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- a . <br /> STRAND <br /> ASSOCIATES, INC.m <br /> E N G I N E E F S <br /> 910 West Wingra Drive November 30, 2��5 <br /> Madison,WI 53715 <br /> Phone:608-251-4843 <br /> Fax:608-251-8655 <br /> Mr. Richard Berard <br /> Office Locations City of Decatur <br /> Madison,WI 1 Gary K. Anderson Plaza <br /> Joliet,IL Decatur, IL 62523 <br /> Louisville,KY <br /> Lexington,KY <br /> "'°b'ie,A� Re: Master Plan U date <br /> Columbus, IN p <br /> Lancaster.OH <br /> Indianapolis, IN llear Richard� � <br /> Milwaukee,WI <br /> I have your E-mail describing additional modeling and evaluations the City would like <br /> www.strand.com <br /> included in the Master Plan Update. Let me summarize the decisions made by the City <br /> and list the additional tasks desired. <br /> The decisions made by the City that impact completion of the Update are as follows: ' <br /> 1. The City desires to maintain approximately 50 psi as the minimum pressure in <br /> the system during normal operating conditions. <br /> 2. The existing elevated tanks will not be replaced in the near future, making it <br /> undesirable to replace them with new taller tanks in the next 3 to 5 years. <br /> 3. Ideally, service to the high area in southwest Decatur should be provided by <br /> development of a separate pressure zone downstream of the new south tank. The <br /> south tank overflow elevation will match the overflow elevations of the existing <br /> tanks. <br /> 4. �he City will provide a lis� �f Cuitl.ig c�mr:��ents for in�.usion in th:, fi:.a: r�p�:�. <br /> 5. The modeling figures will be moved to an appendix in the report. <br /> Tasks that you have requested to finalize the Update are listed below: <br /> 1. Revise the extended period simulation demonstrating the performance of the <br /> elevated tanks to fully refill the tanks during a series of maximum days. Revise <br /> the report figures accordingly. <br /> 2. Add an extended period simulation demonstrating the performance of the <br /> elevated tanks over a series of average days. Add the necessary figures to the <br /> report. <br />