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Highland High School

Elementary And Secondary Schools, Medina, Ohio. NPDES permit OH0133141, in force until Jun 30, 2030. Last 12 months: over a limit 18 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (29 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
15 values over a limit, 0 required values missing, 0 of 13 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average2.21≤ 1 mg/L121%
October 2025Nitrogen, ammonia total [as N], weekly maximum4.11≤ 1.5 mg/L174%
November 2025Nitrogen, ammonia total [as N], monthly average7.06≤ 3 mg/L135%
November 2025Nitrogen, ammonia total [as N], weekly maximum14.1≤ 4.5 mg/L213%
December 2025Nitrogen, ammonia total [as N], monthly average7.9≤ 3 mg/L163%
December 2025Nitrogen, ammonia total [as N], weekly maximum15.8≤ 4.5 mg/L251%
January 2026Nitrogen, ammonia total [as N], monthly average.589≤ .585 kg/d1%
January 2026Nitrogen, ammonia total [as N], monthly average21.9≤ 3 mg/L630%
January 2026Nitrogen, ammonia total [as N], weekly maximum1.15≤ .877 kg/d31%
January 2026Nitrogen, ammonia total [as N], weekly maximum43.5≤ 4.5 mg/L867%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average9≤ 8 mg/L13%
February 2026BOD, carbonaceous [5 day, 20 C], weekly maximum16≤ 12 mg/L33%
February 2026Nitrogen, ammonia total [as N], monthly average2.09≤ .585 kg/d257%
February 2026Nitrogen, ammonia total [as N], monthly average38.1≤ 3 mg/L1170%
February 2026Nitrogen, ammonia total [as N], weekly maximum3.3≤ .877 kg/d276%
February 2026Nitrogen, ammonia total [as N], weekly maximum62.3≤ 4.5 mg/L1284%
February 2026Solids, total suspended, monthly average11≤ 10 mg/L10%
February 2026Solids, total suspended, weekly maximum16≤ 15 mg/L7%

Limits in force (37)

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≤ 10 mg/Lall year001
Solids, total suspendedweekly maximum≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 1.95 kg/dall year001
Solids, total suspendedweekly maximum≤ 2.93 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≤ .195 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .585 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .293 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .877 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Mar, May, Jul, Sep, Nov001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Jan, Mar, May, Jul, Sep, Nov001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jan, Mar, May, Jul, Sep, Nov001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Jan, Mar, May, Jul, Sep, Nov001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
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
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)Jun, Dec001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)Jun, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 12 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.56 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 2.34 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.

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/OH0133141 · MCP: https://passage-data.com/mcp