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North Quarry Estates

Sewage treatment plant, Marion, Ohio. NPDES permit OH0122297, in force until Apr 30, 2031. Last 12 months: over a limit 15 times (last January 2026), 24 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (24 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
27 values over a limit, 6 required values missing, 0 of 13 reports late

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

All 15 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], monthly average2.29≤ .8 kg/d186%
October 2025BOD, carbonaceous [5 day, 20 C], monthly average24.6≤ 10 mg/L146%
October 2025BOD, carbonaceous [5 day, 20 C], weekly maximum2.29≤ 1.1 kg/d108%
October 2025BOD, carbonaceous [5 day, 20 C], weekly maximum24.6≤ 15 mg/L64%
October 2025Solids, total suspended, monthly average8.6≤ .9 kg/d856%
October 2025Solids, total suspended, monthly average92≤ 12 mg/L667%
October 2025Solids, total suspended, weekly maximum8.6≤ 1.4 kg/d514%
October 2025Solids, total suspended, weekly maximum92≤ 18 mg/L411%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average.97≤ .8 kg/d21%
December 2025BOD, carbonaceous [5 day, 20 C], weekly maximum1.5≤ 1.1 kg/d36%
December 2025Solids, total suspended, weekly maximum1.5≤ 1.4 kg/d7%
January 2026Solids, total suspended, monthly average2.6≤ .9 kg/d189%
January 2026Solids, total suspended, monthly average30≤ 12 mg/L150%
January 2026Solids, total suspended, weekly maximum2.6≤ 1.4 kg/d86%
January 2026Solids, total suspended, weekly maximum30≤ 18 mg/L67%

Limits in force (34)

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 minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedweekly maximum≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ .9 kg/dall year001
Solids, total suspendedweekly maximum≤ 1.4 kg/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .08 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .23 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .11 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .34 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec001
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec001
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec001
Turbidity [severity]monthly averagereport only (severity)all year001
Turbidity [severity]daily maximumreport only (severity)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 1030 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 2318 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
Chlorine, total residualdaily maximum≤ .038 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ .8 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1.1 kg/dall year001
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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0122297 · MCP: https://passage-data.com/mcp