Rochester, MN (KROC-AM News) - If you happen to notice your tap water looks discolored, there’s a reason.

Rochester Public Utilities is now conducting fire hydrant flow testing around the city. It’s expected to continue up to three weeks.

RPU says the water main/hydrant flushing activities will be conducted primarily between 8 am and 3 pm Monday through Friday. RPU says customers may notice decreased water pressure or discoloration of their water.

According to RPU:

"During this time, customers may notice episodes of decreased water pressure or discoloration of their water. Water discoloration results from temporary disturbances of the normal water flow within the piping network. These short-term changes in flow can stir up naturally occurring minerals and sediment that settle within the water mains."

RPU says discolored water is safe to drink although it may have additional taste and odor characteristics. RPU recommends customers consider storing water in their refrigerator for drinking use in the event they experience discolored water.

If discoloration does occur, customers should also try to refrain from using hot water (for washing laundry, etc.) and run their cold-water faucets until the water appears clear.

News Update: The Rochester City Council is seeking state funding for four projects.