Home | Boston Water and Sewer Commission BWSC April 2026 Commission Meeting April 23, 2026 BWSC Bonded Contractors Water Main Flushing East Boston Water Billing Rates Look up a Project Report a Problem or Emergency Lead Sampling Schools & Childcare Facilities This program is for Schools & Childcare Facilities Only. Stormwater What is stormwater, and why does it cause pollution? Lead & Your Water Permits & Forms Careers Lead Sampling Schools & Childcare Facilities This program is for Schools & Childcare Facilities Only. Stormwater What is stormwater, and why does it cause pollution? Featured Projects South Boston Sewer Separation Project The project involves separating the combined sewer system in South Boston. Project Details East Boston Sewer Separation Project BWSC's separation of the existing sanitary and storm drainage sewer systems in East Boston continues with Phase IV, focused on the Eagle Hill and Maverick Square neighborhoods. Project Details New Boston Main Interceptor Rehabilitation Project The New Boston Main Interceptor (NBMI) is a critical part of the BWSC’s wastewater system, The overall goal of this project is to rehabilitate four structures and slip line Project Details Charlestown Water, Sewer, and Drain Replacement Project Typical Water Main Trench Project Details Upcoming Events Water Quality Report 07-01-25 Location TBA View Event Details Water Main Flushing East Boston 04-13-26 Location TBA View Event Details Drinking Water Week 2026 04-13-26 Location TBA View Event Details