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Project 12-2620 Request for Approval of Change Order No. 2 July 28, 2014 Page 2 of 3 3. The contract documents require the Contractor to furnish and install eleven palm trees to complement the landscaping along the bike trail. However, the palm tree planting and drainage detail was inadvertently omitted from this project. In order to procure proper installation and drainage at each tree, staff requested the Installation of perforated 4 -Inch diameter pipes with crush rock and filter fabric, additional irrigation laterals and two inspection tubes with filter fabric. Therefore, it is recommended to compensate the contractor for the extra work at each tree, (PCO #11), Agreed Cost = $2,474.75 4. As part of the contract documents, plans call for a new irrigation system including a calsense controller, The system is to be installed and connected directly onto an existing Irrigation system located just north which operates from its isolated water source and uses its own controller. In order for the system to function properly, the new system must isolate and contain its own master valve and flow sensor. Furthermore, the plans called for a local radio communication controller as part of the contract. However, the city of Santa Ana uses phone modem communication instead. To correct these problems, the controller was modified and a phone modem was added in order to make the system function properly. Therefore, it is recommended to compensate the contractor to separate the system by installing a new master valve and flow meter along with the coordination, removal, modification and re -installation of the controller. (PCO #9 & #10). Agreed Cost = $4,111,44 EXTRA WORK AT AGREED UNIT PRICES The contract documents require the contractor to furnish and install 686 5 -gallon Douglas Iris plants (Bid Item #40) and 68 24 -inch London Plane trees (Bid Item #43) as part of the landscaping. However city staff and the contractor determined the layout to accommodate only 440 plants and 32 trees. Therefore, the contractor requested an adjustment in unit bid price for since the quantity decreased more than 25 percent as stated in the Green book. The following contract items were added to compensate the contractor for the decrease in quantity as a result of site conditions. Item No Bid Item Unit Quantity Unit Price Amount 50 5 Gallon Iris Douglasiana; Dou las Iris EA 440 $14.03 $6,173.20 51 24" Platanus Acerifolia: London Planetrea EA 32 $358.00 $11,456.00 SUBTOTAL $17,629.00