Clean Water Act discharge permit · NPDES MDG498011

ACCOKEEK(GASLIGHT)S&G FACILITY, Brandywine, MD: NPDES MDG498011 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
4Pollutants under a numeric limit
2Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ACCOKEEK(GASLIGHT)S&G FACILITY, held by ACCOKEEK (GASLIGHT) S & G FAC., holds NPDES permit MDG498011, which discharges to Mattawoman Creek. EPA’s file records it issued December 1, 2011 and expiring April 30, 2015.

ACCOKEEK(GASLIGHT)S&G FACILITY, Brandywine, Maryland: Coverage under a general permit MDG498011, held by ACCOKEEK (GASLIGHT) S & G FAC.; Administratively continued (past its expiration date and still in force until reissued); issued December 1, 2011, term to April 30, 2015, by Maryland Department of The Environment; discharges to MATTAWOMAN CREEK.

Solids, total suspended: 8 limits, 144 violations of any kind, 5 effluent exceedances, latest September 30, 2011, largest 57% over the limit.
Solids, settleable: 4 limits, 16 violations of any kind, 1 effluent exceedance, latest November 30, 2012, largest 14,199,900% over the limit.
pH: 8 limits, 176 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 8 limits, 80 violations of any kind, 0 effluent exceedances.
Flow, total: 0 limits, 20 violations of any kind, 0 effluent exceedances.
Chemical Oxygen Demand [COD]: 0 limits, 10 violations of any kind, 0 effluent exceedances.
Temp. difference, summer [deg. F]: 0 limits, 8 violations of any kind, 0 effluent exceedances.
Temperature, summer [deg. F]: 0 limits, 8 violations of any kind, 0 effluent exceedances.

ACCOKEEK(GASLIGHT)S&G FACILITY among its neighbors

EPA’s permit file holds 6 discharge permits in the Piney Branch-Mattawoman Creek subwatershed (HUC 020700110101), MDG498011 among them. Its county holds 155, 3 of them major permits; MDG498011 is a minor permit.

Other permits in the Piney Branch-Mattawoman Creek subwatershed (HUC 020700110101)

AUTUMN HILLS HOMEOWNERS ASSO., Waldorf: MDG870310, minor permit, discharging to MATAWOMAN CREEK, permit term to June 30, 2025
HAMPSHIRE NEIGHBORHOOD POOL, Waldorf: MDG767358, minor permit, permit term to November 30, 2027
SOUTHERN AREA AQUATICS AND RECREATION CENTER, Brandywine: MDG767279, minor permit, discharging to TIMOTHY BRANCH, permit term to December 31, 2026
SUMMERWOOD HOA, Accokeek: MDG870175, minor permit, permit term to March 31, 2025
THE GOTT COMPANY-BRANDYWINE PT, Brandywine: MDG344179, minor permit, discharging to POTOMAC L TIDAL, permit term to March 9, 2014

Identity

Facility as filed	ACCOKEEK(GASLIGHT)S&G FACILITY
Permittee as filed	ACCOKEEK (GASLIGHT) S & G FAC.
NPDES ID	MDG498011
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	Brandywine, MD 20613
Receiving water	MATTAWOMAN CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Piney Branch-Mattawoman Creek (HUC 020700110101)

Effluent limits and exceedances

8Pollutants on file
4Under a numeric limit
8With 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
Solids, total suspended	8	144	5	September 30, 2011	57% over the limit
Solids, settleable	4	16	1	November 30, 2012	14,199,900% over the limit
pH	8	176	0
Flow, in conduit or thru treatment plant	8	80	0
Flow, total	0	20	0
Chemical Oxygen Demand [COD]	0	10	0
Temp. difference, summer [deg. F]	0	8	0
Temperature, summer [deg. F]	0	8	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDG498011.

Inspections

EPA’s inspection file holds no inspection for NPDES MDG498011.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MDG498011.

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Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MDG498011 for the ACCOKEEK(GASLIGHT)S&G FACILITY in Brandywine, MD, which discharges to Mattawoman Creek and is listed in watershed HUC 020700110101. The page lists a permit status of Administratively continued, a Minor Discharger class of 4, 2 pollutants under a numeric limit, and 2 pollutants with an effluent exceedance.