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Update on Volumetric Surveys of Lakes Travis & Buchanan 1/12/2021 Update on water supply lake volumetric surveys  LCRA owns and operates Lakes Travis and Buchanan, the region’s water supply and flood control lakes  Combined storage is approximately 2 million acre-feet  LCRA has contracted with TWDB to survey Lake Travis • Lake Travis survey is planned to be completed in early 2021  TWDB recently completed a survey of Lake Buchanan for LCRA • The survey showed slightly more capacity than Buchanan's last survey Update on water supply lake volumetric surveys  LCRA re-surveys Lakes Travis and Buchanan regularly • Approximately every 10 years  TWDB uses up-to-date techniques for surveying • TWDB's Hydrographic Survey Program has completed 174 hydrographic surveys on 110 unique reservoirs.  Regional water planning processes take projected sedimentation into account in determining firm yield QUESTIONS