Clean Water Act discharge permit · NPDES KY0021202
AUBURN WWTP, Auburn, KY: NPDES KY0021202 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 32Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
AUBURN WWTP, held by Auburn WWTP, holds NPDES permit KY0021202, which discharges to Blacklick Crk. EPA’s file records it issued April 29, 2020 and expiring June 30, 2025.
AUBURN WWTP, Auburn, Kentucky: Individual permit KY0021202, held by Auburn WWTP; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued April 29, 2020, term to June 30, 2025; discharges to BLACKLICK CRK; Sewage Treatment Facilities.
- E. coli: 4 limits, 50 violations of any kind, 46 effluent exceedances, latest July 31, 2026, largest 99,999% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 12 limits, 38 violations of any kind, 30 effluent exceedances, latest January 31, 2026, largest 10,025% over the limit.
- Nitrogen, ammonia total [as N]: 4 limits, 32 violations of any kind, 28 effluent exceedances, latest August 31, 2022, largest 250% over the limit.
- Toxicity, final conc toxicity units: 2 limits, 17 violations of any kind, 16 effluent exceedances, latest March 31, 2026, largest 554% over the limit.
- Solids, total suspended: 12 limits, 22 violations of any kind, 14 effluent exceedances, latest January 31, 2024, largest 3,433% over the limit.
- Solids, suspended percent removal: 2 limits, 8 violations of any kind, 7 effluent exceedances, latest February 28, 2025, largest 567% over the limit.
- BOD, carb-5 day, 20 deg C, percent removal: 2 limits, 6 violations of any kind, 5 effluent exceedances, latest January 31, 2026, largest 567% over the limit.
- pH: 4 limits, 4 violations of any kind, 2 effluent exceedances, latest July 31, 2022.
- Oxygen, dissolved [DO]: 2 limits, 2 violations of any kind, 1 effluent exceedance, latest July 31, 2022, largest 94% over the limit.
- Coliform, fecal general: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest February 29, 2008, largest 99,999% over the limit.
- Oil & Grease: 12 limits, 6 violations of any kind, 0 effluent exceedances.
- Cyanide, free [amenable to chlorination]: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Arsenic, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Selenium, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Silver total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Copper, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Mercury, total recoverable: 8 limits, 6 violations of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl Total: 4 limits, 6 violations of any kind, 0 effluent exceedances.
- Nitrite Plus Nitrate Total: 4 limits, 6 violations of any kind, 0 effluent exceedances.
- Solids, total dissolved [TDS]: 4 limits, 6 violations of any kind, 0 effluent exceedances.
- Thallium, total recoverable: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Beryllium, total recoverable [as Be]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Antimony, total recoverable: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Dichlorobromomethane: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Carbon tetrachloride: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- 1,2-Dichloroethane: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Bromoform: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Chloroform: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Toluene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Benzene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Acenaphthylene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Acenaphthene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Acrolein: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Acrylonitrile: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Anthracene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Benzo[k]fluoranthene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Benzo[a]pyrene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroethyl] ether: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroethoxy]methane: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroisopropyl] ether: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Butyl benzyl phthalate: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Chlorobenzene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Chlorodibromomethane: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Chrysene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Diethyl phthalate: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Dimethyl phthalate: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- 1,2-Diphenylhydrazine: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Ethylbenzene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Fluoranthene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Fluorene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Hexachlorocyclopentadiene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Hexachloroethane: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Indeno[1,2,3-cd]pyrene: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Isophorone: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Methyl bromide [Bromomethane]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- September 15, 2026: Notice of Violation (State).
- September 8, 2026: Effluent Violations - Failed Toxicity Test (ST6).
- July 23, 2026: Notice of Violation (State).
- May 27, 2026: Audit (S).
- May 12, 2026: Notice of Violation (State).
- May 8, 2026: Effluent Violations - Failed Toxicity Test (ST6).
- March 4, 2026: Effluent Violations - Narrative Effluent Violation (ST6).
- March 4, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 4, 2026: Permit Violations - Violation Specified in Comment (ST6).
- March 4, 2026: Evaluation (S).
Kentucky holds 294 Publicly owned treatment works coverages of this permit type in EPA’s file; 263 were issued before KY0021202.
Coverages issued nearest KY0021202
- 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
- April 28, 2020: GEORGETOWN STP #2, Georgetown, KY0082007, held by Georgetown STP #2
- May 1, 2020: WARSAW STP, Warsaw, KY0028118, held by Warsaw STP
- May 12, 2020: BCSD HILLVIEW #3, Hillview, KY0034177, held by Louisville and Jefferson County MSD
- May 12, 2020: BCSD WILLABROOK SANITATION, Shepherdsville, KY0094307, held by Louisville and Jefferson County MSD
- May 21, 2020: OLDHAM COUNTY ENVIRONMENTAL AUTHORITY REGIONAL WWTP, Crestwood, KY0111716, held by Louisville and Jefferson County MSD
- June 3, 2020: GOLDEN ACRES WWTF, Sharpe, KY0044164, held by Golden Acres WWTF
AUBURN WWTP among its neighbors
EPA’s permit file holds 3 discharge permits in the Clear Fork Creek subwatershed (HUC 051100020802), KY0021202 among them. Its county holds 49, 2 of them major permits; KY0021202 is a minor permit.
Other permits in the Clear Fork Creek subwatershed (HUC 051100020802)
- CHAMPION PETFOODS USA INC, Auburn: KYR004178, minor permit, permit term to July 31, 2023
- CHARLES D RIZZUTI RESIDENCE, Rockfield: KYG405733, minor permit, permit term to August 31, 2028
Identity
| Facility as filed | AUBURN WWTP |
|---|---|
| Permittee as filed | Auburn WWTP |
| NPDES ID | KY0021202 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 29, 2020 |
| Expiration date | June 30, 2025 |
| Address | Auburn, KY 42206 |
| Receiving water | BLACKLICK CRK |
| Subwatershed | Clear Fork Creek (HUC 051100020802) |
| Program components on file | POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler KYR000011064 |
Effluent limits and exceedances
- 123Pollutants on file
- 32Under a numeric limit
- 119With a violation of any kind
- 10With 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 123 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli | 4 | 50 | 46 | July 31, 2026 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 12 | 38 | 30 | January 31, 2026 | 10,025% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 32 | 28 | August 31, 2022 | 250% over the limit |
| Toxicity, final conc toxicity units | 2 | 17 | 16 | March 31, 2026 | 554% over the limit |
| Solids, total suspended | 12 | 22 | 14 | January 31, 2024 | 3,433% over the limit |
| Solids, suspended percent removal | 2 | 8 | 7 | February 28, 2025 | 567% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 2 | 6 | 5 | January 31, 2026 | 567% over the limit |
| pH | 4 | 4 | 2 | July 31, 2022 | |
| Oxygen, dissolved [DO] | 2 | 2 | 1 | July 31, 2022 | 94% over the limit |
| Coliform, fecal general | 0 | 1 | 1 | February 29, 2008 | 99,999% over the limit |
| Oil & Grease | 12 | 6 | 0 | ||
| Cyanide, free [amenable to chlorination] | 8 | 6 | 0 | ||
| Arsenic, total recoverable | 8 | 6 | 0 | ||
| Selenium, total recoverable | 8 | 6 | 0 | ||
| Nickel, total recoverable | 8 | 6 | 0 | ||
| Silver total recoverable | 8 | 6 | 0 | ||
| Zinc, total recoverable | 8 | 6 | 0 | ||
| Cadmium, total recoverable | 8 | 6 | 0 | ||
| Lead, total recoverable | 8 | 6 | 0 | ||
| Chromium, total recoverable | 8 | 6 | 0 | ||
| Copper, total recoverable | 8 | 6 | 0 | ||
| Mercury, total recoverable | 8 | 6 | 0 | ||
| Nitrogen, Kjeldahl Total | 4 | 6 | 0 | ||
| Nitrite Plus Nitrate Total | 4 | 6 | 0 | ||
| Solids, total dissolved [TDS] | 4 | 6 | 0 | ||
| Thallium, total recoverable | 0 | 6 | 0 | ||
| Beryllium, total recoverable [as Be] | 0 | 6 | 0 | ||
| Antimony, total recoverable | 0 | 6 | 0 | ||
| Dichlorobromomethane | 0 | 6 | 0 | ||
| Carbon tetrachloride | 0 | 6 | 0 | ||
| 1,2-Dichloroethane | 0 | 6 | 0 | ||
| Bromoform | 0 | 6 | 0 | ||
| Chloroform | 0 | 6 | 0 | ||
| Toluene | 0 | 6 | 0 | ||
| Benzene | 0 | 6 | 0 | ||
| Acenaphthylene | 0 | 6 | 0 | ||
| Acenaphthene | 0 | 6 | 0 | ||
| Acrolein | 0 | 6 | 0 | ||
| Acrylonitrile | 0 | 6 | 0 | ||
| Anthracene | 0 | 6 | 0 | ||
| Benzo[k]fluoranthene | 0 | 6 | 0 | ||
| Benzo[a]pyrene | 0 | 6 | 0 | ||
| Bis[2-chloroethyl] ether | 0 | 6 | 0 | ||
| Bis[2-chloroethoxy]methane | 0 | 6 | 0 | ||
| Bis[2-chloroisopropyl] ether | 0 | 6 | 0 | ||
| Butyl benzyl phthalate | 0 | 6 | 0 | ||
| Chlorobenzene | 0 | 6 | 0 | ||
| Chlorodibromomethane | 0 | 6 | 0 | ||
| Chrysene | 0 | 6 | 0 | ||
| Diethyl phthalate | 0 | 6 | 0 | ||
| Dimethyl phthalate | 0 | 6 | 0 | ||
| 1,2-Diphenylhydrazine | 0 | 6 | 0 | ||
| Ethylbenzene | 0 | 6 | 0 | ||
| Fluoranthene | 0 | 6 | 0 | ||
| Fluorene | 0 | 6 | 0 | ||
| Hexachlorocyclopentadiene | 0 | 6 | 0 | ||
| Hexachloroethane | 0 | 6 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 0 | 6 | 0 | ||
| Isophorone | 0 | 6 | 0 | ||
| Methyl bromide [Bromomethane] | 0 | 6 | 0 |
Inspections, violations and enforcement
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 8, 2026 | Effluent Violations - Failed Toxicity Test | ST6 |
| May 8, 2026 | Effluent Violations - Failed Toxicity Test | ST6 |
| March 4, 2026 | Effluent Violations - Narrative Effluent Violation | ST6 |
| March 4, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 4, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| May 27, 2026 | Audit | S |
| March 4, 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 |
|---|---|---|
| September 15, 2026 | Notice of Violation | State |
| July 23, 2026 | Notice of Violation | State |
| May 12, 2026 | Notice of Violation | State |
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.