Clean Water Act discharge permit · NPDES KY0103217
MILLSTONE ALTERNATIVE TRMT SYS, Millstone, KY: NPDES KY0103217 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
MILLSTONE ALTERNATIVE TRMT SYS, held by Millstone Alternative Trmt Sys, holds NPDES permit KY0103217, which discharges to North Fork / Kentucky River. EPA’s file records it issued November 26, 2014 and expiring December 31, 2019.
MILLSTONE ALTERNATIVE TRMT SYS, Millstone, Kentucky: Individual permit KY0103217, held by Millstone Alternative Trmt Sys; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued November 26, 2014, term to December 31, 2019; discharges to NORTH FORK / KENTUCKY RIVER.
- Chlorine, total residual: 2 limits, 32 violations of any kind, 24 effluent exceedances, latest June 30, 2023, largest 72,809% over the limit.
- E. coli: 2 limits, 25 violations of any kind, 19 effluent exceedances, latest June 30, 2020, largest 1,762% over the limit.
- Coliform, fecal general: 0 limits, 14 violations of any kind, 8 effluent exceedances, latest September 30, 2007, largest 99,999% over the limit.
- Solids, total suspended: 4 limits, 41 violations of any kind, 5 effluent exceedances, latest June 30, 2011, largest 180% over the limit.
- BOD, 5-day, 20 deg. C: 4 limits, 38 violations of any kind, 4 effluent exceedances, latest December 31, 2010, largest 273% over the limit.
- Nitrogen, ammonia total [as N]: 4 limits, 35 violations of any kind, 1 effluent exceedance, latest June 30, 2011, largest 24% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 13 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 12 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 6 violations of any kind, 0 effluent exceedances.
- July 17, 2026: Effluent Violations - Narrative Effluent Violation (ST6).
- July 17, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
- July 17, 2026: Permit Violations - Discharge Without a Valid Permit (ST6).
- July 17, 2026: Reconnaissance without Sampling (S).
- February 17, 2026: Permit Violations - Discharge Without a Valid Permit (ST6).
- February 17, 2026: Effluent Violations - Narrative Effluent Violation (ST6).
- February 17, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
- February 17, 2026: Reconnaissance without Sampling (S).
- October 29, 2025: Effluent Violations - Narrative Effluent Violation (ST6).
- October 29, 2025: Management Practice Violations - Improper Operation and Maintenance (ST6).
- July 22, 2025: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 25, 2025: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 25, 2025: Effluent Violations - Narrative Effluent Violation (ST6).
- October 23, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- October 23, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- May 7, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- May 7, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 25, 2024: Management Practice Violations - Improper Operation and Maintenance (ST6).
- March 25, 2024: Effluent Violations - Narrative Effluent Violation (ST6).
- September 16, 2020: Permit Violations - Violation Specified in Comment (ST6).
- July 26, 2019: Management Practice Violations - Improper Operation and Maintenance (ST6).
- May 31, 2019: Management Practice Violations - Improper Operation and Maintenance (ST6).
- August 9, 2018: Permit Violations - Violation Specified in Comment (ST6).
- January 23, 2018: Management Practice Violations - Improper Operation and Maintenance (ST6).
Kentucky holds 294 Publicly owned treatment works coverages of this permit type in EPA’s file; 58 were issued before KY0103217.
Coverages issued nearest KY0103217
- September 15, 2014: LANCASTER WWTP, Lancaster, KY0020974, held by Lancaster WWTP
- September 16, 2014: LA GRANGE STP, La Grange, KY0020001, held by La Grange STP
- October 24, 2014: BLACK OAK INDUSTRIAL PARK, Vanceburg, KY0092061, held by Black Oak Industrial Park
- October 28, 2014: SCOTTSVILLE STP, Scottsville, KY0024783, held by Scottsville STP
- November 12, 2014: EAST CALLOWAY COUNTY ELEMENTARY SCHOOL, Murray, KY0040738, held by East Calloway County Elementary School
- December 5, 2014: SHELBYVILLE STP, Shelbyville, KY0020427, held by Shelbyville STP
- April 23, 2015: BARBOURVILLE STP, Barbourville, KY0024082, held by Barbourville STP
- April 24, 2015: TAYLORSVILLE STP, Taylorsville, KY0028142, held by Taylorsville STP
- April 24, 2015: CLARKSON STP, Clarkson, KY0090590, held by Clarkson STP
- May 5, 2015: CYNTHIANA STP (NEW), Cynthiana, KY0105856, held by Cynthiana STP New
MILLSTONE ALTERNATIVE TRMT SYS among its neighbors
EPA’s permit file holds 2 discharge permits in the Millstone Creek-North Fork Kentucky River subwatershed (HUC 051002010102), KY0103217 among them. Its county holds 68, 0 of them major permits; KY0103217 is a minor permit.
Other permits in the Millstone Creek-North Fork Kentucky River subwatershed (HUC 051002010102)
- LETCHER COUNTY TRANSFER STATION NO 1, Millstone: KY0092207, minor permit, discharging to MILLSTONE CRK / RIGHT FORK, permit term to July 31, 2013
Identity
| Facility as filed | MILLSTONE ALTERNATIVE TRMT SYS |
|---|---|
| Permittee as filed | Millstone Alternative Trmt Sys |
| NPDES ID | KY0103217 |
| 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 | November 26, 2014 |
| Expiration date | December 31, 2019 |
| Address | Millstone, KY 41838 |
| Receiving water | NORTH FORK / KENTUCKY RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Millstone Creek-North Fork Kentucky River (HUC 051002010102) |
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 9With a violation of any kind
- 6With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 32 | 24 | June 30, 2023 | 72,809% over the limit |
| E. coli | 2 | 25 | 19 | June 30, 2020 | 1,762% over the limit |
| Coliform, fecal general | 0 | 14 | 8 | September 30, 2007 | 99,999% over the limit |
| Solids, total suspended | 4 | 41 | 5 | June 30, 2011 | 180% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 38 | 4 | December 31, 2010 | 273% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 35 | 1 | June 30, 2011 | 24% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 13 | 0 | ||
| pH | 2 | 12 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 6 | 0 |
Inspections, violations and enforcement
- 22Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 17, 2026 | Effluent Violations - Narrative Effluent Violation | ST6 |
| July 17, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 17, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| February 17, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| February 17, 2026 | Effluent Violations - Narrative Effluent Violation | ST6 |
| February 17, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 29, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| October 29, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 22, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 25, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 25, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| October 23, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| October 23, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 7, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| May 7, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 25, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 25, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| September 16, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| July 26, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 31, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 9, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| January 23, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| July 17, 2026 | Reconnaissance without Sampling | S |
| February 17, 2026 | Reconnaissance without Sampling | 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 KY0103217.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.