Concentric Geoscience directed the remedial excavation of adversely impacted soil associated with two abandoned petroleum USTs at an industrial site in Yorkton, Saskatchewan.  The USTs had been in place since the 1970s and degradation of the underside of the tanks resulted in petroleum impacted soil at the base of the tank nest. Concentric Geoscience field personnel provided real-time direction through verification soil sample screening combined with interpretation of contaminant migration influences such as sub-surface geology and infrastructure. Concentric Geoscience coordinated off-site soil disposal and provided concurrent ESA services in support of a pending real estate transaction planned for the subject property.