ML20127M770
| ML20127M770 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 06/17/1974 |
| From: | Goller K US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Mayer L NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20127M774 | List: |
| References | |
| NUDOCS 9211300466 | |
| Download: ML20127M770 (4) | |
Text
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DISTRIBUTTON:
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Local PDR RMDiggs ORB-2 Reading HJMcAlduif, OR0 JUN 171974 JRBuchanan, ORNL TBAbnerathy, DTIE Docket No.,50-263 T
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Northern States Power Company OGC ATTN: Mr. L. O. Mayer JSaltzman, 0AI Director of Nuclear FLIngram Support Services WOM111er 414 Nicollet Mall DLZiemann Minneapolis, Minnesota 55401 SVarga Slewis, 0GC Gentlemen:
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SKari We have completed our review of your aoplication dated August 31, 1973, as pmviously filed on December 21, 1972, for amendment to the byproduct materials authorized under Provisional Operating License No. DPR-22.
Your application of August 31 requested:
(1) an increase in the type and strength of the sealed antimony sources--specifically, an increase from 1250 curies to 5350 curies to account for the licensing of the parasite 122 along with the antimony 124 (2) an increase (from 27 microcuries to 5.5 millicuries) in the unrestricted form of cobalt 60 and the consolidation of the 0.5405 millicurie of cobalt 60 that was previously licensed in solution form, (3) a consolidation of the 2.702 mil 11 curies of cesium 137 in solution fom and the 1 millicurie of cesium that has no restriction as to form as 3 millicuries of cesium without form restriction, (4) the addition of 100 microcuries each of byproduct materials with atomic numbers 3 through 83, and (5) the deletion from licensing mquirements of the sealed sources of cesium 137 and strontium 90 because you consider them to be within the exempt quantity limits of Section 30.18 of 10 CFR Part 30.
I In connection with item 1 above, the license previously authorized possession of 10 sealed antimony 124 sources up to 1250 curies each.
However, antimony 121 is present to the extent of 57% in natural antimony and the remainder is antimony 123. Activation of natural antimony therefore results ii, the formation of radioactive antimony 122 and 124.
l Revised calculational methods using mom recent cross section data and Monticello neutron flux values have resulted in a slight increase of the curie content for the antimony 124 source which when combined with the parasitic antimony 122 results in a conservatively calculatud limit of 5350 curies per source. The amendment merely makes this fact explicitly covered by the license provisions, and does not in any way affect safety considerations in connection with use or handling of these sources.
.*wei 9211300466 740617 PDR ADOCK 05000263 P
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Northern States Power Company 7 393 1
-i For i 2 above, the license previously authorized 27 microcuries of j
j cobal n the unrestricted fem and 0.5405 m1111 curie of radioactive cobalt in solution fom. A larger inventory is desirable than previously allowed, 5.5 mil 11 curies, because over a five-year period the inventory is reduced by disposing of small quantities of the cobalt after-it has perfomed its function. The new limit represents the maximum amount that may be on hand, for example after receipt of a new shipment. (Th is no mquirement for, or benefit from, separately licensing 0.540F 1
I mil 11 curie in solution fom.1 Possession of the 5.5 m1111 curies of cobalt does not introduce n#t uses-or alter procedures-that have been pmviously followed and does not affect reactor operations hence there
'1 are no reactor safety considerations associated with the change.
s The action requested in item 3 above imposes no safety considerations that are different from those previously reviewed in that you were previously authorized for a total of 3.702 mi111 curies partly in soletion form and partly without mstriction as to chemical or physical form.
The receipt, possession and _use of 100 microcuries each of any one of the byproduct materials requested in item 4 above are within acceptable leveis-(assetforthinRegulatoryGuide1.10.3)and'do-notinvolve personnel safety considerations different' than those considered for the other materials previoosly reviewed and licensed for this facility.
Since previously reviewed and authorized operation of the reactor is not changed by the use of these byproduct materials in the manner proposed. we find that there are no new reactor safety considerations.
There is reasonable assura' ice that the health-and safety of-the public will not be endangered since the storage and use am consistent with, and within the scope of thas previously authorized by the-Regulatory--
staff ar# handling is by Porthern States personnel familiar with such; materials.
Since the sealed sources of cesium 137 and strontium 90 referenced in 9
item 5 above fall within the 100 microcuries 11mic of the materials requested in item 4-above -it is not necessary to provide for an exemption pursuant to Section 30.18.
Based on the above, we have concluded that ::he issuance of a license amendnent to authorize items 1 through 4 above will-.not be inimical to the common defense and security or to the health and safety of the public and that this action does not involve a significant hazards consideration.
Consequently. Amendeent No. 4_ to Provisional Operating License _ No.
DPR-22 ic enclosed authorizing.your August 31 request, with the -
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3-JUN t ? 1974 Northern States b er Company Further, it is currently yssible that if your application dated Septeraber 1,1972, for conversion of your provisional operating license (POL) to a full-term license (FTL) is updated to include the information set forth in the enclosed Regulatory Guide 1.70.3 entitled " Additional Information - Radioactive ".aterials Safety for fluclear Power Plants" dated February 1974, we will consider licensing the materials used in connection with operation of your Monticello plant in the manner set forth in this suide.
The information required by Guide 1.70.3 should be provided as soon as possible so that we can review it for inclusion 4 ' any supplemental Safety Evaluation that raight be issued in connectua x.th the license conversion. Aho, it is anticipated that a specificasion on source leakage tasting and surveillance, and a reporting requirement related thereto will be included in the Technical Specifications for the facility.
It is requested that all infonnation provided pursuant to the above guide be submitted as a supplement to your application for conversion of the POL to a FTL with three signed and notarized originals and thirty-seven additional copies.
As required by Section 2.106 of 10 CFR Part 2, the enclosed notice relating to the issuance of huancrent !!o. 4 to the license is being filed with the Office of the Federal Register for publication.
Sincerely, Originaj 3;g bl R. Golleg j-Karl R. 6c11er, Assistant Director for Opwating Reactors Directorate of Licersing
Enclosures:
1.
Amendment tio. 4 to License No. DPR-22 2.
Federal Register flotice cc w/encis:.
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':orthern States Pouer Company Euffalo,ilinnecota 55313 E14 Ilicollet P.all
.inneacolis, Pirnesota 55401 cc w/ enclosures and cy of MSP's Appls.12/21/72 & 8/31/73:
Gerald Charnoff Warren R. Lawson, M. D.
Sha.;, Pittman, Potts, Trowbridge Secretary & Executive Officer and Padden State Lbpartmnt of Health 910 - 17th Street, N. b.
(17 Delan1re Street, S. E.
Washington, D. C.
20006 Miraeapolis. rdraesota 55440 Howard J. Vogel, Esquire Mr. Gary WilliaTs inittle & Vo;;el Federal Activities Branen 1154 East Grain Exchan.:;e Euilding Environ.enta' Fratection A:;ency 41? South 4th Street 1 II. Uacl:er Drive, Room 322 i'.iraeacolis, Fdraesota 55415 Chicago, Illinois 60606 Steve Cadler, P. E.
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