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PUD-18-07M Planning Commission <br />Page 14 of 16 <br /> <br />58. ROOT CUTTING: The applicant shall comply with the following tree root cutting <br />requirements: <br /> <br />a. Roots 1-inch in diameter or larger to be removed shall be cleanly cut with a <br />hand saw. Roots smaller than 1-inch in diameter are not considered to be <br />significant and may be removed by the most efficient means. <br />b. Roots larger than 2-inches in diameter and within 8-feet of the tree trunk shall <br />not be cut or ground unless prior approval has been received from the <br />Landscape Architecture Division. <br />c. Roots of any diameter farther than 8-feet from the tree trunk, which are in <br />conflict with the proposed work may be ground a maximum of one-half of their <br />diameter. Work of this nature shall only be performed using a mechanical <br />stump grinder and only by personnel familiar with its operation. <br />d. Roots up to 6-inches in diameter and farther than 8-feet from the tree trunk <br />may be removed if they are in conflict with the proposed work. Roots that are <br />removed shall be cleanly cut using a hand saw. <br /> <br />59. ROOT CONTROL BARRIER: The applicant shall provide root control barriers and 4-inch <br />perforated pipe for all trees located within 8-feet of pavement or other hardscape, <br />determined by the City Landscape Architect. Root barriers shall be located along the edge <br />of the pavement wherever the tree is within 8-feet of pavement or hardscape. Information <br />and details shall be included in the landscape plan submittal for review and approval by <br />the Landscape Architecture Division. <br /> <br />60. TREE PRUNING: Pruning shall be conducted by a certified arborist familiar with the <br />International Society of Arboriculture (ISA) pruning guidelines and shall comply with the <br />guidelines established by the ISA, Tree Pruning Guidelines, current edition, to maintain <br />the health of the trees. <br /> <br />61. TREE PROTECTION FENCING: Prior to issuance of a grading or building permit, the <br />applicant shall install temporary 6-foot tall chain-link fencing (or other fence type <br />acceptable to the Landscape Architecture Division) outside of the existing tree drip lines. <br />The location of the tree protection fencing shall be shown on the demolition plans (if <br />applicable), grading, building, and/or landscape plans. The fencing shall remain in place <br />until final landscape inspection by the Landscape Architecture Division. Removal of such <br />fencing prior to approval may result in a “stop work order.” <br /> <br />62. PROJECT PLANS: The following statements shall be printed on the demolition, grading <br />and landscape plans where applicable to the satisfaction of the City Landscape Architect <br />prior to issuance of building permits: <br /> <br />a. No existing tree may be trimmed or pruned without prior approval by the City <br />Landscape Architect. <br />b. Utilize best efforts to locate any new utility trenches outside of the existing <br />canopy of the trees to be saved. If this is not feasible, the applicant shall submit <br />a report from a certified arborist acceptable to the City indicating trenching will <br />not be detrimental to the health of the tree. <br />Docusign Envelope ID: 7FA835AA-907F-44E8-8602-4A3F13DD08A0