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The state of Nevada plans to file 250 contentions opposing the licensing of a nuclear waste repository at Yucca Mountain, an attorney for the state said December 4. Martin Malsch told a National Academy of Sciences board that the contentions will include challenges to the completeness of the respository design submitted to NRC in June. Some also will challenge DOE's reliance on titanium drip shields installed over the waste packages to meet regulatory requirements on radiation releases at the site, he said. The shields, which DOE plans to install after the waste packages are moved into repository tunnels, are to protect the waste packages by preventing water from dripping on them and blunting any impact from falling rocks. However, Malsch said a repository at Yucca Mountain would not meet regulatory requirements if the drip shields are not installed as planned or if they are installed improperly. http://www.platts.com/Nuclear/News/7499340.xml?p=Nuclear/News&sub=Nuclear