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The R/V Lake Guardian sails on behalf of the USEPA Great Lakes National Program Office, gathering environmental data to gauge the health of Great Lakes.

What's Happening?

The 2017 sampling season kicks off March 25 on Lake Michigan. See the full schedule here »

Read a great story about the Lake Guardian and Captain Mallard in the Illinois-Indiana Sea Grant newsroom »

Check out a social media recap of the 2016 Summer Survey »

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