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� � OF'p fC <br /> � 9�, <br /> - G <br /> V 70 <br /> `y':��i! <br /> '/[LINO�`' <br /> July 27, 1999 <br /> PUBLIC WORKS MEMORANDUM <br /> NO. 99 - 43 <br /> MEMORANDUM TO: Honorable Mayor and City Council <br /> FROM: James L. Williams,Jr., City Manager <br /> Bruce A. McNabb, P. E.,Director of Public Works <br /> Stephen P. Swanson,P. E., City Engineer����� <br /> SUBJECT: Northeast Water Distribution Service Area Study <br /> The City of Decatur's planned sale of its North Water Treatment Plant (NWTP) to <br /> Archer-Daniels-Midland Company (ADM) will result in this facility being disconnected from the <br /> City's potable water distribution system. ADM will convert the NWTP for its sole use and on <br /> completion of the plant's conversion, reduce its demand for City water by an estimated 15 <br /> million gallons a day (mgd). The NWTP currently produces and pumps an average of 8 mgd <br /> into the City's distribution system. Preliminary modeling analysis of the City's northeast water <br /> distribution service area indicate flow and pressure problems could develop as future growth <br /> occurs in this area. These problems are compounded by the NWTP being disconnected from the <br /> City's system. <br /> The northeast service area of the distribution system is generally considered to be an area <br /> south of East Hickory Point Road, west of Lake Decatur, north of Garfield Avenue/Faries <br /> Parkway and east of 22nd Street (refer to attached locale map). This area is largely undeveloped <br /> and its future land use is expected to be primarily industrial and residential. It is important that <br /> the City plan and develop the necessary water distribution facility upgrades and improvements in <br /> this area to meet expected short and long term needs. <br /> The study to determine these needs involves the analysis of projected land use in the area <br /> and the estimated water demands of the future development. This information is used to perform <br /> computer modeling runs of the City's water distribution system to evaluate the benefits of <br /> possible modifications, upgrades and improvements to water pressure and flow in the system. <br /> The time and expertise required to perform the study is more than City staff can commit. It is for <br /> this reason staff requested proposals from three firms considered by staff to be capable of <br /> providing the required services. The three firms were Bainbridge, Gee, Milanski & Associates; <br /> Clark Dietz, Inc.; and Strand Associates, Inc. Staff's review of the proposals determined that <br />