Our technical services can be grouped into two components, subsurface investigations and soil and groundwater remediation. A subsurface investigation, also known as a Phase II Environmental Site Assessment, is often required to determine if suspected uses have undermined the environmental integrity of a Site. Soil and groundwater monitoring and testing are necessary to quantify and delineate the extent of contamination at Sites where a release has been confirmed, such as in response to a leaking underground storage tank.