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DATE: FEBRUARY 23, 2002 TO: THROUGH: FROM: SUBJECT: JAMES E. CHANDLER COUNTY ADMINISTRATOR W. ERIK OLSON DIRECTOR OF UTILITY SERVICES GENE A. RAUTH OPERATIONS MANAGER GP\ WATER PRODUCTION PUMPING SYSTEM UPGRADE (ROCHA CONTROLS, INC.) BACKGROUND On January 9, 2001, the Board of County Commissioner's approved the overall Supervisory Control and Data Acquisition System (SCADA) plan for the Water Production and Distribution System This system is a single comprehensive, countywide water production SCADA System to serve the County's Water Production and Distribution Division. As part of three earlier Agenda Items, the Board of County Commissioner's approved Staff to proceed with Phases I, II and III of the plan, which dealt with both the North and South County Reverse Osmosis Water Treatment Plants. (See attached Agenda Items dated 03/01/01, 12/05/00, and 10/12/01). Additionally, as part of the authorization of phase III, the Board of County Commissioner's approved Work Authorization Number 4 with ROCHA Controls Inc , in the amount of $5,000.00. This Work Authorization authorized ROCHA Controls Inc. to conduct a radio survey of the radio frequency and existing equipment used as part of the SCADA system. (See attached agenda item dated 10/12/01). As explained in the 10/21/01 agenda item, the system is currently experiencing minor intermittent signal disruptions, which results in a loss of system communication between the two Water Plants. ANALYSIS Phase III is nearing completion. ROCHA Controls Inc. has completed the radio survey (See attached Radio Survey). The radio survey has identified several system problems and deficiencies. These deficiencies and problems primarily result from radio antennas, and can be corrected by equipment adjustments, repairs or replacements. These corrections are necessary to insure proper performance of the system. Staff has requested that an itemized cost breakdown and associated Work Authorization be provided by ROCHA Controls Inc for the corrections. (See attached Work Authorization #5). The following is summary of cost for the radio system corrections. Locations and Type of Site North County RO Plant / Master Site Roseland, Gifford & Kings Highway Elevated Storage Tanks / Remote Monitoring Grand Harbor, Sebastian Middle School & North Beach Sites / Remote Monitoring, Total Amount $ 6,600 $ 5,700 $ 4,800 $17,100 It is staffs desire to utilize part of the of project contingency, and unused funds, from Phases 1, 2 & 3 in order to fund the $17,100 required for the radio system corrections. (See depiction below). In doing so, the approved overall budget for the entire project would remain the same, $207,700.00. The current actual costs of the project are $125,274.00. The outstanding estimated costs for the project, including the $17,100 for the radio system repairs, would be $79,200.00. This would leave an unused fund balance of $3,-n6 00 ($207,700.00 - $125,274.00 - $79,200.00 = $3,226.00) MARCH 12, 2002 -102- •