Clean Water Act discharge permit · NPDES MDG679475
JOINT BASE ANDREWS DRINKING WATER SYSTEM, Jb Andrews, MD: NPDES MDG679475 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
JOINT BASE ANDREWS DRINKING WATER SYSTEM, held by US AIR FORCE, JOINT BASE ANDREWS, MARYLAND, holds NPDES permit MDG679475, which discharges to Washington Metropolitan. EPA’s file records it issued May 17, 2021 and expiring July 31, 2025. 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 | JOINT BASE ANDREWS DRINKING WATER SYSTEM |
|---|---|
| Permittee as filed | US AIR FORCE, JOINT BASE ANDREWS, MARYLAND |
| NPDES ID | MDG679475 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 17, 2021 |
| Expiration date | July 31, 2025 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Jb Andrews, MD 20762 |
| Receiving water | WASHINGTON METROPOLITAN |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Tinkers Creek (HUC 020700100304) |
| SIC | 4941 – Water Supply |
| Other EPA IDs (FRS) | RCRA handler MD0570024000; ICIS-AIR source MD0000002403300655 |
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
- 7Pollutants on file
- 0Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Temperature, water deg. fahrenheit | 0 | 84 | 0 | ||
| pH | 0 | 26 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 26 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 13 | 0 | ||
| Solids, total suspended | 0 | 13 | 0 | ||
| Oil & Grease | 0 | 13 | 0 | ||
| Chlorine, total residual | 0 | 13 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG679475.
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 MDG679475.
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 MDG679475 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.