From source to sink
Where Gatineau water comes from
A plain-language tour of the lakes, rivers, or wells that feed Gatineau, 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 Gatineau water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityGatineau
Municipal service area
- Source waterOttawa River (Rivière des Outaouais)
Source water
- Source waterRivière du Lièvre
Source water
- Treatment plantUsine d'Aylmer
Approximate pin near Gatineau (exact plant coordinates pending)
- Treatment plantUsine de Hull
Approximate pin near Gatineau (exact plant coordinates pending)
- Treatment plantUsine de Gatineau
Approximate pin near Gatineau (exact plant coordinates pending)
- Treatment plantUsine de Buckingham
Approximate pin near Gatineau (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Gatineau drinking water starts as surface water (rivers, lakes, or reservoirs). The named sources on the utility record are Ottawa River (Rivière des Outaouais), Rivière du Lièvre. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Gatineau uses more than one treatment plant (Usine d'Aylmer; Usine de Hull; Usine de Gatineau; Usine de Buckingham). Utilities often run plants in parallel so different neighbourhoods can be served, or so one plant can cover for another during maintenance. Usine d'Aylmer: Ottawa River intake; serves Aylmer sector. Usine de Hull: Ottawa River intake; serves Hull sector.
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Four largely independent production plants treat and distribute through sector aqueduct networks (city reports on the order of 1,400 km of watermains). Each plant has its own RPEP source-vulnerability assessment.
One detail that makes Gatineau water feel local: Buckingham/Masson-Angers is the outlier: Lièvre River instead of the Ottawa River that supplies Aylmer, Hull, and Gatineau sectors. 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
- Ottawa River (Rivière des Outaouais)
- Rivière du Lièvre
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Usine d'Aylmer
Ottawa River intake; serves Aylmer sector.
Usine de Hull
Ottawa River intake; serves Hull sector.
Usine de Gatineau
Ottawa River intake; largest sector plant; provincial-funded rehab/ozonation project underway.
Usine de Buckingham
Rivière du Lièvre intake; serves Buckingham and Masson-Angers.
How it reaches your street
Four largely independent production plants treat and distribute through sector aqueduct networks (city reports on the order of 1,400 km of watermains). Each plant has its own RPEP source-vulnerability assessment.