TR-2014-06b OFFICE OF COMMUNITY DEVELOPMENT
CITY HALL
10300 TORRE AVENUE•CUPERTINO, CA 95014-3255
C U P E RT 1 N 4 (408) 777-3308 • FAX (408)777-3333•planning(c�cuqertino.orq
February 18, 2014
Sarah Hon
A Plus Tree Service
5125 Port Chicago Hwy
Concord, CA 94520
SUBJECT: TREE REMOVAL PERMIT ACTION LETTER—Application TR-2014-06
This letter confirms the decision of the Director of Community Development, given on February 18th,
2014, approving a Tree Removal Permit to allow the removal and replacement of two (2) hazardous
Silk Oak trees at an existing apartment complex, located at 10159 S Blaney Ave. The application is
approved with the following conditions:
1. APPROVED PROTECT
This approval is based on the arborist report prepared by Sarah Hon (WE-9519A), dated January
16t'', 2014, consisting of 4 pages, a tree removal plan, and a replacement plan, except as may be
amended by conditions in this resolution.
2. TREE REPLACEMENTS
The applicant is required to plant four (4) 24-inch box Acer Rubrum 'Armstrong' replacement trees
in accordance with the Protected Tree Ordinance and approved tree replacement plan.
Modifications to the tree species and location may be made to the approved replacement plan
pending staff approvaL The replacement trees shall be planted within 30 days of the effective
approval date of this tree removal permit.
3. NOTICE OF FEES DEDICATIONS RESERVATIONS OR OTHER EXACTIONS
The Conditions of Project Approval 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. You are hereby further
notified that the 90-day approval period in which you may protest these fees, dedications,
reservations, and other exactions, pursuant to Government Code Section 66020(a), has begun. If
you fail to file a protest within this 90-day period complying with all of the requirements of Section
66020,you will be legally barred from later challenging such exactions.
Staff has made the findings necessary to grant the tree removal permit in accordance with Section
14.18.120 of the Protected Trees Ordinance.
Sincerely,
Simon Vuong, AI P
Associate Planner
(408) 777-1356
simonv@cupertino.org
Enclosure: Arborist Report
CC:Anthony DeShaw,Biltmore Apartments,10159 S Blaney Ave,Cupertino,CA 95014
�� � • P L U S Arborist Report for
i � 10159 S. Blaney Ave
�� T'REE SERVICE� reparedby
NOT YOUR AVERAGE TREE SERVIC �"1 rah Hon
�1�� I ' d Arborist WE-9519A
i����J
5125 Port Chicago Hwy
Concord,Ca 94520 �p,N 21 2014
(866)815-2525
sarah@aplustree.com
www.aplustree.com �Y. �� Prepared on January 16th, 2014
Background This report is concerning two(2)trees located at 10159 S.Blaney Ave,Cupertino,CA.The
property is known as The Biltmore Apartments,owned and managed by Prometheus Real Estate
Information Group,Inc.
On January 8th,2014 while I was performing a property inspection at Biltmore,I noticed a Silk
Oak,Grevillea robusta, (about 16"in Diameter)that had large colonies of mushrooms at the base
of the tree and along the root lines.Fungal growth is an indication of decay,which usually is
evidence of root rot,which this species of tree is prone to.In my experience,any indication of
root rot is code red for removal.The anchoring roots are significantly compromised as well as the
stability of the tree,creating an immediate hazard.For the size and location of this tree(between
2 apartment buildings and adjacent to a sidewalk)),damage to property and/or persons in the
event of a failure is likely.
To be sure that the fungus did indeed originate from the roots and not just from topsoil or mulch
that may have had mushroom spores,on the following Tuesday,January 14th,2014,I scheduled
a crew to perform a root excavation.During the root excavation,the on-site Arborist confirmed
that the tree had root rot,stating that anchoring roots just below the surface were"crumbling in
his hands".He confirmed that enough of the root system had been compromised that the tree
must be taken down as it was deemed a hazard.He also continued the excavation with the
neighboring Silk Oak and also confirmed this was suffering from the same problem and will also
need to be removed immediately.
Both Silk Oaks were removed on the same day as the root excavation,lanuary 14th,2014
Assignment (and Root excavation was done on the following two(2)trees:
any limiting A.SilkOak-Grevillearobusta, 16" DBH(50"Circumference)
factors) B.Silk Oak-Grevillea robusta, 17"DBH (53"Circumference)
Observations
Please see photos in Attachment I for further observations.
Testing and Visual inspection,root/soil excavation.
Analysis
�si�S r����i�. �_�..�.:.Q`�C/�.,._�.�
.z_.�.. s;. J�g_��
,.
�ISCUSS1011 Silk Oaks are susceptible to Phytophthora and root rot and may succumb to these given the right
conditions,particularly moist soil that is not well drained.Root rot is the decay of anchoring
and/or fibrous roots underneath the soil.In this case,the mushroom growth indicated decay in
the roots.The root excavation confirmed that the anchoring roots indeed had root rot.
When the trees have root rot,the stability of the tree is compromised and is absolutely a hazard.
Since the tree can no longer support the weight in the crown,tree failure is only a matter of time.
Often the crown can be quite healthy looking if the root rot was primarily affecting the anchoring
roots and not the fibrous roots.
Recommendations Upon excavation,the trees were deemed unsafe with potential damage to property and injure
persons..Immediate removal was a necessary course of action.
Attachment I
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