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3.0 Environmental impact Checklist <br /> With implementation of Mitigation Measures HYD-3 and HYD-4, the project would not <br /> substantially change the rate or amount of surface runoff that would result in on-or off-site <br /> flooding and the volume of runoff generated by the project would not substantially increase <br /> beyond existing stormwater conditions. Impacts would be less than significant with <br /> implementation of mitigation. <br /> g) Place housing within a 100-year flood hazard area as mapped on a federal FIood Hazard <br /> Boundary or Flood Insurance Rate Map or other flood hazard delineation map? <br /> h) Place within a 100-year flood hazard area structures that would impede or redirect flood <br /> flows? <br /> No Impact.According to the Flood Insurance Rate Maps prepared by the Federal Emergency <br /> Management Agency(FEMA), the project site is not located within a 100-year flood hazard area. <br /> The project would not expose housing to flood hazards or impede or redirect flood flows. <br /> i) Expose people or structures to a significant risk of loss,injury,or death involving flooding, <br /> including flooding as a result of the failure of a levee or dam? <br /> No Impact. Emerald Lake Dam, approximately 2.3 miles west of the project site,is the closest <br /> dam to the project site. The project site is not located within the inundation area of Emerald <br /> Lake Dam (City of Redwood City 2010b). The project would not expose people or structures to <br /> risks involving flooding associated with a dam failure. <br /> j) Cause inundation by seiche,tsunami, or mudflow? <br /> No Impact.The project site is located over 10 miles east of the Pacific Ocean and is <br /> approximately 5 miles from the San Francisco Bay.Due to this distance,the project site is not <br /> located within the County of San Mateo Tsunami Evacuation PIanning area and is not <br /> susceptible to impacts resulting from tsunamis or seiche(waves generated within enclosed <br /> surface water bodies).Risk of mudflows inundating the project site is remote given the <br /> relatively flat topography of the project site and the distance from exposed hillside area. <br /> La Palma Subdivision Project <br /> Final Initial Study/Mitigated Negative Declaration <br /> 45 <br />