Clean Water Act discharge permit · NPDES MAR10058R

PROPOSED APARTMENTS AT POWDER MILL, Acton, MA: NPDES MAR10058R 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

PROPOSED APARTMENTS AT POWDER MILL, held by Powdermill Residential Holdings, LLC., holds NPDES permit MAR10058R. EPA’s file records it issued June 7, 2024 and expiring February 16, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for PROPOSED APARTMENTS AT POWDER MILL: its NPDES ID, its permit type and status, its dates, its address in Acton, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR10058R.

Identity

Facility as filed	PROPOSED APARTMENTS AT POWDER MILL
Permittee as filed	Powdermill Residential Holdings, LLC.
NPDES ID	MAR10058R
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	June 7, 2024
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Acton, MA 01720
Receiving water impaired	303(D) Listed
Subwatershed	Elizabeth Brook-Assabet River (HUC 010700050204)

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 MAR10058R.

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 MAR10058R.

Inspections

EPA’s inspection file holds no inspection for NPDES MAR10058R.

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 MAR10058R.

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 MAR10058R there.

PROPOSED APARTMENTS AT POWDER MILL, Acton, Massachusetts: Coverage under a general permit MAR10058R, held by Powdermill Residential Holdings, LLC.; Construction stormwater; Effective; issued June 7, 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; 1,857 were issued before MAR10058R.

Coverages issued nearest MAR10058R

June 5, 2024: LENOX PUBLIC SAFETY COMPLEX, Lenox, MAR10058L, held by Michael Coody
June 6, 2024: PRATTS JUNCTION LAYDOWN, Sterling, MAR10058M, held by New England Power Company
June 6, 2024: SYNCARPHA ACTON SOLAR PROJECT, Acton, MAR10058O, held by Distributed Energy Infrastructure (DEI)
June 7, 2024: RECONSTRUCTION OF BRIDGE STREET, Beverly, MAR10058P, held by Newport Construction Corporation
June 7, 2024: IMPROVEMENTS TO MARY DENNISON PARK, Framingham, MAR10058Q, held by R.A.D. Sports
June 11, 2024: 20 HOLLY WAY, Canton, MAR10058U, held by Dyer Construction
June 12, 2024: FRANKLIN HEIGHTS, Franklin, MAR10058V, held by Macura Excavating
June 12, 2024: BUTTERS ROW OVER MBTA WILMINGTON, Wilmington, MAR10058W, held by MAS Building and Bridge, Inc.
June 13, 2024: EAST LONGMEADOW HIGH SCHOOL - ENABLING, East Longmeadow, MAR10058X, held by Gagliarducci Construction, Inc.
June 13, 2024: 25 BARREL ROAD - LOT 2, Westminster, MAR10058Y, held by Kevin Smith Companies, Inc

PROPOSED APARTMENTS AT POWDER MILL among its neighbors

EPA’s permit file holds 32 discharge permits in the Elizabeth Brook-Assabet River subwatershed (HUC 010700050204), MAR10058R among them.

Other permits in the Elizabeth Brook-Assabet River subwatershed (HUC 010700050204)

25, 35, 45 & 55 WIDOWS RITES LANE, Sudbury: MAR10044V, minor permit, permit term to February 16, 2027
768 ELM STREET, CONCORD MA, Concord: MAR1005AQ, minor permit, permit term to February 16, 2027
80X AND 1053 MAIN STREET, Concord: MAR1005C1, minor permit, permit term to February 16, 2027
ALTA THOREAU, Concord: MAR1006EI, minor permit, permit term to February 16, 2027
ASSABET RIVER HOMES, Concord: MAR1005IB, minor permit, permit term to February 16, 2027
ASSABET SAND & GRAVEL CO INC, Acton: MAR05DX17, not classed
ASTRO CRANE (340 CODMAN HILL ROAD-BOXBOROUGH), Boxborough: MAR10067O, minor permit, permit term to February 16, 2027
CONCORD MILLRUN, Concord: MAR1002UH, minor permit, permit term to February 15, 2022
ELIZABETH BROOK APARTMENTS, Stow: MAR1004T9, minor permit, permit term to February 16, 2027
GREEN MEADOW ELEMENTARY SCHOOL, Maynard: MAR1005MQ, minor permit, permit term to February 16, 2027

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

The PROPOSED APARTMENTS AT POWDER MILL storm water construction permit is one of 17 such permits on EPA's NPDES register in Acton, Massachusetts. Of those 17 permits, 0.0% have a violation on file, and this permit is among the 32 NPDES permits in the Elizabeth Brook-Assabet River subwatershed. Of all 17 Acton storm water construction permits, 64.7% were issued earlier than this one.