Joliette Water Hardness & Quality Report (2026)
Water Hardness
~60–119 mg/L
Moderately Hardestimated · not lab-verified
Source
river
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
165.4 mg/L
Est. Daily Cost
$0.24
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 Joliette, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Joliette | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.5 yrs | 8.5 yrs | -12% |
| Washing Machine | 10.6 yrs | 12 yrs | -12% |
| Water Heater | 13.2 yrs | 15 yrs | -12% |
Regional Water Comparison
How Joliette compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Joliette, Quebec | ≈ 60–119 mg/L | Medium | 🟡 Moderately Hard |
| Saint-Charles-Borromée, Quebec | ≈ 0–60 mg/L | Medium | 🟢 Soft |
| L'Assomption, Quebec | 59 mg/L | Low | 🟢 Soft |
| Repentigny, Quebec | ≈ 60–120 mg/L | Medium | 🟡 Moderately Hard |
| Sorel-Tracy, Quebec | ≈ 60–120 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Joliette compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Joliette | ≈ 60–119 mg/L | 🟡 Low |
| Canada National Avg | 140 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Joliette's Water Unique?
Local geology and source profile
The municipal water supply for Joliette, Quebec, is managed by the Ville de Joliette, serving the city and surrounding areas in the Lanaudière region. While specific treatment plant names and detailed reservoir or aquifer information aren't readily available, the water originates from local watersheds within the Laurentides region. This supply is influenced by the region's geology, drawing from Precambrian Shield bedrock that includes granitic and metamorphic formations from the Archean and Proterozoic eras.
The underlying geology of Joliette's water sources is characterized by Precambrian Shield bedrock, featuring granitic and metamorphic formations. Fractured bedrock aquifers are typical of the Canadian Shield, contributing a moderate mineral content to the water without resulting in extreme hardness. This geological makeup, combined with the influence of Ordovician limestone Lowlands terrain, leads to the water's moderately mineralized character.
Homeowners in Joliette may notice some limescale buildup in appliances like kettles and showerheads due to the moderately hard water. Water heaters might operate less efficiently, and glassware could show spots after being washed in the dishwasher. To combat this, regular descaling with vinegar, using rinse aids, and considering a whole-house water softener can help improve cleaning and extend the lifespan of your appliances.
Geology & Source: Laurentian Shield and Ordovician limestone Lowlands; Precambrian Shield bedrock, granitic and metamorphic formations; fractured bedrock aquifers produce moderate hardness
Other Quebec Water Reports
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