East Bridgewater Water Hardness & Quality Report (2026)

East Bridgewater, Massachusetts, in Plymouth County — a Plymouth County town adjacent to Bridgewater and West Bridgewater in southeast Massachusetts — receives its water from the East Bridgewater Water Department, drawing from the Town River watershed or Plymouth-Carver Aquifer (Plymouth County) through the southeast Massachusetts distribution.

The moderately hard 118 mg/L hardness and TDS of 309.6 mg/L are harder than typical southeast Massachusetts supplies — the Plymouth County glaciofluvial outwash aquifer here includes more Buzzards Bay Moraine calcareous till and shell fragment contribution than the pure granite watershed reservoir supplies further north. The East Bridgewater watershed at Plymouth County — Pleistocene Buzzards Bay Moraine (calcareous — primary hardness contributor), Pleistocene glaciofluvial outwash sand (slightly calcareous — secondary contributor), and minor organic-rich Holocene wetland deposits (elevated TDS contributor).

At 118 mg/L, East Bridgewater's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 11.3 ppt warrants a certified reverse osmosis drinking water filter — South Weymouth Naval Air Station (Norfolk County — AFFF) and the southeast Massachusetts Plymouth County industrial corridor contribute significantly to East Bridgewater's very elevated readings.