HomeMy WebLinkAboutTR_Arborist_Report_240818_v1 7/6/2024
Client: Dickson Lam
Location: 5313 NE 23rd Ct
Renton, WA 98059
Project Arborist: Sound Tree Care LLC
Eric Ledford,
ISA Certified Arborist PN-9290A
Certified Tree Risk Assessor
Assignment:
Provide a letter form arborist report documenting reasons for removal of Leyland
Cypress trees.
Limitations of Assignment:
This report is limited to a Level 2 Assessment of the site and the trees. It is not a risk
assessment, structural assessment, or comprehensive health assessment. The report is
limited to the scope of the assignment.
Methodology:
To evaluate the tree, as well as to prepare this report, I drew upon my 18+ years of
experience in the field of arboriculture and my formal education. I followed the protocol
of the International Society of Arboriculture (ISA) and I performed my assessment using
and/or considering the following Best Management Practices:
ANSI A300 Part 2 – Soil Management a.) Modification b.) Fertilization & c.) Drainage.
ANSI A300 Part 5 – Managing Trees During Site Planning, Site Development, and
Construction. ANSI A300 Part 8 – Root Management. ANSI A300 Part 9 – Tree Risk
Assessment (Second Edition). ISA BMP’s – Tree Inventories (Second Edition 2013)
Best Management Practices were developed to aid in the interpretation of professional
standards and guide work practices based upon current science and technology. This is
a scientifically based process to look at the entire site, surrounding land, and soil, as
well as a general look at the trees themselves.
Site History:
June 2024 failure of 30’ long branch damaged nearby fence and Japanese maple tree.
These trees appear to be remnants of a hedge.
Pictures and comments:
Tree #12-14 Leyland Cypress; Cuprocyparis leylandii, each 12” DSH, 45’ tall, pictured
July 2024. Targets such as a fence are present within the dripline. These are healthy
trees with 100% live canopy ratio. While healthy, these trees are starting to succumb to
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defects such as overextended branches, codominant leads and included bark. As the
trees age, these defects begin to become more problematic. Due to the damage
caused by the recent failure and the trees questionable condition I recommend removal,
stump grind and replacement of these trees.
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Certification:
I, Eric B. Ledford, Certify to the best of my knowledge:
1.Statements of fact in this report are true and correct.
2.Analysis, opinions, and conclusions are limited to reported assumptions and
conditions. They are my unbiased professional analysis, opinions, and
conclusions.
3.I have no interest in the property or trees that are the subject of this report. I
have no personal interest or bias regarding the parties involved.
4.My analysis, opinions and conclusions reflect conformity with ANSI A300 BMP
and Industry Standards.
5.The report is based on information known at the time of assessment. If more
information becomes available, I may have more or different opinions.
6.The report is based on the analysis at the time of the assessment and covers
only that time frame.
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Thank you for contacting Sound Tree Care LLC for your arboricultural needs.
Eric B. Ledford, ISA Certified Arborist PN-9290A, Certified Tree Risk Assessor
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Tree inventory for Dickson Lam, 5313 NE 23rd Ct tree removal
5313 NE 23rd Ct
Renton, WA 98059
Parcel 803540-0200
STONEGATE TGW UND INT IN TRACTS A, F & J
#Species DSH
“
Condition Tree Credits
1-9 Leyland cypress 24 Good 9x9=81
10 Deodor cedar 20 Good 8
11 Fir 18 Good 7
12 Leyland cypress 12 slated for removal 5
#
1-
9
10
11
12
13
14
15
16
Site plan for Dickson Lam, 5313 NE 23rd Ct tree removal
5313 NE 23rd Ct
Renton, WA 98059
Parcel 803540-0200
STONEGATE TGW UND INT IN TRACTS A, F & J
Lyons
Ave
NE
N
Removal of 3 Leyland cypress, 10” 12” 21” DSH in the left front yard. Trees will be removed,
branches chipped, logs hauled away. This is a residential property, lot size 16992 sq ft. There are
no protected slope, wetland, streams or lakes on this parcel.
After the proposed removals, this lot will still have 107 tree credits, far exceeding the minimum
trees credits per Renton code of 30/acre. No replanting required.
13 Leyland cypress 12 slated for removal 5
14 Leyland cypress 12 slated for removal 5
15 Thundercloud plum 12 Good 5
16 Maple 14 Good 6
Total after removals 107
Species DSH
“
Condition Tree Credits#