In similar application to the in-situ system, ICS has extensive experience in the procurement, installation and activation of ex-situ soil vapor extraction systems.

Activities on these project regularly include underground trenching activities (hand trenching around utilities and under ground structures), trench shoring installation, PVC installation or HDPE welding by trained plumbers, concrete pad construction, security and electrical system installation as well as system start-up.

Ex-situ vapor extraction, in the same context as in-situ vapor extraction, involves the physical stripping of volatile contaminants from the soil using negative (vacuum) pressure. With ex-situ extraction, soil is typically relocated from its native place to an extraction farm where an extraction system (piping and treatment) are installed.

Similar to an in-situ vapor extraction system, the resulting contaminated vapor stream is manifolded through treatment systems, which may include granular activated carbon (GAC), thermal or catalytic oxidizers, wet and dry scrubbers, and internal combustion engines. Vapor is typically released with the removal and movement of the soil from its native source. Regular aeration and active extraction followed by treatment can significantly reduce volatile contaminants; further the process can often be enhanced by injecting heated air into the soil toenhance volatilization of hydrocarbons.

Vapor extraction has the greatest impact on volatile high-end hydrocarbons such as gasoline, as well as TCE, PCE and various other chlorinated solvents. It can also be used in conjunction with groundwater pump and treat systems to enhance the rate of groundwater extraction and volatilization of chemicals from the vadose and saturated zones.