For a city that was without water in 2014 due to water contaminated with microcystin, a potentially lethal toxin, when a section of the Maumee River in Toledo turned green from the potentially toxic algae, fears were renewed that another water crisis was at hand. White this time the city did not have to shut off the water, calls were increased to designate Lake Erie as "impaired" with the hope that Ohio and Michigan would further reduce the amount of algae-producing phosphorus pouring into the lake through connecting tributaries.
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