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4 <br />1.0 INTRODUCTION <br />Live Oak Associates, Inc. (LOA) completed an analysis of the potential biological impacts of the <br />111-acre proposed Spotorno Ranch project. The Spotorno Ranch property is located on the east <br />side of Alisal Street in the City of Pleasanton, Alameda County, California. The proposed project <br />is the development of 39 homes and associated infrastructure on approximately 28 to 30 acres of <br />the site, with the remaining approximately 81 acres set aside as a conservation area to be <br />preserved in perpetuity under a deed restriction, conservation easement, or other similar <br />conservation mechanism, with a habitat management plan (hereafter referred to as the <br />“conservation area”. The approximately 28 to 30-acre area proposed for development occurs in <br />the lower and flatter western portion of the site near Alisal; while the proposed conservation area <br />will occur within foothills in the eastern portion of the site above the 25% slope line. The site is <br />bound by Alisal Street to the west and south, Westbridge Lane to the southeast, agricultural <br />fields and residences to the north, and open rangelands to the east. The area of proposed <br />development is primarily used as agricultural land for growing hay and the area proposed as a <br />conservation area is used as rangeland for cattle. <br />This report analyzes potential impacts of future site development by the proposed Spotorno <br />Ranch development on sensitive biotic resources, significant biotic habitats, regional fish and <br />wildlife movement corridors, and existing local, state, and federal natural resource protection <br />laws regulating land use. Provisions of the California Environmental Quality Act (CEQA), the <br />federal Clean Water Act (CWA), the state and federal endangered species acts (CESA and <br />FESA, respectively), California Fish and Wildlife Code, and California Water Code could <br />greatly affect project costs, depending on the natural resources present on the site. The primary <br />objectives of this report are as follows: <br /> Summarize all site-specific information related to existing biological resources; <br /> Make reasonable inferences about the biological resources that could occur on the site <br />based on habitat suitability and the proximity of the site to a species’ known range; <br /> Summarize all state and federal natural resource protection laws that may be relevant to <br />possible future site development; <br /> Identify and discuss biological resource issues specific to the site that could constrain <br />future development; and