Stamped Arborist Report.pdfOctober 31, 2017
2337 AMERICAN AVE , HAYWARD, CA 94545
1993 EAST BAYSHORE ROAD, REDWOOD CITY , CA 94063
OFFICE: (888) 969-8733
CELL: (925) 518-2028
SOAKLEY@ARBORWELL .COM
City of Cupertino
10300 Torre Avenue
Cupertino, California 95014
Re: Dead Tree Removals at 18920 Forge Drive, Cupertino, CA
To whom it may concern,
This letter intends to address two (2) Fraxinus uhdei (Evergreen Ash) on the southwest corner of the
building in a parking planting endcap at the 18920 Forge Drive property in Cupertino, California.
Please see Exhibit 1.1 for the relative locations of the subject trees indicated as red dots, and for the
location of the replacement trees. The trees were dead upon inspection and removed October 28,
2017.
Metrics for the dead trees are found in the following table:
Common Name Species Diameter
(inches)
Circumference
(inches)
Height (feet) Spread
(feet)
Evergreen Ash Fraxinus uhdei 1 3 41 35 1 5
Evergreen Ash Fraxinus uhdei 1 2 38 35 1 5
The trees were determined to be dead (see Exhibit 1.2) due to their lack of any live foliage and live
cambium tissue. The 12 inch tree had only 10% live foliage left. Advanced decay was located at
the base of each tree around the root flare where extensive root pruning occurred from the installation
of the curb. The decay and root cutting elevates the hazard potential of the tree. A live evergreen
tree should be full and green throughout the year. The exact cause of death is unknown but is likely
due to severe water stress typical of the species.
Removal of a dead tree does not require a tree removal permit prior to its removal pursuant to Section
14.18.140 Paragraph B of the City of Cupertino’s Municipal Code; however, a subsequent
application must be filed within five (5) working days. The trees will require replacement, selected
by the Apple arborist to ensure optimal structure, health, and no girdling roots. The selected trees
will then be trained from an early age as needed to optimize branching structure, extending the
aesthetically and structurally sound lifespan of the trees. The proposed replacements are two (2) 36-
inch box coast live oak in the same locations as the removals.
Please review this information and contact me with any questions or concerns regarding the
information provided in this letter.
Sincerely,
Sam Oakley
ISA WE-9474B
ASCA #556
TR-2017-44
12/05/17
Erick Serrano
October 31, 2017
2337 AMERICAN AVE , HAYWARD, CA 94545
1993 EAST BAYSHORE ROAD, REDWOOD CITY , CA 94063
OFFICE: (888) 969-8733
CELL: (925) 518-2028
SOAKLEY@ARBORWELL .COM
Exhibit 1.1 – Site Map:
The locations of the dead trees are shown with red dots. The replacement trees are shown with green dots in the same
locations as the removasl.
TR-2017-44
12/05/17
Erick Serrano
October 31, 2017
2337 AMERICAN AVE , HAYWARD, CA 94545
1993 EAST BAYSHORE ROAD, REDWOOD CITY , CA 94063
OFFICE: (888) 969-8733
CELL: (925) 518-2028
SOAKLEY@ARBORWELL .COM
Exhibit 1.2 - Supporting Image:
An image of the dead trees at the 18920 Forge Drive property.
TR-2017-44
12/05/17
Erick Serrano