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In 1994, the last package was received, then the storage was closed by the ANDRA in order to prepare the transition into the monitoring phase (planned for a period of around 300 years). The closure of the facility incorporates a waste encapsulation system (known as a cap) designed for watertightness,
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The first waste received in 1969 was hospital waste, in particular radium used for cancer treatment. Initially, storage consisted of burial in ordinary trenches, in the ground. Then the safer and easier storage on the surface was adopted: Concrete blocks are poured around the casks, then covered with
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and water on the surface. For several years, plutonium, radium, thorium, and waste containing tritium from all of the French nuclear power plants had been stored in 6 vaults in a structure called TB2. The leaks would be due to an overflow at the surface of the deep drainage network on the grounds of
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60:(ANDRA)'s inventory, the waste stored includes approximately 1,469,265 packages, corresponding to 527,225 mÂł, mainly from nuclear power generation (nuclear power plants and facilities corresponding to nuclear fuel cycle front end and back end).
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dunes, owned by the army, the decision was made to build the CSM to the east of the La Hague reprocessing plant, in a wetland area called the "Haut Marais". Today, a wetland would never be chosen to house a storage centre.
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In 1996, two official reports showed that the site safety studies were positive. The government's evaluation commission also considers that the site cannot be restored to its initial state even after 300 years (in French
102:(ANDRA: National Agency for Radioactive Waste Management), which had been an entity of the CEA since 1979, took over the centre as an independent public institution (created by the law of 30 December 1991).
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In 1984, storage structures were restored (trenches in the ground and concrete-walled trenches) and packages were taken back and reconditioned, improving their containment.
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The local elected officials did not want the CSM to be managed by a private operator. As a consequence, the CEA controlled the storage facilities until 1991, when the
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Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
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also claims that it contains more than 100 kg of disseminated plutonium, 200 tonnes of uranium, chemicals and heavy metals.
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In 1991, the construction of the centre's roof began. It is intended to protect the packages from water infiltration.
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Content in this edit is translated from the existing French
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showed that data from ANDRA were underestimated. According to this association, actinides are found in the bed of
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Aerial view. At the southernmost end, the reception and administration building. To the west, the
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Radioactive waste casings are stored beneath a waterproof cover itself covered by grassy earth
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In 2003, a decree authorized the centre to enter the transition into the monitoring phase.
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Gestion des déchets radioactifs : les leçons du Centre de
Stockage de la Manche
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Déchets nucléaires dans la Manche: la plainte de
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Proceedings of EuroGeo 1: Geosynthetics: Applications Design and
Construction
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a plastic film and earth. The result of storage on the surface is called a "
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to the source of your translation. A model attribution edit summary is
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In 1976, an accident occurred that caused tritium pollution of the
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rapport ACRO du 22 mai 2006 commandé par
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durability, and protection. The watertightness is achieved by a
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Association de la Qualité de Vie à Ville-sur-Terre (la Q.V.) -
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Agence nationale pour la gestion des déchets radioactifs
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Agence nationale pour la gestion des déchets radioactifs
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heavy rainfalls and malfunctions of the lifting pump.
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a machine-translated version of the French article.
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279:: CS1 maint: multiple names: authors list (
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