The City of Thunder Bay’s Bare Point Water Treatment Plant receives the water we use every day from Lake Superior, processes it for safe use, and provides it through the City's extensive distribution system to our homes and businesses.

How it works

The Plant can provide up to 113.5 million litres of water per day, through eight pressure zones, seven pump stations, four reservoirs and one standpipe. It uses membrane ultra-filtration technology to filter the water and sodium hypochlorite for disinfection. Find out more about the plant:

Gravity-fed water

At Bare Point, gravity feeds raw water into the plant through a 1,350 mm diameter pipe, 1 km from the shoreline. Screens remove debris and particles from the raw water where it enters the plant.


The Treatment Plant was originally built in 1903 and expanded in 1978. In 2007, the plant underwent a comprehensive upgrade and now provides all the water for the City.

Changes to the City's drinking water system

For a summary of recent changes to the City's drinking water, see our Lead in Drinking Water webpage.

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