City of St. Charles issued the following announcement on Aug. 6.
The Fire Department is performing an underground flush test Friday, August 7, 2020, from 9-10 a.m. at 2015 Marlowe Boulevard in Prairie Center. Sometimes these flushes result in rust-colored water. Water is safe to use but may stain laundry. Click for details https://www.stcharlesil.gov/documents/project-alerts
Original source can be found here.

Source: City of St. Charles

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