SKA Consulting, L.P. was retained to perform site investigation activities adjacent to an active drill pad located in Madison County, Texas.

SKA conducted a subsurface investigation adjacent to an active drill pad that consisted of approximately 800 linear feet of a natural drainage pathway through native brush and trees.  An inadvertent release of frac fluids occurred from a frac tank located on the drill pad and flowed down the natural drainage pathway.  The operator conducted immediate soil response actions once the leak was discovered.  SKA subsequently conducted a Site Investigation that consisted of subsurface soil sampling via the installation of numerous shallow soil borings advanced with a stainless steel hand auger and testing of surface and near-surface soil samples to confirm or deny if adverse environmental impacts to native soils remained within the natural drainage pathway on the site (i.e., confirmation soil sampling).  Based on the initial soil sampling, selected areas (i.e., soil boring locations) required additional soil response actions due to elevated concentrations of constituents.  As such, SKA had to conduct additional confirmation soil sampling and testing within these specific areas.

The confirmation soil samples were analyzed in the testing laboratory for a variety of organic and inorganic constituents of concern.  The analytical testing results were then compared to the Texas Commission on Environmental Quality (TCEQ) Texas Risk Reduction Program (TRRP) Tier I Residential Protective Concentration Levels (PCLs) (i.e., most conservative approach).

Based on the results of the site investigations performed by SKA, sufficient data was obtained to provide to the RRC and property owner concluding that all necessary soil response actions were successfully completed.