Glossaire de A à Z
Partial view of the water status, which gives rise to control operations, the results of which are used by an assessment to determine quality indicators. The quality element is described by a parameter or set of parameters (parameter group). The list of quality elements is defined in Annex 5 of the
Value corresponding to the quantification threshold, i.e. the value below which the laboratory is unable to accurately determine the amount of the parameter looked for. The quantification minimum is the smallest value at which there is a measurement result with sufficient accuracy.
Estimate of the balance between, on the one hand, abstractions and needs related to supply inputs to surface water, and on the other, the natural recharge of groundwater. The quantitative status has two classes: good and poor. Good quantitative status of groundwater is achieved when abstractions do not exceed the turnover capacity of the available resource, taking into account the necessary supply inputs to surface water ecosystems, directly dependent sites and wetlands.
Value (flow rate of streams, groundwater level, reserve storage, etc) necessary for the quantitative management of the resource. The quantity goals are set to achieve a satisfactory balance between the demands of human activities and the requirements of aquatic environments on the one hand; and the surface and groundwater resources that can be mobilized, on the other. At nodal points, these values are the