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Clean Water Act discharge permit · NPDES MAR10052Y

9 OTIS STREET, Westborough, MA: NPDES MAR10052Y discharge permit, effluent exceedances, inspections, penalties

9 OTIS STREET, held by Macura Excavating, holds NPDES permit MAR10052Y. EPA’s file records it issued March 13, 2024 and expiring February 16, 2027.

9 OTIS STREET, Westborough, Massachusetts: Coverage under a general permit MAR10052Y, held by Macura Excavating; Construction stormwater; Effective; issued March 13, 2024, term to February 16, 2027, by U.S. EPA.

Massachusetts holds 3,320 Construction stormwater coverages of this permit type in EPA’s file; 1,699 were issued before MAR10052Y. Macura Excavating holds 5 permits in Massachusetts.

Other permits held by Macura Excavating

Coverages issued nearest MAR10052Y

9 OTIS STREET among its neighbors

EPA’s permit file holds 59 discharge permits in the Headwaters Assabet River subwatershed (HUC 010700050201), MAR10052Y among them.

Other permits in the Headwaters Assabet River subwatershed (HUC 010700050201)

What the register holds for 9 OTIS STREET: its NPDES ID, its permit type and status, its dates, its address in Westborough, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR10052Y.

Identity

Facility as filed9 OTIS STREET
Permittee as filedMacura Excavating
NPDES IDMAR10052Y
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMarch 13, 2024
Expiration dateFebruary 16, 2027
Issuing agencyU.S. EPA
AddressWestborough, MA 01581
Receiving water impaired303(D) Listed
SubwatershedHeadwaters Assabet River (HUC 010700050201)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MAR10052Y.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR10052Y.

Inspections

EPA’s inspection file holds no inspection for NPDES MAR10052Y.

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 MAR10052Y.

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, MAR10052Y.

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Nearby on the register

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

What this page shows

The permit filed as 9 OTIS STREET, held by Macura Excavating in Westborough, Massachusetts, is one of 16 storm water construction permits in that city on EPA's NPDES register, and the percent of those 16 with a violation on file is 0.0%. Of all 16 storm water construction permits in Westborough, including this one, 56.3% were issued earlier than this permit's March 13, 2024 issue date. The permit also falls among 59 NPDES permits in the Headwaters Assabet River subwatershed, this one included, and it has zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.