AWWA ACE63236

This slide presentation outlines a project by the Brazos River Authority to blend water sources to increase water supply to meet the population growth in the Brazos River area of Texas. Future water supply needs are outlined, along with planning activities specific to groundwater and conjunctive use, with the outcome being the Williamson County Water Supply Plan. Goals of the plan include: develop a regional water supply system to meet current and long-term water needs for Williamson County; and, develop a "preferred" method to procure groundwater as a future component of the Authority's water supply system. Phase 1 summary included: maximizing use of existing infrastructure and water supply to defer early water needs; includes utilization of additional available water from Lake Stillhouse Hollow; new authority WWCRWTP; expansion of authority EWCRWTP (formerly Taylor WTP); and, meets needs through next 20 to 30 years. Groundwater and conjunctive use was the primary focus of this study and involved: Carrizo-Wilcox Aquifer Groundwater; Supplement Lake Granger Supply; resulted in ability to withdraw additional Lake Granger water = CONJUNCTIVE USE. Phase 2 summary included: Lake Granger Conjunctive Use; expanded SW and GW treatment at Authority EWCRWTP by 82.1 MGD (Four Phases); amount of treated water made available: 45,985 acft/yr; and, meets demands through 2050. Includes tables.