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4. While performing tree watering, the Contractor shall maintain the tree <br />watering basin to include the removal of weeds and debris and the <br />maintenance of the watering basin to size and grade standards defined <br />herein. <br />5. Trees shall be watered in such a manner that does not result in erosion <br />of the tree watering basin, splashing of parked vehicles or damage to <br />any of the tree's surroundings. Haphazard riggings and /or watering out of <br />the window from the cab of watering equipment will not be tolerated. <br />6. The Contractor shall maintain a daily log of trees watered. The log shall <br />list the tree watered by site. A printed copy of the log, which shall be <br />maintained in digital format, must accompany invoicing for tree watering <br />services by the Contractor. <br />ROOT PRUNING SPECIFICATIONS <br />(1) In an effort to minimize future damage to public sidewalks and curbs and gutters, <br />the City is initiating a root pruning and root barrier installation program. The <br />Contractor will be provided a listing of trees to be root pruned. The list shall <br />include the location of the tree, tree species, lineal feet to be root pruned and <br />area to be pruned such as sidewalk or curb and gutter. <br />(2) Roots shall be pruned adjacent to the edge of the sidewalk, curb and gutter or <br />other improvements as indicated. Root pruning cuts adjacent to the sidewalk <br />shall be up to four (4) inches wide /twelve (12) inches deep, and a minimum of <br />twelve (12) feet in each direction from the centerline of the tree as measured <br />from the top of the sidewalk or other improvements. Root pruning cuts adjacent <br />to the curb shall be four (4) inches wide, eighteen (18) inches deep, and a <br />minimum of eight (8) feet in each direction from the centerline of the tree as <br />measured from the top of the curb or other improvements. <br />(3) Root pruning equipment shall be specifically designed for this purpose with <br />cutting teeth sharpened adequately to sever roots in a clean manner and <br />equipped with padded tracks or rubber tires to prevent scraping or marking the <br />sidewalk. <br />(4) After the pruning cut has been completed, the Contractor shall install the <br />appropriate amount of root pruning barrier by Deep Root Corporation, or an <br />approved equal. All cuts shall be backfilled immediately upon completion of root <br />pruning and barrier installation at each location. Backfill material shall consist of <br />soil and /or mulch from root pruning and shall be free of rocks and other debris. <br />All debris generated by these operations shall be immediately removed from the <br />site and properly disposed of by the Contractor. <br />(5) The Contractor shall repair or replace all utility service connections or sprinkler <br />systems within the right- of -way that are damaged or removed as a result of the <br />root pruning operation. Repairs shall be implemented immediately and completed <br />by the end of the same working day. Repairs and replacements shall be at least <br />equal quality and configuration to existing improvements and shall match them in <br />finish and dimension. <br />City of Santa Ana Street Tree Maintenance RFP <br />19E -38 Page 35 <br />