Water and wastewater services during power outages

What happens to water services if there is a power outage? Will there be water on the tap? Can I use the toilet?

Water utilities recommend that you use as little water as possible when there is no power. Although a short power outage does usually not affect water distribution, disposing of wastewater may become a problem. The general guideline is: Avoid having a shower or running any water into the sewer during a power outage. Wait for the power to come back on before flushing the toilet.

If tap water is still available during a power outage and the water utility has not reported a quality defect, you can use it as domestic water. However, the water may contain mineral deposits or have an unusual colour because of changes in water flows. The water will improve if you let it run for a while. Water pressure may also be lower than usual, particularly in properties located on high ground where you may only get a small trickle of water. If the power outage lasts for a long time, the area may be left completely without water. Consequently, it is important that you keep enough water at home to meet your own needs.

A power outage has a significant impact on wastewater services: even a short outage stops most wastewater pumping stations. This may result in overflows in which wastewater ends up in the terrain or in water bodies. A prolonged power outage may also compromise the operation of wastewater treatment plants.

Prepare for interruptions in water supply caused by power outages:

Always keep a few litres of shop-bought bottled water at home. It will remain drinkable for a long time.
When there is a threat of a power outage, you should additionally fill clean containers or bottles with water.
In the event of a long power outage, the water utility will make arrangements for water distribution. Make sure you have containers with lids at home for fetching water.
Read the instructions issued by the rescue services regarding 72-hour emergency supplies.

Keep an eye on bulletins and instructions issued by your water utility or municipality on their websites.

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