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Lynch STP

Sewage treatment plant, Lynch, Kentucky. NPDES permit KY0024279 expired Jul 31, 2024; its limits still apply. Last 12 months: over a limit 32 times (last June 2026), 236 required values missing, 5 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (37 values), form 2 quarterly (2 values), form 4 yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 464 required values missing, 0 of 17 reports late

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

All 32 values over a limit
Period endingParameterReportedLimitOver by
January 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum59.6 %≥ 85 %169%
January 2026E. coli, 30-day geometric mean2420 #/100mL≤ 130 #/100mL1762%
January 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
January 2026Oxygen, dissolved [DO], instantaneous minimum3.8 mg/L≥ 7 mg/L46%
January 2026Solids, suspended percent removal, monthly average minimum75.6 %≥ 85 %63%
February 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum15 %≥ 85 %467%
February 2026E. coli, 30-day geometric mean2420 #/100mL≤ 130 #/100mL1762%
February 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
February 2026Oxygen, dissolved [DO], instantaneous minimum6.8 mg/L≥ 7 mg/L3%
February 2026Solids, suspended percent removal, monthly average minimum0 %≥ 85 %567%
March 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum25 %≥ 85 %400%
March 2026E. coli, 30-day geometric mean2420 #/100mL≤ 130 #/100mL1762%
March 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
March 2026Oxygen, dissolved [DO], instantaneous minimum5.9 mg/L≥ 7 mg/L16%
March 2026Solids, suspended percent removal, monthly average minimum31.03 %≥ 85 %360%
April 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum64.6 %≥ 85 %136%
April 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum64.6 %≥ 85 %136%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average33.25 mg/L≤ 30 mg/L11%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average33.25 mg/L≤ 30 mg/L11%
April 2026E. coli, 30-day geometric mean2420 #/100mL≤ 130 #/100mL1762%
April 2026E. coli, 30-day geometric mean2420 #/100mL≤ 130 #/100mL1762%
April 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
April 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
April 2026Oxygen, dissolved [DO], instantaneous minimum6.5 mg/L≥ 7 mg/L7%
April 2026Oxygen, dissolved [DO], instantaneous minimum6.5 mg/L≥ 7 mg/L7%
April 2026Solids, suspended percent removal, monthly average minimum76.19 %≥ 85 %59%
April 2026Solids, suspended percent removal, monthly average minimum76.19 %≥ 85 %59%
June 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum17 %≥ 85 %453%
June 2026E. coli, 30-day geometric mean245 #/100mL≤ 130 #/100mL88%
June 2026E. coli, 7-day geometric mean60000 #/100mL≤ 240 #/100mL24900%
June 2026Oxygen, dissolved [DO], instantaneous minimum5.4 mg/L≥ 7 mg/L23%
June 2026Solids, suspended percent removal, monthly average minimum26 %≥ 85 %393%

Limits in force (53)

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
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 50.04 lb/dall year
Solids, total suspendedmaximum weekly average≤ 75.06 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
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall 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
Mercury, total recoverablemonthly averagereport only (mg/L)all year
Mercury, total recoverabledaily maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 45 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 50.04 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 75.06 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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KY0024279 · MCP: https://passage-data.com/mcp