Description

Very low groundwater flow rates are expected in the intact Opalinus Clay due to the very low hydraulic conductivity. Isotope profiles are indicative of a diffusion-dominated system; i.e. they are compatible with the assumption of negligible groundwater flow in the past.

OPA Category

Category as used in the OPA assessment

OPA host rock

OPA Number

Number as used in the OPA assessment

2.07

NEA V1 IFEP Reference(s)

Related IFEPs from the NEA V1 IFEP list from 1999

2.2.02, 2.2.07