Google Translate Disclaimer

Translation on this website is provided by Google Translate, a third-party automated translator tool. The Simcoe Muskoka District Health Unit assumes no responsibility for the accuracy of translations performed by Google Translate, or for any issues or damages resulting from its use.

simcoe and muskoka regions with health unit locations
print header


Inquiries from members of the media can be directed to [email protected] or

705-721-7520 ext. 8533.

Health unit lifts Boil Water Advisory for Cookstown

Jun 22, 2022
SIMCOE – The Boil Water Advisory issued for the Town of Cookstown on June 20, 2022 has been lifted by the Simcoe Muskoka District Health Unit (SMDHU).

SIMCOEThe Boil Water Advisory issued for the Town of Cookstown on June 20, 2022 has been lifted by the Simcoe Muskoka District Health Unit (SMDHU). Laboratory test results have confirmed that the water is free from contamination and is safe to drink.

As a precaution, residents and businesses in the affected area should take the following steps before using their water:

  • Run all cold faucets for a minimum of five minutes. If the water does not run clear after five minutes, visit the Town of Innisfil’s InnService website for more information. 
  • Run drinking water fountains for a minimum of five minutes.
  • Run all water softeners through a regeneration cycle.
  • Replace pre-filters and follow the manufacturer’s instructions for reverse osmosis units.
  • Replace water filters, as they are disposable and may be contaminated. This applies especially to carbon filters and others that are near the end of their life.
  • Drain and refill hot water heaters set below 45°C (113°F). Normal setting is 60°C (140°F).
  • Drain and flush all ice-making machines and soda fountain machines.
  • Flush, clean and sanitize appliances with water line connections (e.g., fridges with water and ice dispensers), following the manufacturer’s instructions.
  • Dispose of any ice made since June 20, 2022.
  • Large-volume users (for example, restaurants) may need to run cold water taps for a longer period of time on first use to ensure the water is not cloudy.

    Note: please consult the manufacturer or owner’s manual for detailed instructions on how to flush and disinfect ice or soda fountain machines and how to restart water treatment devices.

Any facilities that were closed as a result of the advisory can now reopen after taking the necessary precautions.

Dental offices are to follow the Royal College of Dental Surgeons of Ontario, Infection Prevention and Control Guidelines for boil water advisories.

For more information, visit or call Health Connection Monday to Friday, 8:30am-4:30pm at 705-721-7520 or 1-877-721-7520, ext. 8811 to speak with a public health inspector. 


Did you find what you were looking for today?
What did you like about this page?
How can we improve this page?

If you have any questions or concerns that require a response, please contact Health Connection directly.

Thanks for your feedback.
Failed to submit comment. Please try submitting again or contact us at the Health Unit.
Comment already submitted ...