York Durham Regional Environmental Lab

The Regional Municipality of Durham operates the York-Durham Regional Environmental Lab (REL). The REL is at the Duffin Creek Water Pollution Control Plant, 901 McKay Road, Pickering. York and Durham regions own and operate the REL together.

The facility is accredited by the Canadian Association for Laboratory Accreditation to ISO/IEC 17025, and is licensed to test drinking water by the Ministry of Environment and Climate Change.

The lab employs highly skilled staff who use advanced testing equipment. The REL provides analytical services for:

• Drinking water monitoring
• Wastewater monitoring
• Industrial monitoring

We have experts in fields of:

• Microbiology
• Inorganic chemistry
• Organic chemistry

Common testing packages for home owners are:

• Lead testing
• Drinking water testing
• Wastewater testing
• Well water analysis
• Bacteriological air quality

Fees for the testing services are updated annually.

Are you bringing in a drinking water sample for testing? Review the Ministry of Environment and Climate Change's Practices for the Collection and Handling of Drinking Water Samples. The standard wait for results is 10 business days. The wait may change depending on the test. REL is open Monday to Friday. Are hours are from 8 a.m. to 5 p.m. We are closed on statutory holidays.

For more information, contact us.