14 ATTACHMENT 1 EXHIBIT A - Laserfiche WebLink

6.2.2.2 Groundwater Management.......................................................................................6-9 6.2.2.2.1 Groundwater Level Monitoring and Storage Estimates.................................6-10 6.2.2.2.2 Current Sustainable Yield and Groundwater Pumping Quotas ......................6-11 6.2.2.2.3 Artificial Recharge and Groundwater Extraction by Zone 7 ...........................6-11 6.2.2.2.4 Groundwater Quality Monitoring and Protection..........................................6-13 6.2.2.2.5 Land Surface Elevation Monitoring Program..................................................6-14 6.2.2.3 Historical and Projected Groundwater Use..............................................................6-15 6.2.3 Surface Water....................................................................................................................6-15 6.2.4 Stormwater........................................................................................................................6-15 6.2.5 Wastewater and Recycled Water...................................................................................... 6-15 6.2.5.1 Recycled Water Coordination..................................................................................6-16 6.2.5.1.1 DSRSD-EBMUD Recycled Water Authority(DERWA)......................................6-16 6.2.5.1.2 Livermore Water Reclamation Plant...............................................................6-17 6.2.5.2 Wastewater Collection, Treatment, and Disposal....................................................6-17 6.2.5.2.1 DSRSD's Regional Wastewater Treatment Facility (RWTF)............................6-17 6.2.5.2.2 Livermore Water Reclamation Plant...............................................................6-18 6.2.5.2.3 Wastewater Treatment and Discharge Within Service Area ..........................6-18 6.2.5.3 Recycled Water System Description........................................................................6-20 6.2.5.4 Potential, Current, and Projected Recycled Water Uses..........................................6-21 6.2.6 Desalinated Water.............................................................................................................6-24 6.2.7 Water Exchanges and Transfers.........................................................................................6-24 6.2.8 Future Water Projects........................................................................................................6-24 6.2.8.1 Bay Area Regional Desalination Project...................................................................6-25 6.2.8.2 Delta Conveyance Project........................................................................................ 6-26 6.2.8.3 Potable Reuse...........................................................................................................6-28 6.2.8.4 Sites Reservoir..........................................................................................................6-30 6.2.9 Summary of Existing and Planned Sources of Water.........................................................6-32 6.2.10 Climate Change Impacts..................................................................................................6-32 6.3 Energy Intensity...........................................................................................................................6-34 CHAPTER 7 Water Service Reliability and Drought Risk Assessment..................................................7-1 7.1 Water Service Reliability Assessment............................................................................................7-1 7.1.1 Constraints on Water Sources.............................................................................................7-1 7.1.1.1 Potable Water from Zone 7........................................................................................7-2 7.1.1.1.1 Imported Water: State Water Project..............................................................7-2 7.1.1.1.2 Arroyo Valle and Lake Del Valle........................................................................7-4 7.1.1.1.3 Chain of Lakes...................................................................................................7-5 7.1.1.1.4 Non -Local Storage.............................................................................................7-5 7.1.1.2 Groundwater..............................................................................................................7-6 7.1.1.3 Recycled Water..........................................................................................................7-6 7.1.2 Year Type Characterization..................................................................................................7-7 7.1.3 Water Service Reliability......................................................................................................7-8 7.1.3.1 Water Service Reliability — Normal Year....................................................................7-8 7.1.3.2 Water Service Reliability — Single Dry Year................................................................7-9 7.1.3.3 Water Service Reliability — Five Consecutive Dry Years...........................................7-10 K iii City of Pleasanton 2020 Urban Water Management Plan N-680-60-20-04-WP-R-680-2020UWMP May 2021