Lakeway Water Hardness & Quality Report (2026)

Lakeway Municipal Utility District supplies drinking water to the Lakeway area in Travis County, Texas. Their entire water supply comes from Lake Travis, a large reservoir on the Colorado River. The water undergoes conventional treatment processes, including pre-oxidation with chlorine and disinfection using either chloramines or chlorine, at their treatment facilities. For inquiries, the utility can be reached at 512-261-6222 or the emergency line at 512-261-2800. Their mailing address is 1097 Lohmans Crossing Rd, Lakeway, TX 78734.

The Lake Travis watershed is situated in the Texas Hill Country, within the Colorado River basin. This area is characterized by limestone-rich terrains, specifically Cretaceous-age carbonate formations like the Glen Rose Limestone and the Edwards Group. These geological features are prevalent in the uplands and naturally contribute dissolved minerals, leading to the region's characteristically hard water supply. While the primary source is the reservoir, regional groundwater from the Trinity Aquifer might also influence the inflows into the lake.

Homeowners in Lakeway often contend with the effects of very hard water, which causes scale buildup in pipes, diminishing their efficiency over time. This hardness also significantly shortens the lifespan of appliances like water heaters, dishwashers, and washing machines, potentially by 30-50%. You'll notice white deposits on faucets and showerheads, necessitating frequent cleaning or replacement of fixtures. Installing a water softener is highly recommended to combat scaling, protect your home's plumbing, and improve the lathering of soaps and detergents. Regular descaling of appliances with vinegar can also help manage the mineral buildup.