Clean Water Act discharge permit · NPDES MAR1000DZ

ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE, Somerville, MA: NPDES MAR1000DZ discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE, held by Cranshaw Construction, holds NPDES permit MAR1000DZ. EPA’s file records it issued May 24, 2017 and expiring February 15, 2022.

ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE, Somerville, Massachusetts: Coverage under a general permit MAR1000DZ, held by Cranshaw Construction; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued May 24, 2017, term to February 15, 2022, by U.S. EPA.

Massachusetts holds 3,320 Construction stormwater coverages of this permit type in EPA’s file; 14 were issued before MAR1000DZ. Cranshaw Construction holds 10 permits in Massachusetts.

Other permits held by Cranshaw Construction

NORTHLAND NEWTON DEVELOPMENT, Newton: MAG912062, issued August 2, 2022
UNION SQUARE PARCEL D2, Somerville: MAR10032A, issued January 25, 2021
99 COOLIDGE AVE, Watertown: MAR1003DO, issued July 6, 2021
PHASE 1 - TABLE TALK LOFTS, Worcester: MAR1004AB, issued October 10, 2022
ELM PLACE, Swampscott: MAR1004FM, issued January 11, 2023
586 MANLEY STREET WAREHOUSE DEVELOPMENT, West Bridgewater: MAR1004KK, issued April 10, 2023
COOLIDGE CORNER HOTEL & RESIDENCE, Brookline: MAR10050X, issued February 9, 2024
LOT 2 - MILL BUILDING AND STORAGE, Tewksbury: MAR10058A, issued May 29, 2024
ALLSTON POST (25-39 HARVARD AVE, ALLSTON MA), Allston: MAR1005PM, issued April 25, 2025

Coverages issued nearest MAR1000DZ

May 9, 2017: ANDOVER WOODS, Andover, MAR10008W, held by Pulte Homes of New England, LLC
May 18, 2017: MERRIMACK COLLEGE NORTH CAMPUS, North Andover, MAR1000C0, held by Pro Con, Inc.
May 19, 2017: BRIDGE REPLACEMENT VFW HIGHWAY OVER BEAVER BROOK, Lowell, MAR1000CK, held by MASSACHUSETTS DEPARTMENT OF TRANSPORTATION
May 22, 2017: RESURFACING AND RELATED WORK ALONG A SECTION OF ROUTE 68, Templeton, MAR1000D6, held by P.J. Keating Co.
May 22, 2017: GARDEN OF EDEN, Wilmington, MAR1000DB, held by Duffer Realty Trust
May 25, 2017: GENERAL WALKER ESTATES, Burlington, MAR1000EL, held by Dana Sacca
May 29, 2017: FIREWORKS IRA, Hanover, MAR1000H6, held by Tetra Tech
May 30, 2017: LAKEVIEW ESTATES, Bellingham, MAR1000J1, held by Bellingham Residential Realty, LLC
June 6, 2017: FORMER UNIROYAL FACILITY, Chicopee, MAR1000LL, held by City of Chicopee Department of Planning and Development
June 13, 2017: YORKSHIRE ESTATES DEFINITIVE RESIDENTIAL SUBDIVISION, Canton, MAR1000MT, held by Page Building Construction Company

ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE among its neighbors

EPA’s permit file holds 157 discharge permits in the Mystic River-Frontal Boston Harbor subwatershed (HUC 010900010502), MAR1000DZ among them.

Other permits in the Mystic River-Frontal Boston Harbor subwatershed (HUC 010900010502)

0 SOUTH FARM ROAD, Everett: MAG912155, minor permit, permit term to August 1, 2027
10 & 20 EXECUTIVE DRIVE, STONEHAM, Stoneham: MAR1005SA, minor permit, permit term to February 16, 2027
100, 125, 150 CAMBRIDGEPARK DRIVE, Cambridge: MAR1002G8, minor permit, permit term to February 15, 2022
101 SMITH PLACE, Cambridge: MAR10037T, minor permit, permit term to February 15, 2022
1165R MASS AVE RESIDENTIAL DEVELOPMENT, Arlington: MAR1003QJ, minor permit, permit term to February 15, 2022
128 SPRING STREET, Everett: MAR1005EI, minor permit, permit term to February 16, 2027
142 MYSTIC AVENUE MEDFORD MA, Medford: MAR1004RK, minor permit, permit term to February 16, 2027
212 BEACHAM STREET EVERETT, MA, Everett: MAR1004Y1, minor permit, permit term to February 16, 2027
299 BROADWAY, Somerville: MAR10063U, minor permit, permit term to February 16, 2027
35 GARVEY STREET, EVERETT MA 02149, Everett: MAR1003QR, minor permit, permit term to February 15, 2022

What the register holds for ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE: its NPDES ID, its permit type and status, its dates, its address in Somerville, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1000DZ.

Identity

Facility as filed	ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE
Permittee as filed	Cranshaw Construction
NPDES ID	MAR1000DZ
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	Construction stormwater
Issued	May 24, 2017
Expiration date	February 15, 2022
Issuing agency	U.S. EPA
Address	Somerville, MA 02145
Receiving water impaired	303(D) Listed
Subwatershed	Mystic River-Frontal Boston Harbor (HUC 010900010502)

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 MAR1000DZ.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR1000DZ.

Inspections

EPA’s inspection file holds no inspection for NPDES MAR1000DZ.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MAR1000DZ.

Watch this permit

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Nearby on the register

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

The ASSEMBLY SQUARE (PHASE 2 ROADWAY AND STREETSCAPE permit, held by Cranshaw Construction, is one of 12 storm water construction permits in Somerville, Massachusetts, and sits among 157 NPDES permits in the Mystic River-Frontal Boston Harbor subwatershed. Of the 12 Somerville storm water construction permits, 0.0% have a violation on file, and this permit carries no pollutants under a numeric limit and no effluent exceedances.