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Tree Report, 218 Ray Street, Pleasanton Ed Brennan, Consulting Arborist
<br /> February 12, 2020 Page 2
<br /> Description of Trees
<br /> Seven (7)trees were evaluated. Descriptions of each tree are found in the Tree Survey and
<br /> locations are plotted on the Tree Survey Map (see Attachments). A summary is provided in
<br /> Table 1.
<br /> Three tree species were present among the seven surveyed trees. Bradford pear had the
<br /> largest representation with five trees,which form a row on the west side of the parking lot.
<br /> Three were in in fair condition, while two were in good condition.
<br /> The other two trees were growing off-site on the shopping center property to the east. They
<br /> were included because their crowns encroach on the site. One was a valley oak, the other a
<br /> pecan. Both were in good condition.
<br /> None of the trees growing on the site was in poor condition.
<br /> The valley oak was the only tree of a native species, the others were planted exotics.
<br /> Table 1: Condition ratings and frequency of occurrence of trees.
<br /> Common Name Scientific Name Condition Rating No.of
<br /> Poor Fair Good Trees
<br /> (1-2) (3) (4-5)
<br /> Pecan Carya illinoensis 0 0 1 1
<br /> Bradford pear Pyrus calleryana 0 3 2 5
<br /> Valley oak Quercus lobata 0 0 1 1
<br /> Total 0 3 4 7
<br /> 0% 43% 57% 100%
<br /> Heritage Trees
<br /> Pleasanton's Tree Ordinance defines Heritage Trees as those that meet certain size
<br /> parameters, regardless of species or condition. To qualify a tree must have a trunk of at least
<br /> 55 inches in circumference (17.5 inches in diameter)or have a height of 35 feet or greater.
<br /> One of the surveyed trees met the size criteria to be classified as a Heritage Trees,tree#5,
<br /> the pecan.
<br /> Tree Dripline Measurements
<br /> Pleasanton's Tree Ordinance requires that tree driplines be measured, reported, and drawn
<br /> to scale on a site map. Driplines were measured to the nearest foot in the cardinal directions
<br /> (north, south, east, and west). Dripline measurements are shown in Table 3 below.
<br /> be abated.
<br /> 0—Tree is dead
<br /> 6. Rating the suitability for preservation as"good", "moderate"or"poor". Suitability
<br /> for preservation considers the health, age and structural condition of the tree,
<br /> and its potential to remain an asset to the site for years to come.
<br /> Good: Trees with good health and structural stability that have the
<br /> potential for longevity at the site.
<br /> Moderate: Trees with somewhat declining health and/or structural defects
<br /> than can be abated with treatment. The tree will require more
<br /> intense management and monitoring, and may have shorter life
<br /> span than those in `good' category.
<br /> Poor. Tree in poor health or with significant structural defects that
<br /> cannot be mitigated. Tree is expected to continue to decline,
<br /> regardless of treatment. The species or individual may have
<br /> characteristics that are undesirable for landscapes, and
<br /> generally are unsuited for use areas.
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