Samples of soils and/or groundwater are taken during environmental characterization activities conducted on the surveyed property.
Phase 2 is referred to as the preliminarily environmental characterization, whereas phase 3 is referred to as the complementary environmental characterization. If signs of contamination are detected on the property during phase 2 completion and the level of contamination is required to better plan for the decontamination work, a second environmental characterization can be carried out solely for the contaminated area. That is the phase 3 complementary environmental characterization.
Phase 3 is therefore required in some cases to better determine the surface and depth of contamination, to better budget and plan for the decontamination work.
All environmental characterizations are conducted in accordance with the provisions of the CSA Z769-01 standard of the Canadian Standards Council and in compliance with the specifications issued by the MDDELCC.