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The city of St. Charles hydrant flushing begins April 1 and continues through May 3.
Hydrant flushing could temporarily cause water discoloration, even in homes outside the flushing area. The discoloration is caused by minerals that get stirred up in the water mains, according to a news release from the city.
Public Works performs hydrant flushing as part of the regular maintenance to the city’s water distribution system. Flushing water through the mains helps reduce mineral buildup and ensures the hydrants are ready for emergency use, according to the release.
The city website has a list of frequently asked questions about hydrant flushing.
St. Charles is divided into zones for hydrant flushing. Main Street (Illinois Route 64) divides the north/south areas. The Fox River divides the east/west areas. Outer zones are northwest, southwest, northeast and southeast. Inner zones are River Valley east and west.
Hydrant flushing schedule:
• River Valley east and west: Monday, April 1, through Friday, April 5
• Northwest and southwest: Monday, April 8, through Friday, April 12
• Southeast and southwest: Monday, April 15, through Friday, April 19
• Northeast: Monday, April 22, through Friday, May 3
Signs announcing hydrant flushing will be posted in affected neighborhoods. Flushing may start as early as 5 a.m. and continue through 4 p.m.
Water is safe to use and consume during hydrant flushing. However, water temporarily may be rust colored.
During hydrant flushing, limit water use, if possible. If water appears discolored, wait until flushing has subsided and then run the cold water tap in a bathtub or utility sink until it runs clear or in 10-minute increments, according to the release.
Rust-colored water is safe, but it may stain laundry. If this happens, keep clothes wet and treat them with stain remover, according to the release.
The city offers stain remover at no cost to residents at the Public Works facility at 1405 S. Seventh Ave. and at City Hall’s reception desk. City Hall is at 2 E. Main St.