Clean Water Act discharge permit · NPDES MAR05J07M

ADMIRALS HILL MARINA, Chelsea, MA: NPDES MAR05J07M discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
22Pollutants under a numeric limit
0Pollutants with an effluent exceedance

ADMIRALS HILL MARINA, held by Admirals Hill Marina, holds NPDES permit MAR05J07M. EPA’s file records it issued December 25, 2023 and expiring February 28, 2026. 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	ADMIRALS HILL MARINA
Permittee as filed	Admirals Hill Marina
NPDES ID	MAR05J07M
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
Program	Industrial stormwater
Issued	December 25, 2023
Expiration date	February 28, 2026
Issuing agency	U.S. EPA
Address	Chelsea, MA 02150
Receiving water impaired	303(D) Listed
Subwatershed	Mystic River-Frontal Boston Harbor (HUC 010900010502)
SIC	4493 – Marinas

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

22Pollutants on file
22Under a numeric limit
22With 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
Zinc, total recoverable	2	5
Aluminum, total recoverable	2	5
Lead, total recoverable	2	5
Copper, total recoverable	2	5
Acenaphthylene	2	2
Acenaphthene	2	2
Anthracene	2	2
Benzo[b]fluoranthene	2	2
Benzo[k]fluoranthene	2	2
Benzo[a]pyrene	2	2
Chrysene	2	2
Fluoranthene	2	2
Fluorene	2	2
Indeno[1,2,3-cd]pyrene	2	2
Phenanthrene	2	2
Pyrene	2	2
Benzo[ghi]perylene	2	2
Benzo[a]anthracene	2	2
Dibenz[a,h]anthracene	2	2
Naphthalene	2	2
Nitrogen, ammonia, tot unionized [as N]	2	1
Oil petroleum, total recoverable	2	1

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MAR05J07M.

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 MAR05J07M.

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

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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 MAR05J07M there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit MAR05J07M, held by Admirals Hill Marina in Chelsea, MA, with a status of administratively continued and a discharger class of minor. The facts list 22 under the discharger class figure and 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, as EPA's permit file stood when Velarion loaded it on October 14, 2026.