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Davidon Homes, July 2007 HortScience, Inc. Tree Report, Woodside Apartments Page 1 Introduction and Overview Davidon Homes is planning to convert an existing apartment complex to condominiums. The property is located at 235 Haas Avenue, in San Leandro. As part of the conversion process, new landscaping will be installed and trees requiring maintenance or removal will be addressed. HortSdence, Inc. was asked to prepare a Tree Management Plan for the site for review by the City of San Leandro. This report provides the following information: 1. An evaluation of the health and structural condition of the trees from a visual inspection. 2. Recommendations for tree maintenance, either pruning or removal. Survey Methods Trees were surveyed on April 20, 2007. All trees with diameters of 6° or greater were included. The survey procedure consisted of the following steps: 1. Identifying the tree as to spe+des; 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 spades. 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 dedine, epicormic growth, extensive diebadc of medium to large branches, signficant structural defects that cannot be abated. i -Tree in severe dedine, diebadc 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 strudx~ral condition of the tree spades, 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 rrronitoring, 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 dedine, .regardless of treatment. The species or individual tree may have characteristics that are undesirable for landscapes, and generally are unsuited for use areas.