19E - RFP - STREET TREE MAINTENANCE

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In addition, the Contractor shall not drop logs or trunks so as to create undue noise or impact shock related damages to public and /or private property. (10) Stumps, including the root flare shall be ground to a depth of no less than eighteen (18) inches. Surface roots shall be traced and ground to a depth of no less than eight (8) inches. Debris generated by stump grinding and root removal shall be removed from the site and replaced with native soil. Chips and stump grindings shall not be used as a backfill material. (11) The Contractor shall be responsible for the repair of any private property irrigation system components damaged during a tree removal or stump grinding. Repairs shall be made using components matching those that were damaged. D. TREE PLANTING & YOUNG TREE CARE (1) Tree Planting 1. Tree planting consists of the installation of nursery stock container or palm trees supplied by the Contractor. 2. The Contractor shall comply with all general specifications standards described herein. 3. As stated previously herein, the Contractor shall identify the location of all utilities and private property landscape irrigation components prior to the planting of any tree. The Contractor shall assume full responsibility for any damage that occurs during the planting of any tree. 4. The Contractor shall supply quality nursery stock which is fully rooted and representative of recognized standards for size and quality of the material being planted. 5. Brown trunk height (BTH) for palm trees shall be measured from the top of root ball to the lowest green frond attached to the trunk at an angle of ninety (90) degrees. 6. Planting stock shall be well watered prior to shipping and covered for the duration of transport. Trees that are delivered uncovered, with a dry or fractured root ball or with broken scaffold limbs will be rejected. Root bound material will be rejected. Palms that are delivered uncovered, with a dry root ball or with a soilless root ball will be rejected. 7. The Contractor shall not begin excavation for the planting of a tree without first confirming that the planting site being considered is indeed the site intended for the planting of a tree. Any confusion should be resolved by contacting the City Arborist for assistance. In excavating planting pits, the Contractor shall not excavate deeper than the depth of the root ball of the tree being installed. The bottom of the planting pit shall be undisturbed so that the planted tree will not settle below top of root ball grade standards defined herein. As the width of the parkway allows, the Contractor shall excavate the planting pit to be two (2) times the width of the root ball of the nursery stock being planted. 8. All nursery containers and box sides shall be removed from tree root balls prior to planting. The Contractor shall not install trees with box City of Santa Ana Street Tree Maintenance RFP Page 33 19E -36