Clean Water Act discharge permit · NPDES KY0028347
WILLIAMSBURG STP, Williamsburg, KY: NPDES KY0028347 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 117Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
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.
WILLIAMSBURG STP, Williamsburg, Kentucky: Individual permit KY0028347, held by Williamsburg STP; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued October 25, 2016, term to December 31, 2021; discharges to CUMBERLAND RIVER.
- Solids, total suspended: 6 limits, 33 violations of any kind, 26 effluent exceedances, latest January 31, 2022, largest 366% over the limit.
- Solids, suspended percent removal: 1 limit, 19 violations of any kind, 18 effluent exceedances, latest July 31, 2026, largest 293% over the limit.
- E. coli: 2 limits, 14 violations of any kind, 14 effluent exceedances, latest January 31, 2026, largest 24,900% over the limit.
- BOD, 5-day, percent removal: 1 limit, 9 violations of any kind, 9 effluent exceedances, latest July 31, 2026, largest 240% over the limit.
- pH: 2 limits, 7 violations of any kind, 5 effluent exceedances, latest June 30, 2021.
- BOD, 5-day, 20 deg. C: 6 limits, 14 violations of any kind, 4 effluent exceedances, latest July 31, 2026, largest 151% over the limit.
- Nitrogen, ammonia total [as N]: 4 limits, 4 violations of any kind, 4 effluent exceedances, latest July 31, 2026, largest 14% over the limit.
- Phosphorus, total [as P]: 4 limits, 6 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Copper, total recoverable: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 4 limits, 4 violations of any kind, 0 effluent exceedances.
- Oil & Grease: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Cyanide, free [amenable to chlorination]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Arsenic, total recoverable: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Selenium, total recoverable: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Silver total recoverable: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Mercury, total recoverable: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Chloride [as Cl]: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- Phenolics, total: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- Chromium, hexavalent tot recoverable: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Cadmium, dissolved [as Cd]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Copper, dissolved [as Cu]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Lead, dissolved [as Pb]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Zinc, dissolved [as Zn]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Toxicity, final conc toxicity units: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Thallium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Beryllium, total recoverable [as Be]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Antimony, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Dichlorobromomethane: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Carbon tetrachloride: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- 1,2-Dichloroethane: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Bromoform: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chloroform: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Toluene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Benzene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Acenaphthylene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Acenaphthene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Acrolein: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Acrylonitrile: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Anthracene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Benzo[k]fluoranthene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Benzo[a]pyrene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroethyl] ether: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroethoxy]methane: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroisopropyl] ether: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Butyl benzyl phthalate: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chlorobenzene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chlorodibromomethane: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chrysene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Diethyl phthalate: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Dimethyl phthalate: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- September 28, 2026: Evaluation (S).
- July 27, 2026: Notice of Violation (State).
- February 6, 2026: Permit Violations - Violation Specified in Comment (ST6).
- February 6, 2026: Evaluation (S).
- October 28, 2024: Permit Violations - Discharge Without a Valid Permit (ST6).
- October 28, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- October 28, 2024: Reporting Violations - Failure to Notify (ST6).
- October 28, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- August 21, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- August 21, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- August 21, 2024: Reporting Violations - Failure to Notify (ST6).
- August 5, 2024: Permit Violations - Discharge Without a Valid Permit (ST6).
- August 5, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- August 5, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- August 5, 2024: Reporting Violations - Failure to Notify (ST6).
- February 21, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- February 21, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- February 21, 2024: Reporting Violations - Failure to Notify (ST6).
- September 28, 2023: Effluent Violations - Narrative Effluent Violation (ST6).
- September 28, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- September 28, 2023: Reporting Violations - Failure to Notify (ST6).
- September 28, 2023: Management Practice Violations - Improper Operation and Maintenance (ST6).
- September 12, 2023: Effluent Violations - Narrative Effluent Violation (ST6).
- September 12, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- September 12, 2023: Management Practice Violations - Improper Operation and Maintenance (ST6).
- September 12, 2023: Reporting Violations - Failure to Notify (ST6).
- August 16, 2023: Management Practice Violations - Improper Operation and Maintenance (ST6).
- August 16, 2023: Reporting Violations - Failure to Notify (ST6).
- August 16, 2023: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
- June 20, 2023: Permit Violations - Discharge Without a Valid Permit (ST6).
- June 20, 2023: Effluent Violations - Narrative Effluent Violation (ST6).
- June 20, 2023: Management Practice Violations - Improper Operation and Maintenance (ST6).
- November 3, 2022: Management Practice Violations - Improper Operation and Maintenance (ST6).
- November 3, 2022: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
- May 5, 2022: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 31, 2022: Reporting Violations - Failure to Notify (ST6).
- March 31, 2022: Effluent Violations - Narrative Effluent Violation (ST6).
- March 31, 2022: Management Practice Violations - Improper Operation and Maintenance (ST6).
- December 16, 2021: Management Practice Violations - Improper Operation and Maintenance (ST6).
- December 16, 2021: Reporting Violations - Failure to Notify (ST6).
- June 12, 2019: Management Practice Violations - Improper Operation and Maintenance (ST6).
- May 22, 2018: Effluent Violations - Failed Toxicity Test (ST6).
- January 10, 2018: Management Practice Violations - Improper Operation and Maintenance (ST6).
- November 29, 2017: Reporting Violations - Failure to Notify (ST6).
- November 29, 2017: Effluent Violations - Narrative Effluent Violation (ST6).
- November 29, 2017: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 20, 2017: Effluent Violations - Failed Toxicity Test (ST6).
Kentucky holds 294 Publicly owned treatment works coverages of this permit type in EPA’s file; 96 were issued before KY0028347. Williamsburg STP holds 2 permits in Kentucky.
Other permits held by Williamsburg STP
- WILLIAMSBURG STP, Williamsburg: KYL028347, issued January 1, 2021
Coverages issued nearest KY0028347
- September 21, 2016: GUTHRIE STP, Guthrie, KY0063649, held by Guthrie STP
- September 21, 2016: CAVELAND ENVIRONMENTAL AUTHORITY, Horse Cave, KY0091561, held by Caveland Environmental Authority
- October 3, 2016: FALMOUTH STP (NEW), Falmouth, KY0106267, held by Falmouth STP New
- October 19, 2016: CARROLLTON REGIONAL WWTP, Carrollton, KY0104931, held by Carrollton Regional WWTP
- October 25, 2016: PINEVILLE STP, Pineville, KY0024058, held by Pineville STP
- October 25, 2016: EASTERN REGIONAL STP- EASTERN REGIONAL, Alexandria, KY0105031, held by Eastern Regional STP- Eastern Regional
- October 26, 2016: PIKEVILLE WWTP, Pikeville, KY0025291, held by Pikeville WWTP
- November 4, 2016: PRINCETON STP, Princeton, KY0028401, held by Princeton STP
- November 7, 2016: WINCHESTER MUNICIPAL UTILITIES - LOWER HOWARD CREEK WWTP, Winchester, KY0108740, held by Winchester Municipal Utilities
- December 1, 2016: SACRAMENTO STP, Sacramento, KY0091731, held by Sacramento STP
WILLIAMSBURG STP among its neighbors
EPA’s permit file holds 7 discharge permits in the Youngs Creek-Cumberland River subwatershed (HUC 051301010704), KY0028347 among them. Its county holds 26, 1 of them major permits; KY0028347 is a major permit.
Other permits in the Youngs Creek-Cumberland River subwatershed (HUC 051301010704)
- 1-75 OVERPASS KY 312, Williamsburg: KYR10U597, minor permit, discharging to Lynn Camp Creek, permit term to December 31, 2029
- HAL ROGERS FAMILY ENTERTAINMENT CENTER, Williamsburg: KY0104370, minor permit, discharging to BRIER CRK, permit term to June 30, 2024
- I 75 WIDENING CORBIN BAPTIST WASTE AREA, Williamsburg: KYR10T933, minor permit, discharging to Bacon Creek, permit term to December 31, 2029
- I-75 BRIDGE OVER KY727 (5TH STREET), Williamsburg: KYR10T837, minor permit, discharging to Parks Branch, permit term to December 31, 2029
- WHITLEY COUNTY DETENTION, Williamsburg: KYR10U158, minor permit, discharging to Brier Creek, permit term to December 31, 2029
- WILLIAMSBURG STP, Williamsburg: KYL028347, minor permit, permit term to December 31, 2025
Identity
| Facility as filed | WILLIAMSBURG STP |
|---|---|
| Permittee as filed | Williamsburg STP |
| NPDES ID | KY0028347 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | October 25, 2016 |
| Expiration date | December 31, 2021 |
| Address | Williamsburg, KY 40769 |
| Receiving water | CUMBERLAND RIVER |
| Subwatershed | Youngs Creek-Cumberland River (HUC 051301010704) |
Effluent limits and exceedances
- 125Pollutants on file
- 117Under a numeric limit
- 33With a violation of any kind
- 7With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 33 | 26 | January 31, 2022 | 366% over the limit |
| Solids, suspended percent removal | 1 | 19 | 18 | July 31, 2026 | 293% over the limit |
| E. coli | 2 | 14 | 14 | January 31, 2026 | 24,900% over the limit |
| BOD, 5-day, percent removal | 1 | 9 | 9 | July 31, 2026 | 240% over the limit |
| pH | 2 | 7 | 5 | June 30, 2021 | |
| BOD, 5-day, 20 deg. C | 6 | 14 | 4 | July 31, 2026 | 151% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 4 | 4 | July 31, 2026 | 14% over the limit |
| Phosphorus, total [as P] | 4 | 6 | 0 | ||
| Zinc, total recoverable | 2 | 6 | 0 | ||
| Cadmium, total recoverable | 2 | 6 | 0 | ||
| Lead, total recoverable | 2 | 6 | 0 | ||
| Copper, total recoverable | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Oil & Grease | 2 | 4 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 4 | 0 | ||
| Arsenic, total recoverable | 2 | 4 | 0 | ||
| Selenium, total recoverable | 2 | 4 | 0 | ||
| Nickel, total recoverable | 2 | 4 | 0 | ||
| Silver total recoverable | 2 | 4 | 0 | ||
| Chromium, total recoverable | 2 | 4 | 0 | ||
| Mercury, total recoverable | 2 | 4 | 0 | ||
| Chloride [as Cl] | 0 | 4 | 0 | ||
| Iron, total recoverable | 0 | 4 | 0 | ||
| Phenolics, total | 0 | 4 | 0 | ||
| Chromium, hexavalent tot recoverable | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 2 | 0 | ||
| Cadmium, dissolved [as Cd] | 0 | 2 | 0 | ||
| Copper, dissolved [as Cu] | 0 | 2 | 0 | ||
| Lead, dissolved [as Pb] | 0 | 2 | 0 | ||
| Zinc, dissolved [as Zn] | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Toxicity, final conc toxicity units | 1 | 1 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Thallium, total recoverable | 2 | 0 | 0 | ||
| Beryllium, total recoverable [as Be] | 2 | 0 | 0 | ||
| Antimony, total recoverable | 2 | 0 | 0 | ||
| Dichlorobromomethane | 2 | 0 | 0 | ||
| Carbon tetrachloride | 2 | 0 | 0 | ||
| 1,2-Dichloroethane | 2 | 0 | 0 | ||
| Bromoform | 2 | 0 | 0 | ||
| Chloroform | 2 | 0 | 0 | ||
| Toluene | 2 | 0 | 0 | ||
| Benzene | 2 | 0 | 0 | ||
| Acenaphthylene | 2 | 0 | 0 | ||
| Acenaphthene | 2 | 0 | 0 | ||
| Acrolein | 2 | 0 | 0 | ||
| Acrylonitrile | 2 | 0 | 0 | ||
| Anthracene | 2 | 0 | 0 | ||
| Benzo[k]fluoranthene | 2 | 0 | 0 | ||
| Benzo[a]pyrene | 2 | 0 | 0 | ||
| Bis[2-chloroethyl] ether | 2 | 0 | 0 | ||
| Bis[2-chloroethoxy]methane | 2 | 0 | 0 | ||
| Bis[2-chloroisopropyl] ether | 2 | 0 | 0 | ||
| Butyl benzyl phthalate | 2 | 0 | 0 | ||
| Chlorobenzene | 2 | 0 | 0 | ||
| Chlorodibromomethane | 2 | 0 | 0 | ||
| Chrysene | 2 | 0 | 0 | ||
| Diethyl phthalate | 2 | 0 | 0 | ||
| Dimethyl phthalate | 2 | 0 | 0 |
Inspections, violations and enforcement
- 44Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 6, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| October 28, 2024 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| October 28, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| October 28, 2024 | Reporting Violations - Failure to Notify | ST6 |
| October 28, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 21, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 21, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 21, 2024 | Reporting Violations - Failure to Notify | ST6 |
| August 5, 2024 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| August 5, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 5, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 5, 2024 | Reporting Violations - Failure to Notify | ST6 |
| February 21, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| February 21, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| February 21, 2024 | Reporting Violations - Failure to Notify | ST6 |
| September 28, 2023 | Effluent Violations - Narrative Effluent Violation | ST6 |
| September 28, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| September 28, 2023 | Reporting Violations - Failure to Notify | ST6 |
| September 28, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 12, 2023 | Effluent Violations - Narrative Effluent Violation | ST6 |
| September 12, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| September 12, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 12, 2023 | Reporting Violations - Failure to Notify | ST6 |
| August 16, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 16, 2023 | Reporting Violations - Failure to Notify | ST6 |
| August 16, 2023 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| June 20, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| June 20, 2023 | Effluent Violations - Narrative Effluent Violation | ST6 |
| June 20, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| November 3, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| November 3, 2022 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| May 5, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 31, 2022 | Reporting Violations - Failure to Notify | ST6 |
| March 31, 2022 | Effluent Violations - Narrative Effluent Violation | ST6 |
| March 31, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| December 16, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| December 16, 2021 | Reporting Violations - Failure to Notify | ST6 |
| June 12, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 22, 2018 | Effluent Violations - Failed Toxicity Test | ST6 |
| January 10, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| November 29, 2017 | Reporting Violations - Failure to Notify | ST6 |
| November 29, 2017 | Effluent Violations - Narrative Effluent Violation | ST6 |
| November 29, 2017 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 20, 2017 | Effluent Violations - Failed Toxicity Test | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 28, 2026 | Evaluation | S |
| February 6, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| July 27, 2026 | Notice of Violation | State |
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.