Clean Water Act discharge permit · NPDES MAR10045J

CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION, Waltham, MA: NPDES MAR10045J 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

CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION, held by Baltazar Contractors, Inc., holds NPDES permit MAR10045J. EPA’s file records it issued July 26, 2022 and expiring February 16, 2027.

CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION, Waltham, Massachusetts: Coverage under a general permit MAR10045J, held by Baltazar Contractors, Inc.; Construction stormwater; Effective; issued July 26, 2022, term to February 16, 2027, by U.S. EPA.

Massachusetts holds 3,320 Construction stormwater coverages of this permit type in EPA’s file; 881 were issued before MAR10045J. Baltazar Contractors, Inc. holds 10 permits in Massachusetts.

Other permits held by Baltazar Contractors, Inc.

ROADWAY RECONSTRUCTION AND RELATED WORK ON SECTIONS OF ROUTE 27, Natick: MAR1002UX, issued September 28, 2020
BALTAZAR CONTRACTORS, INC: FRAMINGHAM, MA - EDGELL ROAD AT EDMANDS RD/WATER ST, Framingham: MAR1002VW, issued October 7, 2020
C112228 BALTAZAR: GREAT BARRINGTON, MA - MAIN STREET AT MAPLE AVENUE, Great Barrington: MAR100314, issued December 25, 2020
C115834 BALTAZAR: WINCHENDON, MA - ROADWAY RECONSTRUCTION ROUTE 202, Winchendon: MAR1003LX, issued November 9, 2021
C116287 BALTAZAR: HADLEY, MA - RUSSELL ST (ROUTE 9), Hadley: MAR1003PS, issued February 3, 2022
608813-123873 BALTAZAR: LANESBOROUGH, MA - RESURFACING ON ROUTE 7, Lanesborough: MAR1004Y9, issued December 15, 2023
CONSTRUCTION OF ROUTE I-495 / ROUTE 1A RAMPS, Wrentham: MAR1005I6, issued December 11, 2024
608717-127958 BALTAZAR CONTRACTORS INC: SPRINGFIELD,MA-RECONSTRUCTION OF THE X, Springfield: MAR1005L8, issued February 20, 2025
BALTAZAR CONTRACTORS, INC: BELCHERTOWN, MA - SPORTSHAVEN IMPROVEMENT PROJECT, Belchertown: MAR1005WO, issued August 25, 2025

Coverages issued nearest MAR10045J

July 21, 2022: 200 MAIN STREET, Cambridge, MAR100459, held by John Moriarty & Associates
July 21, 2022: COAL MINE BROOK PARK, Worcester, MAR10045A, held by JAM Corporation
July 22, 2022: 772 & 784 COUNTY STREET, Taunton, MAR10045B, held by Shoreline Development
July 22, 2022: MWRA PROJECT 7485: FIELD INVESTIGATIONS, Malden, MAR10045D, held by Overland Engineering LLC
July 25, 2022: BOULEVARD SUBSTATION REBUILD PROJECT, Lowell, MAR10045F, held by Massachusetts Electric Company
July 26, 2022: SEWELL STREET, Groveland, MAR10045K, held by Bill Daley
July 27, 2022: SUNNYSIDE LANE, Concord, MAR10045L, held by AWMW, LLC.
July 27, 2022: THURSTON STREET, Wrentham, MAR10045M, held by Brian Kidder
July 27, 2022: 585 KENDALL, Combridge, MAR10045N, held by Suffolk Construction Company, Inc.
July 27, 2022: SPRINGFIELD COUNTRY CLUB - MAINTENANCE BUILDING REPLACEMENT, West Springfield, MAR10045O, held by VAAS Builders, LLC

CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION among its neighbors

EPA’s permit file holds 100 discharge permits in the Beaver Brook-Charles River subwatershed (HUC 010900010703), MAR10045J among them.

Other permits in the Beaver Brook-Charles River subwatershed (HUC 010900010703)

100 WEST STREET, Needham: MAR10066S, minor permit, permit term to February 16, 2027
101 HIGH STREET, WESTWOOD - RESIDENTIAL DEVELOPMENT, Westwood: MAR10068S, minor permit, permit term to February 16, 2027
1208D VFW PARKWAY, Ma: MAR1003UY, minor permit, permit term to February 16, 2027
151 RIVERMOOR ST, West Roxbury: MAR1005YY, minor permit, permit term to February 16, 2027
160 GOULD STREET OFFICE BUILDING, Needham: MA0029921, not classed
20 SEYON, Watertown: MAR1005WM, minor permit, permit term to February 16, 2027
200 TRAPELO RD, PHASE 2, IMPROVEMENTS, Waltham: MAR10065K, minor permit, permit term to February 16, 2027
214 LOWDER STREET, Dedham: MAR1003R0, minor permit, permit term to February 15, 2022
220-234 CALVARY STREET, Waltham: MAG912128, minor permit, permit term to August 1, 2027
33 BULLARD ROAD, WESTON PROJECT, Weston: MAR1005RS, minor permit, permit term to February 16, 2027

What the register holds for CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION: its NPDES ID, its permit type and status, its dates, its address in Waltham, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR10045J.

Identity

Facility as filed	CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION
Permittee as filed	Baltazar Contractors, Inc.
NPDES ID	MAR10045J
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	July 26, 2022
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Waltham, MA 02452
Subwatershed	Beaver Brook-Charles River (HUC 010900010703)

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 MAR10045J.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR10045J.

Inspections

EPA’s inspection file holds no inspection for NPDES MAR10045J.

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 MAR10045J.

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Nearby on the register

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

Of the 16 storm water construction permits in Waltham, 0.0% have a violation on file. CONSTRUCTION OF WATER MAIN - SECTION 101 WALTHAM PIPELINE EXTENSION is among 16 storm water construction permits that EPA's NPDES register lists for Waltham, and 25.0% of all 16, including this permit, were issued before this permit.