The City of San Marcos Water/Wastewater Utilities is a city department that promotes water conservation, as well as administers backflow prevention programs. The department conducts water surveys that measure toilet flush volumes and shower and faucet flow rates. The City of San Marcos Water/Wastewater Utilities also organizes several classroom presentations and activities that increase water awareness among school students. In addition, the department operates and maintains a wastewater treatment plant. The City of San Marcos Water/Wastewater Utilities additionally conducts presentations for groups and organizations, as well as organizes fairs and trade shows on water conservation topics. The department maintains a location in San Marcos, Texas.