Mont-Laurier Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
river
pH Level
7.7
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
337.5 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: Health Canada Water Quality · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Mont-Laurier, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Mont-Laurier | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Mont-Laurier compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Mont-Laurier, Quebec | ≈ 120–179 mg/L | High | 🟠 Hard |
| Buckingham, Quebec | ≈ 0–60 mg/L | Medium | 🟢 Soft |
| Clarence-Rockland, Ontario | ≈ 120–179 mg/L | High | 🟠 Hard |
| Cantley, Quebec | ≈ 120–179 mg/L | High | 🟠 Hard |
| Templeton-Est, Quebec | ≈ 0–60 mg/L | Medium | 🟢 Soft |
National Benchmark
How Mont-Laurier compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Mont-Laurier | ≈ 120–179 mg/L | 🟠 Moderate |
| Canada National Avg | 140 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Mont-Laurier's Water Unique?
Local geology and source profile
The Ville de Mont-Laurier supplies water to roughly 14,000 residents in the Laurentides region of Quebec, Canada. This mixed supply primarily draws from surface water sources like the Lièvre River and adjacent lakes within the Ottawa River basin. Water treatment takes place at the municipal plant, employing filtration, disinfection, and coagulation to meet provincial standards. The system serves the main urban area and surrounding hamlets, drawing its origin from the Lièvre River watershed, a part of the larger Canadian Shield.
The underlying geology is characteristic of the Canadian Shield, dominated by Precambrian Grenville Province rocks such as gneiss, granite, and anorthosite. Weathering of these formations, along with glacial deposits, releases alkaline earth metals. This process, combined with ion exchange in fractured bedrock and soils, results in a moderately mineralized to hard water supply, typical for this region.
Homeowners in Mont-Laurier may notice limescale buildup affecting pipes, water heaters, and fixtures, potentially reducing water heater efficiency by up to 30% and shortening appliance lifespan. Items like kettles, dishwashers, and washing machines are particularly susceptible, and soap scum or spots on glassware can be common. To combat these effects, regular descaling with vinegar or the installation of a water softener is often recommended to protect plumbing and improve cleaning effectiveness. Seasonal variations in hardness are also noted, with runoff sometimes impacting mineral content.
Geology & Source: Laurentian Shield Precambrian bedrock; anorthosite, gneiss, granite; glacial till and thin soils pick up calcium and magnesium, imparting hardness
Other Quebec Water Reports
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