Drummondville Water Hardness & Quality Report (2026)
Water Hardness
Source
river
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
157.5 mg/L
Est. Daily Cost
$0.22
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 Drummondville, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Drummondville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.9 yrs | 8.5 yrs | -19% |
| Washing Machine | 10.6 yrs | 12 yrs | -12% |
| Water Heater | 12.3 yrs | 15 yrs | -18% |
Regional Water Comparison
How Drummondville compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Drummondville, Quebec | 82 mg/L | Medium | 🟡 Moderately Hard |
| Sainte-Catherine, Quebec | 108 mg/L | High | 🟡 Moderately Hard |
| Bécancour, Quebec | 92.5 mg/L | Medium | 🟡 Moderately Hard |
| Trois-Rivières, Quebec | 75 mg/L | Medium | 🟡 Moderately Hard |
| Saint-Hyacinthe, Quebec | 73 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Drummondville compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Drummondville | 82 mg/L | 🟡 Low |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Drummondville's Water Unique?
Local geology and source profile
Drummondville's drinking water is managed by Ville de Drummondville, drawing from the Rivière Saint-François — a major Appalachian river flowing northwestward from the Eastern Townships through the Centre-du-Québec region — via the Drummondville Water Treatment Plant. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, fully meeting the Guidelines for Canadian Drinking Water Quality (GCDWQ). Hardness measures 82 mg/L (4.8 gpg) — classified as moderately hard by Health Canada, reflecting the Saint-François watershed's blend of Appalachian and Lowlands geology.
The Rivière Saint-François drains the Eastern Townships (Estrie) — an Appalachian Highlands landscape of ancient Cambrian and Ordovician metamorphic and volcanic rock — before reaching the St. Lawrence Lowlands plain near Drummondville. As the river crosses the geological boundary from the resistant Appalachian terrane to the Ordovician limestone lowland plain of Centre-du-Québec, it picks up additional dissolved calcium from the carbonate bedrock, elevating hardness above the purely Appalachian Sherbrooke baseline (55 mg/L). The 82 mg/L reflects this transitional geological setting.
At 82 mg/L, Drummondville residents experience only moderate scale deposits in kettles and on tap aerators — descaling every two to three months is generally adequate. Hot water tanks operate reliably at this hardness without dedicated scale treatment. Ville de Drummondville provides annual water quality reports following Ministère de l'Environnement provincial standards and advises residents in older pre-1970 housing in the downtown historic core to follow Health Canada precautionary lead guidance and enquire about lead service line status.
Geology & Source: Supplied by Ville de Drummondville from the Rivière Saint-François — water draining the Appalachian terrane and transitioning to the St. Lawrence Lowlands in Centre-du-Québec produces moderately hard water at 82 mg/L (4.8 gpg).