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Health Information and Tools > Health A-Z >  Water Testing: Understanding your drinking water chemical test results

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Water Testing

Understanding your drinking water chemical test results

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The Alberta Centre for Toxicology tests drinking water to make sure it’s safe to drink. They use the Guidelines for Canadian Drinking Water Quality​ set by Health Canada to report levels of chemicals in your dri​nking water, including those that can be harmful to your health. 

To understand your drinking water chemical ​test results, use the information be​low. Depending on the chemical, the guidelines that are used to test your water can be based on: 

  • Maximum acceptable concentration (MAC): This is about health and safety. It is the highest amount of a chemical in drinking water that is safe for a person to drink. This value is set to protect an average person from getting sick based on the average amount of water we drink.
  • Aesthetic objective (AO): This is about the taste, smell, and look of your drinking water. The AO is used to decide if people will use or drink the water.

If you have any questions about your dri​nking water test results, contact Alberta Health Services Environmental Public Health​.

Talk to your doctor if you have questions about chemicals in your drinking water and if they could affect your health.

Drinking water chemical test results

pH
Sodium
Potassium
Calcium
Magnesium
Total hardness
Total dissolved solids (TDS)
Iron
Total alkalinity
Bicarbonate, carbonate, and hydroxide
Chloride
Fluoride
Nitrite and nitrate
Sulphate

Your drinking water chemical test results will also show results for conductivity, cation/anion sum, ion balance, and percentage difference. These results are only used for lab purposes.





Current as of: December 16, 2024

Author: Safe Healthy Environments, Alberta Health Services

Current as of: December 16, 2024

Author: Safe Healthy Environments, Alberta Health Services