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306-3 Significant spills.

Direct answer: During 2020, one spill was considered significant. A significant spill is defined as a spill that requires a subsequent remediation intervention in the area at a cost of more than €10,000. The spill occurred in November,

in Avenida de los Artesanos Nº6 Tres Cantos (Madrid, Spain), with a volume of 700 litres of diesel due to a failure of the level probe of the pressure group located on the roof of the building. The spillage did not occur on the ground, but on the roof of the building. The spillage is considered significant because of the cost associated with the management of the waste generated and not because of the damage caused to the environment, since according to the regulations of the Autonomous Community of Madrid, the amount discharged into the sewerage system is considered to be minor. All necessary containment, clean-up and remediation measures were implemented.