Arborist Report, Justification, Site Plan 2.docxValley Oak Tree Assessment And Recommendation
Stanley Chu
10447 Heney Creek PI.
Cupertino, CA 95014
650-492-0652
nancychu62.com
October 25, 2018
Report Prepared By:
Larry Van Groningen
I.S.A. Certified Arborist #WE -9151A
Qualified Applicator License #117443
Stanley Chu Tree Recommendations
CONTENTS
Background ........................3
Assignment ........................3
Limtits of the assignment ...3
Purpose And Use Of This Report 3
Observations ...................4
Recommendations .............4
Apppendix A: Site Overview 5
Appendix B: Tree Photographs 6 & 7
Appendix B1 ..................... 8 & 9
Qualifications, Assumptions, and Limiting
Conditions ..................... 10
Certification of Performance11
October 25, 2018
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
541 W.Capitol Expwy #287 San Jose, Ca 95136 2
Stanley Chu Tree Recommendations October 25, 2018
On October 25, 2018, I, Larry Van Groningen, Certified Arborist No. WE -9151 A was called
out to inspect one tree located at 10447 Heney Creek PI., Cupertino, CA 95014 and provide
recommendations.
ASSIGNMENT
• Inspect one tree with concern to hazard it may pose.
• Provide report outlining findings and recommendations
LIMTITS OF THE ASSIGNMENT
No aerial inspection, trenching or resistance drilling was performed.
No Biological tests were performed.
Only a visual inspection from the ground was performed.
The purpose of this report is to provide recommendations regarding this tree in question.
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 3
Stanley Chu Tree Recommendations October 25, 2018
OBSERVATIONS
The Valley Oak (Quercus agrifolia) is located on the west side of home. (Appendix A:
Site Overview)
It is approximately 70 feet tall with a canopy spread of 40 feet, and a diameter of 37
inches measured at 4.5 feet above grade.
This tree has three main leaders which branch in upper canopy.
This tree has a history of limb failure and now deadwood at the major branch union.
Targets include an occupied dwelling. (Appendix B)
There is a large dark area at base of main stem that indicates decay.
Decay is an area of wood that is undergoing decomposition/the process of degradation by
micro-organisms. This also weakens the structural integrity. No pruning or treatment can
repair this type of defect. This tree will continue to decline in health.
This tree is also over mature for the area.
There is not adequate space necessary for a root plate needed for a tree of this size.
The root plate is the combination of large structural and smaller roots and soil near the
base of trunk which are largely responsible for holding the tree erect. (Appendix 131)
RECOMMENDATIONS
Analysis of this data clearly shows that this tree is imminently hazardous and an imminent
threat to the health, safety and general welfare of persons and the house/property, which
requires immediate action to abate and should be removed and replaced with a more
appropriate species.
City has requested 36" box replacement tree, unfortunately there is no adequate room to put a
tree of this size in the front yard or back yard. Tree size should be no larger than 24" box
planted in the front yard.
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 4
Stanley Chu Tree Recommendations
APPPENDIX A: SITE OVERVIEW
October 25, 2018
Yellow pin indicates location of the Valley Oak tree.
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 5
Stanley Chu Tree Recommendations
October 25, 2018
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 6
Stanley Chu Tree Recommendations
October 25, 2018
Photos of Valley Oak tree.
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 7
Stanley Chu Tree Recommendations
Appendix B1:
October 25, 2018
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
° 541 W.Capitol Expwy #287 San Jose, Ca 95136 8
Stanley Chu Tree Recommendations
October 25, 2018
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 9
Stanley Chu Tree Recommendations
October 25, 2018
Photos of tree being over mature for the area, too close to homes foundation and decay at
base of main stem.
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 10
Stanley Chu Tree Recommendations
October 25, 2018
QUALIFICATIONS, ASSUMPTIONS, AND LIMITING CONDITIONS
Any legal description provided to the arborist is assumed to be correct. Any titles or
ownership of properties are assumed to be good and marketable. All property is appraised or
evaluated as though free and clear, under responsible ownership and competent
management.
All property is presumed to be in conformance with applicable codes, ordinances, statutes,
or other regulations.
Care has been taken to obtain information from reliable sources. However, the arborist
cannot be responsible for the accuracy of information provided by others.
The arborist shall not be required to give testimony or attend meetings, hearings,
conferences, mediations, arbitrations, or trials by reason of this report unless subsequent
contractual arraignments are made, including payment of an additional fee for such service.
This report and any appraisal value expressed herein represent the opinion of the arborist,
and the arborist fee is not contingent upon the reporting of a specified appraised value, a
stipulated result, or the occurrence of a subsequent event.
Sketches, drawings, and photographs in this report are intended for use as visual aids, are
not necessarily to scale, and should not be construed as engineering or architectural reports
or surveys. The reproduction of information generated by architects, engineers, or other
consultants on any sketches, drawings, or photographs is only for coordination and ease of
reference. Inclusion of said information with any drawings or other documents does not
constitute a representation as to the sufficiency or accuracy of said information.
Unless otherwise expressed: a) this report covers only examined items and their condition
at the time of inspection; and b) the inspection is limited to visual examination of accessible
items without dissection, excavation, probing, or coring. There is no warranty or guarantee,
expressed or implied, that structural problems or deficiencies of plants or property may not
arise in the future.
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 11
Stanley Chu Tree Recommendations October 25, 2018
CERTIFICATION OF PERFORMANCE
I, Larry Van Groningen, Certify:
That I have personally inspected the tree(s) and/or the property referred to in this report,
and have states my findings accurately. The extent of the evaluation and/or appraisal is stated
in the attached report and Terms of Assignment;
That I have no current or prospective interest in the vegetation or the property that is the
subject of this report, and I have no personal interest or bias with respect to the parties
involved;
That the analysis, opinions and conclusions stated herein are my own;
That my analysis, opinions, and conclusions were developed and this report has been
prepared according to commonly accepted Arboricultural practices;
That no one provided significant professional assistance to the arborist, except as
indicated in the report.
That my compensation is not contingent upon the reporting of a predetermined conclusion
that favors the cause of the client or any other party, nor upon the results of the assessment,
the attainment of stipulated results, or the occurrence of any other subsequent events;
I further certify that I am an I.S.A. Certified Arborist in good standing with The International
Society of Arboriculture. I hold a valid Qualified Applicators License with California
Department of Pesticide Regulation. I have been involved with the practice of Arboriculture
and the care and study of trees since 1997.
Larry C. Van Groningen
I.S.A. Certified Arborist WE -9151A
Qualified Applicator License 117443
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 12
Stanley Chu Tree Recommendations
October 25, 2018
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 13
Stanley Chu Tree Recommendations
October 25, 2018
Larry VanGroningen-Bay Area Tree Specialists - 408-679-7117 Mobile
408-836-9147 Office larry.bayareatreespecialists@gmail.com
BA- 541 W.Capitol Expwy #287 San Jose, Ca 95136 14