Clean Water Act discharge permit · NPDES VAG830647
DULLES DISCOVERY SOUTH 3 - GARAGE C, Herndon, VA: NPDES VAG830647 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 33Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
DULLES DISCOVERY SOUTH 3 - GARAGE C, held by DD SOUTH 3 LC, holds NPDES permit VAG830647, which discharges to Cub Run. EPA’s file records it issued March 1, 2023 and expiring February 29, 2028. 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 | DULLES DISCOVERY SOUTH 3 - GARAGE C |
|---|---|
| Permittee as filed | DD SOUTH 3 LC |
| NPDES ID | VAG830647 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 1, 2023 |
| Expiration date | February 29, 2028 |
| Issuing agency | Virginia |
| Address | Herndon, VA 20171 |
| Receiving water | Cub Run |
| Subwatershed | Cub Run (HUC 020700100704) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 33Pollutants on file
- 33Under a numeric limit
- 4With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Chromium, total recoverable | 1 | 2 | 2 | April 30, 2026 | 73% over the limit |
| Copper, total recoverable | 1 | 2 | 2 | April 30, 2026 | 244% over the limit |
| Zinc, total recoverable | 1 | 1 | 1 | March 31, 2026 | 36% over the limit |
| Lead, total recoverable | 1 | 1 | 1 | March 31, 2026 | 31% over the limit |
| pH | 6 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 0 | 0 | ||
| Arsenic, total recoverable | 1 | 0 | 0 | ||
| Selenium, total recoverable | 1 | 0 | 0 | ||
| Thallium, total recoverable | 1 | 0 | 0 | ||
| Nickel, total recoverable | 1 | 0 | 0 | ||
| Silver total recoverable | 1 | 0 | 0 | ||
| Cadmium, total recoverable | 1 | 0 | 0 | ||
| Antimony, total recoverable | 1 | 0 | 0 | ||
| Carbon tetrachloride | 1 | 0 | 0 | ||
| Chloroform | 1 | 0 | 0 | ||
| Chlorobenzene | 1 | 0 | 0 | ||
| Methylene chloride | 1 | 0 | 0 | ||
| Tetrachloroethylene | 1 | 0 | 0 | ||
| Trichlorofluoromethane | 1 | 0 | 0 | ||
| 1,1-Dichloroethane | 1 | 0 | 0 | ||
| 1,1-Dichloroethylene | 1 | 0 | 0 | ||
| 1,1,1-Trichloroethane | 1 | 0 | 0 | ||
| 1,1,2-Trichloroethane | 1 | 0 | 0 | ||
| 1,2-Dichloroethane, total weight | 1 | 0 | 0 | ||
| 1,2-Dichlorobenzene | 1 | 0 | 0 | ||
| Naphthalene | 1 | 0 | 0 | ||
| Vinyl chloride | 1 | 0 | 0 | ||
| Trichloroethylene | 1 | 0 | 0 | ||
| Petrol hydrocarbons, total recoverable | 1 | 0 | 0 | ||
| Mercury, total recoverable | 1 | 0 | 0 | ||
| cis-1,2-Dichloroethylene | 1 | 0 | 0 | ||
| trans-1,2-Dichloroethylene | 1 | 0 | 0 | ||
| Chloroethane | 1 | 0 | 0 |
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES VAG830647.
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 VAG830647 there.
Nearby on the register
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- Every permit record in Herndon, A to Z
- Discharge permits in Virginia
- Every permit record in Virginia, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.