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DRAFT Arborist Report—Chashmawala Residence HortScience I Bartlett Consulting
<br /> 4108 Foothill Road, Pleasanton Page 5
<br /> Based on my review of the plans, trees#33 and 36 would be within the new residence or
<br /> impacted by the proposed changes, requiring their removal (Table 3). Both trees#33 and 36
<br /> qualified as Heritage.
<br /> Ten (10)of the trees can be preserved, all of which would be from 25' to 50'from the proposed
<br /> trenching or grading. All 10 of the trees identified for preservation qualified as Heritage trees.
<br /> Preservation of trees is predicated on the adhering to the recommendations provided in the Tree
<br /> Preservation Guidelines(following page).
<br /> Establishing a Tree Protection Zone (TPZ) around trees identified for preservation prior to the
<br /> initiating any demolition, grading or construction processed will be critical to protecting roots and
<br /> successfully preserving trees
<br /> Table 3: Recommendations for Action
<br /> 4108 Foothill Road, Pleasanton, CA.
<br /> Tree# Species Diameter Heritage Recommendations
<br /> 18 Valley oak 26" Yes Preserve, 30'from grading, 45'from
<br /> trenching
<br /> 19 Coast live oak 37" Yes Preserve, 40'from grading &trenching
<br /> 20 Coast live oak 56" Yes Preserve, 50'from grading &trenching
<br /> 21 Valley oak 27" Yes Preserve, 35'from grading &trenching
<br /> 27 Valley oak 43" Yes Preserve, outside impacts
<br /> 31 Valley oak 24" Yes Preserve, 35'from grading &trenching
<br /> 32 Valley oak 32" Yes Preserve, 30'from grading, 25'from
<br /> trenching
<br /> 33 Valley oak 32" Yes Remove, within building
<br /> 34 Valley oak 31" Yes Preserve, 35'-40'from ret. wall
<br /> 36 Valley oak 25" Yes Remove, impacted by building/ret. wall
<br /> 38 Valley oak 34" Yes Preserve, 30'from grading/bldg.
<br /> 39 Valley oak 33" Yes Preserve, 40'from grading, 45'from
<br /> trenching
<br /> Estimated Value of Trees
<br /> The City of Pleasanton requires the value be established of all the trees. To accomplish this we
<br /> used the standard methods found in Guide for Plant Appraisal, 9th edition (published in 2000 by
<br /> the International Society of Arboriculture, Champaign IL). In addition, we referred to Species
<br /> Classification and Group Assignment(2004), a publication of the Western Chapter of the
<br /> International Society of Arboriculture. These two documents outline the methods employed in tree
<br /> appraisal.
<br /> The value of landscape trees is based upon four factors: size, species, condition and location.
<br /> Size is measured as trunk diameter, normally 54"above grade. A multi-branched tree, which has
<br /> major branches below 54" above the natural grade, is measured just below the first major trunk
<br /> fork. The species factor considers the adaptability and appropriateness of the plant in the Bay
<br /> area. The Species Classification and Group Assignment lists recommended species ratings and
<br /> evaluations. Condition reflects the health and structural integrity of the individual, as noted in the
<br /> Tree Assessment Form. Location considers the site, placement, and contribution of the tree in its
<br /> surrounding landscape. In this case, although the site is located in a desireable residential area of
<br /> Pleasanton, the trees are growing on an undeveloped lot,which affects the site and contribution
<br /> ratings.
<br /> Page 11 of 12
<br /> Planning Commission
<br /> Page 6 of 12
<br />neer;
<br /> b. Show construction vehicles and equipment parking area, materials storage, temporary
<br /> fencing, construction trailer location, and construction contractors/workers parking
<br /> area.
<br /> P19-0059 Planning Commission
<br /> Page 5of12
<br />-0059 Planning Commission
<br /> Page 4 of 12
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<br /> , i i July 30,2019
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