3_Presentation on revisions to the draft Water Forward 2024 Plan, Water Conservation Plan and Drought Contingency Plan — original pdf

Backup

1 Presentation on revisions to the draft Water Forward 2024 Plan, Water Conservation Plan and Drought Contingency Plan 10/8/24 Report Edits  No further edits were made to the WCP/DCP in this round  Water Forward 2024 edits include: • New cover page, header, footer, and water supply graphics • Ch. 4: Edits to Colorado River Land Analysis section (pp. 25-27) • Ch.5 • Additional intro language and strategy summary table (p. 28) • Updated Customer Side Water Use Management 2030 & 2040 Yields (p. 30) • Updated Native and Efficient Landscape 2030 & 2040 Yields (p. 31) • Edits to Land Conservation Strategies section (pp. 44-46) • Ch.6: Added section on 100-Year Adaptive Management Plan (pp. 48-49)  Pending edits: • Completion of Executive Summary • Appendix references (and completion of appendices) • Breakout of Indirect Potable Reuse & Capture Local Inflows to Lady Bird Lake • Further grammar, spelling, readability, and formatting edits as needed Colorado River Land Analysis Overview Identifying Priority Conservation Areas in the Highland Lakes Watershed  Helps understand solution geography and scale • Lake Travis drainage area is 40x that of entire Austin corporate limits! • Want/need to focus on the highest priority areas within this large basin • Some areas clearly more critical to conserve than others  Rating system: consider multiple factors • Water supply: stream flows, recharge, springs, wells, AW intakes • Environmental: riparian/floodplains, impervious cover, protected lands, slopes, vegetation  Combine via GIS to spatially show priority conservation areas in the Highland Lakes Watershed Central Texas and waterways of interest Rivers • • Colorado Llano • • • • Pedernales San Saba North Llano South Llano Watersheds • Middle Colorado, Brady, San Saba, Llano, North Llano, South Llano, Buchanan-LBJ Lakes, Pedernales, Lake Travis, Lake Austin Lake Austin Watershed (92 sq. mi.) Barton Springs Zone (371 sq. mi.) GIS analysis factors: scales and weights Flow Recharge Zones Springs Distance from Intakes Wells Combined Water Factors Raster Combined Water Factors Raster Riparian & Floodplain Vegetation Pavement Slopes Protected Lands Vegetation Combined Environmental Factors Raster Combined Enviro. Factors Raster Final Conservation Priority Raster Final Conservation Priority Raster 13 Colorado River Land Analysis Next Steps  Further refine conservation prioritization model based on stakeholder feedback  Conduct additional analysis to include economic, equity, and social factors + further watershed modeling  Engage with land conservation and governmental entities; evaluate potential partnership opportunities  Evaluate funding strategies  Identify mix of land protection strategies; finalize program design Questions?