To help ensure high quality, palatable drinking water, it’s necessary to keep treated water moving throughout the distribution system. Typically, the gravity system, water pumps and regular hydrant flushing program do this job well. In some areas, a little more help is needed to keep the water moving. Twice annually, Utilities Kingston flushes dead-end water mains.

This spring, this activity will take place from April 15 to May 13 (approximately). 

About dead-end flushing

​Dead-end flushing is a routine watermain maintenance technique used to bring fresh water into the area, and remove sediment that over ​time has built up in the pipes. The duration of each flush will vary, depending on water clarity/quality.

The flushed water is directed to the storm sewer and then ultimately Lake Ontario. To protect this important drinking water source, the water is dechlorinated before being discharged.

Some pooling of water in the immediate area is normal and not a cause for concern.

Location of dead-end flushing

Crews are flushing dead-end water mains in all areas of the city (east, central and west). Approximately 60 locations are involved.

Effects on tap water

 Dead-end flushing, as with other activities on the water distribution system, can disturb deposits that normally occur in water pipes. If you notice your tap water is brown or discoloured, please be assured the water is still safe.

Flush your pipes until the water is clear again.

1.     Locate the cold water tap that is closest to your water meter.
2.     Run the cold water until it is clear. This may take 5 – 25 minutes.
3.     If the water does not clear, please contact Utilities Kingston at 613-546-1181.

You may also notice temporary reduced water pressure while flushing takes place. Once the operators have completed their work, water pressure will return to normal.