Martinsville Water Hardness & Quality Report (2026)

Martinsville, Virginia — an independent city adjacent to Henry County and Bassett on the Smith River in south-central Virginia — receives its water from the Martinsville Water Division, drawing from Philpott Reservoir or the Smith River (Henry County area) through the south-central Virginia distribution.

The moderately hard 144.5 mg/L hardness and TDS of 314.4 mg/L reflect the south-central Virginia supply's moderate calcareous character — harder than the pure Blue Ridge granite supply would suggest, reflecting the Smith River's passage through the Triassic Dan River Basin calcareous arkose sediments and limited limestone contacts in the south-central Virginia Piedmont-Blue Ridge transition zone. The Smith River-Philpott watershed at Henry County — Precambrian Bassett Gneiss (insoluble — dilutant in upper watershed), Triassic Dan River Basin (slightly calcareous — primary hardness contributor), and Precambrian Grenville basement (insoluble — dilutant).

At 144.5 mg/L, Martinsville'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 7.6 ppt warrants a certified drinking water filter — the Henry County south-central Virginia furniture-industrial corridor and the Dan River basin industrial legacy contribute to Martinsville's elevated readings.