App A - Tree Inventory Report
Appendix A:
Tree Survey Report
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UNITED STATES
Irvine
250 Commerce, Suite 250
Irvine, CA 92602
Pasadena
16 N. Marengo Avenue, Suite 303
Pasadena, CA 91101
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1350 Treat Boulevard, Suite 380
Walnut Creek, CA 94597
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Fresno, CA 93720
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San Bernardino, CA 92408
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Rocklin, CA 95765
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United Kingdom
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United Kingdom SL7 1EY
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New South Wales
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Unit 1, 1 Skyline Place
Frenchs Forest NSW 2086
Australia
AFRICA
Kenya
Tel: +254‐737‐433‐621
ADEC Kenya Services EPZ Ltd.
Nairobi, Kenya
ASIA
Philippines
Tel: +63 (2) 775.0632
Fax: +63 (2) 775.0632 local 8050
26th Floor, Philippine AXA Life Centre,
Sen. Gil Puyat Avenue,
Makati City, Metro Manila
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Letter Report
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July 31, 2018
Bob Ormond
City Terrace Associates, Ltd., L.P.
9990 Santa Monica Boulevard
Beverly Hills, CA 90212
Subject: Tree Inventory Memo Report for the Terrace Apartments Improvement Project
Located in Orange, Orange County, California
Dear Mr. Ormond:
FirstCarbon Solutions (FCS) was retained by the Terrace Apartments to conduct a tree inventory
for the proposed infrastructure improvement project at the property located at 200 City
Boulevard West in the City of Orange, California. The proposed improvements at the project
site (site) include construction of new and/or modification of existing buildings, structures,
parking lots and general property improvements at the residential property. The tree inventory
was conducted to document site conditions prior to planned development at the site.
METHODOLOGY
FCS Arborist and Biologist Damien Edwards conducted an inventory of the trees on the site
on November 16 and 19, 2017. Mr. Edwards recorded trees within 25 feet of the proposed
project impact area as these trees may be impacted by the project. The tree inventory was
conducted in accordance with the City of Orange Tree Protection Ordinance (City of Orange
Municipal Code 12.32).
Trees with a potential to be impacted by project activities were visually inspected in areas
within and adjacent to (25‐foot buffer) the project area. The location of each tree was
recorded in the field using a hand‐held global positioning system (GPS) device and/or
smartphone app. The number of trunks and diameter of each trunk were recorded for trees
with multiple trunks branching below breast height (4.5 feet). The inventory focused
primarily on determining the tree species, number, and size of trees with potential to be
impacted by the project. The arborist collected the following data for each tree with a
potential to be impacted by the project:
Species;
Size including diameter at breast height (DBH; approximately 4.5 feet above the
ground) and approximate height;
General location of the individual trees in relation to the project feature(s) (on or off
the property).
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Project impact areas were visually inspected for potential to impact trees. In hard‐to‐access areas (i.e.,
beyond property wall or fence), a visual inspection was conducted from a greater distance as access
allowed, and tree data was estimated. This method allowed for 100 percent cover of the project area
and 25‐foot buffer area.
The potential for and severity of impacts due to project activities (e.g., ground disturbance within the drip
line, trimming and/or removal of branches, relocation/removal of tree), general health (e.g., healthy, dying,
rot present) or apparent structural integrity problems (e.g., leaning, damaged, root rot, dead) were not
assessed as the specific construction details were not available at the time of the tree inventory.
All trees on the project site were mapped on an aerial photograph with the proposed project overlay
(Exhibit 1, Tree Survey Map).
RESULTS
Site Conditions
The site is located on highly developed land in a residential and commercial zoned area in the City of
Orange. The site is defined as urban/developed. The property appears to be completely developed and
previously disturbed, with no natural habitat or vegetation communities being observed on the
property. The property has ornamental landscaping that consists of planted trees (mostly non‐native)
and shrubs, grass and other plants. Ornamental species were observed at the site in the landscaped
areas along the road median, roadways, sidewalks, parking lots, and structures; near buildings; and
along property fence lines.
Tree Inventory
Only one (1) native tree species (Western Sycamore; Platanus racemosa) was observed at or near the
project site. A total of 187 trees (48 native, 139 non‐native) representing 14 species were identified as
having the potential to be impacted within or adjacent to the project site. Of the 187 trees,
approximately 130 trees were identified as being on the property while the remaining 57 trees were
assumed to be off the property given the location of the property fences and/or walls.
A list of the tree species identified on‐site, the total number of trees observed by species, and the
number of trees potentially impacted is provided in Table 1. A complete list and approximate GPS
locations of trees identified during the tree inventory is included in Appendix A of this memo report.
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Table 1: Trees Observed Within or Adjacent to the Project Site that May Be Impacted by the
Project
Species Scientific Name Species Common Name
Total Number of
Trees
Schinus terebinthifolius Brazilian pepper 1
Platanus racemosa California sycamore 48
Pinus canariensis Canary Island pine 5
Phoenix dactylifera Date palm 10
Eucalyptus spp. Eucalyptus 37
Ficus microcarpa Little‐leaf fig 1
Jacaranda mimosifolia Jacaranda 24
Magnolia granifolia southern magnolia 1
Washingtonia robusta Mexican fan palm 41
Citrus spp. Orange 2
Diospyros spp. Persimmon 2
Pittosporum undulatum Victorian box 6
Syagrus romanzoffiana Queen palm 8
Liquidambar styraciflua Sweet gum 1
Totals 187
Actual impacts to individual trees may be assessed in the future when final design plans are available
and/or during the construction phase of the project. The project will likely result in the removal and/or
trimming of trees, however no naturally‐occurring native tree species will be impacted since all trees
appear planted on‐site. Although individual trees were not assessed for health, they were observed to
be in good health as they are regularly maintained by landscape maintenance staff and/or contractors.
Recommendations
Many tree species are sensitive to environmental changes that alter the availability of water and
nutrients. Common construction‐related damage to trees include root injury from soil cuts, grade
changes, fills, compaction and trenching, excessive branch removal, and damage due to physical contact
between construction equipment and the tree.
In order to minimize the amount of mitigation that may be required as a result of damage by this project
to trees, it is recommended that an arborist oversee and/or be present during construction activities
that may negatively impact the trees. The role of the arborist would be to coordinate with the
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construction contractor and the on‐site personnel during any earth disturbance activities such as
clearing, grading, and other construction activities within or adjacent to areas where trees are present
including tree removal, relocation, and trimming activities. The arborist should attend all pre‐grading
and pre‐construction meetings and should be available to answer questions or concerns as they arise in
the field during construction.
Although no trees on‐site appeared to be protected by the City of Orange Tree Protection Ordinance
(City of Orange Municipal Code 12.32) it is recommended that the project proponent consult with the
City of Orange Community Services Department and/or Planning Department regarding final project
design prior to tree removal and/or trimming.
The following guidelines are recommended to ensure that construction activities do not adversely affect
trees intended for preservation.
Prior to clearing or construction, highly visible barriers (such as orange construction fencing)
should be installed around the protected zone of any tree or vegetation community to be
preserved. The protected zone should extend outside the dripline of the tree and/or a number
equal in feet to the tree’s diameter measured in inches (e.g., protected zone will be a 6‐foot radius
around a 6‐inch diameter tree), to be determined by an arborist. No grading or fill activity of any
type should be permitted within the protected zone.
If tree root(s) are cut during any construction activity, the roots should be cleanly cut with a saw
to prevent further root damage.
No heavy equipment, including motor vehicles, should be allowed to operate within the protected
zone of any tree not planned for removal or relocation. All construction equipment should be
operated in a manner as to prevent accidental damage to nearby trees.
No structure of any kind or incidental storage of equipment or supplies should be allowed within a
tree’s protected zone.
Silt fence barriers should be installed at the protected zone boundary to prevent accidental
deposition of fill material in areas where trees are immediately adjacent to planned grading
activities.
Any land use (e.g., roads, sidewalks) that may result in soil compaction within the protected zone
of any tree not planned for removal or relocation should be avoided.
Contour grading should be designed to retain the existing soil moisture regime of any preserved
tree. Excess surface runoff from adjacent development should be captured in a suitable drainage
system, and existing surface runoff characteristics should not be changed.
Landscaping, trenching, or irrigation systems should not be installed within the protected zone of
any native tree or native woodland.
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Please email me at dedwards@fcs‐intl.com if you have any questions or comments.
Sincerely,
Damien Edwards, MBA, Senior Biologist/Arborist
FirstCarbon Solutions
250 Commerce, Suite 250
Irvine, CA 92602
Enc: Attachment A: Project Maps
Exhibit 1: Tree Survey Map
Attachment B: GPS Coordinates and Data for Trees that may be Impacted at or near the Project
Site
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Attachment A:
Project Maps
Exhibit 1: Tree Survey Map
50230001 • 07/2018 | 1_tree_survey_map.mxd TERRACE APARTMENT SITE VISIT
Exhibit 1Tree Survey Map
Source: bing Aerial Imagery.
100 0 10050
Feet
Legend
Project Site
Impact Areas
25-Foot Impact Area Buffer
Trees
Brazilian Pepper
California Sycamore
Canary Island Pine
Date Palm
Eucalyptus
Eucalyptus Red Ironbark
Ficus
Jacaranda
Magnolia
Mexican Fan Palm
Orange
Persimmon
Pittosporum
Queen Palm
Sweet Gum
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Attachment B:
GPS Coordinates and Data for Trees that May Be Impacted at or Near
the Project Site
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