PARSIPPANY TROY HILLS TWP

NPDES permit NJ0024970 · Major POTW · effective, expires 2027-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

8values over a limit
65required values missing, on 1 form(s)
5of 10 forms filed late

Last period with anything received: 2026-06-30. Most often over: E. coli (4), Phosphorus, total [as P] (4).

Reporting

Reports are due about 26 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (69)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeINST MIN report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeINST MAX report only all year
001Temperature, water deg. centigradeINST MIN report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeINST MAX report only all year
001Oxygen, dissolved [DO]DLYAVMIN >= 5 mg/L all year
001Oxygen, dissolved [DO]INST MIN >= 4 mg/L all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001pHINST MIN report only all year
001pHINST MAX report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 1800 kg/d all year
001Solids, total suspendedWKLY AVG <= 2700 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AV MN >= 85 % all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseINST MAX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 6.2 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 7.5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 121 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 375 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 182 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 454 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, nitrate total [as N]MO AVG <= 17.68 mg/L all year
001Nitrogen, nitrate total [as N]DAILY MX <= 30.25 mg/L all year
001Nitrogen, nitrate total [as N]MO AVG <= 1070.4 kg/d all year
001Nitrogen, nitrate total [as N]DAILY MX <= 1832.1 kg/d all year
001Phosphorus, total [as P]MO AVG <= .76 mg/L all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Chlorine produced oxidantsMO AVG <= .02 mg/L all year
001Chlorine produced oxidantsDAILY MX <= .03 mg/L all year
001Chlorine produced oxidantsMO AVG <= 1.21 kg/d all year
001Chlorine produced oxidantsDAILY MX <= 1.8 kg/d all year
001DichlorobromomethaneMO AVG report only all year
001DichlorobromomethaneDAILY MX <= 1.48 ug/L all year
001DichlorobromomethaneMO AVG report only all year
001DichlorobromomethaneDAILY MX <= 89.8 g/d all year
001ChlorodibromomethaneMO AVG report only all year
001ChlorodibromomethaneDAILY MX <= 1.08 ug/L all year
001ChlorodibromomethaneMO AVG report only all year
001ChlorodibromomethaneDAILY MX <= 65.3 g/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001E. coliMOAV GEO <= 126 #/100mL all year
001E. coliINST MAX report only all year
001Peracetic AcidMO AVG report only all year
001Peracetic Acid1H report only all year
001Peracetic AcidMO AVG report only all year
001Peracetic AcidDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 8 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 12 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 485 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 726 kg/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AV MN >= 85 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 38 % all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states