14.02 kg/d316%
July 2026Oxygen, dissolved [DO], 1-day average5.54 mg/L≤ 5 mg/L11%
August 2026Chlorine produced oxidants, daily maximum1.95 mg/L≤ .209 mg/L833%
August 2026Chlorine produced oxidants, daily maximum82.73 kg/d≤ 15.82 kg/d423%
August 2026Chlorine produced oxidants, monthly average1.43 mg/L≤ .185 mg/L673%
August 2026Chlorine produced oxidants, monthly average60.75 kg/d≤ 14.02 kg/d333%
August 2026Oxygen, dissolved [DO], 1-day average5.71 mg/L≤ 5 mg/L14%

Limits in force (108)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademinimumreport only (deg C)all year001
Temperature, water deg. centigrademinimumreport only (deg C)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigrademaximumreport only (deg C)all year001
Temperature, water deg. centigrademaximumreport only (deg C)all year001
Temperature, water deg. centigrademinimumreport only (deg C)all year001
Temperature, water deg. centigrademinimumreport only (deg C)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigrademaximumreport only (deg C)all year001
Temperature, water deg. centigrademaximumreport only (deg C)all year001
Oxygen, dissolved [DO]1-day average≤ 5 mg/Lall year001
Oxygen, dissolved [DO]1-day average≤ 5 mg/Lall year001
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/Lall year001
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 1624 kg/dall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 1624 kg/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 3410 kg/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 3410 kg/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average minimum≥ 88.5 %all year001
BOD, 5-day, 20 deg. Cmonthly average minimum≥ 88.5 %all year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
pHminimumreport only (SU)all year001
pHminimumreport only (SU)all year001
pHmaximumreport only (SU)all year001
pHmaximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 2270 kg/dall year001
Solids, total suspendedmonthly average≤ 2270 kg/dall year001
Solids, total suspendedweekly average≤ 3410 kg/dall year001
Solids, total suspendedweekly average≤ 3410 kg/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Solids, total suspendedmonthly average minimum≥ 85 %all year001
Solids, total suspendedmonthly average minimum≥ 85 %all year001
Oil & Greasemonthly average≤ 10 mg/Lall year001
Oil & Greasemonthly average≤ 10 mg/Lall year001
Oil & Greasemaximum≤ 15 mg/Lall year001
Oil & Greasemaximum≤ 15 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 35 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 35 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (kg/d)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (kg/d)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (kg/d)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (kg/d)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (kg/d)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (kg/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]weekly averagereport only (mg/L)all year001
Phosphorus, total [as P]weekly averagereport only (mg/L)all year001
Chlorine produced oxidantsmonthly average≤ .185 mg/Lall year001
Chlorine produced oxidantsmonthly average≤ .185 mg/Lall year001
Chlorine produced oxidantsdaily maximum≤ .209 mg/Lall year001
Chlorine produced oxidantsdaily maximum≤ .209 mg/Lall year001
Chlorine produced oxidantsmonthly average≤ 14.02 kg/dall year001
Chlorine produced oxidantsmonthly average≤ 14.02 kg/dall year001
Chlorine produced oxidantsdaily maximum≤ 15.82 kg/dall year001
Chlorine produced oxidantsdaily maximum≤ 15.82 kg/dall year001
Flow, in conduit or thru treatment plantindividual rolling averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantindividual rolling averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Coliform, fecal generalmonthly average≤ 200 #/100mLall year001
Coliform, fecal generalmonthly average≤ 200 #/100mLall year001
Coliform, fecal generalweekly average≤ 400 #/100mLall year001
Coliform, fecal generalweekly average≤ 400 #/100mLall year001
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimum≥ 50 %all year001
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimum≥ 50 %all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year001
Precipitation, total defined period/inmonthly totalreport only (in)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
Solids/Floatablesmonthly totalreport only (yd3)all year002
Duration of dischargemonthly totalreport only (d)all year002
Flow, totalmonthly totalreport only (Mgal/mo)all year002

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/NJ0020923 · MCP: https://passage-data.com/mcp