4. Lake Michigan
Lake Michigan is the most dangerous of the Great Lakes. An average of six people per year are drowned by strong lake currents, and a total of 20 have drowned in the lake so far in 2015 — Lake Erie is second again with 12 total drowning deaths in 2015. A number of Superfund sites have existed along the lake, especially the industrial lakefront of the greater Chicagoland area. Ten million people rely on Lake Michigan for drinking water.
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