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. San Marcos Convention & Visitor Bureau Wins Marketing Awards

    The San Marcos Convention & Visitor Bureau received two Idea Fair awards from the Texas Association of Convention and Visitor Bureaus during TACVB’s Annual Conference in Sugar Land this August. Read on...
  2. San Marcos Public Library News

    Hill Country Trees Thursday, Sept. 27 6 - 7 p.m. Hays County Master Gardener Delbert Bassett will present an interactive lecture at the San Marcos Public Library on the predominate trees in Hays County Read on...
  3. San Marcos Gearing up for National Night Out

    San Marcos residents are invited to participate in the 2018 National Night Out (NNO) on Tuesday, Oct. 2, by visiting with neighbors, police officers, EMS personnel, firefighters, and City officials to advance crime prevention in the community. Read on...
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