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The site is predominately flat, with a gradual slope to the west. The site is <br /> approximately 355' in elevation at the eastern property line, and approximately <br /> 350' at the western property line. There is a large mound on the property which <br /> is material imported by KB Homes in 1995 in anticipation of using it for fill <br /> material as part of a residential project that was never constructed. <br /> Accordingly, the project, as conditioned, is compatible with previously developed <br /> properties in the vicinity and adjacent proposed projects, and the natural, <br /> topographic features of the site. <br /> 4. Does grading take into account environmental characteristics and is it <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. Minimal changes in grades <br /> are proposed. Steep slope banks are not proposed. The site is not located <br /> within an 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 project <br /> requires the site to be removed from the flood hazard area prior to occupancy. <br /> Staff has added a recommended condition of approval requiring this to be <br /> completed prior to the issuance of a building permit. Engineerng modeling <br /> indicates that implementation of the Livermore flood protection improvements, as <br /> part of Livermore's approved El Charro Specific Plan, will provide sufficient <br /> detention to prevent inundation of the Staples Ranch site for the 100-year storm <br /> event. It is anticipated that Livermore will begin the construction of these <br /> improvements next 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, before <br /> being released into the Arroyo Mocho. <br /> On site erosion control and dust suppression measures will be documented in <br /> the improvement plans and inspected by the Building and Safety Division during <br /> construction. <br /> Accordingly, the grading, as conditioned, takes into account environmental <br /> characteristics and is designed in keeping with the best engineering practices to <br /> avoid erosion, slides, or flooding to have as minimal an effect upon the <br /> environment as possible. <br /> PUD Findings PUD-57 <br /> Page 3 of 5 <br />