17 ATTACHMENT 03 - Laserfiche WebLink

Tree Report, Vineyard Gardens, LLC, Pleasanton, CA HortScience, Inc. December 10, 2007 Page 2 Description of Trees Thirty (30) trees were evaluated, representing eight (8) species (see Table 1, next page). Four (4) offsite trees located west of the project site were included in the survey. Descriptions of each tree are found in the Tree Survey Forms and locations are shown on the Tree Survey Map (see attachments). Five trees, (coast redwoods #284 & 285, English walnuts #271 & 288, and black locust #263) met the City's criteria as a "Heritage tree". The most frequently occurring species was English walnut with 16 trees (53%). Almond was represented by 6 trees each (20%). The remaining six species were represented by two or fewer trees. Trunk diameter ranged from 6" to 31"for single-trunked trees. All of the trees were planted exotics. None were indigenous to the site. English walnuts were located north and west of the existing house in an orchard planting. The walnuts were young to semi-mature in character. Six (6) walnuts in fair condition had good form, multiple attachments, branch dieback and decay in pruning wounds. Ten (10) in poor condition trees were characterized by declining health, extensive dieback and trunk decay (photo 1). Trees #268 and 269 were dead. The six (6) almonds in the orchard varied from good to poor condition. Two (2) trees in good health had good form and structure, and a full crown. Three (3) that were fair had defects in structure such as poor branch structure, included bark, partial root failure or trunk wounds. Black locust #262 was located east of the exiting driveway. The locust had a 25" diameter trunk. It had good form but was in poor health. The tree was in decline, with significant branch dieback and decay in the trunk. Support cables were installed in the canopy long ago to provide supplemental support to branch attachments with included bark. Coast redwoods #284 & 285 and Chinese hackberries #272 8~ 275 were located offsite west of the proposed project (photo 2). Redwood #284 and the hackberries were in good condition. The redwood had excellent form and structure. The hackberries had good form and full crowns. Redwood #285 was in fair health with a thin crown, irregular form and needles pale in color. Photo 2: Coast redwood #285 in excellent condition. Redwood #284 in fair health with a thin crown. Photo 1: English walnut #288 is an example of walnuts in poor health with extensive dieback.