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Clean Water Act discharge permit · NPDES MDR003915

GENERAL MACHINE SHOP, INC., Hyattsville, MD: NPDES MDR003915 discharge permit, effluent exceedances, inspections, penalties

GENERAL MACHINE SHOP, INC., held by General Machine Shop, Inc., holds NPDES permit MDR003915. EPA’s file records it issued July 15, 2025 and expiring January 31, 2028. 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.

What the register holds for GENERAL MACHINE SHOP, INC.: its NPDES ID, its permit type and status, its dates, its address in Hyattsville, Maryland, and 2 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR003915.

Identity

Facility as filedGENERAL MACHINE SHOP, INC.
Permittee as filedGeneral Machine Shop, Inc.
NPDES IDMDR003915
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 15, 2025
Expiration dateJanuary 31, 2028
Issuing agencyMARYLAND DEPARTMENT OF THE ENVIRONMENT
AddressHyattsville, MD 20785
Receiving water impaired303(D) Listed
SubwatershedLower Anacostia River (HUC 020700100204)

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

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
Nitrite + Nitrate total [as N]100
Zinc, total [as Zn]100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDR003915.

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 MDR003915.

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.

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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 MDR003915 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MDR003915, held by General Machine Shop, Inc. in Hyattsville, MD, which EPA's file records as issued July 15, 2025 and expiring January 31, 2028. The page lists the permit as Effective, with a Minor Discharger class, 2 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.