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Deer Lake Association
A member of the Minnesota Lakes Association



For generations, Deer Lake water quality has served as a foundation for family life and lakeshore property values.  All property owners can unite around a goal to maintain and improve Deer Lake water quality.

Known as the “lake of changing colors” because of its blue and violet hues, Deer Lake now shows a trend toward green.  The Deer-Pokegama Study identifies phosphorus as the key element driving the ongoing greening of Deer Lake, serving as a nutrient for algae and undesirable weed growth.  Phosphorus enters Deer Lake via streams, septic systems, rainwater runoff, and shoreline erosion.       

Deer Lake is threatened by zebra mussels, starry stonewort, spiny water-flea, Eurasian milfoil, and other aquatic invasives (AIS).  AIS are not moved by waterfowl, turtles, or other wildlife.  Invasives are moved by us.  We move them from one lake or river to another, from infested to un-infested waters like Deer Lake, via boats, trailers, bilge, live well, bait water, fishing and other water gear, docks, lifts, swim-rafts and float-planes.  Infestation would harm family enjoyment of Deer Lake and decrease property values. 

DLA is working to arrest and reverse the decline of Deer Lake water quality by asking Deer Lake property owners to take action on the highest priority water quality threats.  Your individual action could make the difference.

DLA encourages you to take action on Invasives, Septics, and Shoreland, including rainwater runoff and shoreline erosion.  DLA will also be working with property owners to take direct action on streams. 


Property owners can help prevent Deer Lake from becoming infested by understanding how invasives are transported from one lake or river to another, then taking action to make sure you and your guests are not unwitting carriers.  



Learn more about how your septic system could be driving algae and undesirable weed growth in Deer Lake, and what you can do about it.  Is your septic system 20 years of age or older?  If so, DLA recommends that your system undergo a septic compliance inspection if you have not done so in the past 10 years.  Learn more here.



Learn more about the connection between rainwater runoff and shoreline erosion and water quality.  Learn how buffers, low berms, and natural shoreline erosion solutions can help.  

See also the many studies of water quality in Deer Lake found HERE.