Evaluation of the impact of the Nogent nuclear power plant on the Paris area water supply system

The starting up of a nuclear power plant in NOGENT S/SEINE upstream of the main Paris area surface water intake stations led the Seine Normandy Basin Agency and the main water utilities involved to pay attention to the eventual consequences of this nuclear plant on the drinking water supply system of the area. The river Seine itself represents one half of the drinking water resources of the area, more if the intake from the alluvial water table downstream from the capital is taken into account. A working group, run by the Basin Agency and associating the town of Paris, the Ile de France Waterboard, the Compagnie Generale des Eaux, and the Societe Lyonnaise des Eaux was created in 1983 to study the possible impact of the nuclear plant. The main preoccupations which this study highlighted led to the studies and equipments programme this paper presents. (author)