HomeMy WebLinkAboutD_ShufenTreeRemoval_v2DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
PLANNING DIVISION
ROUTINE VEGETATION MANAGEMENT PERMIT
EVALUATION FORM & DECISION
DATE OF DECISION: June 26, 2023
PROJECT NUMBER: LUA23-000183, RVMP
PROJECT NAME: Shufen Tree Removal
PROJECT MANAGER: Andrew Van Gordon, Associate Planner
APPLICANT/CONACT: ABC Herron Tree, Attn: Cody Herron
P.O. Box 64, Gold bar, WA 98251
OWNER: Lin Shufen
16623 – 116th Pl SE, Renton, WA 98058
PROJECT LOCATION: 16623 – 116th Pl SE (APN 1423700910)
PROJECT DESCRIPTION: The applicant is requesting approval of an after-the-fact Routine Vegetation
Management Permit (RVMP) to permit removal of 19 significant trees. Of the
19 trees, six (6) Lombardy Poplar were landmark trees; of the remaining 13
significant trees there was one (1) Bitter Cherry, one (1) Bigleaf Maple, three
(3) Douglas Firs and eight (8) Lombardy Poplar. The applicant proposes to
replace the removed trees with 10 native coniferous trees such as Douglas fir
or Sitka Spruce. A Routine Vegetation Management Permit is required for the
removal of three (3) or more significant trees within a one-year period where
tree cutting is not associated with a land development permit. A Routine
Vegetation Management Permit is also required for the removal of any
landmark tree. Per the King County Department of Assessments the property
is 9,750 square feet (0.22 acre) in size. The property is located within the
Residential – 6 (R-6) zone.
CRITICAL AREA: Per COR Maps the property is not encumbered with critical areas or their
buffers.
EXPIRATION DATE: One (1) year from issuance
ROUTINE VEGETATION MANAGEMENT REVIEW CRITERIA 4-9-195D4:
YES 1. The lot shall comply with minimum tree density requirements pursuant to RMC 4-
4-130, Tree Retention and Land Clearing Regulations.
Staff Comments: A minimum of 30 tree credits per net acre and a minimum
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
City of Renton Department of Community & Economic Devel opment Routine Vegetation Management Permit
Shufen Tree Removal LUA23-000183, RVMP
Permit Date: June 26, 2023 Page 2 of 5
retention of 30 percent (30%) of significant trees is required. The project property is
approximately 0.22 acre and would require a minimum of seven (7) tree credits. Per
the arborist report a total of 19 trees were removed. (Attachment 1) Per the
addendum to the arborist report (Attachment 2) nine (9) significant trees worth a
total of 49 tree credits remain on the property.
YES 2. The land clearing and tree removal shall be consistent with restrictions for critical
areas, pursuant to RMC 4-4-130, Tree Retention and Land Clearing Regulations,
and RMC 4-3-050, Critical Areas Regulations.
Staff Comments: Not applicable. Per COR Maps the property is not encumbered
with critical areas or their buffers.
YES 3. Removal of a landmark tree shall meet the review criteria for removal off landmark
tree, pursuant to RMC 4-4-130, Tree Retention and Land Clearing Regulations.
i. The tree is determined to be a high-risk tree; or
ii. The tree is causing obvious physical damage to buildings (over 200 square
feet) driveways, parking lots, or utilities, and it can be demonstrated to
the Administrator’s satisfaction that no reasonable alternative to tree
removal exist, including tree root pruning, tree root barriers, tree cabling,
or preventative maintenance, such as cleaning leaf debris, deadwood
removal, or directional/clearance pruning; or
iii. Removal of tree(s) to provide solar access to buildings incorporating
active solar devices. Windows are solar devices only when they are south-
facing and include special storage elements to distribute heat energy; or
iv. The Administrator determines the removal is necessary to achieve a
specific and articulable purpose or goal of this Title.
Staff Comments: The applicant removed six (6) landmark trees. All six (6) trees
were Lombardy poplar ranging in diameter from 25 inches (25”) to 59.3 inches
(59.3”). Of these six (6) trees, four (4) were identified after the fact as being high -
risk trees (Trees 1, 3, 9 and 14).
As the trees were removed prior to an arborist’s evaluation, the arborist report
relies upon the remaining tree stumps, existing site conditions and Google Earth
images from September 2022. In the images it can be seen that Tree 9 and Tree
14 are dead. Review of the stumps showed that both trees most likely cause of
death was fungal infection and drought stressors. It can also be seen from the
Google Earth image that Tree 1 and Tree 3 exhibit flagging and die back
characteristic of the fungal infection of Tree 9 and Tree 14. Additionally, it can be
seen that the parking lot on 16710 – 116th Ave SE has cracking, buckling and
upheaval most likely from the root systems of Tree 14, which abuts the shared
property line between the two (2) properties.
The arborist report provides further details related to poplar trees stating that
Lombardy poplars generally have short life spans. They come from the
Mediterranean region and are adapted to hot, dry summers and grow poorly in
humid conditions, making them short lived due to fungal diseases. They are not
good landscape trees because they are susceptible to a number of pest and
diseases. Further, they are not appropriate in the urban environment as their roots
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
City of Renton Department of Community & Economic Devel opment Routine Vegetation Management Permit
Shufen Tree Removal LUA23-000183, RVMP
Permit Date: June 26, 2023 Page 3 of 5
are very invasive and shallow which can lift sidewalks, make lawn mowing difficult
and damage drainage and other subsurface utility systems. Based on the size of
the poplars that were on the site they were most likely planted in the late 1960s
to early 1970s and were most likely nearing the end of their life which makes them
more prone to defects and disease.
Removal of landmark trees needs to meet one (1) of the four (4) requirements
stated above. In this instance, Tree 14 is causing obvious damage to a neighboring
parking lot. Due to the Lombardy Poplar’s invasive and shallow root system no
reasonable alternative exists to removal as it is reasonable to expect that the root
system would return to the same area to further damage the area in the future.
The removal of all six (6) landmark Lombardy Poplar is necessary to achieve a
specific and articulable purpose or goal of the Title. The third purpose in RMC 4-4-
130, Tree Retention and Land Clearing Regulations states, “Promote land
development practices that result in minimal adverse disturbance to ex isting
vegetation and soils within the City while at the same time recognizing that certain
factors such as condition (e.g., disease, danger of falling, etc.), proximity to
existing and proposed structures and improvements, interference with utility
services, protection of scenic views, and the realization of a reasonable enjoyment
of property may require the removal of certain trees and ground cover.” Removal
of diseased trees is deemed necessary for the reasonable enjoyment of property.
Further, while Tree 5 and Tree 7 did not display signs of fungal disease, they were
in the same row of poplar trees as Tree 1, Tree 3 and Tree 9 along the northern
property line. Tree 14 was in the southwest corner of the property. Therefore, it is
reasonable to expect that due to the age and location of the trees it would only be
a matter of time before they too succumb to the same fungal infection. As noted
above, the Lombardy Poplars are not appropriate in an urban setting and the
potential for disease spread and infrastructure damage warrants their
replacement with trees that are long lasting, native, and spaced properly.
YES 4. Street frontage and parking lot trees and landscaping shall be preserved unless
otherwise approved by the Administrator.
Staff Comments: Not applicable. The project trees are not street frontage, parking
lot or landscaping tree.
YES 5. The land clearing and tree removal shall not remove any landscaping or protected
trees required as part of a land development permit.
Staff Comments: Not applicable. The trees were not required as part of a land
development permit for landscaping or tree requirements.
YES 6. The land clearing and tree removal shall maintain visual screening and buffering
between land uses of differing intensity, consistent with applicable landscaping
and setback provisions.
Staff Comments: The property is located within the R-6 zone. The western property
line abuts the right-of-way for 116th Ave SE, a minor arterial, and is functionally
the rear of the property. The southwest portion of the property abuts 16710 – 116th
Ave SE which is in the Commercial Arterial (CA) zone and, per the King County
Department of Assessments, is improved with an office building. Along these
property lines 10 significant trees were removed.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
City of Renton Department of Community & Economic Devel opment Routine Vegetation Management Permit
Shufen Tree Removal LUA23-000183, RVMP
Permit Date: June 26, 2023 Page 4 of 5
The applicant proposes to plant 10 native coniferous trees such as Douglas fir or
Sitka Spruce. (Attachment 3) Five (5) of these trees are proposed along the western
property line with an additional two (2) along the southern property line abutting
16710 – 11th Ave SE. The remaining three (3) trees are proposed to be planted
along the northern property line. While the replacement trees are not in the exact
same locations as the removed trees, the spacing and location would promote
health, growth and long-term viability. Additionally, they are large species of trees
that will provide extensive visual screening and buffering at maturity between the
residential on-site use and the abutting commercial use and right-of-way.
The proposed mitigation plan (attachment 3) lacks planting and irrigation
specifications. To ensure long term viability of the new plantings, staff
recommends as a condition of approval that the applicant submit an addendum
to the mitigation plan (attachment 3) that includes Douglas fir, western red cedar
and/or western hemlock or other comparable species as determined by the
Current Planning Project Manager along with specifications for planting,
irrigation, and initial height not less than six (6) feet. To ensure the trees are
planted promptly and at the appropriate time of year outside of summer drought,
staff recommends as a condition of approval the new trees shall be planted
between October 1 and November 30 2023 with a scheduled Planning Division
inspection no later than December 15, 2023 unless otherwise determined by the
Current Planning Project Manager.
YES 7. The land clearing and tree removal shall not create or contribute to a hazardous
condition, such as increased potential for blowdown, pest infestation, disease, or
other problems that may result from selectively removing trees and other
vegetation from a lot.
Staff Comments: Provided documentation did not indicate that the removal of the
trees would create or contribute to a hazardous condition, but instead indicated
that it is a net benefit that the trees have been removed.
YES 8. The land clearing and tree removal shall be consistent with the requirements of
the Shoreline Master Program, pursuant to RMC 4-3-090F1, Vegetation
Conservation, and RMC 4-4-130, Tree Retention and Land Clearing Regulations
Staff Comments: Not applicable. The property is not located within shoreline
jurisdiction.
DECISION: Shufen Tree Removal, LUA23-000183, RVMP, for the removal of 19 significant trees as
shown in the arborist report (Attachment 1) is Approved with Conditions*
and subject to the following conditions:
*CONDITIONS OF APPROVAL:
1. The applicant shall submit an addendum to the mitigation plan (attachment 3) that includes
Douglas fir, western red cedar and/or western hemlock or other comparable species as
determined by the Current Planning Project Manager along with specifications for planting,
irrigation, and initial height not less than six (6) feet.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
City of Renton Department of Community & Economic Devel opment Routine Vegetation Management Permit
Shufen Tree Removal LUA23-000183, RVMP
Permit Date: June 26, 2023 Page 5 of 5
2. The new trees shall be planted between October 1 and November 30 2023 with a scheduled
Planning Division inspection no later than December 15, 2023 unless otherwise determined by
the Current Planning Project Manager.
SIGNATURE & DATE OF DECISION:
________________________________________ ____________________________________
Vanessa Dolbee, Planning Director Date
RECONSIDERATION: Within 14 days of the decision date, any party may request that the decision be
reopened by the approval body. The approval body may modify his decision if material evidence not
readily discoverable prior the original decision is found or if he finds there was misrepresentation of
fact. After review of the reconsideration request, if the approval body finds sufficient evidence to
amend the original decision, there will be no further extension of the appeal period. Any person wishing
to take further action must file a formal appeal within the 14-day appeal time frame.
APPEALS: Appeals of permit issuance must be filed in writing on or before 5:00 p.m. on July 10, 2023. An
appeal of the decision must be filed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680).
Appeals must be submitted electronically to the City Clerk at cityclerk@rentonwa.gov or delivered to City Hall
1st floor Lobby Hub Monday through Friday. The appeal fee, normally due at the time an appeal is submitted,
will be collected at a future date if your appeal is submitted electronically. The appeal submitted in person may
be paid on the first floor in our Finance Department. Appeals to the Hearing Examiner are governed by RMC 4-
8-110 and additional information regarding the appeal process may be obtained from the City Clerk’s Office,
cityclerk@rentonwa.gov.
EXPIRATION: The Routine Vegetation Management Permit shall be valid for one (1) year from the date of
decision. An extension may be granted by the Planning Division for a period of one (1) year upon
application by the property owner or manager. Application for such an extension must be made at least
30 days in advance of the expiration of the original permit and shall include a statement of justification for
the extension. The Critical Area Exemption expires two (2) years from the date of decision.
Attachments:
Attachment 1: Arborist Report, authored by Cody Herron, April 9, 2023
Attachment 2: Addendum to the Arborist Report, authored by Cody Herron, May 9, 2023
Attachment 3: Mitigation Plan, authored by Cody Herron, May 23, 2023
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
6/26/2023 | 4:21 PM PDT
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Certified Tree Risk Assessor (TRAQ)
Journeyman Tree Trimmer
ISA certified Arborist PN-6967A
April 9, 2023
Attn: Eric Petzold, Code Compliance Inspector
City of Renton
1055 South Grady Way
Renton, WA 98057
RE: Property Owner: Lin Shufen
Site Address: 16623 116th Pl SE, Renton, WA
Parcel# 1423700910
9,750 sq ft Lot Area
Dear Mr. Petzold,
ABC Herron Tree LLC is pleased to submit this report compiling the visual Tree Risk and
Evaluation Assessments performed on trees located on Parcel 1423700910 at 16623 116th Pl SE,
Renton as shown on the site map in my report.
Tree Inventory assessments were made in accordance with American National Standards
Institute (ANSI) A300 Part 5 standards. Visual Tree Assessments is an outlined process in
accordance with Tree Risk Assessment Qualification (TRAQ) program and is a recognized
standard of care by the International Society of Arboriculture (ISA) to evaluate tree health and
risk.
I have included a detailed report of my findings below, along with an inventory styled matrix
covering overall tree measurement and characteristics. Please feel free to contact me with any
questions you may have.
Yours,
Cody Herron
EXHIBIT 1
RECEIVED
PLANNING DIVISION
04/17/2023
AVanGordon
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Contents:
• Assignment
• Personal qualifications, scope of work and methodology
• Methods used to determine tree location and tree health
• GPS Coordinates
• Site Map
• Critical Areas Map
• Photos
• Tree Assessment Matrix
• Discussion and conclusion
• Revegetation Plan
• References
• Waiver of Liability
Assignment
On April 4, 2023 I was asked to assist with addressing a notice of Tree Violation – CODE23-
000102 regarding trees located on or near the property at 16623 116th Pl SE, Renton parcel
1423700910 per the King County Assessor. This report is valid for a one-year time frame.
Personal qualifications, scope of work and methodology:
The knowledge I used to evaluate the trees comes from over 20 years of experience in the
tree care industry, including two years of schooling from South Seattle Community College.
I am a recognized Journeyman Tree trimmer with 12 years of experience through the
International Brotherhood Electrical Workers (IBEW). I also have over 10 years’ experience
as an ISA certified arborist, including six years working for Snohomish County Public Utility
District (PUD) as an arborist. I am currently employed by King County as a Vegetation
Specialist Arborist for Road Services Division. I have also worked for Seattle City Light and
Washington State Department of Transportation in performing tree maintenance and
general vegetation management, mitigation, and noxious weed control. In addition to my
experience and ISA certification maintained in good standing, I am also TRAQ certified (Tree
Risk Assessment Qualified). I have relied on my training in these areas to perform the duties
outlined.
I followed the protocol delineated by the ISA for Level 2 Visual Assessment Process. By
doing so I am examining each tree independently as well as collectively as groups or stands
of trees provide stability and can lower risk of independent tree failure. This scientific
process examines tree health (e.g., size, vigor, and insect and disease process) as well as site
condition (soil, conditions, nursery stumps, anaerobic conditions, etc.).
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
A key part of tree risk assessment is to categorize the likelihood of failure of one or more
branches, the stem, or the roots. Visual assessment includes looking for and determining
the significance of the defects and structural conditions. Some structural defects or
conditions are more likely to lead to failure than others. Individual defects or conditions
may not by themselves indicate a serious structural problem, but in combination with other
conditions they may contribute to failure.
All tree species have widely varying lifespans and tolerance capabilities to wound healing
from damage caused by biotic and abiotic forces. Knowledge of failure patterns (disease,
lifespan, environmental conditions, and species characteristics) associated with different
species is critical in making effective reports.
Methods used to determine tree location and tree health:
Tree diameter was measured with a forester’s tape. Tree dripline and height and other
target distances were measured with a Nikon Pro laser range finder or tape shown in Figures
1 & 2. Trees are tagged with pink ribbon and Dymo Rhino aluminum labeler numerical
impression in Figure 3. All measurements and notes are recorded in digital format on site.
Forest Metrix software is used to record the data and pictures to help illustrate the findings,
see Site Map and Tree Assessment Matrix photos.
Figure 1 Figure 2 Figure 3
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
GPS coordinates (not official survey, visual aid only) see Table 1.
Tree # Species Latitude Longitude
1 Lombardy poplar 47.45349587784356 -122.18566893844195
2 Lombardy poplar 47.45348874598055 -122.18569053771947
3 Lombardy poplar 47.45348808272724 -122.18571642113271
4 Bigleaf maple 47.4534794767177 -122.18573395134241
5 Lombardy poplar 47.453488739545726 -122.18578451550908
6 Lombardy poplar 47.45347966628984 -122.18581333048422
7 Lombardy poplar 47.45346610575676 -122.18584220193806
8 Lombardy poplar 47.4534555390692 -122.18586129117591
9 Lombardy poplar 47.45345634074771 -122.18588700322844
10 Lombardy poplar 47.45341971901015 -122.18588190065168
11 Lombardy poplar 47.45338660762772 -122.18590048600454
12 Lombardy poplar 47.45333623996899 -122.18585915592384
13 Lombardy poplar 47.45331266207016 -122.18583903935622
14 Lombardy poplar 47.45325235701165 -122.18586586144637
15 Lombardy poplar 47.45325621812529 -122.18583761444188
16 Douglas fir 47.45328454994623 -122.1858350160427
17 Douglas fir 47.45328454994623 -122.1858350160427
18 Douglas fir 47.45343416045778 -122.18586275936353
19 Cherry 47.453437888382076 -122.18583683049292
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Site Map Figure 4 This is for visual aid only and does not represent a professional survey.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Critical Areas Map Figure 5 Per the City of Renton GIS map there are no critical areas on this parcel.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Photo 1 Figure 6
This is a photo of the front yard of the address 16623 116th Pl SE from Google Earth Sept 2022. Photo shows tree death and die back.
Likely caused by fungal infection.
Tree #14 Tree #1. Notice the flagging
on the limb and die back tree
was most likely infected with
same pathogen as tree #’s 14
and 9,
Trees #’s 2 & 3 also
exhibit same fungal
infection that killed
trees 9 and 14.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Photo 2 Figure 7 This is a photo taken from behind 16623 from 116th Ave SE the house using Google earth imagery from September
2022. This photo clearly shows complete tree death of trees #’s 9 & 14. These would be considered High risk.
Tree #14
Tree #9
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Photo 3 Figure 8
Upheaving and cracking damage from roots can be seen in the parking lot of 16710 116th Ave SE, to the south of the subject
property as show in the map in Figure 5 above. This is likely caused by tree #14. Sidewalk damage can also be easily observed.
Cracking and
upheaval is
pronounced in
this area.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Assessment Matrix
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
1 Lombardy
poplar
Populus nigra
-Italica-
54.0 5.0 54.0 Dead Dead High 2 Tree Inventory
Removal due to fungal infection and
canopy die back present.
This tree has been high stumped at about 5 feet DBH measurement was taken at this height. This would could be considered a
landmark tree. From the Google Imagery photos in Figure 6 taken September and tree 9 &er 2022 this tree appears to have some
flagging and die back in the canopy. Tree is dying and likely infected with same fungal presence 14.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
2 Lombardy
poplar
Populus nigra
-Italica-
16.6 5.0 16.6 Dead Dead High 2 Tree Inventory
Removal due to fungal infection and
canopy die back present.
This tree is a two-stemmed adjusted DBH. DBH was taken about 3 feet above ground. From the Google Imagery photos in Figure 6
taken September 2022 this tree appears to have some flagging and die back in the canopy.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
3 Lombardy
poplar
Populus nigra
-Italica-
33.0 5.0 33.0 Dead Dead High 2 Tree inventory.
Removal due to fungal infection and canopy
die back present.
This tree is a three-stemmed adjusted DBH. The DBH for this tree was taken about 3 feet above ground. From the Google Imagery
photos in Figure 6 taken September 2022 this tree appears to have some flagging and die back in the canopy.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
4 Bigleaf maple
Acer
macrophyllum
20.0 5.0 20.0 Dead Dead High 2 Tree Inventory
Tree has extensive cavity rot of about 30%
removal would be warranted. See below.
This tree has some decay in the center of the tree and looks to be unviable. The DBH for this tree was taken about 2 1/2 feet above
ground
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
5 Lombardy
poplar
Populus nigra
-Italica-
32.0 5.0 32.0 Dead Dead Low 2 Tree Inventory
This DBH was taken about 2 1/2 feet above ground. At DBH or 4.5’ height this measurement would not be landmark size. This
would likely not be a land mark tree if measurement was taken at proper DBH. Satellite images do not show any significant
physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
6 Lombardy
poplar
Populus nigra
-Italica-
20.0 5.0 20.0 Dead Dead Low 2 Tree Inventory
This DBH was taken about 2 feet off the ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
7 Lombardy
poplar
Populus nigra
-Italica-
25.0 5.0 25.0 Dead Dead Low 2 Tree Inventory
This DBH was taken about 2 1/2 feet above ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
8 Lombardy
poplar
Populus nigra
-Italica-
13.0 5.0 13.0 Dead Dead Low 2 Tree Inventory
The DBH was taken about 2 feet off the ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres. Value Recommendations
9 Lombardy
poplar
Populus nigra
-Italica-
59.3 5.0 83.9 Dead Dead High 2 Tree Inventory
Removal due to fungal infection and
canopy die back present. Tree is
completely dead inf figure 7 or report.
These measurements were taken from range at 3 1/2 feet to 4 feet above ground. This is a three-stemmed adjusted DBH tree. This
tree would likely count as a landmark sized tree. In photos taken from Google Imagery captured September 22 as shown in figure 7,
this tree was in poor condition.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
10 Lombardy
poplar
Populus nigra
-Italica-
19.0 5.0 19.0 Dead Dead Low 2 Tree Inventory
This DBH was taken 6 inches above ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
11 Lombardy
poplar
Populus nigra
-Italica-
17.0 5.0 17.0 Dead Dead Low 2 Tree Inventory
This DBH was taken flush to the ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
12 Lombardy
poplar
Populus nigra
-Italica-
16.5 5.0 16.5 Dead Dead Low 2 Tree Inventory
This DBH was taken 6 inches above ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
13 Lombardy
poplar
Populus nigra
-Italica-
16.0 5.0 16.0 Dead Dead Low 2 Tree Inventory
This DBH was taken 6 inches above ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres. Value Recommendations
14 Lombardy
poplar
Populus nigra
-Italica-
56.6 5.0 80.0 Dead Dead High 2 Tree Inventory
Removal due to fungal infection and
canopy die back present. Tree is
completely dead inf figure 7 or report.
This is a four-stemmed tree with an adjusted DBH. These measurements were taken from 3 feet 3 1/2 feet and 5 feet above
ground. This tree was completely dead as shown in Google Imagery photos taken September 22 as shown in Figure 7. This tree is
completely dead. Most likely cause is fungal infection and drought stressors.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
15 Lombardy
poplar
Populus nigra
-Italica-
14.0 5.0 14.0 Dead Dead Low 2 Tree Inventory
This measurement was taken 6 inches above ground. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
This tree would likely not be considered a significant sized tree at 6” DBH if measurement was taken at the proper DBH
height of 4.5’. Satellite images do not show any significant physiological changes.
Dead Dead Low
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
This DBH was taken at 2 inches above ground. It is likely that this tree would not be considered a significant tree due to its
relatively small size and if DBH measurements were taken at the proper height of 4.5’ above ground. Satellite images do not
show any significant physiological changes.
Dead Dead Low
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
This DBH was taken at 2 inches above ground. It is likely that this tree would not be considered a significant tree due to its
relatively small size and if DBH measurements were taken at the proper height of 4.5’ above ground. Satellite images do not show
any significant physiological changes.
Dead Dead Low
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Tree Species DBH
(in) Drip (ft) CRZ
(ft) Condition Structure Risk Pres.
Value
Recommendations
19 Bitter Cherry
Prunus
emarginata
6.0 5.0 6.0 Dead Dead Low 2 Tree Inventory
This measurement was taken 2 inches above ground. This tree would not be considered a significant tree at proper DBH
measurement. Satellite images do not show any significant physiological changes.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Discussion and Conclusion
I arrived on site at about 10:30 am on April 7, 2023 and met with Felicia Ng of Skyway General
Contractors to examine several trees. Trees are indicated on the site with pink ribbon and numerical
indications. Per the City of Renton GIS Web Map in Figure 5 above, these trees are not in an
Environmentally Critical Area (ECA) and/or buffer. There is no development occurring at this property.
This is an established residential lot.
Renton Municipal Code (RMC) 4-11-200 defines trees as follows:
“TREE: A woody perennial usually having one dominant trunk, or, for certain species, a multi-
stemmed trunk system, with a potential minimum height of ten feet (10') at maturity. Any trees
listed on the Complete King County Weed List shall not qualify as a tree.
A. Tree, High-Risk: Any tree that has been certified in a written arborist report, prepared by
an arborist with ISA Tree Risk Assessment Qualification (TRAQ), as possessing the following
ISA Tree Risk Assessment characterizations:
1. The tree has a probable or imminent likelihood of failure; and
2. The tree has a medium or high likelihood of impact; and
3. The consequences of failure for the tree are significant or severe.
B. Tree, Landmark: A tree with a caliper of twenty four inches (24") or greater, except for big
leaf maples, black cottonwoods, and red alder trees, which qualify as landmark trees with a
caliper of thirty inches (30") or greater.
C. Tree, Protected: A significant tree identified to be retained, or a new tree required to be
planted, as a condition of approval for a land development permit.
D. Tree, Significant: A tree with a caliper of at least six inches (6"), except alder or
cottonwood trees, which qualify as significant trees with a caliper of eight inches (8") or
greater. Trees certified as high-risk shall not be considered significant.
E. Tree, Small Species: A tree with a mature height of thirty feet (30') or less.
F. Tree, Medium Species: A tree with a mature height between thirty feet (30') and fifty feet
(50').
G. Tree, Large Species: A tree with a mature height of fifty feet (50') or more.”
Per RMC 4-4-130.C the following activities are allowed without a vegetation management permit:
“2. High-Risk Trees: Removal of a high-risk tree, as defined in RMC 4-11-200, Definitions T,
that has been certified as such by an arborist with an International Society of Arboriculture
(ISA) Tree Risk Assessment Qualification (TRAQ), provided the removal is limited to three (3)
high-risk trees within a one-year period and no landmark trees are proposed for removal. A
routine vegetation management permit is required for the removal of more than three (3) high-
risk trees within a one-year period and for the removal of high-risk landmark trees.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
9. Minor Tree Removal Activities: Removal of up to two (2) significant trees within a one-
year period, but no more than five (5) significant trees within a five (5) year period, provided
the removal is conducted in accordance with the following requirements:
a. There is no active land development permit, as defined in RMC 4-11-120, Definitions L, or
submitted application for said permit, for the subject site;
b. The tree proposed for removal is not a protected tree or a landmark tree, as defined in
RMC 4-11-200, Definitions T;
c. The tree proposed for removal is not located within ten feet (10') of a surface parking lot with
ten (10) or more parking spaces;
d. The tree proposed for removal is not one of the only two (2) significant trees remaining on
the lot, unless identified as a high-risk tree, consistent with subsection C2 of this Section;”
Per RMC 4-4-130.E the removal of a landmark tree may be granted for situations where:
“i. The tree is determined to be a high-risk tree; or
ii. The tree is causing obvious physical damage to buildings (over two hundred (200)
square feet), driveways, parking lots, or utilities, and it can be demonstrated to the
Administrator’s satisfaction that no reasonable alternatives to tree removal exist, including
tree root pruning, tree root barriers, tree cabling, or preventive maintenance, such as
cleaning leaf debris, deadwood removal, or directional/clearance pruning;”
Tree numbers - 1,2,3,4,9 and 14 would have all been considered hazard trees due to their high risk or
failure and target potential. This information was gathered by photo imagery and stump findings
detailed in the matrix. Also see further explanation of Poplar tree risk and disease issues below.
Trees numbers- 5,6,7,8 ,10,11,12,13, and 15 would likely be held in violation due to their size and
unknowable conditions prior to removal. The focus of mitigation in my opinion, should be in regards to
these trees. Of further note Tree #5 should not be considered a landmark size due to measurements
taken below 4.5’ or DBH level. This tree would likely be around 28” in my estimation.
Tree numbers – 16, 17, 18 and 19 should not be considered significant sized trees due to their DBH
thresholds. Many of these tree measurements were taken and grade level and would not meet the 6”
standard at DBH or 4.5’ height measurement. These trees should not be considered in this violation as
they do not meet the requirements of a significant tree per RMC 4-11-200.
Table 2 on the following page provides a visual chart of the above classifications.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Table 2
Tree Species DBH (in inches) Landmark Tree Significant Tree Hazard Tree 1 Lombardy poplar 54
2 Lombardy poplar 16.6
3 Lombardy poplar 33
4 Bigleaf maple 20
5 Lombardy poplar 32
6 Lombardy poplar 20
7 Lombardy poplar 25
8 Lombardy poplar 13
9 Lombardy poplar 59.3
10 Lombardy poplar 19
11 Lombardy poplar 17
12 Lombardy poplar 16.5
13 Lombardy poplar 16
14 Lombardy poplar 56.6
15 Lombardy poplar 14
16 Douglas fir 9
17 Douglas fir 9
18 Douglas fir 9
19 Bitter cherry 6
According to RMC 4-4-130.C three non-landmark hazard trees and two significant trees can be
removed from a property without a permit. Trees 2 & 4 are hazard trees of significant size, so those
trees should not be considered in the violation. Two of trees 5, 6, 7, 8, 10, 11, 12, 13 and 15 are trees
of significant size and should not be considered in the violation. The vegetation management permit
for this property should include the removal of seven trees of significant size, and four hazard trees of
landmark size (trees 1, 3, 9 & 14). These four landmark trees meet the criteria for removal under RMC
4-4-130.E.
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
All of the trees observed had multiple historic failures with some showing outward signs of disease and
pests. Many of the trees have caused damage by limb failure to property on the north and west side of
property. Some of the damages affected fencing and outbuilding structures. Some of the roots have
caused damages to lawn and backyard of the property at 16623 116th Pl SE and the parking lot area of
the adjacent property 16710 116th Ave SE, Renton, WA. Side walk damage can also be observed along
116th Ave SE on the west side of property.
The Lombardy poplar generally have a short life span. It is my guess that most of the trees were
planted in the late 60’s to early 70’s as a means of quickly growing privacy barrier to the main roadway
of 116th Ave SE and neighboring properties. If that is the case many of these trees would likely be
nearing the end of their life cycle and being more prone to defects and disease.
“Poplars are not good landscape trees because they are susceptible to a number of pests and diseases
as well as other cultural problems. Insect problems include aphids, borers, caterpillars, and scale.
Cankers are problematic especially in hot and humid climates. Cytospora canker attacks the upper
branches of the tree and trunk and is often fatal. Dieback, leaf spots, rusts, and powdery mildew are
other diseases problems. Weak wood is easily damaged by wind and shallow roots can lift sidewalks,
make lawn mowing difficult, and damage drainage systems. Frequent clean-up is required from the
endless amount of falling leaves and twigs. To quote Michael Dirr from his popular book Manual of
Woody Landscape Plants, "if anyone plants poplars, they deserve the disasters which automatically
ensue.” See link below-
https://plants.ces.ncsu.edu/plants/populus-nigra/
Per Bean, W. J. (1980). Trees and Shrubs Hardy in the British Isles Vol. 3. John Murray ISBN 0-7195-
2427-X “'Italica' is the true Lombardy poplar, selected in Lombardy, northern Italy, in the 17th century.
The growth is fastigiate (having the branches more or less parallel to the main stem), with a very
narrow crown. Coming from the Mediterranean region, it is adapted to hot, dry summers and grows
poorly in humid conditions, being short-lived due to fungal diseases. It is a male clone.[10] As a widely
selected species chosen by golf architects[where?] in the 1960s, it soon became apparent that the
poplar's very invasive roots destroyed land drainage systems. Decades later, the same courses were
removing poplar stands wholesale. Around 40 to 50 years, this short-lived variety starts shedding
branches and is very likely to be blown over in high winds, each successive tree lost exposing
neighboring trees, creating a domino effect.” See link below-
https://en.wikipedia.org/wiki/Populus_nigra
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Revegetation Plan
Per RMC 4-4-130.F.2.b:
“Trees removed in excess of the maximum amount allowed under subsection C9 of this
Section, Minor Tree Removal Activities, shall be subject to RMC 4-4-130H1e, Replacement
Requirements, unless determined by the Administrator to be unfeasible in the specific case.”
As stated above in the Discussion and Conclusion section, according to RMC 4-4-130.C three non-
landmark hazard trees and two significant trees can be removed from a property without a permit.
Trees 2 & 4 are hazard trees of significant size, so those trees should not be considered in the violation.
Two of trees 5, 6, 7, 8, 10, 11, 12, 13 and 15 are trees of significant size and should not be considered
in the violation. The vegetation management permit for this property should include the removal of
seven trees of significant size, and four hazard trees of landmark size (trees 1, 3, 9 & 14). These four
landmark trees meet the criteria for removal under RMC 4-4-
130.E.
In other words, seven trees of significant size and four trees
of landmark size would be subject to replacement
requirements.
The violation dated 3/20/23 states “c. Tree Replacement
Quantity: For each tree that was improperly cut in violation
of code, replacement planting shall occur at a rate based on
the credit value of the tree(s) removed pursuant to RMC 4-4-
130.H.1.b.v.”
Table 3 shows the credit value for the trees removed.
Table 3 from RMC 4-4-130.H.1.b
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
For purposes of clarity, let’s say trees 5 & 6 are the two trees of significant size that were removed
without needing a permit as outlined above. That leaves significant trees 7, 8, 10, 11, 12, 13 and 15 to
be considered for replacement trees, in addition to landmark trees 1, 3, 9 & 14. Table 4 shows a chart
calculating the tree credits per the chart in Table 3.
Table 4 Tree Species DBH (in inches) Tree Credits Landmark Significant 1 Lombardy poplar 54 13
3 Lombardy poplar 33 12
7 Lombardy poplar 25 10
8 Lombardy poplar 13 6
9 Lombardy poplar 59.3 13
10 Lombardy poplar 19 8
11 Lombardy poplar 17 7
12 Lombardy poplar 16.5 7
13 Lombardy poplar 16 7
14 Lombardy poplar 56.6 13
15 Lombardy poplar 14 6
Total 102
If the property owner were to plant all large species trees at 2 tree credits per tree this would equal 51
trees. This is a residential lot of 9,750 square feet, and planting 51 large species trees on this property
would be inadvisable and infeasible. Even a mix of large and small species trees would be inadvisable –
this lot is not large enough to support that many trees.
Instead, in this situation we would like the Administrator to consider allowing the requirements of a
routine vegetation management permit to apply to this project under RMC 4-9-195.D.4. This would
require the retention of minimum tree credits pursuant to RMC 4-4-130 and some possible
supplemental plantings. Per RMC 4-4-130 “tree credit requirements shall apply at a minimum rate of
thirty (30) credits per net acre.” This lot of 9,750 square feet would be considered 0.22 square acres.
30 x 0.22 = 6.6, rounded up = 7 tree credit requirements
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
There are remaining trees on this property of 6 caliper inches or greater that would more than satisfy
the 7 tree credit requirement per the chart in Table 3 above.
In addition to retaining the remaining trees, I would suggest at least four native large species trees be
planted to mitigate for the four landmark trees. These four trees should be tagged, ribboned or
flagged so they can be located in the future and to ensure identification by an inspector. The name of
each species should be written in permanent marker on the flags, tags or ribbons. The trees should be
planted and maintained per the instructions in the United States Department of Agriculture Tree
Owner’s Manual (Adapted to the City of Renton) available on the city’s website at https://cdnsm5-
hosted.civiclive.com/UserFiles/Servers/Server_7922657/File/City%20Hall/Community%20Services/Pa
rks%20Planning%20and%20Natural%20Resources/Urban%20Forestry/TreeOwnersManual_Readable.
pdf
We are looking forward to working with the city to conclude this violation and penalties .
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16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
References:
ANSI Z133.1-2000 ANSI A300 (Pat 1) – 2008 American National Standards Institute. ANSI A300 part 5 & BMP Managing
Trees During Construction second edition 2016 Kelby Fite, Thomas Smiley.
American National standard for Tree Care Operations: Tree, Shrub and Other Woody Plant Maintenance: Standard Practices
(Pruning). New yok: Tree Care Industry Association, 2008. Coder, Dr. Kim D. Construction
Damage Assessments: Tree and Sites. University of Georgia. October 1996. Ashley, Burl S. 1980 Reference handbook
for foresters. USDA NA-FR-15. 35 pp. Dirr, Michael A.
Manual of Woody Landscape Plants, Their Identification, Ornamental Characteristics, Culture, Propagation, and Uses.
Champaign: Stipes Publishing Company, 1990. Dunster & Associates Environmental Consultants Ltd.
Assessing Trees in Urban Areas and the Urban- Rural Interface. US Release 1.0. Silverton: Pacific Northwest Chapter
ISA, 2006. Dunster, J. A. 2003.
Preliminary Species Profiles for Tree Failure Assessment. Bowen Island: Dunster & Associates Environmental Consultants
Ltd. Dunster, Julian A., E. Thomas Smiley, Nelda Matheny, and Sharon Lilly.
Tree Risk Assessment Manual. Champaign, Illinois: International Society of Arboriculture, 2013. Harris, Richard W, James
Clark, and Nelda Matheny. Arboriculture,
Integrated Management of Landscape Trees, Shrubs, and Vines. 4th ed. Upper Saddle River: Prentice Hall, 2004. Lilly,
Sharon.
Arborists’ Certification Study Guide. Champaign, IL: The International Society of Arboriculture, 2001. Matheny, Nelda
and Clark, James R.
A Photographic Guide to the Evaluation of Hazard Trees in Urban Areas. Second Edition. Champaign, IL: The International
Society of Arboriculture, 1994. Matheny, Nelda and Clark, James R.
Trees and Development: A Technical Guide to Preservation of Trees during Land Development. Champaign, IL: The
International Society of Arboriculture, 1998. Mattheck, Claus and Breloer, Helge. The Body Language of Trees: A Handbook
for Failure Analysis. London: HMSO, 1994 Schwarze, Francis W.M.R.
Diagnosis and Prognosis of the Development of Wood Decay in Urban Trees. Australia: ENSPEC Pty Ltd. 2008 Sinclair,
Wayne A., Lyon, Howard H., and Johnson, Warren T.
Diseases of Trees and Shrubs. Ithaca, New York: Cornell University Press, 1987.Prince,
Susan Duvall Visual Tree Assessment Feb 2018. Smiley, E. Thomas, Nelda Matheny, and Sharon Lilly, Tree Risk
Assessment Best Management Practices, ANSI A300 Part 9: Tree, Shrub, and Other
Woody Plant Management— Standard Practices (Tree Risk Assessment: Tree Structure Assessment). The
International Society of Arboriculture Press. Champaign. IL. 2011. Thies, Walter G. and Sturrock, Rona N.
Laminated root rot in Western North American. United States Department of Agriculture. Pacific Northwest. Resource
Bulletin PNW-GTR-349. April 1999. USDA Regions 6
Root Diseases in Oregon and Washington Conifers James S. Hadfield, Donald J. Goheen, Gregory M. Filip, Craig L. Schmitt,
Robert D. Harvey
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Waiver of Liability
There are many conditions affection a tree’s health and stability, which may be present and cannot be
ascertained, such as, root rot, previous or unexposed construction damage, internal cracks, stem rot and more
which may be hidden. Changes in circumstances and conditions can also cause a rapid deterioration of a trees’
health and stability. Adverse amount of time. While I have used every reasonable means to examine these trees,
this evaluation represents my opinion of the tree health at this point in time. These findings do not guarantee
future safety nor are they predictions of future events.
Any legal description provided to the consultant-appraiser is assumed to be correct. Any titles and ownerships
to any property are assumed to be good and marketable. No responsibility is assumed for matter legal in
character. Any and all property is appraised or evaluated as though free and clear, under responsible ownership
and competent management the tree evaluation consists of an external visual inspection of an individual tree’s
root flare, trunk, and canopy from the ground. Care has been taken to obtain all information from reliable
sources. All data has been verified insofar as possible; however, the consultant/appraiser can neither guarantee
nor be responsible for the accuracy of information provided by others.
Sketches, maps, diagrams, graphs and photographs in this report, being intended as visual aid, are not
necessarily to scale and should not be construed as engineering or architectural reports or survey.
As conditions change, it is the responsibility of the property owners to schedule additional site visits by the
necessary professionals to ensure that the long-term success of the project is insured. It is the responsibility of
the property owner to obtain all required permits form city, county state, for federal agencies. It is the
responsibility of the property owner to comply with all applicable laws, regulations, and permit conditions. If
there is a homeowner’s association, it is the responsibility of the property owner to comply with all Codes,
Covenants, and Restrictions (CC&R’s) that apply to tree pruning and tree removal.
This tree evaluation is to be used to inform and guide the client in the management of their trees. This in no way
implies that the evaluator is responsible for performing recommended actions or using other methods or tools
to further determine the extent of internal tree problems without written authorizations from the client.
Furthermore, the evaluator in no way holds that the opinions and recommendations are the only actions
required to ensure that the tree will not fail. A second opinion is recommended. The client shall hold the
evaluator harmless for any and all injuries of damages incurred if the evaluator’s recommendations are not
followed of for acts of nature beyond the evaluator’s reasonable expectations, such as severer winds, excessive
rains, heavy snow loads, etc.
The consultant/appraiser shall not be required to give testimony or to attend court by reason of the report
unless subsequent contractual arrangements are made including payment of an additional fee for such services
as described in the fee schedule and contract of engagement
This report and all attachments, enclosures, and references, are confidential and are for the use of the client
concerned. Loss or alteration of any part of this report invalidates the entire report. They may not be
reproduced, used in any way of dispersed in any form without the prior consent of the client concerned and ABC
Herron Tree LLC. This report constitutes a whole. No single piece of part can be used without the entire text. Any
use or restricted copying nullifies the entire report.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Certified Tree Risk Assessor (TRAQ)
Journeyman Tree Trimmer
ISA certified Arborist PN-6967A
May 9, 2023
Attn: Andrew Van Gordon, Associate Planner
City of Renton
1055 South Grady Way
Renton, WA 98057
RE: Tree Credit Requirements
Property Owner: Lin Shufen
Site Address: 16623 116th Pl SE, Renton, WA
Parcel# 1423700910
9,750 sq ft Lot Area
Dear Mr. Van Gordon,
ABC Herron Tree LLC is pleased to submit this report compiling the visual Tree Risk and
Evaluation Assessments performed on remaining trees located on Parcel 1423700910 at 16623
116th Pl SE, Renton as shown on the site map in my report.
Tree Inventory assessments were made in accordance with American National Standards
Institute (ANSI) A300 Part 5 standards. Visual Tree Assessments is an outlined process in
accordance with Tree Risk Assessment Qualification (TRAQ) program and is a recognized
standard of care by the International Society of Arboriculture (ISA) to evaluate tree health and
risk.
I have included a detailed report of my findings below, along with an inventory styled matrix
covering overall tree measurement and characteristics. Please feel free to contact me with any
questions you may have.
Yours,
Cody Herron
EXHIBIT 2
RECEIVED
PLANNING DIVISION
05/10/2023
AVanGordon
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 2 of 7
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Contents:
• Assignment
• Methods used to determine tree location and tree health
• GPS Coordinates
• Site Map
• Tree Assessment Matrix
• Discussion and conclusion
• References
• Waiver of Liability
Assignment
As part of a Routine Vegetation Maintenance Permit application I have been asked to inventory
remaining trees on this lot. This report is in addition to my report dated April 9, 2023 for this
property, and is valid for a one-year time frame.
Methods used to determine tree location and tree health:
Tree diameter was measured with a forester’s tape. Tree dripline and height and other
target distances were measured with a Nikon Pro laser range finder or tape shown in Figures
1 & 2. Trees are tagged with pink ribbon and Dymo Rhino aluminum labeler numerical
impression in Figure 3. All measurements and notes are recorded in digital format on site.
Forest Metrix software is used to record the data and pictures to help illustrate the findings,
see Site Map and Tree Assessment Matrix photos.
Figure 1 Figure 2 Figure 3
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 3 of 7
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
GPS coordinates (not official survey, visual aid only) see Table 1.
Tree # Species Latitude Longitude
20 Washington hawthorn 47.453494 -122.185711
21 Lodgepole pine 47.453475 -122.185869
22 Douglas fir 47.453421 -122.185853
23 Douglas fir 47.453383 -122.185936
24 Horsechestnut 47.453436 -122.185861
25 Norway maple 47.453371 -122.185860
26 Washington hawthorn 47.453452 -122.185869
27 Cherry 47.453331 -122.185609
28 Lodgepole pine 47.453353 -122.185746
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 4 of 7
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Site Map Figure 4 This is for visual aid only and does not represent a professional survey.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 5 of 7
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Discussion and Conclusion
I arrived on site at about noon on May 5, 2023 to inventory the remaining trees at this site. Trees are
indicated on the site with pink ribbon and numerical indications. There is no development occurring at
this property. This is an established residential lot.
Per RMC 4-4-130 “tree credit requirements shall apply at a minimum rate of thirty (30) credits per net
acre.” This lot of 9,750 square feet would be considered 0.22 square acres.
30 x 0.22 = 6.6, rounded up = 7 tree credit requirements
The remaining trees on this property of 6 caliper inches or greater are listed in Table 2 below. The
remaining trees would more than satisfy the seven tree credit requirement per the chart in Table 3.
Table 2
Tree Species DBH (in inches) Hazard Tree Tree Credits 20 Washington hawthorn 11 5
21 Lodgepole pine 9.5 4
22 Douglas fir 10.5 5
23 Douglas fir 10.5 5
24 Horsechestnut 8.3 4
25 Norway maple 21.6 8
26 Washington hawthorn 12 6
27 Cherry 16.8 7
28 Lodgepole pine 11.2 5
49
Table 3 from RMC 4-4-130.H.1.b
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 6 of 7
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
References:
ANSI Z133.1-2000 ANSI A300 (Pat 1) – 2008 American National Standards Institute. ANSI A300 part 5 & BMP Managing
Trees During Construction second edition 2016 Kelby Fite, Thomas Smiley.
American National standard for Tree Care Operations: Tree, Shrub and Other Woody Plant Maintenance: Standard Practices
(Pruning). New yok: Tree Care Industry Association, 2008. Coder, Dr. Kim D. Construction
Damage Assessments: Tree and Sites. University of Georgia. October 1996. Ashley, Burl S. 1980 Reference handbook
for foresters. USDA NA-FR-15. 35 pp. Dirr, Michael A.
Manual of Woody Landscape Plants, Their Identification, Ornamental Characteristics, Culture, Propagation, and Uses.
Champaign: Stipes Publishing Company, 1990. Dunster & Associates Environmental Consultants Ltd.
Assessing Trees in Urban Areas and the Urban- Rural Interface. US Release 1.0. Silverton: Pacific Northwest Chapter
ISA, 2006. Dunster, J. A. 2003.
Preliminary Species Profiles for Tree Failure Assessment. Bowen Island: Dunster & Associates Environmental Consultants
Ltd. Dunster, Julian A., E. Thomas Smiley, Nelda Matheny, and Sharon Lilly.
Tree Risk Assessment Manual. Champaign, Illinois: International Society of Arboriculture, 2013. Harris, Richard W, James
Clark, and Nelda Matheny. Arboriculture,
Integrated Management of Landscape Trees, Shrubs, and Vines. 4th ed. Upper Saddle River: Prentice Hall, 2004. Lilly,
Sharon.
Arborists’ Certification Study Guide. Champaign, IL: The International Society of Arboriculture, 2001. Matheny, Nelda
and Clark, James R.
A Photographic Guide to the Evaluation of Hazard Trees in Urban Areas. Second Edition. Champaign, IL: The International
Society of Arboriculture, 1994. Matheny, Nelda and Clark, James R.
Trees and Development: A Technical Guide to Preservation of Trees during Land Development. Champaign, IL: The
International Society of Arboriculture, 1998. Mattheck, Claus and Breloer, Helge. The Body Language of Trees: A Handbook
for Failure Analysis. London: HMSO, 1994 Schwarze, Francis W.M.R.
Diagnosis and Prognosis of the Development of Wood Decay in Urban Trees. Australia: ENSPEC Pty Ltd. 2008 Sinclair,
Wayne A., Lyon, Howard H., and Johnson, Warren T.
Diseases of Trees and Shrubs. Ithaca, New York: Cornell University Press, 1987.Prince,
Susan Duvall Visual Tree Assessment Feb 2018. Smiley, E. Thomas, Nelda Matheny, and Sharon Lilly, Tree Risk
Assessment Best Management Practices, ANSI A300 Part 9: Tree, Shrub, and Other
Woody Plant Management— Standard Practices (Tree Risk Assessment: Tree Structure Assessment). The
International Society of Arboriculture Press. Champaign. IL. 2011. Thies, Walter G. and Sturrock, Rona N.
Laminated root rot in Western North American. United States Department of Agriculture. Pacific Northwest. Resource
Bulletin PNW-GTR-349. April 1999. USDA Regions 6
Root Diseases in Oregon and Washington Conifers James S. Hadfield, Donald J. Goheen, Gregory M. Filip, Craig L. Schmitt,
Robert D. Harvey
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 7 of 7
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Waiver of Liability
There are many conditions affection a tree’s health and stability, which may be present and cannot be
ascertained, such as, root rot, previous or unexposed construction damage, internal cracks, stem rot and more
which may be hidden. Changes in circumstances and conditions can also cause a rapid deterioration of a trees’
health and stability. Adverse amount of time. While I have used every reasonable means to examine these trees,
this evaluation represents my opinion of the tree health at this point in time. These findings do not guarantee
future safety nor are they predictions of future events.
Any legal description provided to the consultant-appraiser is assumed to be correct. Any titles and ownerships
to any property are assumed to be good and marketable. No responsibility is assumed for matter legal in
character. Any and all property is appraised or evaluated as though free and clear, under responsible ownership
and competent management the tree evaluation consists of an external visual inspection of an individual tree’s
root flare, trunk, and canopy from the ground. Care has been taken to obtain all information from reliable
sources. All data has been verified insofar as possible; however, the consultant/appraiser can neither guarantee
nor be responsible for the accuracy of information provided by others.
Sketches, maps, diagrams, graphs and photographs in this report, being intended as visual aid, are not
necessarily to scale and should not be construed as engineering or architectural reports or survey.
As conditions change, it is the responsibility of the property owners to schedule additional site visits by the
necessary professionals to ensure that the long-term success of the project is insured. It is the responsibility of
the property owner to obtain all required permits form city, county state, for federal agencies. It is the
responsibility of the property owner to comply with all applicable laws, regulations, and permit conditions. If
there is a homeowner’s association, it is the responsibility of the property owner to comply with all Codes,
Covenants, and Restrictions (CC&R’s) that apply to tree pruning and tree removal.
This tree evaluation is to be used to inform and guide the client in the management of their trees. This in no way
implies that the evaluator is responsible for performing recommended actions or using other methods or tools
to further determine the extent of internal tree problems without written authorizations from the client.
Furthermore, the evaluator in no way holds that the opinions and recommendations are the only actions
required to ensure that the tree will not fail. A second opinion is recommended. The client shall hold the
evaluator harmless for any and all injuries of damages incurred if the evaluator’s recommendations are not
followed of for acts of nature beyond the evaluator’s reasonable expectations, such as severer winds, excessive
rains, heavy snow loads, etc.
The consultant/appraiser shall not be required to give testimony or to attend court by reason of the report
unless subsequent contractual arrangements are made including payment of an additional fee for such services
as described in the fee schedule and contract of engagement
This report and all attachments, enclosures, and references, are confidential and are for the use of the client
concerned. Loss or alteration of any part of this report invalidates the entire report. They may not be
reproduced, used in any way of dispersed in any form without the prior consent of the client concerned and ABC
Herron Tree LLC. This report constitutes a whole. No single piece of part can be used without the entire text. Any
use or restricted copying nullifies the entire report.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Certified Tree Risk Assessor (TRAQ)
Journeyman Tree Trimmer
ISA certified Arborist PN-6967A
May 24, 2023
Attn: Andrew Van Gordon, Associate Planner
City of Renton
1055 South Grady Way
Renton, WA 98057
RE: Mitigation Plan
Property Owner: Lin Shufen
Site Address: 16623 116th Pl SE, Renton, WA
Parcel# 1423700910
9,750 sq ft Lot Area
Dear Mr. Van Gordon,
Per our phone conversation today I am submitting this revised mitigation plan for planting trees on the
above-referenced property to satisfy the requirements of a Routine Vegetation Maintenance Permit
application.
The City of Renton will require 10 native conifer trees to be planted on this site, such as Douglas fir or
Sitka spruce. Please refer to Figure 1 for the approximate recommended locations to plant these trees.
Storm Lake Growers https://www.stormlakegrowers.com/ has a good selection of native plants at very
reasonable prices. October through April is the best time of year to plant trees in our area to ensure
their survival and viability. Thes tree should be 5-gallon pot container size (largest size). These trees can
be purchased around $14.75 wholesale price at this location. They should be around 4-6’ in height.
These ten trees should be tagged, ribboned or flagged so they can be located in the future and to ensure
identification by an inspector. The name of each species should be written in permanent marker on the
flags, tags or ribbons. The trees should be planted and maintained per the instructions in the United
States Department of Agriculture Tree Owner’s Manual (Adapted to the City of Renton) available on the
city’s website at Tree Owner's Manual for the Northeastern and Midwestern United States, NA-FR-
04=07 (civiclive.com)
Yours,
Cody Herron
EXHIBIT 3
RECEIVED
PLANNING DIVISION
05/25/2023
AVanGordon
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8
Page 2 of 2
16623 116th Pl SE, Renton
Cody Herron ABC Herron Tree LLC 425-293-2443
ISA Certified Arborist #PN-6967A Certified Tree Risk Assessor mountainredd@comcast.net
Replanting Map Figure 1 This is for visual aid only and does not represent a professional survey.
DocuSign Envelope ID: F7B04DE9-8BDD-4331-AE4D-0957411858B8