San Antonio Water System provides water and wastewater services to more than 1.8 million consumers in the San Antonio region. ... SAWS is the national leader in water innovation with the largest direct recycled system in the country, the largest groundwater based Aquifer Storage & Recovery facility in the nation and was the first in the U.S. in converting methane gas to energy, making this wonderful city…Waterful. For more information, visit www.saws.org. read more