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Middlefield Original Cheese Co-Op

Cheese, Natural And Processed, Middlefield, Ohio. NPDES permit OH0129526, in force until Dec 31, 2027. Last 12 months: over a limit 6 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (24 values)
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 26 reports late

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

Period endingParameterReportedLimitOver by
October 2025Solids, total dissolved- 180 deg. C, monthly average1833≤ 1500 mg/L22%
November 2025Solids, total dissolved- 180 deg. C, monthly average1773≤ 1500 mg/L18%
December 2025Solids, total dissolved- 180 deg. C, monthly average1718≤ 1500 mg/L15%
February 2026Solids, total dissolved- 180 deg. C, monthly average1529≤ 1500 mg/L2%
July 2026Solids, total dissolved- 180 deg. C, monthly average3254≤ 1500 mg/L117%
August 2026Solids, total dissolved- 180 deg. C, monthly average1641≤ 1500 mg/L9%

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year002
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year002
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly average≤ .78 kg/dall year002
BOD, 5-day, 20 deg. Cdaily maximum≤ 1.2 kg/dall year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9.5 SUall year002
Solids, total suspendedmonthly average≤ 20 mg/Lall year002
Solids, total suspendeddaily maximum≤ 30 mg/Lall year002
Solids, total suspendedmonthly average≤ .78 kg/dall year002
Solids, total suspendeddaily maximum≤ 1.2 kg/dall year002
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ 8.6 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]monthly average≤ .059 kg/dMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ .34 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct002
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Solids, total dissolved- 180 deg. Cmonthly average≤ 1500 mg/Lall year002
Nitrogen, ammonia in bottom depositsmonthly averagereport only (mg/kg)all year571
Nitrogen, ammonia in bottom depositsdaily maximumreport only (mg/kg)all year571
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/kg)all year571
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/kg)all year571
Nitrite plus nitrate in bottom depositsmonthly averagereport only (mg/kg)all year571
Nitrite plus nitrate in bottom depositsdaily maximumreport only (mg/kg)all year571
Phosphorous, total, in bottom depositsmonthly averagereport only (mg/kg)all year571
Phosphorous, total, in bottom depositsdaily maximumreport only (mg/kg)all year571
Potassium, in bottom depositsmonthly averagereport only (mg/kg)all year571
Potassium, in bottom depositsdaily maximumreport only (mg/kg)all year571
Sludge weight, drymonthly averagereport only (dry ton)all year571
Sludge weight, drydaily maximumreport only (dry ton)all year571
Solids, total, percentmonthly averagereport only (%)all year571
Solids, total, percentdaily maximumreport only (%)all year571
Solids, volatile % of total solidsmonthly averagereport only (%)all year571
Solids, volatile % of total solidsdaily maximumreport only (%)all year571
Sodium, sludge, total, dry weight [as Na]monthly averagereport only (mg/kg)all year571
Sodium, sludge, total, dry weight [as Na]daily maximumreport only (mg/kg)all year571
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec576
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec576
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec578
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec578

How strict are these limits?

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

Same industry: the 48 Food and Kindred Products permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0129526 · MCP: https://passage-data.com/mcp