The purpose of a subsurface investigation is to determine if significant environmental impacts exist that may warrant corrective action or remediation. Our team of experienced geologists, environmental engineers, and scientists will develop the right scope of work to investigate existing or potential environmental concerns. We can perform investigations to determine the nature and extent of contamination in soil, groundwater, soil vapor/gas, indoor air, and surface water at your property. CSE understands that you are looking for the most value for the investigation performed, and we work to perform the minimum investigation to get answers to the environmental concerns at your property. Therefore, we design a custom scope of work to obtain the necessary information with a limited number of samples and locations. Properties that are recommended for subsurface investigations may commonly include the current and historical use of the property or nearby properties for:

• Dry cleaning operations
• Printing Operations
• Manufacturing and Industrial Purposes
• Landfilling
• Gasoline Dispensing and Automotive Repair Service Stations
• Underground Storage Tank (UST) and Aboveground storage tank
• Hazardous material storage
• Oil and Gas production
• Non-Reportable releases of oil and hazardous materials (i.e., evidence of leaks, spills, or staining)

The process may include:

• A review of readily available regulatory data and historic site investigative information,
• Third-party review of previous investigative reports prepared by others.
• Evaluation and determination of probable contaminants of concern
• The collection for analyses of soil, groundwater, surface water, soil gas/vapor, and indoor air quality samples as designed for your particular transaction or purpose
• Vapor Intrusion Assessments
• Test Pitting
• The interpretation and evaluation of site geology, soils and groundwater characteristics
• The evaluation of analytical data and the comparison of regulatory standards
• Evaluation of the flow direction of groundwater and its availability as a drinking water source.
• Contaminant Fate and Transport Modeling
• Risk Assessment and Exposure pathway evaluation of the migration of contaminants relative to ecological and human health receptors

Once the results are received, CSE’s experienced consultants will assess and interpret the results to determine next steps regarding whether additional investigative activities, temporary mitigation and/or remediation are warranted. Reporting to the client can be designed to include the results of the subsurface investigation, any recommendations, and the anticipated associated costs.