Clean Water Act discharge permit · NPDES MDR001881

OPTA MINERALS BALTIMORE, Baltimore, MD: NPDES MDR001881 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

OPTA MINERALS BALTIMORE, held by OPTA Minerals Baltimore, holds NPDES permit MDR001881. EPA’s file records it issued January 11, 2005 and expiring November 30, 2007. 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 OPTA MINERALS BALTIMORE: its NPDES ID, its permit type and status, its dates, its address in Baltimore, Maryland. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR001881.

Identity

Facility as filed	OPTA MINERALS BALTIMORE
Permittee as filed	OPTA Minerals Baltimore
NPDES ID	MDR001881
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	January 11, 2005
Expiration date	November 30, 2007
Address	Baltimore, MD 21224
Receiving water impaired	303(D) Listed
Subwatershed	Redhouse Creek-Back River (HUC 020600030702)
Other EPA IDs (FRS)	ICIS-AIR source MD0000002451003341

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

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES MDR001881.

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 MDR001881.

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, MDR001881.

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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 MDR001881 there.

Nearby on the register

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

The OPTA MINERALS BALTIMORE permit, filed under NPDES ID MDR001881, is one of 23 general permit coverages in Baltimore, and 4.3% of that group carry an earlier issue date than this permit's January 11, 2005. Among those same 23 Baltimore coverages, 26.1% have a violation on file, while this permit has none of the pollutant limit or effluent exceedance records, both counted at zero. The permit also falls among the 23 NPDES permits in the Redhouse Creek-Back River subwatershed, this one included.