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Groundwater Contamination (1984) / Chapter Skim
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11. Assessment of the Potential for Radionuclide Migration from a Nuclear Explosion Cavity
Pages 139-146

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From page 139...
... This ongoing project is sponsored by the Nevada Operations Office of the Department of Energy with the participation of the Los Alamos National Laboratory, the Lawrence Livermore National Laboratory, the U.S. Geological Survey, the Desert Research Institute, and appropriate support organizations.
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From page 140...
... Solid samples and water removed from the sidewall cores from the lower cavity region were analyzed radiochemically for 90Sr, i37Cs, and 239Pu, and effective distribution coefficients (ratio of the concentration in or on the solid to the concentration in the aqueous S ~ RNM- 2S ~~ /~ ~RNM-i N PUMP 316 m 340 m _~221 m GRAVEL PACK / WATER LEVEL BELOW 210 m / 91m i294mWP / CAVITY ( RADIUS 10.9 m)
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From page 141...
... Although some 85Kr and tritium were found in the collapsed zone above r 200 220 _ 240 260 _ cx: At 280 320 340 380 ~ U-5\ l Covi ty Cemented annulus 1 ~ /:RNM-1 Al; r Center I i ne 2.4-crT Casi rig Rewater tab ~ e at 221.0 Casing and hol e diameter drawn using expanded scaleofl ;nch=50cm ,, Lynes dr; I labl e packer Lynes external casing packer In open hole 12 1~7/ /~ Total Depth l 160 140 120 100 80 60 40 HORIZONTAL DISTANCE SOUTH OF SURFACE SITE OF RNM-1 (m) 141 the explosion region, they were concentrated in the cavity region.
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From page 142...
... HOFFMAN and WILLIAM R DANIELS TABLE 11.3 Representative Activity Levels in Cambric Water Samples 10 Yr after Detonation Zone Below cavity Lower cavity Upper cavity Chimney Adjacent to chimney CGc Tritium Activity Level (~Ci/mL)
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From page 143...
... _ 2.5- x 2.0 ° 1.5~_ ._ A 0.51.0 x x x x x xx ^ ~ xx x x >( 0.0- 1 1 1 1 1 1 1.5 2 2.5 3 3.5 4 4.5 5 Vo I ume Pumped ( 106 m3) FIGURE 11.6 85Kr/T atom ratios for water from RNM-2S.
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From page 144...
... S Rundberg, Los Alamos National Laboratory, personal communication, 1981)
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From page 145...
... . bTrace water produced by leaching test debris.
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From page 146...
... III. A Continuation of Studies with Samples from Jackass Flats and Yucca Mountain, Nevada, Los Alamos National Laboratory Report LA8747-MS.
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Key Terms

  • radionuclide migration
  • water samples
  • cavity region
  • nuclear explosion
  • laboratory report

  • test site
  • nevada test
  • drinking water
  • cambric cavity
  • nuclear test

  • retention factors
  • national interim
  • lower cavity
  • water regulations
  • scientific laboratory

  • alamos scientific
  • jackass flats
  • various radionuclides
  • cambric water
  • test debris

  • laboratory experiments
  • distribution coefficients
  • source term
  • initial studies
  • core samples

  • effective distribution
  • geologic media
  • underground nuclear
  • cambric source
  • solid material


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