11 ATTACHMENT 04 - Laserfiche WebLink

Tree Preservation Report, 4171 &4189 Stanley Blvd. Ed Brennan, Consulting Arborist January 9, 2009 Page 2 Description of Trees Twenty-three (23)trees were evaluated. Descriptions of each tree are found in the Tree Survey and locations are plotted on the Tree Survey Map(see Attachments). A summary is provided in Table 1. There were 13 tree species growing on the site. Three (3) of these, California black walnut, coast live oak, and valley oak, are native to the area. The tree population is visually dominated by a row of three(3) Deodar cedar trees that grow in an island in the driveway. These are large, mature trees and are in good condition. Walnut trees, both English and California black, were the most numerous on the site. They appear to be the remains of an orchard. All were in fair or poor condition. They were English walnuts grafted to California black walnut rootstocks. I some cases the English walnut portion had died, while the rootstalk sprouted and kept growing. Two trees, #69 (valley oak) and #70 (Calif black walnut)grow near the property border on the adjoining property to the north. The remaining trees were part of the home's landscaping or for domestic fruit production. Table 1: Condition ratings and frequency of occurrence of trees. Common Name Scientific Name Condition Rating No. of Poor Fair Good Trees (1-2) (3) (4-5) Deodar cedar Cedrus deodara 0 0 3 3 Orange Citrus sinensis 0 0 1 1 Rangpur lime Citrus X limonia 0 1 0 1 Calif. black walnut Juglans hindsii 1 4 0 5 English walnut Juglans regia 2 1 0 3 Glossy privet Ligustrum lucidum 0 1 1 2 Fruitless mulberry Morus alba 1 0 0 1 Canary Isl. date palm Phoenix canariensis 0 0 1 1 Italian stone pine Pinus pinea 0 1 0 1 Almond Pmnus dulcis 0 0 2 2 Douglas fir Pseudotsuga menziesii 0 0 1 1 Coast live oak Quercus agrifolia 0 1 0 1 Valley oak Quercus lobate 0 0 1 1 Total 4 9 10 23 17% 39% 43% 100% Heritage Trees Pleasanton's Tree Ordinance defines Heritage Trees as those with a trunk of 55 inches or greater in circumference (approximately 18 inches in diameter), or 35 feet in height. Twelve (12)trees met the size critera (Table 2).