Original text in English, shown unchanged.
Chillicothe notifies residents of elevated contaminants in water supply
Recent testing of the Chillicothe Community Water System in Illinois detected elevated concentrations of two PFAS compounds (PFOS and PFHxS) significantly exceeding potable groundwater quality standards. PFOS was found at 33 parts per trillion (ppt) against a 4 ppt standard, and PFHxS at 40 ppt against a 10 ppt standard, prompting a required right-to-know notice for residents. The Illinois EPA recommends the use of a filtration system. Update (Yahoo News, 05.09.2026, 13:30): Testing occurred in August. Chillicothe's Mayor admitted communication about the contamination was inadequate following resident criticism of online-only notification. The city is now awaiting results from a second water sample.
- Location
- Chillicothe, Illinois
- Country
- 🇺🇸 USA
- Start
- 01/08/2026, 02:00
- End
- 30/09/2026, 07:18
- Event type
- Chemical contamination, Limit exceeded
- Status
- Status unconfirmed
- Region
- Illinois
- Last updated
Timeline
- · Alert first recorded
- · Start according to source
- · Automatically marked inactive
- · End according to source
- · Record last updated
Automatically closed
This advisory was automatically marked as resolved after 21 days without new official information. No official all-clear was issued. Please check with your local water utility for the current status.
What to do now
For this case the specific instructions of the official source apply. Please follow the details in the report and the guidance of your water utility.
Sources
This summary was generated automatically. For binding information consult the linked source.
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