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City of Sandusky WPC

Sewage treatment plant, major discharger, Sandusky, Ohio. NPDES permit OH0027332, in force until Apr 30, 2031. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (48 values), outfall 004 form A monthly (4 values), outfall 005 form A monthly (4 values), outfall 006 form A monthly (4 values), outfall 007 form A monthly (4 values), outfall 008 form A monthly (4 values), and 13 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 226 reports late

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

Period endingParameterReportedLimit
September 2026pH, minimum, daily minimum5.9≥ 6.5 SU

Limits in force (184)

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 minimumreport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
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 average≤ 1 mg/Lall year001
Phosphorus, total [as P]weekly maximum≤ 1.5 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 59 kg/dall year001
Phosphorus, total [as P]weekly maximum≤ 89 kg/dall year001
Phosphate, ortho, dissolved [as P]monthly averagereport only (mg/L)all year001
Phosphate, ortho, dissolved [as P]daily maximumreport only (mg/L)all year001
Nickel, total recoverablemonthly averagereport only (ug/L)all year001
Nickel, total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)all year001
Zinc, total recoverabledaily maximumreport only (ug/L)all year001
Cadmium, total recoverablemonthly averagereport only (ug/L)all year001
Cadmium, total recoverabledaily maximumreport only (ug/L)all year001
Lead, total recoverablemonthly averagereport only (ug/L)all year001
Lead, total recoverabledaily maximumreport only (ug/L)all year001
Chromium, total recoverablemonthly averagereport only (ug/L)all year001
Chromium, total recoverabledaily maximumreport only (ug/L)all year001
Copper, total recoverablemonthly averagereport only (ug/L)all year001
Copper, total recoverabledaily maximumreport only (ug/L)all year001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)all year001
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 189 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≤ 2.2 ng/Lall year001
Mercury, total low leveldaily maximum≤ 1100 ng/Lall year001
Mercury, total low levelmonthly average≤ .00013 kg/dall year001
Mercury, total low leveldaily maximum≤ .065 kg/dall year001
Cyanide, free availablemonthly averagereport only (ug/L)all year001
Cyanide, free availabledaily maximumreport only (ug/L)all year001
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)Aug001
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)Aug001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)Aug001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)Aug001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 1 tox acuteJun, Aug001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]monthly averagereport only (tox chronic)Aug001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox chronic)Aug001
pH, maximumdaily maximum≤ 9 SUall year001
pH, minimumdaily minimum≥ 6.5 SUall year001
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year001
Overflowsmonthly averagereport only (occur/mo)all year004
Overflowsdaily maximumreport only (occur/mo)all year004
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year004
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year004
Overflowsmonthly averagereport only (occur/mo)all year005
Overflowsdaily maximumreport only (occur/mo)all year005
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year005
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year005
Overflowsmonthly averagereport only (occur/mo)all year006
Overflowsdaily maximumreport only (occur/mo)all year006
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year006
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year006
Overflowsmonthly averagereport only (occur/mo)all year007
Overflowsdaily maximumreport only (occur/mo)all year007
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year007
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year007
Overflowsmonthly averagereport only (occur/mo)all year008
Overflowsdaily maximumreport only (occur/mo)all year008
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year008
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year008
Overflowsmonthly averagereport only (occur/mo)all year009
Overflowsdaily maximumreport only (occur/mo)all year009
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year009
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year009
Overflowsmonthly averagereport only (occur/mo)all year011
Overflowsdaily maximumreport only (occur/mo)all year011
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year011
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year011
Overflowsmonthly averagereport only (occur/mo)all year013
Overflowsdaily maximumreport only (occur/mo)all year013
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year013
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year013
Overflowsmonthly averagereport only (occur/mo)all year014
Overflowsdaily maximumreport only (occur/mo)all year014
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year014
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year014
Overflowsmonthly averagereport only (occur/mo)all year015
Overflowsdaily maximumreport only (occur/mo)all year015
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year015
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year015
Overflowsmonthly averagereport only (occur/mo)all year016
Overflowsdaily maximumreport only (occur/mo)all year016
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year016
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year016
Overflowsmonthly averagereport only (occur/mo)all year017
Overflowsdaily maximumreport only (occur/mo)all year017
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year017
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year017
Overflowsmonthly averagereport only (occur/mo)all year019
Overflowsdaily maximumreport only (occur/mo)all year019
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year019
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year019
Overflowsmonthly averagereport only (occur/mo)all year021
Overflowsdaily maximumreport only (occur/mo)all year021
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year021
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year021
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Nitrogen, ammonia in bottom depositsmonthly averagereport only (mg/kg)Mar, Jun, Sep, Dec581
Nitrogen, ammonia in bottom depositsdaily maximumreport only (mg/kg)Mar, Jun, Sep, Dec581
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/kg)Mar, Jun, Sep, Dec581
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/kg)Mar, Jun, Sep, Dec581
Phosphorous, total, in bottom depositsmonthly averagereport only (mg/kg)Mar, Jun, Sep, Dec581
Phosphorous, total, in bottom depositsdaily maximumreport only (mg/kg)Mar, Jun, Sep, Dec581
Potassium, in bottom depositsmonthly averagereport only (mg/kg)Mar, Jun, Sep, Dec581
Potassium, in bottom depositsdaily maximumreport only (mg/kg)Mar, Jun, Sep, Dec581
Arsenic, dry weightdaily maximum≤ 75 mg/kgMar, Jun, Sep, Dec581
Cadmium, in bottom deposits [dry wgt]daily maximum≤ 85 mg/kgMar, Jun, Sep, Dec581
Copper in bottom deposits [dry wgt]daily maximum≤ 4300 mg/kgMar, Jun, Sep, Dec581
Lead, total dry weight [as Pb]daily maximum≤ 840 mg/kgMar, Jun, Sep, Dec581
Nickel, tot in bottom deposits [dry wgt]daily maximum≤ 420 mg/kgMar, Jun, Sep, Dec581
Zinc in bottom deposits [dry wgt]daily maximum≤ 7500 mg/kgMar, Jun, Sep, Dec581
Selenium, dry weightdaily maximum≤ 100 mg/kgMar, Jun, Sep, Dec581
Fecal coliformdaily maximum≤ 2000000 MPN/gMar, Jun, Sep, Dec581
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Mar, Jun, Sep, Dec581
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Mar, Jun, Sep, Dec581
Sludge weight, drymonthly averagereport only (dry ton)Mar, Jun, Sep, Dec581
Sludge weight, drydaily maximumreport only (dry ton)Mar, Jun, Sep, Dec581
Mercury, tot in bot deposits [dry wgt]daily maximum≤ 57 mg/kgMar, Jun, Sep, Dec581
Molybdenum, sludge, total, dry weight [as Mo]daily maximum≤ 75 mg/kgMar, Jun, Sep, Dec581
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec586
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec586
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
Cyanide, total [as CN]monthly averagereport only (mg/L)all year601
Cyanide, total [as CN]daily maximumreport only (mg/L)all year601
Nickel, total recoverablemonthly averagereport only (ug/L)all year601
Nickel, total recoverabledaily maximumreport only (ug/L)all year601
Zinc, total recoverablemonthly averagereport only (ug/L)all year601
Zinc, total recoverabledaily maximumreport only (ug/L)all year601
Cadmium, total recoverablemonthly averagereport only (ug/L)all year601
Cadmium, total recoverabledaily maximumreport only (ug/L)all year601
Lead, total recoverablemonthly averagereport only (ug/L)all year601
Lead, total recoverabledaily maximumreport only (ug/L)all year601
Chromium, total recoverablemonthly averagereport only (ug/L)all year601
Chromium, total recoverabledaily maximumreport only (ug/L)all year601
Copper, total recoverablemonthly averagereport only (ug/L)all year601
Copper, total recoverabledaily maximumreport only (ug/L)all year601
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)all year601
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)all year601
Mercury, total low levelmonthly averagereport only (ng/L)all year601
Mercury, total low leveldaily maximumreport only (ng/L)all year601
pH, maximumdaily maximumreport only (SU)all year601
pH, minimumdaily minimumreport only (SU)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
Solids, total suspendedmonthly average≤ 19 mg/Lall year602
Solids, total suspendedweekly maximum≤ 29 mg/Lall year602
Solids, total suspendedmonthly average≤ 1131 kg/dall year602
Solids, total suspendedweekly maximum≤ 1726 kg/dall year602
Nitrogen, ammonia total [as N]monthly average≤ 14 mg/Lall year602
Nitrogen, ammonia total [as N]weekly maximum≤ 21 mg/Lall year602
Nitrogen, ammonia total [as N]monthly average≤ 833 kg/dall year602
Nitrogen, ammonia total [as N]weekly maximum≤ 1250 kg/dall year602
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year602
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year602
BOD, carbonaceous [5 day, 20 C]monthly average≤ 14 mg/Lall year602
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 21 mg/Lall year602
BOD, carbonaceous [5 day, 20 C]monthly average≤ 833 kg/dall year602
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1250 kg/dall year602
Solids, total suspendeddaily maximumreport only (mg/L)all year603
Bypass Volumemonthly averagereport only (Mgal)all year603
Bypass Volumedaily maximumreport only (Mgal)all year603
Bypass valvemonthly averagereport only (occur/mo)all year603
Bypass valvedaily maximumreport only (occur/mo)all year603
Bypass of treatmentmonthly averagereport only (hr/mo)all year603
Bypass of treatmentdaily maximumreport only (hr/mo)all year603

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/OH0027332 · MCP: https://passage-data.com/mcp