2_Exhibits A-E - Laserfiche WebLink

Arborist Report. May 8, 2021. HortScience, Inc. 535 Sycamore Road. Davasam and Chekka. Page 4 No other species was represented by more than three trees. Included in this group were:  Bailey’s acacia #157 and 160 were 22-inches and 8-inches respectively. Both trees were in poor condition.  Calif. black walnut #152 was 34-inches and in good condition. Numerous stems arose at 7-feet above grade resulting in a round form.  Coast live oak #151 had trunks of 13 and 11-inches. It was in fair condition with poor structure.  Elderberry #86 was a large multi-stem shrub that was partly suppressed by an adjacent coast redwood. Overall condition was fair.  English walnut #50 was a semi-mature tree with stems of 8- and 7-inches. Tree condition was good.  Italian cypress #164 was typical of the species, in excellent condition with a narrow columnar form.  Mexican fan palm #51, 53, and 77 were in excellent condition with between 30- and 45-feet of brown trunk.  Pecan #69 was 15-inches and in fair condition. Crown development was constrained by crowded growing conditions.  Plum #62 was 6-inches and in poor condition. The City of Pleasanton defines a Heritage trees as having a trunk diameter of 18-inch or greater or a height of 35-feet or more. For trees with more than one stem, trunk diameter is determined by adding together the two largest stems. Using these criteria, 37 trees qualified as Heritage. Descriptions of each tree are found in the Tree Assessment Form and locations are shown on the Tree Assessment Map (see attachments). Suitability for Preservation Trees that are preserved on development sites must be carefully selected to make sure that they may survive development impacts, adapt to a new environment and perform well in the landscape. Our goal is to identify trees that have the potential for long-term health, structural stability and longevity. Evaluation of suitability for preservation considers several factors:  Tree health Healthy, vigorous trees are better able to tolerate impacts such as root injury, demolition of existing structures, changes in soil grade and moisture, and soil compaction than are non-vigorous trees.  Structural integrity Trees with significant amounts of wood decay and other structural defects that cannot be corrected are likely to fail. Such trees should not be preserved in areas where damage to people or property is likely.