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Hightstown Boro

Sewage treatment plant, major discharger, Hightstown Boro, New Jersey. NPDES permit NJ0029475, in force until Sep 30, 2027. Last 12 months: over a limit once (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: form A monthly (43 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
2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimit
July 2026IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia, minimum< 6 %≥ 19 %

Limits in force (51)

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
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≤ 1 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 15 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≤ 38 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 5.7 kg/dMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 57 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
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≤ .87 kg/dall year
Phosphorus, total [as P]weekly average≤ 1.32 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
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coliinstantaneous maximumreport only (#/100mL)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 6 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 24 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 kg/dMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 61 kg/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 23 kg/dMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 91 kg/dJan, Feb, Mar, Apr, Nov, Dec
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≥ 19 %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/NJ0029475 · MCP: https://passage-data.com/mcp