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Clean Water Act discharge permit · NPDES MDR003421

MORGANTOWN GENERATING STATION, Newburg, MD: NPDES MDR003421 discharge permit, effluent exceedances, inspections, penalties

MORGANTOWN GENERATING STATION, held by GENON MID-ATLANTIC, LLC, holds NPDES permit MDR003421, which discharges to Potomac River L. Tidal. EPA’s file records it issued August 14, 2020 and expiring December 31, 2025. 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 MORGANTOWN GENERATING STATION: its NPDES ID, its permit type and status, its dates, its address in Newburg, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR003421.

Identity

Facility as filedMORGANTOWN GENERATING STATION
Permittee as filedGENON MID-ATLANTIC, LLC
NPDES IDMDR003421
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 14, 2020
Expiration dateDecember 31, 2025
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressNewburg, MD 20664
Receiving waterPOTOMAC RIVER L. TIDAL
Receiving water impaired303(D) Listed
SubwatershedGambo Creek-Potomac River (HUC 020700110305)
Other EPA IDs (FRS)RCRA handler MDD053936464

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 MDR003421.

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 MDR003421.

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, MDR003421.

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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 MDR003421 there.

Nearby on the register

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

What this page shows

The MORGANTOWN GENERATING STATION permit is one of 3 NPDES permits in the Gambo Creek-Potomac River subwatershed, including this one. It sits among 34 general permit coverages in Charles County, and 32.4% of those coverages were issued earlier than this one, while the permit has 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.