Clean Water Act discharge permit · NPDES MAR1006B5

WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT, Ayer, MA: NPDES MAR1006B5 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

WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT, held by Northern Construction LLC, holds NPDES permit MAR1006B5. EPA’s file records it issued May 5, 2026 and expiring February 16, 2027.

WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT, Ayer, Massachusetts: Coverage under a general permit MAR1006B5, held by Northern Construction LLC; Construction stormwater; Effective; issued May 5, 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; 3,033 were issued before MAR1006B5.

Coverages issued nearest MAR1006B5

May 4, 2026: 15-19 STRAWBERRY HILL STREET, DOVER, MA, Dover, MAR1006B2, held by KVC Builders LLC
May 5, 2026: 10 & 20 EXECUTIVE DRIVE, STONEHAM, Stoneham, MAR1005SA, held by Fairfield Residential
May 5, 2026: C133625 DAVID G ROACH: NORTHAMPTON, MA - RT 5 SHARED-USE PATH, Northampton, MAR1006AI, held by David G. Roach & Sons, Inc.
May 5, 2026: IMS 3RD CENTER, Barre, MAR1006B3, held by Bowdoin Construction Corp.
May 5, 2026: A1/B2 ACR PHASE 5, Gardner, MAR1006B4, held by Bluroc, LLC.
May 5, 2026: TAUNTON LANDFILL SOLAR DEVELOPMENT, Taunton, MAR1006B6, held by Roseberry Energy LLC
May 5, 2026: 459 BLACKSMITH SHOP ROAD SOLAR DEVELOPMENT, Falmouth, MAR1006B7, held by Blacksmith Shop Solar LLC
May 5, 2026: WALNUT LANE FARM RECLAMATION PROJECT, Dudley, MAR1006B8, held by James Koebke
May 7, 2026: CHELMSFORD WATER DISTRICT TRANSMISSION MAIN & WATER MAIN REPLACEMENT, Chelmsford, MAR1006B9, held by ADPaolini LLC
May 8, 2026: STONEHAM WETLAND RESTORATION - 149 FRANKLIN ST., Stoneham, MAR1006BA, held by SumCo Eco-Contracting, LLC

WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT among its neighbors

EPA’s permit file holds 67 discharge permits in the Mulpus Brook-Nashua River subwatershed (HUC 010700040205), MAR1006B5 among them.

Other permits in the Mulpus Brook-Nashua River subwatershed (HUC 010700040205)

#608561 LEOMINSTER RT. 12 ROADWAY RECONSTR. & RELATED WORK, Leominster: MAR10044L, minor permit, permit term to February 16, 2027
0 BLIGH STREET, AYER, Ayer: MAR1005Z6, minor permit, permit term to February 16, 2027
0 HIGH STREET & 38 GROTON HARVARD ROAD, Ayer: MAR10062F, minor permit, permit term to February 16, 2027
1325 MASS. AVE., Lunenburg: MAR1004L2, minor permit, permit term to February 16, 2027
250 HOWARD STREET DRIVEWAY PROJECT, Lunenburg: MAR1003I1, minor permit, permit term to February 15, 2022
35 SARATOGA BOULEVARD, Devens: MAR1004FQ, minor permit, permit term to February 16, 2027
4 MACARTHUR AVENUE, Devens: MAR10035K, minor permit, permit term to February 15, 2022
73 BOLTON ROAD - HOUSE CONSTRUCTION, Harvard: MAR1004BD, minor permit, permit term to February 16, 2027
91 GROTON-HARVARD ROAD, AYER, Ayer: MAR1005N9, minor permit, permit term to February 16, 2027
ADAMS CIRCLE ROADWAY RECONSTRUCTION & UTILITY IMPROVEMENTS, Devens: MAR1006AO, minor permit, permit term to February 16, 2027

What the register holds for WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT: its NPDES ID, its permit type and status, its dates, its address in Ayer, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1006B5.

Identity

Facility as filed	WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT
Permittee as filed	Northern Construction LLC
NPDES ID	MAR1006B5
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 5, 2026
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Ayer, MA 01432
Receiving water impaired	303(D) Listed
Subwatershed	Mulpus Brook-Nashua River (HUC 010700040205)

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 MAR1006B5.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR1006B5.

Inspections

EPA’s inspection file holds no inspection for NPDES MAR1006B5.

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 MAR1006B5.

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, MAR1006B5.

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Nearby on the register

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

WEST MAIN STREET BRIDGE OVER NONACOICUS BROOK REPLACEMENT PROJECT is among the 8 storm water construction permits in Ayer, where 0.0% carry a violation on file. Of all 8 storm water construction permits in Ayer, including this permit, 62.5% carry an earlier issue date than this permit. The Mulpus Brook-Nashua River subwatershed holds 67 NPDES permits, counting this permit.