Bristol Water Hardness & Quality Report (2026)

Bristol, Virginia — an independent City of Bristol adjacent to Bristol, Tennessee on the Virginia-Tennessee border in the Tennessee Valley and Ridge, a historic twin-city community — receives its municipal water from Bristol Virginia Utilities, drawing from Beaver Creek Reservoir (Washington County, Virginia) through the Bristol treatment plant.

The moderately hard 161.5 mg/L hardness and TDS of 382.1 mg/L reflect the southwest Virginia Valley and Ridge carbonate drainage. Beaver Creek drains the Virginia Valley and Ridge — Ordovician Knox Dolomite (the dominant Valley and Ridge carbonate platform — high dissolved carbonate), Cambrian Elbrook Formation dolomite (primary calcareous unit), and the Ordovician Kingsport Formation (dolomite). The carbonate Valley and Ridge stratigraphy produces moderately hard water throughout the southwest Virginia supply corridor.

At 161.5 mg/L, Bristol's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and water heaters should be descaled annually. Quarterly descaling is appropriate. The PFAS level of 8.6 ppt warrants a certified drinking water filter — the Holston Army Ammunition Plant (Kingsport, Tennessee — just downstream on the Holston River corridor, one of the most significant AFFF/PFAS legacy sites in the southern Appalachians), Bristol Motor Speedway industrial PFAS, and the southwest Virginia-Tennessee PFAS complex produce Bristol's elevated readings.