All the results were derived from the site model. The range of variation of the hydraulic gradient immediately outside the repository was studied in the direction of the flow routes from the repository. At the location of the repository the flow is governed by the fracture zones R13 and R22, which carry most of the volumetric flow. Selected figures and results The flow model and the regional fracture zones . The discrepancy between the total fluxes at entrance and exit is due to the inaccuracy of the numerical results Pathlines from Repository A .
Red color indicates flow in the intact rock, while black represents flow in a fracture zone.
D1 and D2 label the main discharge areas. Regarding the eastern discharge area D2, the course of the pathlines implies discharging in the proximity of the site model boundary.