Uxbridge Water Hardness & Quality Report (2026)

Uxbridge, Massachusetts, in Worcester County — a Worcester County town adjacent to Northbridge and Millbury on the Blackstone River in south-central Massachusetts — receives its water from the Uxbridge Water Department, drawing from Goat Hill Reservoir (Worcester County) through the south-central Massachusetts distribution.

The very soft 28 mg/L hardness and very low TDS of 45.2 mg/L reflect the south-central Massachusetts Worcester County Blackstone River supply's very soft granite character — the Precambrian Milford Granite and Cambrian Uxbridge Schist contribute insoluble dilution with minimal calcareous contact, among the softest water in the Worcester County watershed (compare Charlton MA: 121/322 harder from the upper Blackstone valley calcareous contact; Uxbridge far softer from the insoluble Uxbridge Schist at the river source). The Goat Hill reservoir at Uxbridge — Precambrian Milford Granite (insoluble — primary dilutant), Cambrian Uxbridge Schist (insoluble — secondary dilutant), and Pleistocene glacial outwash (slightly calcareous — trace hardness).

At 28 mg/L, Uxbridge's water is very soft — scale forms very slowly in appliances, dishwashers remain efficient, and no softening is needed. Annual descaling is appropriate. The PFAS level of 5.1 ppt warrants a certified drinking water filter — the Worcester County south-central Massachusetts industrial corridor contribute to Uxbridge's elevated readings.