From source to sink
Where Oakville water comes from
A plain-language tour of the lakes, rivers, or wells that feed Oakville, 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 Oakville water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityOakville
Municipal service area
- Source waterLake Ontario
Source water
- Treatment plantOakville Water Treatment Plant
Approximate pin near Oakville (exact plant coordinates pending)
- Treatment plantBurloak Water Treatment Plant
Approximate pin near Oakville (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Oakville drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Lake Ontario. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Oakville uses more than one treatment plant (Oakville Water Treatment Plant; Burloak Water Treatment Plant). Utilities often run plants in parallel so different neighbourhoods can be served, or so one plant can cover for another during maintenance. Oakville Water Treatment Plant: Halton Region conventional filtration plant at 21 Kerr Street; sand-ballasted clarification. Rated capacity on the order of 109 ML/d. Burloak Water Treatment Plant: Halton Region membrane plant at 3380 Rebecca Street, Oakville; flocculation, ultrafiltration, optional UV, ozonation, fluoridation, and chlorination.
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Treated water enters the interconnected Halton Region Distribution Subsystem (South Halton), which also serves Burlington and parts of Milton and Halton Hills.
One detail that makes Oakville water feel local: Burloak is a membrane/ozone plant on the Oakville-Burlington boundary, giving Halton a second Lake Ontario plant besides the older Oakville and Burlington conventional plants. 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 Ontario
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Oakville Water Treatment Plant
Halton Region conventional filtration plant at 21 Kerr Street; sand-ballasted clarification. Rated capacity on the order of 109 ML/d.
Burloak Water Treatment Plant
Halton Region membrane plant at 3380 Rebecca Street, Oakville; flocculation, ultrafiltration, optional UV, ozonation, fluoridation, and chlorination.
How it reaches your street
Treated water enters the interconnected Halton Region Distribution Subsystem (South Halton), which also serves Burlington and parts of Milton and Halton Hills.