Clean Water Act discharge permit · NPDES MDG493115

DAVIDSONVILLE PLANT, Davidsonville, MD: NPDES MDG493115 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
3Pollutants with an effluent exceedance

DAVIDSONVILLE PLANT, held by BRANDYWINE Sand & Gravel CO., Inc., holds NPDES permit MDG493115, which discharges to 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 (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	DAVIDSONVILLE PLANT
Permittee as filed	BRANDYWINE Sand & Gravel CO., Inc.
NPDES ID	MDG493115
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	Davidsonville, MD 21035
Receiving water	PATUXENT RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Stocketts Run-Patuxent River (HUC 020600060402)

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

Effluent limits and exceedances

7Pollutants on file
5Under a numeric limit
7With a violation of any kind
3With 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	2	67	15	June 30, 2023
Solids, settleable	1	39	8	May 31, 2013	380% over the limit
Solids, total suspended	2	57	7	November 30, 2018	400% over the limit
Flow, in conduit or thru treatment plant	2	124	0
pH change [range]	2	124	0
Temp. difference, summer [deg. F]	0	14	0
Temperature, summer [deg. F]	0	14	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 MDG493115.

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, MDG493115.

Start the watch

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 MDG493115 there.

Nearby on the register

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

This public-records page covers NPDES permit MDG493115 for the DAVIDSONVILLE PLANT in Davidsonville, MD, held by BRANDYWINE Sand & Gravel CO., Inc. and discharging to the PATUXENT RIVER, with the permit shown as administratively continued and classed as a minor discharger. The page lists 3 pollutants under a numeric limit and 3 pollutants with an effluent exceedance, and records the permit as issued December 1, 2011 and expiring April 30, 2015, with the status reflecting EPA's file as of September 15, 2026.