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. Horticultural Consultants hr~D HORT~~~,"c /~~, .t October 3, 2006 . Stephanie Allen John Miller Architects 100 View St, Suite 203 Mountain View, CA 94041 Subject: Tree Appraisal for Saint Elizabeth Seton Church Stephanie, As part of the development application process, the City of Pleasanton requested the appraised value of all the trees surveyed at Saint Elizabeth Seton Church site. This letter responds to that request HortScience, Inc. prepared a Tree Report for the site dated June 28, 2006. Included in the Tree Report were the appraised values of tree #181 (the only 'Heritage' tree recommended for removal) and tree #182 (the only surveyed tree recommended for preservation), In appraising the value of the plants in this area, I employed the standard methods found in Guide for Plant Appmlsa/, 9th edition (International Society of Arboriculture, Savoy IL, 2000), In addition, I referred to Species Classification and Group Assignment (2004), a publication of the Western Chapter of the International Society of Arboriculture. 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, The species factor considers the adaptability and appropriateness of the plant in the inland valleys of the East Bay area, The Species Classification and Group Assignment lists recommended species ratings. Condition reflects the health and structural integrity of the individual. I used our 2004 Tree Survey as the basis for assessing existing condition, The location factor considers the site, placement and contribution of the tree in its surrounding landscape. The appraised value of the 10 trees not included in the June 2006 Tree Report is $7,400 (Table.t, following page), These are non-heritage trees recommended for removal, . I'{] Box 7'i"1 rle;l;~ ,I n:IJfI. :,:,\ l1.') 'j6iJ i)110nf':';2') 18.1021] fAY 'i2'; iil-1- ~1J~ii ','iwwhmlSGlr,nr.p,_'ilr