The underground mine treated 52,000 tons of ore at 0.94%, which furnished 49 t of uranium; the surface mine treated 4,000 t of ore at 1.4%.

From 1958 to 1969, 80,000 tons of wastes were deposited in metal drums, and each layer of drums was covered by steriles from the mine. The pile of drums, six meters in height [Cogéma 91a], is composed of:

--48,000 drums from the Sicn and Cerca plants containing 10,400 t of graphite, quartz, and sludge from sanding (0.1 TBq of radium 226);

--some hundreds of drums of earth and gravel from the pilot reprocessing plant at Fontenay;

--32,600 drums from le Bouchet containing 5,600 t of treatment residues (2.8 TBq of radium 226 and 228). The residues "are composed of the waste rock resulting from the attack of thorium ore or of the [sludge at the] feet of the precipitation column of nitric solutions of uranium and thorium."

The hole left by the surface mine has been filled. Above the wastes, have been placed "a layer of impermeable compacted material 50 cm in thickness" and a layer of seeded vegetable earth 60 cm in thickness." The site has been fenced [Andra 00].

                                                                                                        Revised 10/8/01