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Clean Water Act discharge permit · NPDES MAR1004AE

SAFE HARBOR MARINA PLYMOUTH, Plymouth, MA: NPDES MAR1004AE discharge permit, effluent exceedances, inspections, penalties

SAFE HARBOR MARINA PLYMOUTH, held by SHM Plymouth, holds NPDES permit MAR1004AE. EPA’s file records it issued October 11, 2022 and expiring February 16, 2027. 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.

What the register holds for SAFE HARBOR MARINA PLYMOUTH: its NPDES ID, its permit type and status, its dates, its address in Plymouth, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1004AE.

Identity

Facility as filedSAFE HARBOR MARINA PLYMOUTH
Permittee as filedSHM Plymouth
NPDES IDMAR1004AE
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 11, 2022
Expiration dateFebruary 16, 2027
Issuing agencyU.S. EPA
AddressPlymouth, MA 02360

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MAR1004AE.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR1004AE.

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, MAR1004AE.

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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 MAR1004AE there.

Nearby on the register

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

What this page shows

SAFE HARBOR MARINA PLYMOUTH is one of 24 storm water construction permits on EPA's NPDES register in Plymouth, this one included, and 21.7% of the 23 storm water construction permits in Plymouth (this one included) carry an earlier issue date than this one. The permit records no violation on file, and 0.0% of those 24 Plymouth storm water construction permits have one.