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Resolution No. PC -2009-40 <br />Page Four <br />4. Grading takes into account environmental characteristics and is <br />designed in keeping with the best engineering practices to avoid <br />erosion, slides, or flooding to have as minimal an effect upon the <br />environment as possible. <br />The natural topography of the site is relatively flat. Minus the grading of <br />the mound described earlier, minimal changes in grades are proposed. <br />Steep slope banks are not proposed. The site is not located within an <br />Alquist-Priolo Earthquake Fault Zone. Slides are not anticipated. <br />The proposed project will require the construction of stormwater detention <br />facilities to contain the 100 -year flood. An EIR mitigation measure for the <br />project requires the site to be removed from the flood hazard area prior to <br />occupancy. A recommended condition of approval requiring this to be <br />completed prior to the issuance of a building permit has been added. <br />Engineering modeling indicates that the implementation of the Livermore <br />flood protection improvements, as part of Livermore's approved EI Charro <br />Specific Plan, will provide sufficient detention to prevent inundation of the <br />Staples Ranch site for the 100 -year storm event. It is anticipated that <br />Livermore will begin the construction of these improvements this year. <br />To help prevent the erosion and pollution of the Arroyo Mocho, on-site <br />stormwater will be treated on-site for contaminates and directed into the <br />stormwater flow control basin on the Staples Ranch neighborhood park <br />before being released into the Arroyo Mocho. <br />On-site erosion control and dust suppression measures will be <br />documented in the improvement plans and inspected by the Building and <br />Safety Division during construction. <br />The grading, as conditioned, takes into account environmental <br />characteristics and is designed in keeping with the best engineering <br />practices to avoid erosion, slides, or flooding to have as minimal an effect <br />upon the environment as possible. Therefore, this finding can be made. <br />5. Streets and buildings have been designed and located to <br />complement the natural terrain and landscape. <br />