Sponsored
OpenStats picks for Williams Lake — everyday tap water
Williams Lake's 90 mg/L supply is relatively soft — filtration is mostly about chlorine taste. A certified pitcher or compact under-sink unit is enough for most homes.
Williams Lake tap water: Grade B, hardness 90 mg/L
By OpenStats · Built from official Canadian sources
Regional estimateB
Water quality grade
Good
Graded against Health Canada drinking water guidelines
Lead within guidelinepH in range
Hardness vs provincial average90 mg/L · prov. avg 142 mg/L
Lead vs provincial average0.2 μg/L · prov. avg 0.4 μg/L
Hardness
90 mg/L
Lead
0.2 μg/L
≤ 5 μg/L
pH
6.8
6.5–8.5 range
Hardness
90 mg/L
Moderate
Lead
0.2 μg/L
Max: 5 μg/L
pH
6.8
6.5–8.5
Chlorine
0.7 mg/L
Max: 4 mg/L
SponsoredAlso consider
Brita Denali pitcher
OpenStats pick for Williams Lake’s 90 mg/L supply — taste, not minerals
SponsoredAlso consider
Waterdrop 15UA under-sink filter
Under-sink carbon for Williams Lake
SponsoredAlso consider
VARIFY 17-in-1 test kit
Baseline Williams Lake tap water before RO
As an Amazon Associate, OpenStats earns from qualifying purchases.
Partner
Lab water test for Williams Lake taps
Municipal reports cover the plant. A Tap Score kit tests the water at a Williams Lake tap for a broader contaminant panel.
Lab kit partner link. We may earn a commission when tracking is active.
Partner
Waterdrop filtration systems
Under-sink and RO systems from Waterdrop Canada — a direct brand alternative to marketplace filters.
Waterdrop affiliate link. We may earn a commission.
Reading this page
Williams Lake's drinking water earns Grade B (Good). Hardness is 90 mg/L (moderate), and pH is 6.8 against Health Canada's 6.5–8.5 guideline.
Lead at 0.2 μg/L is below the 5 μg/L maximum, and fluoride is 0.5 mg/L against a guideline of ≤ 1.5 mg/L.
How to use this page: read the headline metric and provincial comparison first, then supply and treatment notes, then the source footer for the underlying dataset.
Watershed to tap
Supply and treatment
How Williams Lake draws, treats, and distributes drinking water, from municipal and utility publications. Chemistry grades above come from separate parameter records; this section does not invent plant lab figures.
Source type
Groundwater
Research confidence: high
Source waters
- Williams Lake aquifer (deep wells on Scout Island and North Lakeside)
Treatment plants
Scout Island / Lakeside chlorination (pressure media filtration WTP funded for manganese)
Sodium hypochlorite disinfection at source today. Funded pressure-media filtration plant will add manganese removal and filtration.
Distribution
Five deep wells (four Scout Island, one north shore), nine reservoirs (~20,000 m³), booster pumps between zones.
Health parameters meet Health Canada limits; turbidity above the 1 NTU typical target.
Health parameters meet Health Canada limits; turbidity exceeds the typical 1 NTU aesthetic target.
Figure 1 · Supply chain
From watershed to tap
Compared to provincial average
British Columbia · 58 cities in sample
Hardness (city vs British Columbia avg)90 mg/L
pH (city vs British Columbia avg)6.8
Lead (city vs British Columbia avg)0.2 μg/L
Fluoride (city vs British Columbia avg)0.5 mg/L
Provincial average: hardness 142 mg/L · pH 7.6 · lead 0.4 μg/L · fluoride 0.6 mg/L
Full parameters
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 90 mg/L | No health limit (aesthetic) | Compliant |
| pH | 6.8 | 6.5–8.5 | Compliant |
| Lead | 0.2 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.5 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 0.7 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 1.1 NTU | ≤ 1 NTU (typical target) | Exceeds guideline |
Alberta water licences
WaterRegister.ca
On a private well or holding an Alberta water allocation licence? Water Register maps EPA licence records, transfer comparables, and watershed context across the province.
Explore WaterRegister.ca →OpenStats pick
OpenStats picks for Williams Lake — everyday tap water
Williams Lake's 90 mg/L supply is relatively soft — filtration is mostly about chlorine taste. A certified pitcher or compact under-sink unit is enough for most homes.
As an Amazon Associate, OpenStats earns from qualifying purchases.
· Compare options- Shop on Amazon.caBrita Denali pitcherOpenStats pick for Williams Lake’s 90 mg/L supply — taste, not minerals
- Shop on Amazon.caWaterdrop 15UA under-sink filterUnder-sink carbon for Williams Lake
- Shop on Amazon.caVARIFY 17-in-1 test kitBaseline Williams Lake tap water before RO
Source · ECCC / municipal open data (seed). Last updated 2026-09-01. Refreshed on the site's automated schedule.