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1_3. TREE CARE 1.3.1 GENERAL REQUIREMENTS The Contractor shall bring to the attention of the City of Santa Ana within twenty-four (24) hours any tree -displaying root heaving or girdling (either by roots or a foreign material, leaning, broken or hanging limbs, or any other reason posing a potential safety hazard.) Any safety hazard present now shall be reported immediately. Note: All trees up to 9 inch DBH (Diameter at Breast Height) are included in routine maintenance. 1.3.2 REPORTING An annual report shall be provided by an ISA Certified Arborist, by January 30th of each year, on the overall condition and health of all trees under the scope of this contract. Specific trees in need of additional care or removal shall be identified by species and/or address. The Contractor shall provide an annual report identifying the location, address and species of tree vacancies. 1.3.3 PRUNING All trees within the scope of work shall be maintained to keep the natural integrity and shape of the trees. This work shall be accomplished in a manner, which will ensure that each individual tree is pruned per American National Standards Institute (ANSI) standards, per ANSI A300 Part 1, 2008 pruning standard and the ASNI Z133.1 as outlined in the City of Santa Ana Tree Pruning and Stump Removal Specifications are to be followed. All work shall be of the highest quality as outlined under the City of Santa Ana Tree Pruning and Stump Removal Specifications. In addition, the Contractor shall remove or prevent encroachment where it blocks vision or is considered undesirable by the City of Santa Ana. Low branches overhanging sidewalks shall be removed to a height of seven (7) feet above grade. Young trees needing pruning, training, and shaping to develop and maintain a dominant leader from which smaller primary branches arise that are radially and vertically spaced along the trunk. From time to time, the contractor may be asked to raise the canopy of the trees for security reasons and this shall be considered routine maintenance. 1.3.4 STAKING. TYING AND GUYING All trees under 4" DBH requiring staking shall be securely staked at all times with approved stakes and rubber VIT ties. Rubber hoses and wire will not be permitted. All stakes shall be set perpendicular to prevailing winds unless designated otherwise by the City of Santa Ana. Tree stakes shall also be set a consistent distance away from the trunk of the tree (minimum six (6) inches) to reduce abrasion and cell elongation. The tops of all tree stakes shall be removed approximately three (3) inches above the highest tie to reduce abrasion of main or lateral branches of the tree. 1.3.5 FERTILIZATION All trees shall be fertilized using a complete or approved fertilizer a minimum of one (1) time per year. City of Santa Ana — RFP 20-041 Landscape Maintenance Services for Public Works Agency City Yard Facility