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.

To report a water leak, call 512-393-8010.

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

  1. City Highlights Essential Services of Parks & Recreation

    The City is celebrating July’s “Parks and Recreation Month,” by highlighting work of park & recreation professionals who are providing services that are vital to a healthy San Marcos. Read on...
  2. Council to Consider Funding COVID-19 Testing with CDBG

    The City Council is seeking comments on a proposal to add a COVID-19 testing program using $105,530 of the newly issued $425,261 CDBG-CV funds. Read on...
  3. July City Hall Calendar

    Please check with the City Clerk's office for official postings. Read on...
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