ML19262C512
| ML19262C512 | |
| Person / Time | |
|---|---|
| Issue date: | 11/08/1979 |
| From: | Schreurs S NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Knapp M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML19262C506 | List: |
| References | |
| REF-WM-12 NUDOCS 8002140138 | |
| Download: ML19262C512 (2) | |
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!d a Martin Luhite SSchreurs & r/f PEMDFJJIDUM FOR: Malccle R. Knapp High-Level Wasta Technical Develegaent Branch Division of Waste Manage ent ROM:
Stephen F. Schreurs liigh-Level Waste Technical Develoc: ent Branen Division of Wasta 'fanagerent svi]ECT:
INPUT TO THE KEYSTONE TF.I? PI? ORT The fnllwing Is a listing of important points brought up at the Keystone Ocnfe ence. This list is my inout to La,rence dhite for the Keystene trip.
1.
With the exception cf DCE, the participants,<ere in favcr of the ?F.C a; r:ach.
2.
The MRC should not abanden the systecs approach while in:Or: crating the T.ultibarrier ap?rcach. Synergistic effects on the barricrs rust be carefully CheCNed.
3.
The participants were c:ncerned that the NRC was being arbitrary and capricicus when proposing numbers in the ragulation.
4 In general, the participants indicated thct the codeling stcta-cf-the-art is ahead of data ;uality and physical understanding.
5.
A conclusion was that using odels of proper :ophistication for cisarly statsd objectfves must be achieved (i.e. do not go overbcard with detailed cdeling). The participants did rec:gni:e the need fer a rar.;c of sophisti-cation in nodels.
5.
The need for a clear set of definiticas of terms fer waste manage: cat was emphasi:cd.
7.
The relationship of modeling and experieents was discussed at length.
.[
90 consensus of opinica was reached. The :ain points of discussion were:
Mcdels biasing the results of expericents (i.e. tuning experinental a.
rssu'.ts to todels).
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Develcpment of experiments to further the site characterization of sites.
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" sed of in-situ experinents v.s. lab experiments.
5.
Validation of models was discussed but no clear conclusions were reached except that models should be validated as mur.h as cessible.
2.
The participants cencluded that dealing with recositories in the abstract s5culd be avoided. Hycothetical or real sites should be used for analyzing geolcgic waste dispcsai.
10.
A c;nclusien was that tScre should be rcre interaction between the modelers and the geologists.
- 11. The probicm of long time spans was discussed. Two post cicsure tine spans wa e identified:
a.
The ther~al puls time period; and b.
The ti: c period follcuing the themal ;uls.
g The participants cencluded that only cedels could effcetively deal with the long tire spans.
12.
The narticiocnts stressed that there shculd be a traceabic analysis linked to sa'ety for develepr.ent of critaria.
- 13. Although a unaniscus opinion was not reached, the grcup recc= ended that waste canagement should go through a testing phase prior to full scale co+ ration.
Stephen F. Schreurs High-level Waste Technical Develop cat Branch Division of k'aste l'.anageent Df&"
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