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Grand Falls-Windsor Drinking Water Quality
By OpenStats · Built from official Canadian sources
Regional estimateB
Water quality grade
Good
Graded against Health Canada drinking water guidelines
Lead within guidelinepH in range
Hardness vs provincial average189 mg/L · prov. avg 141 mg/L
Lead vs provincial average0.5 μg/L · prov. avg 0.3 μg/L
Hardness
189 mg/L
Lead
0.5 μg/L
≤ 5 μg/L
pH
7.2
6.5–8.5 range
Hardness
189 mg/L
Very hard
Lead
0.5 μg/L
Max: 5 μg/L
pH
7.2
6.5–8.5
Chlorine
1 mg/L
Max: 4 mg/L
From source to sink
Where Grand Falls-Windsor water comes from
Lakes, rivers, wells, and treatment plants behind the kitchen tap, in plain language. Chemistry grades above are a separate lab snapshot; this section is the route the water travels.
Open the full tap storyOn the map
Where Grand Falls-Windsor water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityGrand Falls-Windsor
Municipal service area
- Treatment plantExploits Regional Water Treatment Plant (New Bay Road)
Approximate pin near Grand Falls-Windsor (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Where it starts
Surface water
Research confidence: high
Named source waters
- Northern Arm Pond / Exploits regional surface system
Treatment plants
Exploits Regional Water Treatment Plant (New Bay Road)
Conventional plant (1995): hydrated lime pre-treatment, alum coagulation, plate settlers, multi-media filters, gas chlorination, lime post-pH. Design ~27.5 ML/d; orthophosphate corrosion control added ~2025.
How it reaches your street
GFW operates plant for region serving GFW, Bishop's Falls, Botwood, Peterview, Northern Arm (~23,000 people).
SponsoredAlso consider
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Best for hardness ≥ 180 mg/L
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Confirm mg/L before sizing a unit
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Partner
Lab water test for Grand Falls-Windsor taps
Municipal reports cover the plant. A Tap Score kit tests the water at a Grand Falls-Windsor tap for a broader contaminant panel.
Lab kit partner link. We may earn a commission when tracking is active.
Reading this page
Grand Falls-Windsor's most recent drinking water sample (2026-07-22) reports hardness of 189 mg/L, classified as very hard, and pH 7.2, drawn from a groundwater water source and treated at Grand Falls-Windsor Water Treatment Plant. Lead measured 0.5 μg/L and fluoride 0.6 mg/L.
Free chlorine measured 1 mg/L in this sample. No E. coli was detected in this sample.
Grand Falls-Windsor's hardness of 189 mg/L is above the Newfoundland and Labrador average of 141 mg/L across 4 tracked municipalities, with a provincial average pH of 7.3.
These readings summarize a single compliance snapshot, not a certification of the water reaching your tap. Test your own water periodically, especially on a private well, and consider a softener if hardness is classified hard or very hard.
How to use this page: read the headline metrics first, then where the water comes from (map and tap story), then the parameter table and source footer.
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 · From source to sink
How drinking water reaches your tap
Compared to provincial average
Newfoundland and Labrador · 4 cities in sample
Hardness (city vs Newfoundland and Labrador avg)189 mg/L
pH (city vs Newfoundland and Labrador avg)7.2
Lead (city vs Newfoundland and Labrador avg)0.5 μg/L
Fluoride (city vs Newfoundland and Labrador avg)0.6 mg/L
Provincial average: hardness 141 mg/L · pH 7.3 · lead 0.3 μg/L · fluoride 0.6 mg/L
Full parameters
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 189 mg/L | No health limit (aesthetic) | Compliant |
| pH | 7.2 | 6.5–8.5 | Compliant |
| Lead | 0.5 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.6 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 1 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 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 →Water softeners for hard water
Very hard water. Whole-house softeners are the high-ticket fit; salt and test kits support the install.
As an Amazon Associate, OpenStats earns from qualifying purchases.
· Compare options- Shop on Amazon.caWhole-house water softenerBest for hardness ≥ 180 mg/L
- Shop on Amazon.caSoftener saltOngoing supply (high repurchase)
- Shop on Amazon.caWater descalerScale reduction without salt
- Shop on Amazon.caWater hardness test stripsConfirm mg/L before sizing a unit
- Shop on Amazon.caTDS meterQuick dissolved-solids check
Source · ECCC / municipal open data (seed). Last updated 2026-07-22. Refreshed on the site's automated schedule.