Portage/Catawba Island Wastewater Treatment Plant

NPDES permit OH0095435 · Minor POTW · effective, expires 2031-03-31 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 36 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli, MTEC-MF (2).

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 (109)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
001Solids, total suspendedMO AVG <= 30 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedWKLY MAX <= 45 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedWKLY MAX <= 45 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 152 kg/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG <= 77 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedWKLY MAX <= 228 kg/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedWKLY MAX <= 116 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
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 <= 1 mg/L May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]MO AVG <= 1 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, total [as P]WKLY MAX <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]WKLY MAX <= 1.5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, total [as P]MO AVG <= 5.1 kg/d May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]MO AVG <= 2.6 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, total [as P]WKLY MAX <= 7.6 kg/d May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]WKLY MAX <= 3.9 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001Phosphate, ortho, dissolved [as P]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Phosphate, ortho, dissolved [as P]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Nickel, total recoverableMO AVG report only Sep
001Nickel, total recoverableDAILY MX report only Sep
001Zinc, total recoverableMO AVG report only Sep
001Zinc, total recoverableDAILY MX report only Sep
001Cadmium, total recoverableMO AVG report only Sep
001Cadmium, total recoverableDAILY MX report only Sep
001Lead, total recoverableMO AVG report only Sep
001Lead, total recoverableDAILY MX report only Sep
001Chromium, total recoverableMO AVG report only Sep
001Chromium, total recoverableDAILY MX report only Sep
001Copper, total recoverableMO AVG report only Sep
001Copper, total recoverableDAILY MX report only Sep
001Chromium, hexavalent dissolved [as Cr]MO AVG report only Sep
001Chromium, hexavalent dissolved [as Cr]DAILY MX report only Sep
001E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWK GEOMN <= 284 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
001Chlorine, total residualDAILY MX <= .038 mg/L May, Jun, Jul, Aug, Sep, Oct
001Mercury, total low levelMO AVG <= 1.3 ng/L Jun, Aug
001Mercury, total low levelMO AVG <= 1.3 ng/L Mar, Dec
001Mercury, total low levelDAILY MX <= 1700 ng/L Jun, Aug
001Mercury, total low levelDAILY MX <= 1700 ng/L Mar, Dec
001Mercury, total low levelMO AVG <= .000007 kg/d Jun, Aug
001Mercury, total low levelMO AVG <= .000004 kg/d Mar, Dec
001Mercury, total low levelDAILY MX <= .00863 kg/d Jun, Aug
001Mercury, total low levelDAILY MX <= .00438 kg/d Mar, Dec
001Cyanide, free availableMO AVG report only Mar, Jun, Aug, Dec
001Cyanide, free availableDAILY MX report only Mar, Jun, Aug, Dec
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6.5 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 <= 25 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 40 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 40 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 127 kg/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 64 kg/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 203 kg/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY MAX <= 103 kg/d Jan, Feb, Mar, Apr, Nov, Dec
300OverflowsMO AVG report only all year
300OverflowsDAILY MX report only all year
581Nitrogen, ammonia in bottom depositsMO AVG report only Dec
581Nitrogen, ammonia in bottom depositsDAILY MX report only Dec
581Nitrogen, Kjeldahl, total [as N]MO AVG report only Dec
581Nitrogen, Kjeldahl, total [as N]DAILY MX report only Dec
581Phosphorous, total, in bottom depositsMO AVG report only Dec
581Phosphorous, total, in bottom depositsDAILY MX report only Dec
581Potassium, in bottom depositsMO AVG report only Dec
581Potassium, in bottom depositsDAILY MX report only Dec
581Arsenic, dry weightDAILY MX <= 75 mg/kg Dec
581Cadmium, in bottom deposits [dry wgt]DAILY MX <= 85 mg/kg Dec
581Copper in bottom deposits [dry wgt]DAILY MX <= 4300 mg/kg Dec
581Lead, total dry weight [as Pb]DAILY MX <= 840 mg/kg Dec
581Nickel, tot in bottom deposits [dry wgt]DAILY MX <= 420 mg/kg Dec
581Zinc in bottom deposits [dry wgt]DAILY MX <= 7500 mg/kg Dec
581Selenium, dry weightDAILY MX <= 100 mg/kg Dec
581Biosolids weight indluding admixturesMO AVG report only Dec
581Biosolids weight indluding admixturesDAILY MX report only Dec
581Fecal coliform in sludge, CFU/gramDAILY MX <= 2000000 CFU/g Dec
581Sludge weight, dryMO AVG report only Dec
581Sludge weight, dryDAILY MX report only Dec
581Mercury, tot in bot deposits [dry wgt]DAILY MX <= 57 mg/kg Dec
581Molybdenum, sludge, total, dry weight [as Mo]DAILY MX <= 75 mg/kg Dec
586Biosolids weight indluding admixturesMO AVG report only Dec
586Biosolids weight indluding admixturesDAILY MX report only Dec
588Sludge waste from secondary clarifiersMO AVG report only Dec
588Sludge waste from secondary clarifiersDAILY MX report only Dec
601pHDAILY MN report only all year
601pHDAILY MX report only all year
601Solids, total suspendedMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
601Solids, total suspendedMO AVG report only May, Jun, Jul, Aug, Sep, Oct
601Solids, total suspendedDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
601Solids, total suspendedDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
601Mercury, total low levelMO AVG report only Mar, Jun, Aug, Dec
601Mercury, total low levelDAILY MX report only Mar, Jun, Aug, Dec
601BOD, carbonaceous [5 day, 20 C]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
601BOD, carbonaceous [5 day, 20 C]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
601BOD, carbonaceous [5 day, 20 C]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
601BOD, carbonaceous [5 day, 20 C]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec

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