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i <br /> EXHIBIT A <br /> C41 Project Proposal <br /> CONCENTRIC <br /> I N T E G R AT I O N <br /> May 12, 2023 <br /> Mr. Randall Weaver <br /> Maintenance Supervisor <br /> City of Decatur, IL <br /> 1155 S. Martin Luther King Jr Drive <br /> Decatur, IL 62521 <br /> Subject: Design PLC Upgrades <br /> Concentric Project Number: 230176.50 <br /> Dear Mr.Weaver: <br /> With three exceptions, the City's existing PLC panels are "decades old" and utilize Allen-Bradley SLC-500 and <br /> MicroLogix 1500 PLCs,which are either completely discontinued (ML1500s) or partially discontinued (SLC500) by <br /> the manufacturer. Upgrading the PLCs will avoid unexpected downtime, reduce the future maintenance costs, <br /> and resolve some communication/alarming issues. The upfront and complete design of all PLC panel upgrades <br /> will allow for a uniform design with standardized components and facilitate accurate estimates for materials & <br /> labor. <br /> Scope of Services <br /> Equipment <br /> 1. No equipment is needed or provided for this proposal. <br /> Labor <br /> Project Management <br /> 1. Plan, schedule, and coordinate the activities that must be performed to complete the Project. <br /> 2. Coordinate a phone-based kick-off call. <br /> 3. Provide Monthly project status updates via email. <br /> 4. Conduct 2 project status meetings. <br /> Preliminary Design <br /> 1. Perform onsite investigation of the current controls of the panels listed below to determine the best <br /> upgrade approach. This may include in-kind equipment only replacement to a complete panel <br /> replacement. <br /> 8678 Ridgefield Rd., Crystal Lake, IL 60012 • 815-788-3600 • www.goconcentric.com <br />