High River: Unidirectional Flushing of Water Mains to Begin in Hampton Hills and Montrose

HIGH RIVER, AB: The Town of High River Utilities Department will be performing Unidirectional Flushing (UDF) of water mains between July 4, 2016 to September 31, 2016 in the Montrose and Hampton Hills areas of town. The work will take approximately three months to complete.

Flushing will be conducted Monday through Friday and signs will be posted indicating water flushing is occurring in your area. Please avoid using water if possible while the signs are displayed. Should you have additional questions or problems, please contact Operations at 403-652-4657.

What is Unidirectional Flushing?

Unidirectional Flushing (UDF) is a method of cleaning the water mains through a network of flushing sequences with the water being discharged from fire hydrants. UDF involves closing valves in a specific sequence to create water movement in one direction while opening specific fire hydrants at the end of that sequence. The UDF technique allows higher water flow velocities by isolating certain sections of water mains. Flushing pipes at higher velocities will dislodge and remove mineral deposits and sediment that accumulate in the water mains.

How will I be affected?

Most customers will not notice any changes to their water delivery during the UDF process. In some cases, however, homes may experience a temporary drop in water pressure and/or discoloured water. Customers should not experience an interruption in water service during the flushing process.

What if my water is discoloured?

Due to varying velocities and flow rates in the water system, customers may experience a slight discolouration in their water, which at times is unavoidable. Under most circumstances, you can run your faucets for a short time after the flushing is completed and the water should clear at your residence. The discoloured water does not pose a health hazard; however, iron (red water) and manganese (black water) may be stirred up within the water system during the flushing procedures. When the discoloured water is present, it is recommended that you stop laundry to avoid any chance of staining clothes. We apologize for any inconvenience this may cause you.