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Reshanau Lake Management Plan I) Conduct intensive lake- monitoring program in 2005 to inventory current conditions and propose specific strategies to mitigate problems. This monitoring will include in -lake water chemistry, stream flows and chemistry and lake SAV maps during June and August. This data will be needed to get an approved lake management plan to the MN DNR to implement a chemical treatment application for SAV beyond the 15 % allowed under State law. 2) Early in 2005, contract with a commercial fisherman to harvest the rough fish from Lake Reshanau and other Lakes in the watershed as determined by the Rice Creek Watershed District. The necessary permits have been secured and they are currently tying to locate the best location to conduct the harvest(s). The rough fish population in the Chain of lakes is high. These fish consume SAV and distribute phosphorus rich lake sediment into the water column during feeding activities. The suspended sediment reduces water clarity and increases available TP for algae growth. 3) Investigate the potential for placing a fish barrier on the outlet of the lake at west shadow Lake road. 4) Chemically treat the entire lake with a herbicide to kill the non - native curly leaf pondweed. Chemical treatment could begin in 2006 with annual applications occurring each spring through 2008 to treat the residual curlyleaf turions pending MN DNR approval of the Lake Management Plan. After three years the treatments should be reconsidered in the hope that native vegetation will have re- established itself and that the curly leaf pondweed will have diminished to a point that widespread commercial treatment will not be necessary. 5) Upon completion of the treatment for curly leaf pondweed and in conjunction with the algae bloom resulting from the decomposition of the curly leaf pondweed, we propose to commercially treat the algae with copper sulfate. 6) If the above lake management strategies are successful there is a potential for excessive growth of native vegetation. If growth of native plants reaches nuisance levels a separate management plan will be written in the future to address these issues. In 2005, begin a comprehensive plan to monitor the Lake to determine what impact these strategies are having on the existence of the non - native curly leaf pondweed, and the re- establishment of native aquatic vegetation. In addition, begin testing more specific measurements like phosphorus levels, chlorophyll, dissolved oxygen, and water clarity to quantify progress. G: \Admin \Board \Agenda Paks \2005 Agenda Paks \2005 -04 -13 \Reshanau mgmt plan.doc7