A coalition of communities in six Midwestern states filed a federal lawsuit Monday seeking to force the manufacturer of a widely-used herbicide to pay for its removal from drinking water.

Atrazine, a weed-killer sprayed primarily on cornfields, can run off into rivers and streams that supply municipal water systems. As the Huffington Post Investigative Fund reported in a  series of  articles last  fall, the U.S. Environmental Protection Agency failed to notify the public that atrazine had been found at levels above the federal safety limit in drinking water in at least four states.

The lawsuit was filed in U.S. District Court for the Southern District of Illinois by 16 cities in Kansas, Illinois, Indiana, Ohio, Missouri, and Iowa.  The communities allege that Swiss corporation Syngenta AG and its Delaware counterpart Syngenta Crop Protection, Inc. reaped billions of dollars from the sale of atrazine while local taxpayers were left with the financial burden of filtering the chemical from drinking water.

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