Water testing · 6 min
Lead testing for drinking water
How to test for lead at the tap in Canadian homes — first-draw vs flushed samples, municipal reports vs premise plumbing, and what to do with results.
Looking for a lab or free test option? Find a Water Test · Not sure which system you need? Run the Water Problem Wizard for a recommended stack and installed cost ranges.
Lead is often a plumbing story
Municipal plants may meet guidelines at the plant while older lead service lines, solder or fixtures still elevate lead at the tap. Testing the kitchen cold-water faucet matters more than reading the city average alone.
How labs typically sample
Follow the lab’s instructions. Many lead protocols distinguish a first-draw sample (water sitting in pipes) from a flushed sample. Wrong timing can mislead you about risk and treatment.
Who should prioritize lead testing
- Homes with known or suspected lead service lines
- Older neighbourhoods before or after plumbing renovation
- Families wanting drinking-water reassurance at the kitchen tap
- Anyone installing RO specifically for lead reduction
Treatment after results
Certified point-of-use RO is a common drinking-water strategy. Whole-home approaches depend on the source of lead. Get matched to a vetted installer with your lab PDF or notes.
Related
Pair with our PFAS/lead service page and Find a Water Test (select Lead).