Clean Water Act discharge permit · NPDES MDG999335

SEVERN MARINE SERVICES, INC., Tilghman, MD: NPDES MDG999335 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
6Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

SEVERN MARINE SERVICES, INC., held by CARL W. GRIEBEL, holds NPDES permit MDG999335, which discharges to Lower Choptank River. EPA’s file records it issued February 1, 2012 and expiring February 28, 2016.

SEVERN MARINE SERVICES, INC., Tilghman, Maryland: Coverage under a general permit MDG999335, held by CARL W. GRIEBEL; Administratively continued (past its expiration date and still in force until reissued); issued February 1, 2012, term to February 28, 2016, by Maryland Department of The Environment; discharges to Lower Choptank River.

Solids, total suspended: 2 limits, 12 violations of any kind, 0 effluent exceedances.
Oil & Grease: 2 limits, 12 violations of any kind, 0 effluent exceedances.
Flow: 1 limit, 12 violations of any kind, 0 effluent exceedances.
Copper, total [as Cu]: 2 limits, 5 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 2 limits, 5 violations of any kind, 0 effluent exceedances.
Zinc, total [as Zn]: 2 limits, 5 violations of any kind, 0 effluent exceedances.

SEVERN MARINE SERVICES, INC. among its neighbors

EPA’s permit file holds 3 discharge permits in the Harris Creek-Coptank River subwatershed (HUC 020600050506), MDG999335 among them. Its county holds 56, 0 of them major permits; MDG999335 is a minor permit.

Other permits in the Harris Creek-Coptank River subwatershed (HUC 020600050506)

MUDDY RUN WHS, Drumore: PAD360090, minor permit, discharging to Unnamed Stream, permit term to June 1, 2028
WHITMAN WHARF SEAFOOD, LLC., Wittman: MDG520800, minor permit, permit term to October 31, 2027

Identity

Facility as filed	SEVERN MARINE SERVICES, INC.
Permittee as filed	CARL W. GRIEBEL
NPDES ID	MDG999335
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	February 1, 2012
Expiration date	February 28, 2016
Issuing agency	Maryland Department of The Environment
Address	Tilghman, MD 21671
Receiving water	Lower Choptank River
Receiving water impaired	303(D) Listed
Subwatershed	Harris Creek-Coptank River (HUC 020600050506)

Effluent limits and exceedances

6Pollutants on file
6Under a numeric limit
6With 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
Solids, total suspended	2	12
Oil & Grease	2	12
Flow	1	12
Copper, total [as Cu]	2	5
Lead, total [as Pb]	2	5
Zinc, total [as Zn]	2	5

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDG999335.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MDG999335.

Inspections

EPA’s inspection file holds no inspection for NPDES MDG999335.

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 MDG999335.

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

This public-records page covers NPDES permit MDG999335, held by Severn Marine Services, Inc. and its permittee Carl W. Griebel, which discharges to the Lower Choptank River under a Minor Discharger class 6 status. The page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit shown as administratively continued after its February 28, 2016 expiration.