Highland Village Water Hardness & Quality Report (2026)

The City of Highland Village Water Company serves approximately 16,593 residents in Highland Village, Texas, Denton County, north of Dallas-Fort Worth. Water is sourced from purchased surface water mainly from Lewisville Lake and self-supplied groundwater from the Trinity Aquifer. The utility is located at 1000 Highland Village Road, Highland Village, TX 75077, with contact at 972-899-5090 or 972-899-5132. Treatment involves disinfection using chloramines. The system is rated as a 'Superior Public Water Supply' by the Texas Commission on Environmental Quality (TCEQ) and complies with annual reporting via its Consumer Confidence Report.

Highland Village's water draws from the Trinity River watershed, with surface supplies from Lewisville Lake—a reservoir formed by Lewisville Dam on the Elm Fork branch—and groundwater from the Trinity Aquifer. This aquifer spans Cretaceous formations like the Glen Rose Limestone and Travis Peak Group, characteristic of North Texas geology. The limestone-dominated strata and calcareous soils in the region dissolve into the water, yielding a hard supply with elevated mineral content from calcium and magnesium.

Scale buildup becomes a significant issue in Highland Village, clogging pipes, reducing water heater efficiency by up to 20-30%, and leaving spots on dishes and fixtures. Appliances like water heaters, dishwashers, washing machines, and coffee makers are most affected, where mineral deposits shorten lifespan and increase energy costs. To mitigate these effects, regular vinegar descaling, installing sediment filters, and flushing water heaters biannually are recommended. A water softener is also recommended, ideally keeping hardness below 7 gpg (120 mg/L) for optimal home use, preventing soap scum and dry skin. The 2026 water quality report notes contaminants exceeding EPA health-based guidelines, and residents can contact the Utility Department at 972-317-2989 for source water assessments.