Kerrisdale Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
216.5 mg/L
Est. Daily Cost
$0.24
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 Kerrisdale, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Kerrisdale | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 10.3 yrs | 12 yrs | -14% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Kerrisdale compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Kerrisdale, British Columbia | 90.5 mg/L | Medium | 🟡 Moderately Hard |
| Arbutus Ridge, British Columbia | 59 mg/L | Medium | 🟢 Soft |
| South Granville, British Columbia | 16.5 mg/L | Low | 🟢 Soft |
| Marpole, British Columbia | 44.5 mg/L | Low | 🟢 Soft |
| Dunbar-Southlands, British Columbia | 43.5 mg/L | Low | 🟢 Soft |
National Benchmark
How Kerrisdale compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Kerrisdale | 90.5 mg/L | 🟡 Low |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Kerrisdale's Water Unique?
Local geology and source profile
Kerrisdale's drinking water is managed by the City of Vancouver, purchasing bulk supply from Metro Vancouver (GVWD) — sourced from the protected Capilano, Seymour, and Coquitlam mountain watersheds. Water is treated at the Seymour-Capilano Filtration Plant using ozonation, biofiltration, UV disinfection, and chloramination, fully meeting the Guidelines for Canadian Drinking Water Quality (GCDWQ). Hardness in the Kerrisdale distribution sub-zone is 90.5 mg/L (5.3 gpg) — classified as moderately hard by Health Canada, one of the harder sub-zone readings in the Metro Vancouver distribution and consistent with the deep southwest Vancouver pipeline routing characteristic.
Kerrisdale (a prestigious village-style neighbourhood in deep southwest Vancouver at 41st and West Boulevard — one of Vancouver's most elegant and established residential areas, with independent boutiques and bakeries in the Kerrisdale Village on 41st Avenue, large Tudor and Colonial revival homes on tree-lined streets, and the Kerrisdale Arena community hub, a neighbourhood associated with old-money Vancouver prestige adjacent to Arbutus and Musqueam) shows the same harder sub-zone pattern as Seafair (86 mg/L) in Richmond, Lougheed (93.5 mg/L) in Coquitlam, and Central Lonsdale (91.5 mg/L) in North Vancouver — all at the far end of their respective distribution pipeline networks, where the Metro Vancouver supply shows increased hardness readings compared to the near-source inner-city zones. The 90.5 mg/L at Kerrisdale is significantly harder than the nearby English Bay (16.5 mg/L) and Yaletown (65.5 mg/L), reflecting the specific southwest Vancouver distribution sub-zone characteristic.
At 90.5 mg/L, Kerrisdale homes experience light to moderate scale deposits — cleaning every two months is advisable. The City of Vancouver provides water quality information at vancouver.ca. Health Canada lead precautionary guidance applies to Kerrisdale's substantial stock of pre-war and 1950s–1960s heritage homes.
Geology & Source: Supplied by City of Vancouver from Metro Vancouver (GVWD) mountain reservoir water — the Kerrisdale deep southwest Vancouver distribution sub-zone records moderately hard supply at 90.5 mg/L (5.3 gpg), one of the harder sub-zone measurements in the Metro Vancouver distribution, consistent with the southwest Vancouver pipeline extremity.