ML20127A177
| ML20127A177 | |
| Person / Time | |
|---|---|
| Issue date: | 01/04/1993 |
| From: | Lohaus P NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Arnold S WESTINGHOUSE HANFORD CO. |
| References | |
| REF-WM-3 NUDOCS 9301110206 | |
| Download: ML20127A177 (4) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION o
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WASHING TON, D. C. 20$55
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m., a 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 inte.pretation of the regulatory requirements 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-clarification on whether radionuclides from both tables of 61.55 should be considered in a single sua:-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 classificatian 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 I 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 I for the Column 3 limits, the waste is Class C.
In both cases the sums-of-the-fractions are calculated separately for the TaY e 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 being developed to expand upon the guidance provided to generators of low-level waste.
This revision, on which comments were requested, was noticed in the Fe_deral Reaister on June 30, 1992. This is currently being revised in response to the comments received.
If you have any comments on this guidance please feel free to contact Mr. William Lahs at (301) 504-2569.
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Stuart Arnold I hope that this response addresses your concerns sufficiently.
If you hhve 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, (chsar4) t%UL,H,U}glfg Paul H. Lohaus, Chief Low-Level Waste Management Branch Division of Low-level Waste Management and Decommissioning Office of Nuclear Material Safety and Safeguards
Enclosures:
As stated DISTRIBUTION:
Central File NMSS r/f RBangart WBrach JAustin W/c E~ect, JSurmeier TCJohnson LLWB r/f Maik Small Boxes in Conburrence Block to. Define.DistributioniCopy Preference i
In sma! ? ' Bbx bn ~"0fC:" '1'itfe' place as " C = Co'ver E '= Cover' & Enclosure ~ ' N= No Copy
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- See Previous Concurrence LLy OFC :
LLWB*
C LLDR*
C LLWB*
C OGC*
C NAME:
RHogg Blahs JKennedy RFonner PLUh$us' l2 /3 f/92 DATE:
12/18/92 M
12/10/92 H
12/18/92 H
12/21/92 H
S:\\LLWMTYPE\\JOAN\\SARNOLD.RCH 0FFICIAL RECORD COPY in small Box on "DATE:" line place a: K = E-Mail Distribution Copy H = Hard Copy PDR :
YES l_
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 l
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Stuart Arnold Th\\srevision,onwhichcommentswererequested,wasnoticedinthe fr eyAl 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) $0,4-2569.
N 1 hope that this response addresses your concerns sufficiently.
If you have any additional questions please feel free to contact either myself, at (h01) 504-2553, or Mr. Robert C. Hogg of my staff, at (301) 504-2579(
\\
Sincerely,
'\\
's Sher Bahadur, Acting Chief
\\
Low-level Waste Management Branch
\\
Division of low-Level Waste Management
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and Decommissioning
\\0ffice of Nuclear Material Safety
\\ and Safeguards
Enclosures:
As stated N
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NMSSr/k RBangart WBrach JAustin DISTRIBUT10N1 Central File JSurmeier TCJohnsorts LLWB r/f
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' Mark Small Boxes :in Concurrence. Block to' Define Distribution Copy;Prefsrence C =' Cove'r'\\
in small Box on~"0FC:" line~ place ai E = Cover & Enciosure' N = No' Copy
- See Previous Concurrence n
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LLWB*
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RHogg Blahs J'Kehnedy
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S:\\LLWMTYPE\\JOAN\\SARNOLD.RCH OFFICIAL RECORD COPY \\
in small Box on "DATE:" line place a: K = E-Mail Distributi'oq Copy H = Hard Copy PDR :
YES X
NO Category:
Proprie tar)'s or Cf Only s
ACNW:
YES X
NO Delete file after distribution Yes X No IG:
YES NO X
\\
SUBJECT:
INTERPRETATION OF 61.55 s
I t
/
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 s
you havetany additional questions please feel free to contact either my s el f, a t, 301-504-2553, 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 Deconimissioning ffice of Nuclear Material Safety and Safeguards
Enclosures:
As stated OlS_TRULUTION:
Central File NMSS r/f Bangart WBrach JAustin JSurmeier TCJohnson c we rif Mark-Small Boxes in Concurrence Block t'o Define Dist ibution Copy Preference in small Box on "0FC:" line place'a: 'C = Co'ver E = Cove Enclosure N = No Copy
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OGC\\
0FC :
LLWB c,
LLDR C.
LLWB LLWB A
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JKennedy RFonner\\
NAME:
SBahadur DATE: tt/tt/92 M
/A/d /92 M
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/ /92 L
S:\\LLWMTYPE\\J0AN\\SARNOLD.RCH OFFICIAL RECORD COPY In small Box on "DATE:" line place a: M = E-Mail Distribution Copy
= Hard Copy PDR YES X
NO Category:
Proprietary or C Only ACNW:
YES 1 NO __
Delete file after distribution Yhs X,.
N o __
IG:
YES NO
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SUBJECT:
INTERPRETATION OF 61.55