SAWS operates one of the largest recycled water systems in Texas, serving the San Antonio River Walk base flow and major Bexar County industrial customers. Connections, signage, and cross-connection controls are governed by SAWS service rules.
San Antonio Water System pioneered large-scale water reuse, returning highly treated effluent to the San Antonio River for River Walk base flow and supplying purple-pipe customers including golf courses, industrial sites, and major institutions. Customers connecting to the recycled main must follow SAWS reclaimed water service rules, install backflow prevention, and label all valves and outlets. Drinking water cross-connections are strictly prohibited. The reuse system reduces draw on the Edwards Aquifer and stretches the supply for a fast-growing county. Most single-family residents in unincorporated Bexar County do not have access to purple pipe service.
Cross-connecting reclaimed water to potable plumbing is a serious health violation; SAWS may shut service, levy charges, and refer cases to TCEQ.
See how Universal City's recycled water rules rules stack up against other locations.
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