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Midway STP

Sewage treatment plant, Midway, Kentucky. NPDES permit KY0028410, in force until Dec 31, 2028. Last 12 months: over a limit 7 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (39 values), form 4 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 1 of 13 reports late

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

Period endingParameterReportedLimitOver by
February 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average35 mg/L≤ 22.5 mg/L56%
June 2026BOD, carbonaceous [5 day, 20 C], daily maximum215 lb/d≤ 140.74 lb/d53%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average155 lb/d≤ 93.82 lb/d65%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average41 mg/L≤ 15 mg/L173%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average58 mg/L≤ 22.5 mg/L158%
August 2026Phosphorus, total [as P], daily maximum1.7 mg/L≤ 1.5 mg/L13%
August 2026Phosphorus, total [as P], monthly average1.2 mg/L≤ 1 mg/L20%

Limits in force (55)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitaveragereport only (deg F)all year
Temperature, water deg. fahrenheitmaximumreport only (deg F)all year
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year
pHminimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 187.65 lb/dall year
Solids, total suspendeddaily maximum≤ 281.47 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Oil & Greaseaveragereport only (mg/L)all year
Oil & Greasemaximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 15 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 25.02 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 62.55 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 37.53 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 93.825 lb/dJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximum≤ 1.5 mg/Lall year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Cadmium, total recoverablemonthly averagereport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
E. coli30-day geometric mean≤ 130 #/100mLall year
E. coli7-day geometric mean≤ 240 #/100mLall year
Nitrogen, Kjeldahl Totalaveragereport only (mg/L)all year
Nitrogen, Kjeldahl Totalmaximumreport only (mg/L)all year
Nitrite Plus Nitrate Totalaveragereport only (mg/L)all year
Nitrite Plus Nitrate Totalmaximumreport only (mg/L)all year
Solids, total dissolved [TDS]averagereport only (mg/L)all year
Solids, total dissolved [TDS]maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 22.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 93.82 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 140.74 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]maximum weekly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Kentucky's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KY0028410 · MCP: https://passage-data.com/mcp