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Princeton STP

Sewage treatment plant, major discharger, Princeton, Kentucky. NPDES permit KY0028401, in force until Mar 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (41 values), form 2 quarterly (1 value), form 4 yearly, form P yearly
Renewal application due
Oct 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 8 required values missing, 1 of 18 reports late

Limits in force (326)

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≤ 392.81 lb/dall year
Solids, total suspendedmaximum weekly average≤ 589.22 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≤ 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≤ 52.4 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 131 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 78.6 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum weekly average≤ 196.5 lb/dJan, 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]monthly average≤ 1 mg/Lall 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]daily maximum≤ 2 mg/Lall year
Phosphorus, total [as P]monthly average≤ 13.1 lb/dall year
Phosphorus, total [as P]maximum weekly average≤ 26.2 lb/dall 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]averagereport only (mg/L)all year
Cyanide, free [amenable to chlorination]daily maximumreport only (mg/L)all year
Cyanide, free [amenable to chlorination]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]averagereport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]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 recoverableaveragereport only (mg/L)all year
Arsenic, total recoverabledaily maximumreport only (mg/L)all year
Arsenic, total recoverablemaximumreport 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 recoverableaveragereport only (mg/L)all year
Selenium, total recoverabledaily maximumreport only (mg/L)all year
Selenium, total recoverablemaximumreport only (mg/L)all year
Selenium, total recoverablemonthly averagereport only (mg/L)all year
Selenium, total recoverabledaily maximumreport only (mg/L)all year
Thallium, total recoverableaveragereport only (mg/L)all year
Thallium, total recoverablemaximumreport only (mg/L)all year
Beryllium, total recoverable [as Be]averagereport only (mg/L)all year
Beryllium, total recoverable [as Be]maximumreport only (mg/L)all year
Nickel, total recoverablemonthly averagereport only (mg/L)all year
Nickel, total recoverableaveragereport only (mg/L)all year
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Nickel, total recoverablemaximumreport 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 recoverableaveragereport only (mg/L)all year
Silver total recoverabledaily maximumreport only (mg/L)all year
Silver total recoverablemaximumreport 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 recoverableaveragereport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Zinc, total recoverablemaximumreport 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 recoverableaveragereport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Cadmium, total recoverablemaximumreport 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 recoverableaveragereport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemaximumreport 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 recoverableaveragereport only (mg/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Chromium, total recoverablemaximumreport 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 recoverableaveragereport 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 recoverablemaximumreport 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
Antimony, total recoverableaveragereport only (mg/L)all year
Antimony, total recoverablemaximumreport only (mg/L)all year
Dichlorobromomethaneaveragereport only (ug/L)all year
Dichlorobromomethanemaximumreport only (ug/L)all year
Carbon tetrachlorideaveragereport only (ug/L)all year
Carbon tetrachloridemaximumreport only (ug/L)all year
1,2-Dichloroethaneaveragereport only (ug/L)all year
1,2-Dichloroethanemaximumreport only (ug/L)all year
Bromoformaveragereport only (ug/L)all year
Bromoformmaximumreport only (ug/L)all year
Chloroformaveragereport only (ug/L)all year
Chloroformmaximumreport only (ug/L)all year
Tolueneaveragereport only (ug/L)all year
Toluenemaximumreport only (ug/L)all year
Benzeneaveragereport only (ug/L)all year
Benzenemaximumreport only (ug/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
Acenaphthyleneaveragereport only (ug/L)all year
Acenaphthylenemaximumreport only (ug/L)all year
Acenaphtheneaveragereport only (ug/L)all year
Acenaphthenemaximumreport only (ug/L)all year
Acroleinaveragereport only (ug/L)all year
Acroleinmaximumreport only (ug/L)all year
Acrylonitrileaveragereport only (ug/L)all year
Acrylonitrilemaximumreport only (ug/L)all year
Anthraceneaveragereport only (ug/L)all year
Anthracenemaximumreport only (ug/L)all year
Benzo[k]fluorantheneaveragereport only (ug/L)all year
Benzo[k]fluoranthenemaximumreport only (ug/L)all year
Benzo[a]pyreneaveragereport only (ug/L)all year
Benzo[a]pyrenemaximumreport only (ug/L)all year
Bis[2-chloroethyl] etheraveragereport only (ug/L)all year
Bis[2-chloroethyl] ethermaximumreport only (ug/L)all year
Bis[2-chloroethoxy]methaneaveragereport only (ug/L)all year
Bis[2-chloroethoxy]methanemaximumreport only (ug/L)all year
Bis[2-chloroisopropyl] etheraveragereport only (ug/L)all year
Bis[2-chloroisopropyl] ethermaximumreport only (ug/L)all year
Butyl benzyl phthalateaveragereport only (ug/L)all year
Butyl benzyl phthalatemaximumreport only (ug/L)all year
Chlorobenzeneaveragereport only (ug/L)all year
Chlorobenzenemaximumreport only (ug/L)all year
Chlorodibromomethaneaveragereport only (ug/L)all year
Chlorodibromomethanemaximumreport only (ug/L)all year
Chryseneaveragereport only (ug/L)all year
Chrysenemaximumreport only (ug/L)all year
Diethyl phthalateaveragereport only (ug/L)all year
Diethyl phthalatemaximumreport only (ug/L)all year
Dimethyl phthalateaveragereport only (ug/L)all year
Dimethyl phthalatemaximumreport only (ug/L)all year
1,2-Diphenylhydrazineaveragereport only (ug/L)all year
1,2-Diphenylhydrazinemaximumreport only (ug/L)all year
Ethylbenzeneaveragereport only (ug/L)all year
Ethylbenzenemaximumreport only (ug/L)all year
Fluorantheneaveragereport only (ug/L)all year
Fluoranthenemaximumreport only (ug/L)all year
Fluoreneaveragereport only (ug/L)all year
Fluorenemaximumreport only (ug/L)all year
Hexachlorocyclopentadieneaveragereport only (ug/L)all year
Hexachlorocyclopentadienemaximumreport only (ug/L)all year
Hexachloroethaneaveragereport only (ug/L)all year
Hexachloroethanemaximumreport only (ug/L)all year
Indeno[1,2,3-cd]pyreneaveragereport only (ug/L)all year
Indeno[1,2,3-cd]pyrenemaximumreport only (ug/L)all year
Isophoroneaveragereport only (ug/L)all year
Isophoronemaximumreport only (ug/L)all year
Methyl bromide [Bromomethane]averagereport only (ug/L)all year
Methyl bromide [Bromomethane]maximumreport only (ug/L)all year
Methyl chloride [Chloromethane]averagereport only (ug/L)all year
Methyl chloride [Chloromethane]maximumreport only (ug/L)all year
Methylene chlorideaveragereport only (ug/L)all year
Methylene chloridemaximumreport only (ug/L)all year
N-Nitrosodi-N-propylamineaveragereport only (ug/L)all year
N-Nitrosodi-N-propylaminemaximumreport only (ug/L)all year
N-Nitrosodiphenylamineaveragereport only (ug/L)all year
N-Nitrosodiphenylaminemaximumreport only (ug/L)all year
N-Nitrosodimethylamine [NDMA]averagereport only (ug/L)all year
N-Nitrosodimethylamine [NDMA]maximumreport only (ug/L)all year
Nitrobenzeneaveragereport only (ug/L)all year
Nitrobenzenemaximumreport only (ug/L)all year
Phenanthreneaveragereport only (ug/L)all year
Phenanthrenemaximumreport only (ug/L)all year
Pyreneaveragereport only (ug/L)all year
Pyrenemaximumreport only (ug/L)all year
Tetrachloroethyleneaveragereport only (ug/L)all year
Tetrachloroethylenemaximumreport only (ug/L)all year
1,1-Dichloroethaneaveragereport only (ug/L)all year
1,1-Dichloroethanemaximumreport only (ug/L)all year
1,1-Dichloroethyleneaveragereport only (ug/L)all year
1,1-Dichloroethylenemaximumreport only (ug/L)all year
1,1,1-Trichloroethaneaveragereport only (ug/L)all year
1,1,1-Trichloroethanemaximumreport only (ug/L)all year
1,1,2-Trichloroethaneaveragereport only (ug/L)all year
1,1,2-Trichloroethanemaximumreport only (ug/L)all year
1,1,2,2-Tetrachloroethaneaveragereport only (mg/L)all year
1,1,2,2-Tetrachloroethanemaximumreport only (mg/L)all year
Benzo[ghi]peryleneaveragereport only (ug/L)all year
Benzo[ghi]perylenemaximumreport only (ug/L)all year
Benzo[a]anthraceneaveragereport only (ug/L)all year
Benzo[a]anthracenemaximumreport only (ug/L)all year
1,2-Dichlorobenzeneaveragereport only (ug/L)all year
1,2-Dichlorobenzenemaximumreport only (ug/L)all year
1,2-Dichloropropaneaveragereport only (ug/L)all year
1,2-Dichloropropanemaximumreport only (ug/L)all year
trans-1,2-Dichloroethyleneaveragereport only (ug/L)all year
trans-1,2-Dichloroethylenemaximumreport only (ug/L)all year
1,2,4-Trichlorobenzeneaveragereport only (ug/L)all year
1,2,4-Trichlorobenzenemaximumreport only (ug/L)all year
Dibenz[a,h]anthraceneaveragereport only (ug/L)all year
Dibenz[a,h]anthracenemaximumreport only (ug/L)all year
1,3-Dichlorobenzeneaveragereport only (ug/L)all year
1,3-Dichlorobenzenemaximumreport only (ug/L)all year
1,4-Dichlorobenzeneaveragereport only (ug/L)all year
1,4-Dichlorobenzenemaximumreport only (ug/L)all year
2-Chloroethyl vinyl ether, [mixed]averagereport only (ug/L)all year
2-Chloroethyl vinyl ether, [mixed]maximumreport only (ug/L)all year
2-Chloronaphthaleneaveragereport only (ug/L)all year
2-Chloronaphthalenemaximumreport only (ug/L)all year
2-Chlorophenolaveragereport only (ug/L)all year
2-Chlorophenolmaximumreport only (ug/L)all year
2-Nitrophenolaveragereport only (ug/L)all year
2-Nitrophenolmaximumreport only (ug/L)all year
2,4-Dichlorophenolaveragereport only (ug/L)all year
2,4-Dichlorophenolmaximumreport only (ug/L)all year
2,4-Dimethylphenolaveragereport only (ug/L)all year
2,4-Dimethylphenolmaximumreport only (ug/L)all year
2,4-Dinitrotolueneaveragereport only (ug/L)all year
2,4-Dinitrotoluenemaximumreport only (ug/L)all year
2,4-Dinitrophenolaveragereport only (ug/L)all year
2,4-Dinitrophenolmaximumreport only (ug/L)all year
2,4,6-Trichlorophenolaveragereport only (ug/L)all year
2,4,6-Trichlorophenolmaximumreport only (ug/L)all year
2,6-Dinitrotolueneaveragereport only (ug/L)all year
2,6-Dinitrotoluenemaximumreport only (ug/L)all year
3,3'-Dichlorobenzidineaveragereport only (ug/L)all year
3,3'-Dichlorobenzidinemaximumreport only (ug/L)all year
4-Bromophenyl phenyl etheraveragereport only (ug/L)all year
4-Bromophenyl phenyl ethermaximumreport only (ug/L)all year
4-Chlorophenyl phenyl etheraveragereport only (ug/L)all year
4-Chlorophenyl phenyl ethermaximumreport only (ug/L)all year
4-Nitrophenolaveragereport only (ug/L)all year
4-Nitrophenolmaximumreport only (ug/L)all year
4,6-Dinitro-o-cresolaveragereport only (ug/L)all year
4,6-Dinitro-o-cresolmaximumreport only (ug/L)all year
Phenolaveragereport only (ug/L)all year
Phenolmaximumreport only (ug/L)all year
Naphthaleneaveragereport only (ug/L)all year
Naphthalenemaximumreport only (ug/L)all year
Pentachlorophenolaveragereport only (ug/L)all year
Pentachlorophenolmaximumreport only (ug/L)all year
Di[2-ethylhexyl] phthalate [DEHP]averagereport only (ug/L)all year
Di[2-ethylhexyl] phthalate [DEHP]maximumreport only (ug/L)all year
Di-n-butyl phthalateaveragereport only (ug/L)all year
Di-n-butyl phthalatemaximumreport only (ug/L)all year
Benzidineaveragereport only (ug/L)all year
Benzidinemaximumreport only (ug/L)all year
Vinyl chlorideaveragereport only (ug/L)all year
Vinyl chloridemaximumreport only (ug/L)all year
Trichloroethyleneaveragereport only (ug/L)all year
Trichloroethylenemaximumreport only (ug/L)all year
Hexachlorobenzeneaveragereport only (ug/L)all year
Hexachlorobenzenemaximumreport only (ug/L)all year
Hexachlorobutadieneaveragereport only (ug/L)all year
Hexachlorobutadienemaximumreport only (ug/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
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
Toxicity, final conc toxicity unitsmaximum≤ 1.06 tox chronicall year
Phenolic compounds, totalaveragereport only (mg/L)all year
Phenolic compounds, 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 recoverableaveragereport only (mg/L)all year
Mercury, total recoverabledaily maximumreport only (mg/L)all year
Mercury, total recoverablemaximumreport only (mg/L)all year
Mercury, total recoverablemonthly averagereport only (mg/L)all year
Mercury, total recoverabledaily maximumreport only (mg/L)all year
1,3-Dichloropropeneaveragereport only (ug/L)all year
1,3-Dichloropropenemaximumreport only (ug/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
3,4-Benzofluorantheneaveragereport only (ug/L)all year
3,4-Benzofluoranthenemaximumreport only (ug/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 261.88 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 392.81 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
p-Chloro-m-cresolaveragereport only (ug/L)all year
p-Chloro-m-cresolmaximumreport only (ug/L)all year
Chloroethaneaveragereport only (ug/L)all year
Chloroethanemaximumreport only (ug/L)all year

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/KY0028401 · MCP: https://passage-data.com/mcp