HomeMy WebLinkAbout08-10-2020 TC Agenda Packet - Special MeetingCity of San Luis Obispo, Agenda, Planning Co mmission
Agenda
TREE COMMITTEE
Special Meeting Agenda
Monday, August 10, 2020
Based on the threat of COVID-19 as reflected in the Proclamations of Emergency issued by both the Governor of
the State of California, the San Luis Obispo County Emergency Services Director and the Tree Committee of the
City of San Luis Obispo as well as the Governor’s Executive Order N-29-20 issued on March 17, 2020, relating to
the convening of public meetings in response to the COVID-19 pandemic, the City of San Luis Obispo will be
holding all public meetings via teleconference. There will be no physica l location for the Public to view the
meeting. Below are instructions on how to view the meeting remotely and how to leave public comment.
Additionally, members of the Tree Committee (TC) are allowed to attend the meeting via teleconference and to
participate in the meeting to the same extent as if they were present.
Using the most rapid means of communication available at this time, members of the public are encouraged
to participate in Council meetings in the following ways:
1. Remote Viewing - Members of the public who wish to watch the meeting can:
• View the Webinar:
➢ Registration URL: https://attendee.gotowebinar.com/register/243266256744381455
➢ Webinar ID: 517-373-171
➢ Telephone Attendee: (562) 247-8422; Audio Access Code: 736-158-760
2. Public Comment - The Tree Committee will still be accepting public comment for items within their
purview. Public comment can be submitted in the following ways:
• Mail or Email Public Comment
➢ Received by 3:00 PM on the day of meeting - Can be submitted via email to
advisorybodies@slocity.org or U.S. Mail to City Clerk at 990 Palm St. San Luis Obispo, CA 93401
• Emails sent after 3:00 PM– Can be submitted via email to advisorybodies@slocity.org and will be
archived/distributed to members of the Advisory Body the day after the meeting. Emails will not be
read aloud during the meeting. Verbal Public Comment
➢ Received by 3:00 PM on the day of the meeting - Call (805) 781-7164; state and spell your
name, the agenda item number you are calling about and leave your comment. The verbal
comments must be limited to 3 minutes. All voicemails will be forwarded to the Advisory
Body Members and saved as Agenda Correspondence. Voicemails will not be played during
the meeting.
➢ During the meeting – Members of the public who wish to provide public comment can join the
webinar (instructions above). Once you have joined the webinar, please put your name and Item #
in the questions box. Your mic will be unmuted once Public Comment is called for the Item and
you will have 3 minutes to speak.
All comments submitted will be placed into the administrative record of the meeting.
Tree Committee Special Agenda for August 10, 2020 Page 2
5:30 PM SPECIAL MEETING TELECONFERENCE
CALL TO ORDER Chair Alan Bate
ROLL CALL : Committee Members Scott Loosley, Elizabeth Lucas, Sean O’Brien,
Allen Root, Rodney Thurman, Vice Chair Jane Worthy, Chair Alan Bate
CONSIDERATION OF MINUTES
1. Minutes of the Tree Committee of May 20, 2020
PUBLIC COMMENT: At this time, people may address the Committee about items not on the
agenda. Persons wishing to speak should come forward and state their name and address.
Comments are limited to three minutes per person. Items raised at this time are generally referred
to staff and, if action by the Committee is necessary, may be scheduled for a future meeting.
BUSINESS ITEMS
2. New Business:
a. Review of four tree removals and replanting plan of 12 trees as part of a mixed-use project
located at 1144 Chorro Street consisting of approximately 30,000 square feet of
commercial/office space and 50 residential dwelling units, within the Downtown Historic
District.
b. Review of a proposed tree removal of 206 onsite trees and replanting plan of 314 trees as
part of a mixed-use project located at 650 Tank Farm Road that includes 249 residential
units and 17,500 square feet of commercial space.
3. Old Business: 150 Chorro St. (Black walnut tree)
COMMENT AND DISCUSSION
4. Arborists Report:
a. Urban Forest Services staffing update
b. San Luis Obispo Commemorative Grove update
c. Tree Removal application fee changed to $157.17 to reflect the Consumer Price Index
increase.
Tree Committee Special Agenda for August 10, 2020 Page 3
ADJOURNMENT
The next Special Meeting of the Tree Committee is scheduled for Tuesday, August 25, 2020
at 5:30 p.m. via teleconference.
The City of San Luis Obispo wishes to make all of its public meetings accessible to the public.
Upon request, this agenda will be made available in appropriate alternative formats to persons with
disabilities. Any person with a disability who requires a modification or accommodation in order
to participate in a meeting should direct such request to the City Corp Yard Office at (805) 781 -
7220 at least 48 hours before the meeting, if possible. Telecommunications Device for the Deaf
(805) 781-7410.
Meeting audio recordings can be found at the following web address:
http://opengov.slocity.org/weblink/1,1/fol/61087/Row1.aspx
Minutes - DRAFT
TREE COMMITTEE
Wednesday, May 20, 2020
Special Meeting of the Tree Committee
CALL TO ORDER
A Special Meeting of the Tree Committee was called to order on Wednesday, May 20, 2020 at
5:33 p.m. via teleconference.
ROLL CALL
Present: Committee Members Scott Loosley, Elizabeth Lucas, Sean O’Brien, Allen Root,
Rodney Thurman, Vice Chair Jane Worthy, and Chair Alan Bate
Absent: None
Staff: City Arborist Ron Combs, Urban Forester Anthony Whipple, and Deputy City Clerk
Kevin Christian
APPROVAL OF MINUTES
1. Consideration of Minutes for the Tree Committee meeting of April 27, 2020
ACTION: MOTION BY COMMITTEE MEMBER LOOSLEY, SECOND BY
COMMITTEE MEMBER THURMAN, CARRIED 7-0-0 to approve the Minutes of
April 27, 2020 with modifications:
- Item 2: Strike reference to Member Bate returning to the meeting
- Item 10: Member Thurman made the motion to nominate Member Bate to be Chair
PUBLIC COMMENT ON ITEMS NOT ON THE AGENDA
None.
DRAFT Minutes – Tree Committee Meeting of May 20, 2020 Page 2
TREE REMOVAL APPLICATIONS
2. 675 California Blvd.
Transportation Planner Jennifer Rice presented the report and responded to Committee
inquiries. City Arborist Combs responded to Committee questions concerning on-site
trees and pathway alignment.
Public Comment
None
ACTION: MOTION BY COMMITTEE MEMBER THURMAN, SECOND BY
COMMITTEE MEMBER LUCAS, CARRIED 7-0-0 to recommend acceptance of the
application with the following comments for consideration:
- Align the path to retain as many large trees as possible, removing only those that
absolutely must be removed.
- Replace trees at a 2:1 ratio with at least 36” box replacements
- Maintain irrigation on new trees for at least five years
- Provide contract arborist oversight daily during heavy construction/excavation
BUSINESS ITEM
3. New Business
City Arborist Combs updated the Committee on limited plans for the annual fall Arbor
Day celebration.
4. Old Business
None
5. Arborist Report
City Arborist Combs reviewed plans for public access to self-serve woodchip piles.
ADJOURNMENT
The meeting was adjourned at 6:35 p.m. The next Regular meeting of the Tree Committee is
scheduled for Monday, June 22, 2020 at 5:00 p.m., via teleconference.
APPROVED BY THE TREE COMMITTEE: XX/XX/2016
TREE COMMITTEE AGENDA REPORT
SUBJECT: Review of four tree removals and replanting plan of 12 trees as part of a mixed-use project
located at 1144 Chorro Street consisting of approximately 30,000 square feet of commercial/office space
and 50 residential dwelling units, within the Downtown Historic District.
PROJECT ADDRESS: 1144 Chorro Street,
868 and 870 Monterey, 876 and 890 Marsh,
895, 898, 973 Higuera Streets
BY: Kyle Bell, Associate Planner
Phone: (805) 781-7524
E-mail: kbell@slocity.org
FILE NUMBER: ARCH-1687-2018,
PDEV-0509-2019, & EID-0475-2019 FROM: Ron Combs, City Arborist
RECOMMENDATION: Recommend the City Council find the proposed tree removal and replanting
plan as part of the mixed-use development project at 1144 Chorro Street consistent with the Tree
Regulations.
SITE DATA
SUMMARY
The proposed project consists of the demolition of an existing one-story commercial building, and
construction of a new 65,752-square-foot six-story mixed-use building that includes approximately 30,000
square feet of commercial/office space and 50 residential dwelling units on a 16,710-square foot lot. The
first floor of the project is comprised of three retail suites with accommodations for restaurant use, a
residential lobby, commercial office lobby, and a small parking facility with accessible parking, car share
spaces, and delivery/drop off spaces. The second and third floor have been designated for commercial office
uses. The fourth, fifth, and sixth floors are reserved for the residential apartments. Twenty-five percent of
Applicant Mark Rawson
Representative Jessie Skidmore, 10 Over Studios
Zoning C-D-H (Downtown Commercial
within the Downtown Historic
District)
General Plan General Retail
Site Area ~0.38 acres
Environmental
Status
An Initial Study of environmental
impact has been prepared with a
recommendation for a Mitigated
Negative Declaration (IS/MND)
Meeting Date: August 10, 2020
ARCH-1687-2018, PDEV-0509-2019, & EID-0475-2019
1144 Chorro Street, 868 and 870 Monterey, 876 and 890 Marsh, 895, 898, 973 Higuera Streets
Page 2
the proposed residential units (13 units) would be reserved for tenants with moderate incomes1. The project
also includes an application for a Planned Development (PD) Overlay zone including seven parcels with a
total area of 2.16 acres located in the Downtown Historic District.
The project site does not contain any heritage trees or significant native vegetation. The project includes the
removal of two existing carrotwood trees, one existing Brachychiton tree, and one palm tree on-site. The
two larger street trees currently located on the Chorro Street frontage of the property would remain in place
and the project would add four new street trees (Jacaranda trees) to be located along the Chorro Street and
Marsh Street property frontages (Attachment 1, Landscape Plans). The Tree Committee and City Arborist
have previously approved two tree removal permits for the two carrotwood trees, a bottle tree, and the
Brachychiton tree on the subject property. The trees were never removed, and the permits have since
expired.
1.0 COMMITTEE PURVIEW
The Tree Committee’s role is to review the project and provide a recommendation to the City Council
regarding consistency with the policies and standards set forth in San Luis Obispo Municipal Code
(SLOMC) §12.24 (Tree Regulations).
2.0 PREVIOUS REVIEWS
On January 27, 2014, the Tree Committee approved a tree removal permit to remove two street trees
(Carrotwood and Bottle tree), with a one to one replacement (of either Catalina Ironwood, or Bronze Loquat,
or Firewheel Tree) associated with crowding of existing trees and damage to the sidewalk (Attachment 2,
Tree Removal Permit 1.27.14). The trees were never removed.
On October 27, 2016, the City Arborist approved a tree removal permit to remove three street trees (two
Carrotwood and one Bottle Tree), with one replacement tree along Chorro Street frontage, and one
replacement tree along the Marsh Street frontage, associated with the frontage improvements for an
approved development known as Discovery Bowling at the subject property (Attachment 3, Tree Removal
Application 11.). The trees were never removed.
3.0 PROJECT DESCRIPTION
The project includes the frontage improvements along Chorro and Marsh street along the property at 1144
Chorro, the project includes the proposed removal of the same Carrotwood and Brachychiton trees as the
permit from 2014, and includes the removal of an additional Carrotwood along Marsh Street, as well as the
removal of a Palm tree located on the property along Chorro Street. The additional Carrotwood tree along
Marsh Street is proposed for removal to accommodate a new driveway to provide access to the property,
the location of the driveway is constrained due to proximity to the neighboring driveway for the Wineman
Hotel, and proximity of the intersection.
1 Housing Element. Goal 2 Affordability. 2.1 Income Levels For Affordable Housing households. For purposes of this
Housing Element, affordable housing is that which is obtainable by a household with a particular income level, as further
described in the City’s Affordable Housing Standards. Housing affordable to Extrem ely Low, Very Low, Low, and
Moderate-income persons or households shall be considered “affordable housing.” Moderate income is defined as 81%
to 120% of County median household income.
ARCH-1687-2018, PDEV-0509-2019, & EID-0475-2019
1144 Chorro Street, 868 and 870 Monterey, 876 and 890 Marsh, 895, 898, 973 Higuera Streets
Page 3
The project includes four new 24” box street trees (Jacaranda trees), two along Marsh Street, and two along
Chorro Street. The project includes the additional planting of eight 15-gallon trees along the third-floor
terrace (Dwarf Southern Magnolia), four along Marsh Street and four along Chorro Street, see Figure 1.
4.0 TREE REGULATIONS
The City’s Tree Ordinance (Municipal Code Chapter 12.24) was adopted in 2010 and recently updated in
2019 with the purpose of establishing a comprehensive program for installing, maintaining, and preserving
trees within the City. This ordinance establishes policies, regulations, and specifications necessary to govern
installation, maintenance, removal, and preservation of trees to beautify the city; to purify the air; to provide
shade and wind protection; to add environmental and economic value; and to preserve trees with historic or
unusual value.
4.2 Tree Removal (§ 12.24.090)
Process for Tree Removals Related to Ministerial or Discretionary Property Development Permits. SLOMC
§12.24.090 subsection F.4 requires review by the Tree Committee for tree removal requests related to
discretionary permit applications for Major Development Review2, to make a recommendation based on
criteria set forth in subsections G and J. The criteria are provided below with a description of how the
proposed project responds.
• Size of Tree. The size of the trees proposed for removal range from 8 inches diameter at breast
height (DHB) to 30 inches DBH.
• Location of Tree on Private Property. Three trees proposed for removal are located within the public
2 Zoning Regulations § 17.106.030. Levels of Development Review. (D) Major. Major Development Review is a
discretionary Planning Commission review process that includes public notice with a public hearing conducted as is
required for all Planning Commission actions. (1) Multi-unit residential developments with more than 10 units... (3)
Nonresidential development with more than 10,000 gross square feet of new construction…
Figure 1: Ground floor tree removals and replanting plan (left), second floor additional planting (right).
ARCH-1687-2018, PDEV-0509-2019, & EID-0475-2019
1144 Chorro Street, 868 and 870 Monterey, 876 and 890 Marsh, 895, 898, 973 Higuera Streets
Page 4
right-of-way, two along the Chorro Street frontage, and one along the Marsh Street frontage. Only
one tree is proposed for removal on private property (existing Palm tree along Chorro Street). All
trees proposed for removal are visible from the public right-of-way.
• Species of Tree. The species of trees proposed for removal include two Carrotwood trees, one
Brachychiton (Bottle Tree), and one Palm tree. The trees proposed for removal are not native tree
species to California.
• Forestry Best Practice. The original tree removal permit from 2014 was approved due to the
overcrowding of trees along Chorro Street, spacing the trees further apart would result in improved
urban forestry practices. The project would also increase total quantity of trees throughout the
project site.
• Public Right-of-Way Obstruction or Displacement. Three street trees are proposed for removal, the
original tree removal permits from 2014 and 2016 indicated that the tree removals were approved
due to damaged sidewalks, and accommodations for improved pedestrian circulation associated
with redevelopment of the subject property.
• Compliance Regarding Compensatory Plantings. The applicant is proposing to provide
compensatory plantings in excess of the required minimum compensatory plantings. See
compensatory planting discussion below.
• Heritage Trees. None of the trees proposed for removal have been designated Heritage trees.
Compensatory Tree Planting. Per the Tree Regulations, tree removal shall be compensated by planting a
minimum of one new tree for each tree removed onsite (1:1 replanting ratio). There are four trees proposed
for removal along the street frontage and on-site. The applicant is proposing to replant four 24-inch box
trees along the public right-of-way, and eight 15-gallon trees on-site; this is a replanting ratio of 1:4.
5.0 ATTACHMENTS
1. Landscaping Plan
2. Tree Removal Permit 1.27.14
3. Tree Removal Permit 11.2.16
539 Marsh Street
San Luis Obispo, CA
805.541.1010
info@tenoverstudio.com
MARSH & CHORRO MIXED-USE at DOWNTOWN CENTRE
SAN LUIS OBISPO, CA
DATE: 7/27/2020 L1.0
planting & TREE
REMOVAL PLAN
SCALE: 1” = 20’-0”NUPUPP.L 119.30'204.5 FF
204.38 FF
204.4 FF
204.37 FF 204.15 FF
204.06 FF
204.28 FF
204.77 FF
204.61 FF
CALIFORNIA
PIZZA KITCHEN
CHORRO STREET MARSH STREET(E) 10'-0" ALLEY
(N) MIXED USE BUILDING
BRANZINO
1 122
2333
3
4
54 6
5
TREES QTY BOTANICAL NAME / COMMON NAME CONT REMARKS
4 Jacaranda mimosifolia / Single Trunk 24" box Size: 40-50` tall and 20-30` wide
WUCOLS PF = .4-.6
SHRUBS QTY BOTANICAL NAME / COMMON NAME SIZE REMARKS
12 Sansevieria trifasciata / Mother-in-law`s Tongue 5 gal Size: 2`-4` tall and 1-2` wide
WUCOLS PF = .1-.3
13 Senecio mandraliscae `Blue Chalk Sticks` / Senecio 1 gal Size: 1`-3` tall x 2`-3` wide
WUCOLS PF = .1 - .3
PLANT SCHEDULE
1 SITE PLAN
SCALE:1" = 30'
JACARANDA MOTHER IN LAWS TONQUE SENECIO
KEYNOTES
1. (E) STREET TREE TO REMAIN
2. (N) DECORATIVE PATIO FENCE
3. (N) RAISED PLANTERS
4. (E) PALM TO BE REMOVED
5. (E) CARROTWOOD TREE TO BE
REMOVED
6. (E) BRACHYCHITON TO BE REMOVED
539 Marsh Street
San Luis Obispo, CA
805.541.1010
info@tenoverstudio.com
MARSH & CHORRO MIXED-USE at DOWNTOWN CENTRE
SAN LUIS OBISPO, CA
DATE: 7/27/2020 L1.1
ROOFTOP planting
plan
SCALE: 1” = 20’-0”NSTUDIO
601
357 SF
STUDIO
603
318 SF
STUDIO
604
318 SF
STUDIO
607
329 SF
STUDIO
608
337 SF
1-BD
611
451 SF
STUDIO
613
408 SF
STUDIO
614
450 SF
STUDIO
615
501 SF
STUDIO
616
484 SF
1-BD
617
576 SF
2-BD
605
660 SF
STUDIO
602
350 SF
STUDIO
606
329 SF
1-BD
609
362 SF
1-BD
610
479 SF
1-BD
612
451 SFCOMMON
KITCHEN
618
363 SF
(N) MIXED USE BUILDING
1 1 1 1
1
1
1
2
22
22
2
TREES QTY BOTANICAL NAME / COMMON NAME CONT REMARKS
8 Magnolia grandiflora `Little Gem` / Dwarf Southern Magnolia 15 gal Size: 20`-25` tall and 10`-15` wide
WUCOLS PF = .4 - .6
SHRUBS QTY BOTANICAL NAME / COMMON NAME SIZE REMARKS
4 Cotinus coggygria `Royal Purple` / Royal Purple Smoke Tree 5 gal Size: 16` tall and 15` wide
. WUCOLS PF = .4 - .6
43 Nepeta x faassenii `Walkers Low` / Walkers Low Catmint 1 gal Size: 2`- 2 1/2` tall and 2`-3` wide
WUCOLS PF: .1-.3
9 Olea europaea `Little Ollie` TM / Little Ollie Olive 5 gal Size: 4`-6` tall and wide
WUCOLS PF = >.1
PLANT SCHEDULE
20 Senecio mandraliscae `Blue Chalk Sticks` / Senecio 1 gal Size: 1`-3` tall x 2`-3` wide
WUCOLS PF = .1 - .3
1 SITE PLAN
SCALE:1" = 30'MARSH & CHORRO MIXED-USEDWARF SOUTHERN
MAGNOLIA
PURPLE ROYAL
SMOKE TREE
WALKERS LOW CATMINT LITTLE OLLIE OLIVE
MOTHER IN LAWS TONQUE SENECIO
KEYNOTES
1. (N) RAISED PLANTERS
2. (N) ROOFTOP PATIO
TREE COMMITTEE AGENDA REPORT
SUBJECT: Review of a proposed tree removal of 206 onsite trees and replanting plan of 314 trees as part
of a mixed-use project located at 650 Tank Farm Road that includes 249 residential units and 17,500 square
feet of commercial space, with a finding of consistency with a previously approved Mitigated Negative
Declaration of Environmental Review.
PROJECT ADDRESS: 650 Tank Farm Road BY: Brandi Cummings, Contract Planner
(Rachel Cohen, Associate Planner)
Phone: (805) 781-7574
e-mail: rcohen@slocity.org
FILE NUMBER: ARCH-0755-2019 FROM: Ron Combs, City Arborist
RECOMMENDATION: Recommend the City Planning Commission find the proposed tree removal and
replanting plan as part of the mixed-use development project at 650 Tank Farm Road consistent with the
Tree Regulations.
SITE DATA
Applicant Agera Grove Investments, LLC
Representative Pam Ricci, RRM Design Group
Zoning Service Commercial, Conservation Open
Space (C-S-SP, C/OS-SP)
General Plan Services and Manufacturing, Open Space
Site Area 12.75 acres
Environmental
Status
Consistent with a previously approved
Mitigated Negative Declaration (November
2018)
1.0 COMMITTEE PURVIEW
The Tree Committee’s role is to review the project and provide a recommendation to the Planning
Commission regarding consistency with the policies and standards set forth in San Luis Obispo Municipal
Code (SLOMC) §12.24 (Tree Regulations).
2.0 PROJECT DESCRIPTION
The mixed-use project includes 17,500 square feet of commercial space and 249 residential units. Generally,
the project is comprised of 20 structures, several parking areas, recreational areas, pedestrian and vehicle
access and large landscaping areas (see Attachment 1, Project site plan). The project includes the widening
Meeting Date: August 10, 2020
ARCH-0755-2019 (650 Tank Farm)
Page 2
of Tank Farm Road along the frontage of the site for sidewalk, roadway improvements, and street trees (no
street trees currently exist along the frontage. Main access to the site is proposed with a new bridge over
Orcutt Creek from the signalized intersection at Tank Farm and MindBody. The project proposes to remove
206 trees (see Attachment 2, Arborist Report) and replant 314 new trees (Attachment 3, Landscape Plan).
The Arborist Report notes that the City’s standards generally categorize any woody plant with a stem
diameter over 3” and height greater than 10’ as a tree. Due to the age of the landscape and the lack of
maintenance, there are several species of large screen shrubs that have been classified as trees and are
included as part of the total.
3.0 TREE REGULATIONS
SLOMC Chapter 12.24: Tree Regulations establishes policies, regulations, and specifications necessary to
govern installation, maintenance, removal, and preservation of trees to beautify the city; to purify the air; to
provide shade and wind protection; to add environmental and economic value; and to preserve trees with
historic or unusual value.
3.2 Tree Removal (§12.24.090)
Criteria for Construction Related Tree Removal Recommendations. SLOMC Section 12.24.090 subsection
G provides criteria for construction-related tree removal recommendations. The criteria are provided below
with a description of how the proposed project meets the criteria.
• Size of Tree. The size of the trees proposed for removal range from 3.5 inches diameter at breast
height (DHB) to 96 inches DBH. Most of the trees are 12 to 24 inches DBH.
• Location of Tree on Private Property. All trees proposed for removal are located on private property.
The trees are located throughout the property; some trees are visible from the public right-of-way,
including most prominently the Mexican fan palm (Washingtonia robusta) and various eucalyptus
(Eucalyptus spp.) (see Attachment 2, Arborist Report).
• Species of Tree. The species of trees proposed for removal vary and primarily include Mexican fan
palm, Hollywood juniper (Juniperus chinensis ‘Kaizuka’), magenta cherry (Syzygium paniculatum),
glossy privet (Ligustrum lucidum), eucalyptus, shiny xylosma (Xylosma congestum), and hollyleaf
cherry (Prunus ilicifolia). The removal includes three native species: one coast live oak [Quercus
agrifolia], one California sycamore [Platanus racemosa], and two Southern California black walnut
[Juglans californica]). For a complete list of tree species, please see Attachment 2.
• Forestry Best Practice. Most of the trees onsite are in moderate to poor health. The trees identified
as being in good health include several Mexican fan palms, a Victorian box (Pittosporum
undulatum), and a California black walnut. The project would increase total quantity of trees, as
well as increase the number of native trees planted, on the project site (see Attachment 3, Landscape
Plan).
• Public Right-of-Way Obstruction or Displacement. No street trees are proposed for removal.
• Compliance Regarding Compensatory Plantings. The applicant is proposing to provide
ARCH-0755-2019 (650 Tank Farm)
Page 3
compensatory plantings in excess of the required minimum compensatory plantings. See
compensatory planting discussion below.
• Heritage Trees. None of the trees proposed for removal have been designated Heritage trees.
Compensatory Tree Planting. Per the Tree Regulations, tree removal shall be compensated by planting a
minimum of one new tree for each tree removed onsite (1:1 replanting ratio). There are 206 trees proposed
for removal on-site and the applicant is proposing to replant 314 trees onsite; this is a replanting ratio of
1.5:1. Of the 314 replanted trees, 78 would be native species. Coast live oak and London plane tree would
be planted along the property frontage on Tank Farm Road. The applicant is proposing to plant 15-gallon
sized trees.
Table Error! Use the Home tab to apply 0 to the text that you want to appear here.: List of trees and
quantity to be planted on-site
Common Name Latin Name Quantity
Peppermint tree Agonis flexuosa 46
Chinese flame tree Koelreuteria bipinnata 35
Brisbane box Lophostemon confertus 41
European olive Olea europaea 7
Chinese pistache Pistacia chinensis 53
California sycamore Platanus racemosa 9
London plane tree Platanus x acerifolia ‘Columbia’ 28
Coast live oak Quercus agrifolia 69
Pin oak Quercus palustris 14
California fan palm Washingtonia filifera 12
6.0 ATTACHMENTS
1. Project Site Plan
2. Arborist Report, October 8, 2019
3. Landscape Plan
TYPE1TYPE1TYPE2TYPE1TYPE1TYPE1TYPE1TYPE2TYPE1TYPE1TYPE1TYPE1TYPE1TYPE1650 TANK FARM MIXED-USEA30439-02-LP1811 JUNE 20201” = 40’=0” (24X36 SHEET)02040 80PROPOSED SITE PLAN FCBAFAFFAFFCDGABCDEFHBBBBSITE PLAN1" = 40’ (24 X 36 SHEET)1BUILDING A - TOWNHOMESLEGENDBUILDING B - 1 BEDROOM AND STUDIO FLATSBUILDING C - 2 BEDROOM FLATSBUILDING D - AFFORDABLE HOUSINGBUILDING E - INCLUSIONARY & AFFORDABLE HOUSINGBUILDING F - TOWNHOMESGH91011BUILDING G - CLUBHOUSEBUILDING H - COMMERCIAL BUILDINGCOMMERCIAL TRASH ENCLOSURERESIDENTIAL TRASH ENCLOSUREPROJECT MONUMENT SIGN1011TANK FA
R
M
R
O
A
D10109101010101010732 12CLUBHOUSE POOL121314151617PROPERTY LINEPROPOSED RIGHT OF WAYPROPOSED 7’ PUBLIC SIDEWALKTYPICAL DOUBLE LOADED PARKING: 60.1’ BAY WIDTH WITH 8.6’ WIDE STALLS15” FRONT SETBACK18SECONDARY ACCESS “RIGHT IN, RIGHTOUT”19FUTURE EVACUATION/BIKE/PEDESTRIANCONNECTION TO ADJACENT PROJECTORCUTT CREEK1313131315181616ACACIACREEKACACIACREEK14171420SPECIAL PAVER TREATMENT201921TYPICAL SINGLE LOADED PARKING: 43.3’BAY WIDTH WITH 8.6’ WIDE STALLS212121222212’ PUBLIC UTILITY EASMENT23243223SHORT TERM COMMERCIAL BIKE PARKING.REFER TO SHEET A2124COMMERCIAL ENTRY PLAZA WITH DININGTABLES FOR EMPLOYEE AND VISITOR USE2325CONCRETE, PEDESTRIAN PATH WITH ACCESS TO DAMON-GARCIA SPORTS FIELDS26EDGE OF RIPARIAN SETBACK. REFERTO CIVIL27TOP OF BANK. REFER TO CIVIL28POTENTIAL CARPORT25262727282828282828282828282827292929TOP OF BANK. REFER TO CIVIL3035’ CREEK SETBACK. REFER TO CIVILE292930303120’ CREEK SETBACK. REFER TO CIVIL31313235’’ RIPARIAN SETBACK. REFER TO CIVIL23SHORT TERM BIKE PARKING.REFER TO SHEET A21 FOR ADDITIONAL INFORMATIONSSRRATYPE1ATTACHMENT 1
Arborist Report
Project: 650 Tank Farm
Project # 0439-02-LP18
Location: 650 Tank Farm Road,
San Luis Obispo, CA
Date: October 8, 2019
Prepared For: Matthew Wade
LandStone Realty Advisors, Inc.
4927 Calloway Drive, Suite 102
Bakersfield, CA 93312
Prepared By: Jake Minnick
ISA Certified Arborist #WE-11830A
RRM Design Group
3765 S Higuera St. Suite 102
San Luis Obispo, CA 93401
Revised: July 14, 2020
Prepared By: Jake Minnick, PLA
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 2
Table of Contents
Page
Introduction and Overview 2
Methodology 2
Summary of Findings 2
Municipal Code Governing Trees 3
Recommendations for Trees During Construction 3
Maintenance Recommendations for Trees to Remain 4
Terms and Conditions 6
Exhibit A – Tree Location Map 7
Table 1 - Tree Quantity Summary 8
Table 2 - Tree Evaluation Summary 9
Appendix A - ANSI A300 - Part 1 - Pruning Standards 17 18
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October 8, 2019 3
Introduction and Overview
RRM Design Group was contracted by LandStone Realty Advisors, Inc. to complete a tree
inventory and arborist report. On October 2, 2019 and October 8, 2019 RRM Design Group
conducted a tree inventory of 206 trees located within, and immediately adjacent to, the lot of land
located at 650 Tank Farm Road in San Luis Obispo, CA (APN 053-421-005). The land is bounded
by Damon Garcia Sports Fields to the north, Tank Farm Road to the south, a large stand of
naturalized eucalyptus to the west, and mostly undeveloped land to the east. Most of the lot is
currently being used as a mobile home park with a portion to the north fenced for RV storage.
The mobile home park was observed as partially occupied and looked to be a 1970’s installation
of approximately 35 units. The RV storage portion of the property was mostly empty with
approximately 5 storage spaces still occupied.
The project biologist has identified riparian areas along a portion of the eastern boundary and
most of the western boundary of the property. These areas are outlined in page 10, Figure 3 of
Rincon Consultants’ Biological Resource Assessment, prepared for the City of San Luis Obispo,
dated February 2018. These areas have been identified in the field by the Natural Resources
Manager for the City of San Luis Obispo. All trees with stems located entirely within the riparian
boundary are excluded from the scope of this report.
All trees through number 161 are tagged with the corresponding number shown on the attached
tree map. Trees 161-206 were inaccessible due to impassible fencing and/or hazardous plants
and were not tagged or physically measured. The approximate locations and DBH’s of these trees
are noted in this report.
Our scope of services includes tagging, measuring DBH, and cataloging photographs of the
condition of all trees on site. Health conditions are based on current site conditions. Site
development/design may affect this health assessment.
Methodology
Our tree survey work is a deliberate and systematic methodology for cataloging trees on site:
1. Identify each tree species.
2. Tag each tree (as feasible) with a metal tag and note its location on a map.
3. Measure each trunk circumference at 54" above grade per ISA standards.
4. Evaluate the health and structure of each tree using the following designations:
Good - Trees with good health and structural stability that have the potential for longevity at the site.
Moderate - Trees in somewhat declining health and/or exhibits structural defects that cannot be abated
with treatment. Trees will require more intense management and will have a shorter lifespan than those
in the 'Good' category.
Poor - Trees in poor health or with significant structural defects that cannot be mitigated. Tree is
expected to decline, regardless of treatment.
Summary of Findings
It’s important to note that the City of San Luis Obispo generally categorizes any woody plant with
a stem diameter over 3” and height greater than 10’ as a tree. Due to the age of the landscape
and the lack of maintenance, there are several species of large screen shrubs that have been
classified as trees under this definition. They have all been assessed as trees and will be referred
to as trees for the purposes of this report.
Most of the specimens assessed are mature privet trees. Generally, the health of the trees
inspected is moderate, although many are exhibiting dieback in the crown, epicormic and sucker
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October 8, 2019 4
growth, which can likely be attributed to extended periods of drought stress. No active irrigation
sources or distribution systems were found on the property.
Most of the specimens evaluated will be affected by the proposed development project primarily
due to proposed alterations to existing finished grade elevations throughout much of the property.
There are no viable candidates for relocation. The 12.75 acre lot is moderately planted with a
relatively small ratio of canopy coverage. This is mostly due to the growth habit of most of the
trees assessed. Many of the trees are large screen hedges, small trees, and palm trees that
produce a small amount of canopy coverage relative to their height. Because of this, the total
canopy coverage for the lot is poor, and much of the land is exposed.
The range in size observed is 3.5 inches to 96 inches DBH. There are many multi-stemmed
specimens present. Most are privets and juniper. The DBH of multi-stemmed trees is reported on
Table 2 as a sum of all stems at 54" above finished grade.
Several regionally native tree species were observed in small quantities. There is one (1) western
sycamore located near Tank Farm Road, two (2) California black walnuts located along the
eastern property boundary, and two (2) coast live oaks located along the northern and
northeastern property boundaries. The western sycamore is a cultivated specimen planting that
is in decline – likely due to drought stress. The walnuts and oaks appear to be naturalized
specimens. None of the native specimens observed are of a notable size.
See Table 1 for Tree Quantity Summary by species and size.
See Table 2 for Tree Evaluation Summary for types, sizes, and health status of trees.
Municipal Code Governing Trees
Refer to the 2010 Series of Ordinance No. 1544 of the City of San Luis Obispo’s Municipal Code.
Recommendations for Trees During Construction
Site preparation: All existing trees to remain shall be fenced off 10’ beyond the drip line extents
(foliar spread) of the tree. Alternatively, where this is not feasible, fence to the drip line of the tree.
Where fencing is not possible, the trunk shall be protected straw waddle and orange snow fencing.
The fence should be a minimum of six feet high, made of pig wire with steel stakes or any material
superior in quality, such as cyclone fencing. A tree protection zone sign shall be affixed to fencing
at appropriate intervals as determined by the arborist on site. If the fence is within the drip line of
the trees, the foliar fringe shall be raised to offset the chance of limb breakage from construction
equipment encroaching within the drip line. All contractors, subcontractors and other personnel
shall be warned that encroachment within the fenced area is forbidden without the consent of the
certified arborist on the job. This includes, but is not limited to, storage of lumber and other
materials, disposal of paints, solvents or other noxious materials, parked cars, grading equipment
or other heavy equipment. Penalties, based on the cost of remedial repairs and the evaluation
guide published by the international society of arboriculture, shall be assessed for damages to
the trees. See tree preservation detail for additional information, including tree protection zone
sign.
Grading/excavating: All grading plans that specify grading within the drip line of any tree, or
within the distance from the trunk as outlined in the site preparation section above when said
distance is outside the drip line, shall first be reviewed by a certified arborist. Provisions for
aeration, drainage, pruning, tunneling beneath roots, root pruning or other necessary actions to
protect the trees shall be outlined by an arborist. If trenching is necessary within the area as
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October 8, 2019 5
described above, said trenching shall be undertaken by hand labor and dug directly beneath the
trunk of the tree. All roots 2 inches or larger shall be tunneled under and other roots shall be cut
smoothly to the trunk side of the trench. The trunk side should be draped immediately with two
layers of untreated burlap to a depth of 3 feet from the surface. The burlap shall be soaked nightly
and left in place until the trench is back filled to the original level. An arborist shall examine the
trench prior to back filling to ascertain the number and size of roots cut, to suggest the necessary
remedial repairs.
Remedial repairs: An arborist shall have the responsibility of observing all ongoing activities that
may affect the trees and prescribing necessary remedial work to ensure the health and stability
of the trees. This includes, but is not limited to, all arborist activities brought out in the previous
sections. In addition, pruning, as outlined in the "pruning standards" of the western chapter of the
International Society of Arboriculture, shall be prescribed as necessary. Fertilizing, aeration,
irrigation, pest control and other activities shall be prescribed according to the tree needs, local
site requirements, and state agricultural pest control laws. All specifications shall be in writing.
For pest control operations, consult the local county agricultural commissioner's office for
individuals licensed as pest control advisors or pest control operators.
Final inspection: Upon completion of the project, the arborist shall review all work undertaken
that may impact the existing trees. Special attention shall be given to cuts and fills, compacting,
drainage, pruning and future remedial work. An arborist should submit a final report in writing
outlining the ongoing remedial care following the final inspection.
Maintenance Recommendations for Trees to Remain
Regular maintenance, designed to promote plant health and vigor, ensures longevity of existing
trees. Regular inspections and the necessary follow-up care of mulching, fertilizing, and pruning,
can detect problems and correct them before they become damaging or fatal.
Tree Inspection: Regular inspections of mature trees at least once a year can prevent or reduce
the severity of future disease, insect, and environmental problems. During tree inspection, four
characteristics of tree vigor should be examined: new leaves or buds, leaf size, twig growth, and
absence of crown dieback (gradual death of the upper part of the tree). A reduction in the
extension of shoots (new growing parts), such as buds or new leaves, is a reliable cue that the
tree’s health has recently changed. Growth of the shoots over the past three years may be
compared to determine whether there is a reduction in the tree’s typical growth pattern. Further
signs of poor tree health are trunk decay, crown dieback, or both. These symptoms often indicate
problems that began several years before. Loose bark or deformed growths, such as trunk conks
(mushrooms), are common signs of stem decay. Any abnormalities found during these
inspections, including insect activity and spotted, deformed, discolored, or dead leaves and twigs,
should be noted and observed closely.
Mulching: Mulch, or decomposed organic material, placed over the root zone of a tree reduces
environmental stress by providing a root environment that is cooler and contains more moisture
than the surrounding soil. Mulch can also prevent mechanical damage by keeping machines such
as lawn mowers and string trimmers away from the tree’s base. Furthermore, mulch reduces
competition from surrounding weeds and turf. To be most effective, mulch should be placed 2 to
4 inches deep and cover the entire root system, which may be as far as 2 or 3 times the diameter
of the branch spread of the tree. If the area and activities happening around the tree do not permit
the entire area to be mulched, it is recommended that as much of the area under the drip line of
the tree is mulched as possible. When placing mulch, care should be taken not to cover the actual
trunk of the tree. This mulch-free area, 1 to 2 inches wide at the base, is enough to avoid moist
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 6
bark conditions and prevent trunk decay. An organic mulch layer 2 to 4 inches deep of loosely
packed shredded leaves, pine straw, peat moss, or composted wood chips is adequate. Plastic
should not be used as it interferes with the exchange of gases between soil and air, which inhibits
root growth. Thicker mulch layers, 5 to 6 inches deep or greater, may also inhibit gas exchange.
Fertilization: Trees require certain nutrients (essential elements) to function and grow. Urban
landscape trees may be growing in soils that do not contain enough available nutrients for
satisfactory growth and development. In certain situations, it may be necessary to fertilize to
improve plant vigor. Fertilizing a tree can improve growth; however, if fertilizer is not applied
wisely, it may not benefit the tree at all and may even adversely affect the tree. Mature trees
making satisfactory growth may not require fertilization. When considering supplemental fertilizer,
it is important to consider nutrients deficiencies and how and when to amend the deficiencies.
Soil conditions, especially pH and organic matter content, vary greatly, making the proper
selection and use of fertilizer a somewhat complex process. To that end, it is recommended that
the soil be tested for nutrient content. A soil testing laboratory and can give advice on application
rates, timing, and the best blend of fertilizer for each tree and other landscape plants on site.
Mature trees have expansive root systems that extend from 2 to 3 times the size of the leaf
canopy. A major portion of actively growing roots is located outside the tree’s drip line.
Understanding the actual size and extent of a tree’s root system before applying fertilizer is
paramount to determine quantity, type and rate at which to best apply fertilizer. Always follow
manufacturer recommendations for use and application.
Pruning: Pruning is often desirable or necessary to remove dead, diseased, or insect-infested
branches and to improve tree structure, enhance vigor, or maintain safety. Because each cut has
the potential to change the growth of (or cause damage to) a tree, no branch should be removed
without reason. Removing foliage from a tree has two distinct effects on growth: (1) it reduces
photosynthesis and, (2) it may reduce overall growth. Pruning should always be performed
sparingly. Caution must be taken not to over-prune as a tree may not be able to gather and
process enough sunlight to survive. Pruning mature trees may require special equipment, training,
and experience. Arborists are equipped to provide a variety of services to assist in performing
the job safely and reducing risk of personal injury and property damage (See also Addendum A -
ANSI A300 Part 1 Pruning Standards).
Removal: There are circumstances when removal is necessary. An arborist can help decide
whether a tree should be removed. Professionally trained arborists have the skills and equipment
to safely and efficiently remove trees. Removal is recommended when a tree: (1) is dead, dying,
or considered irreparably hazardous; (2) is causing an obstruction or is crowding and causing
harm to other trees and the situation is impossible to correct through pruning; (3) is to be replaced
by a more suitable specimen, and; (4) should be removed to allow for construction. Pruning or
removing trees, especially large trees, can be dangerous work. It should be performed only by
those trained and equipped to work safely in trees.
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October 8, 2019 7
Terms and Conditions
The following terms and conditions apply to all oral and written reports and correspondence
pertaining to consultations, inspections and activities of RRM Design Group.
1. The scope of any report or other correspondence is limited to the trees and conditions
specifically mentioned in those reports and correspondence. RRM Design Group assumes
no liability for the failure of trees or parts of trees, either inspected or otherwise. RRM
Design Group assumes no responsibility to report on the condition of any tree or landscape
feature not specifically requested by the named client.
2. No tree described in this report was climbed, unless otherwise stated. RRM Design Group
does not take responsibility for any defects, which could have only been discovered by
climbing. A full root collar inspection, consisting of excavating the soil around the tree to
uncover the root collar and major buttress roots was not performed unless otherwise
stated. RRM Design Group does not take responsibility for any root defects, which could
only have been discovered by such an inspection.
3. RRM Design Group shall not be required to provide further documentation, give testimony,
be deposed, or attend court by reason of this appraisal or report unless subsequent
contractual arrangements are made, including payment of additional fees for such
services as described by RRM Design Group or in the schedule of fees or contract.
4. RRM Design Group guarantees no warrantee, either expressed or implied, as to the
suitability of the information contained in the reports for any reason. It is the responsibility
of the client to determine applicability to his/her case.
5. Any report and the values, observations and recommendations expressed therein
represent the professional opinion of RRM Design Group, and the fee for services is in no
manner contingent upon the reporting of a specified value nor upon any finding to be
reported.
6. Any photographs, diagrams, graphs, sketches or other graphic material included in any
report, being intended solely as visual aids, are not necessarily to scale and should not be
construed as engineering reports or surveys, unless otherwise noted in the report. Any
reproductions of graphic material or the work produced by other persons, is intended
solely for the purpose of clarification and ease of reference. Inclusion of said information
does not constitute a representation by RRM Design Group as to the sufficiency or
accuracy of that information.
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 8
GV
10
9
11
12
2
3
4
5
8
7
6
1
14
13
15
28
29
27
19 26
20-25
16
17
18
31
30
34-37
3332
38 49
47
48
55
56
41
40
43-45
46
39
51
50
42
58
57 53-54
64
63
125
59
134
84
8786
85
88-90
94
95
96-12391-93
52
124
73-83
65-72
148
179
60-61
62
158
159-178
135-147
126-133
149-157
159-178
185-200201205206
202-204
Exhibit A - Tree Location Map
TANK
F
A
R
M
R
D
RV STORAGE AREA
MOBILE HOME,
TYPICAL
RIPARIAN TREE
DRIPLINE, TYPICAL.
NOT PART OF THIS
SCOPE
TREE 161. LAST
TAGGED TREE
TOP OF BANK,
TYPICAL
EXISTING PALM
TREE, TYPICAL
EXISTING TREE,
TYPICAL
SCALE: 1" = 80'
TOP OF BANK,
TYPICAL
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 9
Species Quantity % of Site DBH Quantity
Callistemon viminalis 1 0%<12"58
Citrus sp.1 0%12-23.9"129
Eucalyptus species 16 8%>24"19
Juglans californica 2 1%Total 206
Juniperus chinensis 9 4%
Ligustrum lucidum 116 56%
Myoporum laetum 1 0%
Liquidambar styraciflua 2 1%
Pittosporum undulatum 2 1%
Platanus racemosa 1 0%
Populus fremontii 1 0%
Prunus armeniaca 1 0%
Prunus cerasifera 2 1%
Prunus ilicifolia 7 3%
Pyracantha coccinea 1 0%
Quercus agrifolia 1 0%
Robinia pseudoacacia 5 2%
Schinus molle 4 2%
Sequoia sempervirens 1 0%
Syzygium paniculatum 6 3%
Ulmus parvifolia 1 0%
Washingtonia robusta 18 9%
Xylosma congestum 7 3%
Total Trees 206 100%
Tree Quantity by Species
Table 1 - Tree Quantity Summary
Tree Quantity by Size
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 10
Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
1 Washingtonia robusta Mexican fan palm 16.0 12 Good
2 Platanus racemeosa western sycamore 3.5 6 Moderate
3 Washingtonia robusta Mexican fan palm 19.0 12 Good
4 Washingtonia robusta Mexican fan palm 17.0 12 Good
5 Washingtonia robusta Mexican fan palm 20.5 12 Good
6 Washingtonia robusta Mexican fan palm 16.0 12 Good
7 Washingtonia robusta Mexican fan palm 15.5 12 Good
8 Washingtonia robusta Mexican fan palm 17.5 12 Good
9 Schinus molle California pepper tree 16.0 20 Moderate
10 Juniperus chinensis 'Kaizuka'Hollywood juniper 26.0 8 Moderate
11 Juniperus chinensis 'Kaizuka'Hollywood juniper 39.0 12 Moderate
12 Juniperus chinensis 'Kaizuka'Hollywood juniper 37.0 10 Moderate
13 Ligustrum lucidum glossy privet 8.0 15 Moderate
14 Washingtonia robusta Mexican fan palm 22.0 10 Moderate
15 Juniperus chinensis 'Kaizuka'Hollywood juniper 67.5 20 Moderate
16 Pittosporum undulatum Victorian box 9.0 14 Good
17 Juniperus chinensis 'Kaizuka'Hollywood juniper 30.0 14 Moderate
18 Washingtonia robusta Mexican fan palm 23.0 10 Moderate
19 Washingtonia robusta Mexican fan palm 21.0 10 Moderate
20 Syzygium paniculatum Australian brush cherry 14.5 6 Moderate
Moderate - Trees in somewhat declining health and/or exhibits structural defects that cannot be abated with treatment. Trees will require more
intense management and will have a shorter lifespan than those in the 'Good' category.
Good - Trees with good health and structural stability that have the potential for longevity at the site.
Poor - Trees in poor health or with significant structural defects that cannot be mitigated. Tree is expected to decline, regardless of treatment.
Table 2 - Tree Evaluation Summary
Prepared By: Jake Minnick, ISA Certified Arborist #WE-11830A
DBH Measurement Height: 54"
Date of Evaluation: 10/2/19 &10/8/19
Suitability for Preservation is based on the following
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 11
Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
21 Syzygium paniculatum Australian brush cherry 6.0 5 Moderate
22 Syzygium paniculatum Australian brush cherry 5.0 4 Moderate
23 Syzygium paniculatum Australian brush cherry 8.0 6 Moderate
24 Syzygium paniculatum Australian brush cherry 7.0 5 Moderate
25 Syzygium paniculatum Australian brush cherry 12.0 6 Moderate
26 Prunus armeniaca apricot 13.0 11 Moderate
27 Washingtonia robusta Mexican fan palm 22.0 12 Moderate
28 Ligustrum lucidum glossy privet 8.0 10 Moderate
29 Ligustrum lucidum glossy privet 38.0 24 Moderate
30 Ligustrum lucidum glossy privet 16.0 8 Poor
31 Washingtonia robusta Mexican fan palm 19.0 10 Moderate
32 Juniperus chinensis 'Kaizuka'Hollywood juniper 18.0 3 Poor
33 Juniperus chinensis 'Kaizuka'Hollywood juniper 20.0 3 Poor
34 Ligustrum lucidum glossy privet 24.0 18 Poor
35 Callistemon viminalis weeping bottlebrush 10.0 5 Poor
36 Ligustrum lucidum glossy privet 28.0 18 Moderate
37 Ligustrum lucidum glossy privet 9.0 10 Poor
38 Ligustrum lucidum glossy privet 23.0 14 Poor
39 Juniperus chinensis 'Kaizuka'Hollywood juniper 50.0 25 Moderate
40 Washingtonia robusta Mexican fan palm 20.0 10 Moderate
41 Washingtonia robusta Mexican fan palm 24.0 10 Moderate
42 Ulmus parvifolia Chinese elm 11.0 12 Poor
43 Ligustrum lucidum glossy privet 18.0 15 Poor
44 Ligustrum lucidum glossy privet 12.0 6 Poor
45 Ligustrum lucidum glossy privet 8.0 5 Moderate
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 12
Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
46 Pittosporum undulatum Victorian box 13.0 12 Moderate
47 Populus fremontii Fremont cottonwood 17.0 28 Poor
48 Washingtonia robusta Mexican fan palm 22.0 10 Moderate
49 Citrus x sinensis orange 11.0 6 Poor
50 Liquidambar styraciflua sweet gum 16.0 22 Moderate
51 Ligustrum lucidum glossy privet 32.0 30 Moderate
52 Washingtonia robusta Mexican fan palm 23.0 10 Moderate
53 Prunus cerasifera 'Atropurpurea'purple leaf plum 12.0 12 Poor
54 Prunus cerasifera cherry plum 8.0 8 Poor
55 Washingtonia robusta Mexican fan palm 23.0 10 Moderate
56 Washingtonia robusta Mexican fan palm 24.0 12 Moderate
57 Juniperus chinensis 'Kaizuka'Hollywood juniper 80.5 23 Moderate
58 Myoporum laetum mousehole tree 6.0 7 Poor
59 Juglans californica California black walnut 17.0 21 Good
60 Eucalyptus polyanthemos silver dollar eucalyptus 13.0 15 Moderate
61 Juglans californica California black walnut 15.0 22 Moderate
62 Eucalyptus polyanthemos silver dollar eucalyptus 13.0 18 Moderate
63 Eucalyptus cinerea silver dollar tree 26.5 17 Poor
64 Eucalyptus nicholii Nichol's willowleafed
peppermint 46.0 35 Moderate
65 Xylosma congestum shiny xylosma 11.5 10 Moderate
66 Xylosma congestum shiny xylosma 14.0 12 Moderate
67 Xylosma congestum shiny xylosma 12.0 10 Moderate
68 Xylosma congestum shiny xylosma 13.0 12 Moderate
69 Ligustrum lucidum glossy privet 7.0 6 Moderate
70 Eucalyptus globulus blue gum 34.0 25 Poor
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 13
Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
71 Xylosma congestum shiny xylosma 11.0 10 Moderate
72 Pyracantha coccinea scarlet firethorn 17.0 15 Moderate
73 Xylosma congestum shiny xylosma 11.0 12 Moderate
74 Xylosma congestum shiny xylosma 14.0 15 Moderate
75 Ligustrum lucidum glossy privet 9.0 10 Moderate
76 Prunus ilicifolia ssp lyonii Catalina cherry 6.0 7 Moderate
77 Prunus ilicifolia ssp lyonii Catalina cherry 9.0 10 Moderate
78 Ligustrum lucidum glossy privet 6.5 8 Poor
79 Prunus ilicifolia ssp lyonii Catalina cherry 11.0 10 Moderate
80 Prunus ilicifolia ssp lyonii Catalina cherry 13.0 12 Moderate
81 Prunus ilicifolia ssp lyonii Catalina cherry 10.0 10 Moderate
82 Prunus ilicifolia ssp lyonii Catalina cherry 17.0 15 Poor
83 Prunus ilicifolia ssp lyonii Catalina cherry 14.0 14 Moderate
84 Liquidambar styraciflua sweet gum 9.0 15 Moderate
85 Eucalyptus globulus blue gum 11.5 17 Moderate
86 Eucalyptus globulus blue gum 15.0 16 Poor
87 Eucalyptus nicholii Nichol's willowleafed
peppermint 18.0 20 Poor
88 Eucalyptus nicholii Nichol's willowleafed
peppermint 7.5 14 Poor
89 Eucalyptus sideroxylon red ironbark 32.0 24 Moderate
90 Eucalyptus sideroxylon red ironbark 34.0 30 Moderate
91 Schinus molle California pepper tree 22.0 16 Moderate
92 Schinus molle California pepper tree 13.5 8 Moderate
93 Schinus molle California pepper tree 8.0 6 Moderate
94 Sequoia sempervirens coast redwood 13.0 6 Poor
95 Ligustrum lucidum glossy privet 17.0 6 Moderate
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 14
Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
96 Ligustrum lucidum glossy privet 13.0 6 Moderate
97 Ligustrum lucidum glossy privet 14.0 6 Moderate
98 Ligustrum lucidum glossy privet 11.0 6 Moderate
99 Ligustrum lucidum glossy privet 19.0 6 Moderate
100 Ligustrum lucidum glossy privet 12.0 6 Moderate
101 Ligustrum lucidum glossy privet 10.0 6 Moderate
102 Ligustrum lucidum glossy privet 11.0 6 Moderate
103 Ligustrum lucidum glossy privet 18.0 6 Moderate
104 Ligustrum lucidum glossy privet 15.0 6 Moderate
105 Ligustrum lucidum glossy privet 14.0 6 Moderate
106 Ligustrum lucidum glossy privet 15.0 6 Moderate
107 Ligustrum lucidum glossy privet 11.0 6 Moderate
108 Ligustrum lucidum glossy privet 9.0 6 Moderate
109 Ligustrum lucidum glossy privet 10.0 6 Moderate
110 Ligustrum lucidum glossy privet 16.0 6 Moderate
111 Ligustrum lucidum glossy privet 10.0 6 Moderate
112 Ligustrum lucidum glossy privet 12.0 6 Moderate
113 Ligustrum lucidum glossy privet 10.0 6 Moderate
114 Ligustrum lucidum glossy privet 14.0 6 Moderate
115 Ligustrum lucidum glossy privet 8.0 6 Moderate
116 Ligustrum lucidum glossy privet 12.0 6 Moderate
117 Ligustrum lucidum glossy privet 10.0 6 Moderate
118 Ligustrum lucidum glossy privet 14.0 6 Moderate
119 Ligustrum lucidum glossy privet 10.0 6 Moderate
120 Ligustrum lucidum glossy privet 14.0 6 Moderate
Arborist Report - 650 Tank Farm ATTACHMENT 2
October 8, 2019 15
Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
121 Ligustrum lucidum glossy privet 12.0 6 Moderate
122 Ligustrum lucidum glossy privet 12.0 6 Moderate
123 Ligustrum lucidum glossy privet 10.0 6 Moderate
124 Eucalyptus globulus blue gum 96.0 45 Moderate
125 Eucalyptus nicholii Nichol's willowleafed
peppermint 32.0 25 Moderate
126 Ligustrum lucidum glossy privet 14.0 6 Moderate
127 Ligustrum lucidum glossy privet 12.0 6 Moderate
128 Ligustrum lucidum glossy privet 12.0 6 Moderate
129 Ligustrum lucidum glossy privet 9.0 6 Moderate
130 Ligustrum lucidum glossy privet 11.0 6 Moderate
131 Ligustrum lucidum glossy privet 13.0 6 Moderate
132 Ligustrum lucidum glossy privet 16.0 6 Moderate
133 Ligustrum lucidum glossy privet 14.0 8 Moderate
134 Robinia pseudoacacia black locust 12.5 18 Moderate
135 Ligustrum lucidum glossy privet 11.0 8 Moderate
136 Robinia pseudoacacia black locust 6.0 7 Poor
137 Ligustrum lucidum glossy privet 19.0 14 Moderate
138 Ligustrum lucidum glossy privet 11.0 6 Moderate
139 Ligustrum lucidum glossy privet 12.0 6 Moderate
140 Ligustrum lucidum glossy privet 13.0 7 Moderate
141 Ligustrum lucidum glossy privet 14.0 8 Poor
142 Ligustrum lucidum glossy privet 9.0 6 Moderate
143 Ligustrum lucidum glossy privet 22.0 16 Moderate
144 Ligustrum lucidum glossy privet 9.0 6 Moderate
145 Ligustrum lucidum glossy privet 9.0 6 Moderate
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Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
146 Ligustrum lucidum glossy privet 12.0 10 Moderate
147 Ligustrum lucidum glossy privet 11.0 8 Moderate
148 Eucalyptus cinerea silver dollar tree 30.0 25 Poor
149 Ligustrum lucidum glossy privet 14.0 8 Moderate
150 Ligustrum lucidum glossy privet 10.0 6 Moderate
151 Ligustrum lucidum glossy privet 12.0 8 Moderate
152 Ligustrum lucidum glossy privet 14.0 6 Moderate
153 Ligustrum lucidum glossy privet 12.0 4 Poor
154 Ligustrum lucidum glossy privet 9.0 6 Moderate
155 Ligustrum lucidum glossy privet 12.0 8 Moderate
156 Ligustrum lucidum glossy privet 14.0 12 Moderate
157 Ligustrum lucidum glossy privet 18.0 8 Moderate
158 Robinia pseudoacacia black locust 11.0 21 Moderate
159 Ligustrum lucidum glossy privet 17.0 8 Poor
160 Ligustrum lucidum glossy privet 20.0 10 Moderate
161 Ligustrum lucidum glossy privet 23.0 14 Moderate
162 Ligustrum lucidum glossy privet 18.0 10 Moderate
163 Ligustrum lucidum glossy privet 16.0 9 Moderate
164 Ligustrum lucidum glossy privet 17.0 8 Moderate
165 Ligustrum lucidum glossy privet 20.0 8 Moderate
166 Ligustrum lucidum glossy privet 18.0 8 Moderate
167 Ligustrum lucidum glossy privet 19.0 8 Moderate
168 Ligustrum lucidum glossy privet 24.0 10 Moderate
169 Ligustrum lucidum glossy privet 14.0 8 Moderate
170 Ligustrum lucidum glossy privet 18.0 8 Moderate
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Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
171 Ligustrum lucidum glossy privet 17.0 7 Moderate
172 Ligustrum lucidum glossy privet 13.0 7 Moderate
173 Ligustrum lucidum glossy privet 12.0 8 Moderate
174 Ligustrum lucidum glossy privet 19.0 10 Poor
175 Ligustrum lucidum glossy privet 14.0 6 Poor
176 Ligustrum lucidum glossy privet 16.0 10 Moderate
177 Ligustrum lucidum glossy privet 12.0 6 Moderate
178 Ligustrum lucidum glossy privet 9.0 6 Moderate
179 Eucalyptus cinerea silver dollar tree 25.0 30 Moderate
180 Ligustrum lucidum glossy privet 23.0 14 Poor
181 Ligustrum lucidum glossy privet 16.0 8 Moderate
182 Ligustrum lucidum glossy privet 24.0 14 Moderate
183 Ligustrum lucidum glossy privet 12.0 6 Moderate
184 Ligustrum lucidum glossy privet 17.0 8 Moderate
185 Robinia pseudoacacia black locust 7.0 6 Poor
186 Ligustrum lucidum glossy privet 18.0 10 Moderate
187 Ligustrum lucidum glossy privet 18.0 8 Moderate
188 Ligustrum lucidum glossy privet 17.0 8 Moderate
189 Ligustrum lucidum glossy privet 21.0 10 Moderate
190 Ligustrum lucidum glossy privet 23.0 12 Moderate
191 Ligustrum lucidum glossy privet 16.0 8 Moderate
192 Ligustrum lucidum glossy privet 14.0 6 Poor
193 Ligustrum lucidum glossy privet 14.0 6 Moderate
194 Ligustrum lucidum glossy privet 19.0 8 Moderate
195 Eucalyptus nicholii Nichol's willowleafed
peppermint 10.0 10 Poor
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Tree Tag Botanical Name Common Name Diameter at Breast
Height (in.)Crown Diameter (ft.)Health
196 Ligustrum lucidum glossy privet 17.0 10 Moderate
197 Ligustrum lucidum glossy privet 18.0 6 Moderate
198 Ligustrum lucidum glossy privet 21.0 8 Moderate
199 Ligustrum lucidum glossy privet 20.0 8 Moderate
200 Ligustrum lucidum glossy privet 18.0 6 Moderate
201 Robinia pseudoacacia black locust 6.0 6 Poor
202 Ligustrum lucidum glossy privet 12.0 6 Poor
203 Ligustrum lucidum glossy privet 18.0 6 Moderate
204 Ligustrum lucidum glossy privet 20.0 8 Moderate
205 Quercus agrifolia coast live oak 7.0 8 Moderate
206 Ligustrum lucidum glossy privet 16.0 10 Moderate
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Appendix A - ANSI A300 - Part 1 – Pruning Standards
American National Standard for Tree Care Operations – Tree, Shrub, and Other Woody Plant
Maintenance – Standard Practice (Pruning)
1 ANSI A300 standards
1.1 Scope
ANSI A300 standards present performance standards for the care and maintenance of trees,
shrubs, and other woody plants.
1.2 Purpose
ANSI A300 standards are intended as guides for federal, state, municipal and
private authorities including property owners, property managers, and utilities in the drafting of
their maintenance specifications.
1.3 Application
ANSI A300 standards shall apply to any person or entity engaged in the business, trade, or
performance of repairing, maintaining, or preserving trees, shrubs, or other woody plants.
1.4 Implementation
Specifications for tree maintenance should be written and administered by an arborist.
2 Part 1 – Pruning standards
2.1 Purpose
The purpose of this document is to provide standards for developing specifications for tree
pruning.
2.2 Reasons for pruning
The reasons for tree pruning may include, but are not limited to, reducing risk,
maintaining or improving tree health and structure, improving aesthetics, or satisfying a specific
need. Pruning practices for agricultural, horticultural production, or silvicultural purposes are
exempt from this standard.
2.3 Safety
2.3.1 Tree maintenance shall be performed only by arborists or arborist trainees who, through
related training or on-the-job experience, or both, are familiar with the practices and hazards of
arboriculture and the equipment used in such operations.
2.3.2 This standard shall not take precedence over arboricultural safe work practices.
2.3.3 Operations shall comply with applicable Occupational Safety and Health Administration
(OSHA) standards, ANSI Z133.1, as well as state and local regulations.
3 Normative references
The following standards contain provisions, which, through reference in the text, constitute
provisions of this American National Standard. All standards are subject to revision, and parties
to agreements based on this American National Standard shall apply the most recent edition of
the standards indicated below.
• ANSI Z60.1, Nursery stock
• ANSI Z133.1, Tree care operations - Pruning, trimming, repairing, maintaining, and removing
trees, and cutting brush - Safety requirements
• 29 CFR 1910, General industry
• 29 CFR 1910.268, Telecommunications
• 29 CFR 1910.269, Electric power generation, transmission, and distribution
• 29 CFR 1910.331 - 335, Electrical safety-related work practices
4 Definitions
4.1 anvil-type pruning tool: A pruning tool that has a sharp straight blade that cuts against a
flat metal cutting surface, in contrast to a hook-and-blade type pruning tool (4.21).
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4.2 apical dominance: Inhibition of growth of lateral buds by the terminal bud.
4.3 arboriculture: The art, science, technology, and business of commercial, public, and utility
tree care.
4.4 arborist: An individual engaged in the profession of arboriculture who, through experience,
education, and related training, possesses the competence to provide for or supervise the
management of trees and other woody plants.
4.5 arborist trainee: An individual undergoing on-the-job training to obtain the experience and
the competence required to provide for or supervise the management of trees and other woody
plants. Such trainees shall be under the direct supervision of an arborist.
4.6 branch bark ridge: The raised area of bark in the branch crotch that marks where the
branch and parent meet.
4.7 branch collar: The swollen area at the base of a branch.
4.8 callus: Undifferentiated tissue formed by the cambium around a wound.
4.9 cambium: The dividing layer of cells that forms sapwood (xylem) to the inside and inner
bark (phloem) to the outside.
4.10 cleaning: Selective pruning to remove one or more of the following parts:
dead, diseased, and/ or broken branches (5.6.1).
4.11 climbing spurs: Sharp, pointed devices affixed to a climber’s boot used to assist in
climbing trees. (syn.: gaffs, hooks, spurs, spikes, climbers)
4.12 closure: The process of woundwood covering a cut or other tree injury.
4.13 crown: The leaves and branches of a tree measured from the lowest branch on the trunk
to the top of the tree.
4.14 decay: The degradation of woody tissue caused by microorganisms.
4.15 espalier: The combination of pruning, supporting, and training branches to orient a plant in
one plane (5.7.2).
4.16 establishment: The point after planting when a tree’s root system has grown sufficiently
into the surrounding soil to support shoot growth and anchor the tree.
4.17 facility: A structure or equipment used to deliver or provide protection for the delivery of an
essential service, such as electricity or communications.
4.18 final cut: A cut that completes the removal or reduction of a branch or stub.
4.19 frond: A leaf of a palm.
4.20 heading: 1. Cutting a currently growing, or a 1-year-old shoot, back to a bud. 2. Cutting an
older branch or stem back to a stub in order to meet a defined structural objective. 3. Cutting an
older branch or stem back to a lateral branch not large enough to assume apical dominance in
order to meet a defined structural objective. Heading may or may not be an acceptable pruning
practice, depending on the application.
4.21 hook-and-blade-type pruning tool: A pruning tool that has a sharp curved blade that
overlaps a supporting hook; in contrast to an anvil-type pruning tool (4.1). (syn.: by-pass pruner)
4.22 interfering branches: Crossing, rubbing, or upright branches that have the potential to
damage tree structure and/or health.
4.23 internodal cut: A cut located between lateral branches or buds.
4.24 lateral branch: A shoot or stem growing from a parent branch or stem.
4.25 leader: A dominant or co-dominant, upright stem.
4.26 limb: A large, prominent branch.
4.27 lion’s tailing: The removal of an excessive number of inner, lateral branches from parent
branches. Lion’s tailing is not an acceptable pruning practice (5.5.7).
4.28 mechanical pruning: A utility pruning technique where large-scale power equipment is
used to cut back branches (5.9.2.2).
4.29 parent branch or stem: A tree trunk, limb, or prominent branch from which shoots or
stems grow.
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4.30 peeling: For palms: The removal of only the dead frond bases at the point they make
contact with the trunk without damaging living trunk tissue. (syn.: shaving)
4.31 petiole: A stalk of a leaf or frond.
4.32 phloem: Inner bark conducting tissues that transport organic substances, primarily
carbohydrates, from leaves and stems to other parts of the plant.
4.33 pollarding: The maintenance of a tree by making internodal cuts to reduce the size of a
young tree, followed by the annual removal of shoot growth at its point of origin (5.7.3).
4.34 pruning: The selective removal of plant parts to meet specific goals and objectives.
4.35 qualified line-clearance arborist: An individual who, through related training and on-the
job experience, is familiar with the equipment and hazards in line clearance and has
demonstrated the ability to perform the special techniques involved. This individual may or may
not be currently employed by a line- clearance contractor.
4.36 qualified line-clearance arborist trainee: An individual undergoing line-clearance training
and who, in the course of such training, is familiar with the hazards and equipment involved in
line clearance and has demonstrated ability in the performance of the special techniques
involved.
4.37 raising: Selective pruning to provide vertical clearance (5.6.3).
4.38 reduction: Selective pruning to decrease height and/or spread (5.6.4).
4.39 remote/rural areas: Locations associated with very little human activity, land
improvement, or development.
4.40 restoration: Selective pruning to improve the structure, form, and appearance of trees that
have been severely headed, vandalized, or damaged (5.7.4).
4.41 shall: As used in this standard, denotes a mandatory requirement.
4.42 should: As used in this standard, denotes an advisory recommendation.
4.43 stub: An undesirable short length of a branch remaining after a break or incorrect pruning
cut is made.
4.44 thinning: Selective pruning to reduce density of live branches (5.6.2).
4.45 throwline: A small, lightweight line with a weighted end used to position a climber’s rope in
a tree.
4.46 topping: The reduction of a tree’s size using heading cuts that shorten limbs or branches
back to a predetermined crown limit. Topping is not an acceptable pruning practice (5.5.7).
4.47 tracing: The removal of loose, damaged tissue from in and around the wound.
4.48 urban/residential areas: Locations, such as populated areas including public and private
property, that are normally associated with human activity.
4.49 utility: An entity that delivers a public service, such as electricity or communications.
4.50 utility space: The physical area occupied by a utility’s facilities and the additional space
required to ensure its operation.
4.51 vista pruning: Selective pruning to allow a specific view (5.7.5).
4.52 watersprouts: New stems originating from epicormic buds. (syn.: epicormic shoots)
4.53 wound: An opening that is created when the bark of a live branch or stem is penetrated,
cut, or removed.
4.54 woundwood: Partially differentiated tissue responsible for closing wounds. Woundwood
develops from callus associated with wounds.
4.55 xylem: Wood tissue. Active xylem is sapwood; inactive xylem is heartwood.
4.56 young tree: A tree young in age or a newly transplanted tree.
5 Pruning practices
5.1 Tree inspection
5.1.1 An arborist or arborist trainee shall visually inspect each tree before beginning work.
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5.1.2 If a condition is observed requiring attention beyond the original scope of the work, the
condition should be reported to an immediate supervisor, the owner, or the person responsible
for authorizing the work.
5.2 Tools and equipment
5.2.1 Equipment and work practices that damage living tissue and bark beyond the scope of the
work should be avoided.
5.2.2 Climbing spurs shall not be used when climbing and pruning trees. Exceptions:
-when limbs are more than throwline distance apart and there is no other means
of climbing the tree;
-when the bark is thick enough to prevent damage to the cambium;
-in remote or rural utility rights-of-way.
5.3 Pruning cuts
5.3.1 Pruning tools used in making pruning cuts shall be sharp.
5.3.2 A pruning cut that removes a branch at its point of origin shall be made close to the trunk
or parent limb, without cutting into the branch bark ridge or collar, or leaving a stub (see Figure
5.3.2).
5.3.3 A pruning cut that reduces the length of a branch or parent stem should bisect the angle
between its branch bark ridge and an imaginary line perpendicular to the branch or stem (see
Figure 5.3.3).
5.3.4 The final cut shall result in a flat surface with adjacent bark firmly attached.
5.3.5 When removing a dead branch, the final cut shall be made just outside the collar of living
tissue.
5.3.6 Tree branches shall be removed in such a manner so as not to cause damage to other
parts of the tree or to other plants or property. Branches too large to support with one hand shall
be precut to avoid splitting of the wood or tearing of the bark (see Figure 5.3.2). Where
necessary, ropes or other equipment shall be used to lower large branches or portions of
branches to the ground.
5.3.7 A final cut that removes a branch with a narrow angle of attachment should be made from
the outside of the branch to prevent damage to the parent limb (see Figure 5.3.7).
5.3.8 Severed limbs shall be removed from the crown upon completion of the pruning, at times
when the tree would be left unattended, or at the end of the workday.
5.4 Wound treatment
5.4.1 Wound treatments should not be used to cover wounds or pruning cuts, except when
recommended for disease, insect, mistletoe, or sprout con trol, or for cosmetic reasons.
5.4.2 Wound treatments that are damaging to tree tissues shall not be used.
5.4.3 When tracing wounds, only loose, damaged tissue should be removed.
5.5 Pruning objectives
5.5.1 Pruning objectives shall be established prior to beginning any pruning operation. To obtain
the defined objective, the growth cycles and structure of individual species and the type of
pruning to be performed should be considered.
5.5.3 Not more than 25 percent of the foliage should be removed within an
annual growing season. The percentage and distribution of foliage to be removed shall be
adjusted according to the plant’s species, age, health, and site.
5.5.4 Not more than 25 percent of the foliage of a branch or limb should be removed when it is
cut back to a lateral. That lateral should be large enough to assume apical dominance.
5.5.5 Pruning cuts should be made in accordance with 5.3 Pruning cuts.
5.5.6 Heading should be considered an acceptable practice for shrub or specialty pruning when
needed to reach a defined objective.
5.5.7 Topping and lion’s tailing shall be considered unacceptable pruning practices for trees.
5.6 Pruning types
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Specifications for pruning should consist of, but are not limited to, one or more of the following
types:
5.6.1 Clean: Cleaning shall consist of selective pruning to remove one or more of the following
parts: dead, diseased, and/or broken branches.
5.6.1.1 Location of parts to be removed shall be specified.
5.6.1.2 Size range of parts to be removed shall be specified.
5.6.2 Thin: Thinning shall consist of selective pruning to reduce density of live branches.
5.6.2.1 Thinning should result in an even distribution of branches on individual limbs and
throughout the crown.
5.6.2.2 Not more than 25 percent of the crown should be removed within an annual
growing season.
5.6.2.3 Location of parts to be removed shall be specified.
5.6.2.4 Percentage of foliage and size range of parts to be removed shall be specified.
5.6.3 Raise: Raising shall consist of selective pruning to provide vertical clearance.
5.6.3.1 Vertical clearance should be specified.
5.6.3.2 Location and size range of parts to be removed should be specified.
5.6.4 Reduce: Reduction shall consist of selective pruning to decrease height and/or spread.
5.6.4.1 Consideration shall be given to the ability of a species to tolerate this type of
pruning.
5.6.4.2 Location of parts to be removed and clearance should be specified.
5.6.4.3 Size range of parts should be specified.
5.7 Specialty pruning
Consideration shall be given to the ability of a species to tolerate specialty pruning, using one or
more pruning types (5.6).
5.7.1 Young trees
5.7.1.1 The reasons for young tree pruning may include, but are not limited to,
reducing risk, maintaining or improving tree health and structure, improving
aesthetics, or satisfying a specific need.
5.7.1.2 Young trees that will not tolerate repetitive pruning and have the potential to
outgrow their space should be considered for relocation or removal.
5.7.1.3 At planting
5.7.1.3.1 Pruning should be limited to cleaning (5.6.1).
5.7.1.3.2 Branches should be retained on the lower trunk.
5.7.1.4 Once established
5.7.1.4.1 Cleaning should be performed (5.6.1).
5.7.1.4.2 Rubbing and poorly attached branches should be removed.
5.7.1.4.3 A central leader or leader(s) as appropriate should be developed.
5.7.1.4.4 A strong, properly spaced scaffold branch structure should be selected and
maintained.
5.7.1.4.5 Interfering branches should be reduced or removed.
5.7.2 Espalier
5.7.2.1 Branches that extend outside the desired plane of growth shall be pruned or tied
back.
5.7.2.2 Ties should be replaced as needed to prevent girdling the branches at the
attachment site.
5.7.3 Pollarding
5.7.3.1 Consideration shall be given to the ability of the individual tree to respond
to pollarding.
5.7.3.2 Management plans shall be made prior to the start of the pollarding
process for routine removal of watersprouts.
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5.7.3.3 Internodal cuts shall be made at specific locations to start the pollarding process.
After the initial cuts are made, no additional internodal cut shall be made.
5.7.3.4 Watersprouts growing from the cut ends of branches (knuckles) should be
removed annually during the dormant season.
5.7.4 Restoration
5.7.4.1 Restoration shall consist of selective pruning to improve the structure form, and
appearance of trees that have been severely headed, vandalized, or damaged.
5.7.4.2 Location in tree, size range of parts, and percentage of watersprouts to be
removed should be specified.
5.7.5 Vista pruning
5.7.5.1 Vista pruning shall consist of selective pruning to allow a specific view.
5.7.5.2 Size range of parts, location in tree, and percentage of foliage to be
removed should be specified.
5.8 Palm pruning
5.8.1 Palm pruning should be performed when fronds, fruit, or loose petioles may create
a dangerous condition.
5.8.2 Live healthy fronds, initiating at an angle of 45 degrees or greater from horizontal,
with frond tips at or below horizontal, should not be removed.
5.8.3 Fronds removed should be severed close to the petiole base without damaging
living trunk tissue.
5.8.4 Palm peeling (shaving) should consist of the removal of only the dead frond
bases at the point they make contact with the trunk without damaging living trunk tissue.
5.9 Utility pruning
5.9.1 General
5.9.1.1 The purpose of utility pruning is to prevent the loss of service, comply with
mandated clearance laws, prevent damage to equipment, avoid access
impairment, and uphold the intended usage of the facility/utility space.
5.9.1.2 Only a qualified line clearance arborist or line clearance arborist trainee shall be
assigned to line clearance work in accordance with ANSI Z133.1, 29, CFR 1910.331 –
335, 29 CFR 1910.268 or 29 CFR 1910.269.
5.9.1.3 Utility pruning operations are exempt from requirements in 5.1 Tree Inspection:
5.1.1 An arborist or arborist trainee shall visually inspect each tree before
beginning work.
5.1.2 If a condition is observed requiring attention beyond the original scope of
the work, the condition should be reported to an immediate supervisor, the
owner, or the person responsible for authorizing the work.
5.9.1.4 Safety inspections of the work area are required as outlined in ANSI Z133.1
4.1.3, job briefing.
5.9.2 Utility crown reduction pruning
5.9.2.1 Urban/residential environment
5.9.2.1.1 Pruning cuts should be made in accordance with 5.3, Pruning cuts. The
following requirements and recommendations of 5.9.2.1.1 are repeated from 5.3 Pruning
cuts.
5.9.2.1.1.1 A pruning cut that removes a branch at its point of origin shall be
made close to the trunk or parent limb, without cutting in the branch bark ridge or
collar, or leaving a stub (see Figure 5.3.2).
5.9.2.1.1.2 A pruning cut that reduces the length of a branch or parent stem
should bisect the angle between its branch bark ridge and an imaginary line
perpendicular to the branch or stem (see Figure 5.3.3).
5.9.2.1.1.3 The final cut shall result in a flat surface with adjacent bark firmly
attached.
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5.9.2.1.1.4 When removing a dead branch, the final cut shall be made just
outside the collar of living tissue.
5.9.2.1.1.5 Tree branches shall be removed in such a manner so as not to cause
damage to other parts of the tree or to other plants or property. Branches too
large to support with one hand shall be precut to avoid splitting of the wood or
tearing of the bark (see Figure 5.3.2). Where necessary, ropes or other
equipment shall be used to lower large branches or portions of branches to the
ground.
5.9.2.1.1.6 A final cut that removes a branch with a narrow angle of attachment
should be made from the bottom of the branch to prevent damage to the parent
limb (see Figure 5.3.7).
5.9.2.1.2 A minimum number of pruning cuts should be made to accomplish the purpose
of facility/utility pruning. The natural structure of the tree should be considered.
5.9.2.1.3 Trees directly under and growing into facility/utility spaces should be removed
or pruned. Such pruning should be done by removing entire branches or by removing
branches that have laterals growing into (or once pruned, will grow into) the facility/utility
space.
5.9.2.1.4 Trees growing next to, and into or toward facility/utility spaces should be
pruned by reducing branches to laterals (5.3.3) to direct growth away from the utility
space or by removing entire branches. Branches that, when cut, will produce
watersprouts that would grow into facilities and/or utility space should be removed.
5.9.2.1.5 Branches should be cut to laterals or the parent branch and not at a pre-
established clearing limit. If clearance limits are established, pruning cuts should be
made at laterals or parent branches outside the specified clearance zone.
5.9.2.2 Rural/remote locations – mechanical pruning
Cuts should be made close to the main stem, outside of the branch bark ridge and branch
collar. Precautions should be taken to avoid stripping or tearing of bark or excessive wounding.
5.9.3 Emergency service restoration
During a utility-declared emergency, service must be restored as quickly as
possible in accordance with ANSI Z133.1, 29 CFR 1910.331 – 335, 29 CFR
1910.268, or 29 CFR 1910.269. At such times it may be necessary, because of safety and the
urgency of service restoration, to deviate from the use of proper pruning techniques as defined
in this standard. Following the emergency, corrective pruning should be done as necessary.
Annex A (informative)
Reference publications
International Society of Arboriculture (ISA). 1995. Tree Pruning Guidelines.
Savoy, IL: International Society of Arboriculture (ISA).
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TYPE 1 BIKE RACK (2) 5-BIKE 10 SPACESTYPE 2 BIKE RACK (5) 3-BIKE 15 SPACES25 TOTAL BIKE SPACES650 TANK FARM MIXED-USEL250439-02-LP1920 FEBRUARY 20201” = 20’-0” (24X36 SHEET)01020 4002040 801” = 40’-0” (12X18 SHEET)LANDSCAPE SITE PLANPROPOSED CARPORTN.T.S.1ATTACHMENT 3