Tsawwassen Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
68.2 mg/L
Est. Daily Cost
$0.10
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 Tsawwassen, your appliances are currently losing 5% efficiency due to mineral buildup.
| Appliance | In Tsawwassen | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.4 yrs | 8.5 yrs | -1% |
| Washing Machine | 12.2 yrs | 12 yrs | — |
| Water Heater | 14.1 yrs | 15 yrs | -6% |
Regional Water Comparison
How Tsawwassen compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Tsawwassen, British Columbia | 37 mg/L | Low | 🟢 Soft |
| Ladner, British Columbia | 48 mg/L | Low | 🟢 Soft |
| Shellmont, British Columbia | 45 mg/L | Low | 🟢 Soft |
| Broadmoor, British Columbia | 41 mg/L | Low | 🟢 Soft |
| Steveston, British Columbia | 53 mg/L | Low | 🟢 Soft |
National Benchmark
How Tsawwassen compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Tsawwassen | 37 mg/L | 🟢 None |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Tsawwassen's Water Unique?
Local geology and source profile
Tsawwassen's drinking water is managed by the Corporation of Delta, 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 Tsawwassen distribution zone is 37 mg/L (2.2 gpg) — classified as soft by Health Canada, consistent with the Metro Vancouver soft-water supply character extending to this southern Delta peninsula community.
Tsawwassen (the ferry terminal and southernmost community in Metro Vancouver, on a peninsula projecting into the Salish Sea adjacent to the Tsawwassen First Nation — Canada's busiest ferry terminal for BC Ferries connecting to Vancouver Island and the Southern Gulf Islands) receives the same fundamentally soft Coast Mountain granodiorite and gneiss watershed supply as all Metro Vancouver municipalities. The 37 mg/L is consistent with other Delta and south Delta distribution zones (Ladner 48 mg/L) — softer than the Tri-Cities corridor and confirming the uniform soft-water character of the south Metro Vancouver distribution area.
With 37 mg/L of hardness, Tsawwassen homes are completely scale-free — very occasional kettle cleaning every three months is sufficient. Hot water tanks have an excellent operational lifespan. The Corporation of Delta provides water quality information at delta.ca. Tsawwassen's growing mixed residential and commercial community, including the new Tsawwassen Mills mall development and Tsawwassen First Nation residential areas, features modern plumbing meeting current Health Canada standards throughout.
Geology & Source: Supplied by Corporation of Delta from Metro Vancouver (GVWD) mountain reservoir water — the Tsawwassen south Delta peninsula distribution zone retains soft Coast Mountain character at 37 mg/L (2.2 gpg).