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C & W engineering Inc. <br />Consulting Engineers — Electrical • HVAC • Plumbing <br />6903 Vista Parkway North, #10 <br />West Palm Beach, FL 33411 <br />(561) 642-5333 <br />Revised October 06, 2022 <br />Nick Black, P.E. <br />Kimley-Horn & Associates, Inc. <br />1920 Wekiva Way <br />West Palm Beach, FL 33411 <br />Subject: Indian River County Utilities, "Gifford" Central Waste Water Plant — Main Generator <br />and ATS Replacement, Emergency Power Feeder to Solids Building <br />Design/Permitting/Bidding/ Construction Services — Electrical Proposal. <br />C&W Ref. 226607 <br />Dear Mark: <br />I am pleased to submit this proposal for IRC Utilities "Gifford" Wastewater Treatment <br />facility design phase, bidding and permitting phase, and construction phase services proposal <br />for the replacement of the main plant ATS switch, and 1 MW generator unit, also to demolish <br />the existing Sludge facility 365kW generator, and transfer switch, provide a new ATS switch <br />and an emergency feeder from the new 1 MW generator to the Sludge planta <br />Proiect Understanding: <br />1. Investigate the existing electrical system and design the replacement of the existing <br />1 MW generator, 2000A ATS switch, provide a temporary emergency service with <br />temporary wiring to keep the wastewater facility backed up by a rental generator unit <br />and a temporary ATS switch. <br />2. Design an underground power feeder from the main electrical room/ new 1 MW <br />generator to the Solids Sludge Building ATS. <br />3. Provide a sequence of demolition and installation/replacement that is most efficient in <br />keeping plant load on normal power; while minimizing the number of shut downs and <br />the number of temporary transfers of power. <br />4. Replacement of existing ATS equipment and generator unit will include integration to <br />the existing plant PLC and SCADA systems. The new equipment will be designed to <br />provide status of ATS switch positions and any equipment alarms such as loss of <br />77 <br />