Regent Park Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
8.2
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
631.7 mg/L
Est. Daily Cost
$0.66
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 Regent Park, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Regent Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 4.5 yrs | 12 yrs | -63% |
| Water Heater | 5.8 yrs | 15 yrs | -61% |
Regional Water Comparison
How Regent Park compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Regent Park, Ontario | 246 mg/L | Very High | 🔴 Very Hard |
| Cabbagetown-South St.James Town, Ontario | 240.5 mg/L | Very High | 🔴 Very Hard |
| Moss Park, Ontario | 229 mg/L | Very High | 🔴 Very Hard |
| North Riverdale, Ontario | 238.5 mg/L | Very High | 🔴 Very Hard |
| North St.James Town, Ontario | 236.5 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Regent Park compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Regent Park | 246 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
Bring Vancouver-quality water to your Regent Park home
Shop water softeners on Amazon.com →
What Makes Regent Park's Water Unique?
Local geology and source profile
Regent Park (a historic east-central Toronto neighbourhood — Canada's first public housing project (built 1948–1959), once the largest social housing complex in Canada, and now undergoing one of North America's most ambitious urban renewal transformations, replacing the original low-rise social housing towers with mixed-income mixed-use development including market condominiums, non-profit housing, community facilities (the Regent Park Aquatic Centre, the Daniels Spectrum arts hub), and the revitalised Dundas Street East-Parliament Street corridor, one of Toronto's most significant and watched neighbourhood revitalisation projects) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the R.C. Harris Water Treatment Plant. Water is treated using ozonation, biofiltration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) standards. Hardness is 246 mg/L (14.4 gpg) — classified as very hard by Health Canada, consistent with the standard east-central Toronto supply.
Regent Park receives R.C. Harris plant Lake Ontario supply through the east-central Toronto distribution — the same characteristically very hard Lake Ontario source (dissolved Silurian and Devonian carbonate from the Great Lakes basin) as all Toronto boroughs. The 246 mg/L is slightly above the standard Toronto range, consistent with the east-central Toronto harder sub-zones near Cabbagetown-South St.James Town (240.5 mg/L from batch 33).
At 246 mg/L, Regent Park residents face persistent scale challenges — monthly to bimonthly kettle and showerhead descaling is typical. The City of Toronto provides multilingual water quality information at toronto.ca/water, with resources in the diverse languages of the Regent Park community. Health Canada lead service line precautionary guidance applies to the original 1948–1959 Regent Park social housing buildings that remain in the phased renewal area.
Geology & Source: Supplied by City of Toronto from Lake Ontario via the R.C. Harris Water Treatment Plant — the Regent Park east-central Toronto distribution zone carries very hard water at 246 mg/L (14.4 gpg), consistent with the standard east-central Toronto supply.