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Attachment 3). In addition, the Director may require the Contractor to <br />remove or prevent encroachment of trees into the public right of way <br />where the tree blocks vision or is considered undesirable. Low branches <br />overhanging sidewalks shall be trimmed to a height of nine (9) feet above <br />finish grade. Young trees needing pruning/trimming, training, and <br />shaping to develop caliper and a strong structural framework may have <br />low branching laterals and or appropriate sucker growth. Contractor shall <br />remove hangers under 15" and fallen limbs 80 lbs. or less. <br />b) Staking, Tying and Guying <br />All trees requiring staking shall be securely staked at all times with stakes <br />and rubber cinch ties approved by the Director. Rubber hoses and wire <br />are not permitted ties. All stakes shall be set perpendicular to prevailing <br />winds unless designated otherwise by the Director. Tree stakes shall also <br />be set a consistent distance away from the trunk of the tree (minimum six <br />(6) inches) to reduce abrasion and cell elongation. The tops of all tree <br />stakes shall be removed approximately three (3) inches above the highest <br />tie to reduce abrasion of main or lateral branches of the tree. <br />c) Mulching of Bare Areas <br />In designated tree ring areas where bare soil is visible the Contractor shall <br />apply AG Organics, Inc. AG203 Nutri Mulch 2"-3"or approved equal ''/2" <br />thick minimum quarterly (every third week of January, April, July, and <br />October) and as necessary to maintain uniform and complete coverage. <br />Mulch is to be removed and completely replaced with fresh mulch every <br />July. <br />d) Hazardous Tree Reporting <br />In the event the Contractor detects any tree displaying roots heaving or <br />girdling (either by roots or a foreign material), leaning, broken or hanging <br />limbs, or if Contractor determines that potential safety hazard may exist <br />Contractor shall notify the Director by phone within twenty-four (24) <br />hours. <br />e) Loss of Trees <br />The Contractor shall be responsible for the complete removal and <br />replacement of any and all trees lost due to the Contractor's failure to <br />perform under this agreement. Failure to perform includes but is not <br />limited to, girdling trees with string trimmers or tree ties, improper <br />planting of new trees, improper pruning/trimming techniques which <br />25A-27