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<br /> Preliminary Arborist Report. Ponderosa Homes HortScience,Inc.
<br /> Valley Trails,Pleasanton Page 2
<br /> Description of Trees
<br /> Twenty-five(25)trees,representing 7 species,were assessed. Included in this group were 11 off-
<br /> site trees with portions of their canopies extending onto the development site(#235-242,244,245
<br /> and 247312,313.317 and 318)and two that appeared to be on the property line(#234 and 243).
<br /> Descriptions of each tree are found In the Tree Assessment Form and locations are shown on the
<br /> Tree Assessment Map(see attachments).
<br /> Trees at the site were located as follows:
<br /> • Eleven coast redwoods(#223.233)had been planted around the parking lot and church
<br /> building on the western half of the site.
<br /> • The remaining 14 trees were located around the perimeter and included the 11 off-site
<br /> trees(#235-242,244,245 and 247312,313,317 and 318),the two that appeared to be on
<br /> the property line(#234 and 243)and on-site tree#246.
<br /> Twelve(12)coast redwoods were •----
<br /> assessed at the site representing 48%of
<br /> the population(Table 1,following page). ,' - ,_
<br /> Included in this group were 11 that had '-:; ,
<br /> been planted in the landscape areas west ` ' 1
<br /> of the parking lot and surrounding the y,■church building,and one(#244)that was i,'. _
<br /> just off-site to the east. They were semi- - _.,,,,,,I.„4,•, rw
<br /> mature in form and development,with °-V - . >
<br /> trunk diameters between 12 and 22". ./ ,
<br /> Nine(9)had diameters between 14 and w•
<br /> 16". They all had good form and ',
<br /> structure,but condition varied. Eight(8) ,a• ,
<br /> were in fair condition,two(2)in poor, and
<br /> two(2)in good.Most had dieback and
<br /> thinning of canopies,indicative of drought ,, • •
<br /> stress. The one exception to this was " -�-
<br /> coast redwood#228,which was ir -
<br /> benefiting from excess soil moisture ' r,
<br /> associated with a nearby leaking pipe ;Y,i .mow. , • �',
<br /> a;—
<br /> (Photo 1). Coast redwoods planted - �- -- ' . .
<br /> outside their native range can be ''.. t `t ` '
<br /> t �
<br /> `' ;'r ten ,' "0-. o u '17'
<br /> expected to show drought-related stress,
<br /> such as foliar dieback,unless regularly Photo 1:Looking south at coast redwoods#228(1)
<br /> irrigated. and#229-231(background R).There was a
<br /> noticeable difference between the canopy density of
<br /> Six(6)callery pears and three(3)London tree#226 and the other redwoods assessed at the
<br /> planes were assessed at the site. Five of site.I attributed the difference to increased soil
<br /> the callery pears(#235-238,and 242) moisture associated with a leaking pipe next to tree
<br /> and the three London planes(#239-241) #228.
<br /> were located off-site between the trail and
<br /> the southern property boundary. These trees were all young,with diameters between 7"and 11".
<br /> Callery pear#243 was located on the eastern property line and was semi-mature at 16". Five (5)of
<br /> the callery pears and the three London planes were in good condition and callery pear#242 was in
<br /> fair. Most of these trees had good,upright forms as a result of having been planted in close
<br /> proximity to one another.
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