News Summary

• Collinsville quality tests its water every two hours for chlorine and pH levels but testing for PFAS needs to be done by an outside lab because the equipment to run the tests is too expensive.
• The city’s PFAS problems are a relatively new — and mysterious — development.
• Last year, it shut down one of its six wells that draw groundwater from the American Bottoms aquifer, after water from that well showed high PFAS levels.
• But after its shutdown, PFAS could not be detected in treated water from the other active wells.