Clean Water Act discharge permit · NPDES MDR000327
WMATA - SHADY GROVE RAIL YARD, Rockville, MD: NPDES MDR000327 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
WMATA - SHADY GROVE RAIL YARD, held by WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY, holds NPDES permit MDR000327, which discharges to Rock Creek. EPA’s file records it issued September 12, 2023 and expiring January 31, 2028. 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.
What the register holds for WMATA - SHADY GROVE RAIL YARD: its NPDES ID, its permit type and status, its dates, its address in Rockville, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR000327.
Identity
| Facility as filed | WMATA - SHADY GROVE RAIL YARD |
|---|---|
| Permittee as filed | WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY |
| NPDES ID | MDR000327 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 12, 2023 |
| Expiration date | January 31, 2028 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Rockville, MD 20855 |
| Receiving water | ROCK CREEK |
| Subwatershed | Upper Rock Creek (HUC 020700100101) |
| SIC | 4111 – Local And Suburban Transit |
| Other EPA IDs (FRS) | RCRA handler MDD985369982; ICIS-AIR source MD0000002403101949 |
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
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MDR000327.
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 MDR000327.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MDR000327.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MDR000327 there.
Nearby on the register
- Discharge permits in Rockville
- Every permit record in Rockville, A to Z
- Discharge permits in Maryland
- Every permit record in Maryland, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.