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Holtec casks with arrows pointing to small cooling vents, Diablo Canyon, NPS, NRC gov

If you think that transferring the spent nuclear fuel from spent fuel pools to “dry casks”, as it is currently done, is a magical solution – think again. Read about the problems with spent nuclear fuel canister systems currently in use in the Sierra Club letter below, as well as at: https://sanonofresafety.org And, do a search for Holtec and Areva in the search window of our blog (Mining Awareness). Both Holtec and Areva canisters are too thin; welded shut, and with no pressure monitor in the lid. This is in stark contrast to German Castor which have a pressure sensor between two lids and a temperature sensor, as well as being much, much thicker. They are also stored inside a building, whereas most US spent nuclear fuel appears to be stored outside. Welded shut, the Areva and Holtec casks cannot be opened for checking without cask destruction, whereas the Castor have bolted lids and can be reopened. See: https://sanonofresafety.files.wordpress.com/2012/05/urgentnuclearwastecanisterproblems.pdf
Welded shut Holtec and Areva spent fuel canisters stand in stark contrast to the German CASTOR where a “pressure sensor continuously measures pressure in the gap between the primary and secondary lid“, and the “system is wired to [the] Main Dosimetry Control Room“. There is a temperature sensor for continuous surface temperature monitoring, too. See “Operational Experience of Castor 440/84 Casks in Dukovany NPP” by Stanislav Kuba, 14th International Symposium on the Packaging and Paper # 022 Transportation of Radioactive Materials (PATRAM 2004), Berlin, Germany, September 20-24, 2004. http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/37/088/37088667.pdf

https://sanonofresafety.org

COMMERCIAL NUCLEAR WASTE STORAGE AND TRANSPORT PROBLEMS AND SOLUTIONS“: https://sanonofresafety.files.wordpress.com/2011/11/drystoragerecommendationsdg2017-08-24fivepage.pdf

Is this why we are stuck with the crappy Holtec spent fuel system? Bribery or related tactics? And Areva? https://miningawareness.wordpress.com/2015/02/05/why-was-holtec-debarred-as-tva-contractor/

One example of the dangerous way spent nuclear fuel is being handled: https://miningawareness.wordpress.com/2016/11/11/on-monday-holtec-usnrc-to-discuss-peening-of-spent-nuclear-fuel-canister-welds-apparently-before-flipping-areva-nuhoms-canisters-from-sideways-to-upright-to-move-to-holtec-interim-storage/

This is the Sierra Club’s letter to the US NRC, with emphasis added:






See original without emphasis here: https://sanonofresafety.files.wordpress.com/2011/11/sierraclubnrc-decomcomments2016-03-18.pdf