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Medicine Lake's water quality has degraded as a result of phosphorus loading.

We have begun a community experiment to assess the potential to reduce phosphorus levels in residential runoff entering Medicine Lake by restricting the use of lawn fertilizer containing phosphorus.

Use the links above to learn about the experiment in the Medicine Lake watershed, and how you can help protect your watershed health by making simple changes in your lawn care practices. The links below show how phosphorus enters a lake and take you directly to the Medicine Lake data.

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Remember, when you're fertilizing the lawn, you MAY NOT just be fertilizing the lawn!

Image courtesy of the Washington State Water Quality Consortium

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