From source to sink
Where Lethbridge water comes from
A plain-language tour of the lakes, rivers, or wells that feed Lethbridge, 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 Lethbridge water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityLethbridge
Municipal service area
- Source waterOldman River
Source water
- Treatment plantLethbridge Water Treatment Plant
Approximate pin near Lethbridge (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Lethbridge drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Oldman River. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Water is cleaned at Lethbridge Water Treatment Plant before it enters city pipes. East bank of the Oldman River south of Whoop-Up Drive; conventional surface-water treatment (coagulation, sedimentation, filtration, disinfection). City states it does not use groundwater wells for the municipal supply.
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Plant produces tens of millions of litres per day on average for Lethbridge and regional customers; capacity upgrades are underway to raise maximum daily throughput for southern Alberta growth.
One detail that makes Lethbridge water feel local: City messaging explicitly contrasts the Oldman River surface supply with groundwater: Lethbridge’s municipal potable system is river-only. 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
- Oldman River
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Lethbridge Water Treatment Plant
East bank of the Oldman River south of Whoop-Up Drive; conventional surface-water treatment (coagulation, sedimentation, filtration, disinfection). City states it does not use groundwater wells for the municipal supply.
How it reaches your street
Plant produces tens of millions of litres per day on average for Lethbridge and regional customers; capacity upgrades are underway to raise maximum daily throughput for southern Alberta growth.