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Mercury Plastics, LLC

Plastics Products, Middlefield, Ohio. NPDES permit OH0063908, in force until Oct 31, 2029. Last 12 months: over a limit 6 times (last June 2026), 2 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 006 form A monthly (8 values), outfall 601 form A monthly (8 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 28 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, daily maximum22≤ 18 mg/L22%
June 2026E. coli, MTEC-MF, monthly geometric mean341≤ 126 MPN/100mL171%
June 2026E. coli, MTEC-MF, weekly geometric mean341≤ 284 MPN/100mL20%
June 2026Solids, total suspended, daily maximum22≤ 18 mg/L22%
June 2026Solids, total suspended, monthly average.21≤ .15 kg/d40%
June 2026Solids, total suspended, monthly average22≤ 12 mg/L83%

Limits in force (39)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year006
Temperature, water deg. centigradedaily maximumreport only (deg C)all year006
Flow ratemonthly averagereport only (gal/d)all year006
Flow ratedaily maximumreport only (gal/d)all year006
pHdaily minimum≥ 6.5 SUall year006
pHdaily maximum≤ 9 SUall year006
Iron, total [as Fe]monthly averagereport only (ug/L)all year006
Iron, total [as Fe]daily maximumreport only (ug/L)all year006
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588
Temperature, water deg. centigrademonthly averagereport only (deg C)all year601
Temperature, water deg. centigradedaily maximumreport only (deg C)all year601
Flow ratemonthly averagereport only (gal/d)all year601
Flow ratedaily maximumreport only (gal/d)all year601
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LMar, Jun, Aug, Dec601
pHdaily minimum≥ 6.5 SUMar, Jun, Aug, Dec601
pHdaily maximum≤ 9 SUMar, Jun, Aug, Dec601
Solids, total suspendedmonthly average≤ 12 mg/LMar, Jun, Aug, Dec601
Solids, total suspendeddaily maximum≤ 18 mg/LMar, Jun, Aug, Dec601
Solids, total suspendedmonthly average≤ .15 kg/dMar, Jun, Aug, Dec601
Solids, total suspendeddaily maximum≤ .23 kg/dMar, Jun, Aug, Dec601
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year601
Oil and grease, hexane extr methoddaily maximum≤ .13 kg/dall year601
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun, Aug601
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMar, Dec601
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LJun, Aug601
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LMar, Dec601
Nitrogen, ammonia total [as N]monthly average≤ .013 kg/dJun, Aug601
Nitrogen, ammonia total [as N]monthly average≤ .038 kg/dMar, Dec601
Nitrogen, ammonia total [as N]weekly maximum≤ .019 kg/dJun, Aug601
Nitrogen, ammonia total [as N]weekly maximum≤ .057 kg/dMar, Dec601
Turbidity [severity]monthly averagereport only (severity)all year601
Turbidity [severity]daily maximumreport only (severity)all year601
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLJun, Aug601
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLJun, Aug601
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMar, Jun, Aug, Dec601
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/LMar, Jun, Aug, Dec601
BOD, carbonaceous [5 day, 20 C]monthly average≤ .13 kg/dMar, Jun, Aug, Dec601
BOD, carbonaceous [5 day, 20 C]daily maximum≤ .19 kg/dMar, Jun, Aug, Dec601

How strict are these limits?

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

Same industry: the 28 Rubber and Miscellaneous Plastics 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/OH0063908 · MCP: https://passage-data.com/mcp