REVIEWED PLN BLD2022-0561+Tree_Retention_or_Preservation_Plan+5.3.2022_4.41.35_PM+2845121BLD2022-0561 TREE
Sharma - Arborist Report — 7.22.2021 RECEIVED FROG
CITY OF EDMONDS
DEVELOPMENT SERVICES
DEPARTMENT
To: Chander Sharma, Ed Pozniak
Job Site: 8422 238th Street SW, Edmonds
Parcel: 00463300900200
Subject: Arborist Report
Date: 7/26/2021
CONSULTING ARBORIST
------- - - - - - -
Reviewed by
City of Edmonds ;
Planning Division
= --------------
From: Andy Crossett, ISA Certified Arborist #PN-7375A, Qualified Tree Risk Assessor, WSNLA
Certified Professional Horticulturist #2537
Assignment
On Friday, July 2"d, 2021, Ed Pozniak from Architectural Innovations contacted me with a request for a tree
inventory report and custom tree protection plan for his client, Chander Sharma's Edmond property. On Tuesday,
July 131h, I walked the site to inspect the trees and document my findings.
A site map can be found below under section 5, labeled: Appendix A— Site Map — Snipped from the provided plot
plan.
Where applicable, I have categorized risk based on the methodologies presented in the International Society of
Arboriculture's Tree Risk Assessment (Best Management Practices).
My responsibilities were to provide the following:
A tree plan that includes a tree inventory, site plan, replanting information (if necessary), tree protection measures
for on -site and off -site trees (where CRZ extends on -site), and recommendations that will meet the minimum city
of Edmonds tree code requirements.
Site Description
The 10,454 square foot lot is located south of 238th Street SW with the driveway exiting north onto 23811 Street
SW. The landscape is mostly turf with a few ornamental small trees and shrubs. The western property line is
bordered with several significant native trees.
Subject Trees — Four (4) trees found on parcel 00463300900200.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 2 of 15
Sharma - Arborist Report — 7.22.2021
1. Summary
Per The City of Edmonds Ordinance 4218 — Tree Retention Requirements, 30% of all significant trees in the
developable site must be retained. As no trees have been proposed for removal, the site will meet retention
requirements.
I have identified and measured all on -site trees to define their critical root zones and limits of disturbance. None of
the on -site trees are located within the footprint of the proposed work and are unlikely to be significantly
impacted during development provided that tree protection recommendations are followed.
Details of the required tree protection measures can be found below under sections 6 (Edmonds specific) and 7
(ISA general guidelines).
2. Details of Risk Assessment
Level 2: Basic Assessment
A level 2 basic assessment is the standard assessment performed for tree risk. The assessment includes a detailed
visual inspection of a tree and its surrounding site, and a synthesis of the information collected. The basic
assessment involves walking completely around the tree — looking at the site, buttress roots, trunk, and branches.
The tree is viewed from a distance, as well as close up, to consider crown shape and surroundings.
Methodology— When identifying potential hazard trees, I must consider a variety of factors that could contribute
to failure. This can include the following: previous history of site failures, topography, site changes, prevailing wind
direction and exposure, tree size and species, growth habit, overall vigor, the density and health of the foliage and
crown, examination of root and root collar health, dead wood, hanging or broken branches, and evidence of
disease -causing bacteria, fungi, or virus.
Tools Utilized: Binoculars, compass, hammer, diameter tape, clinometer.
Timeline — This assessment covers a five-year period and is based on conditions present at the time of the
assessment.
3. Definitions:
DBH - Tree size is measured in Diameter at Breast Height (DBH) — standard forestry methodology for measuring
tree size.
Significant Tree Edmonds - A tree that is at least six (6) inches in diameter at breast height (DBH) as measured at
4.5 feet from the ground. For trees with multiple leaders at four and one-half (4.5) feet height, theDBH shall be the
combined cumulative total of branches greater than six (6) inches diameter at four and one-half (4.5) feet above
the average grade. If a tree has been removed and only the stump remains that is below four and one-half (4.5)
feet tall, the size of the tree shall be the diameter of the top of the stump.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 3 of 15
Sharma - Arborist Report — 7.22.2021
Driplines — Most trees in groves do not have symmetrical driplines. Therefore, drip line radius was measured in the
quadrant assumed to be most affected by future disturbance or where most significant.
Limits of Disturbance — Limits of disturbance shall relate to either Critical Root Zone (CRZ) or Dripline Radius, due
to exceedingly wide drip line radii on some trees being out of proportion to actual tree size. CRZ is measured at 1
foot of distance from center of trunk for every inch diameter at 4.5 feet above grade.
Risk —The combination of the likelihood of an event and the severity of the potential consequences. In the context
of trees, risk is the likelihood of a conflict or a tree failure occurring and affecting a target, and the severity of the
associated consequences — personal injury, property damage, or disruption of activities.
How people perceive risk and their need for personal safety is inherently subjective; therefore, risk tolerance and
action thresholds vary. What is within the tolerance of one person may be unacceptable to another. It is
impossible to maintain trees completely free of risk —some level of risk must be accepted to experience the
benefits that trees provide.
Explanation of Tree Conditions
Poor — A tree described with a poor condition would have a combination of the following features: low vigor,
sparse crown density, and few interior branches. The crown could be unbalanced or contain many dead
twigs/branches. It may also have been topped, tipped, or mal-pruned. The trunk could have cracks,
cavities, conks/mushrooms, and evidence of decay within the tree.
Fair — A fair description would describe a tree with normal vigor and crown density. The tree may possess one or
possibly two of the above listed qualities but overall is in decent health. Improvements of site conditions
could improve the trees health.
Good — Trees listed in good condition will have high vigor with a thick crown density. It would have few, if any
defects, and would be a good example of that specific tree.
Explanation of Risk Ratings
Low— The low -risk category applies when consequences are negligible and likelihood is unlikely; or
consequences are minor and likelihood is somewhat likely.
Moderate — Moderate -risk situations are those for which consequences are minor and likelihood is very likely or
likely; or likelihood is somewhat likely and consequences are significant or severe.
High — High -risk situations are those for which consequences are significant and likelihood is very likely or likely,
or consequences are severe and likelihood is likely.
Extreme — The extreme -risk category applies in situations in which failure is imminent, there is a high likelihood of
impacting the target, and the consequences of the failure are severe.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 4 of 15
Sharma - Arborist Report — 7.22.2021
4. Tree Inventory — Onsite Trees
CRZ / Limits
Average
Overall
Retained
Tree
Parcel
Species
Type
DBH
Dripline
of
N/A
Overall
Risk
or
Comments
ID
(Inches)
Disturbance
Condition
(diameter)
Rating
Removed
(radius)
Douglas fir
84
00463300900200
Pseudotsuga
Evergreen
8
12'
6'
Good
Low
Retain
conifer
menziesii
Recommendation
This tree will require tree protection measures to ensure it is not significantly impacted by construction activities.
Western Redcedar
Evergreen
85
00463300900200
25
30'
15'
Good
Low
Retain
Lion -tailed, mower damage to surface roots.
Thuja plicata
conifer
Recommendation
This tree will require tree protection measures to ensure it is not significantly impacted by construction activities.
Western Redcedar
Evergreen
86
00463300900200
33
30'
15'
Good
Low
Retain
Lion tailed
Thuja plicata
conifer
Recommendation
This tree will require tree protection measures to ensure it is not significantly impacted by construction activities.
Douglas fir
Evergreen
Crown is unbalanced west, ivy climbing up trunk, several dead
87
00463300900200
Pseudotsuga
26
24'
12'
Good
Low
Retain
conifer
eastern branches.
menziesii
Recommendation
This tree will require tree protection measures to ensure it is not significantly impacted by construction activities.
TREE FROG LLC
https://www.treefrogl Ic.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 5 of 15
Sharma - Arborist Report — 7.22.2021
5. Appendix A —Site Map —Snipped from the provided plot plan.
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Example of tree protection fencing.
SITE_ PLAN
40)
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 6 of 15
Sharma - Arborist Report — 7.22.2021
6. 23.10.070 Tree Protection Measures During Development— Edmonds Ordinance No. 4218
"Prior to development activity or initiating tree removal on the site, vegetated areas, individual trees and
soil to be preserved shall be protected from potentially damaging activities pursuant to the following
standards:
A. Preconstruction Meeting Required. Prior to the commencement of any permitted clearing and
grading activity, a preconstruction meeting shall be held on site with the permittee and appropriate
City staff. The project site shall be marked in the field as follows
1. The extent of clearing and grading to occur;
2. Delineation and protection of any critical areas and critical area buffers with clearing limit
fencing;
3. Flagging of trees to be removed and tags on trees to be retained; and
4. Property lines
B. Placing Materials near Trees. No person may conduct any activity within the protected area of any
tree designated to remain, including, but not limited to, operating or parking equipment, placing
solvents, storing building material or stockpiling any materials, or dumping concrete washout or other
chemicals. During construction, no person shall attach any object to any tree designated for
protection.
C. Protective Barrier. Before development, land clearing, grading, filling or any land alteration, the
applicant shall:
1. Erect and maintain readily visible temporary protective tree fencing along the limits of
disturbance which completely surrounds the protected area of all retained trees, groups of
trees, vegetation and native soil. Tree protective fencing shall be a minimum height of three
feet, visible and of durable construction. orange polyethylene laminar fencing is acceptable.
2. Install highly visible signs spaced no further than 15 feet apart along the entirety of the
protective tree fencing. Said sign must be approved by the director and shall state at a minimum
"Tree and Soil Protection Area, Entrance Prohibited" and provide the City phone number for
code enforcement to report violations.
3. Prohibit excavation or compaction of soil or other potentially damaging activities within the
barriers; provided, that the director may allow such activities approved by a qualified
professional and under the supervision of a qualified professional retained and paid for by the
applicant.
4. Maintain the protective barriers in place for the duration of the project until
the director authorizes their removal.
5. Ensure that any approved landscaping done in the protected zone subsequent to the removal
of the barriers shall be accomplished with machinery from outside the protected zone or by
hand.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 7 of 15
Sharma - Arborist Report — 7.22.2021
6. In addition to the above, the director may require the following:
a. If equipment is authorized to operate within the protected zone, the soil and critical
root zone of a tree must be covered with mulch to a depth of at least six (6) inches or
with plywood, steel plates or similar material in order to protect roots and soil from
damage caused by heavy equipment.
b. Minimize root damage by hand -excavating a 2-foot-deep trench, at edge of critical
root
zone, to cleanly sever the roots of trees to be retained. Never rip or shred roots with
heavy
equipment.
c. Corrective pruning performed on protected trees in order to avoid damage from
machinery
or building activity.
d. Maintenance of trees throughout construction period by watering and fertilizing.
D. Grade.
1. The grade shall not be elevated or reduced within the critical root zone of trees to be
preserved without the director's authorization based on recommendations from a qualified
professional. The director may allow coverage of up to one-half (1/2) of the area of the tree's
critical root zone with light soils (no clay) to the minimum depth necessary to carry out grading
or landscaping plans, if it will not imperil the survival of the tree. Aeration devices may be
required to ensure the tree's survival.
2. If the grade adjacent to a preserved tree is raised such that it could slough or erode into the
tree's critical root zone, it shall be permanently stabilized to prevent soil erosion and suffocation
of the roots.
3. The applicant shall not install an impervious surface within the critical root zone of any tree to
be retained without the authorization of the director. The director may require specific
construction methods and/or use of aeration devices to ensure the tree's survival and to
minimize the potential for root -induced damage to the impervious surface.
4. To the greatest extent practical, utility trenches shall be located outside of the critical root
zone of trees to be retained. The director may require that utilities be tunneled under the roots
of trees to be retained if the director determines that trenching would significantly reduce the
chances of the tree's survival.
5. Trees and other vegetation to be retained shall be protected from erosion and sedimentation.
Clearing operations shall be conducted so as to expose the smallest practical area of soil to
erosion for the least possible time. To control erosion, it is encouraged that shrubs, ground
cover and stumps be maintained on the individual lots, where feasible.
6. The director may approve the use of alternative tree protection techniques if those techniques
provide an equal or greater degree of protection than the techniques listed in this subsection.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 8 of 15
Sharma - Arborist Report — 7.22.2021
E. Directional Felling. Directional felling of trees shall be used to avoid damage to trees designated for
retention.
F. Additional Requirements. The director may require additional tree protection measures that are
consistent with accepted urban forestry industry practices."
7. ISA Recommended Tree Protection Information
The Pacific Northwest Chapter of the ISA Recommends the following for protecting trees from damage during
construction.
https://Pnwisa.org/tree-care/damage/protecting-trees-from-damage/
Critical Root Zone Protection
A critical step in retaining healthy trees is the protection of tree roots from disturbance. Each tree has a critical
root zone (CRZ) that varies by species and site conditions. The International Society of Arboriculture defines CRZ as
an area equal to a 1-foot radius from the base of the tree's trunk for each 1 inch of the tree's diameter at 4.5 feet
above grade (referred to as diameter at breast height).
Another common rule of thumb is to use a tree's drip line to estimate the CRZ (see figure). Evaluate both of these
and choose whichever provides the larger CRZ.
Under certain circumstances, disturbing or cutting roots in a CRZ may be unavoidable. In such cases, the work
should be done only under the on -site supervision of an ISA Certified Arborist.
Cutting or disturbing a large percentage of a tree's roots increases the likelihood of the tree's failure or death.
Never cut tree roots that are more than four inches wide; roots that large are usually structural. Cutting them can
destroy the stability of the tree, causing it to fall over!
If you must cut tree roots, do so cleanly with sharp tools. Never tear with a backhoe or other dull instrument. A
clean cut encourages good wound closure and confines the spread of decay. If damage is severe,
consider removing the tree because its stability may have been compromised.
Activities to Avoid in the Critical Root Zone
The CRZ that should be protected from negative interactions. Avoid the following activities:
• Stockpiling construction materials or demolition debris
• Parking vehicles or equipment
• Piling soil and/or mulch
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 9 of 15
Sharma - Arborist Report — 7.22.2021
• Trenching for utilities installation or repair, or for irrigation system installation
• Changing soil grade by cutting or filling
• Damaging roots by grading, tearing, or grubbing
• Compacting soil with equipment, vehicles, material storage, and/or foot traffic
• Contaminating soil from washing out equipment (especially concrete) and vehicle maintenance
• Installing impervious parking lots, driveways, and walkways
• Attaching anything to trees using nails, screws, or spikes
• Wounding or breaking tree trunks or branches through contact with vehicles and heavy equipment
• Wounding trunks with string weed trimmers and lawn mowers
• Causing injury by fire or excessive heat
During Construction
Monitor compliance with tree protection requirements and the impacts of construction activities on tree health
regularly during construction. If there are incursions into the root zone, ensure roots have been severed cleanly,
enforce penalties, and reestablish the protection zone. Confer with your contractors to make sure
that construction offices, vehicular parking, worker break sites, concrete washout areas or other pollutants, and
material storage will remain outside of protected areas. Diligence in maintaining barriers and in enforcing your
protection plan will pay great dividends at the end of the project when the tree is still healthy.
Following the guidelines laid out above will serve in most situations, but occasionally construction plans will
require impingement on the CRZ.
Trenching
Trenching is a standard way to install utilities. It is best to entirely avoid trenching through the CRZ (see figure);
such practice could severely destabilize a tree, as well as adversely affect its health through loss of roots. Workers
performing such operations should understand that 85% of the mass of a tree's root system is located within the
CRZ and that most of a tree's roots are within the top 18 inches of soil. Alter routes of underground infrastructure
or use alternate methods such as pipe boring. Tunneling at least 18 inches beneath the root zone will prevent loss
of critical root mass if underground utilities must unavoidably be placed within the CRZ.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 10 of 15
Sharma - Arborist Report — 7.22.2021
A decision must be made as to where best to locate utility trenches. Planners and designers must be made aware
that trenches may not cross a CRZ and design alternate alignments accordingly; such realignments are not the
responsibility of the construction crew.
Best practices for trenching include the following:
• Protect the trunks of high -value trees from scraping and gouging to a height of at least eight feet.
• Keep equipment and excavated backfill on the side furthest from the tree, not against the trunk.
• Place excavated backfill on a plastic or canvas tarp outside the CRZ.
• Prune away jagged roots back to the trench wall closest to the tree. Use a handheld pruner or pruning
saw to make sharp, clean cuts.
• Replace the backfill on the same day if at all possible. Cover exposed roots with wet burlap to prevent
them from drying out; in hot dry conditions, small roots may be injured in as little as 30 minutes.
• Do not allow chemicals, trash, or other foreign debris to become mixed with the backfill.
• If earthwork specifications allow it, firm the backfill to the same compaction as the surrounding soil and
no more.
• Water the backfill to prevent excessive root drying.
Grade or Ground Level Changes
Grade changes should be avoided in order to prevent serious damage or death to a tree. Fill that is added over
existing soils can smother and kill roots, or invite disease if piled around the trunk. Even temporary fills such as
stockpiling mulch or soil in the CRZ of a tree for as little as several days during the construction process can have
severe, long-term negative effects, though symptoms may not appear for several years.
The extent of injury from adding soil around a tree varies with the kind, age, and condition of the tree; the depth
and type of fill; drainage; and several other factors. Maple, oak and evergreens are most susceptible, while elm,
ash, willow, sycamore, and locust are least affected.
Little can be done to save trees that have been suffering from soil added over an extended period of time. It is
prudent to consider possible damage that may occur to a tree and take alternative action before the fill is made;
prevention is less expensive and more effective than attempting to correct the situation after damage has been
done.
Best practices for fill operations include the following:
• Never place any fill or organic materials directly against the tree.
• Never compact the soil within the CRZ.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 11 of 15
Sharma - Arborist Report — 7.22.2021
• If using no more than two to four inches of fill around existing trees, significant damage may be avoided if
the fill has a coarser texture than the existing soil.
Less damage to a tree's roots is likely with a lowered grade than when it is raised, unless exposing or removing a
great deal of the root mass. A general rule -of -thumb used by landscape architects is to remove no more than six
inches of soil from the existing grade in the CRZ; however, this is dependent on the soils in which the tree is
growing. A tree's roots may all exist in the top foot of a shallow soil; removing the top six inches would have
tremendous negative impact in that case.
Best practices for removing soil include the following:
• Consider removal and replacement if the tree is young, in poor condition, an undesirable species, or very
susceptible to insects and disease.
• Plan grade changes well in advance of construction using the appropriate method to prevent injury to
desirable trees.
• Use retaining walls or terraces to avoid excessive soil loss in the area of greatest root growth.
• Spread mulch over the exposed root area when possible to help prevent soil erosion, reduce moisture
loss, and keep soil temperatures lower.
• Provide supplementary water when rainfall is less than one inch per week.
• Prune roots to prepare the tree for root loss due to grade lowering. Root pruning is best left to an ISA
Certified Arborist, who can take into account the variables necessary to reduce the stress of the pruning
to the tree.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 12 of 15
Sharma - Arborist Report — 7.22.2021
8. Certificate of Performance
I, Andy Crossett, certify that:
• 1 have personally inspected the trees and the property referred to in this report and have stated my
findings accurately.
• 1 have no current or prospective interest in the vegetation or the property that is the subject of this report
and have no personal interest or bias with respect to the parties involved.
• The analysis, opinion, and conclusions stated herein are my own and are based on current industry
standards, scientific procedures and facts.
• My analysis, opinion, and conclusions were developed and this report has been prepared according to
commonly accepted arboriculture practices.
• No one provided significant professional assistance to me, except as indicated within the report.
• My compensation is not contingent upon the reporting of 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.
I further certify that I am a member in good standing of the International Society of Arboriculture (ISA) and an ISA
Certified Arborist (#PN-7375A) and Tree Risk Assessment Qualified. I also am a Certified Professional Horticulturist
through the Washington State Nursery and Landscape Association.
If you have any questions about this report, please contact me at 206-310-8254 or andycrossett@hotmail.com.
Andy Crossett
i
References:
Dirr, Michael A. Manual of Woody Landscape Plants Their Identification, Ornamental Characteristics, Culture,
Propagation, and Use. Stripes Publishing L.L.C., 2009
Smiley, E. Thomas, Nelda Matheny, and Sharon Lilly. Tree Risk Assessment (Best Management
Practices, Second Edition). Champaign: International Society of Arboriculture, 2017.
Dunster, Julian A., E. Thomas Smiley, Nelda Matheny, and Sharon Lilly. Tree Risk Assessment Manual. Champaign,
Illinois: International Society of Arboriculture, 2013.
Shigo, Alex L. A New Tree Biology: Facts, Photos, and Philosophies on Trees and Their Problems and Proper Care.
Shigo and Trees, Associates, 1986.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 13 of 15
Sharma - Arborist Report — 7.22.2021
9. Credentials & Experience
History
I have been involved in the horticulture industry since 2002 - first working as a laborer and eventually becoming
a supervisor for a small landscape company located locally in Bellevue, WA. After working in the field for a few
years, I decided that I would like a formal education. I attended Lake Washington Institute of Technology and in
2011 graduated with a degree in Environmental Horticulture. Immediately after graduating, I took the ISA and
CPH exams to become a certified arborist and certified professional horticulturist. I then moved on to work as a
member of the Street Tree and Irrigation Department for the City of Bellevue. In 2013, 1 opened Tree Frog LLC
and began consulting. I am also the head gardener for a 5 acre estate in Medina, WA.
Education
Lake Washington Institute ofTechnology—Associates Degree, Environmental Horticulture
My education from Lake Washington Institute of Technology's horticulture program focused on the following
areas of study: botany, plant propagation, greenhouse management, soils, pruning, pest and disease
management, landscape design, turf grass management, and plant identification.
Credentials
Certified Professional Horticulturist through the Washington State Nursery & Landscape Association #2537
In 1978, WSNLA created a two -pronged professional certification program that was known as the Washington
Certified Nurseryman or Washington Certified Landscaper. In 2005, WSNLA revamped and upgraded the
certification program and renamed the designation as Certified Horticultural Professional. With nearly 400
Certified Professional Horticulturists, the CPH program is the largest community of state certifications serving
professional horticulturists in Washington State.
To earn a WSNLA Certified Professional Horticulturist credential, you must pass a written exam that tests your
skills and knowledge as a horticultural professional based on study materials and practical applications.
You must provide the equivalent of one year of work experience (2000 hours) with a licensed nursery, landscape
contractor or WSNLA-approved business or institution.
Certified Arborist and Qualified Tree Risk Assessor, through the International Society of Arboriculture #PN-
7375A.
To earn an ISA Certified Arborist° credential, you must be trained and knowledgeable in all aspects of
arboriculture. ISA Certified Arborist® have met all requirements to be eligible for the exam, which includes three
or more years of full-time, eligible, practical work experience in arboriculture and/or a degree in the field of
arboriculture, horticulture, landscape architecture, or forestry from a regionally accredited educational institute.
This certification covers a large number of topics giving the candidates flexibility in the arboricultural profession.
A code of ethics for ISA Certified Arborists® strengthens the credibility and reliability of the work force. This
certification is accredited by the American National Standards Institute, meeting and exceeding ISO 17024.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 14 of 15
Sharma - Arborist Report — 7.22.2021
Continued Education
• Trees and the Law
• Report Writing for Arborists
• Defensible Tree Appraisal
• Developing Field Assessment Skills for Common PNW Tree Diseases
• Climbing Safety Case Studies
• WSNLA PROseries seminar Pest & Disease
• Tree Disorder Diagnosis Online Workshop & Live Discussion
• Why Trees Fail Online Workshop & Live Discussion
• Arbor Chat: A Deep Dive Into the ISA Certified Arborist° Code of Ethics
Volunteering
Dog Mountain Farm, CSA
Dog Mountain Farm serves the Snoqualmie Valley community and Seattle area by providing Certified Naturally
Grown farm -fresh vegetables, fruit, eggs, herbs, and flowers. They also offer educational tours for schools and
groups.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Page 15 of 15
Sharma - Arborist Report — 7.22.2021
10. Assumptions & Limiting Conditions
a) A field examination of the site was made on 7/13/2021. My observations and conclusions are as of
that date.
b) Care has been taken to obtain all information from reliable sources. All data has been verified insofar
as possible; however, the consultant/arborist can neither guarantee nor be responsible for accuracy
of information provided by others.
c) Unless stated otherwise: 1) information contained in this report covers only those trees that were
examined and reflects the conditions of those trees at the time of inspection; and 2) the inspection is
limited to visual examination of the subject trees without dissection, excavation, probing, or coring.
There is no warranty or guarantee, expressed or implied that problems or deficiencies of the subject
tree may not arise in the future.
d) All trees possess the risk of failure. Trees can fail at any time, with or without obvious defects, and
with or without applied stress. A complete evaluation of the potential for this (a) tree to fail requires
excavation and examination of the base of the subject tree. Permission of the current property owner
must be obtained before this work can be undertaken and the hazard evaluation completed.
e) Other trees with similar defects are standing in the neighborhood and have been so for some time.
Trees are living biological organisms, and I cannot predict nor guarantee their stability or failure.
f) Sketches, drawings, and photographs in this report, being intended as visual aids, are not necessarily
to scale and should not be construed as engineering or architectural report of surveys unless
expressed otherwise. The reproduction of any information generated by architects, engineers, or
other consultants on any sketches, drawings, or photographs is for the express purpose of
coordination and ease of reference only. Inclusion of said information on any drawings or other
documents does not constitute a representation by Tree Frog LLC as to the sufficiency or accuracy of
said information.
g) The consultant/appraiser shall not be required to give testimony or attend court because of this
report unless subsequent contractual arrangements are made.
h) Loss or alteration of any part of this report invalidates the entire report.
i) Unless required by law otherwise, 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 to whom it is addressed, without the
prior expressed written or verbal consent of the consultant/appraiser.
TREE FROG LLC
https://www.treefrogllc.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com
Sharma — Arborist Letter—1.6.2022
August 51h, 2021
From:
Andy Crossett
Tree Frog LLC
PO Box 307, Duvall 98019
andycrossett@hotmail.com
http://treefrogllc.com/
To:
Edward Pozniak, Designer
Architectural Innovations, P.S.
14311 SE 16t" Street, 98007
TREE
FROG
LLC
CONSULTING ARBORIST
Mr. Pozniak contacted me with a request to review a minor modification to a house design which may impact an
existing retained tree at the Sharma residence. I had previously visited the site and completed an arborist report
on 7/26/2021. The referenced report was originally labeled as [Sharma - Arborist Report — 7.22.2021.pdf]. The
modification involved moving a backyard deck to the south-west corner of the house and slightly into the north-
west portion of the critical root zone of tree 6. The deck will be up on blocks, and it will be an insignificant
disturbance to the tree. However, I would recommend adjusting the tree protection fencing slightly to account for
this change. This recommendation can be found below.
X I
COVE ED
I PATIO
I
I -
DAR
I � I
Best Regards,
Andy Crossett, CPH
Certified Arborist #PN-7375A
Qualified Tree Risk Assessor
Tree Frog LLC, Consulting Arborist
TREE FROG LLC
https://www.treefrogI Ic.com/
PO Box 307, Duvall, WA 98019
[P] 206-310-8254 [E] andycrossett@hotmail.com