LaSalle Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
8.5
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
951.6 mg/L
Est. Daily Cost
$0.91
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 LaSalle, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In LaSalle | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How LaSalle compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ LaSalle, Ontario | 340 mg/L | Very High | 🔴 Very Hard |
| Windsor, Ontario | 145 mg/L | High | 🟠 Hard |
| Amherstburg, Ontario | 317 mg/L | Very High | 🔴 Very Hard |
| Tecumseh, Ontario | 271.5 mg/L | Very High | 🔴 Very Hard |
| Kingsville, Ontario | 301 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How LaSalle compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ LaSalle | 340 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes LaSalle's Water Unique?
Local geology and source profile
LaSalle's drinking water is managed by the Town of LaSalle, located southwest of Windsor on the south shore of the Detroit River in Essex County, drawing from Lake Erie via a treatment plant intake in the Detroit River–Lake Erie corridor. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 340 mg/L (19.9 gpg) — classified as very hard by Health Canada, with TDS of 952 mg/L and elevated pH of 8.5, making LaSalle one of Ontario's hardest municipal supplies, reflecting the extreme Michigan Basin evaporite and carbonate mineral loading of the Lake Erie–Detroit River supply at this southwestern Ontario extreme.
The Detroit River corridor at LaSalle represents Lake Erie water that has traversed the most carbonate-rich section of the Michigan Basin — passing over the Silurian Salina Formation gypsum and anhydrite evaporites and the Devonian Detroit River Formation dolostone that dominate the bedrock of the Windsor–Detroit region. By the time Lake Erie water reaches LaSalle through the Detroit River, it carries an extreme combined carbonate hardness (340 mg/L as CaCO₃) and sulphate load (contributing to the TDS of 952 mg/L) that is among the highest in any Ontario municipal supply — significantly harder than Windsor (267 mg/L) and St. Thomas (309 mg/L).
At 340 mg/L, LaSalle homeowners face some of Ontario's most severe scale conditions. Kettle elements may require weekly cleaning; hot water tank heating elements accumulate damaging scale within months of installation. A whole-home ion-exchange water softener and point-of-use filtration for drinking water are strongly recommended at this extreme level. The Town of LaSalle provides water quality information at lasalle.ca, and water treatment specialists throughout the Windsor–Essex region are well experienced in managing the characteristically extreme Lake Erie Michigan Basin supply.
Geology & Source: Supplied by Town of LaSalle from Lake Erie via the Detroit River intake corridor — Lake Erie and Detroit River water carrying extreme Silurian Salina Formation evaporite and Devonian carbonate loading from the Michigan Basin produces extremely hard water at 340 mg/L (19.9 gpg).