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Mid-Ohio Sports Car Course

Racing, Including Track Operation, Lexington, Ohio. NPDES permit OH0136565, in force until Jun 30, 2029. Last 12 months: no values over a limit. 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
0 values over a limit, 0 required values missing, 0 of 14 reports late

Limits in force (51)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)Jun–Sep001
Temperature, water deg. centigrademonthly averagereport only (deg C)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Temperature, water deg. centigradedaily maximumreport only (deg C)Jun–Sep001
Temperature, water deg. centigradedaily maximumreport only (deg C)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LJun–Sep001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
pHdaily minimumreport only (SU)Jun–Sep001
pHdaily minimumreport only (SU)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
pHdaily maximumreport only (SU)Jun–Sep001
pHdaily maximumreport only (SU)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedmonthly average≤ 12 mg/LJun–Sep001
Solids, total suspendedmonthly average≤ 12 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedweekly maximum≤ 18 mg/LJun–Sep001
Solids, total suspendedweekly maximum≤ 18 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedmonthly average≤ 1.37 kg/dJun–Sep001
Solids, total suspendedmonthly average≤ 1.37 kg/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedweekly maximum≤ 2.05 kg/dJun–Sep001
Solids, total suspendedweekly maximum≤ 2.05 kg/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
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≤ .11 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .34 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .17 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .51 kg/dJan, Feb, Mar, Apr, Nov, 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)Jun–Sep001
Turbidity [severity]monthly averagereport only (severity)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Turbidity [severity]daily maximumreport only (severity)Jun–Sep001
Turbidity [severity]daily maximumreport only (severity)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
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)Jun–Sep001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Jun–Sep001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Chlorine, total residualdaily maximum≤ .019 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJun–Sep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/LJun–Sep001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.14 kg/dJun–Sep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.14 kg/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1.71 kg/dJun–Sep001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1.71 kg/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
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.

Same industry: the 57 Amusement and Recreation 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/OH0136565 · MCP: https://passage-data.com/mcp