Brookhaven-Amesbury Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
8.2
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
604.3 mg/L
Est. Daily Cost
$0.64
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 Brookhaven-Amesbury, your appliances are currently losing 32% efficiency due to mineral buildup.
| Appliance | In Brookhaven-Amesbury | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.7 yrs | 8.5 yrs | -80% |
| Washing Machine | 4.8 yrs | 12 yrs | -60% |
| Water Heater | 6.1 yrs | 15 yrs | -59% |
Regional Water Comparison
How Brookhaven-Amesbury compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Brookhaven-Amesbury, Ontario | 238.5 mg/L | Very High | 🔴 Very Hard |
| Mount Dennis, Ontario | 249.5 mg/L | Very High | 🔴 Very Hard |
| Maple Leaf, Ontario | 238 mg/L | Very High | 🔴 Very Hard |
| Keelesdale-Eglinton West, Ontario | 239.5 mg/L | Very High | 🔴 Very Hard |
| Rockcliffe-Smythe, Ontario | 238.5 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Brookhaven-Amesbury compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Brookhaven-Amesbury | 238.5 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Brookhaven-Amesbury's Water Unique?
Local geology and source profile
Brookhaven-Amesbury (a northwest Toronto neighbourhood centred near Lawrence Avenue West and Black Creek Drive in the former City of York — a densely populated working-class community of post-war apartments, semi-detached homes, and public housing in the Caledonia-Fairbank corridor, with a significant Jamaican and Italian immigrant heritage) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the F.J. Horgan Water Treatment Plant. Water is treated using ozonation, biofiltration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) standards. Hardness in this distribution zone is 238.5 mg/L (13.9 gpg) — classified as very hard by Health Canada, with TDS of 604 mg/L, consistent with the northwest Toronto distribution corridor.
Brookhaven-Amesbury receives F.J. Horgan plant Lake Ontario supply through the northwest Toronto distribution network — the same characteristically very hard Lake Ontario source (dissolved Silurian and Devonian carbonate from the Great Lakes basin) as all Toronto boroughs. The 238.5 mg/L is consistent with the adjacent Keelesdale-Eglinton West (238 mg/L), Brookhaven-Amesbury, and broader northwest Toronto-York supply corridor.
At 238.5 mg/L, Brookhaven-Amesbury residents face persistent scale challenges. The City of Toronto provides multilingual water quality information at toronto.ca/water — important for this community's diverse Caribbean and Southern European population. The neighbourhood's post-war housing and apartment stock warrants Health Canada lead service line precautionary guidance review for pre-1955 properties, and residents in older Toronto Community Housing buildings should contact the City's lead service line replacement programme.
Geology & Source: Supplied by City of Toronto from Lake Ontario via the F.J. Horgan Water Treatment Plant — the Brookhaven-Amesbury northwest Toronto distribution zone carries very hard water at 238.5 mg/L (13.9 gpg), consistent with the Lawrence-Etobicoke supply corridor.