SSTT provides treatment for heavy metals contaminated soil. We use patented field-proven methods that allow for cost-effective disposal or safe on site reuse. Reagents can be added directly into the soil and mixed with either excavators of specialized blending equipment. This process ensures proper reagent contact and dispersion. In another option, soil is first excavated and stockpiled in a central location. Reagents are then added according at the proper dose and blended using either standard hydraulic equipment or specialized mixers.