Drinking Water Treatment & Distribution

Take a Tour During Drinking Water Week

The City is fortunate to have access to two sources of drinking water: groundwater from a deep aquifer and surface water from Kempenfelt Bay. Before reaching the consumer this water is treated to protect public health.

Drinking Water Sources

The source of the water that comes out of your tap depends on where you live in Barrie. Groundwater comes from groundwater that is extracted from the ground by municipal wells. Surface water is obtained from Kempenfelt Bay through an intake pipe. Access the interactive Water Supply Zones map to determine the source of water you receive.

Water Treatment Processes

Treatment of water depends on its source. Groundwater is naturally filtered through layers of rocky sediment and therefore requires less treatment than surface water. 

Take a tour of Barrie's Surface Water Treatment Plant! Get tour details.

Water Distribution Infrastructure Maintenance

The City ensures that the infrastructure which directs water to your home is regularly ​maintained. As such, the distribution system, consisting of approximately 4,000 hydrants and 672 km of watermain, continues to reliably direct potable water to the community.​

Water Meters & Shut-Off Valves

Every customer connected to Barrie's municipal drinking water system is equipped with a water meter and internal shut-off valve. Please ensure your water meter and shut-off valve are always accessible, ready for use in case of an emergency. See full details about water meters and shut-off valves.

Prevent Backflow at Home

Backflow preventers installed on your water outlets ensure that water flows in ONE direction. Through unprotected plumbing connections—such as a lawn irrigations system or hose connections—reverse flow can cause contaminants and pollutants to enter your drinking water system. The Backflow Prevention and Cross Connection Control By-law applies to all industrial, commercial, institutional, and multi-unit residential properties.


Every year the City prepares reports in accordance with Safe Drinking Water Act regulations:

Hard copies of either ​document can be obtained under request at the Branch Administration Building, 20 Royal Parkside Drive, during normal business hours (8:30am–4:30pm, Monday–Friday)

Bulk Water Requests

The City's Water Operations Branch staff are available to assist residents and contractors with obtaining water in bulk supply.

Frequently Asked Questions


Service Requests