Public Works started flushing in Zone 1 on Sept. 11: Click here for a Hydrant Flushing Map

To protect the City's water supply, all Cottage Grove water mains are flushed in the spring and fall.  

Public Works Department employees flush the water mains by opening each of the 1,300-plus fire hydrants in Cottage Grove. The sudden rush of water loosens and removes accumulated mineral deposits from the lines. 

This process can cause discoloration of your water in the home. The water is safe to drink, but it may stain fabrics if clothes are being washed at the time the water main is being flushed.  Check for signs of discoloration before using the water to wash clothes.

Public Works suggests that each homeowner flush out the taps in their home after or during the main flushing is done, since iron deposits tend to also build up in residential lines.  To flush your taps turn on all faucets in your home and run for 10 minutes or until the water runs clear.    

 

Spring and Fall Hydrant Flushing

To protect the City's water supply, all Cottage Grove water mains will be flushed in the spring and fall.   Public Works Department employees flush the water mains by opening each of the 1300-plus fire hydrants in Cottage Grove.  The sudden rush of water loosens and removes accumulated mineral deposits from the lines. This process often causes discoloration of your water in the home.  The water is safe to drink, but it may stain fabrics if you are washing clothes at the time the water main is being flushed.  Check for signs of discoloration before using the water to wash clothes.  The Public Works Department suggests that each homeowner flush out the taps in their home at the same time water main flushing is done, since iron deposits tend to also build up in residential lines. 

 

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