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GOAL 4.14 <br />Tukwila's streetscapes and landscaped areas are sustainable and attractive, <br />and its urban forest is healthy, diverse, and safe. <br />POLICIES <br />4.14.1 Develop tree/urban forest inventories and assess the health of trees and forests in <br />Tukwila's public spaces. <br />4.14.2 Develop maintenance plans and programs for trees on City property or rights-of-way <br />to ensure that maintenance pruning is properly carried out, that diseases and pest <br />infestations are managed, that hazardous trees are identified and managed in a timely <br />manner to reduce risks, and that invasive vegetation is properly managed. <br />4.14.3 Modify landscape code, and educate property owners, property managers, landscape <br />maintenance companies and tree companies to promote best practices for soil <br />preparation, planting techniques, pruning, trenching and general tree care. <br />4.14.4 Ensure that landscaping and replacement trees in new development or re -development <br />are properly cared for and thrive in perpetuity, through such means as maintenance <br />agreements, monitoring and enforcement. <br />4.14.5 Develop a mechanism to ensure that tree removal and maintenance companies have the <br />necessary qualifications and liability insurance to work in Tukwila. <br />4.14.5 Modify landscape code to require diversity of tree species in landscape plantings and <br />consideration of species already present in the vicinity. <br />4.14.7 Establish minimum standards and landscape specifications to ensure long-term tree <br />health for street trees, required landscape trees and required replacement trees, including <br />minimum soil volume, soil quality, plant quality, planting techniques, irrigation, mulching, <br />tree pruning, and prohibition of topping. <br />4.14.8 Develop an approved/recommended tree list for street trees, landscape perimeter plant- <br />ing and parking lots that recognizes the importance of the concept of "right tree, right <br />place, taking into account available planting space and infrastructure/utility conflicts, and <br />that considers the importance of species diversity, climate conditions, canopy coverage <br />goals, allergy issues, urban wildlife benefits, and tolerance of urban conditions. <br />TUKWILA COMPREHENSIVE PLAN - 2015 PAGE 4-25 <br />34 <br />