TR-2022-024 Stamped Plans Arborist OnSitev Community Development Department
Planning Division - Cupertino
Horticultural Consulting, Inc. CUPERTINO APPROVED
Case# TR-2022-024
Application Number(s)
Approval Body: Director/Staff
ISA Certified Arbor 4Yh)&Ve1Pojr!kae07/29/22
Poveda
Case Manager
Addendum
Submitted To:
Douglas Wolf
22304 De Anza Circle
Cupertino, California 95014
Project Location:
22304 De Anza Circle
Cupertino, California 95014
Submitted By:
Robert Booty, Registered Member #487
ISA Qualified Tree Risk Assessor
The American Society of Consulting Arborists
ISA Certified Arborist WC-4286
July 6, 2022
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
Planning Division — Cupertino
CVPERT1No APPROVED
Case# TR-2022-024
Application Number(s)
Limits of Assignment Approval Body: Director/Staff
Approval Date 07/29/22
This assignment is limited to one Black Oak Tree (Quercus velutinc�y olves tAgedallylk inspection
using sonic tomography and Resistograph testing up to six feet of the rank. Since trees calf g
unpredictable weather events this tomography study and its recommendations are invalid during those abnormal
times. Because trees continually change, this evaluation is valid only for the date of this inspection.
Disclaimer'
Although studies have shown Sonic Tomography and Resistograph testing to have a high degree of accuracy,
these are not photographs but images of predicted changes in wood composition indicating good or poor
structural stability. Arborist OnSite endeavors to use equipment that generates useful information to prepare
reports that will reflect its best judgment in light of the facts as it knows them.
Assignment
I have been retained by Douglas Wolf who resides at 22304 De Anza Circle in Cupertino California. For
sometime Mr. Wolf has had concerns regarding a large Black Oak tree in his backyard. His home was literally
built around the tree when it was constructed just to preserve the tree. For the last ten years or so the tree has
been gradually declining and changing structurally. The main tree trunk is now resting on the residence. There
is concern of internal trunk and root decay. I have been retained to perform a level 3 tree risk assessment
utilizing sonic tomography and Resistograph testing in an effort to determine the structural health and stability
of the tree.
'Use of Copyrighted material. Services provided under this Agreement, including all reports, information or recommendations prepared or issued by Arborist
OnSite®,are for the exclusive use of Douglas Wolf and the city of Cupertino for the project specified herein.No other use is authorized under this agreement.Client
will not distribute or convey Consultant's reports or recommendations to any other person or organization other than those identified in the project description without
Consultant's written authorization.Client hereby releases Consultant from liability and agrees to defend,indemnify and hold Arborist OnSite®harmless from any and
all claims,liabilities,damages or expenses arising,in whole or in part,from such unauthorized distribution.
Robert Booty Registered Consulting Arborist 487 2
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Observations Community Development Department
Planning Division — Cupertino
I visited the site June 19, 2022. The tree under our evaluation is aqVP&,A' k Tree (QuerctARPWWE�D
The tree has a trunk diameter measured at soil grade up 4.5 feet of thtW#k of 39 incheT.F' ks0g*ht2 is 30
feet. The homeowner informed me that as the canopy continued to die-back he has a 4g &wRWN)prune
off the dead structural limbs. This has been repeated more than once resulting in the current, shorter height of
the tree. About eight feet up the trunk a large cavity, that at one timLAM0a A@-g4MA-ig§ filled with
a material to prevent that. The whole tree is filled with adventitious)%Wpf lvD-a#wludiii-V4W2inopy and lower
trunk. Signature Erika Poveda
Case Manager
The tree is located within a cut-out in a wooden deck; the deck is about 20 inches from soil grade. The
residence was constructed around the tree with the tree originally exiting the structure within the center of a cut-
out in the roof. Currently the tree is now resting on the roof, this would be on the compression side of the trunk
next to the living room. At the buttress of the oak all around the circumference of the tree are large mature
Ganoderma applanatum4 conks and other unidentified fungi. The health of the tree is visibly declining and is
very poor.
2 Height measurement was obtained by using a Nikon Forestry PRO II Laser Rangefmder/Hypsometer.
3 Under stress a tree from disease or another catastrophic event will activate latent buds,these are located throughout the
tree and will sprout only when necessary to provide a greater leaf canopy,even in areas where leaves are not normally found.
This is an effort to increase Photosynthesis for its survival.
4 Ganoderma applanatum; is a white rot fungus which once proliferated in a tree can inhibit both its health and structure.
Although predominantly saprophytic(feeding on deadwood)it is considered virulent due to its association
with extensive internal decay which predisposes a tree to failure.White rot degrades the lignin in wood,
leaving the cellulose behind,the result of which is that the wood becomes moist,soft and spongy without strength.
Robert Booty Registered Consulting Arborist 487 3
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Conclusions Community Development Department
Planning Division—Cupertino
We performed one elevation of wood testing using sonic tomogra WT-Hoinches from graARP1ROVEDlts
indicated decay through-out that elevation. We performed 8 Resistoegg�hoests choosingT 1()Q ions next
to tomography sensors to confirm data, these indicated wood compromised by decay
Because the tree is now resting on the roof I conclude the roots have been affected and have partially failed. I
recommend removal of the oak tree immediately. Approval Body: Director/Staff
Approval Date 07/29/22
Signature Erika Poveda
Case Manager
Recommendations
The Black Oak tree #509 has advanced decay that has affected the structural stability of the tree. It represents an
unacceptable risk to the property and should be removed without delay. This is an emergency situation.
Robert Booty Registered Consulting Arborist 487 4
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
\ r-2022-024
Division — Cupertino
APPROVED
Case #
Application Number(s)
' pprovaI Body: Director/ Staf
,Approval Date 07/29/22
Signature Erika Poveda
q'.• Case Manager
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3 � 24
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Robert Booty Registered Consulting Arborist 487 5
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
qr�M
Community Development Department
Tree is resting roof of he reside ee. . _
Ptlanning Division Cupertino
Stress cracks o" the weight of the tAR.PRO ED
Case# TR-202 4
Application Numbr(5)
Approval Body: Director/Sta
Approval Date -.0129199,
Signature
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Robert Booty Registered Consulting Arborist 487 6
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
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July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
Sonic Tomography / Meth :)gy Planning Division — Cupertino
CVFERTINQ APPROVED
Case# TR-2022-024
Sonic tomography detects defects in trees by measuring the velocity of souAq'waves as�st'hey
pass through wood. Differences in velocity help determin(Appr,acrg)lfllivd�pcb�v&-idwidtaffeas of
compromised wood, which has less elasticity and density AWsvwrNawodQTh9A2kduction in
elasticity results in the inability of sound waves to take a dji .&?, h thr@ t}gdWood,
indicating the presence of the wood being compromised by decay pathogens ora,thorgdefects.
The speed of sound is measured as it travels through wood and correlates with wood quality and
strength and displayed in the following images it creates.
Using an array of electronic sensors, attached at specific and chosen locations around the trunk
or scaffold limbs, sonic tomography creates a set of internal cross-sectional imaging maps of
internal tree trunks or limbs. These maps may correspond to areas of decay, hollows, cracks, or
other features that may reduce wood strength, and can be used to estimate loss of strength across
the plane being imaged.
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Robert Booty Registered Consulting Arborist 487 10
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
Planning Division — Cupertino
.�t 1;CVPERTINO
APPROVED
°'.Case#
TR-2022-024
7 +•; Application Number(s)
i
Approval Body: Director/Staff
Approval Date 07/29/22
Ai Signature Erika Poveda
Case Manager
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Robert Booty Registered Consulting Arborist 487 11
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
t�-0-e v-e-I-o-pm.e-n-t D e rt m e n t
22304 De Anza Circle Cupertino, California. Tomo,Wly ImftgnALaPki --tt;LPpertino
#509 Trunk Diameter 146 inches, imaging perfor 22 inches froAiRFg Ac[)
Application Number(s)
Numbers circled in red were the sites of Raosi"rapk*esting.
The numbers represent the positioning of the tomoARq'#byzdcDzWs aRNM41e tree.
Signature Erika Poveda
Case Manager
H: 0...66 cm 3940
40 cm 14 N
-------- =�- -- -- - - - -3 +- -WE
2 sYI,
23
4_.S
2� I This side of the tree is
i resting on the roof of the
s 211 i residence
ago --- 2130
This area is over the living m!s
D21 - s
g Q room.
17
O
14 —0 12 i
13
-- -- -- - - - - - - - - -
29 cm
32D
Analysis Notes; this image was created by calculating the speed in which sound traveled through the wood in the
trunk. Green indicates sound wood with no obstructions or decay pathogens that would slow the sound waves down
in that area. The yellow reveals a slightly slower travel time indicating some degree of compromised wood. Red to
orange indicates the slowest travel time for this image. This relates to a greater wood strength loss from wood
compromised by decay pathogens.
Robert Booty Registered Consulting Arborist 487 12
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Wind loss reduction value 1niF oodnyr n ph ent Department
Planning Division — Cupertino
Stability of trees, especially their strength, is not only affected by wood quality, OpAy its geometric,ApPR0.\kE(Dnpared to a circular cross-
section form, an elliptical cross-section can bear different loads, depending on tht:g r& ion of force (T4t4()xq1D2W compare this to a board
which can bear a higher load on its narrow side than on its broadside. Internal decay reduces Me cTAgr,§g (AUA jfga orMe TUaTcand therefore
reduces the moment of resistance from wind. This software is based on this concept. It enables the assessment and visual presentation of the
relative moment of resistance (wind) for trees with any cross-sectional geometry. ISWY r®t I oSta##sideration as well as different
tension and compression strengths of wood under load. The red circle depicts thqNWr@vW0atfrwooQW&ig& loss due to decay and its failure
point under wind load. The green circle is the general geometric circumference o�lt s u°p�g secti�n I zurkda der investigation.
oveA reduction of values to the 50% line means that the tree has lost 50% of its ability o reSISt WIIIU luaus. Case Manager
H;0...56 CM 390
N
WE
S
7 °
2y
'
m!s
°lo
Geometric(91% - 100%)
Current 151% -62%) 32D
Analysis Notes; The software calculated that this tree has lost 50—62% of its ability to resist wind loads.
*This is not taking into consideration of root loss from disease.
Robert Booty Registered Consulting Arborist 487 13
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Develop ��DPep�,rtr}�ent
Planning Divisio F rd ap
CUPERTINO APPROVEDNot to Scale
Case# TR-2022-024
Application Number(s)
Approval Body: Director/Staff
^Wr J- n7 9Q/99
Signature Erika Poveda
22304 De Anza Circle Case Manager
Sidewalk
Residence
509
ir Wood Decking
Pool
Robert Booty Registered Consulting Arborist 487 14
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
Resistograph Testin MetPiiud0i'V� Cupertino
CVPER71N4 APPf� ED
Case# TR-2022-024
Application Number(s)
Resistograph testing is an advanced tree risk analysis procedARMY81A$&PMt8M t ffes a very
07�/29/2� a rniin�are ae
small but long drill bit(20 inches). As the drill enters the woo�` i90tgre—resls_w____ _t _ _ �_____
it passes through hard(healthy)wood(=high resistance) and i51grmftatdecay0kw6W"ow resistance),
or hollow areas (=no resistance) in the trunk. case Manager
Ground penetrating radar was used higher up on the trunk, however due to the unusual shape of the trunk
at the lower levels. The radar antenna was too large to be used due to the abrupt and uneven surfaces of
the trunk which may then provide unreliable information.
So after the results of the imaging on the upper areas of the tree were completed, Resistograph testing was
performed in the lower buttress sections of the tree. Together, this provided information that was needed
for decision making. When the term; Compromised wood is used in the analysis it means decay pathogens
have infected the wood and has begun digesting the lignin within its cell walls, creating a significant
strength loss. The following pages contain the results of this testing.
Resistance Recording Drills
Resistance recording drills are specialized pieces of decay detection equipment that may be used as part of
an advanced level 3 risk assessment. Resistance recording drills have been shown to be effective in
helping arborists detect and document internal tree decay in trees (Costello and Quarles 1999; John stone
et al. 2007). As the drilling needle (bit)passes through the wood of a trunk,branch, or root, the resistance
it encounters is recorded. Sharp decreases in the resistance serve as an indication that a pocket of decay or
a crack is present. As their name indicates, resistance recording drills provide a visual documentation on
drilling resistance for final reporting. Measurements are recorded at a 1:1 scale involving an onboard
computer with paper printouts available in the field, allowing the technician to partially assess the
condition of the tree part drilled on site. Internal data is recorded electronically and saved for visualization
and assessment with its software back at the office.
Robert Booty Registered Consulting Arborist 487 15
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
—EO RM9 II $pFTTe Rt—De fly Ill nt
June 1926, 2022 Black Oak Tree #50 esist(wVbA 4WA9Aupertino
Performed 22 inches from grade. Next to se aet 1 Trunk diar��ow)W' inches.
Application Number(s)
roval Body,
pproval Date.
5 [l
I -
[%] 00000001 20220619:1440 Next to sensor #1 01
100
75 Compromised Wood
50
25
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 16
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
June 1926, 2022 Black Oak Tree # f��g'ist'�'6ftRe flFf�rpgepartmen
Performed 22 inches from grade. Next to s . #7 TMU"M4'fetU TUPiVW&
CUPERTiNO APPROVED
Case# TR-2022-024
s
of
6
[%] 00000002 20220619:1443 Next to sensor #7 02
100
75 Compromised Wood
50
25
0 ui uuuuuuuu iuu
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 17
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
June 1926, 2022 Black Oak Tree #509.MU 3i�?(��AY191F11gfiR J t Department
Performed 22 inches from grade. Next to sens 1 Tru�i109i e�'� °ll �ci s � ,o
CUPLRTINO APPROVED
Case # TR-2022-024
r
r
- p
1i
a I
14
3
I�Rip�F
[%] 00000003 20220619:1447 Next to sensor #14 03
100
75 Compromised Wood
50
25
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 18
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
June 1926, 2022 Black Oak Tree #509.LWU 3i��(�, l�yjqlFljF11flgntt Department
Performed 22 inches from grade. Next to sens 3 TruR10(�'i n°e�'�'°1' �cl ['C11ei ,o
CUPLRTINO APPROVED
Case# TR-2022-024
Approva I Body: Dire - =Sta
Approval Date
• -
r azure
9 8 17
s
[%] 00000004 20220619:1455 Next to sensor #18 04
100
75 Compromised Wood
50
25
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 19
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
�CLCCIJ:C1l..nity—D-eALe1.ao m P nt1)-e-pr:. t
June 1926, 2022 Black Oak Tree #5 esistOg dgDm**Ilimg-#hpertino
Performed 22 inches from grade. Next to se w 20 Trunk diA-PO —F46 inches.
Case# TR-2022-024
Application Number(s)
rF'v
y,
i,
4l
lg 8
r
t
1
[0/0] 00000005 20220619:1500 Next to sensor #20 05
100
75
50 Compromised Wood
25
0 '
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 20
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
June 1926, 2022 Black Oak Tree #509L,Resistograph IAWkily
Performed 22 inches from grade. Next to senwy, l5 Trunk SiRiM&O 6 inches.
Application Number(s)
Approval Bo
4_m Approval D .
.gnature
Y4
r
��aaHr
[0/0] 00000006 20220619:1504 Next to sensor #15 06
100
75
50 Compromised Wood
25
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 21
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
June 1926, 2022 Black Oak Tree #50 . e�& ygAly�fl�k��Departm nt
Performed 22 inches from grade. Next to sen 12 Ta4�et�`�n14�u11'��.
CUPLRTINO APPROVED
Case# TR-2022-024
A*
1�
`-R\NNTECH
[%] 00000007 20220619:1508 Next to sensor #12 07
100
75
Compromised Wood
50
25
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 22
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
—EORM9I1`FtFFIIt 2�$pm-I fl�eRt—D-effi nt
June 1926, 2022 Black Oak Tree #50 esist 'I�I}�i b r41jk* � pertino
Performed 6 feet from grade. Next #86I-EMEk diameter 1AO .
TIR- -
Appiication Number(s)
vaI Body: Director/Staff
provaI Date 07/29/22
, I
t gnature Efika Poveda
it
Case Manager
Drilling# 8
J N.
r� f
5 $
`
j
a
art
[%] 00000008 20220619:1513 Elevation 6 feet 08
100-
75 Compromised Wood Compromised Wood
50
III WEL
25
0-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
[inch]
Robert Booty Registered Consulting Arborist 487 23
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
Planning Division — Cupertino
CVPERT1No APPROVED
Case# TR-2022-024
Application Number(s)
Assumptions and LimitftVgVMfd M1Wr/staff
Approval Date 07/29/22
Suln� ur�e Erik oveda
1. Any legal description provided to the consultant is ass e o e ' ' '
assumed for matters legal in character nor is any opinion rendered as to the quVity loT any title.
2. The consultant can neither guarantee nor be responsible for accuracy of information provided by
others, information not provided or disclosed.
3. The consultant shall not be required to give testimony or to attend court by reason of this
consultation/reports 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/evaluation.
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 persons(s)to whom it is addressed without written consent of this
consultant.
6. This report represents the opinion of consultant, and the consultant's fee is in no way contingent
upon the reporting upon any pre-determined findings.
7. Sketches, diagrams, graphs,photos, ect., 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 evaluation/diagnostic reporting
techniques and procedures, as recommended by the International Society of Arboriculture.
9. No tree described in this report was climbed, unless otherwise stated. Arborist OnSite® cannot
assume responsibility for any defects which could only have been discovered by climbing. A full
root collar or root crown inspection, consisting of excavating the soil around the tree to uncover
hidden defects or disease involving the root collar and major buttress roots, was not performed,
unless otherwise stated. Arborist OnSite® cannot accept responsibility for any root defects which
could only have been discovered by such an inspection.
Robert Booty Registered Consulting Arborist 487 24
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
July 6,2022 Level 3 Tree Risk Inspection Black Oak#509 22304 De Anza Circle Cupertino,Ca.
Community Development Department
Planning Division — Cupertino
Certification of Performance CVPERTINo APPROVED
Case# TR-2022-024
Application Number(s)
Approval Body: Director/Staff
I, Robert Booty, certify: Approval Date 07/29/22
Signature Erika Poveda
Case Manager
• That I have personally inspected the tree(s) and/or the property referred to in this report, and have
stated my findings accurately. The extent of the evaluation and or appraisal is stated in the attached report
and the terms and conditions;
• That I have no current 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, and are based on current
scientific procedures and facts;
• 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 subsequent events;
• 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 consultant, except as indicated
within the report.
I further certify that I am a Registered Member of the American Society of Consulting Arborists, and I am
an International Society of Arboriculture Certified Arborist. I have been involved in the practice of
arboriculture and the care and study of trees for over 50 years.
Signed:
Date: July 6, 2022
Robert Booty Registered Consulting Arborist 487 25
ISA Qualified Tree Risk Assessor www.arboristonsite.com
Copyright 2022 Arborist OnSite Horticultural Consulting, Inc.
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