Arsenic and uranium
Is there arsenic in my well water?
Fractured crystalline and shield bedrock releases arsenic and uranium naturally. Both are colourless, tasteless and health-based, not cosmetic.
How you notice it
- No visible symptoms at all — only a lab test finds it
- Neighbouring wells with past exceedances
- Granite, slate or Precambrian shield bedrock
Why it happens
Arsenic-bearing minerals in fractured bedrock dissolve into groundwater. Concentrations vary sharply between wells only a few hundred metres apart.
The fix
- Bedrock-specific lab panel: arsenic, uranium, radionuclides
- Whole-home iron-oxide adsorption media, sized on the result
- Point-of-use cartridge if only drinking water needs protection
- Retest annually — levels drift with water table changes
Equipment that solves it
Recommendations are generated from Canadian regional well records. Links are affiliate links — we may earn a commission at no extra cost to you.
US Water Systems Whole-Home Arsenic & Heavy Metal Adsorption Filter
Iron-oxide adsorption media for fractured bedrock wells with metals above guideline.
$220/yr consumables · premium
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US Water Systems Point-of-Use Arsenic Reduction Cartridge
Under-sink option that protects drinking and cooking water only.
$120/yr consumables · budget
Shop this stageWhere this is common in Canada
Regions whose modelled groundwater matches this problem.
Get a sized plan, not a guess
The builder combines your region's hardness, aquifer and depth data with your household size to size every stage and total the cost.
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