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Active advisory in Sainte-Marie. Stock a certified pitcher, spare cartridges, and shelf-stable storage until the municipality lifts the notice.
Sainte-Marie tap water: Grade B, hardness 262 mg/L
By OpenStats · Built from official Canadian sources
Regional estimateActive water advisory: Water quality advisory issued 2026-08-12. Distribution system maintenance
B
Water quality grade
Good
Graded against Health Canada drinking water guidelines
Lead within guidelinepH in range
Hardness vs provincial average262 mg/L · prov. avg 183 mg/L
Lead vs provincial average0.6 μg/L · prov. avg 0.3 μg/L
Hardness
262 mg/L
Lead
0.6 μg/L
≤ 5 μg/L
pH
8
6.5–8.5 range
Hardness
262 mg/L
Very hard
Lead
0.6 μg/L
Max: 5 μg/L
pH
8
6.5–8.5
Chlorine
1.1 mg/L
Max: 4 mg/L
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Partner
Lab water test for Sainte-Marie taps
Municipal reports cover the plant. A Tap Score kit tests the water at a Sainte-Marie tap for a broader contaminant panel.
Lab kit partner link. We may earn a commission when tracking is active.
Reading this page
Sainte-Marie's drinking water earns Grade B (Good). Hardness is 262 mg/L (very hard), and pH is 8 against Health Canada's 6.5–8.5 guideline.
Lead at 0.6 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 Sainte-Marie 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: high
Source waters
- Rivière Chaudière (permanent intake; two submerged screens ~2.4 m depth at 1065 rue Notre-Dame Sud)
Treatment plants
Installation de production Sainte-Marie (X2134730)
City vulnerability report (2026): screening, coagulation/flocculation, sedimentation, ozonation, UV reactors, then chlorine gas disinfection and caustic soda pH adjustment. Feeds Saint-Joseph and Bisson reservoirs. MELCC lists chlorination, filtration, ozonation, and ultraviolet.
Distribution
Serves ~13,500 people. Intake ~4 km south of the urban perimeter in an agricultural reach; booster station and dual reservoirs on the distribution side. City publishes annual quality bilans and Chaudière level monitoring.
Health parameters meet Health Canada limits; turbidity above the 1 NTU typical target and very hard water.
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)262 mg/L
pH (city vs Quebec avg)8
Lead (city vs Quebec avg)0.6 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
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 262 mg/L | No health limit (aesthetic) | Compliant |
| pH | 8 | 6.5–8.5 | Compliant |
| Lead | 0.6 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.5 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 1.1 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 2.3 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 Sainte-Marie — advisory filtration
Active advisory in Sainte-Marie. Stock a certified pitcher, spare cartridges, and shelf-stable storage until the municipality lifts the notice.
As an Amazon Associate, OpenStats earns from qualifying purchases.
· Compare options- Shop on Amazon.caBrita water filter pitcherOpenStats pick for Sainte-Marie — certified pitcher while a boil-water advisory is active
- Shop on Amazon.caBrita replacement filtersKeep spare cartridges on hand
- Shop on Amazon.caReliance Aqua-Tainer 7 galShelf-stable backup storage
- Shop on Amazon.caVARIFY 17-in-1 test kitRe-test when the advisory lifts
Source · ECCC / municipal open data (seed). Last updated 2026-09-01. Refreshed on the site's automated schedule.