Clean Water Act discharge permit · NPDES MDR000283

AMERICAN METASEAL, Halethorpe, MD: NPDES MDR000283 discharge permit, effluent exceedances, inspections, penalties

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

AMERICAN METASEAL, held by American Metaseal, holds NPDES permit MDR000283. EPA’s file records it issued January 29, 2003 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 AMERICAN METASEAL: its NPDES ID, its permit type and status, its dates, its address in Halethorpe, Maryland. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR000283.

Identity

Facility as filed	AMERICAN METASEAL
Permittee as filed	American Metaseal
NPDES ID	MDR000283
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 29, 2003
Expiration date	November 30, 2007
Issuing agency	MARYLAND DEPARTMENT OF THE ENVIRONMENT
Address	Halethorpe, MD 21227
Receiving water impaired	303(D) Listed
Subwatershed	Herbert Run-Patapsco River (HUC 020600031103)

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

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 MDR000283.

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 MDR000283.

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, MDR000283.

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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 MDR000283 there.

Nearby on the register

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

AMERICAN METASEAL, a general permit coverage in Halethorpe, Baltimore County, Maryland, is one of 180 such coverages in the county, and only 2.2% of those 180 carry an earlier issue date than this one. The permit shares the Herbert Run-Patapsco River subwatershed with 26 NPDES permits, this one included. None of its pollutants is held to a numeric limit, and none shows an effluent exceedance, while 33.9% of the county's 180 general permit coverages have a violation on file.