Clean Water Act discharge permit · NPDES VA0021067
NAVAL SUPPORT FACILITY DAHLGREN, Dahlgren, VA: NPDES VA0021067 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
NAVAL SUPPORT FACILITY DAHLGREN, held by Naval Support Facility, Dahlgr, holds NPDES permit VA0021067, which discharges to Potomac River. EPA’s file records it issued March 29, 2016 and expiring March 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NAVAL SUPPORT FACILITY DAHLGREN |
|---|---|
| Permittee as filed | Naval Support Facility, Dahlgr |
| NPDES ID | VA0021067 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Federal facility |
| Issued | March 29, 2016 |
| Expiration date | March 31, 2021 |
| Address | Dahlgren, VA 22448 |
| Receiving water | POTOMAC RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Gambo Creek-Potomac River (HUC 020700110305) |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler VA7170024684; ICIS-AIR source VA0000005109900001 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 16Pollutants on file
- 15Under a numeric limit
- 5With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 2 | 1 | 1 | August 31, 2018 | 28% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 1 | 1 | May 31, 1990 | 27% over the limit |
| Chlorine, total residual | 0 | 1 | 1 | May 31, 1990 | 24% over the limit |
| Enterococci | 1 | 7 | 0 | ||
| Coliform, fecal general | 1 | 7 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 0 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Nitrogen, Total As N | 1 | 0 | 0 | ||
| Phosphorus, Total As P | 1 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Cyprinodon variegatus | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 22, 2018 | Effluent Violations - Unapproved Bypass | ST6 |
| May 18, 2018 | 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 VA0021067 there.
Nearby on the register
- Discharge permits in Dahlgren
- Every permit record in Dahlgren, A to Z
- Discharge permits in Virginia
- Every permit record in Virginia, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.