Drinking Water Quality and Supply

The Blue Mountains tap water: Grade B, hardness 243 mg/L

By OpenStats · Built from official Canadian sources

Regional estimate
B

Water quality grade

Good

Graded against Health Canada drinking water guidelines

Lead within guidelinepH in range
Hardness vs provincial average243 mg/L · prov. avg 178 mg/L
Lead vs provincial average0.3 μg/L · prov. avg 0.4 μg/L
Hardness
243 mg/L
Lead
0.3 μg/L
≤ 5 μg/L
pH
8.1
6.5–8.5 range
Hardness
243 mg/L
Very hard
Lead
0.3 μg/L
Max: 5 μg/L
pH
8.1
6.5–8.5
Chlorine
0.8 mg/L
Max: 4 mg/L
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OpenStats picks for The Blue Mountains — hard water, filter-first (243 mg/L)

The Blue Mountains at 243 mg/L is hard enough to scale kettles, but most residents solve taste and lead at the tap first. Carbon filtration + test strips; whole-house softener only if repeat hardness readings justify it.

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Reading this page

The Blue Mountains's drinking water earns Grade B (Good). Hardness is 243 mg/L (very hard), and pH is 8.1 against Health Canada's 6.5–8.5 guideline.

Lead at 0.3 μg/L is below the 5 μg/L maximum, and fluoride is 0.6 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 The Blue Mountains 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: medium

Source waters

  • groundwater

Treatment plants

  • The Blue Mountains Water Treatment Plant

    From municipal open data or regional estimate (verify locally).

Cited sources

Outbound municipal or utility citations pending. See methodology for how supply research is gathered.

Supply notes summarize published utility materials. They are not a substitute for the issuing authority's current notices or for a licensed tap test.

All monitored parameters meet Health Canada guidelines.

Health parameters compliant; minor aesthetic factors such as hardness or pH near guideline edges.

Figure 1 · Supply chain

From watershed to tap

Compared to provincial average

Ontario · 123 cities in sample

Hardness (city vs Ontario avg)243 mg/L
pH (city vs Ontario avg)8.1
Lead (city vs Ontario avg)0.3 μg/L
Fluoride (city vs Ontario avg)0.6 mg/L

Provincial average: hardness 178 mg/L · pH 7.5 · lead 0.4 μg/L · fluoride 0.6 mg/L

Full parameters

ParameterReadingHealth Canada guidelineStatus
Hardness243 mg/LNo health limit (aesthetic)Compliant
pH8.16.5–8.5Compliant
Lead0.3 μg/L≤ 5 μg/LCompliant
Fluoride0.6 mg/L≤ 1.5 mg/LCompliant
Chlorine (free)0.8 mg/L≤ 4 mg/LCompliant
Turbidity0.4 NTU≤ 1 NTU (typical target)Compliant
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 The Blue Mountains — hard water, filter-first (243 mg/L)

The Blue Mountains at 243 mg/L is hard enough to scale kettles, but most residents solve taste and lead at the tap first. Carbon filtration + test strips; whole-house softener only if repeat hardness readings justify it.

As an Amazon Associate, OpenStats earns from qualifying purchases.

· Compare options

  • Brita 10-cup Elite pitcher
    OpenStats pick for The Blue Mountains’s 243 mg/L hardness — drinking-water carbon first; pitchers do not soften
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  • Waterdrop 15UA under-sink filter
    Higher-flow kitchen carbon for The Blue Mountains without dedicating a softener closet
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  • VARIFY hardness test strips
    The Blue Mountains at 243 mg/L — measure before jumping to a whole-house softener
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  • Aquasure Harmony softener (upgrade path)
    Consider whole-house softening only if strips confirm 243 mg/L+ is wrecking appliances
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  • Brita Elite replacement filters
    Recurring Elite cartridges for The Blue Mountains
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Source · ECCC / municipal open data (seed). Last updated 2026-09-01. Refreshed on the site's automated schedule.