Everyone has a role to play
The Mitchell Lake Association is pursuing a three prong strategy to improve the lake water
quality.

  1. Improve the quality of “in-lake” water.  The Riley Purgatory Bluff Creek Watershed
    District has the lead responsibility for this initiative and is focused on reducing
    soluble phosphorous levels by eradicating two invasive plant species (Eurasian
    milfoil and Curly Leaf Pondweed) and then using a material called Alum to neutralize
    remaining phosphorous.                                                     

  1. Improve the quality of storm water run-off.  The City of Eden Prairie has the lead
    responsibility for this component. The goal is to reduce the levels of soluble
    phosphorous entering the lake through the storm water system (you may have
    noticed a series of pipes feeding water to the lake whenever it rains) through holding
    ponds and the like.

  1. Filter water flowing into lake providing natural buffers.  This is the responsibility of
    individual land owners and largely accomplished by “Lakeshore Restoration” using
    native plants.  See article below and Restoration page.
Mitchell Lake Clean-up Strategies
To have a long term impact on
clean water we need to clean the
water already in the lake as well
as the water flowing into the lake
Everyone has a role to play in helping improve the Mitchell Lake water quality.  Much of the
deterioration of the lake has progressed as a result of the increased building construction
around the lake over the past 2 decades.

For example, did you know?...

  • Water run-off from our lawns washes fertilizer and pesticides into the lake?  
    Managing and minimizing the water-flow into the lake from our lawns will help the
    lake tremendously.

  • Water run-off from our driveways and the street in front of our homes washes directly
    down the storm drains, straight into the lake.  The soap used to wash our cars and
    the oil and coolant from the leaks from our vehicles is toxic to the lake environment
    and washes straight into the lake.  Repairing our leaky vehicles and having them
    washed at professional cars washes that recycle their water is recommended.  
    Another option is to wash our cars on our lawns rather than the street or driveway for
    those who prefer not to have their vehicles professionally washed.

  • Do your rain gutters direct the run-off from your roof straight onto your driveway and
    onto the street?  Re-directing the gutter run-off of rain onto your lawn as a buffer or
    using rain barrels to capture the rain run off is recommended.  Nothing is better for
    landscaping and flowers than rainwater.


  • Do heavy rains collect in pools and puddles in your yard? The easiest way to help
    water infiltrate into the ground rather than run off into storm sewers is by creating a
    raingarden. Strategically place your raingarden on a site that will intercept water
    runoff. If constructed properly, the garden will drain the water within two days.   
    Information can be obtained on line at www.bluethumb.org
Mitchell Lake Association