10385 Bandley Drive - Arborist Report WOOD
ARCHITECTURE
December 16, 2021 D E S I G N.C ON S U LT ING.M AN AGE MEN
Community Development Department 10300 Torre Avenue Cupertino, CA 95014
SUBJECT: ARBORIST REPORT FOR PROPERTY AT: 10385 Bandley Drive, Cupertino, CA 95014
This arborist report includes the observations and assessment of the two protected Callery pear
trees growing around the building and located within the foot print of proposed sewer
renovation. The site was visited on Wednesday June 23, 2021.
Assignment: Review two Callery Pear trees growing at Bandley 8, BA08, 10385 Bandley Drive.
The trees are located directly adjacent to an existing sewer line that will be replaced. The work
to be done is under building permit number BLD-2021-0901.
The assignment requires the following activities: visit the site, verify the trees, list the tree
species, diameters, crown radius, condition of the trees, impacts to the property, and
mitigation options.
Observations: The site was visited on Wednesday,June 23, 2021 at about 11:00 am. The trees
were not tagged with numbers, though Treeplotter was used for identification and history.
The tools used were a diameter tape, screwdriver as a probe, hammer, nails, zip ties and tree
tags. Crown height and radius were estimated. Two trees listed on the map were measured for
trunk diameter at approximately 4.5 feet above grade with a diameter tape. Trees were
assessed and rated for health and structure, and overall condition considering branch structure,
decay, leaf quality, vitality, dieback, lean, and other issues that affect the condition of the trees.
The tree health condition rating was determined by observing the tree foliage, twig growth, leaf
density, and dead branches. The structure rating was determined by observing branch
attachment, crotch structure, trunk flare, surface roots, decay, insects and diseases, growth
habit, and any physical damages. The overall condition combines the health and the structure
ratings, based on the most significant conditions present.
The rating system used for both health, structure, and overall condition is:
(0) 0% dead;
(1) 1-20% very poor/severe decline;
(2) 21-40%poor/declining;
(3) 41-60% fair;
(4) 61-80% good; and
(5) 81-100% excellent.
The matrix below shows the data found during the site inspection.
Tree Trunk Dia- Condi-
# Species meter Height Crown tion
Inches Feet Radius Comments
Feet
Tree is healthy and good structure.
Callery
29 Pyr ana S 10 W 10 11 24' N 10 E 10 5 Tree is located in footprint of
planned development.
Pyrus 5 Tree is healthy and good structure.
30 Caleryana 9.5 18' N8W88S8 Tree is located in footprint of
planned development.
Discussion: The property is Bandley 8 (BA08) 10385 Bandley Road, Cupertino, CA 95014. The
two trees assessed are located on the East facade of the property facing Bandley Road.
The two pear trees are located within the footprint of a proposed sewer line
renovation/replacement.
Conclusion: The two pear trees will not likely survive the construction impacts. It is our belief
that these should be removed. Sewer line replacement necessitates the removal of the two
pear trees. Please see attached building plan showing proposed impacts in relation to tree's
location.
Mitigation: Plant two 24" box Crape Myrtle trees to mitigate for the loss of the two removed
Evergreen Pear trees. Callery pears are not suitable species they have fallen out of favor as an
urban tree for fire blight, mistletoe, problematic structurally (tend to break), market availability
is low as they are known to be a problematic species and it's cultivars. We are using Crape
Myrtles to be consistent with the design intent of the site. Planning on replacing in same
location with a Crape Myrtle tree that is smaller and not as aggressive roots, the new sewer line
will be modern ABS pipe and be less prone to leaking and root invasion. Please contact me at
415.792.9082 or email deva@iwoodarchitecture.com, if you have any questions about this
report. Respectfully submitted,
Deva Braden
Certified Arborist WE7034A
showingPicture 1 Pe Tree #29.
OK
Picture 2
s.
showingother Callery Pear Tree #30.
Nb
Picture 3 showing Tree Removal Map.
IL
Tree Removal Map for 10385 Bandley Drive
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Ex+sting two pear trees to be removed
Picture 4 showing Tree Replacement Map.
Tree Replacement Map for 10385 Ban dley Drive J
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Existing two pear trees to be replaced `
with 2 x 24"' box Crape Myrtles.
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