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Way a Std. Wanala <br />515 Little Canada Road, Little Canada, MN 55117 -1600 <br />(651) 766 -4029 / FAX: (651) 766 -4048 <br />www.ci.litde-canada.mn.us <br />MEMORANDUM <br />TO: Mayor Blesener & Members of City Council <br />FROM: Bill Dircks, Public Works Superintendent <br />DATE: April 4, 2008 <br />RE: Savage Lake <br />MAYOR <br />13111 Blesener <br />COUNCIL <br />Rick Montour <br />Barbara Allan <br />John xeis <br />Michael McGraw <br />ADMINISTRATOR <br />Joel R. Hanson <br />I spoke with Cliff Aichinger from the Ramsey Washington Metro Watershed District and <br />he provided the following information: <br />1. Mr. Waite's claim that the lake has been filling up with sediment is not true and if <br />it were the case there would be serious buildup of sediment at the storm sewer <br />outlets to the lake. The sediment deltas present at outlets do not support Mr. <br />Waite's claim. <br />2. There would not be any benefit received from cleaning out the wetland at the <br />northeast intersection of Demont and Jackson. This would simply allow the <br />sediment entering the system to travel further toward Savage Lake and increase its <br />chances of settling out in the lake itself. The vegetation that has developed in the <br />wetland is acting as a filter for the sediment. <br />3. The level of Savage Lake has dropped over the years. The level was artificially <br />high because of a gate at the outlet near Little Canada Road. A resident was <br />controlling the level with a gate and when the gate was no longer used the lake <br />level rose to a depth that was not natural. The Watershed District installed a new <br />outlet a few years ago and set it at the ordinary high water level for the lake. This <br />caused the level to drop to its natural depth. <br />4. The residents of the lake inquired about water lily removal last year and it was <br />determined that they could apply for a permit from the DNR for vegetation <br />removal in the lake. This could help manage that issue. <br />5. The fact that the City no longer uses sand as part of its de -icing operations will <br />also benefit the lake and eliminate much of the future sediment that could have <br />been conveyed to the lake. <br />6. It was Mr. Aichinger's opinion that a rain garden at the top of the hill at the corner <br />of Lakeshore and Old County Road C would be the best option to help improve <br />02 <br />