Silver Lake is a 640-acre (2.6 km²) lake in Pembroke, Kingston, and Plympton, Massachusetts, south of Route 27 and east of Route 36. The Pembroke/Plympton town line is entirely within the lake, and a portion of the western shoreline of the lake is the town line with Halifax. The lake is the principal water supply for the City of Brockton, whose water treatment plant is on Route 36 in Halifax. The inflow of the pond is Tubbs Meadow Brook, and the pond is the headwaters of the Jones River. Occasionally water is diverted into Silver Lake from Monponsett Pond in Halifax and Furnace Pond in Pembroke (through Tubbs Meadow Brook) whenever there is a water shortage.