Drinking Water Quality and Supply

Charlottetown tap water: Grade B, hardness 167 mg/L

By OpenStats · Built from official Canadian sources

Direct municipal data
B

Water quality grade

Good

Graded against Health Canada drinking water guidelines

Lead within guidelinepH in range
Hardness vs provincial average167 mg/L · prov. avg 198 mg/L
Lead vs provincial average0.4 μg/L · prov. avg 0.3 μg/L
Hardness
167 mg/L
Lead
0.4 μg/L
≤ 5 μg/L
pH
7.8
6.5–8.5 range
Hardness
167 mg/L
Hard
Lead
0.4 μg/L
Max: 5 μg/L
pH
7.8
6.5–8.5
Chlorine
0.9 mg/L
Max: 4 mg/L
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Reading this page

Charlottetown water hardness is 167 mg/L, from the city's published water quality reporting.

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 Charlottetown 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

  • Winter River watershed groundwater (municipal wellfields)

Treatment plants

  • Charlottetown Water Utility disinfection / fluoridation facilities

    No conventional surface-water filtration plant; groundwater from multiple wellfields is disinfected and fluoridated before distribution.

Distribution

Charlottetown Water and Sewer Utility extracts from about thirteen wells across municipal wellfields in the Winter River watershed (city materials variously describe three or four wellfields) and distributes citywide. PEI as a province is entirely dependent on groundwater for drinking water.

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

Prince Edward Island · 5 cities in sample

Hardness (city vs Prince Edward Island avg)167 mg/L
pH (city vs Prince Edward Island avg)7.8
Lead (city vs Prince Edward Island avg)0.4 μg/L
Fluoride (city vs Prince Edward Island avg)0.6 mg/L

Provincial average: hardness 198 mg/L · pH 7.6 · lead 0.3 μg/L · fluoride 0.5 mg/L

Full parameters

ParameterReadingHealth Canada guidelineStatus
Hardness167 mg/LNo health limit (aesthetic)Compliant
pH7.86.5–8.5Compliant
Lead0.4 μg/L≤ 5 μg/LCompliant
Fluoride0.6 mg/L≤ 1.5 mg/LCompliant
Chlorine (free)0.9 mg/L≤ 4 mg/LCompliant
Turbidity2.1 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 Charlottetown — chlorine + hardness

Charlottetown pairs 167 mg/L hardness with 0.9 mg/L chlorine — taste and scale show up together. Elite carbon for drinking, shower filter for chlorine, strips so you know when you need a softener.

As an Amazon Associate, OpenStats earns from qualifying purchases.

· Compare options

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  • Frizzlife SW20 under-sink filter
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  • Brita Elite replacement filters
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  • VARIFY hardness test strips
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Source · City of Charlottetown Water and Sewer Utility annual report. Last updated 2026-10-07. Refreshed on the site's automated schedule.