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City of Pocatello News

Posted on: May 2, 2019

Water System Flushing Starts May 6 in Pocatello

Fire Hydrant

Starting next week, residents may see water flowing from Pocatello’s fire hydrants.  

Monday, May 6 will mark the start of the City of Pocatello Water Department’s annual water system flushing efforts. During the process, workers open the valves on fire hydrants around the city allowing water to remove any build-up of material in water pipes.

“We’re able to accomplish several things with our yearly system flush,” said Justin Armstrong, Water Department Superintendent. “First, it helps to clear any sediment build-up within the pipes to ensure residents are receiving high-quality water. Second, it allows us to verify the condition and proper operation of fire hydrants. Last, it also helps us identify any inefficiencies within the system.”

During the system flush, residents may notice a temporary drop in their water pressure. Also, water may be rust-colored or cloudy but Armstrong says the discolored water is not harmful and will clear up in a few hours.

Officials ask that if you see a crew flushing a hydrant on your street, avoid running tap water and using a washing machine or dishwasher until the flushing is complete. Additionally, they ask drivers to please treat the crew like any other road work personnel and drive carefully. 

The flushing process will take about three weeks but due to unforeseen circumstances, the schedule may be altered or extended.

The City of Pocatello Water Department operates and maintains 278 miles of water lines, 21 water supply wells, 16 water storage tanks, 12 booster pumping stations and 42 pressure reducing valves.

For more information on the City of Pocatello Water Department, visit

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