Arborist Report Community Development Department
�ti�lilrJl — Cupertino
tUPERTINO APPROVED WOOD
Case# TR-2021-050 (40
Application Number(s) ARCH ITECTU RE
DE SIG N.CON SU LT I NG.M AN AGE ME NT
Approva I BQ6VWrQir06tt0P> E5 fnr ent Department
Approval DIN00 TbWM6nue Cupertino, CA 95014
Signature Catherine Tarone
SUBJECT: ARRQ815TREPORT FOR PROPERTY AT: DA07, De Anza 7, 10345 North De Anza Blvd.
Cupertino, CA 95014
This arborist report includes the observations and assessment of the dead European white birch
tree located along sidewalk south of building. The site was visited on Wednesday October 20th,
2021.
Assignment: Review one dead European white birch tree located at 10345 North De Anza Blvd
Cupertino and managed by Apple Inc.
All site information and history were provided by Jeff Walther, Silicon Valley landscape
manager. The assignment requires the following activities: visit the site, verify the tree, list the
tree species, diameter, crown radius, condition of the tree, impacts to the property, and
mitigation options.
Observations: The site was visited on Wednesday October 2151 at about 1:00 pm. The tree was
not tagged with numbers, though Treeplotter was used for identification and history.
The tools used were a diameter tape, screwdriver as a probe, hammer. Crown height and radius
were estimated. The tree listed on the map was measured for trunk diameter at approximately
4.5 feet above grade with a diameter tape. The tree was 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 tree.
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.
Community Development Department
Planning Division — Cupertino
CUPERTINO APpTO6)Tpa6rix below shows the data found during the site inspection.
Case # 1 ITIR-20-21-05
pplication Number(s I rU
Tree Species Dia- Height Crown Condi- Comments
Approval Bod,#: Director/ Staff meter Feet Radius tion
Approval Date 12/09/21 Inches Feet
Signature Catf erine Tarone
1 CmfMyge1 N 10 Tree is dead.
pendula 8.6 35' E 10 0
S10
W 10
Discussion: The property is DA07 or De Anza 7, 10345 North De Anza Blvd. Cupertino, CA
95014. The European white birch tree assessed is located along the sidewalk amongst the other
birches south of the building.
Conclusion: The European white birch tree is determined to be dead.
Mitigation: Plant a 24" box River Birch, Betula nigra in the same location to mitigate for the loss
of the removed tree.
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
21 Mill St.
San Francisco, CA 94134
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Picture 3 showing Tree Replacement Map for 10345 North De Anza Blvd. Cupertino.
� Tree Replacement Map for 10345 N. De Anza Blvd, Cupertino.
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