Rochester Public Utilities | Blog

Hydrant flow testing to begin on July 8

Rochester Public Utilities (RPU) will be conducting hydrant flow testing beginning on Monday, July 8th.  Testing is expected to take up to three weeks.

The hydrant testing is required to evaluate pressure and flow throughout the water system as part of RPU’s long term system planning project. Water main/hydrant flushing activities will be conducted primarily between 8 am and 3 pm Monday through Friday.

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. In the event that RPU water crews notice discolored water during testing, they may extend the flushing duration to help clear the discoloration.

Discolored water is still safe to drink although it may have additional taste and odor characteristics. Additionally, during this three week period, RPU recommends customers store water in their refrigerators for drinking in the event they encounter discolored water. If water discoloration occurs, 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.

Daily flush areas will be available each morning through RPU Customer Relations.  In addition, if you have questions in regards to discolored water please contact RPU Customer Relations at 507.280.1500.

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 55,000 customers. Water customers number more than 40,000. RPU continually investigates innovative technologies to help customers realize the best value from the services they receive. Current initiatives include photovoltaic offerings, wind energy, energy and water efficient equipment, and electric vehicle charging.