ML20196A045
| ML20196A045 | |
| Person / Time | |
|---|---|
| Issue date: | 11/20/1998 |
| From: | NRC OFFICE OF THE SECRETARY (SECY) |
| To: | |
| References | |
| SECY-98-242, SECY-98-242-ERR, SECY-98-242-R, NUDOCS 9811270033 | |
| Download: ML20196A045 (2) | |
Text
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November 20,1998 CORRECTlON NQTICE
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i TO ALL HOLDERS OF 5
SECY-98-242 SCREENING TABLE FOR BUILDING-SURFACE CONTAMINATION. AS GUIDANCE IN SUPPORT OF THE FINAL RULE ON RADIOLOGICAL CRITERIA FOR LICENSE TERMINATION l
PLEASE REPLACE ATTACHMENT 2 OF SECY-98-242 WITH THE ATTACHED REPLACEMENT PAGE. THIS CORRECT ERRORS SOME ERRORS IN THE TABLE.
l ATTACHMENT:
AS STATED 6-~
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THE SECRETARIAT l
9811270033 981120 PDR SECY 98-242 R PDR g
p 3.-3
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REVISED SCREENING VALUES OF COMMON RADIONUCLIDES FOR -
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BUILDING-SURFACE CONTAMINATION LEVELS R3 vised 11/12/98 Radionuclida'.
Emission D&D Scrosning Valuss' Action Common
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o= Alpha Plan Use*
p= Beta som Percentile Mean Values:
Y= Gamma of the output dose of the output dose distribution -
distribution H-3 p
1.2E+08 1.9E+08 SE+03 R, B C-14 S
3.7E+06 5.6E+06 SE+03 B
Na-22 S
9.5E+03 0.6E+03 SE+03 B
S-35 p
1.3E+07 2.4E+07 5E+03 B
Cl-36 5
5.0E+05 9.8E+05 SE+03 B
Mn-54 E
3.2E+04 3.2E+04 SE+03 R
i Fe p 4.5E+06 8.7E+06 SE+03 R
Co-60 py 71E+03 7.5E+03 SE+03 R, B j
Ni-63 p
1.8E+06 3.8E+06 SE+03 R, B j
Sr-90 8.7E+03 1.7E+04 1E+03 R, B j
Tc-99 p
1.3E+06 2.6E+06 SE+03 B,FC l-129 py 3.5E+04 4.8E+04 1E+02 B
Cs-137 py 2.8E+04 2.9E+04 5E+03 R
L Ir-192 ~
py 7.4E+04 7.6E+04 SE+03 B
l Ac-227 apy 1.8E+00 4.0E+00 1E+02 FC l
Th-228 ay 4.1E+01 9.0E+01 1E+02 FC Th-232 ay 7.3E+00 1.6E+01 1E+03 FC l
Pa-231 ay 8.6E+00 1.9E+01 1E+02 FC U-235 ay -
9.7E+01 2.1 E+02 SE+03 FC U-238 ay 1.0E+02 2.2E+02 5E+03 FC Pu-239 ay 2.8E+01 6.0E+01 na.
FC, DOE' l
Am-241 cy 5.8E+01 2.7E+01 na B
l ATTACHMENT l
' Screening values (dpm/100 cm ) equivalent to 25 mrem /y. Behaviorst parameters are set at the mean of 2
the distribution of the assumed critical group.. The Metabolic parameters are set at Standard Man or at the mean of the distribution for an average man. The physical parameters were derived as a set to result in a point dose estimate that would be at the percentile indicated of the output dose distribution, and would not exceed 100 mrem at 95% confidence.
2 2
Reg. Guide 1.86 limits (dpm/100 cm ); these limits are not explicitly dose-based.
- R: Reactor: B: Broad-Scope; FC: Fuel Cycle
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