Routine Watermain Flushing Begins May 4

Peterborough, ON – Routine watermain flushing will take place in various areas of the city from Monday, May 4, 2026, to Friday, June 26, between 7:30 a.m. and 4:30 p.m.  

Routine watermain flushing is preventive maintenance that removes scale and sediment build up, helping to maintain water quality in the water distribution system. 

Following watermain flushing, tap water may be discoloured due to minor sediment in the system. The water will remain safe for consumption. To clear the water, run the cold water tap closest to the water meter for 10 to 15 minutes until it runs clear. If discolouration persists, wait one hour and repeat the process. 

For City of Peterborough Water Services inquiries, including discoloured water and watermain breaks on public property, call 705-748-9301, extension 1295, during regular business hours, Monday to Friday, 8:30 a.m. to 4:30 p.m. For after-hours emergencies, call 705-748-9300. 

For more information on water services, visit peterborough.ca/water.