Iv. Environmental Impact Analysis D. Biological Resources
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IV. ENVIRONMENTAL IMPACT ANALYSIS D. BIOLOGICAL RESOURCES INTRODUCTION The Sea Glass Project Site is located at 6719 S. Pacific Avenue in Playa del Rey, immediately adjacent to and east of Dockweiler State Beach and less than ½ mile south of Ballona Creek. The site is bounded to the north and south by existing residential development (aside from a groomed portion of beach sand immediately adjacent on the north side, beyond which is an apartment complex), and is bounded to the east by Pacific Avenue with the Del Rey Lagoon and a city park with a ballfield beyond. The Project Site currently consists of undeveloped partially-vegetated sandy terrain (on the eastern half) and groomed beach sand (on the western half), and portions of the site were once occupied by commercial and/or residential structures. The eastern half of the property which supports limited coastal strand habitat is currently fenced to prevent public access. Historic photographs, Sanborn fire maps, and building permits indicate a majority of the western portion of the site (the Pacific Avenue frontage) was developed with residences between the 1940s and the late 1960s, with a few structures remaining until the 1980s – the foundations of some of these residences remain on the site today. Methods Several biological site studies were conducted on-site for the proposed project, involving three biological consulting firms and independent peer reviews by other knowledgeable individuals. These biological survey and review methods are summarized below. 2004 In 2004, Rincon Consultants, Inc. (Rincon) conducted a search of the California Natural Diversity Database (CNDDB)1 to help identify those special status plants and animals that may be in the project vicinity. Additional resources utilized to characterize the site included U.S. Geological Survey (USGS) topographic maps2, available aerial photography3, and discussion with regulatory personnel (U.S. Fish and Wildlife Service [USFWS] and California Department of Fish and Game [CDFG]). A field reconnaissance of the project area was conducted by Rincon on April 8, 2004 for identification of any onsite habitats, special-status biological resources, natural communities of special concern, drainages, wildlife corridors or other potential biological resources onsite. If seen, such resources were noted; otherwise potential habitat for special status species was identified based on a suitability analysis. 1 California Department of Fish and Game (CDFG). 2003 and 2004. California Natural Diversity Database. Search for occurrence records conducted in December 2003 and June 2004. 2 National Geographic. 2001. 3 USGS. TerraServer (http://terraserver.microsoft.com) Sea Glass Townhome Project IV.D. Biological Resources Screencheck Draft Environmental Impact Report Page IV.D-1 City of Los Angeles October 2006 2005 Additional surveys were conducted in 2005 to identify special status bird, arthropod and plant resources, based on recommendations resulting from the April 8, 2004 field reconnaissance. Rincon conducted a 100% walkover of the site on May 10, 2005 to inventory the biological resources present and identify potential special status resources; the survey primarily focused on searching for one special status plant species (Orcutt’s pincushion [Chaenactis glabriuscula var. orcuttiana]), and two federally listed bird species (western snowy plover [Charadrius alexandrinus nivosus], and California least tern [Sterna antillarumm browni])4. On May 12, 2005, Frank Hovore and Associates (FH&A) conducted focused surveys for special status arthropods, which included documentation of weather and site conditions; visual searches for arthropods on flowers, vegetation, and on the sand surface; inspection of fine debris collected in swales and beneath shelter; shaking off vegetation over a clean substrate; and sifting sand. Four sifted sand samples were collected from under each dominant plant species present on-site (silver beach bursage [Ambrosia chamissonis], beach evening primrose [Camissonia cheiranthifolia], sea rocket [Cakile maritime], and iceplant [Carpobrotus edulis]); one sample was collected beneath pink sand verbena (Abronia umbellata), and three samples were collected (one on the north property area and two on the south property area) beneath ruderal species including brome (Bromus sp.). 2006 In March 2006, the results of the above studies conducted in 2004 and 2005 were independently reviewed at the request of the City of Los Angeles. Dr. Rudi Mattoni of the University of California at Los Angeles (UCLA) noted that the surveys and results were adequate, but raised an issue regarding a rare plant species that was not identified in the reports – Lewis’ evening primrose (Camissonia lewisii), which Dr. Mattoni has observed in the Los Angeles International Airport (LAX) and Ballona areas. Dr. Mattoni has not formally surveyed the site, but believes he has previously observed Lewis’ evening primrose on the site. Christine Medak at the USFWS concurred with the results that no listed plants or animals were found during surveys and that the listed El Segundo blue butterfly (Euphilotes battoides allyni), the Pacific pocket mouse (Perognathus longimembris pacificus), and the western snowy plover (Charadrius alexandrinus nivosus) are unlikely to occur on-site. Ms. Medak did note that the site has the potential to be used by other nesting birds, including the endangered California least tern (Sterna antillarum browni), and that measures should be implemented to avoid impacts to nesting birds (such as avoiding construction during the bird breeding season); however, if the California least tern is ever found to be nesting on-site, USFWS should be consulted at that time. CDFG also submitted comments on the Notice of Preparation (letter dated August 24, 2006). This letter referenced an on-site meeting with CDFG and the City which occurred on June 19, 2006. The letter also referenced that CDFG had received and reviewed the biological assessment report prepared by Rincon dated March 24, 2004 and the summary of special status species dated June 21, 2005. In their comment letter, CDFG requested that the EIR contain specific information, including analyses of project-related 4 Scientific names for plant or animal species are only given for the first occurrence in this document; subsequent occurrences of each species will only be identified by common name. Sea Glass Townhome Project IV.D. Biological Resources Screencheck Draft Environmental Impact Report Page IV.D-2 City of Los Angeles October 2006 impacts to sensitive species known to occur on or in the vicinity of the site, and measures to avoid, minimize, and offset impacts to biological resources. Specific sensitive biological resources mentioned include beach morning glory (Calystegia soldanella), sand verbena (Abronia maritima), Dorothy’s El Segundo dune weevil (Trigonoscuta dorthea), silvery legless lizard (Anniella pulchra pulchra), and Southern foredune habitat. CDFG specifically recommended on- or off-site mitigation for impacts to Southern foredune habitat at a 5:1 ratio. In May 2006, CAJA biological staff also conducted a peer review of the 2004 and 2005 study reports, as well as the independent peer reviews and other environmental analysis documents from the vicinity, including the LAX Master Plan EIR/EIS. Based on this review, additional survey recommendations were made to Dudek Engineering and Environmental (Dudek) for their additional on-site surveys. Dudek conducted a peer review of the two Rincon reports described above. Sensitive biological resources present or potentially present onsite were identified through a search using CDFG’s CNDDB and the California Native Plant Society’s online Inventory of Rare and Endangered Vascular Plants5. Dudek biologists also conducted two site visits on May 26 and 31, 2006 to conduct additional focused surveys and habitat assessments for special status plant and wildlife species. The peer review determined that the previous reports were complete and thorough. The site surveys concluded that one special status plant species, red sand-verbena (Abronia maritima, a CNPS List 4.2 species) was present on-site at three separate locations, and that no other special status plants had the potential to occur on-site. The site surveys also concluded that no sensitive wildlife species were observed on-site, including the California least tern. Additionally, Dudek noted that there is a moderate potential for the silvery legless lizard (Anniella pulchra pulchra, a State Species of Special Concern) to occur on-site due to the sandy soil conditions and observations of this species in similar situations, but a focused survey did not reveal the presence of any silvery legless lizards on the site. In sum, Dudek’s report identified only one issue for further analysis: the potential CEQA significance of impacts to Dorothy’s El Segundo dune weevil (discussed below). Applicable Regulatory Requirements Federal Federal Endangered Species Act The Federal Endangered Species Act (FESA) defines an endangered species as “any species that is in danger of extinction throughout all or a significant portion of its range.” Threatened species are defined as “any species which is likely to become an endangered species in the foreseeable future throughout all or significant portions of its range.” The Sacramento, California United States Fish and Wildlife Service (USFWS) Field Office describes Federal Species of Concern (FSC) as “a sensitive species that has not been listed, proposed