Upgrading the landfill drainage: Restoring the function of the surface drainage of landfill bodies II and III on the landfill site of the waste disposal company of the LH Wiesbaden. Obvious barriers (depressions, hollows, soil heaps, etc.) in the hollows are to be removed in order to ensure the reliable drainage of surface water in the planned drainage systems. It is also necessary for the commissioned contractor to provide qualified personnel for the project who can act independently with a view to the objectives of the current project. For further descriptions, please refer to the documents available for download. (EXPIRED)