Studies indicate that reservoir soils will release plant nutrients and salts during the filling period which, in turn. will cause relatively small increases in concentrations of such substances in the reservoirs. After the initial filling period, concentrations of heavy metals, biocides and bacteria in the reservoirs are expected to be low, as they are in other Saskatchewan water bodies. ###>Le ruissellement et la gestion des réservoirs influeront sur les niveaux de sels dissous.