Clean Water Act discharge permit · NPDES MAR10069A

NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS, Northampton, MA: NPDES MAR10069A discharge permit, effluent exceedances, inspections, penalties

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

NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS, held by SumCo Eco-Contracting, holds NPDES permit MAR10069A. EPA’s file records it issued March 31, 2026 and expiring February 16, 2027.

NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS, Northampton, Massachusetts: Coverage under a general permit MAR10069A, held by SumCo Eco-Contracting; Construction stormwater; Effective; issued March 31, 2026, term to February 16, 2027, by U.S. EPA.

Massachusetts holds 3,320 Construction stormwater coverages of this permit type in EPA’s file; 2,955 were issued before MAR10069A. SumCo Eco-Contracting holds 3 permits in Massachusetts.

Other permits held by SumCo Eco-Contracting

BEL AIR DAM REMOVAL, Pittsfield: MAR1005PJ, issued April 24, 2025
PINNACLE BOGS RESTORATION, Plymouth: MAR10065Y, issued February 4, 2026

Coverages issued nearest MAR10069A

March 27, 2026: LUDLOW CONSTRUCTION: SOUTHBRIDGE, MA - RIVER STREET PHASE II UPGRADES, Southbridge, MAR10068R, held by Ludlow Construction Co.
March 27, 2026: 101 HIGH STREET, WESTWOOD - RESIDENTIAL DEVELOPMENT, Westwood, MAR10068S, held by Supreme Development, Inc.
March 30, 2026: NEW BEDFORD FOSS MARINE TERMINAL LLC, New Bedford, MAR10068T, held by D.W. White Construction, Inc.
March 30, 2026: CHICK-FIL-A - DANVERS, MA, Danvers, MAR10068U, held by Chick-Fil-A
March 31, 2026: PROPOSED SELF-STORAGE FACILITY EXPANSION, Westport, MAR10068X, held by Mackady, LLC
April 3, 2026: CENTRAL ELEMENTARY SCHOOL, East Bridgewater, MAR10068F, held by Gilbane Building Company
April 3, 2026: 138 WASHINGTON STREET CONTRACTOR STORAGE DEVELOPMENT, Foxborough, MAR100692, held by Ryan Lenhart
April 6, 2026: COPPAGE DRIVE BUILDING ADDITION, Worcester, MAR10068A, held by CRE Management, LLC
April 6, 2026: MYOPIA HUNT CLUB - MAINTENANCE FACILITY, South Hamilton, MAR10068G, held by Jonathan Wilber
April 6, 2026: LINCOLN AVENUE COMMERCIAL FORESTRY OPERATION, Winchendon, MAR100694, held by Fitzwilliam LLC

NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS among its neighbors

EPA’s permit file holds 20 discharge permits in the Lower Manhan River subwatershed (HUC 010802010609), MAR10069A among them.

Other permits in the Lower Manhan River subwatershed (HUC 010802010609)

608577-117538 LUDLOW: EASTHAMPTON, MA - UNION STREET (ROUTE 141), Easthampton: MAR10044S, minor permit, permit term to February 16, 2027
ALLEN/OUELLETTE RESIDENTIAL HOME, Florence: MAR1004VB, minor permit, permit term to February 16, 2027
BEACON SOLAR LLC - EASTHAMPTON, MA, Easthampton: MAR1003E6, minor permit, permit term to February 15, 2022
BERRY GLOBAL- EASTHAMPTON, MA, Easthampton: MANOEJ078, minor permit, permit term to April 29, 2026
BURT'S BOG CONSERVATION & LIMITED DEVELOPMENT PROJECT, Northampton: MAR1003Y3, minor permit, permit term to February 16, 2027
EASTHAMPTON CITY OF, Easthampton: MAR041006, not classed
EASTHAMPTON MAPLE ELEMENTARY SCHOOL, Easthampton: MAR1002G4, minor permit, permit term to February 15, 2022
EASTHAMPTON W W T F, Easthampton: MAG590022, minor permit, discharging to CONNECTICUT RIVER AND MANHAN RIVER, permit term to October 31, 2027
EASTHAMPTON W W T P, Easthampton: MA0101478, major permit, discharging to CONNECTICUT RIVER, MANHAN RIVER, permit term to November 30, 2012
EASTHAMPTON W W T P, Easthampton: MAL101478, minor permit, permit term to December 31, 2025

What the register holds for NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS: its NPDES ID, its permit type and status, its dates, its address in Northampton, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR10069A.

Identity

Facility as filed	NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS
Permittee as filed	SumCo Eco-Contracting
NPDES ID	MAR10069A
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	March 31, 2026
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Northampton, MA 01060
Subwatershed	Lower Manhan River (HUC 010802010609)

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 MAR10069A.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR10069A.

Inspections

EPA’s inspection file holds no inspection for NPDES MAR10069A.

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 MAR10069A.

Watch this permit

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Nearby on the register

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

The NASHAWANNUCK BROOK ECOLOGICAL RESTORATION & ACCESS IMPROVEMENTS permit, held by SumCo Eco-Contracting, is one of 21 storm water construction permits in Northampton, Massachusetts, and sits among 20 NPDES permits in the Lower Manhan River subwatershed. Of those 21 Northampton storm water construction permits, 0.0% carry a violation on file, and 90.5% were issued before this one.