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Clean Water Act discharge permit · NPDES MDG679745

POTOMAC ELECTRIC POWER COMPANY, Silver Spring, MD: NPDES MDG679745 discharge permit, effluent exceedances, inspections, penalties

POTOMAC ELECTRIC POWER COMPANY holds NPDES permit MDG679745, which discharges to Various Streams. EPA’s file records it issued September 24, 2021 and expiring July 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 POTOMAC ELECTRIC POWER COMPANY: its NPDES ID, its permit type and status, its dates, its address in Silver Spring, Maryland, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDG679745.

Identity

Facility as filedPOTOMAC ELECTRIC POWER COMPANY
Permittee as filedPOTOMAC ELECTRIC POWER COMPANY
NPDES IDMDG679745
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 24, 2021
Expiration dateJuly 31, 2025
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressSilver Spring, MD 20901
Receiving waterVARIOUS STREAMS
Receiving water impaired303(D) Listed
SubwatershedNorthwest Branch Anacostia River (HUC 020700100201)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MDG679745.

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 MDG679745.

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, MDG679745.

Start the watch

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 MDG679745 there.

Nearby on the register

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