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Clean Water Act discharge permit · NPDES KY0028347

WILLIAMSBURG STP, Williamsburg, KY: NPDES KY0028347 discharge permit, effluent exceedances, inspections, penalties

WILLIAMSBURG STP, held by Williamsburg STP, holds NPDES permit KY0028347, which discharges to Cumberland River. EPA’s file records it issued October 25, 2016 and expiring December 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedWILLIAMSBURG STP
Permittee as filedWilliamsburg STP
NPDES IDKY0028347
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedOctober 25, 2016
Expiration dateDecember 31, 2021
AddressWilliamsburg, KY 40769
Receiving waterCUMBERLAND RIVER
SubwatershedYoungs Creek-Cumberland River (HUC 051301010704)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 125 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended63326January 31, 2022366% over the limit
Solids, suspended percent removal11918July 31, 2026293% over the limit
E. coli21414January 31, 202624,900% over the limit
BOD, 5-day, percent removal199July 31, 2026240% over the limit
pH275June 30, 2021
BOD, 5-day, 20 deg. C6144July 31, 2026151% over the limit
Nitrogen, ammonia total [as N]444July 31, 202614% over the limit
Phosphorus, total [as P]460
Zinc, total recoverable260
Cadmium, total recoverable260
Lead, total recoverable260
Copper, total recoverable260
Flow, in conduit or thru treatment plant440
Oil & Grease240
Cyanide, free [amenable to chlorination]240
Arsenic, total recoverable240
Selenium, total recoverable240
Nickel, total recoverable240
Silver total recoverable240
Chromium, total recoverable240
Mercury, total recoverable240
Chloride [as Cl]040
Iron, total recoverable040
Phenolics, total040
Chromium, hexavalent tot recoverable040
Nitrogen, total [as N]220
Hardness, total [as CaCO3]220
Cadmium, dissolved [as Cd]020
Copper, dissolved [as Cu]020
Lead, dissolved [as Pb]020
Zinc, dissolved [as Zn]020
Oxygen, dissolved [DO]110
Toxicity, final conc toxicity units110
Temperature, water deg. fahrenheit200
Thallium, total recoverable200
Beryllium, total recoverable [as Be]200
Antimony, total recoverable200
Dichlorobromomethane200
Carbon tetrachloride200
1,2-Dichloroethane200
Bromoform200
Chloroform200
Toluene200
Benzene200
Acenaphthylene200
Acenaphthene200
Acrolein200
Acrylonitrile200
Anthracene200
Benzo[k]fluoranthene200
Benzo[a]pyrene200
Bis[2-chloroethyl] ether200
Bis[2-chloroethoxy]methane200
Bis[2-chloroisopropyl] ether200
Butyl benzyl phthalate200
Chlorobenzene200
Chlorodibromomethane200
Chrysene200
Diethyl phthalate200
Dimethyl phthalate200

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

DateWhat EPA recordedAgency
October 28, 2024Permit Violations - Discharge Without a Valid PermitST6
October 28, 2024Effluent Violations - Narrative Effluent ViolationST6
October 28, 2024Reporting Violations - Failure to NotifyST6
October 28, 2024Management Practice Violations - Improper Operation and MaintenanceST6
August 21, 2024Management Practice Violations - Improper Operation and MaintenanceST6
August 21, 2024Effluent Violations - Narrative Effluent ViolationST6
August 21, 2024Reporting Violations - Failure to NotifyST6
August 5, 2024Permit Violations - Discharge Without a Valid PermitST6
August 5, 2024Management Practice Violations - Improper Operation and MaintenanceST6
August 5, 2024Effluent Violations - Narrative Effluent ViolationST6
August 5, 2024Reporting Violations - Failure to NotifyST6
February 21, 2024Effluent Violations - Narrative Effluent ViolationST6
February 21, 2024Management Practice Violations - Improper Operation and MaintenanceST6
February 21, 2024Reporting Violations - Failure to NotifyST6
September 28, 2023Effluent Violations - Narrative Effluent ViolationST6
September 28, 2023Permit Violations - Discharge Without a Valid PermitST6
September 28, 2023Reporting Violations - Failure to NotifyST6
September 28, 2023Management Practice Violations - Improper Operation and MaintenanceST6
September 12, 2023Effluent Violations - Narrative Effluent ViolationST6
September 12, 2023Permit Violations - Discharge Without a Valid PermitST6
September 12, 2023Management Practice Violations - Improper Operation and MaintenanceST6
September 12, 2023Reporting Violations - Failure to NotifyST6
August 16, 2023Management Practice Violations - Improper Operation and MaintenanceST6
August 16, 2023Reporting Violations - Failure to NotifyST6
August 16, 2023Monitoring Violations - Invalid/Unrepresentative SampleST6
June 20, 2023Permit Violations - Discharge Without a Valid PermitST6
June 20, 2023Effluent Violations - Narrative Effluent ViolationST6
June 20, 2023Management Practice Violations - Improper Operation and MaintenanceST6
November 3, 2022Management Practice Violations - Improper Operation and MaintenanceST6
November 3, 2022Monitoring Violations - Invalid/Unrepresentative SampleST6
May 5, 2022Management Practice Violations - Improper Operation and MaintenanceST6
March 31, 2022Reporting Violations - Failure to NotifyST6
March 31, 2022Effluent Violations - Narrative Effluent ViolationST6
March 31, 2022Management Practice Violations - Improper Operation and MaintenanceST6
December 16, 2021Management Practice Violations - Improper Operation and MaintenanceST6
December 16, 2021Reporting Violations - Failure to NotifyST6
June 12, 2019Management Practice Violations - Improper Operation and MaintenanceST6
May 22, 2018Effluent Violations - Failed Toxicity TestST6
January 10, 2018Management Practice Violations - Improper Operation and MaintenanceST6
November 29, 2017Reporting Violations - Failure to NotifyST6
November 29, 2017Effluent Violations - Narrative Effluent ViolationST6
November 29, 2017Management Practice Violations - Improper Operation and MaintenanceST6
March 20, 2017Effluent Violations - Failed Toxicity TestST6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID KY0028347 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.