Bioremediation is a physical process where soils are excavated and formed into a windrow or biopile to enable testing and management of the environmental conditions combined with the potential addition of microorganisms cultures to enhance the breakdown of pollutants/contaminants within the soils matrix. Bioremediation is a very cost effective method of remediation and is most successful when dealing with TPH and Polycyclic Aromatic Hydrocarbons (PAH's) contaminants. Based upon the contaminants present within the soils bioremediation may be aerobic (oxygen is provided) or anaerobic (where an additive is added to deplete oxygen).

Bioremediation is a very cost effective solution to many contaminated land issues but also requires a relatively large footprint to be successful (dependent upon treatment volumes).