HomeMy WebLinkAboutArborist ReportArbor Care, Inc.
arboricultural consulting & plant health care
info@ArborCareInc.net
DATE: February 29, 2020
TO: City of Arcadia Planning Division
240 W. Huntington Drive, P.O. Box 60021
Arcadia, CA 91007
FROM: Michael Crane
Arbor Care, Inc.
Project’s Arborist of Record
SUBJECT: 622 E. Longden: Determination of the protective status of a White
Alder tree (Alnus rhombifolia).
Refer to original Protected Tree Report dated March 2017
Photo of the subject White Alder (Alnus rhombifolia.) taken in March 2017.
The White Alder tree located in the back yard is not protected according to the city’s
collective tree ordinance (Ordinances #1962, #2323, #2338). The tree was
appropriately omitted from all analysis and findings for encroachments and
preservation in the tree report because of its non-protected status; nevertheless, the
tree was planned to be retained at that time in the planning process. It is now
planned for removal and its non-protected status has not changed.
I have attached a copy of the city’s current collective tree ordinance, which lists
Alnus rhombifolia (White Alder) as one of the several unprotected trees. Please
email me with any questions. info@arborcareinc.net
Sincerely,
Michael Crane
ISA Board Certified Master Arborist WE-6643-B
ASCA Registered Consulting Arborist #440
City of Arcadia Tree Ordinance
Oaks, Sycamore, and many other tree species are Protected under the various tree
ordinances. Here is a summary of the tree protection laws.
On January 21, 1992 the City Council adopted Ordinance No. 1962 recognizing oak trees as significant
aesthetic and ecological resources and establishing criteria for the preservation of oak trees. The
regulations (Chapter 7 of the Arcadia Municipal Code) provide that the following oak trees shall not be
removed, relocated, damaged, or have their protected zones encroached upon unless an Oak Tree Permit
is granted:
• Engelmann Oaks (Quercus engelmannii) or Coast Live Oak, California Live Oak (Quercus
agrifolia) which have a trunk diameter larger than four (4) inches measured at a point four and
one half (4 ½) feet above the crown root, or, two (2) or more trunks measuring three (3) inches
each or greater in diameter, measured at a point four and one half (4 ½) feet above the crown
root.
• Any other living oak tree with a trunk diameter larger than twelve (12) inches measured at a
point four and one half (4 ½) feet above the crown root, or, two (2) or more trunks measuring
ten (10) inches each or greater in diameter measured at a point four and one half (4 ½) feet
above the crown root.
On March 3, 2015, the City Council adopted Ordinance No. 2323 amending the code to add Sycamore
trees to the list of City's Tree Preservation Regulations. The protected trees are Oak and Sycamore
trees. Protected Sycamore trees are defined as:
• Plantanus racemosa (Sycamore) with a trunk diameter larger than six (6) inches measured
at a point four and one-half (4½) feet above the root crown, or two (2) or more trunks
measuring four (4) inches each or greater in diameter, measured at a point four and one-
half (4½) feet above the root crown.
On August 2, 2016, The City Council adopted Ordinance No. 2338 to add additional protected trees
and unprotected trees to the City’s tree preservation regulations. In September, the City began
protecting mature trees that are located within a required front, side, street-side, or rear yard
setback area that are either larger than 12 inches in diameter or two or more trunks larger than 10
inches in diameter if there are multiple trunks.
Below is a list of the unprotected trees:
1. Fruit trees
2. Fraxinus uhdei (Shamel Ash)
3. Ficuses – Exception: Ficus macrophylla (Moreton Bay Fig)
4. Eucalyptus
5. Ailanthus altissima (Tree of Heaven)
6. Arecaceae (Palm Tree)
7. Schinus terebinthifolius (Brazilian Pepper)
8. Ceratonia siliqua (Carob)
9. Betula pendula (European White Birch)
10. Grevillea robusta (Silk Oak)
11. Morus (Mulberry)
12. Acer saccharinum (Silver Maple)
13. Cupressus sempervirens (Italian cypress)
14. Populus Fremontii (Western Cottonwood)
15. Alnus rhombifolia (White Alder)
16. Populus trichocarpa (Black Cottonwood)
17. Populus ‘Highland’ hybrid
18. Salix lasiolepis (Arroyo Willow)
19. Liquidambars (Sweet Gum)