ML20045B687
| ML20045B687 | |
| Person / Time | |
|---|---|
| Issue date: | 01/04/1993 |
| From: | Lohaus P NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Arnold S WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| Shared Package | |
| ML20045B686 | List: |
| References | |
| HPPOS-289, NUDOCS 9306180282 | |
| Download: ML20045B687 (4) | |
Text
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UNITED STATES
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Mr. Stuart Arnold Westinghouse Hanford Co.
2355 Stevens Drive Richland, WA 99352 M.S. N3-13
Dear Mr. Arnold:
This is in response to your request for an NRC interpretation of the regulatory requiremonts in 10 CFR Part 61 paragraph 61.55(a)(5) regarding the classification of wastes containing mixtures of long-and short-lived radionuclides.
Your question specifically requested l
clarification on whether radionuclides from both tables of 61.55 should be considered in a single sum-of-the-fractions calculation or whether the tables should be considered independently. Table 1 of 61.55 contains limits for long-lived radionuclides and Table 2 contains limits for short-lived radionuclides.
The staff position is that the waste generator should calculate the classification of the waste using the sum-of-the-fractions rule separately for the Table 1 isotopes and the Table 2 isotopes.
Following is an acceptable approach to classification of wastes containing both long and short lived radionuclides.
First, the sum-of-the-fractions for the Table 1 isotopes should be calculated.
Second, the sum of the fractions for the Table 2 isotopes should be calculated.
If the Table 1 sum does not exceed 0.1, the classification is determined by using Table 2 only.
If the Table 1 sum is between 0.1 and 1, and the Table 2 sum is less than 1 for the Column 3 limits, the waste is Class C.
In both cases the sums-of-the-fractions are calculated separately for the Table 1 isotopes and the Table 2 isotopes.
I have enclosed a copy of the 1983 Waste Classification Technical Position Paper.
I have also enclosed the latest version of a proposed revision to the technical position which is currently bein to expand upon the guidance provided to generators of low g developed level waste.
This revision, on which coments were requested, was noticed in the Federal Register on June 30, 1992.
This is currently being revised in
-I response to the comments received.
If you have any comments on this j
guidance please feel free to contact Mr. William Lahs at (301) 504-2569.
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Stuart Arnold Th\\srevision,onwhichcommentswererequested,wasnoticedinthe Fedkral Reaister on June 30, 1992. This is currently being revised in resp 6pse to the comments received.
If you have any comments on this guidance please feel free to contact Mr. William Lahs at (301) $Q4-2569.
I hope t this response addresses your concerns sufficiently.
If you have an additional questions please feel free to contact either myself, at (
- 1) 504-2553, or Mr. Robert C. Hogg of my staff, at (301) 504-2579 Sincerely, Sher Bahadur, Acting Chief Low-Level Waste Management Branch Division of Low-Level Waste Management and Decommissioning Office of Nuclear Material Safety and Safeguards
Enclosures:
As stated l
OISTRIBUTION:
Central File HMSS r/
RBangart WBrach JAustin JSurmeier TCJohnso LLWB r/f
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.H = Hard Copy PDR :
YES X
NO Category:
Proprietar or CF Only ACNW:
YES X
NO Delete file after distrD ution Yes-X
.No IG:
YES NO X
SUBJECT:
INTERPRETATION OF 61.55
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Stuart ' Arnold '
t I hope that this response addresses your concerns sufficiently.
If' you have any additional questions please feel free to contact either myself, at (301) 504-2553, or Mr. Robert C. Hogg of my staff, at (301) 504-2579.
Sincerely), PAUL,H M (cl*W Paul H. Lohaus, Chief Low-Level Waste Management Branch Division of Low-Level Waste Management and Decommissioning i
Office of Nuclear Material Safety and Safeguards
Enclosures:
As stated t
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DISTRIBUTION:
Central File NMSS r/f RBangart WBrach
-JAustin:
W/o Em JSurmeier TCJohnson LLWB r/f
- Mark s 5mai l : B6xesW ConcurrenceTBl ockit(Defid OthH bution3 Copy 3 Prsference in skall' Box"orj "0FCi" '1is' place ~aT 'C"= 'CoveF~ ETCover' V EnuY6sure~~ N = No Copy
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12/18/92 M
12/18/92 H
12/18/92 H
12/21/92 H
i S:\\LLWMTYPE\\JOAN\\SARNOLD.RCH OFFICIAL RECORD COPY In small Box on "DATE:" line place a: N = E-Na11 Distribution Copy N = Hard Copy PDR :
YES X
NO Category:
Proprietary or CF Only ACNW:
YES X
NO Delete file after distribution Yes X No IG:
YES NO X
SUBJECT:
INTERPRETATION OF 61.55
e o
Stuart Arnold,
(LLW).
This revision is currently provided as draft guidance for comment.
If you have any comments on this guidance please feel free to contact Mr. William Lahs at 301-504-2569.
I hope that this response addresses your concerns sufficiently.
If you havh any additional questions please feel free to contact either s
myself, aA301-504-2553, or Mr. Robert C. Hogg of my staff, at 301 504-2579 Sincerely, Sher Bahadur, Acting Chief Low-Level Waste Management Branch Division of Low-Level Waste Management and Decommissioning ffice of Nuclear Material Safety and Safeguards
Enclosures:
As stated DISTRIBUTION:
Central File HMSS r/f Bangart WBrach JAustin JSurmeier TCJohnson w
- rif
~ Mark Small:' Boxes ~1FConddrre6cs?B16sf t'6jDeflili! Dis 'IbdH5E?C#ylPNfsdnse In small Box 'on "0FCi"~ Tine }TEEE'~iT~C = Cbver'~ E = Cove ~YEnc16sure~'N'~ =' No' Copy
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LLWB LLWB R _ f\\
2 NAME:
Blahs JKennedy RFonner\\
SBahadur DATE: tt/nB/92 M
/A/#/92 ff
/ /92
/ /92 \\
/ /92 S:\\LLWMTYPE\\JOAN\\SARNOLD.RCH 0FFICIAL RECORD COPY In small Box on "DATE:" ifne place a: M = E-Mail Distribution Copy
= Hard Copy PDR :
YES X
NO Category: Proprietary or C Only ACNW:
YES _f.
NO Delete file after distribution Y X
No IG:
YES NO
SUBJECT:
INTERPRETATION OF 61.55