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the existing units is recommended so as to expedite installation and not delay beginning of <br /> replacement. <br /> Other improvements included are replacement of the interstage and tune-up valves, installation of <br /> first stage permeate control valves, and reconfiguration of the control system to allow fully <br /> automatic operation as well as to accommodate the modifications included in this Approach. <br /> Improvements to the membrane system will allow the membrane system to be operated at a <br /> higher capacity of up to 7.0 mgd under ideal conditions. Since additional raw water capacity is <br /> not available on a long-term basis, and concentrate disposal capacity is currently limited to 1 .5 <br /> mgd, no request in additional treatment plant rated capacity beyond 8 .57 mgd can be requested at <br /> this time. <br /> The installation of bulk scale inhibitor tanks which are stored on-site will be included under this <br /> construction package. Construction drawings were prepared under a separate work order and can <br /> be incorporated within the construction drawings and specifications for this work order. <br /> SCOPE OF SERVICES <br /> Task 1 . Prepare Documents/Scope of Work for Membrane System Upgrades <br /> Consultant will prepare procurement documents that consist of drawings and specifications for <br /> feedwater pump upgrades, membrane replacement, train piping modifications, drawings of skid <br /> piping modifications and feedwater pump room, feedwater pump modifications scope, tune-up <br /> (dump) valve replacement, installation of profile valves, interstage valve replacement, permeate <br /> acid injection point relocation and corrective work to existing permeate piping caused by existing <br /> injector, development of membrane replacement program, membrane loading arrangement, and <br /> bulk scale inhibitor tank installation. The documents will be prepared to be used in advertising <br /> for bids, piggy-backing current contracts from other similar projects or municipalities, or direct <br /> purchase of equipment. The documents will include membrane specifications, projections and a <br /> Scope of Work for modifications to the train piping and arrays. It is estimated a total of 6 — 7 <br /> drawings will be prepared. <br /> The Consultant will attend a meeting with Purchasing and Utilities staffs to define the approach <br /> to procurement of contractor and equipment. The attached schedule provides a conservative <br /> approach assuming advertisement for bids is implemented. Direct purchasing equipment through <br /> similar type contracts or "piggy-backing" could reduce the time required to complete these <br /> improvements. <br /> Task 2. High Service Pumps Design <br /> Consultant will design improvements to the three existing high service pumps . This Task will <br /> consist of preparing drawings and specifications for upgrades to and replacement of all three high <br /> service pumps. Improvements are assumed to be confined to the interior of the existing process <br /> room building. Due to deteriorating conditions of the suction header, review of potential <br /> replacement of the existing suction header will be included. <br /> Preparation of construction documents will consist of process and piping plan; pump/piping plan, <br /> sections and elevations; electrical room plan; PID ' s; and electrical single line diagrams. It is <br /> assumed that approximately ten to twelve ( 12 - 14) drawings will be prepared for this Task. <br /> CAMDM Files\South RO Plant Upgrades to Restore Capacity-revUoc Page 3 <br />