Note: This story was originally published in our Sept. 13, 2021 print edition.

The Alliance Regional Water Authority is constructing a 568-acre water treatment plant set to begin operating in summer 2023.

The $55 million plant will serve 19 million gallons of water per day to 250,000 residents throughout San Marcos, Buda, Kyle and the Canyon Regional Water Authority, according to a press release. In partnership with the Guadalupe-Blanco River Authority, the plant will also serve New Braunfels and Goforth Special Utility District, according to the release.

The site, located east of Lockhart in Rosanky, will have 11 pump stations and an aboveground storage tank. Other parts of the project include 85 miles of pipeline and four wells.

Even though each part of the project will be completed separately, the treatment plant is set to serve a portion of the recipients by 2023, and it is meant to serve the ever growing population between Austin and San Antonio, Alliance Water Executive Director Graham Moore said.


“Our water treatment plant facility and other projects we have tied in with that are intended to be a new source of water supply as these communities continue to grow,” Moore said.

The region has an adequate supply of water that meets the demand it is seeing now and in the coming years, Moore said. These areas primarily rely on Edwards Aquifer water, a local groundwater source, and surface water that originates out of Canyon Lake. However, it will not be enough to keep up with growing demand within the next decade, Moore said.

The water treatment plant’s location is intended to source water from a different groundwater source known as the Carrizo-Wilcox Aquifer, Moore said.

“Our well fields are there, so we wanted to put the treatment plant in the well field so that we could pump treated potable water across to all of our customers,” Moore said.