From AP - News Headlines -

Report Cites Spike in Atrazine Level in Danville Water, Utility Disagrees

The water utility for the city of Danville takes issue with an advocacy group's report that consumers may be subject to higher-than-allowable traces of a farm chemical.

The report from the Natural Resources Defense Council cited government figures suggesting Danville's water supply had exceeded standards for the herbicide atrazine.

But Kevin Culver, a compliance officer with Aqua Illinois, says the NRDC's numbers are from 2004, and since then, recent EPA tests found no detectable levels of atrazine. However, Culver says atrazine is a concern since Danville's drinking water source, Lake Vermilion, includes lots of farm runoff. He says the utility filters out the chemical with a simple process.

"It's actually the same component in your home water systems that they say to use, and one of the recommendations is activated carbon to remove it at home," Culver said. So it's the same type stuff, although we use a lot more of it during the growing season."

Chemicals like atrazine have been linked to birth defects and hormone disruptions in animals, though the federal Centers for Disease Control has not found the same effects on humans.