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John Miller Architects, Saint Elizabeth Seton Church Tree Report. June 2006 HortScience. Inc. Page 4 . Invasiveness Trees with the potential to invade native habitats, reproduce rapidly, and grow in sub- optimal environments are considered invasive. Species with these qualities may alter the functional and aesthetic qualities of the habitats they invade. Each tree was rated for suitability for preservation based upon its age, health, structural condition and ability to safely coexist within a development environment (Table 2). 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. Table 2: Tree Suitability for Preservation Good These are trees with good health and structural stability that have the potential for longevity at the site. Ten (10) trees were of good suitability for preservation. Tree No. Species Diameter (in.) 171 Deodar cedar 6 172 Deodar cedar 6 173 Deodar cedar 6 174 Deodar cedar 6 175 London plane 6 176 London plane 6 177 Deodar cedar 6 178 Deodar cedar 7 179 Deodar cedar 6 180 Deodar cedar 7 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. One (1) tree was of moderate suitability for preservation. Tree No. Species Diameter (in.) 26.22,14 182 Calif. black walnut 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. One (1) tree was of poor suitability for preservation. Tree No. Species Diameter (in.) 27 181 English walnut