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Piurlic•o Drive Turnout and Pipeline Project Euvironnreatnl Checklist 4. BIOLOGICAL RESOURCES Environmental Setting "1'he project transmission pipeline will be constructed within Pimlico and Brockton drives. The fluoridation building, "Lone 7 turnout, City of Pleasanton vault and Santa Rita control valve vault will be located within the public right-of--way adjacent Pimlico Drive and a dedicated public utility easement adjacent to Santa Rita Road, respectively. The roadway right-of way and public utility easement are landscaped with a combination of ornamental trees, shrubs and grass and provide no native plant or wildlife habitat. One approximately 11-inch DBII (diameter at breast height) ornamental Australian willow tree (Ceijera pan~iflora) occurs at the fluoridation building site and will be removed with construction. The fluoridation building site is bordered by a 6- inch DBH ornamental Australian willow tree to the west and a 14-inch DBH Australian willow tree to the east. Standards of Si~niticance For purposes of this environmental document, an impact is considered significant if the proposed project would: • Adversely affect, either directly or through habitat modification, any endangered, threatened or rare species, as listed in Title 14 of the California Code of Regulations (Sections 670.5) or in Title 50, Code of Regulations (Sections 17.11 or 17.12 or their habitats (including but not limited to plants, fish, insects, animals, and birds); • Have a substantial adverse impact, either directly or through habitat modification, on any species identified as a candidate, sensitive or special-status species in local or regional plans, policies, or regulations or by the CDFU or USFWS; • Have a substantial adverse impact on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the CDFG or USFWS; • Adversely affect federally protected wetlands (including but not limited to marsh, vernal pool, coastal, etc) either individually or in combination with the known or probable impacts of other activities through direct removal, filling, hydrological interruption, or other means; • Interfere substantially with the movement of any resident or migratory fish or wildlife species or with established resident or migratory wildlife corridors, or impede the use of wildlife nursery sites; or, • Conflict with any local or regional policies or ordinances designed to protect or enhance biological resources, such as a tree preservation policy or ordinance. City of Pleasanton 22 Wmzler & Kelly Draft Initial Study/Proposed Negative Declaration August 2006 04263501