A Phase II ESA is an assessment of a property conducted in accordance with the regulations by, or under the supervision of, a qualified consultant to determine the location and concentration of contaminants on the property.A Phase II ESA is generally undertaken under the following circumstances:
- If the property is used, or has ever been used, in whole or in part for an industrial use or any of the following commercial uses: a garage; a bulk liquid dispensing facility, including a gasoline outlet; or for the operation of dry cleaning equipment
- If a potentially contaminating activity is identified on, in or under the property during the Phase One ESA.
A Phase II ESA is made up of the following five components: planning the site investigation; conducting the site investigation; interpretation and evaluation of the information gathered; preparation of a written report; and submission of the report to the property owner/client.
When planning a site investigation, the consultant prepares a sampling and analysis plan in accordance with regulatory objectives and requirements. This plan requires an assessment of the property and all media where contaminants may be present including each of the locations associated with a recognized environmental condition and any contaminants identified, up to the time of sampling, during the Phase II ESA.
Soil, sediment and ground water are generally sampled, by or under the supervision of a consultant, and analyzed by an accredited laboratory from all areas where a contaminant may be present at a concentration greater than the applicable site condition standard.
Details regarding actions taken to reduce the concentration of contaminants on the property, including confirmation sampling, is often documented in the Phase II ESA report.