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Clean Water Act discharge permit · NPDES MDR000328

WMATA - NEW CARROLLTON YARD, Hyattsville, MD: NPDES MDR000328 discharge permit, effluent exceedances, inspections, penalties

WMATA - NEW CARROLLTON YARD, held by WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY, holds NPDES permit MDR000328, which discharges to Anacostia River. 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 (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for WMATA - NEW CARROLLTON YARD: its NPDES ID, its permit type and status, its dates, its address in Hyattsville, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR000328.

Identity

Facility as filedWMATA - NEW CARROLLTON YARD
Permittee as filedWASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY
NPDES IDMDR000328
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 12, 2023
Expiration dateJanuary 31, 2028
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressHyattsville, MD 20785
Receiving waterANACOSTIA RIVER
Receiving water impaired303(D) Listed
SubwatershedLower Anacostia River (HUC 020700100204)
Other EPA IDs (FRS)ICIS-AIR source MD0000002403302163

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MDR000328.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDR000328.

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, MDR000328.

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How often?
  • 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 MDR000328 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The WMATA - NEW CARROLLTON YARD permit is one of 4 general permit coverages on EPA's NPDES register in Hyattsville, and it sits among 20 NPDES permits in the Lower Anacostia River subwatershed. The permit records no pollutants under a numeric limit and no effluent exceedances, each counted as 0.