MUNSTER, Ind. (AP) _ The utility that provides tap water for much of northwestern Indiana says its water supply from Lake Michigan doesn't face the same risk of algae troubles that hit Toledo, Ohio, over the weekend.

Indiana American Water says Lake Erie is more susceptible to agricultural and fertilizer runoff causing algae blooms because it is the shallowest of the five Great Lakes.

Indiana American spokesman Joe Loughmiller tells The Times of Munster (http://bit.ly/1kCDxH5 ) that the utility's two treatment plants in northwestern Indiana use a powdered activated carbon to lessen the taste and odor associated with the harmless type of algae that does occur in Lake Michigan.

Ohio officials are promising an extensive review of how Toledo's water supply became tainted with an algae-induced toxin. The city's drinking ban was lifted Monday.