AWWA ACE93068

Within the 1,500 square miles that make up the Edwards Aquifer region, municipal areas are pitted against rural, urban development clashes with environmental concerns, and agricultural and industrial needs are weighed against the economic impact of recreation. The Edwards Aquifer is unique in that it recharges dramatically after rainfall. However, rainfall is not certain. Complicating the problem is the perceived need for continued growth. Although water use for the city of San Antonio compares favorably with other cities of similar size, the greatest urban water demand occurs in the summer, at the same time that agricultural irrigation demand peaks. The city of San Antonio is considering the reuse to help stem overdrafting of the Edwards Aquifer. Reclaimed water would be used not only for irrigation but also to augment flows of the San Antonio River. If the flow drops, nearby springs cease to flow; in the past, aquifer water has been used to augment low streamflow.