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Marlington Local Schools

Elementary And Secondary Schools, Alliance, Ohio. NPDES permit OH0045675, in force until Apr 30, 2027. Last 12 months: over a limit 2 times (last October 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (27 values), outfall 002 form A monthly (28 values)
Renewal application due
Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 25 reports late

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

Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average3.15≤ 1.6 mg/L97%
October 2025Nitrogen, ammonia total [as N], weekly maximum3.15≤ 2.7 mg/L17%

Limits in force (65)

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≥ 5 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≤ 1.1 kg/dall year001
Solids, total suspendedweekly maximum≤ 1.7 kg/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 2.7 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 6.8 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .17 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .43 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .26 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .64 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec001
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
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≤ .95 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1.4 kg/dall year001
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≥ 5 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≤ .91 kg/dall year002
Solids, total suspendedweekly maximum≤ 1.4 kg/dall year002
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]weekly maximum≤ 2.7 mg/LMay–Oct002
Nitrogen, ammonia total [as N]weekly maximum≤ 6.8 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]monthly average≤ .14 kg/dMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ .34 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]weekly maximum≤ .21 kg/dMay–Oct002
Nitrogen, ammonia total [as N]weekly maximum≤ .52 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec002
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec002
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualdaily maximum≤ .019 mg/LMay–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≤ .76 kg/dall year002
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1.1 kg/dall year002
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.

Same industry: the 102 Educational Services 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/OH0045675 · MCP: https://passage-data.com/mcp