ML20148P118
| ML20148P118 | |
| Person / Time | |
|---|---|
| Site: | 05000142 |
| Issue date: | 11/24/1980 |
| From: | Bradford P NRC COMMISSION (OCM) |
| To: | Dircks W NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO) |
| Shared Package | |
| ML20148P114 | List: |
| References | |
| NUDOCS 8101120135 | |
| Download: ML20148P118 (1) | |
Text
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'o UNITED STATES l'
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NUCLEAR REGULATORY COMMISSION j
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W ASHIN GTON. D.C. 20555 l
O D....+ /, E uf24/80 OFFICE OF THE COMMISSION EP MEMORANDUM FOR:
Wilham J. Dircks Executive D ctor for. Operations
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FROM:
Peter A.
radford
SUBJECT:
UCLA RESEARCH REACTOR The January 3,1980 response from UCLA to the 2.206 petition of the
" Committee to Bridge the Gap," indicatos that the concentrations of Argori-41 in the unrestricteo areas immediately adjacent to the ventilation stack will exceed MPC whenever the reactor is operating.
In light of the fact that the reactor actually operates only a small fraction of the year,. please analyze the reasonableness of allowing the licensee to average Argon concentrations in unrestricted areas over a 12-month period for the purposes of 20.106.
A response-is requested by December 10.
cc: Chairman Ahe6rne Cor missioner Gilinsky Commissioner Hendrie
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L. Bickwit, 0GC E. Hanrahan, OPE S. Chilk, SEC't 1I' i
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OTTICE OT EN\\*LMONMENTAL REALTH AND 1ATETT THE CES"7I.R FOR THI REALTH SCIENCES
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f LOS ANCELES, CALITOR.NLA 90024 January 3, 1980 l
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Mr. John F.
Ahearne, Chairman i
U.S.
Nu cle a r. Re g ul a to ry. Commi s s i o n l
Washington, D.C.
20555
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Dear. Mr. Ahearne:
j The enclosed document is UCLA'S officia1 response to the chatges concerning the safety of the UCLA Nuclear Reactor that have been made by the " Committee to Bridge the Gap".
This l
document ha s been prepared - by the operatiansi staff of the reactor a'nd myself.
(I am a Certified Health Physicist with more than 20 l
/ ears-experience in the field of Radiation Safety, including 3 years experience working with a one raegawatt research reactor at i
- he University of Michigan).-
l We believe that the enclosed document adequately demonstrates l
l e,g a l lici..; and does not represent a hazard to anyone, under any realizable conditions.
Further, our calculations show that the 1
argon 41 holdup system that we plan to install concurrent with an j
increase in reactor operating hours will reduce the argon emission
- c less than the present levels.
This result is dirEctly compatible with the spirit of the ALARA concept for operation of a nuclear facility.
Another purpose of my writing this transmittal letter is to request that you change your records to indicate that all future correspondence relating te the UCLA reactor (Facility License R-71) be directed to me:
Welter F.
Wegst, PhD Director, Research & Occupational Safety Department of Community Safety University of California 405 Hilga rd Avenue Los Angeles, Ca.
9002'.
.f jeu have any fur:her questiens relative to argon-41 emission,
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,e kr.ow.
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Very truly yours, y. C -./..- 4 :
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Walte r F.
W e g s t,' P r. D Direc:cr, Res ea rc, & Occupational Safety buPE~ 7 13~
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bY 7400 Boelter Eall ScNool or ENCINEE.R.LNC AND APPL.lED $C1ENCE Los ANCELIS, CA.L.IToR.NLA 90024 j
20 December 1979 Mr. John 7. Ahearne, Chair =an i
U. S. Nuclear Regulatory Com:nission i
l Washington, D.C.
20555 RE: Docket 50-142 License No. R-71
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De.ar Mr. Ahearne:
, The enclosures constitute our response to charges cade in regard to the safety of the research reactor on the campus of the University of California, l
Los Angeles.
The charges, contained within a report titled "The UCLA Reactor -
f Is It Safe?" vare forwarded to Joseph M. Bendrie by a group called the "Corittee to 3 ridge the Cap" with a transmittal letter dated October 3, 1979.
The response herewith has been reviewed and approved by our Radiation Use Corc.ittee as shown on the attached review page.
Sincerely, f
i
- e. Y R. R. O'Neill, Dean j
School of Engineering and Applied Science
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RRO/NCO/jb Review by I.nvironmental Health & Safety, UCLA l $ $~ k A d.y<,
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- '. Wegst, Director
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a Environ = ental Health & Saf ery J
i Azeroved by Responsible Officei i i
\\ w-C J.W Eobson, Vice Chance 11er DISTRI3UTION:
Dr. Harold R. Denton Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Co==1ssion Washi..gton, D.C.
20555 v.r.
Robert W.
Reid Operating Reactors 3 ranch #4/NRR (2 copies)
U. S. Nuclear Regula tery Co==is sion Washingten D.C.
20555
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AC11C=CL Ol' CFC;NE*.n!NC AND APPL!:D SCIENCT LCS ANCELI.5. CALifonNI A 90024 l
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Mr. Yarl R. Goller Assistant Director of Operating, Reactors i
Directorate of Licensing U.S. Nuc1 car Regulatory Com;nission liarhington, D.C.
90545 Docket No. 50-142 i
l
Dear Mr. Goller:
l i
inis is in response to questions rais :d by Mr. David hffee and Mr.
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Block of the Nuclear Regulatory Coraission during a telephene cenversation with Messers C. Ashbaugh and J. Hornor of the UCLA Nuc1 car Energy Laborntory.
We understa.nd that this conversation of SepteFiber 22, 1973, inv01Ved tho
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followin; four requests and/or questiens:
1 1.
That UCLA r.nd the Nuclear Ener;;y Laborator;. be cc aitted to a two year envircnmental ther:cluminescent desinetry (TLD) program, ebserving a r.dnir.u:' of 6 cc,r. pass points samf.ed in various doim t
wind directions from the stack.
i 2.
Describe venti;.aticn and air conditiening intnes in relation to stack releases, and describe pessible ar;cn-41 concen:rctiens in these intake sys:cas, j
i 3.
1-lith respect to Iten 2 of our Au;t.:.t 26, 19 5 respense:
hha t are the radiation exposures :o perscnnel within the metcerologicci laboratory?
Do not ignore ira.::sion.
4 Discuss the ALAP ue: tion,10 CFR 20.106(b) and (c), in tcras c:
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- essible reduction methods.
l ne z : ached respc.sc ad,rcsres :.nese :our eas.
c; case acvise us
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o pr:r;; ty if ycur c,uestions have been altered i the p.::cAs of ccrcu.icaticn.
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Sincerely, jf,
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