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MARSSIM Technical
Issues
Under development--Plan
to discuss issues related to survey unit sizes, use of Sign test for
surface activity measurements, scan MDCs and detection sensitivity, etc.
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Double Sampling.
Draft NRC NUREG-1757, vol. 2, Appendix C addresses the provision of
collecting additional samples if the initial FSS sample size fails to
demonstrate compliance with the release criterion. Page C-6 states
“…double sampling should not be used as a substitute for adequate
planning. If it is to be allowed, this should be agreed upon with NRC
staff as part of the DQO process.” Please refer to the
NUREG for more details. Additionally, Dr. Carl Gogolak has
prepared a paper titled "Use
of Two-Stage or Double Sampling in Final Status Decommissioning
Surveys" that provides further detail on this topic.
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Presentation made
to MARSSIM WG Committee (April 15, 1999) concerning use
of Sign test for surface activity measurements.
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