TR-2010-26b OFFICE OF COMMUNITY DEVELOPMENT
CITY HALL
10300 TORRE AVENUE • CUPERTINO, CA 95014-3255
C U P E RT 1 N O (408) 777-3308 • FA� (408) 777-3333 • planning�a cupertino.org
September 2, 2010
jason Tan
10540 Wunderlich Drive
Cupertino, Ca. 95014
SUBJECT: TREE REMOVAL PERMIT ACTIOiv LETTER - Application TR-2010-26:
This letter confirms the decision of the D: rector of Community Development, given on
September 2, 2010, approving a tree removal permit to remove and replace one (1) Coast Live
Oak tree, located at 10540 Wunderlich Drive, with the following conditions:
1. APPROVED PROTECT
The approval is based on the Arboi ist report prepared by David Babby of Arbor
Resources, Registered Consulting Arborist #399, dated June 15, 2010 pertaining to the
multi-trunk Coast Live Oak tree, exc�ept as may be amended by conditions in this
resolution.
2. TREE REPLACEMENTS
The applicant shall be required to p1a:1t one (1) 36-inch box size, Deodar Cedar, in the
location identified on the attached pla ns, in accordance with the City's Protected Trees
Ordinance.
3. NOTICE OF FEES, DEDICATIONS, R]?SERVATIONS OR OTHER EXACTIONS
The Conditions of Project Approv�.l set forth herein may include certain fees,
dedication requirements, reservation requirements, and other exactions. Pursuant to
Government Code Section 66020(d) (1), these Conditions constitute written notice of a
statement of the amount of such fees, and a description of the dedications,
reservations, and other exactions. Y ou are hereby further notified that the 90-day
approval period in which you may ��rotest these fees, dedications, reservations, and
other exactions, pursuant to Governm�nt Code Section 66020(a), has begun. If you fail
to file a protest within this 90-day pE�riod complying with all of the requirements of
Section 66020, you will be legally barrE�d from later challenging such exactions.
Staff has made the findings necessary to gr�int the tree removal permit in accordance with
Section 14.18.180 of the Protected Trees Ordinance. Also, please note that an appeal of this
decision can be made within 14 calendar day�� from the date of this letter. If this happens, you
will be notified of a public hearing, which wil _ be scheduled before the Planning Commission.
Sincerely,
� . ��
� Piu Ghosh
Associate Planner
City of Cupertino
ARBOR RESOLIRCES
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City of Cupertino ` L �� i �
103 00 Torre Avenue .�...,� �._ ,
Cupertino, CA 95014-3255 -� ��:� �'���� -
RE: COAST LIVE OAK
10540 Wunderlich Drive, Cupertino
Dear Ms. Ghosh:
You have asked me to evaluate and report on the condition of one coast live oak (Quercus
agrifolia) located in the front yard at the above-referenced site. I visited the site on June
11, 2010, and this report presents my observations, photographs and conclusions.
The subject oak (see photos below) is an estimated 35 feet tall, and has an asymmetrical
canopy that spreads approximately 60 feet across (30 feet is to the north, 30 feet is to the
south, 40 feet is to the west, and 20 feet is to the east). High-voltage electrical lines are
located along the canopy's northern perimeter (along the edge), and due to required and
on-going clearance, will limit future growth of the canopy in that direction.
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p.o. box 25295� san mateo. california 94402 ■ email: arborresources(a�comcast.net
phone: 650.654.335 I ■ fax: 650.240.0777 ■ licensed contractor #796763
ARBOR RESOLIRCES
._ _ �rofessional consult a and tree care
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10540 Wunderlich Drive _: :; :�;
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The tree's base (where it meets grade) is situated approximately 16 inches west from the
existing shed, 24 inches south from the existing garage, 14 feet from the existing residence,
and 12 feet from the walk aligning the residence. The ground beneath the canopy is
largely unpaved, and consists primarily of gravel and rock.
The oak appears vigorous and in excellent health as leaf , e ,�
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color, shoot growth and canopy density seem optimal. Its "�--. �`a;:, � ,
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structure, however, presents concern to the extent that, in my -:"��"' `�'�:��` ,;. -
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opinion, removing the tree would conform to Section ��° t��.., f-� �,
14.18.180 of the City Municipal Code. The structure is ��`
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comprised of three trunks originating at grade and having '`�� i:�.� �� �� �'
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relatively equal and sizeable trunk diameters of about 20 ��'� - `� �
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inches. These trunks (see photo to right) grow with very
narrow angles of attachment, particularly the center and right
one in the photo, and this growth pattern predisposes one or more trunks to potentially split
from the tree.
The following are measures can be employed to potentially reduce the risk of trunk failure,
although they do not eliminate the risk nor do they necessarily reduce the risk to less-than-
significant levels over the tree's remaining lifespan: pruning to reduce heavy limb weight,
and the installation and frequent (e.g. every year or two) monitoring of support cables. For
optimum effectiveness, these measure would need to be performed according to
professional industry standards set forth by ANSI, by a California state-licensed tree
service company (D-49 classification), and under the direction and supervision of an ISA
(International Society of Arboriculture) certified arborist.
p.o. box 25295. san mateo� californ�a 94402 ■ email: arborresources(a�comcast.net
phone: 650.654.335 I ■ fax: 650.240.0777 ■ licensed contractor #796763
ARBOR RESOLIRCES
. professional consulting a and tree care
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If the tree is removed, Section 14.18.185 ("Tree Replacement") of Cupertino's Municipal
Code provisions the installation of one tree of 36-inch box size to be installed on-site. I
recommend it consist of a coast live oak (Quercus agrifolia), valley oak (Quercus lobata)
or deodar cedar (Cedrus deodara), and be established at least 20 feet from the future
foundation.
The new tree should be installed, including necessary irrigation, by an experienced state-
licensed landscape contractor or a professional tree company. The method of installation
should conform to the standards established by the ISA (International Society of
Arboriculture). I also suggest the tree is double-staked, and irrigation be in the form of an
automatic drip or soaker hose system placed on the soil surface and not in a sleeve.
Sincerely,
G-
David L. Babby
Registered Consulting Arborist #399
Board-Certified Master Arborist #WE-4001 B
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p.o. box 25295� �an mateo� california 94402 ■ email: arborresources(a�comcast.net
phone: 650.654.335 I ■ fax: 650.240.0777 ■ licensed contractor #796763
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