R2010-46 APPROVING CONTINGENCY FOR THE 1,000,000 GALLON COMPOSITE WATER TANK AND BOOSTER PUMPING STATION

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Aaaendix B History of Water Projects: Early 1990's—The IEPA informed the City that there were low pressure concerns on the south side of the City that need to be addressed. To conform to the Drinking Water Act of 1986 (removing nitrates from the drinking water), the North Water Treatment Plant would have been required to undergo major equipment replacement equivalent to $25 million - $50 million 1988 dollars. In the mid 1990's, the North Water Treatment Plant was sold to ADM. This created less demand from the City system, but left the SWTP without a backup option in case of power failure. April, 2001 — The City entered into an Agreement with Bainbridge, Gee, Milanski and Associates to perform preliminary engineering work to identify possible sites for a proposed water tank on the south side of the City to address low water pressure in the water distribution system. May, 2002 — Strand & Associates, Inc prepared a report called the Water System Master Plan that identified problems with the water system and recommended solutions. Two high priority projects included upgrading water mains between the SWTP and the elevated storage tanks, on Division Street and Garfield Avenue, and constructing a south elevated storage tank to stabilize system pressures and increase flow for fire suppression. January, 2005 - A memorandum to Council stated that after a long and difficult search for a suitable site for the water tank, a 3 acre site was located on the west side of Franklin Street Road a quarter mile north of Mount Gilead Road. City Council authorized the purchase of a 3 acre site from Greanias Farms for the amount of$60,000.00. June, 2006 - Strand completed a report entitled "Water System Master Plan Update" recommending the creation of a separate pressure zone for the area south of Lake Decatur. The concept is comprised of the installation of a booster pumping station working in conjunction with the proposed south elevated tank. January, 2007 -A report was presented to the City Council in a Study Session providing staffls recommendation for the design of the proposed new south elevated water storage tank. City Council concurred with the recommendation to provide for growth of the water system to meet demands of future residential and commercial development. This will result in the creation of a separate pressure zone for the area south of Lake Decatur. Page � 6