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Arborist Report—Gudaitis Residence, Pleasanton Page 3
<br /> January 19, 2021
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<br /> Photo 1 —Coast redwoods#75-84 were off site, behind wall separating the property to
<br /> the west. Note overhanging branches into the site (various lengths noted in the Tree
<br /> Assessment).
<br /> trees), and two were in poor condition;they ranged in diameter from 10 to 45 inches (Photos 1 and
<br /> 5).
<br /> Evergreen ash was the next most prevalent species, with eight trees (about 20% of the
<br /> population). The ash trees were growing in a line along the south side of the property, planted in
<br /> an alternating pattern with the blackwood acacias (see below). The ashes ranged from fair
<br /> condition (5 trees)to poor condition (3 trees), with diameters ranging from 6 to 12 inches (Photo
<br /> 2).
<br /> Seven blackwood acacias were assessed (about 17% of population). Almost all of the acacias (6
<br /> trees)were in poor condition, with only tree#53 in fair condition. They ranged from 10 to 17
<br /> inches in diameter, and many were leaning, with heavy lateral branches and their crowns weighted
<br /> to one side (Photo 2).
<br /> '`'"' Photo 2 (left) —Trees
<br /> #55-50 (left to right) had
<br /> been planted in an
<br /> alternating pattern of
<br /> a. .. blackwood acacia
<br /> 4.1 ,
<br /> (#55,53,51)and evergreen
<br /> ash (54,52,50).
<br /> 4" - -x • „, , ;I• Four coast live oaks were evaluated,
<br /> .. ,,,*,. - •-. * two of them off site (Trees#67 and
<br /> • 89). Tree#67 was semi-mature
<br /> (approximately 18 inches in
<br /> diameter), in very good condition. Some of its branches to the south overhung the subject
<br />- - 3 1 4
<br /> Valley oak Quercus lobata - - 1 1 2
<br /> Coast redwood Sequoia sempervirens - 2 - 12 14
<br /> Total 1 13 12 15 41
<br /> The project site contained tree species common to many Bay Area residential landscapes and
<br /> streets, particularly in the Tri-Valley area, and included a few fruit trees. The most common trees
<br /> in the project vicinity were coast redwoods, all but one of them off site. There were 14 redwoods,
<br /> which made up about 34% of the population. Most of the redwoods were in good condition (12
<br /> -iortScience I Bartlett Consulting. Divisions of The F.A Bartlett Tree Expert Company
<br />high", "moderate" or"low". Suitability for
<br /> preservation considers the health, age and structural condition of the tree, and its
<br /> potential to remain an asset to the site for years to come.
<br /> High: Trees with good health and structural stability that have the potential
<br /> for longevity at the site.
<br /> Moderate: Trees with somewhat declining health and/or structural defects that
<br /> can be abated with treatment. The tree will require more intense
<br /> HortScience I Bartlett Consulting • Divisions of The F.A. Bartlett Tree Expert Company
<br /> 325 Ray St.Pleasanton, CA 925.484.0211 • www.hortscience.com
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