18 ATTACHMENT 09 - Laserfiche WebLink

Arborist Report. Revised February 1,2017. HortScience, Inc The Village at Valley Trails. Ponderosa Homes Page 2 Description of Trees Thirty-eight(38)trees were assessed,representing 8 species(Table 1). Species present were typical of those found in landscapes in the Pleasanton area. Trees were likely planted when the site was first developed. Coast live oak is native to the Pleasanton area and it is possible that tree#234 was indigenous to the site. Table 1. Species present and tree condition. The Village at Valley Trails. Pleasanton CA. Common Name Scientific Name Condition Rating No.of Poor Fair Good trees (1-2) (3) (4-5) Silver maple Acer saccharinum - 1 - 1 Sweetgum Liquidambarstyraciflua - 12 1 13 London plane Plalanus x hispanica - - 3 3 Caltery pear Pyrus calleryana - 1 5 6 Coast live oak Quercus agrifolia - - 1 1 Calif.pepper Schinus mole - - 1 1 Coast redwood Sequoia sempervirens 2 8 2 12 Chinese elm Ulmus parvifolia - - 1 1 Total 2 22 14 38 Sweetgum was the most frequently occurring species with . c �',7'rg 13 trees. All were located in a 5' a3jt' ..∎•rffr r•to 6'wide planting strip between �� is t'K�' ;rl,'3,' Valley Trails Drive and the t •I „ p,ti � adjacent sidewalk(Photo 1). Ir.." 4is%r , f�f'`�\ 1 '��", '' Trees were semi-mature in .- p �+ I 4 � -s,•"-,..;.•. development with trunk diameters ( "�+,6;,-; �i ,f�► �'- between 6"and 15". M l /0,4,4,1'---,:r,, to•, -'' yb, ate ,l Photo 1. Sweetgums#248, 249 '..` 'Ili ....... •,• • ,a and 250. _.,_.. i*" Tree condition was fair with the exception of sweetgum#252 which was good. Trees had 2 or more stems that arose low in the crown. Low stems and branches swept upright, often with narrow attachments. Tree vigor was poor throughout,likely due to a lack of summer irrigation Even though the trees were only semi-mature in development.the sidewalk had been displaced in the area of trees#248—252 and replaced near trees #253—260.