Lead in Water: Testing, Risks and Drinking Water Compliance

Summary: Lead testing helps assess drinking water quality and identify contamination associated with older plumbing systems, including pipes and taps. It supports measures to protect water users and assess compliance with applicable requirements.

BJL Laboratoires provides lead testing in water to assess water quality, investigate plumbing-related contamination and support professionals with their compliance assessments.

What Is Lead Testing in Water?

Lead testing measures the concentration of lead in drinking water or water used for other purposes. It can identify contamination associated with materials in contact with water, particularly in older plumbing systems.

Why Test Water for Lead?

Assess compliance with applicable drinking water requirements
Identify potential exposure risks for occupants and water users
Check the effects of plumbing work or renovation
Monitor the effectiveness of corrective measures
Help protect vulnerable groups, including children and pregnant women

Where Does Lead in Water Come From?

Potential sources include:

Older lead pipes
Solder and pipe fittings
Taps and plumbing fixtures
Other materials in contact with water

What Types of Water Can Be Tested?

Drinking water in homes, residential buildings and public facilities
Water from internal distribution systems, including risers and draw-off points
Water used for industrial or technical purposes

How Does Lead Testing in Water Work?

Define the sampling strategy: first-draw, flushed or stagnation sampling, depending on the objective
Collect water samples on site
Analyse the samples in the laboratory
Interpret the results in relation to the sampling conditions and purpose of the investigation
Issue a laboratory test report to support decision-making

👉 For a sampling kit with online pricing, see our lead water testing kit.

A Service Tailored to Investigations and Compliance Assessments

Advice on sampling methods appropriate to the objective
Traceability of samples and sampling conditions
Clear results to support timely decisions
Assistance with identifying appropriate corrective measures

How Much Does Lead Testing in Water Cost?

The cost depends on the number of samples, the sampling method and the scope of the service.

👉 See also: lead testing prices.

View the Lead Water Testing Kit

FAQ – Lead in Water

Is lead in water harmful?
Yes. Lead is toxic, particularly for children and pregnant women.

How can I find out whether my water contains lead?
Laboratory testing measures the lead concentration in a water sample. The sampling method should be selected to match the purpose of the assessment.

When should water be tested?
Testing may be appropriate when contamination is suspected, after plumbing work or when investigating older buildings.

What should I do if lead is detected?
The results should be reviewed alongside the sampling conditions to identify the source and determine appropriate corrective measures. These may include replacing lead-containing plumbing components or selecting a suitable water treatment solution.

Lead Testing in Water in Paris and Île-de-France

BJL Laboratoires supports professionals, local authorities and property managers with lead testing in water across Paris and Île-de-France.

Related Services

Lead testing services | Lead dust testing | Lead testing prices | Lead water testing kit

BJL Laboratoires – lead testing in water to help protect users, support informed decisions and assess compliance with applicable water quality requirements.

👉 This service forms part of our wider offering: explore our lead testing services.