Clean Water Act discharge permit · NPDES MDG999341

HOLLY NECK MARINA, LLC, Essex, MD: NPDES MDG999341 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

HOLLY NECK MARINA, LLC holds NPDES permit MDG999341. EPA’s file records it issued September 28, 2022 and expiring July 31, 2027. 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.

What the register holds for HOLLY NECK MARINA, LLC: its NPDES ID, its permit type and status, its dates, its address in Essex, Maryland. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDG999341.

Identity

Facility as filed	HOLLY NECK MARINA, LLC
Permittee as filed	HOLLY NECK MARINA, LLC
NPDES ID	MDG999341
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	September 28, 2022
Expiration date	July 31, 2027
Issuing agency	MARYLAND DEPARTMENT OF THE ENVIRONMENT
Address	Essex, MD 21221
Receiving water impaired	303(D) Listed
Subwatershed	Middle River (HUC 020600030701)

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

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES MDG999341.

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 MDG999341.

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 MDG999341 there.

Nearby on the register

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

HOLLY NECK MARINA, LLC is one of 180 general permit coverages in Baltimore County, and 33.9% of those coverages have a violation on file. The permit sits among 14 NPDES permits in the Middle River subwatershed, this one included, and 51.1% of all 180 Baltimore County general permit coverages were issued earlier than it. The permit records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.