Pflugerville Water Hardness & Quality Report (2026)

The City of Pflugerville Utilities provides drinking water to over 65,000 residents in Pflugerville, Texas, located in Travis and Williamson Counties northeast of Austin. Water sources include surface water from Lake Pflugerville, replenished by pumping from the Colorado River originating in the Highland Lakes chain (Buchanan, Inks, LBJ, Marble Falls, Travis), and groundwater from the Edwards Aquifer. City facilities process both surface and groundwater blends before distribution across the municipal service area.

The watershed encompasses the Colorado River basin upstream from Lake Pflugerville, fed by the Texas Hill Country's Highland Lakes, and the Edwards Aquifer recharge zone in Central Texas. Groundwater from the Edwards and Carrizo-Wilcox Aquifers flows through fractured Cretaceous limestone, dolomite, and Eocene sandstone formations, dissolving minerals that shape a hard supply. Surface water from the Colorado River picks up geological signatures from upstream limestone terrains, contributing further to the blended mineralized character influenced by regional aquifer chemistry.

Moderately hard water in Pflugerville promotes limescale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan while increasing energy costs. Showers may leave soap scum, and residents can experience dry skin or hair. Regular descaling with vinegar, cleaning fixtures, and installing drain screens help mitigate effects. A whole-home water softener is recommended for Central Texas households to protect appliances and improve comfort. The City's Annual Drinking Water Quality Report confirms regulatory compliance with EPA standards; third-party testing has noted concerns including hexavalent chromium, atrazine pesticide residues, and disinfection byproducts, though official reports confirm no MCL violations.