Drinking Water Quality and Supply

Shawinigan tap water: Grade B, hardness 108 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 average108 mg/L · prov. avg 183 mg/L
Lead vs provincial average0.4 μg/L · prov. avg 0.3 μg/L
Hardness
108 mg/L
Lead
0.4 μg/L
≤ 5 μg/L
pH
7.1
6.5–8.5 range
Hardness
108 mg/L
Moderate
Lead
0.4 μg/L
Max: 5 μg/L
pH
7.1
6.5–8.5
Chlorine
0.9 mg/L
Max: 4 mg/L
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OpenStats picks for Shawinigan — lead-aware filtration

Plant averages for Shawinigan do not guarantee your tap is lead-free. Use NSF/ANSI 53-certified filters (Elite cartridges or Frizzlife under-sink) and a home test kit in pre-1975 housing.

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Compare filters · Water test kits · Hardness guide

Reading this page

Shawinigan's drinking water earns Grade B (Good). Hardness is 108 mg/L (moderate), and pH is 7.1 against Health Canada's 6.5–8.5 guideline.

Lead at 0.4 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 Shawinigan 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

Surface water

Research confidence: medium

Source waters

  • Saint-Maurice River

Treatment plants

  • Usine de production d’eau potable de Shawinigan

    Municipal plant treating Saint-Maurice River surface water for Shawinigan.

Distribution

City aqueduct and reservoirs along the Saint-Maurice valley urban area.

Cited sources

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

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

Quebec · 34 cities in sample

Hardness (city vs Quebec avg)108 mg/L
pH (city vs Quebec avg)7.1
Lead (city vs Quebec avg)0.4 μg/L
Fluoride (city vs Quebec avg)0.5 mg/L

Provincial average: hardness 183 mg/L · pH 7.5 · lead 0.3 μg/L · fluoride 0.6 mg/L

Full parameters

ParameterReadingHealth Canada guidelineStatus
Hardness108 mg/LNo health limit (aesthetic)Compliant
pH7.16.5–8.5Compliant
Lead0.4 μg/L≤ 5 μg/LCompliant
Fluoride0.5 mg/L≤ 1.5 mg/LCompliant
Chlorine (free)0.9 mg/L≤ 4 mg/LCompliant
Turbidity2.9 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 Shawinigan — lead-aware filtration

Plant averages for Shawinigan do not guarantee your tap is lead-free. Use NSF/ANSI 53-certified filters (Elite cartridges or Frizzlife under-sink) and a home test kit in pre-1975 housing.

As an Amazon Associate, OpenStats earns from qualifying purchases.

· Compare options

  • Frizzlife SW20 under-sink filter
    OpenStats pick for Shawinigan — NSF/ANSI 53 & 42 lead reduction at the tap you drink from
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  • Brita 10-cup Elite pitcher
    Portable NSF Elite lead claim for Shawinigan renters
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  • Brita Elite replacement filters
    Lead claim lives on the cartridge
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  • VARIFY 17-in-1 test kit
    Plant data cannot clear Shawinigan service lines
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  • Waterdrop G3P600 RO system
    When home tests show multiple dissolved issues
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Source · ECCC / municipal open data (seed). Last updated 2026-09-01. Refreshed on the site's automated schedule.