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Portage Co Water Resources

Sewage treatment plant, Ravenna, Ohio. NPDES permit OH0038768, in force until Dec 31, 2028. Last 12 months: over a limit 2 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (30 values), outfall 300 form A monthly (2 values), outfall 601 form A monthly (4 values), outfall 801 form A monthly (10 values), outfall 901 form A monthly (14 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 53 reports late

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

Period endingParameterReportedLimitOver by
April 2026Oxygen, dissolved [DO], daily minimum.5≥ 6 mg/L92%
May 2026E. coli, MTEC-MF, weekly geometric mean435.2≤ 284 MPN/100mL53%

Limits in force (90)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedweekly maximum≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ 5.82 kg/dall year001
Solids, total suspendedweekly maximum≤ 8.73 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/LMar, Jun, Sep, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 4.8 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 1.65 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 7.2 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .533 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 2.33 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .8 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 3.49 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Cyanide, free-water plus wastewatersmonthly averagereport only (mg/L)Jun, Dec001
Cyanide, free-water plus wastewatersdaily maximumreport only (mg/L)Jun, Dec001
Nickel, total recoverablemonthly averagereport only (ug/L)Jun, Dec001
Nickel, total recoverabledaily maximumreport only (ug/L)Jun, Dec001
Zinc, total recoverablemonthly averagereport only (ug/L)Jun, Dec001
Zinc, total recoverabledaily maximumreport only (ug/L)Jun, Dec001
Cadmium, total recoverablemonthly averagereport only (ug/L)Jun, Dec001
Cadmium, total recoverabledaily maximumreport only (ug/L)Jun, Dec001
Lead, total recoverablemonthly average≤ 17 ug/LJun, Dec001
Lead, total recoverabledaily maximum≤ 336 ug/LJun, Dec001
Lead, total recoverablemonthly average≤ .0082 kg/dJun, Dec001
Lead, total recoverabledaily maximum≤ .16 kg/dJun, Dec001
Chromium, total recoverablemonthly averagereport only (ug/L)Jun, Dec001
Chromium, total recoverabledaily maximumreport only (ug/L)Jun, Dec001
Copper, total recoverablemonthly average≤ 18 ug/LJun, Dec001
Copper, total recoverabledaily maximum≤ 29 ug/LJun, Dec001
Copper, total recoverablemonthly average≤ .0087 kg/dJun, Dec001
Copper, total recoverabledaily maximum≤ .014 kg/dJun, Dec001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)Jun, Dec001
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)Jun, Dec001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Mercury, total low levelmonthly average≤ 1.3 ng/LJun, Dec001
Mercury, total low leveldaily maximum≤ 1700 ng/LJun, Dec001
Mercury, total low levelmonthly average≤ .000001 kg/dJun, Dec001
Mercury, total low leveldaily maximum≤ .000824 kg/dJun, Dec001
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)Jan, Mar, May, Jul, Sep, Nov001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)Jan, Mar, May, Jul, Sep, Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4.85 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 7.27 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588
Solids, total suspendedmonthly averagereport only (mg/L)all year601
Solids, total suspendeddaily maximumreport only (mg/L)all year601
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year601
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year601
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)May–Oct801
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)May–Oct801
Temperature, water deg. centigrademonthly averagereport only (deg C)Mar, Jun, Sep, Dec901
Temperature, water deg. centigradedaily maximumreport only (deg C)Mar, Jun, Sep, Dec901
pHdaily minimumreport only (SU)Mar, Jun, Sep, Dec901
pHdaily maximumreport only (SU)Mar, Jun, Sep, Dec901
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)May–Oct901
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)May–Oct901

How strict are these limits?

Cited limits by parameter: Ohio's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/OH0038768 · MCP: https://passage-data.com/mcp