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City of Pleasanton—Villages at the Quarry Project <br />Consistency Checklist 15183 Consistency Checklist <br /> <br /> <br />152 <br />the potential for loss, injury, or death from impeding flood flows would be less <br />than significant. <br />Proposed Project Analysis and Conclusion <br />As discussed above, the proposed project would include an additional <br />1,348,814 square feet of impervious surface. Additionally, the project site is in <br />an area of minimal flood risk (Zone X).28 <br />Although the proposed project would include new impervious surfaces, <br />which could lead to an increase in surface runoff that could lead to flooding, <br />as detailed in the Preliminary Stormwater Control Plan, the proposed project <br />is required to treat 100 percent of the runoff from impervious surfaces within <br />the project site. This would be achieved by directing all runoff (i.e., roof, <br />street, and driveway) to six proposed bioretention basins located throughout <br />the project site. <br />Landscaping would include planting several trees, which would improve <br />water quality by intercepting and storing rainfall on leaves and branch <br />surfaces, thereby reducing runoff volumes and delaying the onset of peak <br />flows. In addition, the uptake of water from trees through transpiration would <br />reduce the amount of runoff from the project site. The landscaping design <br />would be required to meet State standards for water efficiency. <br />Additionally, as discussed above, the proposed project must comply with <br />NPDES permit requirements, the Municipal Code, and General Plan goals, <br />policies, and actions that would reduce flood risk. <br />Therefore, there are no environmental effects that are peculiar to the <br />proposed project. The proposed project would not result in a new or more <br />severe adverse impact that was not previously identified in the Housing <br />Element Update FEIR. <br />d) Risk of Pollutant Release Due to Inundation <br />Would the project: In flood hazard, tsunami, or seiche zones, risk release of pollutants <br />due to project inundation? <br />Summary of Housing Element Update FEIR <br />The Housing Element Update FEIR indicated there are no large, confined <br />water bodies within the City susceptible to seiches and that no portion of the <br /> <br />28 Federal Emergency Management Agency (FEMA). 2009. Flood Insurance Rate Map, Panel 336 of 608, Map <br />Number 06001C0336G. Effective Date August 3, 2009.