Confirmatory Investigation

Confirmatory investigation is the stage of the GAC (Management of Contaminated Areas) where the identification of contaminated areas takes place and the main objective is to verify the  existence of substances above investigation values in the compartments of the environment. These values are verified in standards relevant to the subject.

During this stage, activities are carried out such as the preparation and execution of the definitive plan for the detailed investigation, identification of the goods to be protected, the paths of exposure of the contaminant, analysis of hypotheses for the release of SQIs (chemical substances of interest) from the sources of contamination. That is, the SQIs will depend on the activity that is or was carried out in the place. It is at this stage that surveys, sampling, chemical and physical analyses, of soil and water will be carried out. 

The combination of information obtained in this stage can define and give a new classification to the area, in addition to providing subsidies for the preparation of the next stage, detailed investigation.