Clean Water Act discharge permit · NPDES MDG679575

BALTIMORE GAS & ELECTRIC COMPANY, Baltimore, MD: NPDES MDG679575 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
1Pollutants with an effluent exceedance

BALTIMORE GAS & ELECTRIC COMPANY, held by Baltimore Gas and Electric, holds NPDES permit MDG679575, which discharges to Patapsco River. EPA’s file records it issued May 21, 2012 and expiring February 28, 2017. 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.

Identity

Facility as filed	BALTIMORE GAS & ELECTRIC COMPANY
Permittee as filed	Baltimore Gas and Electric
NPDES ID	MDG679575
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	May 21, 2012
Expiration date	February 28, 2017
Issuing agency	Maryland Department of The Environment
Address	Baltimore, MD 21230
Receiving water	PATAPSCO RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Northwest Harbor-Patapsco River (HUC 020600031203)
SIC	4619 – Pipelines
Other EPA IDs (FRS)	RCRA handler MDD000619395; ICIS-AIR source MD0000002451000005

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

9Pollutants on file
8Under a numeric limit
9With a violation of any kind
1With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	3	6	2	December 31, 2015	600% over the limit
pH	6	288	0
Flow, in conduit or thru treatment plant	6	286	0
Oil & Grease	1	139	0
Oxygen, dissolved [DO]	3	6	0
Chlorine, total residual	3	4	0
Temperature, water deg. fahrenheit	2	4	0
Flow	0	3	0
Temp. diff. between up/down stream deg. F	1	2	0

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 MDG679575.

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, MDG679575.

Start the watch

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 MDG679575 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit MDG679575, held by Baltimore Gas & Electric Company in Baltimore, MD, which discharges to the Patapsco River. The permit is administratively continued after its February 28, 2017 expiration, is classed as a minor discharger, and lists 8 as its discharger class, 1 pollutant under a numeric limit, and 1 pollutant with an effluent exceedance. The subwatershed is Northwest Harbor-Patapsco River, HUC 020600031203.