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that prior to its removal the property owner submits to the city a written <br /> evaluation of the tree prepared by a certified arborist certifying the <br /> unhealthy condition of the tree and recommending its immediate removal. <br /> The written evaluation shall be on a form prescribed by the city manager <br /> pursuant to section 2.019 City Manager - Administrative and Rulemaking <br /> Authority. <br /> (2) Tree Preservation and Removal Standards. No permit for a development <br /> activity subject to this section shall be approved until the applicant submits <br /> plans or information, including a written report by a certified arborist, that <br /> demonstrates compliance with the following standards: <br /> (a) The following minimum percentages of the existing number of significant <br /> trees on the development site whose condition rating is 60 or higher (on a <br /> scale of 0 to 100) will be preserved: <br /> 1. 60% for projects on property zoned R -1. <br /> 2. 40% for projects on property zoned R -1.5 and R -2. <br /> 3. 40% for projects on property zoned R-3 and R-4. This percentage <br /> may be reduced to 20% providing the proposed project achieves at <br /> least 50% of the maximum density required for that zone. <br /> 4. 20% for projects on property zoned commercial, industrial, and <br /> public land. <br /> 5. 40% for projects on property in all other zones. However, if one of <br /> these zones contains maximum density ranges equal to or exceeding <br /> the maximum density required in the R -3 zone, the percentage may <br /> be reduced to 20% if the proposed project achieves at least 50% of <br /> the required maximum density. <br /> The condition rating shall follow the formula in the Guide for Plant <br /> Appraisal prepared by the Council of Tree and Landscape Appraisers. <br /> (b) The materials submitted shall reflect that consideration has been given to <br /> preservation in accordance with the following priority: <br /> 1. Significant trees located adjacent to or within waterways or wetlands <br /> designated by the city for protection, and areas having slopes greater <br /> than 25 %; <br /> 2. Significant trees within a stand of trees; and <br /> 3. Individual significant trees. <br /> (c) That development will occur in a manner that protects at least 70% of the <br /> critical root zone of each tree retained under subsection (2)(a) above. <br /> (d) If the proposal includes removal of any street tree(s), removal of those <br /> street trees has been approved, or approved with conditions according to <br /> the process at EC 6.320 Tree Removal and Replacement - Permit <br /> Decision. <br /> (3) Adjustment to Standards. Except for applications being processed under EC <br /> 9.8100 Conditional Use Permit Approval Criteria - Needed Housing, EC 9.8325 <br /> Tentative Planned Unit Development Approval Criteria - Needed Housing, EC <br /> Ordinance - 284 <br />