09 ATTACHMENT 3 - Laserfiche WebLink

ivlarch 23, 2006 Page 3 WRA's proposed scope of the cumulative biology analysis: The focused Study Area for the local region surrounding these parcels will be undeveloped lands in the area bordered by I-680 to the west, State Route 84 to the south, Bernal Avenue to the north, and Vineyard Avenue to the east. The initial Study Area biological inventory effort will include mapping the following biological features from readily-available resource maps and aerial photographs (with limited ground truthing of accessible properties): (1) All major plant communities including oak woodland and riparian areas, (2) Blue line and other easily identifiable major drainages, (3) Stock ponds and other bodies of water that may serve as aquatic breeding habitat for wildlife species, (4) Special status species occurrences from the California Natural Diversity Database and other existing reliable data sources, (5) Designated critical habitat for federal-listed species, and (6) Unique soil types. This mapped information will be analyzed in an ArcInfo GIS system to evaluate prime wildlife usage areas including breeding locations, movement corridors, and foraging land. Other sensitive habitats including unique plant communities and soil types will be quantified within the Study Area. Any mapped critical habitat areas will be analyzed for the presence or absence of their particular "constituent element" requirements. This biological inventory analysis will be prepared as a stand alone document with a series of informative maps. The information gathered from this study will be used to conduct the CEQA cumulative impacts analysis for each of the three subject projects separately and in terms of their combined impact. Impacts from these proposed projects on biological resources such as wildlife breeding habitat and wildlife movement will be evaluated in relation to the projects' potential effects on this larger Study Area. Loss of oak woodland, riparian, and other sensitive habitats will be evaluated in relation to the acreage and location of remaining areas of each habitat within the Study Area. If one or more sensitive biological features are determined to have a potentially significant and unavoidable cumulative impact, a menu of potential mitigation measures will be suggested that may include replacement ratios and recommendations with respect to the geographic area(s) within which replacement areas could be sought. E. CULTURAL RESOURCES Prehistoric cultural resources have not been found at any of the sites to date. Historical resources have been found in and near the Greenbriar/Spotorno site but impacts were found either not to be significant or, if significant, then mitigatable. In the absence of project-related cultural resources impacts, there would be no cumulative impacts on cultural resources. Therefore, a cumulative analysis of the three projects is not proposed for this topic. :,. - '~~' - _ c ~~ Su:~. ~._s~ i .t,c:-i.. _.'~ `1~~1I~ ~ cr ~i`Jr,~/3 ,k: I,j 1-[:-`ipi{ t,nail: