Drinking Water Quality and Supply

Chatham-Kent tap water: Grade B, hardness 229 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 average229 mg/L · prov. avg 178 mg/L
Lead vs provincial average0.5 μg/L · prov. avg 0.4 μg/L
Hardness
229 mg/L
Lead
0.5 μg/L
≤ 5 μg/L
pH
8.2
6.5–8.5 range
Hardness
229 mg/L
Very hard
Lead
0.5 μg/L
Max: 5 μg/L
pH
8.2
6.5–8.5
Chlorine
1 mg/L
Max: 4 mg/L
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Reading this page

Chatham-Kent's drinking water earns Grade B (Good). Hardness is 229 mg/L (very hard), and pH is 8.2 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 0.7 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 Chatham-Kent 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

Mixed surface and groundwater

Research confidence: medium

Source waters

  • Lake Erie
  • Lake St. Clair / Chenal Ecarté (Wallaceburg)
  • Thames River corridor systems
  • Groundwater (Ridgetown / Highgate and other well systems)

Treatment plants

  • Chatham-Kent Public Utilities Commission surface plants

    CK PUC operates multiple surface systems including Chatham (also Thamesville/Dresden), South Chatham-Kent, Wallaceburg, and Wheatley plants drawing Great Lakes / connecting-channel waters.

  • CK PUC groundwater systems

    Well-based supplies include Ridgetown/Highgate and Bothwell distribution arrangements documented in municipal DWQMS materials.

Distribution

Chatham-Kent is a geographically large single-tier municipality with several distinct drinking-water systems rather than one citywide plant.

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

Ontario · 123 cities in sample

Hardness (city vs Ontario avg)229 mg/L
pH (city vs Ontario avg)8.2
Lead (city vs Ontario avg)0.5 μg/L
Fluoride (city vs Ontario avg)0.7 mg/L

Provincial average: hardness 178 mg/L · pH 7.5 · lead 0.4 μg/L · fluoride 0.6 mg/L

Full parameters

ParameterReadingHealth Canada guidelineStatus
Hardness229 mg/LNo health limit (aesthetic)Compliant
pH8.26.5–8.5Compliant
Lead0.5 μg/L≤ 5 μg/LCompliant
Fluoride0.7 mg/L≤ 1.5 mg/LCompliant
Chlorine (free)1 mg/L≤ 4 mg/LCompliant
Turbidity3 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 Chatham-Kent — chlorine + hardness

Chatham-Kent pairs 229 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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Source · ECCC / municipal open data (seed). Last updated 2026-09-01. Refreshed on the site's automated schedule.