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maturity to get a better impression of what the finished project will actually look like after a number of yeazs have passed. Ms. Mundie then showed overhead slides of the southern edge of Pleasanton Ridge taken from Grey Eagle Court. She first described the existing view; followed by one right after construction with landscaping at zero yeazs and a few houses; then one after five years where there has been some screening as the vegetation is in place and is beginning to grow; and finally one after 15 years where there is a substantial amount of vegetation and most of the houses are screened. She noted that a house is visible where the vegetation ends, and this might be a place where maybe more mitigation trees might be needed. Ms. Mundie pointed out that these visual simulations are of assistance in a number of different ways, the most important of which are to give decision-makers an idea of what the completed project will look like, and then to give the EIR team one measure of determining whether there are significant aesthetic impacts associated with the project. She added that, in fact, Chapter 4, Part A did find significant impacts associated with the aesthetics and visual resources: In Impact A-1, public uses and facilities, including new roads, need to be integrated into the surrounding landscape, primarily by landscape and plantings. It is recommended that the mandatory design guidelines be revised to put more lots into the category of "high visibility," which would have the effect of placing more restrictive setbacks and landscape requirements on all the lots that would be added to this group. Ms. Mundie then noted that no adverse impacts were found in the case of agriculture. She added that in the case of air quality, the methodology, the information, and the analysis are determined by regional agencies and that the regional criteria established by the Bay Area Air Management Quality Agency were observed. Because the project was too small for the other impacts, only one impact was found related to those criteria to reach those thresholds: that on dust generation primarily during construction. An impact mitigation program was recommended to deal with that. Ms. Mundie continued that Section D, the second lazge section of Chapter 4, is biology. It includes a series of graphics showing biological resources associated with the site, among them ponds, wetlands, plant communities, and substantial wooded azeas on the site. There aze approximately 12,000 trees on this site at the present time, and about 950 trees would be removed of which about 90 would be trees that meet Pleasanton's heritage tree standards. She noted that the ponds aze potential breeding habitats for the California Red-Legged Frog, which, together with the Califomia Tiger Salamander, has been found on the site in association with these ponds. In addition, a certain plant called the Johnny Jump-up, or the viola cornuta, grows in the azea. This plant serves as the host plant for the Callippe Silverspot butterfly in its larval stage, so these plant azeas aze a very important part of the life cycle of that endangered species and an important biological resource of the site. Ms. Mundie noted that the biological section found ten biological resources and proposed extensive mitigations for all of them, which aze reported in the Draft EIR. Chairperson Arkin inquired how the biological assessment was done and if the consultants did the assessment themselves or hired someone to do it. 12