From source to sink
Where Portage la Prairie water comes from
A plain-language tour of the lakes, rivers, or wells that feed Portage la Prairie, 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 Portage la Prairie water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityPortage la Prairie
Municipal service area
- Source waterAssiniboine River
Source water
- Treatment plantPortage la Prairie Water Treatment Plant (Yellowquill Trail)
Approximate pin near Portage la Prairie (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Portage la Prairie drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Assiniboine River. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Water is cleaned at Portage la Prairie Water Treatment Plant (Yellowquill Trail) before it enters city pipes. Conventional lime-softening plant with Actiflo pre-clarification, ozonation, dual-media / biologically activated filtration, GAC polishing, CO₂ pH adjustment, chlorine. Design ~34 ML/d net; expansion planned.
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Serves ~16,000 residents plus Yellowhead and Cartier regional co-ops and major food processors (McCain, Simplot, Roquette). McKay Reservoir and pump station in system.
One detail that makes Portage la Prairie water feel local: Intake sits upstream of the Portage Diversion / Assiniboine River Control Structure,river water that can originate as far as Alberta and North Dakota. 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
- Assiniboine River
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Portage la Prairie Water Treatment Plant (Yellowquill Trail)
Conventional lime-softening plant with Actiflo pre-clarification, ozonation, dual-media / biologically activated filtration, GAC polishing, CO₂ pH adjustment, chlorine. Design ~34 ML/d net; expansion planned.
How it reaches your street
Serves ~16,000 residents plus Yellowhead and Cartier regional co-ops and major food processors (McCain, Simplot, Roquette). McKay Reservoir and pump station in system.