Clean Water Act discharge permit · NPDES MDG490032

CELTIC DEMOLITION, INC., District Heights, MD: NPDES MDG490032 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
2Pollutants under a numeric limit
0Pollutants with an effluent exceedance

CELTIC DEMOLITION, INC. holds NPDES permit MDG490032. EPA’s file records it issued August 16, 2022 and expiring April 30, 2023. 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	CELTIC DEMOLITION, INC.
Permittee as filed	CELTIC DEMOLITION, INC.
NPDES ID	MDG490032
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	August 16, 2022
Expiration date	April 30, 2023
Issuing agency	Maryland Department of the Environment
Address	District Heights, MD 20747
Receiving water impaired	303(D) Listed
Subwatershed	Southwest Branch of the Western Branch Patuxent River (HUC 020600060301)
SIC	4953 – Refuse Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

2Pollutants on file
2Under a numeric limit
2With a violation of any kind
0With 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
pH	4	32	0
Solids, total suspended	4	32	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG490032.

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 MDG490032.

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 MDG490032 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MDG490032, held by CELTIC DEMOLITION, INC. in District Heights, MD, and lists its permit status as administratively continued with a Minor Discharger class 2. The page reports 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, within the Southwest Branch of the Western Branch Patuxent River (HUC 020600060301).