MWRA collect water in the Quabbin Reservoir, connected by a 65 miles (105 km) tunnel to Boston, and enters BWSC distribution system at 27 metered sites.
When full, the Quabbin Reservoir holds 412 billion US gallons (1.56×109 m3), making it one of the largest man-made public water supplies in the country.
In the 40 years since its creation, BWSC has relaid or relined over 300 miles (480 km) of aging, and claims to have reduced the amount of water being lost through system leaks by 50 million US gallons (190,000 m3) per day.
It has also, in conjunction with the MWRA, eliminated 81 miles (130 km) of combined sewer overflows to Boston Harbor.
Through Solar Boston, the City will: (a) Develop a strategy for the installation of solar technology throughout Boston including mapping feasible locations, preparing a project-labor agreement, and planning the citywide bulk purchase, financing, and installation of solar technology, (b) Work with local organizations to maximize Boston 's participation in state incentive programs and innovative financing initiatives (c) Create a successor non-profit organization to implement the long-term goals of the partnership, (d) Solar Boston partners include the U.S. Department of Energy, the Massachusetts Technology Collaborative, local utilities and unions, an anonymous foundation, and a broad range of local, regional, and national clean energy stakeholders including the US Department of Energy.