The first step in the Terrestrial Ecological Evaluation process is to determine if the site (area where contaminants have come to be located) has the potential to pose a risk to wildlife or plants, or affect the soil biota at the site.
Certain site circumstances provide an exclusion from any further ecological evaluation at a site because the contaminants either have no pathway to harm the plants or animals, e.g. they are under buildings or deep in the ground; or there is no habitat where plants or animals live near the contamination; or finally, the contamination does not occur at concentrations higher than is found naturally occurring in the area.
If a site meets any one of these primary exclusions, then the ecological evaluation is complete. If a site does not qualify for an exclusion, the evaluation process must be continued to either:
Make a determination about whether a simplified or a site-specific evaluation is required; or
Compare chemical concentrations in the soil to the Table 749-3 values. If soil values do not exceed the table values, the evaluation is complete for those chemicals.
Follow the links to the Primary Exclusion you would like to review:
Exclusion 1 - Contaminant Analysis
Exclusion 2 - Exposure Pathway Analysis - Incomplete Pathway
Exclusion 3 - Exposure Pathway Analysis - Area of Contiguous Undeveloped Land
Exclusion 4 - Contaminant Analysis - Natural Background
A PDF form is available for documenting your decision-making.
Here you may view an HTML version of the form
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