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<br />VIII-A-1 <br /> <br />MEMO <br /> <br />To: <br />From: <br />Date: <br />Re: <br /> <br />Honorable Mayor and City Council <br />Tom Montgomery <br />September 29,2005 <br />Water System Improvements <br /> <br />The Operations Committee met September 27th to review proposed water system <br />improvements. These improvements were drafted to address problems with water quality <br />(nitrate levels in 3 of the 5 city wells and cyanazine levels in Well #3) and water supply <br />needs generated by continued development. Two major water system improvements are <br />recommended to be constructed as soon as possible: <br />. Well #8 - a new water supply well to be constructed in Vermillion Falls <br />Park near the intersection of 21 st St. and Commerce Drive <br />. Water Treatment Plant - construction of a nitrate removal plant <br />adjacent to the ground storage tank on Hwy 55 near the Super Store. This <br />plant would treat water from Wells #3 and #5. <br /> <br />Well #8 <br />Staff is proposing the construction of Well #8 in Vermillion Falls Park along with <br />a watermain connection south on Commerce Drive to connect to a trunk watermain in <br />Spiral Boulevard. With Well #3 currently out of service, we are recommended a fast <br />track schedule to drill the well late this fall and through the winter. A temporary prefab <br />structure will likely be utilized as a well house through the summer in order to put the <br />well into service in time to meet the higher summer water demands. As proposed, the <br />new pumphouse would be constructed in the fall, when the new well can be taken out of <br />service after the peak summer demand has passed. <br />The preliminary estimate of cost for the new well is about $850,000. The cost of <br />half a mile of new watermain along Commerce Drive is about $400,000, for a total <br />preliminary estimate of$I,250,000. These costs include estimates for contingencies and <br />engmeenng. <br /> <br />Water Treatment <br />Staff is proposing construction of a water treatment facility <br />at the ground storage tank location on Hwy 55. This treatment <br />facility would remove some of the nitrates from the water pumped <br />from Well #3 (State and 6th St.) and Well #5 (Hwy 55 adjacent to <br />the ground storage tank). The maximum contaminant level for <br /> <br /> <br />- <br />ern' OF HASTINGS <br />