Contaminated Site Classification and Reporting

For more than a decade, BluMetric has been retained to investigate and monitor six former dumpsites located on the Kahnawà:ke Mohawk Territory (KMT) in Kahnawà:ke, Quebec. Initially, BluMetric completed hydrogeological characterization at the sites and has since performed environmental groundwater monitoring programs and other complementary work.

The primary objectives of the monitoring programs were to determine the extent of groundwater contamination and to update the site plans to include recent changes to land features and infrastructure.

BluMetric has also:

• Characterized the hydrogeological and hydrogeochemical properties of bedrock aquifer
• Defined preferential pathways for contaminant migration (surface water/groundwater)
• Defined potential risks to surrounding receptors (water users) at the site
• Classified the sites using the National Classification System for Contaminated Sites (NCSCS)
• Developed a SiteFX database into which all monitoring program data is entered

Complementary work for this project has included the installation of new wells, pumping tests of private wells, a literature review on natural groundwater quality, and additional pumping tests to establish the best remedial alternative at the most critical sites. BluMetric also conducted an analysis of radioactivity in groundwater at the six former dumpsites to provide supplementary analyses based on the radioactivity screening results for Gross alpha and Gross beta obtained during the groundwater monitoring program.