HomeMy WebLinkAboutCC Reso 2023-19 - Updating Tree Management Guidelines RESOLUTION 2023-19
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF UKIAH UPDATING
THE TREE MANAGEMENT GUIDELINES
WHEREAS, the periodic review of City policies provides an opportunity for improvement
through the addition of new information and best practices as well as the deletion of
ineffective elements of current policies; and
WHEREAS, since adoption of the 2014 Tree Management Guidelines, the growing threat
of climate change and advances in Urban Forest management best practices suggest a
potential need for an update to the policies, procedures, and practices involving Ukiah
Urban Forest protection and management; and
WHEREAS, Ukiah Municipal Code requires staff to maintain a Master Tree List.; and
WHEREAS, the City of Ukiah Climate Action Initiative identifies the need to Implement
nature-based climate solutions, Continue to develop the City of Ukiah's Tree Management
Guidelines, Enhance carbon sequestration capacity, and make efforts to convert from gas
powered to battery powered equipment when possible; and
WHEREAS, the Environment and Sustainability Element of the recently adopted 2040
General Plan identifies the need to protect the urban forest; and
WHEREAS, Staff have convened a panel of experts to review and make
recommendations on the Master Tree List; and
WHEREAS, Staff have consulted internally and externally on possible changes to the Tree
Management Guidelines; and
WHEREAS, Staff have presented a draft update to the current guidelines to the Public
Spaces Commission and incorporated their comments and recommendations;
NOW, THEREFORE BE IT RESOLVED, the City of Ukiah adopts the attached (Exhibit A)
2023 Tree Management Guidelines.
PASSED AND ADOPTED this 191 day of April, 2023, by the following roll call vote:
AYES: Councilmembers Orozco, Sher, Crane, Duenas, and Mayor Rodin
NOES: None
ABSENT: None
ABSTAIN: None
Mari Rodin, Mayor
ATTEST:
Kristine Lawler, City Clerk
Exhibit A
CITY OF UKIAH
TREE MANAGEMENT
1
MANAGEMENTTREE POLICIES • THE
• OPERATION , MAINTENANCE
URBAN
Adopted December 1,. 2010
Revised November 19, 2014
Revised March
Y -
• 2023
TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
1.0 PURPOSE STATEMENT
The purpose of this document is to provide policy guidelines for the preservation, maintenance
and enhancement of the urban forest in parks and other areas maintained by the staff and
contractors of the City of Ukiah.
If the urban forest is the sum of all woody and associated vegetation, then urban forest
management is the establishment of the care of this resource."
Urban Forestry; Planning and Managing Urban Greenscapes
2.0 DEPARTMENTS AFFECTED
2.1 Community Services Department
2.2 Public Works Department
2.3 Electric Utility Department
2.4 Planning and Community Development Department
3.0 RESPONSIBIf.ITY
The department directors shall be responsible for the implementation of these polices
and guidelines and all staff shall be trained and shall abide by these guidelines and
policies as outlined in this document. City Council shall approve any significant
amendments or changes to the Tree Management Guidelines and Policies proposed by
staff and community partners before they are adopted.
3.1 The Director of Community Services will oversee and have authority over the
implementation of this plan. The Directors of the affected departments are responsible
for the preservation, care and maintenance of trees as follows:
3.1.1 Community Services Department is responsible for all trees in public parks and
will supervise and have authority over the trimming and maintenance of all
trees
3.1.2 Public Works Department is responsible for all trees in the public right of way
and creeks. For all non-emergent trimming, prior review and approval from the
Director of Community Services or designee is required.
3.1.3 Electric Utility Department is responsible for trimming of trees to maintain
clearance from primary electric lines and facilities. For all non-emergent
trimming, prior review and approval from Community Services is required.
3.2 Planning and Community Development Department is responsible for oversight of all
landscaping plans filed by the applicant. Planning staff shall routinely consult a city
Horticulturist regarding street tree requirements.
3.3 Inter Departmental Coordination: Inter Departmental meetings will be held a minimum
of once per quarter and as necessary to facilitate communication.
3.1.4
City of Ukiah Tree Management Guidelines
TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
3.4 Partnerships: Volunteers and/or community groups are important partners to achieve
objectives for urban forestry.
4.0 TRAINING
City staff shall receive training on all procedures listed in this document, including on-site classes
and/or training prior to working on a tree trimming crew. Parks Department staff will organize
and provide training. Documentation of training will be maintained by Human Resources.
Staff who will perform tree trimming shall receive training at least once per year. City
Horticulturists and designated Parks Department staff shall obtain additional training sufficient to
maintain expertise and the ability to supervise tree-trimming staff.
Training for tree-trimming staff will include, but not be limited to: proper seasonal maintenance;
best practices for soil conditioning; proper pruning techniques; and plant identification.
5.0 POLICY GOALS
The Tree Management Guidelines focus on long-term protection of the City's trees and have been
developed for the preservation, planting, care, removal or disposition of trees, replacement
planting in parks, along streets and in other public areas.
The City of Ukiah intends that these guidelines and policies shall remain in effect, however, they
will be subject to change based upon arboricultural standards, community input and staff
recommendations. Suggestions for changes to the Guidelines must be submitted in writing to the
Director of Community Services. They will then be discussed with community partners and staff
and then submitted to the City Council for approval.
In addition to these Guidelines, Ukiah Municipal Code provides direction regarding tree care.
Municipal Code requires staff to maintain a Master Tree List. Muncipal Code #5422 states"a
Master Tree List will be developed by the City Manager and shall be on file in the Public Works
Department. The Master Tree List of the City shall remain in effect until supplanted by
subsequent approved amendments or lists." In addition to the Master Tree List, the code
requires a Master Tree Plan.
6.0 GUIDELINES FOR TREE CARE AND MAINTENANCE
Staff and contracted professionals shall utilize International Society of Arboriculture's Best
Management Practices (ISA BMP) and/or American National Standards Institute (ANSI). A
Glossary of terms is included in Section 9.0.
Specific criteria as detailed in the ISA BMP shall be established and applied to for the removal
and/or pruning of trees located in or on City property. The same criteria shall be used to
evaluate the overall public benefit of the proposed work. In all cases, safety concerns shall
receive priority. In addition,prlorlty will be given to llm/ting removal, Increasing forest
canopy,and preserving appropriate vegetation and shade on city property and
streets
6.1 Tree Preservation: Tree preservation is arguably the single most important goal in
maintaining the Urban Forest. A replacement tree requires decades of growth to achieve
similar benefits of carbon sequestration, shade, habitat, and beauty. Additionally, there
are a limited number of available sites for trees to be planted. If a root ball needs to be
3 1 City of Ukiah Tree Management Guidelines
TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
removed, the cost of replanting can he prohibitive. For all these reasons and more, every
tree should be treated as a precious resource with all efforts made to protect whenever
possible. Instances not specifically covered elsewhere in this policy include:
6.1.1 Identification of Landmark Trees: Landmark trees provide an excellent
opportunity to educate the public about the importance of trees in general and
the benefits and beauty of individual of trees. Trees receiving this designation
are considered unique because of size, species, historical significance. Refer to
the Glossary of Terms.
6.1.2 Conservation of Commemorative Tree Program;
6.1.3 Existing Trees: Staff shall change use patterns in root zones whenever practical.
For example: Vehicles parked or materials stored in the root zone shall be
subject to an education and/or enforcement campaign to reverse the damage to
the tree roots; pathways causing excessive compaction around tree roots shall
be relocated if other options are deemed insufficient. Fencing, boulders, logs
and landscaping are reasonable deterrents to reduce further damage and shall
be used whenever practical. Refer to ISA BMP Integrated Vegetation
Management.
6.1.4 Special consideration shall be given for unique situations. Every effort shall be
made to protect trees growing near underground streams.
6.1.5 Storm water Flooding and sedimentation of drainage areas shall be properly
considered before tree removal.
6.1.6 The relationship of vegetation to slope stability will be a primary consideration in
all proposed vegetation management on slopes.
6.1.7 Diseased or Infested Plants That Pose Risk to Trees: Action shall be taken to
effectively decrease risk to other trees from pests and diseases. This may
include removal and destruction of affected materials, pesticide treatments
and/or alternative cultural practices. Other qualified experts shall be consulted
as needed. Refer to ISA BMP Integrated Pest Management;City of Ukiah
Integrated Pest Management Plan.
6.1.8 Damage, Vandalism and Illegal Cutting: Action shall be taken whenever possible to
investigate and prosecute vandalism and illegal cutting of city-owned trees. Compensation for
damages shall be sought based on the appraised value in accordance with The Guide for Plant
Appraisal as authored by the Council of Tree and Landscape Appraisers.
6.2 Planting: Planning before planting can ensure that the right tree is planted in the right
location. Proper tree selection and placement prevents tree damage and costly
maintenance like trimming. Consideration of water requirements and climate and
surrounding infrastructure such as sidewalks, sewer lines and overhead/underground
power lines shall improve the chances for optimum growth potential. Refer to the Cityof
Ukiah s Master Tree List;City of Ukiah Tree Planting and Maintenance Recommendations,
ISA BMP Tree Planting;and ISA BMP Tree Support Systems
6.3 Root Environment and Tree Root Zones: Refer to the Glossary of Terms. Whenever
feasible, a pro-active program of cultural practices shall be implemented to maintain the
health and vitality of City trees. Refer to ISA BMP Tree and Shrub Fertilization.
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TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
6.3.1 Trees in parks,fields and all other areas both developed and undeveloped:
6.3.1.1 Soil Compaction: Every effort shall be made to avoid the compaction of
soil in root zones and to encourage penetration of rainfall deep into the
soil.
6.3.1.2 Mulch: Organic material such as mulch and leaves shall not be removed
under the tree canopy.
6.3.1.3 Crews shall, when feasible and practical, establish and maintain the
areas under tree canopies free of turf and invasive plant species. The
use of native grasses and plants are encouraged, as are plants
associated with the trees above them. Special consideration shalt be
given to oak trees and the use of drought tolerant plants near them.
6.3.1.4 Parking: Vehicles and equipment should be parked on paved areas,
streets and parking lots.
6.3.1.5 Pavement: The use of pavement within park and garden areas shall be
limited as much as possible, especially under tree canopies. Whenever
pavement is necessary the use of permeable materials is preferred.
Remove the affected curb and damaged or cracked pavement due to
root uplift when feasible. Level the section with mulch, chips, sand, or
gravel rather than replacing the area with impervious materials.
6.3.1.6 Leaf Blowers: The use of leaf blowers is discouraged. Leaf blowers
should not be used to blow debris with native soil. Battery powered leaf
blowers are preferred.
6.3.1.7 Pesticides: The use of pesticides is discouraged. Please refer to the City
Integrated Pest Management policy.
6.3.1.8 Stakes: In the unusual situation when stakes are needed they should be
driven in outside the root ball. ISA BMP Tree Support Systems shall be
followed.
6.4 Construction around Trees: Protection devices shall be installed to protect the tree
and root zones when near or within construction zones. The root system extends at
least to the edge of the canopy or drip line of the tree with most of the fine feeder roots
active in the top few inches of the soil. These roots need air to stay healthy in order to
provide the tree with nutrients and water. This root zone shall be protected from
compaction, changes in soil grade, digging, or other disturbances.
Protective fencing and warning signage will be required around the root zone. All tree
protection devices shall be visible, well-anchored, and approved in the field by the
Supervisor or designee prior to clearing, grading, or beginning of construction and shall
remain in place and maintained until the project is completed. Refer to ISA BMP
Managing Trees During Construction and ANSI Construction Management and Standard.
City of Ukiah Tree Management Guidelines
TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
6.5 Consultation with a Qualified Arboricultural Professional: When planning and
designing a public improvement project the City shall seek the appropriate qualified
expert when the project involves or is near a tree or trees.
6.6 Pruning Standards:The effects of Climate Change place an ever-increasing value on
shade. Therefore, pruning shall be performed with a minimum removal of plant matter.
The goal or of pruning shall be to preserve the maximum amount of shade while allowing
for the pruning goal. The latest pruning standards established by the International
Society of Arboriculture shall be used in the maintenance of trees and are detailed in the
ISA Best Maintenance Practice booklets. Refer to ISA BMP Tree Pruning, ISA BMP Utility
Pruning of Trees Such maintenance will include:
6.6.1 General pruning for clearance to prevent injuries and to facilitate maintenance
and vehicle clearance.
6.6.2 Pruning dead, dying, and diseased sections to improve the health and
appearance of the tree and to prevent accidents.
6.6.3 Pruning for clearance around lighting and overhead lines.
6.6.4 Pruning back for authorized passage on service roads, walkways
and paths.
6.6.5 Pruning at the request of a private property owner shall only occur with prior
approval of the Director of Community Services. Such requests do not obligate
the City of Ukiah to prune trees, shrubs, and/or vegetation and should only be
approved if there is an overriding and substantial benefit to the City
It is the responsibility of the business owner to plan their signage so that visibility is not
affected by growing trees.
6.6.6 Pruning in park areas identified as places of illegal or inappropriate activity in
order to improve general visibility, safety, and increased police surveillance.
6.7 Birds and Nesting: Except in emergencies nesting birds or nests shall not be disturbed
or harassed by pruning or removal activities.To avoid nesting season, pruning,
trimming,and tree removal shall only occur between September 1st and
March 31st unless a qualified biologist,certified arborist. Or the Director of
Community Services has assessed and approved the activity. Fish and Game
Code 3503: "It is unlawful to take, possess, or needlessly destroy the nest or eggs of any
bird..." The Migratory Birds Treaty Act of 1918 also applies.
6.8 Unnecessary Wounding: Prior to trimming a City Horticulturist will review tree
trimming plans and consider the health and timing of trimming to ensure the tree will not
be unnecessarily wounded. Because"topping"of trees can cause permanent damage by
promoting decay, as well as unnatural, dense and weak branching structure, topping
shall not be practiced or permitted except under special circumstances. Not only can a
tree sustain wounds to the branches or top, it can also sustain wounds to the trunk.
Therefore, these policies shall reinforce the protection of the trunk area from wounds
associated with a lawn mower or other equipment.
6.9 Hazardous Tree Management: Public health, safety and general welfare will be
maintained through the use of generally accepted professional practices of evaluation
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TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
and treatment to reduce risks to people and property from hazardous trees. Attention to
proper selection, planting and maintenance of new trees shall also be pursued to achieve
long-term risk reduction. Emergency corrective action can be undertaken without
horticulturist review. However, crews who remove or trim a tree under emergency
conditions shall notify and provide an after-action review to the horticulturist or Director
of Community Services.
6.9.1 The City of Ukiah shall assess and manage the risk of tree failure within the
limits of available fiscal and human resources. Priority shall be given to locations
and situations with high probability of failure and high potential damage or injury
that may result.
6.9.2 Notwithstanding an immediate hazard to safety and/or property, the City shall
utilize a written tree risk assessment methodology established by the ISA ISA
Basic Tree Risk Assessment Form or equivalent) to evaluate the likelihood that
part or all of a tree will fail and cause damage. The components of the
assessment shall include tree health, species profile, site factors, history of
failures,tree defects/conditions, target assessment, risk categorization,
mitigation options and recommend intervals when warranted.
6.9.3 Corrective action for high hazard rated trees shall be reasonable and prudent and
may include:
• Moving any at-risk structures, equipment, fixtures or recreational sites;
• Correction of the defect by pruning, cabling and bracing, or tree removal;
• Closure of the area
7.0 Tree Removal: The City shall provide 72 hours of advance notice of the intended tree
or trees that shall be removed by posting a sign at the work site when feasible. The sign
shall contain the reason for the removal of the tree and the appropriate city department's
telephone number that the public may contact for further information. Tree removal will
include:
7.0.1 Trees that pose substantial risk or hazard to the public, adjacent properties or to
public facilities.
7.0.2 Dead, dying or diseased trees.
7.0.3 Removal from properties being improved or developed under an approved
design, however, prior consideration to retention shall be given whenever
possible. Preference is to retain existing healthy trees when designing any
development rather than attempting mitigation.
7.0.4 Trees that block trails, drains or otherwise obstruct the use and function of
infrastructure elements.
7.0.5 Trees on sites that were over planted by design or are crowded from natural
competition. As the landscape grows,the Supervisor with consultation with a
qualified expert shall selectively remove trees on a site to maintain spacing for
optimal tree growth and function.
7.0.6 Removal requested by a private property owner shall only occur with prior
written approval of the Director of Community Services. Such requests do not
7 City of Ukiah Tree Management Guidelines
TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
obligate the City of Ukiah to remove or allow removal of any trees, shrubs,
and/or vegetation and should only be approved if there is an overriding and
substantial benefit to the City
7.0.7 Consideration shall be given for providing trunk and limbs for service projects
such as constructing benches and picnic tables. The use of wood chips for
mulching material around trees and vegetation in the parks is encouraged.
7.0.8 Any person aggrieved or impacted by a decision to remove a tree may appeal
the decision during the noticing period. A letter stating the reason(s)for the
appeal must be submitted to the City Clerk's Office. An appeal automatically
stops any action or non-action on the tree until the responsible Department
Director has an opportunity to review and consider the appeal. The Director's
decision on and appeal is the final administrative determination.
The Director's final determination may be appealed to the City Council. The
appeal must be filed with the City Clerk's Office with 10 days of the Director's
determination and must be accompanied by supporting documentation from a
qualified arboricultural professional using the same tree risk assessment
methodology established by the ISA as detailed on Section 6.9.2.
7.1 Tree Replacement: At least one tree shall be planted for every tree that is removed
from City property. Replacement tree species shall be selected so that overall mature
canopy volume will be maintained or increased. It is preferable to plant the replacement
tree in close proximity to the original tree's location. The replacement tree may be
located elsewhere, if local conditions contributed to the previous tree's failure (See
Section 6.2). New locations should be found on the same site or in the same
neighborhood at a location of similar or greater value. Preference shall be given for
planting native trees whenever feasible.
7.2 Replacement Plantings The City shall undertake the task of replacement plantings to
mitigate the effects of vegetation removal and to reestablish the landscape and increase
overall mature forest canopy. The City shall determine the species of tree to be planted
on City property and the planting location. Every effort shall be made to select a species
compatible with the existing tree plantings on the street, (the neighborhood identity), the
maturity of the trees, space available for growth, the presence of underground and
overhead utility lines, utility poles, streetlights, driveway approaches and fire hydrants.
7.3 Phasing: The City of Ukiah when appropriate shall consider a phased approach to
vegetation management to reduce potential short-term negative aesthetic and/or wildlife
habitat impacts (associated with such actions).
7.4 Wildlife and Habitat: Trees and forested areas are recognized as important habitat for
native wildlife and providing vital wildlife corridors. Trees, undeveloped landscapes and
creeks will be managed to optimize them for wildlife habitat. Refer to the City of Uldah
Creeks Maintenance Policies and Procedures.
8.0 SUMMARY
These guidelines are set in place to enhance the urban forest within the City of Ukiah. As
industry standards change in regard to tree care,this document shall remain flexible to
incorporate needed changes.
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TREE MANAGEMENT GUIDELINES AND POLICIES
FOR THE OPERATION AND MAINTENANCE OF CITY PROPERTY
9.0 GLOSSARY OF TERMS
For additional definitions, refer to the International Society of Arboriculture Best Management
Practices
9.1 Commemorative Program Tree Program provides an opportunity fo the
public in celebrating an event of memorializing a loved one by the
planting of a young tree or tree while improving the appearance and
canopy of City Parks.A tree or grove is purchased from the City of
Ukiah to honor or memorialize an individual or group.Such tree(s) are
identified and recorded by the City of Ukiah with the name of the
species,dedicated individual or group and the name of the donor.
9.2 Developed landscape is property that has been graded and/or planted, and
contains plantings that are distinct from typical native forest. These active
and/or passive recreational landscape areas are routinely maintained by park
staff for public use. Developed landscapes shall include, but are not limited to:
lawns, athletic fields, boulevards, golf courses including pitch and putt, lawn
bowling greens, play areas, squares, places, triangles, and swimming beaches.
9.3 Hazardous Tree is a tree that can be predicted to fail and has a high
probability of striking people or property causing injury or damage.
9.4 Invasive exotic vegetation consists of species of plants that are not native to
our region and exhibit aggressive growth to the exclusion of native or planted
landscapes and wildlife.
9.5 Landmark Trees. Education is the primary goal of the landmark tree program.
Landmark trees are individual trees that have been designated as unique
because of size, historical/commemorative association, and distinct form, as an
outstanding specimen or are important for wildlife habit. Landmark trees are
provided extra protection via the Ukiah Municipal Code. These trees will be used
as an educational tool highlighting the benefits of maintaining an urban forest.
9.6 Protected Trees—Ukiah Municipal Code $9229.3 identifies trees that are
protected within the boundaries of this code. Removal of a protected tree
requires approval of a major exception.
9.6 Topping is the removal of the terminal shoot of a tree to a stub or lateral
branch that is not sufficiently large enough to assume a terminal role or cannot
be expected to achieve wound closure to inhibit decay.
9.7 Tree Failure is the breaking and falling of a tree or any substantial part of a
tree. This does not include falling leaves or fruit.
9.8 Tree Root Zone is the area from the trunk to the drip line or the edge of the
unpruned canopy around a mature, uninjured tree or the anticipated root zone of
a young tree.
9.9 Qualified Arboricultural Professional is a tree care professional with a
minimum of two years experience in the evaluation and care of trees in
combination with a professional license or certification that measures minimum
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TREE MANAGEMENT GUIDELINES AND POLICIES
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competency in relevant subjects, including protection of public health, safety and
welfare. Acceptable titles include Certified Arborist, Registered Consulting
Arborist, Registered Professional Forester,and Landscape Architect.
9.9 Undeveloped Landscape is properly that contains native or volunteer(self-
propagated) plants and is not intended for recreational use except along
designated trails. Undeveloped landscapes are(usually) not as intensively
maintained as developed landscapes.
10.0 ADDITIONAL RESOURCES
Additional City and other tree-related documents that incorporate tree guidelines are available
electronically through the Intranet. The Department Directors shall provide the The International
Society of Arboficulture Best Management Practice booklets, American National Standards
Institute related documents, and Mendocino County ReLeaf materials to their employees.
These documents are:
• Municipal Code Chapter 5, Article 2, Number 5420 Street Tree Policy, Purpose and Intent
(Ordinance 869, adopted 1987)
• Community Forest Management Plan
• Master Tree List
• Integrated Pest Management Plan, Community Service Department
• Creek Maintenance Policies &Procedures
• Ukiah 2040 General Plan; Environment and Sustainability Element(2022)
• International Society of Arboriculture Best Management Practices (ISA BMP): Managing
Trees During Construction; Tree Pruning,Integrated Pest Management; Tree Support
Systems; Utility Pruning of Trees; Tree and Shrub Fertilization; Tree Planting, Tree
Inventories;Integrated Vegetation Management
• American National Standards Institute (ANSI): Construction Management Standards
• Mendocino County ReLeaf Tree Care Guide
• Hillside Ordinance 9135
11.0 REFERENCES
Urban Forestry,; Planning and Managing Urban Greenspaces 3rd Edition
Robert W Miller, Richard] Hauer
Les P. Werner; W Saveland Press Inc, 2015
Oaks in the Urban Landscape; Selection, Care, Preservation
Laurence R Costello, Bruce W. Hagen; Katherine S]ones
University of California Natural Resources Publication 3518; 2011
Willits Urban Forest Management Plan
Technical Assessment Prepared by Dudek 38 N Marengo Pasadena, CA 91101
2021
Municipal Code Division 6 Safety; Chapter 5,Article 2, Number 5420-29 Street Tree Policy,
Purpose and Intent(Ordinance 869, adopted 1987)
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Municipal Code Division 9 Planning and Development; Chapter 2 Zoning; Article 18 zoning;
#9229Tree Preservation and Planting Requirements. 9229.1 —9229.12 (Ord. 1139, §2 (Exh.A.
10.070),adopted 2012)
City of Ukiah Tree Management Guidelines