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Public Notice: Annual Sanitary Sewer Flushing Notice

Starting on October 6, 2025, until October 10, 2025, Foster Services will be conducting the annual sewer flushing program in Grey Highlands.  

This will include the sanitary sewers in Flesherton, Amik and on the east side of Markdale. Please be assured that no interruptions to individual sewer services are expected. Flushing activities are scheduled daily from 6:30 AM to 4:30 PM.  

The sewer truck is quite large, and its operation may produce noise that can be heard inside nearby homes. If your vent stacks are blocked or partially obstructed, air pressure may escape through toilets or sinks, potentially causing splashing or unusual sounds. 

Should you have any questions or concerns, please contact the Environmental Services Department at 519-986-1216 ext. 246. 

Contact Us

Municipality of Grey Highlands
PO Box 409
206 Toronto Street South
Markdale, ON
N0C 1H0

Phone: 519-986-2811
Toll free: 1-888-342-4059
Fax: 519-986-3643
Email: info@greyhighlands.ca

Hours of operation:

Monday to Friday
8:30 am - 4:30 pm

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