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City of Pleasanton—Merritt Property Project <br />Consistency Checklist 15183 Consistency Checklist <br /> <br /> <br />192 <br />and fair share fees for storm drainage and wastewater treatment facility <br />improvement costs in order to maintain the required service levels. Therefore, <br />there are no environmental effects that are peculiar to the proposed project. <br />The proposed project would not result in a new or more severe adverse <br />impact that was not previously identified in the Housing Element Update FEIR. <br />b) Water Supply <br />Would the project: Have sufficient water supplies available to serve the project and <br />reasonably foreseeable future development during normal, dry <br />and multiple dry years? <br />Summary of Housing Element Update FEIR <br />The Housing Element Update FEIR indicated that a significant impact would <br />occur if sufficient water supplies are not available to serve development <br />consistent with the Housing Element Update and reasonably foreseeable <br />future development during normal, dry, and multiple dry years. <br />With all groundwater wells online, the water demand projections associated <br />with development consistent with the Housing Element Update fall within the <br />City’s total water demand projects for all years. However, at the time of <br />certification of the Housing Element Update FEIR, all of the City’s <br />groundwater supply wells had been taken out of commission because of <br />polyfluoroalkyl substances (PFAS) contamination, representing approximately <br />20 percent of the total water supply for the City. As a result, the Housing <br />Element Update FEIR concluded that unless the supply is either replaced or <br />restored, there would be a significant projected water supply deficiency for <br />all years analyzed, with a projected deficiency ranging from approximately <br />12 percent to approximately 25 percent. Without the groundwater supply, <br />there would not be enough water available to accommodate development <br />anticipated by the Housing Element Update unless alternative water supplies <br />are identified. <br />Because the City was still evaluating options for additional water and had <br />not confirmed additional supplies at the time of certification of the Housing <br />Element Update FEIR, the potential water supply deficiency was considered <br />significant and unavoidable. <br />The Housing Element Update FEIR noted that the analysis reflected a <br />conservative approach, and likely overreported the deficit; nevertheless, <br />because supply replacement options have not been confirmed and a final <br />decision has not been made to replace the groundwater supply, the Housing