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<br /> <br />MEMORANDUM <br /> <br />DATE: <br /> <br />May 7, 2008 <br /> <br />TO: <br /> <br />Mayor and City Council <br />Jim Willis, Interim City Administrator <br /> <br />FROM: <br /> <br />Greg Hoag, Public Works Director <br />Kristine Giga, Civil Engineer <br /> <br />SUBJECT: <br /> <br />Inflow and Infiltration (1&1) update <br /> <br />BACKGROUND <br /> <br />On March 31, 2008, staff presented the City Council with the Inflow and Infiltration (1&1) report <br />prepared by Bonestroo, which discussed initial results of the study and recommended next steps. <br />Staff presented a work plan and requested approval of additional study on April 14, 2008. The <br />City Council requested additional information for the 2008 work plan; at this time, staff is <br />providing an update. <br /> <br />DISCUSSION <br /> <br />Additional studv in prOl!ress: <br /> <br />Lift station calibration <br />Public Works staff is in the process of calibrating the fourteen lift stations (establishing pump <br />cycle times) so that the daily flow data retrieved can be better evaluated. This process takes <br />about 1.5 hours per lift station; we expect to complete this in the next two weeks. Pump station <br />monitors have been installed at Lift Stations 11 and 13 to further break down the metershed to <br />MCES meter 059 ( on West Round Lake Road). <br /> <br />Temporarv flow meters <br />Two flow meters will be installed Wednesday, May 14. We anticipate the meters will be in <br />place for four to six weeks, depending on the weather. The meters need to monitor "normal <br /> <br />C:\Documents and Settings~ackie.freppert\Local Settings\Temporary Internet Files\OLKDl \5-12-08Memoll.doc <br />