11 ATTACHMENT 04 - Laserfiche WebLink

Tree Preservation Report, 4171 &4189 Stanley Blvd. Ed Brennan, Consulting Arborist January 9, 2009 Page 1 Introduction and Overview Camp & Camp Associates. is assisting in the planning of 4171 &4189 Stanley Boulevard in Pleasanton. There is currently one single-family home on the site. The proposed project would construct 14 homes. Ed Brennan, Consulting Arborist, was asked to prepare a Tree Report for the project for review by the City of Pleasanton. This report provides the following information: 1. A survey of trees currently growing on the site. 2. An evaluation of each tree's suitability for preservation. 3. An assessment of the impacts of constructing the proposed project on the trees. 4. An appraisal of the value of the trees growing on The site. 5. Guidelines for preserving selected trees during development. Survey Methods Trees were surveyed on December 18, 2008. The survey included trees greater than six inches in diameter. The survey procedure consisted of the following steps: 1. Identifying the tree as to species; 2. Tagging ea:h tree with an identifying number and recording its location on a map; 3. Measuring the trunk diameter at a point 54" aoove grade; 4. Evaluating the health and structural condition using a scale of 1 —5: 5-A healthy, vigorous tree, reasonably free of signs and symptoms of disease, with good structure and form typical of the species. 4-Tree with slight decline in vigor, small amount of twig dieback, minor structural defects that could be corrected. 3-Tree with moderate vigor, moderate twig and small branch dieback, thinning of crown, poor leaf color, moderate structural defects that might be mitigated with regular care. 2-Tree in decline, epicormic growth, extensive dieback of medium to large branches, significant structural defects that cannot be abated. 1 -Tree in severe decline, dieback of scaffold branches and/or trunk; most of foliage from epicormics; extensive structural defects that cannot be abated. 5. Rating the suitability for preservation as "good", "moderate" or"poor". Suitability for preservation considers the health, age arid structural condition of the tree, and its ootential to remain an asset to the sib for years to come. Good: Trees with good health and structural stability that have the potential for longevity at the site. Moderate: Trees with somewhat declining health and/or structural defects than can be abated with treatment. The tree will require more intense management and monitoring, and may have shorter life span than those in 'good' category. Poor. Tree in poor health or with significant structural defects that cannot De mitigated. Tree is expected to continue to decline, regardless of treatment. The species or individual may have characteristics that are undesirable for landscapes, and generally are unsuited for use areas.