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Arborist Report TR-2019-040Community Development Department Planning Division — Cupertino CUPERTINO APPROVED Case # OctoWI3z M-040 Arbor ell_ professional tree management City 6pI&f*'lN1bmber(s) 10300 Torre Avenue Approva l BodMPji #,cTaJi a% 95014 Approva I Date 01 /06/20 e: Live Tree removals at 10900 Nof! Tantau Avenue, Cupertino, CA Signature Lauren Ninkovich To whonitsffmyieoncern, This letter intends to address two (2) live tree removals located along the Forge Drive frontage landscaping on the 10900 North Tantau Avenue property in Cupertino, California. Please see Exhibit 1.1 for the relative locations of the subject trees indicated as white/red dots, and for the locations of the replacement trees. The trees are live trees but will need to be removed and replaced. Metric for the trees are as follows: Number S ecies Trunk Diameter Condition 1 Privet 10" x6 Fair 2 Ash 26" Fair The privet is a multi -stemmed individual and the ash is a single trunk individual; both are in fair condition based on numerous defects. There is a walkway planned to be installed within several feet from the subject trees. Due to the close proximity of the planned excavation for the walkway combined with the declined condition of having numerous defects, I recommend these trees be removed and replaced. My concern is that the trees will become destabilized due to the planned excavation for the sidewalk. The property is a commercial space that has an abundance of employees occupying the area at any given time, resulting in an elevated target value. With roots cut in close proximity to the trunk, the risk of failure increases. Damage to property or personal injury may occur in the event of failure. I think these trees should be removed and replaced in concert with the proposed walkway replacement. The trees are considered protected pursuant to Section 14.18.035 of the City of Cupertino's Municipal Code and requires a permit from the City's Planning Department prior to their removal. To mitigate the removals, we are planning to replace with three (3) 24-inch box Quercus agrifolia (coast live oak) or equivalent (species determined by the Apple Arborist) per ordinance mitigation requirements. The replacement trees will be selected for favorable characteristics whenever possible such as drought tolerance, long lifespan, structurally sound, deep-rooted, Cupertino climate -appropriate, onsite location -appropriate, shading value, pest resistance and overall enhanced aesthetics. The new trees will be selected by an Apple arborist to ensure optimal structure, health, and reduce the risk of girdling roots, and then trained from an early age as needed to optimize branching structure which will extend the aesthetically and structurally sound lifespan of the trees. Please review this information and contact me with any questions or concerns regarding the information provided in this letter. Sincerely, 2337 AMERICAN AVE, HAYWARD, CA 94545 OFFICE: (888) 969-8733 1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063 DIRECT: (925) 518-2028 SOAKLEY@ARBORWELL.COM Community Development Department Planning Division — Cupertino CUPERTINO APPROVED Case # ,�!R- 2019-040 Application Number(s) Samuel Oakley Approva I Bod JCW aster Arborist, WE-9474B Approval Date SCt i -ed Consulting Arborist #556 Signature Lauren Ninkovich Case Manager 2337 AMERICAN AVE, HAYWARD, CA 94545 1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063 Arbor ell_ professional tree management OFFICE: (888) 969-8733 DIRECT: (925) 518-2028 SOAKLEY@ARBORWELL.COM Community Development Department Planning Division — Cupertino CUPERTINO Exhibit� APPROVED Case # The lar lugth��li�� 'trees are sh-Aln with white/red dots (top image) greer>fg�-RleJi'�ttU1 I(k! Rbrb Image). Approval Body: Director / Staff Approval I Signature Arbor ell_ professional tree management The replacement trees are shown with 2337 AMERICAN AVE, HAYWARD, CA 94545 OFFICE: (888) 969-8733 1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063 DIRECT: (925) 518-2028 SOAKLEY@ARBORWELL.COM Community Development Department Planning Division — Cupertino CUPERTINO APPROVED ExbibiL&§D-rii>;lglmage: Case# An im? �11� UU44CC1J Application Number(s) Approva I I Approva I I Signature 2337 AMERICAN AVE, HAYWARD, CA 94545 1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063 Arbor ell_ professional tree management OFFICE: (888) 969-8733 DIRECT: (925) 518-2028 SOAKLEY@ARBORWELL.COM Community Development Department Planning Division — Cupertino CUPERTINO APPROVED Case # EAn im l�&§D-rii>;lglmage: Application Nb umUerr(CCs)) Approva I I Approva I I Signature 2337 AMERICAN AVE, HAYWARD, CA 94545 1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063 Arbor ell. professional tree management OFFICE: (888) 969-8733 DIRECT: (925) 518-2028 SOAKLEY@ARBORWELL.COM Community Development Department Planning Division — Cupertino CUPERTINO APPROVED Exhlbl o I Image: Case # An ima f��a�;n�2�,� JQgS, Application Number(s) A rbor ell. professional tree management CP N .18 146.98 147J5 1471 P7, `TCC • . Approva l Body. Dir+ ctcw—/-Stq{� -- _- .46.99 , w46.sn a . o7 Tc — — — 147 rc —. - 47.03 TC.� - Approval Date �y Signature L°aur.. u K. — 746.74---148.91-- P46.93------ —146.95--146.97--- Case Manager TC 146`76 E TC 146.96 EX, EXISTING 743 l47 90 re. „ I 71 147047. 85- '.74 TC w y 110 3.17 r€la r9 .k - .c •a•• -2" DECti '❑ o 147.93 5 31 � a — 8 7..49 TC_ MATCH C � 6-PRONG'T o' 0 148 467 r, 147.31 I �-1 6-10" DEC �I 4&64 7C', '� ,- r /. MATCH 20OF 4 WIDE SW WITH �_ TC 148.3� FLEXI-PAVE AROUND EX INSTALL WHEEL LARGE TREE PER DETAILS STOPS :ANDERING SIDEWALK LAYOUT 2337 AMERICAN AVE, HAYWARD, CA 94545 OFFICE: (888) 969-8733 1993 EAST BAYSHORE ROAD, REDWOOD CITY, CA 94063 DIRECT: (925) 518-2028 SOAKLEY@ARBORWELL.COM