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arborist_report_10569SanLeandroAve Community Development Departfnenf Planning Division — Cupertino CUPERTINO APPROVED � Case# TR-2023-038 ■ Application Number(s) Tree Servit Approval Body: Director/ Staff Approva I Date,09/2�2{ 3___Jr yr± cr: Signature 4iiiagµ Wa4e Property:ea5°6rSan Leandro Ave, Cupertino, CA 95014 Name: Daniel Kaplanek Qualifications: Certified Arborist WE-11351A Date of inspection April 26,2023 Phone 408-652-8062 Tree inspection checklist Location: Backyard Tree number: 1 left back corner of Back Yard (solo specimen) home Quercus agrifolia California Live Oak or Coast Live Oak Coast Live Oak is a highly variable,often evergreen oak tree,a type of live oak, native to the California Floristic Province. It may be shrubby,depending on age and growing location,but is generally a medium-sized tree. It grows west of the Sierra Nevada Mountain range from Mendocino County, California,south to northern Baja California in Mexico. It is classified in the red oak section of oaks. Coast live oak typically has a much-branched trunk and reaches a mature height of Genus,species: 10-25 meters (33-82 feet). Some specimens may attain an age exceeding 1,000 years. Examples of this include the Grand Oak of Cherry Valley,California,the Encino Oak Tree,which died in the 1990s and the Pechanga Great Oak. The trunk, particularly for older individuals, may be highly contorted, massive and gnarled. The crown is broadly rounded and dense,especially when aged 20 to 70 years; in later life the trunk and branches are more well defined and the leaf density lower. The oldest specimens might exceed 6 m (20 ft) in trunk circumference and 30 m (100 ft) in height. The le es are dark green,oval,often convex in shape,2-7 centimeters (3/4-2+3/4 Community Devela mentuepartment inches) long and 1-4 cm (1/2-1+1/2 in) broad;the leaf margin is spiny-toothed tanning Division —.Cu ertino (spinose),with sharp thistly fibers that extend from the lateral leaf veins. The outer CUPERTINO APPR VED Case # TR-202 -la ers of leaves are designed for maximum solar absorption,containing two to 38 Application Nu ber{s) nthetic cells. Approval Body: Director f StJiffese outer leaves are deemed to be small in size to more efficiently re-radiate the Approval Dale 09/22/23 heat gained from solar capture. Shaded leaves are generally broader and thinner, Signature Catherine Taro ehaving only a single layer of photosynthetic cells. The convex leaf shape may be case Ma aWeful for interior leaves which depend on capturing reflected light scattered in random directions from the outer canopy. The flowers are produced in early-to-mid spring;the male flowers are pendulous catkins 5-10 cm (2-4 in) long,the female flowers inconspicuous, less than 0.5 cm (1/4 in) long,with 1-3 clustered together. The fruit is a slender reddish brown acorn 2-3.5 cm (3/4-1+1/2 in) long and 1-1.5 cm (3/8-5/8 in) broad,with the basal quarter enclosed in a cupule; unusually for a red oak,the acorns mature about 7-8 months after pollination (most red oak acorns take 18 months to mature). DBH: Co-dominant 30 in+ 15 in= 49 in Height and 46 ft x 41 ft radial spread Site factors and history Inspections Observations Childrens play deck directly below tree and intertwined Intensity of use between protruding base of both leaders of tree and deck/play structure. Soil condition compaction,paving Flat, compacted,pavers,concrete surroundings,approximation 4ft from left corner of detached living structure of home. Exposure High Previous mistreatments None seen Construction injury None seen Incorrect planting(girdling etc...) Tree overgrown in terms of its placement as it is too close Com nunity Development Departrre0paved walkway and corner of detached home (< 4 ft). In :Ila n n i n g Division — Cupertino addition, main larger leader growing at 45-degree angle C V P E RT I N O APPROVED towards structure causing structural damage and lifting to Case # TR-2023-038 the walkway directly adjacent and between tree and Application Number(s) ached home. Angle of tree growth a further liability to safety to nearby structure in terms of limb failure as tree Approval Bo y: Director/ Staff competes for light from backyard neighbors'horticulture. Approval Date 09/22/23 Signature CdMM v&QefgA vent: Discolored or browning leaves and dead branches on the top of the tree are iti t3 ,yt some type o stress —typically water stress due to drought or a stem injury. Co-dominant tree with larger leader growing at a 45-degree angle causing an encumbrance of walkway and with the tree planted above grade (on retainer wall 24" high) create a less stable environment for the tree safety along with tree located too close to walkway and particularly close (< 4 ft) detached structure (en suite) of home. Structure being affected by tree along with liability from tree due to play structure at base of tree. Overall tree condition: Tree too crowded for location. Lack of light forces tree to grow at 45 degrees for main leader causing liability for failure since planted above grade. Discolored or browning leaves and dead branches on the top of the tree are indicators of poor performing uptake to tree. Lack of water also contributes to difficult delivery of H2o up through cambium layer to facilitate needed water to starving limbs. As a result, customer has experienced limb failure and concerned about the well being and safety of his children in the back yard Limb attachment: smaller limbs have had failure Branch attachment: confined area of tree location not suitable for continued growth with very limited room for healthy growth and angled growth pattern due to competing vegetation for light. Crown: Heavy over roof, crowding area with structure right next to it,limited space for tree to thrive Root system: Imbedded and planted on 24 inch uplift with retainer wall at edge of tree base. Sidewalk inches from tree base and detached home structure too close at less than 4 feet from building corner. Stem: Adequate Woody structure: No obvious signs of open cankers or wounds however tree has outgrown its location Canopy structure: In a heavy foliage condition. Branch attachment showing signs of dead wooding associated with heavy coverage. Conclusion: Community Development Department p'T WM� ibiiVi�Ib adequate for its location, however, at its current stage in life, CUPERTINO tree is to%-ft�6Wbe location in the sense that it is and will affect the hardscape and home Case# struct> (��L .638 App Icat on Nurn erV s main leader growing at a 45 degree angle as it reaches for light from a confined area (next to back fence, next to home,has a play structure Approval BodgndDhraatbddaStbff competing for limited light exposure. Approva I DatThis OW22/fit not only is the tree too close to structure,it is even more of a liability as it Signature awat as—an blocking the sideway and affecting the integrity of the structures Ouri a ( &Manager Additionally, tree has experienced limb failure and homeowner is fearful of their health and safety with these failures. Backyard is standard residential 6000sgft lot size so avoiding limb failure is not an option. In conclusion, tree would need to be removed due to these factors: Too close to structure (<4ft), sitting higher than grade level (-24"higher) and at edge of retainer wall, tree growing at 45deg angle towards structure and blocking walkway,and limb failure becoming an issue for safety. 72 Signature � f # 1 #"� xx e k h NV r Vr y rt i q Com `} vF ZAP7� Planning Division, —� ='C ll Illfl PP• Case # Signature AU G^16�[f�Vo���ttbc�vu i,�Ja�a�rlb�u�; I �r - ' t � 4 I ". AL ��� • 0�;�til IO�J/ �1 "/ � ���Il(1fC.I�110 ' �_ � I(�ll�i�Ilr �,�l:... �1�6 k�b"' �. �r a �, t .�' 4�r'"�fill�Pih, Ir u��u' i.���ini 60 n� Y o 0In!I7tlto 21 ir � •• • � �� .r `fix -;� a¢ �r � '+� �• �a< °4 A�YY e'Y I y Yhge _ _ y \ • lull;lllf'y�C f;7-nvm�;llro If ! P11' kljl)Illl a�IIVI1511U11 • 'III �)�: a "mC,J)� �/+:i(�1[ra.JoQ�aOC�'f�•J>� pill "c`� F " � � • & i.' .�r ' M• C� Y � - �Gam. ��F _ � r •'`Y -'�,+' 'w e �gC s tp. YT 1 yy I 1A .n lk y. J • �I. I I IIIJj��l v3 w` i l`[I I10 � .' • f+-A - a�,. J lk,, 3l�J-�✓-.,_ S FY'sS� y, P 3L i. � _ 'fit,- jj � •• • �• • � 1 '�. +. 'q°1r f$M'0.K a �'' �#. 4 ,- ��::;J 4�f �" - s s Ilk M a pip Commu evel ment Depa t f t Plan Divi -CupertinIF . . �. � CVPERTINO APPROy.#. '' Case # I F<-2u 1:1)1)1icatin11 111)PI(S) Approval Bod Directo ff Approva I Dat ' Signature them it-, Tar r �• 4 . 7 ' 6.