15 ATTACHMENT 9 - Laserfiche WebLink

i 1 Dan Sarich Sarich Property Tree Preservation HortScience, Inc. Page 6 Appraisal of Value The City of Pleasanton requires that the value of trees to be preserved during development be established. In the case of the Sarich property, many of the preserved trees are in areas where development activities are not planned. Only the trees in proximity to grading or construction were appraised. Forty-three (43) trees were identified as being in proximity to development activities. In appraising the trees, I employed the standard methods found in Guide for Plant Appraisal, 8th edition (published in 1992 by the International Society of Arboriculture, Savoy IL). In addition, I referred to Species Classification and Group Assignment (1993), a publication of the Western Chapter of the International Society of Arboricultu,~e. These two documents outline the methods employed in tree appraisal. The value of landscape trees is based upon four factors: size, species, condition and location. Size is measured as trunk diameter, normally 54" above grade. Where trees were cut off at ground level, I measured the diameter at this point and then estimated the trunk diameter at 54" above grade. The species factor considers the adaptability and appropriateness of the plant in the East Bay area. The Species Classification and Group Assignment lists recommended species ratings and evaluations. Condition reflects the health and structural integrity of the individual. The location factor considers the site, placement and contribution of the tree in its surrounding landscape. The total of the appraised values of the 42 trees recommended for preservation was $173,850 (see Table 3). Table 3: Trees recommended for preservation, in proximity to development, on the Sarich Property and their appraised values Tree No. Species Trunk diameter Appraised {inches) value _ 1 Silver dollar gum 17 $2,750 3 Silver dollar gum 14,13 $3,450 6 Valley oak 21 $5,250 7 ~ Blue oak 24,16 $7,500 13 Blue oak 31 $8,450 14 Blue oak 27 $8,450 19 Blue oak 26 $7,900 20 Blue oak 15 $2,200 21 Blue oak 22 $5,750 79 Blue oak 23 $4,850 80 Blue oak 13 $1,700 81 Blue oak 11,9,9 $2,600 82 Blue oak 23,17 $7,350 83 Blue oak 17 $3,550 84 Blue oak 24 $5,250 89 Blue oak ~ 30 $10,400 96 Blue oak 12 $1,950 101 Blue oak 14 $1,950 102 Blue oak 18 $3,050 103 Blue oak 32 $11,550 (continued on next page) J