Risk Assessment

Risk assessments are a key component of many environmental regulatory decisions and are often mandated by regulators as part of the site evaluation process.  The results of risk assessments often drive the need for remedial actions and support the derivation of cleanup levels.

EWI’s risk assessment staff has performed and critiqued multi-pathway risk assessments, and derived risk-based remediation goals for sites and facilities under a variety of federal and state regulatory frameworks.

EWI is experienced in providing risk assessment services in the following areas:

  • Risk assessment strategy development and review
  • Comprehensive multi-pathway risk assessments
  • Probabilistic exposure assessments
  • Screening-level risk evaluations
  • Derivation of risk-based cleanup levels
  • Toxicity assessments and data evaluation
  • Research to address sources of uncertainty
A successful risk assessment requires skills in many disciplines, including chemistry, physics, biology, ecology, geology, hydrology, and engineering.  EWI associates have the skills to successfully manage the risk assessment process to each client's benefit.

Related Projects

Petroleum Bulk Plant and Gas Station - Buffalo, Missouri
EWI provided emergency response cleanup and follow-up site characterization at a petroleum bulk plant and gasoline station. Emergency response activities included excavation, installation of two recovery trenches, and the recovery of 75 gallons of free product. Read More