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Consent Agenda Item INDIAN RIVER COUNTY, FLORIDA DEPARTMENT OF UTILITY SERVICES Date: March 10, 2014 To: Joseph A. Baird, County Administrator From: Vincent Burke, P.E., Director of Utility Services („ca' Prepared By: Arjuna Weragoda, P.E., Capital Projects Manager AL) Terry Southard, Utility Operations Manager Change Order No.2 for the Water Plants Lime Slurry Injection Project — UCP 2715 Bid No: 2013028 Subject: DESCRIPTIONS AND CONDITIONS: On May 7, 2013 the Indian River County Board of County Commissioners (BCC) awarded the contract for the Water Plants Lime Slurry Injection Project to R.J. Sullivan Corporation at a cost of $2,549,000.00. Notice to proceed was issued on August 21, 2013 to R.J. Sullivan to start the work at the North and South Water Treatment Plants. Change order No.1 to replace the acid tank at the South RO plant was approved by the board on October 8th, 2013 for a lump sum amount of $ 189,527.00. Part of the original scope of the project was to do modifications to the clearwells at both water treatment plants. In order to perform this work, the clearwells had to be taken out of service. During the inspection of the clearwells our staff and consultant Kimley-Horn and Associates noticed the paint separating from the concrete in the west clearwell at the North RO plant. The project is approximately 90% complete and during the functional testing the engineers noticed the equipment between the remote sensors and instruments and the central computer running Supervisory Control and Data Acquisition (SCADA) does not have the necessary hardware to communicate. SCADA is purely a software package that is positioned on top of hardware to which it is interfaced, in general via Programmable Logic Controllers (PLCs). PLCs, are connected to the data servers either directly or via networks. Data servers are connected to each other and to client stations via an Ethernet LAN. Adding Carbon Dioxide and Lime may augment the conditions of the paint in the clearwell if left in its current conditions. Therefore, given the deteriorating condition of the paint coupled with the lag time involved in the procurement process and the need for accurate/reliable communications between the main station and remote sensors, IRCDUS requested a proposal from the current contractor, R.J. Sullivan Corporation to perform the additional work. They submitted a proposal to our consultant Kimley-Horn and Associates on March 4, 2014. ANALYSIS: R.J. Sullivan Corporation submitted a proposal to perform the additional work outlined in the change order within the west clearwell and the hardware modules for communication for a lump sum amount of $50,155.96. Staff and our consultant have evaluated the proposal and believe that the scope and fee are reasonable. The Change Order No.2 will add $50,155.96 to the current F:\Utilities\UTILITY - Engineering\WTP - North RO\Lime Slurry Injection Project -UCP 2715\Admin\Agenda-Change Order No.2 to RJ 3-6-14.doc Page 1 of 2 70