COLLINSVILLE, Ill. - The City of Collinsville is now advising residents to filter their tap water before drinking or cooking after recent tests revealed rising levels of "forever chemicals" in the municipal water supply.

On Tuesday, the Collinsville City Council reported detectable levels of PFAS and PAS chemicals in its groundwater that exceeded recommended federal levels.

In April, the Illinois Environmental Protection Agency (EPA) issued a formal notice to Collinsville utility customers after lab testing found that certain PFAS compounds exceeded the state's potable groundwater standards. At the time, the city said "immediate steps" were taken to reduce PFAS levels in the drinking water supply to "acceptable levels."

Five months later, the city announced plans for a comprehensive PAS

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