Clean Water Act discharge permit · NPDES MDG499893

READY MIX CONCRETE PLANT, Frederick County, MD: NPDES MDG499893 discharge permit, effluent exceedances, inspections, penalties

Name: READY MIX CONCRETE PLANT, NPDES MDG499893: Clean Water Act discharge permit record
Creator: Velarion Records
License: https://www.usa.gov/government-works

Administratively continuedPermit status
MinorDischarger class
4Pollutants under a numeric limit
2Pollutants with an effluent exceedance

READY MIX CONCRETE PLANT holds NPDES permit MDG499893, which discharges to Lower Patuxent River. EPA’s file records it issued December 1, 2011 and expiring April 30, 2015. 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	READY MIX CONCRETE PLANT
Permittee as filed	READY MIX CONCRETE PLANT
NPDES ID	MDG499893
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	December 1, 2011
Expiration date	April 30, 2015
Issuing agency	Maryland Department of The Environment
Address	Frederick County, MD 21701
Receiving water	Lower Patuxent River
Subwatershed	Carroll Creek-Monocacy River (HUC 020700090606)
SIC	1442 – Construction Sand And Gravel

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

5Pollutants on file
4Under a numeric limit
5With a violation of any kind
2With 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	8	169	9	March 31, 2026
Solids, total suspended	8	136	3	January 31, 2026	182% over the limit
Flow, in conduit or thru treatment plant	8	140	0
Oil and grease	0	10	0
pH change [range]	8	4	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 MDG499893.

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 MDG499893 there.

Nearby on the register

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

The Velarion Records page covers Clean Water Act NPDES permit MDG499893 for READY MIX CONCRETE PLANT in Frederick County, MD, which discharges to the Lower Patuxent River and is administratively continued past its April 30, 2015 expiration. The page lists a Minor Discharger class, 4 pollutants under a numeric limit, and 2 pollutants with an effluent exceedance, with the permit issued December 1, 2011 and status as of October 14, 2026.