Clean Water Act discharge permit · NPDES VA0020788
KILMARNOCK WASTEWATER TREATMENT PLANT, Kilmarnock, VA: NPDES VA0020788 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
KILMARNOCK WASTEWATER TREATMENT PLANT, held by Kilmarnock Wastewater Treatment Plant, holds NPDES permit VA0020788, which discharges to Chesapeake Bay/Great Wicomico River. EPA’s file records it issued October 25, 2016 and expiring October 31, 2021.
KILMARNOCK WASTEWATER TREATMENT PLANT, Kilmarnock, Virginia: Individual permit VA0020788, held by Kilmarnock Wastewater Treatment Plant; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued October 25, 2016, term to October 31, 2021, by STATE; discharges to Chesapeake Bay/Great Wicomico River; Sewage Treatment Facilities.
- Hardness, total [as CaCO3]: 1 limit, 15 violations of any kind, 14 effluent exceedances, latest October 31, 2025, largest 36% over the limit.
- Nitrogen, ammonia total [as N]: 2 limits, 10 violations of any kind, 10 effluent exceedances, latest February 28, 2025, largest 1,140% over the limit.
- Nitrogen, Kjeldahl, total [as N]: 4 limits, 7 violations of any kind, 7 effluent exceedances, latest February 28, 2025, largest 144% over the limit.
- Enterococci: 1 limit, 6 violations of any kind, 6 effluent exceedances, latest August 31, 2024, largest 1,466% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 3 violations of any kind, 3 effluent exceedances, latest July 31, 2025, largest 11% over the limit.
- Phosphorus, Total As P: 1 limit, 3 violations of any kind, 3 effluent exceedances, latest December 31, 2019, largest 13% over the limit.
- Solids, total suspended: 4 limits, 5 violations of any kind, 1 effluent exceedance, latest December 31, 2024, largest 13% over the limit.
- E. coli: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest November 30, 2018, largest 13% over the limit.
- Cyanide, free [amenable to chlorination]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Copper, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Sulfide, dissolved, [as S]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Hydrogen sulfide: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Coliform, fecal general: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- July 6, 2026: Letter of Violation/ Warning Letter (State).
- February 14, 2023: WW SSO - Discharge to Waters (ST6).
Virginia holds 336 Publicly owned treatment works coverages of this permit type in EPA’s file; 54 were issued before VA0020788. Kilmarnock Wastewater Treatment Plant holds 2 permits in Virginia.
Other permits held by Kilmarnock Wastewater Treatment Plant
- KILMARNOCK WASTEWATER TREATMENT PLANT, Kilmarnock: VAN020038, issued January 1, 2017
Coverages issued nearest VA0020788
- August 26, 2016: ORANGE TOWN SEWAGE TREATMENT PLANT, Orange, VA0021385, held by Orange Town Sewage Treatment Plant
- August 31, 2016: HAMILTON SEWAGE TREATMENT PLANT, Hamilton, VA0020974, held by Hamilton Sewage Treatment Plant
- September 26, 2016: MIDDLETOWN STP, Middletown, VA0020982, held by Middletown STP
- September 26, 2016: STANLEY STP, Stanley, VA0064394, held by Stanley STP
- September 29, 2016: MOUNT SIDNEY WWTP, Mount Sidney, VA0022322, held by Mt Sidney WWTP
- October 26, 2016: EDINBURG STP, Edinburg, VA0020508, held by Edinburg STP
- October 26, 2016: CHARLOTTE COUNTY SCHOOLS BACON DISTRICT ELEMENTARY, Saxe, VA0029319, held by Charlotte County Schools Bacon District Elementary
- October 26, 2016: LCSA - SAINT LOUIS COMMUNITY, Middleburg, VA0062189, held by LCSA - Saint Louis Community
- October 26, 2016: LEE COUNTY PSA - HICKORY FLATS WWTP, Jonesville, VA0089397, held by Lee County PSA - Hickory Flats WWTP
- October 27, 2016: FIGHTING CREEK WWTP, Powhatan, VA0089206, held by Fighting Creek WWTF
KILMARNOCK WASTEWATER TREATMENT PLANT among its neighbors
EPA’s permit file holds 11 discharge permits in the Fleets Bay-Lower Chesapeake Bay subwatershed (HUC 020801020105), VA0020788 among them. Its county holds 10, 0 of them major permits; VA0020788 is a minor permit.
Other permits in the Fleets Bay-Lower Chesapeake Bay subwatershed (HUC 020801020105)
- FRANKLIN MECHANICAL CONTRACTORS INCORPORATED, Kilmarnock: VAR10N242, minor permit, discharging to Lower Chesapeake Bay-Fleets Bay, permit term to June 30, 2024
- HARRIS ROAD SOLAR, Kilmarnock: VAR10T391, minor permit, discharging to Lower Chesapeake Bay-Fleets Bay, permit term to June 30, 2024
- KILMARNOCK WASTEWATER TREATMENT PLANT, Kilmarnock: VAN020038, minor permit, permit term to December 31, 2021
- LANCASTER COUNTY PUBLIC SCHOOLS, Weems: VAR10T270, minor permit, discharging to Lower Chesapeake Bay-Fleets Bay, permit term to June 30, 2024
- PLANTATION STORAGE, Kilmarnock: VAR10R279, minor permit, discharging to Eastern Branch Corrotoman River, permit term to June 30, 2024
- PRIDE OF VIRGINIA BAIT AND OYSTER COMPANY INC, White Stone: VAG524039, minor permit, discharging to Lower Chesapeake Bay-Fleets Bay, permit term to June 30, 2026
- RAPPAHANNOCK FAMILY CENTER, Lancaster County: VAR10M900, minor permit, discharging to Corrotoman River-Taylor Creek, permit term to June 30, 2024
- STAY THE COURSE LLC, White Stone: VAR10U725, minor permit, discharging to Lower Chesapeake Bay-Fleets Bay, permit term to June 30, 2029
- VENEY TOWNHOMES, Kilmarnock: VAR10T532, minor permit, discharging to Lower Chesapeake Bay-Fleets Bay, permit term to June 30, 2029
- WHITE STONE SEWAGE COLLECTION AND TREATMENT PLANT, White Stone: VAR10N942, minor permit, discharging to Rappahannock River-Locklies Creek, permit term to June 30, 2024
Identity
| Facility as filed | KILMARNOCK WASTEWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | Kilmarnock Wastewater Treatment Plant |
| NPDES ID | VA0020788 |
| 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 | October 25, 2016 |
| Expiration date | October 31, 2021 |
| Issuing agency | STATE |
| Address | Kilmarnock, VA 22482 |
| Receiving water | Chesapeake Bay/Great Wicomico River |
| Subwatershed | Fleets Bay-Lower Chesapeake Bay (HUC 020801020105) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 17Pollutants on file
- 17Under a numeric limit
- 11With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Hardness, total [as CaCO3] | 1 | 15 | 14 | October 31, 2025 | 36% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 10 | 10 | February 28, 2025 | 1,140% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 4 | 7 | 7 | February 28, 2025 | 144% over the limit |
| Enterococci | 1 | 6 | 6 | August 31, 2024 | 1,466% over the limit |
| Oxygen, dissolved [DO] | 1 | 3 | 3 | July 31, 2025 | 11% over the limit |
| Phosphorus, Total As P | 1 | 3 | 3 | December 31, 2019 | 13% over the limit |
| Solids, total suspended | 4 | 5 | 1 | December 31, 2024 | 13% over the limit |
| E. coli | 1 | 1 | 1 | November 30, 2018 | 13% over the limit |
| Cyanide, free [amenable to chlorination] | 2 | 2 | 0 | ||
| Zinc, total recoverable | 2 | 2 | 0 | ||
| Copper, total recoverable | 2 | 2 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Sulfide, dissolved, [as S] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Hydrogen sulfide | 2 | 0 | 0 | ||
| Coliform, fecal general | 1 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 14, 2023 | WW SSO - Discharge to Waters | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES VA0020788.
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 6, 2026 | Letter of Violation/ Warning Letter | State |
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.