Water Main Flushing Program

The City of White Rock’s annual Water Main Flushing Program aims at maintaining the City's water system.  Flushing operations will be carried out between 7:00 a.m. to 5:00 p.m., Monday through Friday, although this is subject to change.

All residences in the flushing area will receive a hand-delivered Notice to Residents a week prior. If you do not receive a notice we will not be flushing in your area at this time.

Current flushing zone: January 23, 2017, to January 27, 2017



Zone 9, which will be flushed from December 20, 2016 to December 22, 2016, includes all properties (in green) shown on this map. The coloured lines show the location of the water mains. Different colours indicate different water main sizes. All water mains shown on this map will be flushed at some point during December 20, 2016 to December 22, 2016. If you live within this zone, your house will only be affected by flushing for a few hours during the week indicated. Keep an eye on your street for signage with the exact time and date of the flushing. 

Information on water main flushing:

During flushing, residents may experience a drop in pressure or discolouration of their water. Any disruption should be of a short duration and should only occur while mains in the area are being flushed. The public will be encouraged to report the disruption by calling 604-541-2181 in cases where loss of water or drop in pressure that lasts for an extended period of time (after two or three hours).

What is flushing?

Flushing is a method of cleaning the water main pipes by forcing water through them at high speed and discharging it through hydrants, which are left open until the water runs clear. This fast-moving water flow scours and cleans out mineral deposits and sediment that have built up over time and settled at the bottom of the pipes.

Why are residents notified by the City of their flushing program?

Residents are notified during water main flushing because some may experience a temporary discolouration of water while the water main is being flushed. Any disruption should be short-lived. Residents and businesses along areas where flushing is scheduled to take place will be notified a week prior to flushing via letters delivered to local businesses and residents, along with signs that will be placed on the road side. So, please keep an eye out for those signs.

What to do and what not to do during water main flushing

  • Do not turn on your taps or flush your toilets. This could draw sediment into the water pipes on your property, water meter, hot water tank, and into water filters.
  • Turn off all time-delayed water-line appliances.

What to do if you experience a loss of water for a long period of time (after two or three hours)

If you experience a loss of water (over after two or three hours), please call 604-541-2181

Optional precautionary measure

  • Store a sufficient reserve of drinking water for use on the day of water main flushing.

When water main flushing is completed

  • Remove aerators (screens) from taps.
  • Turn on your cold water laundry tub tap (or the tap located nearest your property's water meter/shutoff) and let it run for a minimum of 10 minutes or until it runs clear.
  • Place the aerators back on taps.

For all frequently asked questions regarding the Water Main Flushing Program please visit www.whiterockcity.ca/mywaterFAQs