/DocumentCenter/View/12688Residents often ask why the Village flushes fire hydrants every year. The answer is that regular hydrant flushing is a vital part of routine maintenance for the water system for these important reasons:

• Improves water quality: Flushing removes minerals such as iron and magnesium that have collected in the water mains.
• Improves water flow: By removing these minerals, the inside diameter of a water main is increased and therefore allows a better flow of water.
• Hydrant maintenance: A fire hydrant is a mechanical device. The operation of a hydrant lubricates internal mechanisms and gaskets.
• Hydrant inspection: Any deficiencies are noted and repaired as necessary to ensure that each hydrant will perform when needed for an emergency.

2026 Annual Flushing Schedule

Starting Monday, August 24, through Thursday, September 10, the Water Division will be flushing hydrants throughout the Village. Flushing will occur between 6 a.m. and 2 p.m. Barricades will be placed in designated areas prior to flushing. Please do not wash laundry during flushing hours, as it may cause rust staining on clothing. Residents with water softeners are encouraged to check their softeners' cycle times to ensure the units do not regenerate during this period. The schedule for hydrant flushing by area will be as follows:

Cook County

Hydrant flushing will take place in Cook County as follows:

August 24, 25, 26
South of Irving Park Road, North of Lake Street,
West of Barrington Road

August 27, 28 
South of Irving Park Road and East of Barrington Road
(Hanover Highlands and Longmeadow South Areas)

September 1, 2, 3 
North of Irving Park Road

DUPAGE COUNTY

Hydrant flushing will take place in DuPage County as follows:

August 24, 25, 26, 27 
South of DuPage County Line, North of Stearns Road

September 1, 2, 3 
South of Stearns Road, North of Schick Road

September 4, 8, 9, 10
South of Schick Road

Additional Information

A copy of the map can be found at /DocumentCenter/View/12688.  Schedule is subject to change due to weather conditions or emergencies. In case you have any problems with water quality, please contact the Public Works Department during office hours.