A Phase I ESA is a visual inspection and historical review of a site. We use the Phase I ESA to determine the likelihood of potential environmental issues such as soil or groundwater contamination, or the presence of hazardous or regulated materials in buildings.
A Phase II ESA is an intrusive investigation that further investigates the potential for contamination. Typically the sources of contamination were identified in the Phase I ESA. The Phase II ESA can include soil, groundwater, surface water, sediment and/or air testing and can be completed using a number of different methodologies to accommodate site-specific conditions.
If a Phase II identifies contamination on a property, a Phase III ESA may be required to further assess or delineate the extent of the contamination. The Phase III ESA includes a detailed characterization of the subsurface environment and contaminant plumes. Based on the findings, our engineers can provide remediation or risk management strategies to mitigate the identified risk.