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The WIPP Deep Nuclear Waste Facility, which is supposed to be for US Defense related plutonium and other transuranic waste, but is being co-opted for foreign plutonium dumping, has continued to have problems with its ventilation system. It is effectively a salt mine. The US government’s apparently blinkered Blue Ribbon commission still has salt domes and salt beds on its hit list of places to stuff nuclear waste using the excuse that it was recommended in the 1950s. The below study discusses yet another reason that this is dangerous, besides the obvious that salt speeds up corrosion, and the less obvious instability of plutonium. This problem of mine gas would seemingly be even greater in old coal mining districts, such as Cumbria, where a deep nuclear waste facility has been proposed. Notice the CO2 occurence in Polish salt mines. Even where these are deep, properly mined, facilities, rather than burial grounds of nuclear waste, they are backfilled and will be closed off at the end. Hence, it is the burial of waste.
INVESTIGATION OF METHANE OCCURRENCE AND OUTBURSTS IN THE COTE BLANCHE DOMAL SALT MINE, LOUISIANA, By Gregory Molinda Bureau of Mines Report of Investigations 1988 , Figure 7
INVESTIGATION OF METHANE OCCURRENCE AND OUTBURSTS IN THE COTE BLANCHE DOMAL SALT MINE, LOUISIANA, By Gregory Molinda Bureau of Mines Report of Investigations 1988 , Intro p. 2b
INVESTIGATION OF METHANE OCCURRENCE AND OUTBURSTS IN THE COTE BLANCHE DOMAL SALT MINE, LOUISIANA, By Gregory Molinda Bureau of Mines Report of Investigations 1988  Intro 2a
INVESTIGATION OF METHANE OCCURRENCE AND OUTBURSTS IN THE COTE BLANCHE DOMAL SALT MINE, LOUISIANA“, By Gregory Molinda Bureau of Mines Report of Investigations 1988, Read the entire document here: http://www.cdc.gov/niosh/mining/UserFiles/works/pdfs/ri9186.pdf

WIPP, which is supposed to be for US Defense related plutonium and other transuranic waste, but is being co-opted for foreign plutonium dumping, has continued to have problems with its ventilation system.
March 28, 2016 WIPP Ends Safety Pause
A safety pause, declared by Nuclear Waste Partnership in response to air quality issues in two remote areas of the WIPP underground, was ended and normal work in these areas has resumed. The pause began February 22 after workers detected elevated levels of carbon monoxide and volatile organic compounds (VOC) in two areas at extreme ends of the underground. The pause allowed time to thoroughly investigate each event while work in un-impacted portions of the WIPP underground continued.
http://www.wipp.energy.gov/wipprecovery/recovery.html

THE US GOVERNMENT WON’T LET FACTS GET IN THE WAY OF WHAT IT WANTS TO DO. THIS IS A LOUSY IDEA FOR US WASTE. WHY ARE THEY GOING TO ADD AROUND A TONNE OF FOREIGN NUCLEAR WASTE? The extra waste will be more than one tonne after dilution. Currently 5 tonnes is in there though it is unknown to us if this is diluted materials or plutonium, americium, etc. 6 tonnes is on its way, of which around 1 tonne is old foreign plutonium.
The WIPP radiological accident was over 2 years ago in 2014. They now hope to reopen it in Dec. 2016
WIPP 22 May 2014
WIPP salt bed http://www.wipp.energy.gov/wipprecovery/Images/Disposal-In-Salt.png
(The original says that salt beds are not placed in question. Hopefully this means that salt domes are. However, the blinkered Blue Ribbon commission had salt domes on their list.)
Ventilation system: http://www.wipp.energy.gov/Special/WIPP%20Update%203_3_16.pdf