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� 2003 as soon as the ice along the edge of the lake h d melted. Weekly water level readings and readings after significant rainfall events have been aken since that time. Water levels on Mooney Lake this spring remained below elevatio 989.0 until mid-May when water levels went up as a result of heavy rainfall received in the Tw' Cities area. Based on the water level reading taken today,the lake is now at an elevation of 989. ,which is about 10 inches below the established spring/summer target pumping elevatio of 990.0 feet. Water levels on the lake will continue to be monitored throughout the yeaz and t e MCWD and City of Plymouth are prepazed to initiate emergency pumping utilizing a tempor pumping system similaz to the one implemented last fall should lake levels reach the t get pumping elevations approved under the DNR pernut. �� The MCWD has also begun work on the emergenc pumping infrastructure study. Due to the occasional need to conduct emergency pumping an the relative high costs associated with constructing an intake structure and purchasing pu ps,it was deternvned by the MCWD, Hennepin County,and the local communities that a more feasible altemative would be to look into the possibility of installing a permanent electri al power supply and underground , conveyance pipes to accommodate future emergenc pumping. Once the permanent infrastructure system is in place and should emerge cy pumping be required,a dewatering contractor would be hired to install and operate sub ersible pumps placed in the lake, similar to those used last fall. Our engineers,Wenck Associates,Inc.,met with C' y of Plymouth staff last month to review potential pumping routes for a permanent system he study will evaluate three or four pumping routes and associated costs with installing the pe nent infrastructure system to provide flood protection. It is anticipated that the study will be c mpleted and presented to the MCWD Board of Managers later this month. Thank you for your patience and understanding as e work towards a solution to address the high water problems on Mooney Lake. Please feel ree to contact me at 952-471-0590 if you have any questions regarding this letter. Sincerely, . . on, A 'nist or � Minnehaha Creek Watershed District cc: Plymouth City Manager Medina City Manager Orono City Manager I MCWD Board of Managers � Commissioner Penny Steele � The Honorable Judy Johnson District Engineer T:V01&5�04�299VNooay-Resident l.etter 6�3-03.doc .