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Woodstock Drinking Water Quality
By OpenStats · Built from official Canadian sources
Regional estimateC
Water quality grade
Fair
Graded against Health Canada drinking water guidelines
Lead within guidelinepH in range
Hardness vs provincial average155 mg/L · prov. avg 182 mg/L
Lead vs provincial average0.3 μg/L · prov. avg 0.4 μg/L
Hardness
155 mg/L
Lead
0.3 μg/L
≤ 5 μg/L
pH
7.3
6.5–8.5 range
Hardness
155 mg/L
Hard
Lead
0.3 μg/L
Max: 5 μg/L
pH
7.3
6.5–8.5
Chlorine
0.8 mg/L
Max: 4 mg/L
From source to sink
Where Woodstock 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 Woodstock water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityWoodstock
Municipal service area
- Treatment plantWoodstock / Oxford County well supplies
Approximate pin near Woodstock (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Where it starts
Groundwater
Research confidence: medium
Named source waters
- Local aquifers (Oxford County / Woodstock wells)
Treatment plants
Woodstock / Oxford County well supplies
Municipal supply from groundwater wells with disinfection; Oxford County and the City coordinate water services for Woodstock’s urban system.
How it reaches your street
City/county distribution with reservoirs and booster stations; hardness characteristically high on limestone aquifers.
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Reading this page
Woodstock's most recent drinking water sample (2026-07-22) reports hardness of 155 mg/L, classified as hard, and pH 7.3, drawn from a mixed water source and treated at Woodstock Water Treatment Plant. Lead measured 0.3 μg/L and fluoride 0.7 mg/L.
Free chlorine measured 0.8 mg/L in this sample. No E. coli was detected in this sample.
Woodstock's hardness of 155 mg/L is below the Ontario average of 182 mg/L across 51 tracked municipalities, with a provincial average pH of 7.5.
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.
One or more parameters exceed a Health Canada drinking water guideline or turbidity target.
Figure 1 · From source to sink
How drinking water reaches your tap
Compared to provincial average
Ontario · 51 cities in sample
Hardness (city vs Ontario avg)155 mg/L
pH (city vs Ontario avg)7.3
Lead (city vs Ontario avg)0.3 μg/L
Fluoride (city vs Ontario avg)0.7 mg/L
Provincial average: hardness 182 mg/L · pH 7.5 · lead 0.4 μg/L · fluoride 0.6 mg/L
Full parameters
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 155 mg/L | No health limit (aesthetic) | Compliant |
| pH | 7.3 | 6.5–8.5 | Compliant |
| Lead | 0.3 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.7 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 0.8 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 3.6 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 →Drinking water filters and test kits
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- Shop on Amazon.caShower filterChlorine at the showerhead
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Source · ECCC / municipal open data (seed). Last updated 2026-07-22. Refreshed on the site's automated schedule.