Clean Water Act discharge permit · NPDES KY0057193
DANVILLE STP, Danville, KY: NPDES KY0057193 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 121Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
DANVILLE STP, held by Danville STP, holds NPDES permit KY0057193, which discharges to Clarks Run. EPA’s file records it issued February 21, 2020 and expiring March 31, 2025.
DANVILLE STP, Danville, Kentucky: Individual permit KY0057193, held by Danville STP; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued February 21, 2020, term to March 31, 2025; discharges to CLARKS RUN.
- BOD, carbonaceous [5 day, 20 C]: 6 limits, 11 violations of any kind, 11 effluent exceedances, latest July 31, 2024, largest 99% over the limit.
- Toxicity, final conc toxicity units: 1 limit, 10 violations of any kind, 10 effluent exceedances, latest December 31, 2019, largest 99,999% over the limit.
- Nitrogen, ammonia total [as N]: 4 limits, 5 violations of any kind, 5 effluent exceedances, latest June 30, 2024, largest 265% over the limit.
- E. coli: 2 limits, 4 violations of any kind, 4 effluent exceedances, latest October 31, 2022, largest 24,900% over the limit.
- Phosphorus, total [as P]: 10 limits, 5 violations of any kind, 3 effluent exceedances, latest June 30, 2024, largest 37% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 4 violations of any kind, 3 effluent exceedances, latest June 30, 2024, largest 25% over the limit.
- Solids, suspended percent removal: 1 limit, 3 violations of any kind, 3 effluent exceedances, latest November 30, 2017, largest 24% over the limit.
- Arsenic, total recoverable: 6 limits, 20 violations of any kind, 0 effluent exceedances.
- Selenium, total recoverable: 6 limits, 20 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 6 limits, 20 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 6 limits, 20 violations of any kind, 0 effluent exceedances.
- Silver total recoverable: 6 limits, 18 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 6 limits, 18 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 6 limits, 18 violations of any kind, 0 effluent exceedances.
- Mercury, total recoverable: 6 limits, 16 violations of any kind, 0 effluent exceedances.
- Chromium, hexavalent tot recoverable: 4 limits, 15 violations of any kind, 0 effluent exceedances.
- Cyanide, free [amenable to chlorination]: 6 limits, 14 violations of any kind, 0 effluent exceedances.
- Copper, total recoverable: 6 limits, 10 violations of any kind, 0 effluent exceedances.
- Phenolics, total: 4 limits, 10 violations of any kind, 0 effluent exceedances.
- Oil and grease: 0 limits, 10 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 6 limits, 4 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 6 limits, 0 violations of any kind, 0 effluent exceedances.
- Oil & Grease: 6 limits, 0 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. centigrade: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Chloride [as Cl]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 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.
- 1,2-Diphenylhydrazine: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Ethylbenzene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Fluoranthene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Fluorene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- September 4, 2026: Evaluation (S).
- August 26, 2026: Audit (S).
- June 23, 2025: Permit Violations - Violation Specified in Comment (ST6).
- April 4, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- April 4, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- September 16, 2022: Management Practice Violations - Improper Operation and Maintenance (ST6).
- April 14, 2020: Effluent Violations - Failed Toxicity Test (ST6).
- September 27, 2019: Effluent Violations - Failed Toxicity Test (ST6).
- February 16, 2018: Effluent Violations - Failed Toxicity Test (ST6).
- April 26, 2017: Effluent Violations - Failed Toxicity Test (ST6).
Kentucky holds 294 Publicly owned treatment works coverages of this permit type in EPA’s file; 256 were issued before KY0057193. Danville STP holds 2 permits in Kentucky.
Other permits held by Danville STP
- DANVILLE STP, Danville: KYL057193, issued January 1, 2021
Coverages issued nearest KY0057193
- January 21, 2020: FORT KNOX WWTP, Fort Knox, KY0112721, held by Fort Knox WWTP
- February 5, 2020: WAYLAND STP, Wayland, KY0105228, held by Wayland STP
- February 14, 2020: OWINGSVILLE STP, Owingsville, KY0024287, held by Owingsville STP
- February 14, 2020: INEZ STP, Inez, KY0079316, held by Inez STP
- February 18, 2020: EMINENCE STP, Eminence, KY0026883, held by Eminence STP
- February 24, 2020: PAINTSVILLE STP, Paintsville, KY0020630, held by Paintsville STP
- February 24, 2020: OHIO COUNTY REGIONAL STP, Beaver Dam, KY0105791, held by Ohio County Regional STP
- February 26, 2020: WINGO STP, Wingo, KY0025852, held by Wingo STP
- March 9, 2020: KENTUCKY AMERICAN WATER CO - NORTHERN STP, Owenton, KY0028312, held by Kentucky American Water Co - Northern STP
- March 9, 2020: GREAT OAKS WWTF, Paducah, KY0080845, held by Great Oaks WWTF
DANVILLE STP among its neighbors
EPA’s permit file holds 19 discharge permits in the Clarks Run subwatershed (HUC 051002050505), KY0057193 among them. Its county holds 31, 1 of them major permits; KY0057193 is a major permit.
Other permits in the Clarks Run subwatershed (HUC 051002050505)
- BOYLE CO STATE MAINTENANCE GARAGE, Danville: KYR004607, minor permit, permit term to July 31, 2028
- BYPASS CENTRE SEC 4 SUBDIVISION, Danville: KYR10U260, minor permit, discharging to Balls Branch, permit term to December 31, 2029
- CULVER'S - DANVILLE, KY, Danville: KYR10U588, minor permit, discharging to Clarks Run, permit term to December 31, 2029
- DANVILLE STP, Danville: KYL057193, minor permit, permit term to December 31, 2025
- DANVILLE, CITY OF, Danville: KYG200014, minor permit, discharging to VARIOUS, permit term to March 31, 2015
- EPHRAIM MCDOWELL REGIONAL MEDICAL CENTER - FACILITY EXPANSION, Danville: KYR10T630, minor permit, discharging to Clarks Run, permit term to December 31, 2029
- EXPRESS OIL CHANGE - DANVILLE, Danville: KYR10U466, minor permit, discharging to Clarks Run, permit term to December 31, 2029
- J.W. BATE MIDDLE SCHOOL RENOVATION, Danville: KYR10U526, minor permit, discharging to Clarks Run, permit term to December 31, 2029
- JOHN H STIGALL DRIVE, Danville: KYR10U053, minor permit, discharging to Clarks Run, permit term to December 31, 2029
- LEBANON ROAD/CLARKS TRUNK SEWER - PHASE 2, Danville: KYR10U302, minor permit, discharging to Clarks Run, permit term to December 31, 2029
Identity
| Facility as filed | DANVILLE STP |
|---|---|
| Permittee as filed | Danville STP |
| NPDES ID | KY0057193 |
| 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 | February 21, 2020 |
| Expiration date | March 31, 2025 |
| Address | Danville, KY 40422 |
| Receiving water | CLARKS RUN |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Clarks Run (HUC 051002050505) |
Effluent limits and exceedances
- 122Pollutants on file
- 121Under a numeric limit
- 22With 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 122 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 6 | 11 | 11 | July 31, 2024 | 99% over the limit |
| Toxicity, final conc toxicity units | 1 | 10 | 10 | December 31, 2019 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 5 | 5 | June 30, 2024 | 265% over the limit |
| E. coli | 2 | 4 | 4 | October 31, 2022 | 24,900% over the limit |
| Phosphorus, total [as P] | 10 | 5 | 3 | June 30, 2024 | 37% over the limit |
| Oxygen, dissolved [DO] | 1 | 4 | 3 | June 30, 2024 | 25% over the limit |
| Solids, suspended percent removal | 1 | 3 | 3 | November 30, 2017 | 24% over the limit |
| Arsenic, total recoverable | 6 | 20 | 0 | ||
| Selenium, total recoverable | 6 | 20 | 0 | ||
| Nickel, total recoverable | 6 | 20 | 0 | ||
| Chromium, total recoverable | 6 | 20 | 0 | ||
| Silver total recoverable | 6 | 18 | 0 | ||
| Cadmium, total recoverable | 6 | 18 | 0 | ||
| Lead, total recoverable | 6 | 18 | 0 | ||
| Mercury, total recoverable | 6 | 16 | 0 | ||
| Chromium, hexavalent tot recoverable | 4 | 15 | 0 | ||
| Cyanide, free [amenable to chlorination] | 6 | 14 | 0 | ||
| Copper, total recoverable | 6 | 10 | 0 | ||
| Phenolics, total | 4 | 10 | 0 | ||
| Oil and grease | 0 | 10 | 0 | ||
| Zinc, total recoverable | 6 | 4 | 0 | ||
| pH | 2 | 3 | 0 | ||
| Solids, total suspended | 6 | 0 | 0 | ||
| Oil & Grease | 6 | 0 | 0 | ||
| Temperature, water deg. centigrade | 4 | 0 | 0 | ||
| Nitrogen, total [as N] | 4 | 0 | 0 | ||
| Chloride [as Cl] | 4 | 0 | 0 | ||
| Iron, total recoverable | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 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 | ||
| 1,2-Diphenylhydrazine | 2 | 0 | 0 | ||
| Ethylbenzene | 2 | 0 | 0 | ||
| Fluoranthene | 2 | 0 | 0 | ||
| Fluorene | 2 | 0 | 0 |
Inspections, violations and enforcement
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 23, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| April 4, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| April 4, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| September 16, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| April 14, 2020 | Effluent Violations - Failed Toxicity Test | ST6 |
| September 27, 2019 | Effluent Violations - Failed Toxicity Test | ST6 |
| February 16, 2018 | Effluent Violations - Failed Toxicity Test | ST6 |
| April 26, 2017 | Effluent Violations - Failed Toxicity Test | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 4, 2026 | Evaluation | S |
| August 26, 2026 | Audit | 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
EPA’s informal enforcement file holds no action for NPDES KY0057193.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.