Duncklee & Dunham has utilized the Risk Calculator Tool (RCT), developed by the North Carolina Department of Environmental Quality (NCDEQ), for various sites in a multitude of scenarios.  We regularly attend available training sessions hosted by the NCDEQ and stay up to date on the latest updates to the RCT.  Since the RCT was made available to the public in 2015, Duncklee & Dunham has used the RCT to calculate site specific alternative remedial goals, evaluate preliminary contaminant-migration models, address vapor-intrusion concerns, evaluate cumulative site risk, and achieve site closures. 

Most recently, Duncklee & Dunham has used the RCT to conduct a human health risk assessment for the users of an urban greenway located in central North Carolina.  We calculated site specific remedial goals to achieve acceptable risk levels and determined an excavation of approximately 1,000 tons of contaminated soil was needed to meet these goals.  These goals helped to ensure that there was no unacceptable risk to users of the greenway trail, while keeping remedial costs to a minimum.

If you have a site where you are considering risk-based remediation or want to know if your site is eligible for a risk-based closure approach, contact us today.