Clean Water Act discharge permit · NPDES MDG490052

AMERICAN CONCRETE, LLC., Cumberland, MD: NPDES MDG490052 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
2Pollutants under a numeric limit
1Pollutants with an effluent exceedance

AMERICAN CONCRETE, LLC., held by AMERICAN CONCRETE, LLC, holds NPDES permit MDG490052, which discharges to Wills Creek. EPA’s file records it issued February 28, 2024 and expiring April 30, 2029. 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	AMERICAN CONCRETE, LLC.
Permittee as filed	AMERICAN CONCRETE, LLC
NPDES ID	MDG490052
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	February 28, 2024
Expiration date	April 30, 2029
Issuing agency	MARYLAND DEPARTMENT OF THE ENVIRONMENTY
Address	Cumberland, MD 21502
Receiving water	WILLS CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Braddock Creek-Wills Creek (HUC 020700020507)
SIC	3273 – Ready-Mixed Concrete

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
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	2	5	3	June 30, 2026	360% over the limit
pH	4	10	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 MDG490052.

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

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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 MDG490052 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 MDG490052, held by AMERICAN CONCRETE, LLC. in Cumberland, MD, which discharges to Wills Creek and is listed as a minor discharger in the Braddock Creek-Wills Creek subwatershed (HUC 020700020507). The page shows the permit status as Effective, with 1 pollutant under a numeric limit and 1 pollutant with an effluent exceedance, and the permit was issued February 28, 2024 and expires April 30, 2029.