Following a truck accident on one of the main motorways in northern Italy, about 3,000 L of 1,2-dichloropropane was released into the ground, causing an immediate contamination of the soil and groundwater. 55,000 kg of EHC® Reagent was injected into a triangular grid of 42 injection points from one to six meters bgs.
The site’s remedial goal was to achieve at least a 90 percent reduction in 1,2-dichloropropane compared to baseline concentrations. Data confirmed an effective EHC lifespan of at least three years allowing the successful long-term treatment of the site’s clayey formation.
This paper describes the implementation and results of the treatment that lead to site closure in 2015.