Clean Water Act discharge permit · NPDES MAR1004MT

ARSENAL STREET CORRIDOR WOOLEY AVENUE TO ARSENAL COURT, Watertown, MA: NPDES MAR1004MT discharge permit, effluent exceedances, inspections, penalties

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

ARSENAL STREET CORRIDOR WOOLEY AVENUE TO ARSENAL COURT, held by Newport Construction Corporation, holds NPDES permit MAR1004MT. EPA’s file records it issued May 24, 2023 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 ARSENAL STREET CORRIDOR WOOLEY AVENUE TO ARSENAL COURT: its NPDES ID, its permit type and status, its dates, its address in Watertown, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1004MT.

Identity

Facility as filed	ARSENAL STREET CORRIDOR WOOLEY AVENUE TO ARSENAL COURT
Permittee as filed	Newport Construction Corporation
NPDES ID	MAR1004MT
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	May 24, 2023
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Watertown, MA 02472
Receiving water impaired	303(D) Listed
Subwatershed	Charles River-Frontal Boston Harbor (HUC 010900010704)

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 MAR1004MT.

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 MAR1004MT.

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, MAR1004MT.

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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 MAR1004MT there.

Nearby on the register

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

The ARSENAL STREET CORRIDOR WOOLEY AVENUE TO ARSENAL COURT permit is one of 20 storm water construction permits in Watertown, Massachusetts, on EPA's NPDES register, and 50.0% of those 20 were issued earlier than it. Among the 384 NPDES permits in the Charles River-Frontal Boston Harbor subwatershed, this storm water construction permit is one of the listed peers, and 0.0% of the 20 Watertown storm water construction permits have a violation on file, the same as this permit, which has none of its pollutants recorded under a numeric limit or with an effluent exceedance.