CHATHAM TWP

NPDES permit NJ0020290 · Major POTW · effective, expires 2030-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

0values over a limit
10required values missing, on 10 form(s)
0of 10 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 27 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (64)

OutfallParameterStatisticLimitMonths
002Temperature, water deg. centigradeMINIMUM report only all year
002Temperature, water deg. centigradeMO AVG report only all year
002Temperature, water deg. centigradeMAXIMUM report only all year
002Temperature, water deg. centigradeMINIMUM report only all year
002Temperature, water deg. centigradeMO AVG report only all year
002Temperature, water deg. centigradeMAXIMUM report only all year
002TurbidityMO AVG report only all year
002TurbidityINST MAX report only all year
002Oxygen, dissolved [DO]DAILY MN report only all year
002Oxygen, dissolved [DO]MN WK AV >= 6 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002pHMINIMUM report only all year
002pHMAXIMUM report only all year
002Solids, total suspendedMO AVG <= 8 mg/L all year
002Solids, total suspendedWKLY AVG <= 12 mg/L all year
002Solids, total suspendedMO AVG <= 35 kg/d all year
002Solids, total suspendedWKLY AVG <= 52.5 kg/d all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedWKLY AVG report only all year
002Solids, total suspendedMO AV MN >= 85 % all year
002Oil & GreaseMO AVG <= 10 mg/L all year
002Oil & GreaseINST MAX <= 15 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
002Nitrogen, ammonia total [as N]WKLY AVG <= 3 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 8.7 kg/d all year
002Nitrogen, ammonia total [as N]WKLY AVG <= 13.1 kg/d all year
002Nitrogen, nitrate total [as N]MO AVG report only all year
002Nitrogen, nitrate total [as N]DAILY MX report only all year
002Nitrogen, nitrate total [as N]MO AVG report only all year
002Nitrogen, nitrate total [as N]DAILY MX report only all year
002Phosphorus, total [as P]MO AVG <= .76 mg/L all year
002Phosphorus, total [as P]DAILY MX report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Cyanide, total [as CN]MO AVG report only all year
002Cyanide, total [as CN]DAILY MX report only all year
002Zinc, total recoverableMO AVG report only all year
002Zinc, total recoverableDAILY MX report only all year
002Copper, total recoverableMO AVG report only all year
002Copper, total recoverableDAILY MX report only all year
002Di[2-ethylhexyl] phthalate [DEHP]MO AVG report only all year
002Di[2-ethylhexyl] phthalate [DEHP]DAILY MX report only all year
002Flow, in conduit or thru treatment plantRE report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002E. coliMOAV GEO <= 126 #/100mL all year
002E. coliINST MAX report only all year
002Solids, total dissolvedMO AVG report only all year
002Solids, total dissolvedWKLY AVG report only all year
002Solids, total dissolvedMO AVG report only all year
002Solids, total dissolvedWKLY AVG report only all year
002Mercury, total recoverableMO AVG report only all year
002Mercury, total recoverableDAILY MX report only all year
002Mercury, total recoverableMO AVG report only all year
002Mercury, total recoverableDAILY MX report only all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 8 mg/L all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 12 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 35 kg/d all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 52.5 kg/d all year
002BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
002BOD, carbonaceous [5 day, 20 C]MO AV MN >= 85 % all year
002IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM report only 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