A Phase I Environmental Site Assessment (or Phase I ESA) is often linked to the first step in determining if a commercial property may be at risk of contamination. This report is used by buyers and sellers to determine whether the property, or the surrounding area, is at risk of contamination. Learn more about phase 1 environmental Site Assessments online.

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A Phase I ESA is often required by potential buyers to avoid the cost of remediation on contaminated properties once they become theirs. The seller may also use the inquiry to increase the property's marketability.

The Phase II assessment relies on samples and analytic data to assess contamination. The Phase I ESA, however, is based on a variety of information.

The records include information about the previous owners and their uses. There may be signs of contamination if certain types of usage are observed. The same applies to the land surrounding it. It can have an impact on the assessment if it contains documentation that demonstrates contamination or potential contamination.

Aerial photos are often included in the review. These include past and current photos that are compared with current ones to show the timeframe for the development of the property of interest and the surrounding areas.

Inspection of Site – An important part of the overall assessment is the visual inspection of the site, as well as any improvements made. Photographs will be taken and the boundaries of any structures will be inspected. Property boundary measurements will also be observed.