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Clean Water Act discharge permit · NPDES MDG918415

SMO DORSEY SHELL 551, Hanover, MD: NPDES MDG918415 discharge permit, effluent exceedances, inspections, penalties

SMO DORSEY SHELL 551, held by SOUTHERN MARYLAND OIL, holds NPDES permit MDG918415. EPA’s file records it issued August 15, 2008 and expiring December 31, 2012.

SMO DORSEY SHELL 551, Hanover, Maryland: Coverage under a general permit MDG918415, held by SOUTHERN MARYLAND OIL; Effective; issued August 15, 2008, term to December 31, 2012, by MD DEPARTMENT OF THE ENVIRONMENT.

  • Methyl tert-butyl ether [MTBE]: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Benzene, ethylbenzene, toluene, xylene combination: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Toluene: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Benzene: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Ethylbenzene: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Petrol hydrocarbons, total recoverable: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Xylene [mix of m+o+p]: 0 limits, 8 violations of any kind, 0 effluent exceedances.

SMO DORSEY SHELL 551 among its neighbors

EPA’s permit file holds 31 discharge permits in the Deep Run-Patapsco River subwatershed (HUC 020600031102), MDG918415 among them. Its county holds 177, 7 of them major permits; MDG918415 is a minor permit.

Other permits in the Deep Run-Patapsco River subwatershed (HUC 020600031102)

Identity

Facility as filedSMO DORSEY SHELL 551
Permittee as filedSOUTHERN MARYLAND OIL
NPDES IDMDG918415
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 15, 2008
Expiration dateDecember 31, 2012
Issuing agencyMD DEPARTMENT OF THE ENVIRONMENT
AddressHanover, MD 21076
Receiving water impaired303(D) Listed
SubwatershedDeep Run-Patapsco River (HUC 020600031102)
SIC5541 – Gasoline Service Stations

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Methyl tert-butyl ether [MTBE]080
Benzene, ethylbenzene, toluene, xylene combination080
Toluene080
Benzene080
Ethylbenzene080
Petrol hydrocarbons, total recoverable080
Flow, in conduit or thru treatment plant080
Xylene [mix of m+o+p]080

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG918415.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDG918415.

Inspections

EPA’s inspection file holds no inspection for NPDES MDG918415.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MDG918415.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The SMO DORSEY SHELL 551 permit, held by SOUTHERN MARYLAND OIL under NPDES ID MDG918415, is one of 140 general permit coverages on EPA's NPDES register in Anne Arundel County, this one included. It sits among 31 NPDES permits in the Deep Run-Patapsco River subwatershed, this one included, and 9.4% of the 139 general permit coverages in Anne Arundel County carry an earlier issue date than this one. The permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance.