2024-05-16 · Garson · Full Time · Permanent · Geological and mineral technologists and technicians · Testmark Laboratories Ltd is a leader in the provision of environmental lab testing with 5 laboratories across Ontario. We specialize in the testing and assessment services including, but not limited to, air, drinking water & wastewater, fish tissue & biota, arson & forensic, geochemistry, oil and toxicology. Testmark takes pride