By OpenStats · Built from official Canadian sources
Regional estimateWater quality grade
Good
Graded against Health Canada drinking water guidelines
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Municipal reports cover the plant. A Tap Score kit tests the water at a Lachute tap for a broader contaminant panel.
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Lachute's drinking water earns Grade B (Good). Hardness is 133 mg/L (hard), and pH is 7.1 against Health Canada's 6.5–8.5 guideline.
Lead at 0.5 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
How Lachute 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.
Groundwater
Research confidence: high
Usine Dudany / Poste de production d'eau potable — Ville de Lachute
MELCC registry: chlorination and ultraviolet disinfection (X2118199). 2020–2021 upgrade added biological filtration for iron and manganese (~$5.2M) to cut coloured-water episodes. Also feeds Brownsburg-Chatham distribution.
Serves Lachute and Brownsburg-Chatham. City publishes source vulnerability docs, annual quality bilans, and coloured-water guidance; filtration station and main replacements address sediment remobilization.
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
Quebec · 34 cities in sample
Provincial average: hardness 183 mg/L · pH 7.5 · lead 0.3 μg/L · fluoride 0.6 mg/L
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 133 mg/L | No health limit (aesthetic) | Compliant |
| pH | 7.1 | 6.5–8.5 | Compliant |
| Lead | 0.5 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.5 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 1 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 1.4 NTU | ≤ 1 NTU (typical target) | Exceeds guideline |
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.
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Lachute pairs 133 mg/L hardness with 1.0 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.
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