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EXHIBIT#A _ <br /> Work Order Number 5 <br /> Membrane Replacement for RO Skids#5, #8 and <br /> Installation of Membranes in RO Skid #7 <br /> North (Hobart)RO Water Treatment Plant <br /> PROJECT UNDERSTANDING <br /> The existing membranes in stage 2 of skids#5 and 48 at the Hobart water treatment plant have <br /> degraded rapidly,due to impacts from the scale inhibitor use. Replacement of the 2"d stage of <br /> each of these RO skids is necessary and will consist of removal and disposal of.the existing <br /> elements,swabbing/cleaning of the existing pressure vessels, disinfection of RO skid product <br /> piping, installing new membrane elements, flushing, and startup and testing of new membranes in <br /> the existing skids. <br /> Specifications and drawings have been prepared wider PO#71787-00 for membrane replacement <br /> of RO skids#1 and#2. Removal of RO skids#1. and#2 elements under the previous purchase <br /> order will be used in skid#7, which is currently empty. Placing skid #7 into service with used <br /> membrane elements from RO skid 41 and#2 will be included under this work order. <br /> Replacement of permeate hoses on the RO skids#1 and#2 will be included under this scope of <br /> work. The work will be performed by an original equipment manufacturer(OEM)who has <br /> bonding capacity and a general contractors' license, experienced in performing this type of work. <br /> The work will be publicly advertised for bidding through Indian River County(IRC)purchasing <br /> department. <br /> SCOPE OF SERVICES <br /> The following scope consists of engineering support for membrane replacement of skids#S and <br /> #8, permeate hose replacement on RO skids #1 and #2, Florida Department of Environmental <br /> Protection permitting, and startup services for RO skid#7 at the North Hobart water treatment <br /> plant. <br /> Task 1—Update Specifications and Drawings <br /> Consultant will update the technical specifications to include membrane replacement with new in <br /> stage 2 of RO skids#5 and#8. <br /> Consultant will update the drawings and specifications to include permeate hose replacement with <br /> hard-piping on RO skids#I and#2 only. <br /> Task 2—Permitting <br /> Consultant will prepare a FDEP permit application FDEP Form 62-555.900(l),Application for a <br /> Specific Permit to Construct PWS Components for a minor modification to the RO water plant <br /> without an increase in rated plant capacity. <br /> K:\WPB_Civi1\044572035-Hobart Membrane Replacement\Scope\Hobart Membrane Replacement 5&8 Additional Services <br /> rev l.doex <br /> Page i of 3 <br /> 211 <br />