Arborist Report_4.pdfFebruary 15, 2018
2337 AMERICAN AVE, HAYWARD, CA 94545
1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063
OFFICE: (888) 969-8733
CELL: (925) 518-2028
WWW.ARBORWELL.COM
City of Cupertino
Community Development Department
10300 Torre Avenue
Cupertino, California 95014
Re: Dead Ash Tree Removal at 19333 Vallco Parkway, Cupertino
To whom it may concern,
Arborwell has been retained to prepare an arborist letter for the commercial property at 19333 Vallco
Parkway in Cupertino, CA. This letter documents the necessity to remove one (1) dead Fraxinus
uhdei (Evergreen Ash) to reduce tree-related safety risks related to a dead tree.
The Ash tree is 12 inches in diameter at 4.5 feet above grade, 30 feet in height and 30 feet wide. It
is located in the parking lot along the east-side of the building in a parking center island. The Ash
has been in decline for many years due to its natural predisposition to be infected with a terminal
disease called Ash Dieback for which there is no treatment or cure. As the disease advanced, the
tree was not able to recover.
Replacements
We understand the Ash is considered a protected tree pursuant to Section 14.18.035 of the City of
Cupertino’s Municipal Code. However, it is lawful to remove a dead tree pursuant to Section 14.18
of the City of Cupertino’s Municipal Code, and ask for your permission to proceed with the removal
and replacement.
To mitigate the removal, we propose to replace with a 36-inch box Quercus spp. (species to be
determined by the Apple Arborist) in the same location as the removal and evenly spaced for
maturity. The new tree will be selected by an Apple arborist to ensure optimal structure, health, and
no girdling roots, and then trained from an early age as needed to optimize branching structure which
will extend the aesthetically and structurally sound lifespan of the tree.
Please review this information and contact me with any questions or concerns regarding the
information provided in this letter.
Sincerely,
Samuel Oakley
ISA Board Certified Master Arborist, WE-9474B
ASCA Registered Consulting Arborist #556
February 15, 2018
2337 AMERICAN AVE, HAYWARD, CA 94545
1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063
OFFICE: (888) 969-8733
CELL: (925) 518-2028
WWW.ARBORWELL.COM
Exhibit 1.1 – Site Map:
The location of the dead tree, shown with a red dot. The replacement tree is shown with a green dot in the bottom
image.
February 15, 2018
2337 AMERICAN AVE, HAYWARD, CA 94545
1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063
OFFICE: (888) 969-8733
CELL: (925) 518-2028
WWW.ARBORWELL.COM
Exhibit 1.2 – Supporting Image: An image of the dead Ash. Because it is dead, this Ash has an increased
probability of failure into the drive aisle.