Water System Flushing Program

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What is flushing?
When will flushing be done in my neighborhood?
Why are we flushing?
How will you be affected?
If you are experiencing discolored water.

What is flushing?

Each spring, the Utilities Department begins its annual flushing program throughout the Town’s water system with emphasis on dead end water mains. The goal of this program is to ensure water quality is maintained at its optimal level. Flushing Hydrant Flushing is a process by which water is moved through a water pipe at a high velocity so that a scouring action is created. Water is then discharged through a hydrant which in turn removes any material build-up from the pipe. The material removed from this process is harmless and requires no special treatment.  Use of this flushing technique is critical to the maintenance of water quality and your water system.

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When will flushing be done in my neighborhood?

Flushing normally begins in the northeast quadrant of Town, and then proceeds to the southeast, northwest, and southwest quadrants, respectively.  Flushing will normally occur between the hours of 7:30 a.m. and 3:30 p.m.  A Public Notice is also published in the Leesburg Today newspaper prior to the start of flushing and for the entire duration of the program. 

Faucet

During and after flushing, water may appear discolored. If this occurs, we recommend that you wait a few hours and then open your cold water faucet for a few minutes to make sure that the water has cleared.  The Town regrets any inconvenience the flushing operation may cause. 

The Town has been conducting the annual springtime flushing program for over 14 years and the program has resulted in very few complaints.

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Why are we flushing?

Because water mains are sized to allow adequate and safe flows for fire protection, water typically is moving through the underground pipes at a low velocity. This slow movement allows minerals to deposit, build up, and accumulate in pipes over time.  The buildup can restrict water flow in the pipes and contributes to corrosion, water color problems, and inadequate fire flow.

Periodic flushing of water pipes removes the mineral deposits which helps maintain our Town's infrastructure by assuring consistent high quality water and superior firefighting capacity. The amount and cost of water used in flushing are a small price to pay compared to the benefits of assuring the quality of your water while maintaining the Town's infrastructure.

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How will you be affected?

You probably will not even be aware that flushing is taking place in your neighborhood. Flushing is generally conducted between 7:30 a.m. and 3:30 p.m., Monday through Friday. Select hydrants in each neighborhood will be opened for water pipe flushing. While the hydrants are open, the homes on that block may experience discolored water or a small drop in water pressure; however, your water service should not be interrupted. If you have no water pressure, please notify the Utilities Department at (703) 737-7075 as soon as possible.

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If you are experiencing discolored water. Water Glass

Should your water have a reddish, yellow or brown tint, do not be alarmed. It is recommended you do not use the water or do laundry for about two hours.  After you have waited, open your faucets for a few minutes to make sure the water is clear at which time you may resume normal water use.

If the water does not clear within a few hours, please notify the Utilities Department at (703) 737-7075.

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