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. � <br /> STRAND <br /> ASSOCIATES,INC. <br /> . � <br /> 910 West Wingra Drive <br /> Madison, Wisconsin 53715 <br /> Phone: (608) 251-4843 <br /> Fax: (608) 251-8655 <br /> October 18, 2001 <br /> Mr. Keith D. Alexander <br /> Director of Water Management <br /> City of Decatur <br /> 1155 South Martin Luther King Drive <br /> Decatur, IL 62521 <br /> Re: City of Decatur—Water System Master Plan <br /> Amendment No.l - SCADA System Technology Plan <br /> This is Amendment No. 1 to the Agreement between the ENGINEER and OWNER for <br /> professional services dated March 27, 2001. <br /> The Agreement is amended to include development of a SCADA (Supervisory Control and Data <br /> Aquisition) System Technology Plan for the water production facilities as follows: <br /> Under Scope of Services,page 4, ADD the following: <br /> 10. Supervisory Control and Data Acquisition (SCADA) System Technology Plan shall include <br /> the following: <br /> a. Instrumentation Assessment - Instrumentation utilized at the existing water facilities will be <br /> reviewed for extent of remaining useful life, O&M costs, and the existence or lack of signals <br /> that will be compatible with the proposed SCADA System. The effectiveness of the type of <br /> existing instrumentation and its present location will also be evaluated. Existing <br /> instrumentation will be assigned a priority for upgrading/replacement, and options for new <br /> instrumentation will be provided for devices requiring replacement. Evaluation of existing <br /> instrumentation and analysis of required/desired new instrumentation will also be conducted. <br /> New instrumentation will also be given a priority based on its capital cost, contribution to <br /> operational efficiency, and O&M costs. Instrumentation manufacturers will be contacted <br /> regarding the application and budgetary cost for new instrumentation. <br /> b. Review of Equipment - Process equipment at the existing water facilities will be reviewed for <br /> extent of remaining useful life, O&M costs, and the ability to interface with this equipment to <br /> provide the desired monitoring and control functions from the proposed SCADA System. <br /> ENGINEER will review the effectiveness of the type of existing equipment, and existing <br /> EXCELLENCE IN ENGINEERING SINCE 'I J46 <br /> Joliet, IL • Louisville, KY • PEH - Lexington, KY <br />