Clean Water Act discharge permit · NPDES MAR10063V

21 COSLIN DRIVE BUILDING DEMOLITION, Southborough, MA: NPDES MAR10063V discharge permit, effluent exceedances, inspections, penalties

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

21 COSLIN DRIVE BUILDING DEMOLITION, held by Construction Management & Builders, Inc., holds NPDES permit MAR10063V. EPA’s file records it issued December 19, 2025 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 21 COSLIN DRIVE BUILDING DEMOLITION: its NPDES ID, its permit type and status, its dates, its address in Southborough, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR10063V.

Identity

Facility as filed	21 COSLIN DRIVE BUILDING DEMOLITION
Permittee as filed	Construction Management & Builders, Inc.
NPDES ID	MAR10063V
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	December 19, 2025
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Southborough, MA 01581
Subwatershed	Sudbury Reservoir-Sudbury River (HUC 010700050102)

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 MAR10063V.

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 MAR10063V.

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.

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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 MAR10063V there.

Nearby on the register

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

The 21 COSLIN DRIVE BUILDING DEMOLITION permit is one of 52 NPDES permits in the Sudbury Reservoir-Sudbury River subwatershed, and it is among 6 storm water construction permits in Southborough, Massachusetts. Of those 6 Southborough storm water construction permits, 83.3% were issued earlier than this one, and 0.0% of them have a violation on file, a group that includes this permit, which has no pollutants under a numeric limit or effluent exceedances recorded.