HomeMy WebLinkAboutArborist Report1 543Hyland Ave Arcadia, CA 91006
Prepared for:
Eric Tsang Architects
440 E Huntington Dr. Suite 356
Arcadia, CA 91006
June 24, 2021
Prepared by:
Javier Cabral Consulting Arborist
International Society of Arborists # WE- 8116A
1390 El Sereno Ave
Pasadena, California 91103
(626)818-8704
jctcabral ,sbcglobal.net
Javier Cabral
WE -8116A
ISA Certified Adbods* 31 Dec 2022
International Society of matin J
Javier Cabral / Consulting Arborist
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Table of contents
Summary
Background and assignment Summary
Google Earth Image & Site Conditions
List Inventory -----------------------------
Topo With Trees ---------------------------
Tree Pictures
Tree Removal Applications
Arborist Signature Page
Certificate Of Performance
pg. 3
pg. 3
pg. 4
pg. 5
pg. 6 & 7
pg. 8 thru 17
pg. 18 thru 24
pg. 25
pg. 26
Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 1,,-. )A 2021
Javier Cabral / Consulting Arborist Pg # 2
Summary
Mr. Tsang,
You have retained my consulting arborist services to provide a tree inventory and tree protection plan
for the property described as 1543 Hyland Ave Arcadia, CA 91006. You are in the planning and permitting
stages of demolishing the existing home and building a new single-family home.
Background and assignment
Mr. Tsang has requested that I provide the following arboricultural services.
1) Identify all trees on the property and label them on the architectural drawings as provided to the
arborist by Mr. Eric Tsang.
2) Evaluate the current health of the trees and make recommendations based on their health
3) Provide a protection plan for the (4) protected trees.
The following report is based on my site visit on June 24, 2021 and my analysis of the trees, site plan,
topographic survey, and the surrounding landscape. For the purpose of this report I will address these
trees as Trees # 1 thru 6.
Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 3
C
Site conditions
A one-story single-family home currently exists on this property located 1543 Hyland Ave Arcadia, CA 91106.
There is a total of (14) trees on site, of which (3) city owned Crape myrtle trees and (1) private Southern magnolia
tree are protected under the terms of the City of Arcadia Tree Protection Ordinance. No protected trees are
proposed to be removed for this construction project.
r
Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 4
List Inventory
Diameter at 4.5 Height
Tree # Common Name ! Botanical Name feet ldbhl
finfeet)
In inches
Spread
P
(infect)
Physiological
Y logical
condition
Protection
states
REMOVE
or
PRESERVE
Comments
Crape myrtle
Lagerstroemia indica
3+4+4+5+5 35
IS
good
YES CityI
Tree
PRESERVE
Crape myrtle
Lagerstroemia indica
4+4+4+5+7
40
IS
good
YES City2
Tree
PRESERVE
3 Crape myrtle
Lagerstroemia indica
2+3+5+5+5
35
15
good
YES City
Tree
PRESERVE
4 European white birch
Betula pendula
1+2+3+7+7+8
30
21
good
No
REMOVE
j
5 Southern magnolia
Magnolia grandmfiora
20
j 55
28
good
YES
PRESERVE
Moderate deadwood
in tips
6
Apple
Malus domestrca
1
8
5
good
REMOVE
7
Lemon
Citrus limon
2+2
8
5
good
FNo
o
REMOVE
8
Orange
Citrus sinensis 11+1+1+2+4+5+5'
18
13
good
No
REMOVE
9
Queen palm
Syagros romanzoffiana
no na
na I
na
No
na
na
10
Queen palm
Syagros romanzoffiana
na na
on
na
No
i
na
na
I I
Queen palm IS
agros romanzoffiana
na na
na
na
No
na
na
12
Queen palm
Syagros romanzoffiana
na na
na
na
No
na
na
I
13 :Queen
palm
Syagros romanzoffiana
on na
an
no
No
na
na
14
Mediterranean fan
palm
i
on na
na
na
No
na
na
Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 5
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Javier Cabral / Consulting Arborist pg # 7
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Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist pg # 7
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Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 16
Tree # 14 (facing west)
Eric Tsane 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 17
General Tree Protection Guidelines
1) Avoid damaging the roots, stem, and branches with mechanical and manual equipment. No roots shall be
severed within the Tree Protection Zone "TPZ" which is the same as the area within the Tree Protection
Fencing "TPF." Roots greater than two inches in diameter outside of the TPZ shall be cleanly severed with a
sharp tool such as a hand saw or manual pruners.
2) Avoid soil compaction by prohibiting the use of heavy equipment such as backhoes and bobcats under the
tree drip line. If access within the TPZ is required during the construction process, the route shall be covered
in a 6 -inch layer of mulch in the TPZ and the area shall be aerated and fertilized at the conclusion of
construction.
3) Do not store or park tools, equipment, vehicles, or chemicals under the tree drip line. No equipment or
debris of any kind shall be placed within the TPZ. No fuel, paint, solvent oil, thinner, asphalt, cement, grout,
or any other construction chemical shall be stored or allowed in any manner to enter within the TPZ.
4) Avoid washing of equipment and tools such as wheel barrels, shovels, and mechanical motors under the tree
drip line.
5) Prevent flooding and pooling of service water under the drip line. Grade changes that will flood the TPZ are
prohibited unless a drainage plan is implemented. No grade changes within the TPZ shall be allowed.
6) Avoid cutting tree roots whenever possible. This can sometimes be accomplished by bridging roots,
tunneling, or radial trenching. If roots must be cut use a sharp tool that will make a clean flush cut and not tear
the roots. If possible, all digging under the tree drip line should be done manually to avoid tearing out of
roots. Roots outside of the TPZ may be cleanly severed vertically with a sharp garden tool.
7) Do not raise or lower the grade within the tree protection zone of any protected trees unless approved by the
project arborist. Roots greater than 1 inch in diameter that are exposed or damaged shall be cut with a sharp
tool such as a hand saw, pruners, or loppers and covered with soil in conformance to industry standards. If
any work is required within the TPZ the Arborist shall be consulted previous to beginning. The Arborist shall
be contacted as soon as possible to arrange for a timely inspection and prevent delays.
Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 18
8) Place a protective barrier or temporary fencing as directed by the consulting arborist in the diagram below.
The protection fencing shall be in place before demolition begins and shall only be removed or reduced
when all heavy equipment such as back -hoes, bobcats, loaders, and other heavy equipment with tires
and tracks will not be required. Fencing can be adjusted or sections reduced or removed as the project
advances into the landscaping phases of the project. The consulting arborist shall be contacted if there are
doubts about the placement or removal of fencing.
9) Landscape preparation & excavation within the TPZ shall be limited to the use of hand tools and small
hand-held power tools and shall not be of a depth that could cause root damage. No attachments or wires
other than those of a protective or non -damaging method shall be attached to a protected tree.
10) Construction personnel should be briefed on the importance of the guidelines before construction begins
and reminded of it during tailgate meetings and as necessary. A printed copy should be posted where
employees can be reminded of it.
11) All protected trees shall be watered before, during, and after construction as needed to prevent drought
stress and tree death until sprinklers have been installed and are functional.
Eric Tsang 1543 Hyland Ave Arcadia CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 19
Site Plan With Protection Fencing (full scale
Eric Tsane 1543 Hvland Ave Arcadia CA 91006 June 24 202?
Javier Cabral / Consulting Arborist Pg. # 20
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Eric Tsane 1543 Hvland Ave Arcadia CA 91006 June 24 202?
Javier Cabral / Consulting Arborist Pg. # 20
site rian witu rrotection 1,'encing (cropped)
■ ■■■■ ■■■■■ ■ Blue dashed line = "Tree Protection Fencing" which shall
be the same as "Tree Protection Zone" unless otherwise stated by the
Consulting Arborist. "TPF" shall be in place before any work begins
including demolition and grading and only removed or adjusted when no
heavy equipment will be used within the "TPZ" and landscaping work is
to begin. The "TPF" illustrated is a minimum requirement and should be
increased when possible. No heavy equipment wheels or tracks shall be
allowed within the "TPZ" at any time and demolition within the "TPZ"
shall be done from outside the perimeter of the "TPZ". If there are any
doubts about the 'TPZ" the consulting arborist shall be contacted as
soon as possible to schedule a site inspection.
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proposed new driveway
HYLAND AVE
Eric Tsang 1543 Hyland Ave Arcadia CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 21
Atte Flan With Demolition Notes (cropped)
■I■�■�■�■�■�■�■�■ Red dashed line = Demolition of footings walls,
walkways, and grading along the perimeter and within the "TPF"
shall done with a combination of manual tools, hand and held power
tools. The goal is to remove the existing structures and footings very
carefully so that roots are not pulled out of the ground or damaged
and to excavate along the perimeter of the "TPF" while carefully
exposing major roots greater than 2 inches and severing them with a
sharp tool such as hand pruners, loppers, axes, and power
reciprocating saws. The depth of the excavations shall be minimal
and overexcavations are not to exceed 6 inches in width.
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HYLAND AVE
Enc Tsane 1543 Hyland Ave Arcadia CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg # 22
Trees # 1 thru 3 (Protection Details)
a) Structural excavation and over -excavation. No structural foundations for the home are proposed near
these trees. The impact is expected to be zero.
b) New driveway: The proposed new driveway is at a distance of approximately (10) ft. from Tree # 3. At
this distance impact is expected to be minimal.
c) New landscaping: No plants shall be planted within 3 ft. of the trunk of these trees and plants shall be
relocated if a root greater than 2 inches is encountered within 5 ft. of the tree trunks. Mulch shall be
kept a minimum of 6 inches from the tree trunks on all sides of these trees unless gravel is used.
d) New Sprinklers: No broadcast trenching for underground irrigation shall be done within 3 ft. of the
trunk of these trees.
e) Canopy pruning: No pruning will be required to complete the proposed construction project.
f) Root pruning: Total encroachment into the dripline is expected to be approximately 0%.
g) Protection Fencing: shall consist of 6 ft. high chain-link free-standing panels or attached to posts
hammered into the soil and shall be in place before any works begins including demolition. All
protection fencing may be removed or reduced when all heavy equipment and major construction is
completed, and landscaping is ready to be installed.
h) Maintenance: During the hot summer months these trees shall be watered as needed until the
sprinkler system is installed and working.
Encroachment impacts: This project is expected to have zero to minimal impact on the short or long-
term health of this tree, and it is expected to survive in good health if the protection recommendations
are followed and adhered to. Minimal impact means that no roots greater than two inches are
expected to be impacted and minimal to no interruption to water uptake or nutrient production,
transportation, and storage is expected. Tree stability, tree anchorage, trunk health, branches, and
leaves are not expected to be impacted. This tree is expected to survive in its current health.
Robert Tone 821 San Simeon Rd Arcadia CA 91007 T-- 25 2021
Javier Cabral / Consulting Arborist Pg. # 23
Tree # 4 Southern magnolia
a) Structural excavation and over -excavation: No structural foundations for the home are proposed near
this tree. The impact is expected to be zero.
b) New driveway: The proposed new driveway is located at a distance of approximately Q ft.) from the
edge of the tree trunk. This is the same distance of the existing concrete walkway south of the tree
trunk. Impact is expected to be minimal to moderate.
c) New Landscaping: No plants shall be planted within 5 ft. of the tree trunk and plants shall be relocated
if a root greater than 3 inches is encountered within 10 ft. of the tree trunk. Mulch shall be kept a
minimum of 6 inches from the tree trunk on all sides of the tree unless gravel is used.
d) New Sprinklers: No broadcast trenching for underground irrigation shall be done within 10 ft. of the
trunk of this tree.
e) Canopy pruning: No pruning will be required to complete the proposed construction project.
f) Root pruning: Total encroachment into the dripline is expected to be approximately 20%. Excavation
and expected root pruning for the driveway shall be done manually. Roots shall be cleanly severed with
a sharp tool such as pruners, hand saws, axes, and power saws.
g) Protection Fencing: shall consist of 6 ft. high chain-link free-standing panels or attached to posts
hammered into the soil and shall be in place before any works begins including demolition. All
protection fencing may be removed or reduced when all heavy equipment and major construction is
completed, and landscaping is ready to be installed.
h) Maintenance: During the hot summer months this tree shall be watered as needed until the sprinkler
system is installed and working.
Encroachment impacts: This project is expected to have moderate impact on the short or long-term
health of this tree, and it is expected to survive in good health if the protection recommendations are
followed and adhered to. Moderate impact means that no roots greater than three inches are
expected to be impacted and moderate interruption to water uptake or nutrient production
transportation and storage may be expected. Tree stability, anchorage, trunk, branch, and leaves are
not expected to be impacted. This tree is expected to survive in its current health.
Robert Tong 821 San Simeon Rd. Arcadia CA 91007 Jan , 25 2021
Javier Cabral / Consulting Arborist Pg. # 24
Thank you and feel free to contact me if you have any questions or concerns.
Yours truly,
Javier Cabral / Consulting arborist
1390 El Sereno Ave Pasadena, Ca 91103
International Society of Arboriculture # WE 8116A <l!!<G�✓ LL
Eric Tsans 1543 Hyland Ave Arcadia CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 25
Certificate of Performance & Limiting Conditions
I Javier Cabral certify the following:
• No warranty is made, expressed or implied, that problems or deficiencies of the trees or the property will not
occur in the future, from any cause. The Arborist shall not be responsible for damages or injuries caused by any
tree defects and assume no responsibility for the correction of defects or tree related problems.
• The owner and client of the trees may choose to accept or disregard the recommendations of the Arborist or
seek additional advice if the owner decides not to accept the Arborists findings or recommendations.
• The Arborist has no past, present or future interest in the removal or preservation of any tree. The opinions
contained in the Arborist report are independent and objective judgements of the Arborist.
• The findings, opinions, and recommendations of the Arborist are based on based on the physical inspection of
said property. The opinions are based on knowledge, experience, and education.
• The Arborist shall not be required to provide testimony, provide site monitoring, provide further documentation
for changes beyond the control of the Arborist, be deposed, or to attend any meeting without contractual
arrangements for additional fees to the Arborist.
• The Arborist assumes no responsibility for verification of ownership or location of property lines, or for any
recommendations based on inaccurate information.
• This Arborist report may not be reproduced without the expressed written permission or the Arborist and the
client to whom the report was provided to. Any changes or alteration of this report invalidates the entire report.
• Arborists are tree specialists who use their education, knowledge, training and experience to examine
trees, recommend measures to enhance the beauty and health of trees, make recommendations to prevent or
minimize damage to trees during and after construction projects, and attempt to reduce the risk of living near
trees. Clients may choose to accept or disregard the recommendations of the arborist, or to seek additional
advice.
• Arborists cannot detect every condition that could possibly lead to the structural failure of a tree. Trees
are living organisms that fail in ways we do not fully understand. Conditions are often hidden within trees
and below ground. Arborists cannot guarantee that a tree will be healthy or safe under all circumstances,
or for a specified period of time. Likewise, remedial treatments, like any medicine, cannot be guaranteed.
• Treatment, pruning and removal of trees may involve considerations beyond the scope of the arborist's
services such as property boundaries, property ownership, site lines, disputes between neighbors, and
other issues. Arborists cannot take such considerations into account unless complete and accurate
information is disclosed to the arborist. An arborist should then be expected to reasonably rely upon the
completeness and accuracy of the information provided.
• Trees can be managed, but they cannot be controlled. To live near trees is to accept some degree of risk.
The only way to eliminate all risk associated with trees is to eliminate all trees.
Eric Tsang 1543 Hyland Ave Arcadia, CA 91006 June 24 2021
Javier Cabral / Consulting Arborist Pg. # 26