04-12-2006 Council Agenda - Laserfiche WebLink

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(4:41 254414, ceaznexe4, 515 Little Canada Road, Little Canada, MN 55117 -1600 (651) 766 -4029 / FAX: (651) 766 -4048 www.ei.little-canada.mn.us MEMORANDUM MAYOR Bill Blesener COUNCIL Jim LaValle Rick Montour Barbara Allan John Keis ADMINISTRATOR Joel R. Hanson To: Mayor Blesener & Members of City Council From: Bill Dircks, Public Works Superintendent Date: April 7, 2006 Re: Water Tower Inspection The city has had in its budget an item for repainting the water tower for the past couple of years. The tower still looks to be in decent shape so we haven't made the decision to paint it to this date However, it is now due for another inspection. It was last inspected in November 1999. I met with Mr. Shawn Mulhern of KLM Engineering to see how we should proceed. Mr. Mulhern and his company performed the last inspection and Mr. Mulhern was the engineer For AEC Engineering when the tower was repainted in 1990. It was Mr. Mulhern's opinion that the tower may still be in good enough shape to last a few more years. He said it should be inspected so that the interior of the tank could be evaluated to make sure it is still in good condition. Based on the information he had from the 1999 inspection, he didn't feel it was necessary to do a full float -down inspection. Technology has advanced to the point where they can put sterilized remote - controlled video equipment (ROV) into the tower to perform the inspection without emptying the tank. The city sought quotes for the project of inspecting the tower without doing a float -down of the water level. Quotes were received from KLM Engineering, Liquivision Technology, and TKDA Engineering. All quotes have been included for your perusal. KLM had a quote of $2800 for an inspection using an ROV. Liquivision Technology is a company from Oregon that called to ask if The City would like a quote. I gave them some very general information and they returned a quote of $2990 for a diver inspection. The price would decrease to $2490 if they were able to perform the work in one day. TKDA provided a quote of $2700 to perform an inspection using just a raft to inspect the high -water line where the ice does most of its damage in the winter. TKDA does not have the ability to use a diver or ROV inspection without renting one. The price would increase in that case. Due to the fact that KLM is known as an expert in tank inspection and Mr. Mulhern has been involved in past water tower projects in Little Canada, staff recommends accepting the quote from KLM Engineering to inspect the tower using an ROV for $2800. That fee