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Williams County Commissioners

Sewage treatment plant, Stryker, Ohio. NPDES permit OH0079073, in force until Nov 30, 2027. Last 12 months: over a limit 4 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (6 values)
Renewal application due
Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 13 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], monthly average.287≤ .27 kg/d6%
December 2025Nitrogen, ammonia total [as N], monthly average13.8≤ 12.9 mg/L7%
June 2026Solids, total suspended, monthly average.65≤ .63 kg/d3%
June 2026Solids, total suspended, monthly average31≤ 30 mg/L3%

Limits in force (30)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Flow ratemonthly averagereport only (gal/d)all year001
Flow ratedaily maximumreport only (gal/d)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LMar, Jun, Aug, Dec001
pHdaily minimum≥ 6.5 SUMar, Jun, Aug, Dec001
pHdaily maximum≤ 9 SUMar, Jun, Aug, Dec001
Solids, total suspendedmonthly average≤ 30 mg/LMar, Jun, Aug, Dec001
Solids, total suspendedweekly maximum≤ 45 mg/LMar, Jun, Aug, Dec001
Solids, total suspendedmonthly average≤ .63 kg/dMar, Jun, Aug, Dec001
Solids, total suspendedweekly maximum≤ .94 kg/dMar, Jun, Aug, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LJun, Aug001
Nitrogen, ammonia total [as N]monthly average≤ 12.9 mg/LMar, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 4.4 mg/LJun, Aug001
Nitrogen, ammonia total [as N]weekly maximum≤ 19.4 mg/LMar, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .06 kg/dJun, Aug001
Nitrogen, ammonia total [as N]monthly average≤ .27 kg/dMar, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .092 kg/dJun, Aug001
Nitrogen, ammonia total [as N]weekly maximum≤ .4 kg/dMar, Dec001
Turbidity [severity]monthly averagereport only (severity)all year001
Turbidity [severity]daily maximumreport only (severity)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLJun, Aug001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLJun, Aug001
Chlorine, total residualdaily maximum≤ .019 mg/LJun, Aug001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/LMar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ .21 kg/dMar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .31 kg/dMar, Jun, Aug, Dec001
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0079073 · MCP: https://passage-data.com/mcp