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ti O�•DEc' <br /> � c <br /> v o0 <br /> ■� <br /> %ILINO�S <br /> November 7, 1996 <br /> PUBLIC WORKS MEMORANDUM <br /> NO. 96-77 <br /> MEMORANDUM TO: Honorable Mayor and City Council <br /> FROM: James L. Williams,Jr., City Manager .A� <br /> Bruce A. McNabb,Director of Public Works ��"` <br /> Stephen P. Swanson, City Engineer�j <br /> John A. Smith,Water Production Manager <br /> SUBJECT: SWTP-Pump Station Modifications (Corley Closure) <br /> City Project 9421A <br /> This project involves the installation of a new 4-inch force main and modifications to an <br /> existing lift station near the City's raw water pump station at the Lake Decatur Dam. The new <br /> force main replaces an 8-inch force main that connected to a sanitary sewer main abandoned by <br /> the Sanitary District of Decatur (SDD). The abandonment by SDD was planned because of the <br /> minin o erations b the Vulcan Materials Com an . This abandonment re uired the Cit to <br /> g P Y P Y q Y <br /> reroute its sanitary sewer force main to another location. <br /> The force main size was reduced from an 8-inch to a 4-inch diameter as the old main served <br /> the City's original water works plant that has been replaced by the new South Water Treatment <br /> Plant. The new 4-inch force main will serve only the raw water treatment plant which generates <br /> substantially less wastewater flows. <br />