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2025 Urban Water Management Plan <br /> City of Pleasanton <br /> Public Draft | May 2026 <br /> ii EKI Environment & Water, Inc. <br />4.5.2 Water Savings from Codes, Standards, Ordinances, or <br />Transportation and Land Use Plans .............................................................. 4-7 <br />4.5.3 Projected Total Water Demand .................................................................... 4-8 <br />4.5.4 Water Use by Lower Income Households ................................................... 4-10 <br />4.5.5 Characteristic Five-Year Water Use ............................................................ 4-10 <br />4.6 Water Use Sectors Not Included in Demand Projections .............................................. 4-11 <br />4.7 Climate Change Considerations ..................................................................................... 4-11 <br />4.8 Coordinating Water Use Projections ............................................................................. 4-12 <br />4.9 Urban Water Use Objective ........................................................................................... 4-12 <br />5 SB X7-7 BASELINE, 2020 TARGET, AND 2025 REPORTING ...................................................... 5-1 <br />6 WATER SUPPLY CHARACTERIZATION ................................................................................... 6-1 <br />6.1 Purchased Water ............................................................................................................. 6-1 <br />6.1.1 Water Supply Purchases from Zone 7 .......................................................... 6-1 <br />6.1.2 Zone 7 Water Supply Sources ....................................................................... 6-1 <br />6.2 Groundwater .................................................................................................................... 6-7 <br />6.2.1 Basin Description and Status ........................................................................ 6-7 <br />6.2.2 Pre-SGMA Groundwater Management ........................................................ 6-9 <br />6.2.3 Groundwater Management Under SGMA .................................................... 6-9 <br />6.2.4 Historical Pumping and Supply Sufficiency ................................................. 6-15 <br />6.3 Surface Water ................................................................................................................ 6-15 <br />6.4 Stormwater .................................................................................................................... 6-15 <br />6.5 Wastewater and Recycled Water .................................................................................. 6-16 <br />6.5.1 Recycled Water Coordination ..................................................................... 6-16 <br />6.5.2 Wastewater Collection, Treatment, and Disposal ...................................... 6-17 <br />6.5.3 Recycled Water System Description ........................................................... 6-21 <br />6.5.4 Potential, Current, and Projected Recycled Water Uses ............................ 6-21 <br />6.5.5 Actions to Encourage and Optimize Future Recycled Water Use............... 6-24 <br />6.6 Desalinated Water Opportunities .................................................................................. 6-25 <br />6.7 Water Exchanges and Transfers .................................................................................... 6-25 <br />6.8 Future Water Projects .................................................................................................... 6-26 <br />6.8.1 Supply Projects............................................................................................ 6-26 <br />6.8.2 Infrastructure Projects ................................................................................ 6-29 <br />6.9 Summary of Existing and Planned Sources of Water ..................................................... 6-31 <br />6.10 Special Conditions .......................................................................................................... 6-33 <br />6.10.1 Climate Change Effects ............................................................................... 6-33 <br />6.10.2 Regulatory Conditions and Project Development ...................................... 6-33 <br />6.11 Energy Intensity ............................................................................................................. 6-34 <br />7 WATER SUPPLY RELIABILITY ASSESSMENT ........................................................................... 7-1 <br />7.1 Constraints on Water Sources ......................................................................................... 7-2 <br />7.1.1 Purchased Water Supply from Zone 7 .......................................................... 7-2 <br />7.1.2 Groundwater ................................................................................................. 7-6