D2 — original pdf
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Water Supply Outlook Agenda Water supply overview Current water supply status • FY21 overview • Water supply outlook COA-LCRA Partnership update Other items Water supply overview • Colorado River and Highland Lakes • State-granted water rights & long-term firm contract with LCRA • 325,000 acre-feet per year t e e f - e r c a , e g a r o t S 2,200,000 2,000,000 1,800,000 1,600,000 1,400,000 1,200,000 1,000,000 800,000 600,000 400,000 200,000 Combined Storage of Lakes Buchanan and Travis January 1, 2005 through October 1, 2021 2.01M ac-ft Full Storage Current water supply status 0.6M ac-ft Interruptible stored water for non- Garwood divisions was not provided by LCRA in 2012 through 2015. 0 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 Jan-12 Jan-13 Jan-14 Jan-15 Jan-16 Jan-17 Jan-18 Jan-19 Jan-20 Jan-21 Jan-22 t e e F - e r c A 225,000 200,000 175,000 150,000 125,000 100,000 75,000 50,000 25,000 0 Highland Lakes Inflows Average 1942 - Present Average 2008 - 2015 2021 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Water supply outlook • Moderate strength La Niña expected to persist through the winter • In TX, La Niña usually results in drier and warmer-than- average weather COA-LCRA Water Partnership The Water Partnership was created through the June 2007 Austin and LCRA Settlement Agreement Provides a cooperative management structure through which Austin and LCRA staff can collaborate and more effectively manage both entities’ water supplies and resources COA-LCRA Water Partnership update Key partnership activities: • Ongoing meetings of the Technical and Water Quality Committee • TCEQ water use reporting • Mussel monitoring and response • Harmful algae coordination • Region K water planning process LCRA Water Management Plan (WMP) New LCRA WMP was approved by TCEQ in Feb. 2020 Key changes from previous WMP: • Updated limits on the releases of interruptible stored water • New max limit on release of interruptible stored water • Updated limits on releases of water to help meet environmental flow needs • Test for declaring Drought Worse than Drought of Record updated to reflect new Drought of Record Other items Water Forward Supplies • 2018 plan includes strategies to protect our core Colorado River • 2024 plan will include updated climate and hydrology analysis and updated supply needs assessment AW staff continue to participate with and provide input into regional planning efforts When needed, AW staff work with state water agencies on water rights issues Questions?