The soil profile on this site was contaminated with both Asbestos Cement (AC) fragments and Polyfluoroalkyl substances (PFAS) which required treatment of both contaminants. The EPA needed to be involved with the solution pathway and would not allow the soil to leave the site. An onsite solution needed to be found.
With its patented process, Korex mechanically removed Asbestos Cement fragments from the soil profile and implemented additional controls for the team for sifting the soil with PFAS. With the asbestos removed from the soil, Essendon Airport Trust was then able to place the remaining PFAS contaminated soil in manageable windrows on boundary fence lines of the site.
This solution avoided the cost and long term management of a deep burial site and allowed development of public facilities to continue with no future risk.
Our process provided Essendon Airport Trust with an EPA approved solution and savings of at least 70% compared to the cost of onsite deep burial or offsite disposal (had offsite been an option).
The EPA has indicated that in time, there will be options for offsite disposal of PFAS soils. When this is possible, Essendon Airport Trust has identifiable windrows to load out at the cost of only one contaminate in the profile.