Sainte-Monique 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
22.2 mg/L
Est. Daily Cost
$0.04
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 Sainte-Monique, your appliances are currently losing 2% efficiency due to mineral buildup.
| Appliance | In Sainte-Monique | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 9.2 yrs | 8.5 yrs | — |
| Washing Machine | 13.1 yrs | 12 yrs | — |
| Water Heater | 15.1 yrs | 15 yrs | — |
Regional Water Comparison
How Sainte-Monique compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Sainte-Monique, Quebec | 13.5 mg/L | Low | 🟢 Soft |
| Alma, Quebec | 51 mg/L | Low | 🟢 Soft |
| Dolbeau-Mistassini, Quebec | 53 mg/L | Low | 🟢 Soft |
| Roberval, Quebec | 26 mg/L | Low | 🟢 Soft |
| Saint-Félicien, Quebec | 17 mg/L | Low | 🟢 Soft |
National Benchmark
How Sainte-Monique compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sainte-Monique | 13.5 mg/L | 🟢 None |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Sainte-Monique's Water Unique?
Local geology and source profile
Sainte-Monique's drinking water is managed by Municipalité de Sainte-Monique, drawing from a local river or lake source in the Saguenay–Lac-Saint-Jean region — Sainte-Monique is a rural municipality on the south shore of Lac Saint-Jean, the vast inland lake of the Saguenay fjord country in northcentral Quebec, a lake formed in a bedrock depression in the Laurentian Shield where the Saguenay River begins its dramatic descent to the St. Lawrence, the geographic heart of the deep-rooted Bleuets (blueberry-growers) francophone Quebec culture of the Lac-Saint-Jean region. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 13.5 mg/L (0.8 gpg) — classified as soft by Health Canada, with TDS of 22.2 mg/L — an extremely soft supply consistent with the Laurentian Shield watershed character of the Saguenay–Lac-Saint-Jean basin.
The Saguenay–Lac-Saint-Jean watershed drains the Laurentide Mountains and Laurentian Plateau — ancient Archean and Proterozoic granites, anorthosites, and gneisses of the Grenville Province, among the world's geologically oldest and most insoluble terrains. The Lac-Saint-Jean basin collects runoff from hundreds of Shield rivers dissolving essentially nothing from the granite and gneiss bedrock, producing the near-zero-mineral TDS-22 supply. This is among the softest municipal supplies in Canada, consistent with the Saguenay–Lac-Saint-Jean region's characteristic ultra-soft water.
With 13.5 mg/L, Sainte-Monique homes are completely scale-free — appliances and hot water tanks have outstanding operational lifespans. Water quality reports are published following Ministère de l'Environnement standards. Health Canada lead and copper precautionary guidance is essential here — the extremely soft, near-zero-TDS supply is highly corrosive to older metallic plumbing, and any pre-1975 residential properties in the Sainte-Monique community must have lead plumbing and lead-tin solder promptly assessed and replaced.
Geology & Source: Supplied by Municipalité de Sainte-Monique from a local Saguenay–Lac-Saint-Jean river or lake source — the Sainte-Monique supply from the Laurentian Shield Lac-Saint-Jean watershed produces extremely soft water at 13.5 mg/L (0.8 gpg), with TDS of only 22.2 mg/L.