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Lake Co Comm

Sewage treatment plant, major discharger, Madison, Ohio. NPDES permit OH0036790, in force until Jan 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (54 values), outfall 300 form A monthly (2 values), outfall 601 form A monthly (24 values)
Renewal application due
Aug 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 37 reports late

Limits in force (96)

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 average≤ 6 mg/Lall year001
Solids, total suspendedweekly maximum≤ 9 mg/Lall year001
Solids, total suspendedmonthly average≤ 114 kg/dall year001
Solids, total suspendedweekly maximum≤ 170 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 7.7 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 10.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 11.6 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 132 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 146 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 199 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 219 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 average≤ 1 mg/Lall year001
Phosphorus, total [as P]weekly maximum≤ 1.5 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 18.9 kg/dall year001
Phosphorus, total [as P]weekly maximum≤ 28.4 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)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Cadmium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Cadmium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Lead, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximum≤ 33 ug/Lall year001
Copper, total recoverabledaily maximum≤ .63 kg/dall year001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)Mar, Jun, Sep, 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≤ 2.1 ng/Lall year001
Mercury, total low leveldaily maximum≤ 1020 ng/Lall year001
Mercury, total low levelmonthly average≤ .00004 kg/dall year001
Mercury, total low leveldaily maximum≤ .0193 kg/dall year001
Cyanide, free availablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Cyanide, free availabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)Jul001
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)Jul001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)Jul001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)Jul001
Toxicity [acute], Pimephales promelas [Fathead Minnow]monthly averagereport only (tox acute)Jul001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox acute)Jul001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]monthly averagereport only (tox chronic)Jul001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox chronic)Jul001
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 average≤ 6 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 9 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 114 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 170 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Sludge weight, drymonthly averagereport only (dry ton)Dec588
Sludge weight, drydaily maximumreport only (dry ton)Dec588
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)Mar, Jun, Sep, Dec601
Cyanide, total [as CN]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec601
Nickel, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec601
Nickel, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec601
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec601
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec601
Cadmium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec601
Cadmium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec601
Lead, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec601
Lead, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec601
Chromium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec601
Chromium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec601
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)Mar, Jun, Sep, Dec601
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)Mar, Jun, Sep, Dec601
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

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0036790 · MCP: https://passage-data.com/mcp