ASTM International, Inc. developed a standardized risk assessment approach to corrective actions in 1995. This process is called Risk Based Corrective Actions (RBCA). Using risk assessment to address environmental corrective actions has become a common approach since the development of the ASTM standard. RBCA changed the way people looked at corrective actions. The view shifted from looking at how much of the chemical of concern can be removed to how much can safely be left.

Each agency specifies the manner and degree to which risk-based techniques are permitted to be applied to a site. Generally, RBCA follows this simplified procedure.

Risk assessment can greatly decrease the cost of environmental remediation at corrective actions sites. By looking at complete and incomplete exposure pathways of the contaminant, the amount of remediation necessary can be calculated.

BJAAM Environmental, Inc. is at the forefront of risk-based corrective actions. Our staff has provided regulator education and assisted government agencies in the development of risk-based programs in Ohio, Puerto Rico, Argentina, and Brazil. BJAAM’s familiarity with the RBCA process and how it ties into individual states’ corrective action requirements enables us to bring sites to No Further Action (NFA) status in the most efficient manner with regard to both time and costs.

The risk assessment services we specialize in are:

  • Groundwater flow modeling
  • Contaminant transport modeling
  • Predicted contaminant loading
  • Plume migration
  • Chemical natural attenuation
  • Geochemical fingerprinting
  • Leaching studies
  • Indoor air modeling
  • Soil contaminant leaching modeling
  • Data validation and management