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. Black Friday Weekend Exit Ramp Closures at Outlet Malls

    The City of San Marcos will close two IH35 exit ramps near the San Marcos Outlet Malls for traffic control during the upcoming Black Friday weekend... Read on...
  2. 200 Volunteers Participated in Successful Fall River Clean Up

    The City’s Neighborhood Enhancement Department, as well as Keep San Marcos Beautiful and the Habitat Conservation Plan, report that almost 200 volunteers picked up trash and recyclable material... Read on...
  3. Utility & Rental Assistance Available to Area Residents

    The City of San Marcos is reminding area residents of utility and rent or mortgage assistance options available through Community Action, Inc. and the City’s utility billing department to help our community navigate these challenging financial times. .. Read on...
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