Wolcott Water Hardness & Quality Report (2026)

Wolcott, Connecticut, in the Naugatuck Valley Planning Region — a Naugatuck Valley town adjacent to Waterbury and Southington in central Connecticut — receives its municipal water from the Wolcott Water Division, drawing from local reservoir sources (Wolcott watershed, Naugatuck Valley) through the Wolcott treatment system.

The soft 43 mg/L hardness and low TDS of 80.5 mg/L reflect central Connecticut's crystalline Highland watershed character, consistent with the generally soft southern New England water supplies. The Wolcott watershed drains the Connecticut Highlands — Precambrian Totoket Granite and gneiss (insoluble), Carboniferous New Haven Arkose (primarily insoluble quartz-feldspar sand), and Triassic Hartford Basin minor sediments (less calcareous than the New Jersey Newark Basin). The predominantly insoluble crystalline and arkose geology produces the soft central Connecticut supply.

At 43 mg/L, Wolcott's water is soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 7.0 ppt warrants a certified drinking water filter — the Naugatuck Valley historic industrial corridor (the Brass Valley — Waterbury, Naugatuck, Ansonia — one of the most industrially contaminated river valleys in New England, with significant PFAS legacy from the metals industry), and the central Connecticut PFAS background contribute to Wolcott's elevated readings.