Attachment 07ur, arfr.::;'- management inc.
Corey Residence
26 Alpine Ave.
Los Gatos, CA 95030
Re: Exploratory Trench
To Whom It May Concern:
Assignment
It was my assignment to inspect the 26" diameter Coast Live Oak (Quercus agrifolia tree #9) on
the NE fence line and assess the possible impacts of the proposed construction to this tree.
Summary Statement
The proposed construction is of an excavation for a building and a lightwell. There is a 15'
required set back from the 'property line. This is the location for the proposed construction.
Oak #9 sits right on the fence line. The health of this tree is Fair — Poor. The canopy is thin.
To determine if the proposed excavation would negatively impact the Oak i instructed. the team
to carefully hand dig an exploratory trench. The trench was dug 14' from the tree and is 30'
long and 3' deep. The instructions were to retain all roots 1" diameter and larger in this trench.
The trench revealed that there were no
significant roots at all in the area of the
proposed construction (see images to
right). There will not be roots below the 3'
depth either. The lack of roots is not
atypical for a tree that is not particularly
vigorous. At this distance there is no root
activity therefore the proposed excavation
will have no negative effects on the 26"
fence -line Oak tree.
I recommend tree protection fencing be installed prior to the excavation and that the fencing
be installed as close to the actual excavation as possible (within 3') to protect any roots that
may be growing closer to the tree.
Respectfully,
Michael P. Young
ATTACHMENT 7
1650i 321+0202 I 1408-499 8063 I po box 971 los gatos ca 95031 I urbon, w-:management.com
contractors license # 755989 i certified arborist WC ISA # 623 • certified tree risk assessor #1399
thurban 'reemc nc ernent inc.
ASSUMPTIONS AND LIMITING CONDITIONS
1. Any legal description provided to this arborist is assumed to be correct. No responsibility
is assumed for matters legal in character nor is any opinion rendered as to the quality of
any title.
2. This arborist can neither guarantee nor be responsible for accuracy of information
provided by others.
3. This arborist shall not be required to give testimony or to attend court by reason of the
information provided by this arborist unless subsequent written arrangements are made,
including payment of an additional fee for services.
4. Loss or removal of any part of this report invalidates the entire report.
5. Possession of this report or a copy thereof does not imply right of publication or use for
any purpose by any other than the person(s) to whom it is addressed without written
consent of this arborist.
6. This report and the values expressed herein represent the opinion of this arborist, and this
arborist's fee is in no way contingent upon the reporting of a specified value nor upon
any finding to be reported.
7. Sketches, diagrams, graphs, photos, etc., in this report, being intended as visual aids, are
not necessarily to scale and should not be construed as engineering reports or surveys.
8. This report has been made in conformity with acceptable appraisal/evaluation/diagnostic
reporting techniques and procedures, as recommended by the International Society of
Arboriculture.
9. When applying any pesticide, fungicide, or herbicide, always follow label instructions.
10. No tree described in this report was climbed, unless otherwise stated. This arborist
cannot take responsibility for any defects which could only have been discovered by
climbing. A full root collar inspection, consisting of excavating the soil around the tree
to uncover the root collar and major buttress roots, was not performed, unless otherwise
stated. This arborist cannot take responsibility for any root defects which could only
have been discovered by such an inspection.
ARBORIST DISCLOSURE STATEMENT
Arborists are tree specialists who use their education, knowledge, training and experience to
examine trees, recommend measures to enhance the beauty and health of trees, and attempt to
reduce the risk of living near trees. Clients may choose to accept or disregard the
recommendations of the arborist, or to seek additional advice.
Arborists cannot detect every condition that could possibly lead to the structural failure of a
tree. Trees are living organisms that fail in ways we do not fully understand. Conditions are
often hidden within trees and below ground. Arborists cannot guarantee that a tree will be
healthy or safe under all circumstances, or for a specified period of time. Likewise, remedial
treatments, like any medicine, cannot be guaranteed.
Treatment, pruning and removal of trees may involve considerations beyond the scope of the
arborist's services such as property boundaries, property ownership, site lines, disputes
between neighbors, and other issues. Arborists cannot take such considerations into account
unless complete and accurate information is disclosed to the arborist. An arborist should then
be expected to reasonably rely upon the completeness and accuracy of the information
provided.
Trees can be managed, but they cannot be controlled. To live near trees is to accept some degree
of risk. The only way to eliminate all risk associated with trees is to eliminate all trees.
1650+321+0202 I C408+399+8063 po box 971 los gab:* co 95031 I urbantreemanegement_com
contractors Iiscence N 765989 I cerified arborist WC ISA 623