What do mercury, cyanide, lead, ammonia, and benzo(a)pyrene have in common? These make up the 1.7 million pounds of pollutants that were dumped by U.S. Steel into Lake Michigan (via the Grand Calumet River) in 2005. A water discharge permit was recently proposed that may reduce or eliminate limits on heavy metals and toxic chemicals discharged by U.S. Steel into the Grand Calumet River, which flows into Lake Michigan.

The U.S. Environmental Protection Agency has raised numerous objections to the permit, which was blocked on October 1. One concern is that the permit may not sufficiently limit chromium, cadmium, silver, cyanide and other chemicals to meet water quality standards for Indiana.

This is the second uproar in recent months about pollutants in Lake Michigan after BP was issued a permit for its $3 billion expansion of the Whitting, IN refinery. This expansion would allow the refinery to handle large quantities of Alberta Tar Sands crude, and comes with a high environmental price tag for Lake Michigan, such as a 54% increase in ammonia and 35% increase in sludge particles being released. This permit was the first to be issued in years that would increase the amount of pollution that a company is allowed to emit into Lake Michigan by finding a loophole in the Clean Water Act.

Chicagoans were particularly alarmed by these plans because their drinking water intake is located just a few miles from the Whiting refinery discharge. Many area residents responded by signing petitions, participating in demonstrations and a boycotting BP products. The message was heard loud and clear. The company later announced that it would not increase discharge into the lake, and would investigate pollution control technologies.

Despite this announcement, the permit remains on the books and could set a lower standard for future discharge permits. This series of events does, however, demonstrate the influence that private citizens and politicians can have over the actions of corporations when government standards seem to be satisfactory. Recent threats to the water quality of Lake Michigan serve as a reminder of the importance of the lake, which is the largest freshwater lake in the United States.

Chicago Tribune: Indiana Giving Lake Polluter a Break

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