From source to sink
Where Thunder Bay water comes from
A plain-language tour of the lakes, rivers, or wells that feed Thunder Bay, the plants that clean the water, and how it reaches kitchen taps. Lab grades for hardness, lead, and pH live on the water quality page.
On the map
Where Thunder Bay water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityThunder Bay
Municipal service area
- Source waterLake Superior
Source water
- Treatment plantBare Point Water Treatment Plant
Approximate pin near Thunder Bay (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Thunder Bay drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Lake Superior. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Water is cleaned at Bare Point Water Treatment Plant before it enters city pipes. City-owned plant on Lakeshore Drive / Bare Point. ZeeWeed membrane ultrafiltration and sodium hypochlorite disinfection. Operational capacity 113.5 million litres per day. Main intake roughly 730 m offshore at about 10 m depth; gravity feed into the plant.
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Single-source system delivering through eight pressure zones, seven pump stations, four reservoirs, and one standpipe across the city. Bare Point has been the sole municipal residential supply since major 2007 upgrades.
One detail that makes Thunder Bay water feel local: Thunder Bay drinks Lake Superior,one of the world’s largest freshwater lakes,through a membrane plant that replaced earlier treatment works dating to 1903. Lab grades for hardness, lead, and pH sit on the city water quality page; this overview is about the route the water travels.
Where it starts
Surface water
Rivers, lakes, or reservoirs, not underground wells as the main draw.
Research confidence: high
Named source waters
- Lake Superior
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Bare Point Water Treatment Plant
City-owned plant on Lakeshore Drive / Bare Point. ZeeWeed membrane ultrafiltration and sodium hypochlorite disinfection. Operational capacity 113.5 million litres per day. Main intake roughly 730 m offshore at about 10 m depth; gravity feed into the plant.
How it reaches your street
Single-source system delivering through eight pressure zones, seven pump stations, four reservoirs, and one standpipe across the city. Bare Point has been the sole municipal residential supply since major 2007 upgrades.