Clean Water Act discharge permit · NPDES MAR1004OC

CANAL PARK SITE IMPROVEMENTS PROJECT, Cambridge, MA: NPDES MAR1004OC discharge permit, effluent exceedances, inspections, penalties

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

CANAL PARK SITE IMPROVEMENTS PROJECT, held by The Whiting-Turner Contracting Company, holds NPDES permit MAR1004OC. EPA’s file records it issued June 16, 2023 and expiring February 16, 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 CANAL PARK SITE IMPROVEMENTS PROJECT: its NPDES ID, its permit type and status, its dates, its address in Cambridge, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1004OC.

Identity

Facility as filed	CANAL PARK SITE IMPROVEMENTS PROJECT
Permittee as filed	The Whiting-Turner Contracting Company
NPDES ID	MAR1004OC
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	June 16, 2023
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Cambridge, MA 02141
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 MAR1004OC.

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 MAR1004OC.

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, MAR1004OC.

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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 MAR1004OC there.

Nearby on the register

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

The CANAL PARK SITE IMPROVEMENTS PROJECT permit, held by The Whiting-Turner Contracting Company, is one of 42 storm water construction permits on EPA's NPDES register in Cambridge, Massachusetts, this one included. Of all 41 storm water construction permits in Cambridge, this one included, 46.3% were issued earlier than this permit. The permit records no pollutant under a numeric limit and no effluent exceedance, and 0.0% of those 42 Cambridge storm water construction permits have a violation on file.