5_Exhibits A-C - Laserfiche WebLink

Updated Arborist Report HortScience I Bartlett Consulting Sarvana Chilla, 3987 Stanley Page 7 Considering the four factors noted above, I established the value of the eight trees recommended for removal at$8,200(Table 3). The appraised value for eleven trees to be retained was $91,850 (Table 4). Table 3. Appraised value of trees identified for removal 3987 Stanley Pleasanton, CA Tree Trunk Heritage Appraised .) No. Species Diameter jTree? Value 2 Italian alder 7,8,8 No 700 3 Sweetgum 8 No 1050 4 Plum 3,3,2,2,1,1,1 No 100 5 Lemon 3,3,2,1 No 350 6 Plum 10,10 Yes 2050 7 Windmill palm 10 No 1400 8 Windmill palm 9 No 1150 9 Windmill palm 10 No 1400 $8,200 Table 4. Appraised value of trees identified for preservation 3987 Stanley Pleasanton, CA Tree Trunk Heritage Appraised No. .) Species Diameter jTree? Value 1 Crape myrtle 7 No 450 10 Glossy privet 3,3,3,3 2,2,1 No 100 11 Windmill palm 10 No 950 12 Windmill palm 10 No 950 13 Windmill palm 10 No 950 14 Windmill palm 10 No 950 15 Windmill palm 8 No 800 16 Plum 5,5 No 350 17 Valley oak 36 Yes 34750 18 Valley oak 38 Yes 48750 19 California black walnut 17,12 Yes 2850 $91,850 • Following the recommendations, including the utilization of the biaxial Geogrid under the gravel on the driveway to the west of the tree will allow for preservation of valley oak#18, which qualifies as a Heritage tree. • Approach the neighbors about the future plans for off-site tree#1. This tree need to be protected against impacts from construction equipment and the new driveway. Preservation is recommended for nine trees, including two off-site trees (#17 and 19). These two trees (#17 and 19) qualify as Heritage trees. Trees recommended for preservation are located along the perimeter of the site or on the edges of the building envelopes. In summary, a total of eleven trees (#1, 10- 18 and 19)can be retained and two are Heritage trees. One valley oak tree (#18) is a Heritage tree. Eight trees are within impacts and will need to be removed. One of the trees to be removed (#6) is a Heritage tree. Specific preservation requirements are provided in the Tree Preservation Guidelines. Appraisal of Value The City of Pleasanton requires that the value of trees to be preserved during construction be established and included as part of an Arborist Report. To establish the value of the trees, I employed the standard methods found in Guide for Plant Appraisal, 9th edition (published in 2000 by the International Society of Arboriculture, Savoy IL). In addition, I referred to Species Classification and Group Assignment(2004), a publication of the Western Chapter of the International Society of Arboriculture. These two documents outline the methods employed in tree appraisal. The value of landscape trees is based upon four factors: size, species, condition and location. Size is measured as trunk diameter, normally 54"above grade. The species factor considers the adaptability and appropriateness of the plant in the East Bay. The Species Classification and Group Assignment lists recommended species ratings and evaluations. Condition reflects the health and structural integrity of the tree at the time of my inspection. The location factor considers the site, placement and contribution of the tree in its surrounding landscape.