Dickson Water Hardness & Quality Report (2026)

Dickson, Tennessee, in Dickson County — the Dickson County seat adjacent to White Bluff and Burns on the Highland Rim of north-central Tennessee — receives its municipal water from the Dickson Water Division, drawing from the Cumberland River system (Dickson County) through the north-central Tennessee water treatment system.

The very hard 233.5 mg/L hardness and high TDS of 624 mg/L reflect the north-central Tennessee Cumberland River Highland Rim supply's intense calcareous and dolomitic character — consistent with other Highland Rim Tennessee communities (Clarksville: ~220 mg/L; Erin: ~230 mg/L). The Cumberland River at Dickson County drains the Highland Rim — Mississippian St. Louis Limestone (very high purity calcareous — primary hardness contributor at the Highland Rim), Mississippian Warsaw Formation (calcareous), and Ordovician Knox Group dolomite (calcareous-evaporitic — significant TDS contributor). The Mississippian and Ordovician calcareous-dolomitic Highland Rim produces the very hard north-central Tennessee supply.

At 233.5 mg/L with TDS 624, Dickson's water is very hard. A water softener is strongly recommended. Scale builds rapidly on all surfaces, appliance lifespans are significantly shortened, and water heaters require annual descaling without softening. The PFAS level of 7.9 ppt warrants a certified reverse osmosis drinking water filter — the Dickson County Tennessee chemical industrial corridor (Dickson has a significant legacy of groundwater contamination from industrial activity), Fort Campbell (Montgomery County — AFFF, the dominant northwest Tennessee PFAS source), and the Cumberland River PFAS background contribute to Dickson's elevated readings.