Eucalyptus Removals - Foothill Heights Apts.pdfARBOR RESOURCES
profe551onal consulting arbori5t5 and tree care
March 11, 2019
Mark Johnson
JCJ Investment Corporation
125 Willow Road
Menlo Park, CA 94025
RE: Eucalyptus Removal and Replacement
Foothill Heights Apartments 1 10210 N. Foothill Boulevard, Cupertino
Dear Mr. Johnson:
via: email
This document serves to supplement your application for a Retroactive Tree Removal
Permit regarding three eucalyptus removed from the above -referenced site during the
summer of 2018; to my understanding, removal occurred to accommodate a future spa
area. Site observations were obtained by me on 2/21/19 and 3/1/19, and additional items
assigned to execute are as follows:
■ Ascertain the eucalyptus trees' locations, species, sizes and conditions based on
Google Street View images (dated January 2018).
■ Evaluate whether the species, sizes, conditions and locations of trees installed in
2015 adequately support mitigation guidelines specified within Section 14.18.190 of
the Cupertino Municipal Code. Information regarding locations and installation sizes
were supplied by the Community Manager, Mrs. Claudia Pangura.
TREE DESCRIPTION
The three removed eucalyptus are dwarf blue gums (Eucalyptus g. 'Compacta'), located
adjacent to another and immediately north of the office/rec building. For identification
purposes, I label them as #1 thru 3; #1 is shown closest to N. Foothill Boulevard and #3 the
furthest away. Trees #1 and 2 aligned Building E, their trunks roughly 5 to 6 feet from the
building's foundation, and #3 was setback more equidistant between Building E and the
office/rec building. See attached map for an illustration of these locations (shown in blue).
p.o. box 25295, San mateo, california 94402 ■ email: arborre5ource5@comca5t.net
phone: 650.654.335 1 0 cell: 650.274.3656 ■ licen5ed contractor #796763
ARBOR RESOURCES
profe551onal consulting arbori5t5 and tree care
March 11, 2019
Foothill Heights Apartments
page 2 of 3
A summary of each tree's estimated size and condition is as follows, and all diameters are
considered at 54 inches above the ground:
■ #1: Three trunks with diameters of 22, 17 and 12 inches; height of 55 feet; canopy
spread of 35 feet; appeared in overall fair to good health; had a poor and weak
structure; and canopy was excessively elevated.
■ #2: Two trunks with diameters of 28 and 28 inches; height of 60 feet; canopy spread
of 30 feet; appeared in overall fair to good health; had a poor and weak structure; and
canopy was excessively elevated.
■ #3: Two trunks with diameters of 36 and 24 inches; height of 60 feet; canopy spread
of 30 feet; appeared in overall fair to good health; and had a poor and weak structure.
All three were very large eucalyptus trees having outgrown their confined spaces and
located in a constantly occupied setting, targets below consisting of apartment units, the
sidewalk and street. This species has an inherently rapid growth rate and is highly prone to
frequent branch and limb failure, as evidenced and reported by Mrs. Pangura to have
regularly occurred. This species also exfoliates or sheds significant amounts of flammable
bark, and as a result, can be considered dangerous to nearby structures (and best suited for
windbreaks along agriculture fields, and possibly shelterbelts to reduce erosion and
screening purposes). Mitigating these risks to persons and property below requires an
extremely frequent, costly and perhaps unreasonable level of maintenance and monitoring
throughout the trees' remaining lifespans.
An additional note includes that large root growth along the adjacent building's foundation
likely occurred, and would present a progressively increased threat of potential damage to
the building overtime. This threat could not be reasonably abated without jeopardizing the
trees' anchoring capacity.
p.o. box 25295, San mateo, california 94402 ■ email: arborre5ource5@comca5t.net
phone: 650.654.335 1 0 cell: 650.274.3656 ■ licen5ed contractor #796763
ARBOR RESOURCES
profe551onal consulting arbori5t5 and tree care
March 11, 2019
Foothill Heights Apartments
page 3 of 3
QUALIFYING REPLACEMENTS
Applying Table A from Section 14.18.190 of the City Code, replacement trees to mitigate
removals include three of 36 -inch box size (one 36 -inch box for each removed). I have
identified three qualifying replacements located behind units 21 thru 24 (Building F), each
being fern pines (Podocarpus gracilior) situated at reasonably acceptable locations for an
apartment complex and their young age. Their locations are identified in red on the
attached site map, and the range of their size dimensions includes 4- to 4.5 -inch trunk
diameters, 18 to 22 feet heights, and 10- to 15 -foot canopy spreads. As a separate note,
support stakes should be removed from each as they appear sufficiently rooted, and further
support only impairs and can significantly debilitate their future anchoring capacity.
Sincerely,
k&� 6. �,/
David L. Babby
Registered Consulting Arborist® #399 rt�
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Board -Certified Master Arborist®#WE-40018 � � -
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CA Licensed Tree Service Contractor #796763 (C61/D49)
Attachment: Site Map (one sheet)
p.o. box 25295, San mateo, california 94402 ■ email: arborre5ource5@comca5t.net
phone: 650.654.335 1 0 cell: 650.274.3656 ■ licen5ed contractor #796763
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