City of Marietta Wastewater Treatment Plant

NPDES permit OH0026344 · Major NON-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
0required values missing, on 0 form(s)
0of 57 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (100)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN report only all year
001Solids, total suspendedMO AVG <= 27.1 mg/L all year
001Solids, total suspendedWKLY MAX <= 40.5 mg/L all year
001Solids, total suspendedMO AVG <= 411 kg/d all year
001Solids, total suspendedWKLY MAX <= 614 kg/d all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 12.7 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 13.1 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 192 kg/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 198 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphate, ortho, dissolved [as P]MO AVG report only all year
001Phosphate, ortho, dissolved [as P]DAILY MX report only all year
001Nickel, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Nickel, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Zinc, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Zinc, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Cadmium, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Cadmium, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Lead, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Lead, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Chromium, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Chromium, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Copper, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Copper, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Chromium, hexavalent dissolved [as Cr]MO AVG report only Mar, Jun, Aug, Dec
001Chromium, hexavalent dissolved [as Cr]DAILY MX report only Mar, Jun, Aug, Dec
001Coliform, fecal MF, MFC broth, 44.5 CMO GEOMN <= 1000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001Coliform, fecal MF, MFC broth, 44.5 CWK GEOMN <= 2000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWK GEOMN <= 240 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total low levelMO AVG report only Mar, Jun, Aug, Dec
001Mercury, total low levelDAILY MX report only Mar, Jun, Aug, Dec
001Cyanide, free availableMO AVG report only Mar, Jun, Aug, Dec
001Cyanide, free availableDAILY MX report only Mar, Jun, Aug, Dec
001Toxicity [acute], Ceriodaphnia dubiaMO AVG report only Sep
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only Sep
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MO AVG report only Sep
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX report only Sep
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6 SU all year
001Solids, total dissolved- 180 deg. CMO AVG report only all year
001Solids, total dissolved- 180 deg. CDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 22.6 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 35.9 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 343 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 544 kg/d all year
002Bypass VolumeMO AVG report only all year
002Bypass VolumeDAILY MX report only all year
002Bypass valveMO AVG report only all year
002Bypass valveDAILY MX report only all year
002Bypass of treatmentMO AVG report only all year
002Bypass of treatmentDAILY MX report only all year
300OverflowsMO AVG report only all year
300OverflowsDAILY MX report only all year
586Biosolids weight indluding admixturesMO AVG report only Dec
586Biosolids weight indluding admixturesDAILY MX report only Dec
588Sludge weight, dryMO AVG report only Dec
588Sludge weight, dryDAILY MX report only Dec
588Sludge waste from secondary clarifiersMO AVG report only Dec
588Sludge waste from secondary clarifiersDAILY MX report only Dec
601Solids, total suspendedMO AVG report only all year
601Solids, total suspendedDAILY MX report only all year
601Cyanide, total [as CN]MO AVG report only Mar, Jun, Aug, Dec
601Cyanide, total [as CN]DAILY MX report only Mar, Jun, Aug, Dec
601Nickel, total recoverableMO AVG report only Mar, Jun, Aug, Dec
601Nickel, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
601Zinc, total recoverableMO AVG report only Mar, Jun, Aug, Dec
601Zinc, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
601Cadmium, total recoverableMO AVG report only Mar, Jun, Aug, Dec
601Cadmium, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
601Lead, total recoverableMO AVG report only Mar, Jun, Aug, Dec
601Lead, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
601Chromium, total recoverableMO AVG report only Mar, Jun, Aug, Dec
601Chromium, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
601Copper, total recoverableMO AVG report only Mar, Jun, Aug, Dec
601Copper, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
601Chromium, hexavalent dissolved [as Cr]MO AVG report only Mar, Jun, Aug, Dec
601Chromium, hexavalent dissolved [as Cr]DAILY MX report only Mar, Jun, Aug, Dec
601Flow, maximum during 24 hr periodMO AVG report only all year
601Flow, maximum during 24 hr periodDAILY MX report only all year
601Mercury, total low levelMO AVG report only Mar, Jun, Aug, Dec
601Mercury, total low levelDAILY MX report only Mar, Jun, Aug, Dec
601pH, maximumDAILY MX report only all year
601pH, minimumDAILY MN report only all year
601BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
601BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
801%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiaMO AVG report only Sep
801%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiaDAILY MX report only Sep
801%Effect Static Renewal 96Hr Acute Pimephales promelasMO AVG report only Sep
801%Effect Static Renewal 96Hr Acute Pimephales promelasDAILY MX report only Sep

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