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Parsippany Troy Hills TWP

Sewage treatment plant, major discharger, Parsippany-Troy Hills, New Jersey. NPDES permit NJ0024970, in force until Sep 30, 2027. Last 12 months: over a limit 7 times (last August 2026), 65 required values missing, 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: form A monthly (65 values)
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 4 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025E. coli, monthly geometric mean787.86 #/100mL≤ 126 #/100mL525%
October 2025Phosphorus, total [as P], monthly average.86 mg/L≤ .76 mg/L13%
November 2025E. coli, monthly geometric mean242.34 #/100mL≤ 126 #/100mL92%
November 2025E. coli, monthly geometric mean242.34 #/100mL≤ 126 #/100mL92%
November 2025Phosphorus, total [as P], monthly average1.01 mg/L≤ .76 mg/L33%
November 2025Phosphorus, total [as P], monthly average1.01 mg/L≤ .76 mg/L33%
August 2026E. coli, monthly geometric mean168.33 #/100mL≤ 126 #/100mL34%

Limits in force (69)

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 minimum≥ 5 mg/Lall year
Oxygen, dissolved [DO]instantaneous minimum≥ 4 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≤ 1800 kg/dall year
Solids, total suspendedweekly average≤ 2700 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (kg/d)all year
Solids, total suspendedweekly averagereport only (kg/d)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≤ 2 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 6.2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 121 kg/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 375 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 182 kg/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 454 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, nitrate total [as N]monthly average≤ 17.68 mg/Lall year
Nitrogen, nitrate total [as N]daily maximum≤ 30.25 mg/Lall year
Nitrogen, nitrate total [as N]monthly average≤ 1070.4 kg/dall year
Nitrogen, nitrate total [as N]daily maximum≤ 1832.1 kg/dall year
Phosphorus, total [as P]monthly average≤ .76 mg/Lall year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (kg/d)all year
Phosphorus, total [as P]weekly averagereport only (kg/d)all year
Chlorine produced oxidantsmonthly average≤ .02 mg/Lall year
Chlorine produced oxidantsdaily maximum≤ .03 mg/Lall year
Chlorine produced oxidantsmonthly average≤ 1.21 kg/dall year
Chlorine produced oxidantsdaily maximum≤ 1.8 kg/dall year
Dichlorobromomethanemonthly averagereport only (ug/L)all year
Dichlorobromomethanedaily maximum≤ 1.48 ug/Lall year
Dichlorobromomethanemonthly averagereport only (g/d)all year
Dichlorobromomethanedaily maximum≤ 89.8 g/dall year
Chlorodibromomethanemonthly averagereport only (ug/L)all year
Chlorodibromomethanedaily maximum≤ 1.08 ug/Lall year
Chlorodibromomethanemonthly averagereport only (g/d)all year
Chlorodibromomethanedaily maximum≤ 65.3 g/dall 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
Peracetic Acidmonthly averagereport only (mg/L)all year
Peracetic Acid1-day averagereport only (mg/L)all year
Peracetic Acidmonthly averagereport only (kg/d)all year
Peracetic Aciddaily maximumreport only (kg/d)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 12 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 485 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 726 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 averagereport only (kg/d)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (kg/d)all year
BOD, carbonaceous [5 day, 20 C]monthly average minimum≥ 85 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 38 %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/NJ0024970 · MCP: https://passage-data.com/mcp