Water Services

Water Services

The safety and quality of municipal tap water is a provincial and municipal responsibility.

Our drinking water is very, very safe. The Town's licensed water Operators ensure the high quality standard for our drinking water adheres to all Provincial Regulations as legally enforced by the Province of Ontario. For more information please visit their website at https://www.ontario.ca/page/drinking-water.

The Blue Mountains' water consistently meets all Ontario Drinking Water Standard. The regulation focuses on treating and testing drinking water and mandates public access to information and notification of adverse results. In accordance with Ontario Regulation 170/03 (11) under the Safe Drinking Water Act, 2002, our most recent Annual Report is available in the documents section of this webpage. To learn more about our drinking water sampling program, please visit the Town Hall at 32 Mill Street, Thornbury.



The Thornbury Water Treatment Plant (WTP) is owned by The Corporation of the Town of The Blue Mountains and is operated by employees of the Town. The Thornbury WTP is classified as a Large Municipal Residential System.

The Thornbury WTP supplies water to The Blue Mountains, which consists of the former Town of Thornbury and the former Collingwood Township. The existing Thornbury WTP was originally constructed in 1977 and 1978 with the plant put into service in 1978.

The Thornbury WTP has the following components: intake, low lift pumping facilities, 3 membrane trains, a clearwell for storage, high lift pumps, gas chlorine disinfection, a backwash wastewater system, and ultraviolet disinfection.

In 2008 the Thornbury WTP was upgraded to replace the existing conventional filters with microfiltration membrane units to restore the rated capacity to 13,536 m3/d.

A supplemental water supply is received from the Town of Collingwood through the Mountain Road Booster Station.

If you would like to learn more about your drinking water or would like to have your drinking water tested by one of our licensed Operators, please contact (519) 599-5287 for more information.


The distribution system consists of approximately 120 kilometers of water main ranging in size up to 400mm. Water main materials consist of PVC, ductile iron, cast iron, asbestos cement and high-density polyethylene.

Distribution facilities consist of an elevated tank, 4 booster stations, 2 above ground reservoirs complete with booster stations, 2 above ground reservoirs and 1 standpipe.

Source Water Protection

For information on Source Water Protection, please visit the Saugeen Conservation website at www.svca.on.ca/water-swp.htm.

Preventing Frozen Water Lines

Due to ongoing cold temperatures, the Town of The Blue Mountains is reminding municipal water users to take voluntary measures to minimize the chances of experiencing frozen water pipes. To reduce the chances of your pipes freezing, please consider the following:

Winterize Outside Faucets:

Ensure that you’ve properly drained all outside water pipes/hose faucets using shut off valves to bleed out water remaining in the line, look around the home, for areas where your water lines may be vulnerable due to a lack of insulation or heating such as in basements, attics, garages and crawl spaces. The water lines serving or running through these areas are at risk and should be insulated to avoid freezing.

Insulate Pipes:

As an economical option, homeowners can wrap towels around the pipes to provide insulation; there are also several products on the market that can be used to help avoid the freezing of pipes, which should be handled by a plumbing professional to ensure efficiency and safety.

Look for Cold Drafts:

Check around your home for areas where water supply lines are in unheated areas and take measures to prevent the flow of cold air into these areas. Common locations include: basement, crawl space, attic, garage, and under kitchen and bathroom cabinets. Keep bathroom and kitchen cabinet doors open to enable warm air to circulate more freely in the home, thereby reducing the possibility of pipes freezing. Areas adjacent to outside wall are most at risk.

Consider Leaving Your Water Running:

You can run your fixtures at a very slight trickle as the temperature of the constantly running trickle is above freezing. You may also consider flushing your taps for 3 – 4 minutes several times a day instead of leaving the water running continuously. This will help prevent pipes from freezing in extreme cold temperatures. However, please note that the Town will not credit this type of water use.

Be Prepared When Travelling:

Leaving during winter? Keep your thermostat set at 15 degrees or higher, and have someone check your house regularly.

Find Your Water Shut Off Valve:

Determine where your water shut-off valve is in your house and learn how to use it. For most homes the shut-off valve is located near the water meter at the point where the water line comes into your home, which usually in your basement.

If your water service does freeze, immediately notify a licensed plumber and, if required, the Town’s Water Section by calling the 24 hour Emergency Water Pager number: 705-446-5853

Hydrant Maintenance

Every Spring and Fall, Water Operators flush Town fire hydrants and watermains to ensure proper fire hydrant operation and water quality throughout the water distribution system.

Minor water discolouration may occur periodically and can be rectified by letting faucets run until clear.

Lower pressure due to hydrant flushing may be experienced in some areas.

If you have any questions or require additional information, please contact: 

Town of The Blue Mountains
Water and Wastewater Operations
Administrative Assistant
519-599-3131 x284


Emergency Pager - Water

Water Department

Water & Wastewater Billing

Utility Account Coordinator
519-599-3131 x223

Water and Wastewater Inquiries

Water and Wastewater Inquiries
519-599-3131 x284

Water Supervisor

Water Supervisor
519-599-3131 x321


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All documents found on our website can be made available in other accessible formats where practicable and upon request.
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