EIS-0113_Section_11 - Hanford Site

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COMMENTS ON APPENDIX
PRE LIMINARY ANALYSIS OF THE E PERFORMANCE OF THE
PROTECTIVE BARRIER AND MARKER SYSTEM
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no barrier fa ilure aceaerias ere not dhasuced In Any detail in Section M.O. The
of these scenarios re al their radiological effects ere not at... nod at all in
MN aPperldix
The fo ll Ow ing, numbmed eommenta, al ques ti on refer to Appendix M Of the Draft
Hanford Defense Waste. Eli:
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W 3.5 , 1 e 7
1. On page: M.e, a figuro is_n ended .. to show the cover to be constructed over Me
grouted trench.
2. m section M.2: and Ftgure M.O, whet K the tested li fe of ge.texSl., especlally It
uncovered and expand to s ucHght far long duradono of Man? How long after
3.5.1.27 deterloratlon of the geotex tile will fine-,mined cal ls pipe Into the filter And the
Titter pipe Into the riprap? A graded filter, the standard I. the contraction
Industry, would prevent such piping, but would severel y reduce the cap illary effect.
2. In Figure M.O, aide slopes Of l0 We loo aloop to avoid grIwItalto ul slumping end
erasion for 10,000 years, es pecia ll y If the c limate becomes significantly wetter.
4. On page M.10, whet happe ns to the "dry cobble" plant and animal barrier If the
"barrier fail ur e sceneries".era co nsidered ! A possible so lution Is the pyrite and
broken glass barrier described im.
and
Damao A Moore, 1000, Final report, research
development on M-situ encapsulation for low-lever
Transuranic buried waste at the Idaho National Engineering
Laboratories: Unpublished rapt. for EO#0 Idaho, Inc., Idaho
Falls, Idaho.
3.5.1.25
5. In Section M.5.1.2, ds chentgress all Net wi ll grow on the w as te co ver for 10,000
years? Whet about deep-rooted grid vegetation, li ke sagebrush, alfalfa, Russian
Wive, and others?
6. Tae models des cr ibed oa pages 51.21 and M.22 are . for one to 16 years. Whet
happen after 100, 500, or 1000 years?
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