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Tree Report, Trinity Lutheran Church HortScience, Inc. WMB Architects, June 2006 Page 5 Table 2: Tree Suitability for Preservation, continued Moderate Trees in this category have fair health and/or structural defects that may be abated with treatment. Trees in this category require more intense management and monitoring, and may have shorter life-spans than those in the "good" category. Seven (7) on-site trees were of moderate suitability for preservation. Tree No. Species Diameter 259 Deodarcedar 19,18 437 Hackberry 6,5,4,4,4,3,3,3 441 English walnut 6,5,5,4 443 Glossy-leaf privet 7,7,6,3 448 London plane 22 453 Arroyo willow 19 456 Almond 6,5,4 Poor Trees in this category are in poor health or have significant defects in structure that cannot be abated with treatment. These trees can be expected to decline regardless of management. The species or individual tree may possess either characteristics that are undesirable in landscape settings or be unsuited for use areas. Two (2) on-site trees were of poor suitability for preservation. Tree No. Species Diameter (in.) 435 Sweet gum 7 454 Almond 9,8,7,7,6,6,5 We consider trees with good suitability for preservation to be the best candidates for preservation. We do not recommend retention of trees with low suitability for preservation in areas where people or property will be present. Retention of trees with moderate suitability for preservation depends upon the intensity of proposed site changes. Evaluation of Impacts and Recommendations for Preservation Appropriate tree retention develops a practical match between the location and intensity of construction activities and the quality and health of trees. The Tree Survey was the reference point for tree condition and quality. Potential impacts from construction were evaluated using the Grading plan (Alexander and Associates, 2/21/06). The plans showed the location of the existing and proposed buildings, existing and proposed parking lots, grading and utility information. Tree trunk locations and approximate driplines were also present on the plan. The proposed project would construct a new ministry center, add a new youth center to the existing church building, install new parking lots and reconfigure existing parking lots, and add bioswales for storm water retention. The most significant impacts to trees would be associated with construction of the new ministry and youth centers. Potential impacts from construction were estimated for each tree. Construction of the ministry and youth center buildings will require the removal of eight (8) trees (Table 3), none of which qualify as 'Heritage trees'.