09 ATTACHMENT 3 - Laserfiche WebLink

March 23, 2006 Page 2 (3) Develop a generalized terrain model of the sites and surrounding vicinity (up to an approximate 5 mile radius). (4) Based on terrain and project modeling, produce a generalized cumulative viewshed map showing areas from which at least two of the three projects would be potentially visible. (5) Conduct additional site reconnaissance and shoot additional site photography to document existing cumulative viewshed conditions if warranted based on results of viewshed modeling (assume up to 12 new photos). A2. If the work completed in Part A1, Tasks 3, 4, and 5, indicates that two or more of the projects would be visible from ground-level vantage points offthe sites, authorization will be requested for funds to complete the following additional tasks: (6) Environmental Vision will develop a work plan and budget for preparing cumulative visual simulations to show the appearance of the Oak Grove development with one or both of the other developments. (7) Environmental Vision will prepare a qualitative evaluation of cumulative visual effects associated with the three proposed residential developments. Selected photos may be used to illustrate the text. C. AIR QUALITY The methodology for air quality analysis considers the cumulative context in the Air Quality Management District (AQMD) modeling approach. The EIRs for the respective projects use the AQMD modeling approach and therefore take into account all projects included in the community's future transportation scenario. There will be no separate cumulative analysis of the three projects independent of this overall cumulative air quality analysis. D. BIOLOGICAL RESOURCES The analysis of the cumulative biological impacts of the Oak Grove, Lund 2, and Greenbriar/Spotorno residential developments on biological resources will be conducted by WRA. This analysis would require a level of effort considerably beyond that involved for the other CEQA topics. There are several reasons for this difference in scale, including: (1) the need to address a Study Area that covers not only the parcels included in the three projects but also lands between them and adjoining them, particularly in undeveloped areas south of the City limits, (2) a likely increase in the number of species involved, due to the larger area of analysis, and (3) the need to address corridors of wildlife movement within this larger area of analysis (between the project sites and offsite areas, between the project sites utilizing corridors crossing offsite lands, and between offsite areas crossing one or more project sites). ~, ,.:~~ ~ ,:rar.t.._ ;ttt.-. ~:;r: `}s:ui,c^ C';~, 9•i~(g ~ ~,:r~ •:~, li,~`l3 ~;,~ 11 1 .y