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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

The closed facility ... was experiencing trench overflow, sometimes called the "bath tub" effect. The glacial till in which the trenches were dug had very low permeability and was therefore initially thought to be good material for reventing waterborne release of nuclides. However, it was difficult to construct the covers over the trenches to have and maintain permeabilities as low as the native soil. Consequently, water percolated through the covers, collected in the trenches and eventually overflowed, at or near the surface, carrying radionuclides with it.  2, fiche 1, Anglais, - trench%20overflow

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol