Source Water Infrastructure and Properties

Cambridge water is supplied from the Stony Brook Watershed, nested within the Charles River Basin, in the towns of Lincoln, Lexington, Weston, and the City of Waltham. The water makes its way through tributaries and a series of reservoirs to its final destination in Fresh Pond Reservoir. To manage this process, the City of Cambridge owns extensive infrastructure and properties throughout the watershed that are crucial to supplying our daily water demand to Fresh Pond Reservoir. To learn more about the City of Cambridge's Infrastructure and Properties, follow the links below.

Watershed Infrastructure

Details the Hobbs Brook, Stony Brook, and Fresh Pond Reservoirs, along with additional infrastructure that is crucial to making these reservoirs work properly and efficiently.

Watershed Properties

Details the City's watershed protection lands located in Lexington, Lincoln, Waltham, and Weston. For information on Fresh Pond Reservation in Cambridge, click here.

A map of the Cambridge source water supply system. Includes the watershed outline, reservoirs and tributaries, Cambridge-owned properties, and the aqueduct carrying water from Stony Brook Reservoir to Fresh Pond Reservoir.

Location of the Cambridge watershed in Massachusetts.