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Change <br />Order Number 4 Summary <br />Indian River CountyNorth <br />County Water Treatment Plant Expansion Phase II <br />Potential <br />Change <br />Order <br />number <br />Description <br />Amount <br />Explanation <br />44 <br />Two raised sand filter access platforms <br />$16,954.00 <br />The sand filters are raised above the ground limiting access to the <br />mechanical parts located at the top of the filter, Operator safety and <br />accessibility for maintain the $185,400 piece of equipment are the <br />primary reasons for this change. 11 <br />45 <br />Instrumentation Remote Input/Output Panel <br />$46,275.00 <br />This change is to provide additional wiring, conduits, and input and <br />output cards for the existing plant 1/0 cabinets along with Surge <br />protection, <br />46 <br />Differential Pressure Guages <br />$30590.00 <br />This change upgrade the differential pressure guages to a higher <br />quality internal parts. <br />49 <br />Credit for Surplus Fuel <br />($25,000.00) <br />The project specifications require the contractor to provide two full fuel <br />tanks at the completion of the project which is not necessary since the <br />contractor will supply the other tank of fuel. <br />51 <br />Credit for not removing membranes from Skids <br />(361363.00) <br />IRC was planning to replace the Reverse Osmosis membranes in <br />1 & 2 <br />Skids 1 & 2. However since they are still performing well, the <br />membranes will now be installed in skids 6 & 7. The contractor is <br />providing a credit for the removal of the membranes that will now not <br />be performed. This change provides the plant with the flexibility to <br />produce water from two additional skids and reduce the overall cost o <br />the project. <br />53 <br />Handrail on Acid Containment Structure <br />$11,380.00 <br />The sulfuric acid tank has a spill containment structure around the <br />tank. IRC staff asked that a handrail be installed for fall protection. <br />54 <br />Truck Loading Panel for Sodium Hypochlorite <br />$3,900.00 <br />This change is for additional electrical conduits to connect two truck <br />loading panels for the liquid sodium hypochlorite tanks. This is a <br />change required to prevent overfilling of the tanks and spilling into the <br />containment. <br />56 <br />Chlorine Piping Changes <br />$11,200.00 <br />This change provides additional chemical piping to allow more precise <br />dosing of the plant odor control equipment. This change provides <br />greater plant operating flexibility and potential for chemical cost <br />Savin s over the life of the project. <br />Total Amount Change Order No. 4 <br />Original Contract Price <br />Change Order Number 1 <br />Change Order Number 2 <br />Change Order Number 3 <br />Change Order Number 4 <br />Total Contract Price <br />$61,936.00 <br />$21,080,300,00 <br />($804,632.00) <br />$2889824.00 <br />$200,527.00 <br />$61,936.00 <br />$20,826,956.00 <br />