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APPENDIX 4.2 Biological Resources Documentation

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APPENDIX 4.2 Biological Resources Documentation APPENDIX 4.2 Biological Resources Documentation Biological Habitat Evaluation Report 635 Carmel Avenue, Albany, CA 94706 VillaSport Athletic Club Project Roseville, Placer County BIOLOGICAL HABITAT EVALUATION REPORT PREPARED FOR: Paul Stephenson Impact Sciences 510/267-0494 PREPARED BY: Pacific Biology 635 Carmel Avenue Albany, CA 94706 Contact: Josh Phillips 510/527-1008 September 2013 TABLE OF CONTENTS EXECUTIVE SUMMARY ....................................................................................................................... ii 1.0 INTRODUCTION ............................................................................................................................. 1 2.0 PROJECT LOCATION .................................................................................................................... 1 3.0 PROJECT DESCRIPTION .............................................................................................................. 1 4.0 METHODOLOGY ............................................................................................................................ 1 5.0 EXISTING BIOLOGICAL CONDITIONS .................................................................................... 2 6.0 SPECIAL-STATUS SPECIES ......................................................................................................... 6 (i) Special-Status Plant Species .................................................................................................... 6 (ii) Special-Status Wildlife Species .............................................................................................. 8 7.0 JURISDICTIONAL RESOURCES ............................................................................................... 11 8.0 SENSITIVE PLANT COMMUNITIES ........................................................................................ 12 9.0 WILDLIFE MOVEMENT CORRIDORS .................................................................................... 12 10.0 PROTECTED TREES .................................................................................................................... 13 11.0 LITERATURE CITED ................................................................................................................... 14 FIGURES: Figure 1. Regional Project Site ................................................................................................................... 5 Figure 2. Local CNDDB Map ..................................................................................................................... 7 VillaSport Athletic Club Project i Biological Habitat Evaluation Report EXECUTIVE SUMMARY The proposed project includes the construction of a recreational facility that would include an approximately 88,000-square-foot building and an approximately 50,000-square-foot outdoor area. The project site previously contained a building foundation (which has been partially removed) and has been subject to past disturbances from mass grading and other earthwork in 2006. Despite the past disturbance of the site, wetlands and seasonally ponded areas still occur on the project site. The onsite seasonal pools could be remnants of natural vernal pools that once occurred on the site, the result of construction activities that resulted in topographic depressions, or a combination of both. Further investigation would be required to determine if despite the mass grading of the site, specific areas on the site could still be considered jurisdictional wetlands and/or vernal pools (a sensitive habitat type). Boggs Lake hedge-hyssop and dwarf downingia are special-status plant species known from nearby areas, and both species are associated with vernal pool habitats. While the project site is in a disturbed condition and has been mass graded, some vernal pool-associated plant species occur in areas that appear to experience seasonal ponding. Therefore, appropriately timed surveys would be required to determine if either of these special-status plant species occurs on the project site. Further evaluation would also be required to determine if vernal pool-associated wildlife species known from nearby areas (i.e., vernal pool fairy shrimp [federally Threatened], California linderiella, and/or western spadefoot) occur on the project site. Additionally, further evaluation would be required to determine if the project site could be considered foraging habitat for Swainson's hawk (a state Threatened species). VillaSport Athletic Club Project ii Biological Habitat Evaluation Report 1.0 INTRODUCTION Pacific Biology conducted a biological habitat evaluation of the proposed VillaSport project site, located in Roseville, Placer County, California. The evaluation was conducted to identify and characterize onsite habitats; to assess the potential of special-status plant and wildlife to occur; to identify any wetlands or other sensitive habitats present; and to recommend future actions necessary to further evaluate any sensitive biological resources present or potentially present. 2.0 PROJECT LOCATION The project site is located on a currently undeveloped parcel that is bordered to the north by the Roseville Bypass, to the east by a shopping mall (Westfield Galleria), to the west by Kaiser Permante facilities, and to the south by Roseville Parkway. The project site is mapped on the Roseville USGS 7.5-minute quadrangle and its location is shown in Figure 1. 3.0 PROJECT DESCRIPTION The proposed project includes the construction of a recreational facility that would include an approximately 88,000-square-foot building and an approximately 50,000-square-foot outdoor area. 4.0 METHODOLOGY Database and Information Review The latest version of the California Natural Diversity Data Base (CNDDB) was reviewed for the project area. The intent of the database review was to document all occurrences of special-status species in the project area and to determine their location relative to the project site. Existing spatial information depicting the project area was also compiled and reviewed. This information included publicly available digital ortho-rectified aerial photography and topographical quadrangle maps. Field Survey Josh Phillips (Principal Biologist of Pacific Biology) conducted a reconnaissance-level field survey on September 11, 2013. The field survey included walking the entire project site and describing the onsite habitats. A search was conducted for potentially jurisdictional resources (e.g., creeks, riparian habitat, wetlands) and other sensitive plant communities (e.g., native grasslands, vernal pools), and the dominant plant species and all wildlife species observed were identified. The potential of special-status species to occur was evaluated based on the suitability VillaSport Athletic Club Project 1 Biological Habitat Evaluation Report of habitat, known range and life history requirements of special-status species occurring in the region, and other factors. 5.0 EXISTING BIOLOGICAL CONDITIONS The project site previously contained a building foundation (which has been partially removed) and has been subject to past disturbances from mass grading and other earthwork in 2006. Additionally, a berm has been constructed along the northern portion of the project site. Due to these disturbances, the central portion of the site is dominated by weedy vegetation and non- native grasses, including stinkwort (Dittrichia graveolens), ripgut brome (Bromus diandrus), and wild oat (Avena sp.). Stinkwort is a noxious weed that is spreading in California. Photo 1:Central portion of site dominated by stinkwort Despite the past disturbance of the site, wetlands and seasonally ponded areas still occur on the project site. A seasonal wetland occurs in the northwest corner of the project site. At the time of the site visit, portions of the wetland contained standing water while other areas had damp soils or contained other wetland indicators. Cattails (Typha latifolia) were present in portions of the wetland, indicating prolonged periods of soil saturation, while rushes (Juncus sp.) were widespread throughout the wetland. A portion of the wetland extends to the north of the fence- line (presumably indicating the property boundary) and is adjacent to the Roseville Bypass. The VillaSport Athletic Club Project 2 Biological Habitat Evaluation Report entire wetland is generally separated from the low-lying portions of the site by the berm along the northern property boundary. Photo 2: Wetland in northwest portion of property There are topographic depressions on the site that appear to be the result of past grading/construction activities, but that also appear to hold standing water for at least a portion of the wet season. These areas primarily occur along the northern portion of the site (just south of the berm) and in the southern portion of the site. At the time of the site visit, these areas were sparsely vegetated and showed signs that standing water occurs during the wet season, such as wetland- and/or vernal pool-associated plant species (e.g., denseflower willowherb [Epilobium densiflorum], woolly marbles [Psilocarphus sp.], and rabbitsfoot grass [Polypogon meritimus]), agal mats, and/or crust on the soil surface. It should be noted that the project site is located in an area where vernal pools occur (see Figure 2), and the seasonal water features on the site are likely the result of an intact hardpan (a feature associated with naturally occurring vernal pools). Given this, the onsite seasonal pools could be remnants
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