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Roxbury TWP

Sewage treatment plant, major discharger, Roxbury Twp, New Jersey. NPDES permit NJ0022675 expired Mar 31, 2025; its limits still apply. Last 12 months: over a limit once (last October 2025), 4 required values missing, 5 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: form A monthly (50 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 5 required values missing, 4 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Chlorine produced oxidants, daily maximum< 1.4354 kg/d≤ .19 kg/d655%

Limits in force (62)

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≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 8 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 12 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 61 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 91 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≥ 85 %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≤ 16 mg/Lall year
Solids, total suspendedweekly average≤ 24 mg/Lall year
Solids, total suspendedmonthly average≤ 121 kg/dall year
Solids, total suspendedweekly average≤ 182 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≤ 1 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 13 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 7.6 kg/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 30.3 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 75.7 kg/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 98.41 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, nitrate total [as N]monthly average≤ 13.6 mg/Lall year
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrogen, nitrate total [as N]daily maximum≤ 16.5 mg/Lall year
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrogen, nitrate total [as N]monthly average≤ 103 kg/dall year
Nitrogen, nitrate total [as N]monthly averagereport only (kg/d)all year
Nitrogen, nitrate total [as N]daily maximum≤ 125 kg/dall year
Nitrogen, nitrate total [as N]daily maximumreport only (kg/d)all year
Phosphorus, total [as P]monthly average≤ .38 mg/LMay–Oct
Phosphorus, total [as P]monthly average≤ .68 mg/LJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]weekly averagereport only (mg/L)May–Oct
Phosphorus, total [as P]weekly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (kg/d)May–Oct
Phosphorus, total [as P]monthly averagereport only (kg/d)Jan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]weekly averagereport only (kg/d)May–Oct
Phosphorus, total [as P]weekly averagereport only (kg/d)Jan, Feb, Mar, Apr, Nov, Dec
Zinc, total recoverabledaily maximumreport 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≤ .15 kg/dall year
Chlorine produced oxidantsdaily maximum≤ .19 kg/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
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/NJ0022675 · MCP: https://passage-data.com/mcp