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Tree Report, Trinity Lutheran Church HortScience, Inc. WMB Architects, June 2006 Page 1 Introduction and Overview WMB has designed the proposed additions and parking lot expansions at the Trinity Lutheran Church in Pleasanton. The plans propose to construct new ministry and youth centers, a new parking lot and reconfigure existing parking lots. HortScience, Inc. was asked to prepare a Tree Report for the trees potentially impacted by the proposed changes. This report provides the following information: 1. An evaluation of the health and structural condition of the trees from a visual inspection. 2. An evaluation of the impacts of the proposed development on the trees. 3. The appraised value of all trees, using the techniques described in the Guide for Plant Appraisal, 9N edition (Champaign IL 2000, International Society of Arboriculture). 4. Recommendations for tree preservation and protection during construction. Survey Methods Trees were surveyed On May 9, 2006. The survey included all trees greater than 6" in diameter and consisted of the following steps: 1. Identifying the tree as to species. 2. Tagging each tree with an identifying number and recording its location on a map. 3. Measuring the trunk diameter at a point 54" above 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 and structural condition of the tree species, and its potential to remain an asset to the site 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. Trees in poor health or with significant structural defects that cannot be mitigated. Tree is expected to continue to decline, regardless of treatment. The species or individual tree may have characteristics that are undesirable for landscapes, and generally are unsuited for use areas.