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Grading Lake Quality
Minnehaha Creek Watershed District monitors all 56 of its lakes and grades them in three areas; water clarity, algae growth, and total phosphorous. The lake grades are used to compare water quality although they are not considered trends due to a number of factors that impact the lake’s grade, such as the amount of rainfall.

Higher than normal precipitation can often result in more runoff, contributing pollution to area streams and lakes. Options for citizens to help maintain or improve the lake’s performance include, installing rain gardens, pervious pavers, and rain barrels. These help prevent the excessive runoff.

Filtering runoff also helps reduce the nutrient levels in lakes. This is done by planting native plants along shorelines and stream banks. These plantings also prevent erosion and deter geese which prefer mown grass adjacent to water.

Read the full article to see the grades and other ways to protect area lakes and streams open the full article.

 
 


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