At the site of a former industrial facility, chlorinated solvent contamination was discovered deep below ground, locked into a tight silt formation. The client attempted air sparging and soil vapor extraction multiple times to remove the contaminants, but to no avail—they were unable to strip out any of the volatile organic compounds (VOCs).

Cascade was brought in by the client to install additional wells and enhance the permeability of the subsurface via pneumatic fracturing and sand proppant injection. Learn how our crews tackled the project and the results their work achieved.