The Object Of This Contract Is The Execution Of The Removal Of Materials Containing Asbestos In Atl'S Facilities. Stage Three - Removal And Replacement Of Cover In The Area Of ​​The Arrival Works. - Removal And Replacement Of The Drain Pipe In The Area Of ​​The Recovery Work, Auxiliary Building, Sitges Area And The Access Chalet. - Removal And Replacement Of Water Pipes In The Lower Galleries In The Area Of ​​The Decanters For Fire Pumps. - Removal Of A Piece Of Pipe In The Lower Galleries Of The Area Of ​​The Decanters. - Removal And/Or Replacement Of Pipes Embedded In The Walls In The Lower Galleries Of The Area Of ​​The Decanters. - Removal And Replacement Of Aeration Pipes From The Roof In The Area Of ​​The Exploitation And Chlorine Building. Ed Trinidad - Removal And Replacement Of Several Drainage Pipes. Etap Llobregat -Removal And Replacement Of Several Roof Drain Pipes