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ODOT Dist 1

Sewage treatment plant, Lima, Ohio. NPDES permit OH0078590, in force until Nov 30, 2027. Last 12 months: over a limit 4 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (21 values), outfall 002 form A monthly (21 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
1 value over a limit, 0 required values missing, 0 of 26 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], monthly average.16≤ .15 kg/d7%
December 2025Nitrogen, ammonia total [as N], monthly average22≤ 4 mg/L450%
December 2025Nitrogen, ammonia total [as N], weekly maximum22≤ 6 mg/L267%
May 2026E. coli, MTEC-MF, weekly geometric mean518≤ 284 MPN/100mL82%

Limits in force (62)

ParameterStatisticLimitMonthsOutfall
Flow ratemonthly averagereport only (gal/d)all year001
Flow ratedaily maximumreport only (gal/d)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≤ .46 kg/dall year001
Solids, total suspendedweekly maximum≤ .68 kg/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 2.3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 6 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .057 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .15 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .087 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .23 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≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–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≤ .38 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .57 kg/dall year001
Flow ratemonthly averagereport only (gal/d)all year002
Flow ratedaily maximumreport only (gal/d)all year002
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 12 mg/Lall year002
Solids, total suspendedweekly maximum≤ 18 mg/Lall year002
Solids, total suspendedmonthly average≤ .46 kg/dall year002
Solids, total suspendedweekly maximum≤ .68 kg/dall year002
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]weekly maximum≤ 2.3 mg/LMay–Oct002
Nitrogen, ammonia total [as N]weekly maximum≤ 6 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]monthly average≤ .057 kg/dMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ .15 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]weekly maximum≤ .087 kg/dMay–Oct002
Nitrogen, ammonia total [as N]weekly maximum≤ .23 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec002
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec002
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec002
Turbidity [severity]monthly averagereport only (severity)all year002
Turbidity [severity]daily maximumreport only (severity)all year002
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct002
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]monthly average≤ .38 kg/dall year002
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ .57 kg/dall year002
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec586
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec586
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/OH0078590 · MCP: https://passage-data.com/mcp