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Liberty STP

Sewage treatment plant, Liberty, Kentucky. NPDES permit KY0026352, in force until Sep 30, 2030. Last 12 months: over a limit 6 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (35 values), form 2 quarterly, form 4 yearly, form P yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
14 values over a limit, 0 required values missing, 0 of 18 reports late

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

Period endingParameterReportedLimitOver by
March 2026Solids, suspended percent removal, monthly average minimum78 %≥ 85 %47%
May 2026E. coli, 7-day geometric mean1881 #/100mL≤ 240 #/100mL684%
May 2026Oxygen, dissolved [DO], instantaneous minimum6.05 mg/L≥ 7 mg/L14%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average16 mg/L≤ 15 mg/L7%
June 2026E. coli, 7-day geometric mean775 #/100mL≤ 240 #/100mL223%
July 2026BOD, carbonaceous [5 day, 20 C], daily maximum83 lb/d≤ 80.4 lb/d3%

Limits in force (124)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitaveragereport only (deg F)May–Oct
Temperature, water deg. fahrenheitaveragereport only (deg F)Jan, Feb, Mar, Apr, Nov, Dec
Temperature, water deg. fahrenheitmaximumreport only (deg F)May–Oct
Temperature, water deg. fahrenheitmaximumreport only (deg F)Jan, Feb, Mar, Apr, Nov, Dec
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≤ 160.6 lb/dall year
Solids, total suspendeddaily maximum≤ 240.9 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Oil & Greasemonthly averagereport only (mg/L)all year
Oil & Greaseaveragereport only (mg/L)all year
Oil & Greasedaily maximumreport only (mg/L)all year
Oil & Greasemaximumreport only (mg/L)all year
Oil & Greasemonthly averagereport only (mg/L)all year
Oil & Greasedaily 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, 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≤ 2 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 10.7 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 26.8 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 16.1 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 40.2 lb/dJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
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]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]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Cyanide, free [amenable to chlorination]monthly averagereport only (mg/L)all year
Cyanide, free [amenable to chlorination]daily maximumreport only (mg/L)all year
Cyanide, free [amenable to chlorination]monthly averagereport only (mg/L)all year
Cyanide, free [amenable to chlorination]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
Chloride [as Cl]monthly averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Chloride [as Cl]monthly averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Arsenic, total recoverablemonthly averagereport only (mg/L)all year
Arsenic, total recoverabledaily maximumreport only (mg/L)all year
Arsenic, total recoverablemonthly averagereport only (mg/L)all year
Arsenic, total recoverabledaily maximumreport only (mg/L)all year
Iron, total recoverablemonthly averagereport only (mg/L)all year
Iron, total recoverabledaily maximumreport only (mg/L)all year
Iron, total recoverablemonthly averagereport only (mg/L)all year
Iron, total recoverabledaily maximumreport only (mg/L)all year
Selenium, total recoverablemonthly averagereport only (mg/L)all year
Selenium, total recoverabledaily maximumreport only (mg/L)all year
Selenium, total recoverablemonthly averagereport only (mg/L)all year
Selenium, total recoverabledaily maximumreport only (mg/L)all year
Nickel, total recoverablemonthly averagereport only (mg/L)all year
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Nickel, total recoverablemonthly averagereport only (mg/L)all year
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Silver total recoverablemonthly averagereport only (mg/L)all year
Silver total recoverabledaily maximumreport only (mg/L)all year
Silver total recoverablemonthly averagereport only (mg/L)all year
Silver total recoverabledaily maximumreport only (mg/L)all year
Zinc, total recoverablemonthly averagereport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Zinc, total recoverablemonthly averagereport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Cadmium, total recoverablemonthly averagereport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Cadmium, total recoverablemonthly averagereport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemonthly averagereport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemonthly averagereport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Chromium, total recoverablemonthly averagereport only (mg/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Chromium, total recoverablemonthly averagereport only (mg/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverablemonthly averagereport only (mg/L)all year
Copper, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverablemonthly averagereport only (mg/L)all year
Copper, total recoverabledaily maximumreport only (mg/L)all year
Phenolics, totalmonthly averagereport only (mg/L)all year
Phenolics, totaldaily maximumreport only (mg/L)all year
Phenolics, totalmonthly averagereport only (mg/L)all year
Phenolics, totaldaily 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
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
Mercury, total recoverablemonthly averagereport only (mg/L)all year
Mercury, total recoverabledaily maximumreport only (mg/L)all year
Chromium, hexavalent tot recoverablemonthly averagereport only (mg/L)all year
Chromium, hexavalent tot recoverabledaily maximumreport only (mg/L)all year
Chromium, hexavalent tot recoverablemonthly averagereport only (mg/L)all year
Chromium, hexavalent tot recoverabledaily maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 53.6 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 80.4 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
Toxicity, Chronicdaily maximum≤ 1 tox chronicall 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/KY0026352 · MCP: https://passage-data.com/mcp