Water Testing for Lead
Flushing and Testing for Lead in Drinking Water
As required by Ontario Regulation 243/07, Schools, Private Schools and Day Nurseries are required to carry out annual sampling and testing for lead. To view the Ministry of Environment’s Guide: “Flushing and Testing for Lead in Drinking Water” please visit this URL.
How long are records kept?
Records on flushing and testing must be kept for six years. The records for the most recent two years of flushing and testing must be available at the site of the facility for inspection by any member of the public during business hours, free of charge.
Elementary School Reports
Secondary School Reports
Weekly or Daily Flushing
Who Should Flush Their Plumbing
All schools, private schools and child care centres
How Often Should Plumbing Be Flushed?
How often you flush depends on several factors including:
- the age of the plumbing in the building
- lead test results from previous drinking water sampling
- the location and use of drinking water fixtures
- if there is an NSF certified filter installed on a drinking water fixture
DAILY – Flush daily if:
WEEKLY – Flush weekly if:
Applicable to all fixtures, except for “end of branch” taps. Flushing is not required for:
- To review this regulation, please visit the province’s website
- Safe drinking water in schools – fact sheet for parents/guardians