PC-2009-17, PUD-57, HENDRICK AUTOMOTIVE GROUP

Resolution No. PC -2009-17 Page Three The site is predominantly flat, with a gradual slope to the west. The site is approximately 355 feet in elevation at the eastern property line, and approximately 350 feet at the western property line. There is a large mound on the property which is material imported by KB Homes in 1995 in anticipation of using it for fill material as part of a residential project that was never constructed. The project, as conditioned, is compatible with previously developed properties in the vicinity and adjacent proposed projects, and the natural topographic features of the site. Therefore, this finding can be made. 4. Grading takes into account environmental characteristics and is designed in keeping with the best engineering practices to avoid erosion, slides, or flooding to have as minimal an effect upon the environment as possible. The natural topography of the site is relatively flat. Minimal changes in grades are proposed. Steep slope banks are not proposed. The site is not located within an Alquist-Priolo Earthquake Fault Zone. Slides are not anticipated. The proposed project will require the construction of stormwater detention facilities to contain the 100 -year flood. An EIR mitigation measure for the project requires the site to be removed from the flood hazard area prior to occupancy. A recommended condition of approval requiring this to be completed prior to the issuance of a building permit has been added. Engineering modeling indicates that the implementation of the Livermore flood protection improvements, as part of Livermore's approved EI Charro Specific Plan, will provide sufficient detention to prevent inundation of the Staples Ranch site for the 100 -year storm event. It is anticipated that Livermore will begin the construction of these improvements this year. To help prevent the erosion and pollution of the Arroyo Mocho, on-site stormwater will be treated on-site for contaminates and directed into the stormwater flow control basin on the Staples Ranch Neighborhood Park before being released into the Arroyo Mocho. On-site erosion control and dust suppression measures will be documented in the improvement plans and inspected by the Building and Safety Division during construction.