Well Water Testing Resources – Nova Scotia
Did you know?
Nova Scotia has high rates of naturally occurring arsenic and uranium in groundwater. Approximately 1 in 5 wells in Nova Scotia has arsenic levels above the recommended limit for drinking water.

Common Contaminants
Arsenic
A natural element found in soil and bedrock. Long-term exposure to arsenic in drinking water is associated with increased risk of skin, lung, and bladder cancer.
Uranium
Naturally found in rocks and soil. High levels can lead to kidney toxicity. It is colourless, tasteless, and odourless.
Lead
Usually enters drinking water from plumbing materials (pipes, solder, faucets). It is toxic, especially to young children and pregnant women.
Frequently Asked Questions
How often should I test my well?
Nova Scotia Health recommends testing for bacteria every 6 months and for chemical contaminants (like arsenic and uranium) every 2 years.
How do I collect a sample?
We provide sterile sample bottles and detailed instructions. Generally, you should remove any aerators, run the cold water for 5 minutes, and fill the bottle without touching the inside of the cap or bottle.
Can I tell if my water is unsafe by taste or smell?
No. Many dangerous contaminants, including Arsenic, Uranium, and E. coli, are tasteless, odorless, and colorless. Testing is the only way to know.
What if my results are bad?
If your water exceeds health guidelines, do not drink it. We can help explain the results, and there are many water treatment solutions available from qualified installers to fix these issues.
Don't guess with your health.
Get Your Water TestedProvincial Risk Maps
Uranium in Well Water Risk Map
A comprehensive risk map for Nova Scotia based on observed uranium concentrations in bedrock aquifers. This report highlights high-risk areas, particularly in the South Mountain Batholith and other granitic regions.
View Uranium Risk Map (PDF)Arsenic in Well Water Risk Map
An arsenic risk map for Nova Scotia based on well water concentrations in bedrock aquifers. It identifies high-risk zones, especially in the Goldenville Group and South Mountain Batholith areas.
View Arsenic Risk Map (PDF)