Evaluation of Groundwater Supply Alternatives Within Bernal Subbasin

Table 2 Turnout Flows for Buildout Maximum Day Demand Alternatives Groundwater Supply Alternative Evaluation City of Pleasanton PRELIMINARY Fill (Max Flow)Drain Average (psi)(psi)(gpm)(gpm)(gpm) Alternative 2a - Future Demands with 100% Zone 7 Purchases (32.9 mgd) TO 1 Lower 55-82 psi 93 psi 3,500 2,500 3,071 Operating TO1 helps balance Foothill and Sycamore Tank Levels TO 2 Lower 62-83 psi Avg. 58 psi 46-68 psi 0 0 0 Zone 7 pressures too low to operate TO 3 Lower 56-82 psi Avg. 123 psi 88-149 psi 2,500 2,500 2,500 TO 4 Lower (To be boosted when required) 62-81 psi Avg. 97 psi 75-145 psi 5,200 4,300 4,814 Booster Station at TO4 Planned TO 5 Lower 50-78 psi Avg. 117 psi 50-160 psi 6,000 5,300 5,700 TO 6 Bonde (Boosted)82-93 psi 2,400 0 1,545 TO 7 Ruby Hill Upper (Boosted)128 - 157 psi 1,740 0 915 TO 8 (Proposed)Lower 47-75 psi 5,000 4,000 4,571 Proposed Turnout near Vineyard and Bernal Fill (Max Flow)Drain Average (psi)(psi)(gpm)(gpm)(gpm) Alternative 2b - Future Demands with 2 New City Wells (32.9 mgd) TO 1 Lower 55-80 psi 93 psi 3,500 2,000 2,857 Operating TO1 helps balance Foothill and Sycamore Tank Levels TO 2 Lower 64-84 psi Avg. 58 psi 46-68 psi 0 0 0 Zone 7 pressures too low to operate TO 3 Lower 54-77 psi Avg. 123 psi 88-149 psi 1,500 1,500 1,500 TO 4 Lower (To be boosted when required) 64-81 psi Avg. 97 psi 75-145 psi 5,000 4,500 4,786 Booster Station at TO4 Planned TO 5 Lower 48-73 psi Avg. 117 psi 50-160 psi 7,000 5,500 6,357 TO 6 Bonde (Boosted)82-93 psi 2,400 0 1,530 TO 7 Ruby Hill Upper (Boosted)128 - 155 psi 1,740 0 915 Tennis Park Well Lower 65-85 psi -2,500 Hansen Park Well Lower 65-86 psi -2,500 10/6/2025 2,500 2,500 Supply ID Destination Zone Pleasanton Pressures Zone 7 Historical Pressures Turnout Flow Comments Supply ID Destination Zone Pleasanton Pressures Zone 7 Historical Pressures Turnout Flow Comments Docusign Envelope ID: A2CEC78C-F0FD-4D4D-9F39-237EDFC2492E