Clean Water Act discharge permit · NPDES VA0024988
UOSA - CENTREVILLE, Centreville, VA: NPDES VA0024988 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
UOSA - CENTREVILLE, held by Upper Occoquan Service Authority, holds NPDES permit VA0024988, which discharges to Lower Bull Run. EPA’s file records it issued May 21, 2018 and expiring May 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | UOSA - CENTREVILLE |
|---|---|
| Permittee as filed | Upper Occoquan Service Authority |
| NPDES ID | VA0024988 |
| 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 | May 21, 2018 |
| Expiration date | May 31, 2023 |
| Issuing agency | VA DEQ |
| Address | Centreville, VA 20121 |
| Receiving water | Lower Bull Run |
| Subwatershed | Lower Bull Run (HUC 020700100705) |
| Other EPA IDs (FRS) | RCRA handler VAD980716153; ICIS-AIR source VA0000005105900415 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 0With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Oxygen demand, chem. [low level] [COD] | 4 | 0 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 0 | 0 | ||
| Surfactants [MBAS] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| Turbidity | 1 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| E. coli | 1 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 1 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES VA0024988.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 24, 2023 | WW SSO - Discharge to Waters | ST6 |
| May 7, 2021 | Effluent Violations - Unapproved Bypass | ST6 |
| November 7, 2019 | Effluent Violations - Unapproved Bypass | ST6 |
| May 23, 2017 | Effluent Violations - Unapproved Bypass | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID VA0024988 there.
Nearby on the register
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- Every permit record in Virginia, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.