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Approved Arborist ReportCommunity Development Department Planning Division —Cupertino CUPERTINO APPROVED Case # TR-2020-012 Submi artl'ev�'ew r(s) Approval Bod?, :-p r6a;8p?:S�gFlle Park Monterey Pine Approval DaterojegiJfjb�103-1 ProjectLocation: Cupertino, Ca Signature Erick Serrano 11 FOOD ARCHITECTURE N,s4�sv�*�n0,nf�+a1 ma Kr Case Manager SUBJECT: ARBORIST REPORT FOR PROPERTY AT 1 Apple Park Way, Cupertino, CA 95014 Wood Architecture has been retained to prepare an arborist letter for the commercial property at 1 Apple Park Way in Cupertino, CA. This letter documents the necessity to remove one (1) Pinus radiata (Monterey Pine) to reduce tree -related safety risks. The aforementioned tree was inspected on March 2, 2020. The inspection revealed substantial decay at the root crown and lower trunk area. The tree is large and has multiple targets in the fall area. The Pine tree is 50 inches in diameter at 4.5 feet above grade, 65 feet in height and 45 feet wide. It is located along the Tantau frontage of Apple Park approximately 300 feet north of the Apple Park Tantau Reception Center between the sidewalk and the security fence. The tree is alive but exhibits poor vitality. There is significant decay on the south side of the tree's root crown and lower trunk that extends more than half way around the tree. The decay is concentrated on the compression side of the tree. The cambium is in a large area on the lower trunk and the bark is sloughing off. Pinus radiata are poor compartmentalizers and the decay will continue to spread fairly rapidly until the structure of the wood is compromised to the point that a catastrophic failure will occur. There is no way to predict exactly when the failure will occur however based on the inspection findings it is possible that the tree could fail in the very near future. Monterey pines are currently the second most commonly reported species in the California Tree Failure Report Program database as the occurrence of failures are high. It is recommended that this tree be removed without hesitation. Replacements We understand the Monterey Pine is considered as a protected tree pursuant to Section 14.18.035 of the City of Cupertino's Municipal Code. However, it is lawful to remove a failing tree pursuant to Section 14.18 of the City of Cupertino's Municipal Code and ask for permission to proceed with the removal and replacement. To mitigate the removal, we propose to replace it with a 36-inch box Quercus spp. (species to be determined by the Apple Arborist) in the same location as the removal and evenly spaced for maturity. The new tree will be selected by an Apple arborist to ensure optimal Community Development Department Planning Division — Cupertino CUPERTINO APPROVED Case # TR-2020-012 structt,a WenaTK aM no girdling roots. Please review this information and contact me with Approva I BodPMNV66W StSlqncems regarding the information provided in this letter. Approva I Date 03/19/20 Sincerely, Signature Erick Serrano Case Manager ;o Tyson Carroll PLA #5803, LEED AP, Certified Arborist WE10179A, TRAQ Certified 1512 W. Mineral King Ave. Visalia, Ca 93291 559.786.9600 CUPERTIN, Case # Appro, Appro, Signat Pinus radiata (Monterey Pine) 1 Apple Park Way, Cupertino, CA 95014 Pinus radiata (Monterey Pine) Tag numbers 1504 and 3308 Decayed structural root Structural root with dead cambium and decay. CUPERTINC Case # Appro� Approx, SignatL Community Development Department Planning Division — Cupertino Structural root with dead cambium and decay. Tree removal map Truck with dead cambium, the bark sloughing off and early decay. CUPERTINO Case # Appro� Approx, SignatL Community Development Department Planning Division — Cupertino Tree replacement map