Water / Wastewater

The Water-Wastewater Utility is owned by the City of San Marcos and operates a high quality wastewater treatment plant and water system rated superior by the State of Texas. Roughly 2/3 of the City's water comes from surface water treated at the City's Water Plant under the operation of the Guadalupe-Blanco River Authority. The utility promotes water conservation and works closely with agencies such as the GBRA, the Edwards Aquifer Authority, the Texas Commission on Environmental Quality and other organizations to develop regional water policies.

Help keep water costs down--report a leak.

Report water waste at 512-393-8360.

The City of San Marcos strives to protect the Edwards Aquifer Recharge Zone which lies under the western portion of the city.

  1. City to Host Town Hall on Mitigation Grant Oct. 29

    Attendees are invited to view exhibits with detailed information about the six potential projects under consideration for the funding. These projects are known as... Read on...
  2. Texas State Conducts Science Outreach in Local Parks

    The goal is to share new science about child development with local families through games and studies run by graduate and undergraduate students of... Read on...
  3. San Marcos Joins Annual “Imagine a Day Without Water”

    Led by the Value of Water Campaign, over one thousand organizations across the country are raising awareness about the importance of water and the crucial need... Read on...
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