Water Main Flushing in South Boston. Please be advised BWSC will be conducting water main flushing in South Boston. Starting October 11th, 2020 through November 18, 2020 between the hours of 10pm-6am. This process may cause discolored water and/ or a reduction in water pressure. Discoloration of water is temporary and not harmful. We recommend running your cold tap water for a few minutes until pressure is restored, and water runs clear. If conditions persist, please contact BWSC's 24 Hour Service at (617) 989-7000. BWSC appreciates your patience as we work to improve the quality of drinking water we will provide to the residents and businesses of Boston.