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
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US Water Systems Whole-Home Arsenic & Heavy Metal Adsorption Filter
ResinTech ASM-10-HP selective anion exchange media for fractured bedrock wells with arsenic above guidelines.
$220 USD/yr consumables · premium
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US Water Systems Point-of-Use Arsenic Reduction Cartridge
Under-sink cartridge with selective arsenic reduction media that protects drinking and cooking water only.
$90 USD/yr consumables · budget
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Crystal Quest Whole House Arsenic Removal Filter & Softener
Specialty adsorption media for bedrock and Canadian Shield wells exceeding arsenic guidelines, integrated with water softening to prevent hardness scaling.
$240 USD/yr consumables · premium
Shop this stageFrequently asked questions
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. Arsenic-bearing minerals in fractured bedrock dissolve into groundwater. Concentrations vary sharply between wells only a few hundred metres apart.
How do I know if I have arsenic and uranium?
Common signs include: No visible symptoms at all — only a lab test finds it; Neighbouring wells with past exceedances; Granite, slate or Precambrian shield bedrock. Confirm with an accredited lab before buying treatment gear.
What is the fix for arsenic and uranium?
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
Should I treat the whole house or just drinking water?
Staining, scale, and bacteria risks are usually whole-home issues. Taste, dissolved solids, and some metals can be finished at a kitchen RO tap after the main train is correct.
How do I match this problem to my municipality?
Open the provincial directory and the municipality page if one is published. This guide does not list places from a hardness or depth model.
Related tools
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The checklist matches symptoms you report to catalog equipment. It does not estimate hardness, depth, or cost.
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