Minutes - Public Works Committee - 11/20/2012

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Councilmember Elvig noted there are electrolysis and sand issueswith this 20+ year old welland he would like to know if there are other options with new technology. Utilities Supervisor Nelsonstated in 2013 he will bring forward a case to addresses thatoption. He described the equipment and motor controlsand that a soft start drivewillbe used to softly startthe motor and then rampit up to 1,400gallons a minute. Utilities Supervisor Nelson stated he would like Wells #3 and #4 to have a variable frequency drive to slow down the frequency of the motor to pump 850 gallons per minute without using so much electricity. He explained that when Well #4 comes on, it draws up 1,400 gallons a minute,which stirs up sand. E.H.Renner has said if the motor starts slowerat 850 gallons a minute, it will not stir up the sand and the motor can then be ramped up toget 1,000 to 1,400 gallons per minute without the sandproblem. Councilmember Elvig stated the electrolysis is accelerated when pulling sand so he would rather do it the right way now instead of waiting until the 12 months for warranty runs out. Utilities Supervisor Nelson stated the well was televised when itwas new and after they pulled the pump. One spot was found where sand was coming into the well. However, the well is only one foot more shallow today than it was in 1998, which is excellent. He advised that all new municipal wells have variable frequency drives and also receives a discount on the electric bill. Motion by Councilmember Elvig, seconded by Councilmember McGlone, to recommend that the City Council award the written quote of E.H.Renner in the amount of $18,843.00 for all parts and labor necessary to repair the pump bowls, replace all drop pipe, check valve including installation and start up assistance, and the written quote of Submersible Motor Engineering USA in the amount of $10,983.00 for all parts and labor to make all necessary repairs to the 150 HP Hitachi 12-inch pump motor including testing and a 12-month warranty. Motion carried. Voting Yes: Chairperson Backous, Councilmembers Elvig, and McGlone. Voting No: None. Councilmember Elvig stated he would like staff to get quotes on new technology for this well. Interim Engineer Nelson stated he will bring that information back in January of 2013. 5.02:Consider Proposal –Highway 47 and CSAH 116 IntersectionStudy Interim Engineer Nelson reviewed the staff report and recommendation to accept the proposal of WSB in the amount of $24,082 for the Highway 47 and CSAH 116 intersection study plus an additional $3,840 for traffic counts contingent upon the City of Anoka agreeing to pay one-half of the costs. Councilmember McGlone indicated he would like the State to take the lead role and the City not spend $27,800 for a study. He felt the City had not done any due diligence to prod the State to take this over andhe was dissatisfied with WSB’swork in this project so he would not recommend giving them an un-bid project based on qualifications. Public Works Committee / November 20, 2012 Page 3of 8