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Risk Assessment/Remediation
A release of petroleum or other chemicals on a property requires informed decision-making to protect human health and the environment. Risk assessment is an evaluation of the potential or actual impacts of such a release to both environmental and human receptors.
The risk assessment process is usually triggered by the suspicion or confirmation of a release. The sequence of events may be like this:
- When a chemical release is reported, a site assessment is performed.
- Information about the medium affected (soil, soil vapor, or groundwater) is gathered.
- Models are used to predict the fate and transport of chemicals in soil, soil vapor, and groundwater. These models help us arrive at the best corrective action based on estimated rates of chemical migration and attenuation.
- Exposure pathways and future planned uses of the site are evaluated.
- Chemical concentrations are compared with published health risk criteria, and carcinogenic and non-carcinogenic risks are evaluated.
- Risk-based cleanup criteria are developed and cleanup options are evaluated.
- A remedial action plan is developed to cost-effectively achieve set cleanup levels.
  Risk assessment
and risk-based corrective action are rapidly evolving disciplines. The EBS Principal sits on the American Society for Testing and Materials (ASTM) committee developing nationally recognized standards of practice for risk assessment. EBS uses guidance from ASTM for all aspects of a project.
EBS has extensive experience with both "traditional" and "cutting edge" remedial technologies for both soil and groundwater. Remediation services that we offer include:
- Bioremediation (soil and groundwater)
- Air sparging
- Vapor extraction
- Dual-phase extraction
- Groundwater treatment
- Excavation and on- or off-site treatment (thermal desorption)
EBS also assesses and conducts remediation of asbestos and lead-based paint.
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Risk Assessment/