ML19332E439
| ML19332E439 | |
| Person / Time | |
|---|---|
| Issue date: | 12/04/1989 |
| From: | Surmeier J NRC |
| To: | NRC |
| References | |
| REF-WM-3 NUDOCS 8912070226 | |
| Download: ML19332E439 (25) | |
Text
{{#Wiki_filter:.. DEC 4 1999 MEMORANDUM FOR: Record FRON: John J. Surmeier
SUBJECT:
SUMMARY
OF MEETING BETWEEN LLWM AND EPRI, NUMARK AND DUKE POWER 4 On November 28, 1989 management and staff from the Division of Low-Level Waste Management and Decommissioning (LLWM) with EPRI, NUMARC and Duke Powcr representatives to discuss source term scaling issues relating to low-level ) 4 waste disposal and EPRI-sponsored research in this area. EPRI has developed a methodology to estimate the amount of I-129 generated by reactors that indicates that the reported activity of I-129 on waste disposal manifest records may be at least two orders of magnitude higher than is actually 9enerated and disposed of as low-level radioactive waste. EPRI is in the process of validating this methodology. /4 list of the attendees at the meeting are presented below. A copy of the vugraphs used by EPRI are attached. NRC EPRI NtNRAC j Richard Bangart Patricia Robinson Lynne Fairobent Michael Bell Jene Vance Paul Lohaus John Surmeier DUKE POWER Garry Roles Robert Fonner Mary Birch Michael Weber 7; OJ N i John J. Surmeier
Attachment:
Copy of vugraphs cc: NRC PDR
- Centeelfiles SECY J. Taylor H.-Thompson R. Bernero T. Murley R. Bangart M. Bell P. Lohaus R. Fonner L. Fairobent, NUMARC P. Robinson, EPRI M. Birch, Duke Power I /
)\\ l'b !A 8912070226 891204 ~$3 PDC 1v l h !h ?
LLW issues / -l i^ L SOURCE TERM & PERFORMANCE ASSESSMENT FOR DISPOSAL SITES 1 i l l CLEAN WASTE VERIFICATION ( FREE RELEASE) l i WASTE CLASSIFICATION -Scaling Factor Predictor Code, RADSOURCE -Generic Scaling Factors for DAW l WASTE VOLUME -Compact Sites -Storage On-Site i "0" Solid LLW ALWR i i i i i t l-i. J
h: r 10CFR61 h EPRI Research Work l.
- 1 Waste Classification / Scaling Factors 4
l Industry Wide Database 1985-Present i Waste Characterization-Chemistry / Radiochemistry -Low Activity Waste Streams (DAW, Soil, Oil) -RCS Column Testing l Development & Validation of Scaling Factor-Predictor Code RADSOURCE l l i l
- 2 Waste Disposal Source Term Data that Demonstrates Analytical & Sampling l
Conservatism in Scaling Factor Methodology l Data to Validate I-129/Tc-99 Disposal Site Source Term From Fuel Release Mechamsms Developed by J. Vance j i i l l ~ ~
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g t l l Problem h i l l I t l Tc-99 & I-129 are mobile isotopes in the i environment 1 i .t j Recall from 10CFR61, doses are inventory controlled not concentration controlled' f l - - Inventories of Tc-99 & I-129. are potentially limiting j L the siting of new compact LLW facilities r = i f Source terms'derised from 10CFR61 samplingi programs & shipping records over predicts thel i .mventory by.a sigmficant margin ' A. .,-p ,,,,+n~ ,; g ju J-a ' '^ a n,;,,,-,,, n n n, ,wn n +,,.w% % ?.gw' L l ?:-: '- W^
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s I i-i Need l i l Development ofI-129 & Tc-99 Source. Term . 4 Correct l 4 Credible i 5 V Defensible-l 1 and . E i -. A4,C. an.Be. Developed Cost-Effective.ly,',m,,. m-e i ~,,: P + :rv..
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-n 2 4 1 i ,i e i 4 1 Solution 4 1, I 4 I i .i i l l Development of a Predictive I-129 & Tc-99 i l Source Term Model Based On: R I t I i i i i l ri + l - - Utilization of Fundamental Fuel Release Mechanisms. ~ i -- ' Derivation of Fuel Release. Rates. Y N'" -W#' [, *1 N M[ ',M (.r '"mY, ") /Y'r # WE - '.'N-' 8,
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1 i l Reactor Fuel is Ultimate Source ofI-129 - i t L i Reactor Fuel May Be Exposed or In Fuel Pins - l i Fuel Contained in Fuel Pins Will Release Fission i Products from Defect in Cladding l i .) l ' L I-129 is; Released from' Fuel by 3 Fundamental (Mechanisms: 4 Recod, - ~
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