From 19-23 March 2013, were carried out boreholes corresponding to the first zone being treated by in-situ chemical oxidation (ISCO). The boreholes were conducted by the technical staff of the company Sondeos Peñarroya S.L.
Moreover, and in parallel to the implementation of the boreholes for the first injection zone, core samples obtained from these holes were taken. In addition, a surface soil sampling was carried out in the bioremediation zone.
Moreover, the topographic survey of the new boreholes in La CLICA was performed by the technical staff of the company GESTOPO S.C