
The Enabling Act BWSC was established in 1977 pursuant to a "home rule" petition enacted by the Massachusetts State Legislature as the Boston Water and Sewer Reorganization Act of 1977, Chapter 436 of the Acts of 1977 ("the Enabling Act"), on July 18, 1977. In accordance with the Enabling Act, ownership of the wastewater collection and stormwater drainage system and the water distribution system was transferred from the City of Boston's Department of Public Works (DPW) to BWSC in August of 1977. The Enabling Act also provides for the establishment of a three-member Board of Commissioners.
BWSC is required by the Enabling Act to develop a three-year Capital Improvement Program (CIP) annually. In keeping with this mandate BWSC has substantially rehabilitated and improved the systems.
source: http://www.bwsc.org/ABOUT_BWSC/organization.asp