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INDIAN RIVER COUNTY, FLORIDA <br />DEPARTMENT OF UTILITY SERVICES <br />Date: February 17, 2015 <br />To: Joseph A. Baird, County Administrator <br />From: Vincent Burke, P.E., Director of Utility Services( <br />Prepared By: Arjuna Weragoda, P.E., Capital Projects Manager AW <br />Subject: Wastewater Collection/Transmission Model -Work Order No.1 to Atkins <br />DESCRIPTIONS AND CONDITIONS: <br />Indian River County Department of Utility Services (IRCDUS) needs to update the existing wastewater <br />system hydraulic model to reflect current GIS (Geographical Information System) data and better <br />represent the current system configuration. The existing wastewater WaterCAD system model is <br />outdated and does not reflect the current configuration. <br />The previous update to the wastewater transmission system hydraulic model occurred in 2004. Since <br />then, new development has occurred in the service area requiring additional wastewater <br />infrastructure. In order to accurately evaluate the County's existing collection system, determine if <br />any capacity deficiencies exist and plan for additional pipeline, storage and pump station capacity, an <br />updated hydraulic model must be in-place. <br />The purpose and goals of the System -Wide Hydraulic Wastewater Model Program are to: <br />➢ Comply with capacity assurance requirements. <br />➢ Develop and maintain a functional tool used to determine system capacity for existing and <br />future flows during dry and wet weather conditions. <br />➢ Assist the County in meeting level of service performance objectives expected by customers. <br />➢ Develop a tool that will help the County determine required capital and operational <br />improvements. <br />➢ Provide a tool for assisting the County in budgeting of infrastructure to effectively manage <br />future development and economic growth. <br />Staff requested that Atkins prepare a proposal to evaluate modeling the existing wastewater <br />collection system. The scope of the evaluation is more specifically described in the attached Work <br />Order No.1. Atkins has submitted Work Order No. 1 to evaluate and prepare a hydraulic model of <br />the existing distribution system and calibrate the model. On November 4th, 2014, the Indian River <br />144 <br />