Site Investigation and Characterization

Fully understanding the magnitude and potential risks of contamination on a property is critical to creating an effective cleanup or risk mitigation strategy. 

EPI conducts in-depth site investigations and characterization for a broad range of clients throughout the United States. We investigate sites ranging from small, uncomplicated properties to state or EPA-ordered complex multi-property multi-party remedial investigations including State and Federal Superfund sites. We understand that no two sites are the same. We have investigated sites with a range of contaminants or mixtures of contaminants including petroleum hydrocarbons, chlorinated solvents, metals, PCBs, and other contaminants in air, soil, groundwater, surface water, and sediment.

We specialize in evaluating the fate and transport mechanisms of contaminants to develop comprehensive conceptual site models.  This process allows us to identify exposure pathways and receptors and, in turn, formulate cleanup strategies to satisfy regulatory objectives. It all goes back to understanding the problem.

In our experience, the primary reason remedial actions fail is because of incomplete site characterization. It is not possible to design a solution without fully understanding the problem.

We believe our clients should be engaged in the site investigation process. EPI works closely with our clients so they understand the process and are engaged in the project, ensuring that we achieve their site goals.  Involving our clients gives a deeper understanding of the eventual result and how to respond.

Site investigation and characterization services we provide include:

  • Soil and Groundwater Characterization, Investigation, and Assessments
  • Remedial Investigation and Feasibility Studies
  • UST/AST Investigation, Decommissioning, and Site Assessments
  • Vapor Intrusion Studies, Indoor Air Investigations, and Mitigation Support
  • Waste Disposal Support
  • Terrestrial Ecological Evaluations
  • Landfill Gas Monitoring