Surrey Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.1
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
35 mg/L
Est. Daily Cost
$0.02
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 Surrey, your appliances are currently losing 1% efficiency due to mineral buildup.
| Appliance | In Surrey | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 9.4 yrs | 8.5 yrs | — |
| Washing Machine | 13.4 yrs | 12 yrs | — |
| Water Heater | 15.4 yrs | 15 yrs | — |
Regional Water Comparison
How Surrey compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Surrey, British Columbia | 6 mg/L | Low | 🟢 Soft |
| Vancouver, British Columbia | 3 mg/L | Low | 🟢 Soft |
| Victoria, British Columbia | 4 mg/L | Low | 🟢 Soft |
| Calgary, Alberta | 185 mg/L | High | 🔴 Very Hard |
| Edmonton, Alberta | 175 mg/L | High | 🟠 Hard |
National Benchmark
How Surrey compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Surrey | 6 mg/L | 🟢 None |
| Canada National Avg | 104 mg/L | 🟡 Low |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Surrey's Water Unique?
Local geology and source profile
Surrey receives its drinking water through Metro Vancouver (Greater Vancouver Water District — GVWD), sourced from three protected mountain watersheds: Capilano, Seymour, and Coquitlam reservoirs on the North Shore mountains. Water is filtered and treated at the Seymour-Capilano Filtration Plant and distributed across the regional network through a series of transmission mains and reservoirs. All treatment meets the Guidelines for Canadian Drinking Water Quality (GCDWQ), and hardness measures just 6 mg/L (0.4 gpg) — among the softest municipal supplies in North America.
The Coast Mountain watersheds are composed of granite, gabbro, and volcanic basalt — resistant crystalline igneous rocks that yield almost no dissolved calcium or magnesium to percolating rainwater and snowmelt. The closed, protected status of these watersheds means there is no agricultural or industrial activity to alter the natural mineral composition. Surrey's slightly higher hardness than central Vancouver (6 vs 3 mg/L) reflects minor variation in distribution system contact time and blending ratios within the regional network.
With water this soft, Surrey homes are virtually free of limescale on taps and appliances. However, the very low mineral content increases the water's mild corrosivity — older galvanised steel or copper pipe systems may experience pin-hole leaks over time. Hot water tanks in pre-1980 homes should be inspected for internal corrosion. Metro Vancouver recommends checking your home's pipe material; a pH-stabilising cartridge filter can protect older plumbing.
Geology & Source: Supplied by Metro Vancouver (GVWD) from the Capilano, Seymour, and Coquitlam mountain reservoirs — Coast Mountain granite and volcanic bedrock shed virtually mineral-free water into these protected watersheds, resulting in just 6 mg/L (0.4 gpg).