Parkwoods-Donalda Water Hardness & Quality Report (2026)
Water Hardness
180+ mg/L
Very Hardestimated · not lab-verified
Source
lake
pH Level
8.5
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
547.3 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 Parkwoods-Donalda, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Parkwoods-Donalda | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8.3 yrs | 15 yrs | -45% |
Regional Water Comparison
How Parkwoods-Donalda compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Parkwoods-Donalda, Ontario | ≈ 180+ mg/L | Very High | 🔴 Very Hard |
| Banbury-Don Mills, Ontario | ≈ 120–179 mg/L | High | 🟠 Hard |
| Henry Farm, Ontario | ≈ 180+ mg/L | High | 🔴 Very Hard |
| Victoria Village, Ontario | ≈ 180+ mg/L | Very High | 🔴 Very Hard |
| Pleasant View, Ontario | ≈ 180+ mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Parkwoods-Donalda compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Parkwoods-Donalda | ≈ 180+ mg/L | 🔴 High |
| Canada National Avg | 140 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Parkwoods-Donalda's Water Unique?
Local geology and source profile
Parkwoods-Donalda, a Toronto neighborhood, gets its drinking water from the City of Toronto. The raw water is drawn from Lake Ontario, a major component of the Great Lakes Basin watershed. This water then undergoes treatment at the R.C. Harris Water Treatment Plant. This facility is responsible for purifying the supply for the northeast distribution zone, which includes Parkwoods-Donalda, ensuring residents and businesses receive safe, potable water. The Lake Ontario watershed itself is extensive, collecting water from rivers and rainfall across multiple provinces and states.
The water's mineral content is significantly influenced by the underlying geology. Paleozoic bedrock, specifically Ordovician limestone and shale found beneath Lake Ontario, dissolves into the supply. Drainage basins dominated by limestone and glacial deposits further add dissolved ions. This interaction with carbonate-rich rocks and soils is why the water is characterized as hard, a common trait for surface water in this region that doesn't rely on groundwater aquifers.
Homeowners in Parkwoods-Donalda may notice considerable limescale buildup in plumbing, kettles, and water heaters due to the water's hardness. This scale can reduce the efficiency and lifespan of appliances like dishwashers and boilers, potentially raising energy bills by as much as 31% as heating elements become insulated. While the water is safe to drink and meets all federal standards, with a pH of 8.2 and low lead levels, mitigating scale through regular descaling or installing a water softener is advisable to protect your home's systems and maintain appliance longevity.
Geology & Source: Great Lakes Basin; Paleozoic sedimentary basins, Ordovician limestone and dolomite formations contribute calcium carbonate, resulting in hard water.
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