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 Regional Animal Shelter ‘Pets of the Week’

    This gorgeous boy is as sweet as can be! Denny loves leisurely strolls and hanging out with his favorite buddies. He has great leash skills, prefers the scenic route... Read on...
  2. Upcoming Library Events: Jan. 16 – Jan. 22

    Dr. Martin Luther King, Jr. Celebration, Growing Up Wild, IRS Hiring Event, Intro to Digital Marketing for Small Businesses, and much more at the library this week! Read on...
  3. City Offices Closed for Martin Luther King Jr. Holiday

    City of San Marcos offices, including City Hall, Public Library, Activity Center, and the Municipal Court, will be closed Monday, Jan. 20, to honor Martin Luther King, Jr. Read on...
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