The operation helps to rehabilitate areas affected by waste from the production of lindane in order to prevent and avoid risks to health and the environment._x000D_ It consists of the following actions, to carry out in the landfills of Sardas and Bailín, both sites contaminated by the waste of lindane:_x000D_ — The implementation of new surveys and the maintenance, monitoring and operation of existing sites to pump leachate and dense phase. This dense phase has a high polluting potential. A single liter would render 1 000 000 m³ of irrigation and drinking water useless._x000D_ — The management of waste generated at the two sites, including the management of the dense phase._x000D_ — The application of on-site remediation techniques._x000D_ — The continuation of pollution control tasks, necessary until the final soil recovery goal is achieved.