Preliminary Assessments | Region 10 | US EPA

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Preliminary Assessments

Preliminary Assessments are a limited-scope investigation designed to distinguish between sites that pose little or no threat to human health and the environment and sites that require further investigation. Preliminary Assessment investigations collect readily available information about a site and its surrounding area. They also identify sites requiring assessment for possible emergency response actions. If the Preliminary Assessment results in a recommendation for further investigation, a formal Site Inspection is performed.


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