ITEM 23 ATTACHMENT 6 - Project Plans

Tree Report. April 2023. HortScience, Inc. Merritt Property, The Foothill Boulevard Holding Company. Page 27 HortScience│Bartlett Consulting ● Divisions of The F.A. Bartlett Tree Expert Company Tree Preservation Guidelines The following are recommendations for design and construction phases that will assist in successful tree preservation. Recommendations for tree preservation and removal must be considered preliminary. Recommendations may be revised as plans are more fully developed. Design recommendations 1. Locate the trunk of all trees recommended for preservation that are located within 25-feet of the edge of grading and/or utility installation. Include trunk locations and tree tag numbers on all plans. 2. Establish a TREE PROTECTION ZONE around each tree to be preserved. For design purposes, the TREE PROTECTION ZONE shall be 3-feet behind the edge of grading. The design guideline for specimen valley oaks shall be the dripline. No grading, excavation, construction or storage of materials shall occur within that zone. As more detailed plans become available, the TREE PROTECTION ZONE may be revised. 3. Install protection around all trees to be preserved. No entry is permitted into a tree protection zone without permission of the project superintendent. 4. Use only herbicides safe for use around trees and labeled for that use, even below pavement. Pre-construction and demolition treatments and recommendations 1. The demolition contractor shall meet with the Consulting Arborist before beginning work to discuss work procedures and tree protection. 2. Stake the edge of grading prior to demolition and site clearing, particularly related to the improvements along Foothill Road. Final determination of trees to be removed and preserved can be made based on this staking. 3. Trees to be preserved may require pruning to provide adequate clearance from construction activities. All pruning shall be performed by a licensed State of California contractor possessing the C61 classification license and the D49 specification. All pruning shall reflect information contained in the latest editions of the American National Standards Institute Z133 and A300 standards. 4. Maintain tree protective fencing at the edge of the TREE PROTECTION ZONE. No grading, construction, installation or other activity is permitted within this area. Tree protection during construction 1. Prior to beginning work, the contractors working in the vicinity of trees to be preserved are required to meet with the Consulting Arborist at the site to review all work procedures, access routes, storage areas and tree protection measures. 2. Any grading, construction, demolition or other work that is expected to encounter tree roots should be monitored by the Consulting Arborist. 3. If injury should occur to any tree during construction, it should be evaluated as soon as possible by the Consulting Arborist so that appropriate treatments can be applied.