Candiac Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
river
pH Level
7.4
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
213.6 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 Candiac, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Candiac | 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 Candiac compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Candiac, Quebec | ≈ 120–179 mg/L | High | 🟠 Hard |
| La Prairie, Quebec | ≈ 60–120 mg/L | Medium | 🟡 Moderately Hard |
| Saint-Constant, Quebec | ≈ 120–179 mg/L | High | 🟠 Hard |
| Sainte-Catherine, Quebec | ≈ 120–179 mg/L | High | 🟠 Hard |
| Ile-des-Soeurs, Quebec | ≈ 60–120 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Candiac compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Candiac | ≈ 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 Candiac's Water Unique?
Local geology and source profile
The municipal water for Candiac is drawn from a local river on the Montérégie south shore, potentially a tributary of the St. Lawrence River. While specific details about the treatment process and exact sources are not readily available online, residents seeking precise information on their water quality, including hardness levels and treatment methods, are encouraged to reach out to the Ville de Candiac directly. An annual water quality report from the municipality would provide the most up-to-date and verified details.
The water supply in Candiac originates from the Montérégie south shore region. This area's geology, characterized by calcareous deposits, contributes to the water being classified as moderately hard. The exact formation and aquifer details are not specified, but the presence of these mineral-rich geological features is the primary reason for the water's hardness. Understanding this geological influence is key to appreciating the water's characteristics.
Homeowners in Candiac may notice that moderately hard water can lead to scale buildup in appliances like kettles and coffee makers over time. This mineral deposit can affect the efficiency and lifespan of your equipment. Using a water softener can mitigate these effects, making cleaning easier and preserving your plumbing. Regular descaling of appliances is also a good practice to maintain optimal performance and taste.
Geology & Source: Montérégie south shore river; calcareous deposits produce moderate hardness
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