La Tuque Water Hardness & Quality Report (2026)
Water Hardness
Source
river
pH Level
7.1
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
46.8 mg/L
Est. Daily Cost
$0.07
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 La Tuque, your appliances are currently losing 4% efficiency due to mineral buildup.
| Appliance | In La Tuque | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.7 yrs | 8.5 yrs | — |
| Washing Machine | 12.6 yrs | 12 yrs | — |
| Water Heater | 14.5 yrs | 15 yrs | -3% |
Regional Water Comparison
How La Tuque compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ La Tuque, Quebec | 28 mg/L | Low | 🟢 Soft |
| Laurentides, Quebec | 37.5 mg/L | Low | 🟢 Soft |
| Shawinigan, Quebec | 102 mg/L | Medium | 🟡 Moderately Hard |
| Trois-Rivières, Quebec | 75 mg/L | Medium | 🟡 Moderately Hard |
| Sainte-Catherine, Quebec | 108 mg/L | High | 🟡 Moderately Hard |
National Benchmark
How La Tuque compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ La Tuque | 28 mg/L | 🟢 None |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes La Tuque's Water Unique?
Local geology and source profile
La Tuque's drinking water is managed by the Ville de La Tuque, drawing from the Saint-Maurice River — La Tuque is a city deep in the Mauricie region of Quebec, far north along the Saint-Maurice River in the Laurentian Shield interior, home to the Pap-Kash (former Windigo) and Wemotaci First Nation communities, the international La Tuque Festival de Musique Émergente (FME), extensive forestry and hydroelectric operations, and the wild Saint-Maurice River canoe route through one of Quebec's most remote and pristine Shield landscapes. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 28 mg/L (1.6 gpg) — classified as soft by Health Canada, reflecting the Laurentian Shield granite headwater character of the upper Saint-Maurice.
La Tuque draws from the upper Saint-Maurice River in the Grenville Province of the Canadian Shield — here the Saint-Maurice flows through ancient Precambrian Archean granitic gneiss and Paleoproterozoic metasedimentary rocks with essentially zero carbonate content. At 28 mg/L, La Tuque's supply is dramatically softer than the standard Mauricie reference of ~108 mg/L at Trois-Rivières, reflecting the pure Shield headwater character before the river accumulates carbonate minerals in the lower Saint-Maurice Valley lowlands. This is consistent with the broader pattern of ultra-soft Shield river supplies in northern Quebec (Côte-Nord 19.5–63.5 mg/L; Sainte-Monique Saguenay 13.5 mg/L from reference data). Water quality reports are published under Ministère de l'Environnement standards.
With 28 mg/L, La Tuque homes are essentially scale-free — occasional kettle cleaning every three months is adequate. Hot water tanks have an excellent operational lifespan. Health Canada lead and copper precautionary guidance applies, as soft water increases corrosive potential for metallic plumbing. Pre-1975 properties in the historic La Tuque townsite near the Saint-Maurice River should have lead service lines assessed.
Geology & Source: Supplied by the Ville de La Tuque from the Saint-Maurice River in the upper Mauricie Shield — the La Tuque supply from the upper Saint-Maurice River produces very soft water at 28 mg/L (1.6 gpg), reflecting the Laurentian Shield granite headwater character of the upper Saint-Maurice watershed.