NUREG-1537, Part 2 - NRC

APPDMIX 17.1
removal, processing, and packaging of decommissioin'g wastes, which may
include eiquid radioactive waste, airborne radioactivity, and sold parts,
components, and other materials. Some examples of accidents are contaminated
chemical solvent spills and fires, iures of filters and vacuum filter bags' and
combustible radioactive material fires. The reviewer should judge the adequacy of
the accident analyses on the basis of experience with the dismantlement of similar
structures. The reviewer should assess potential radiation exposures using the
same techniques as those used for assessing releases during normal operation and
accident conditions in operating non-power reactors.
4 PROPOSED FINAL RADIATION SURVEY PLAN
After removing or reducing the reactor-related radioactivity, the licensee should
prepare a detailed set of measurements to verify that the residual radioactivity can
conform to the DP release criteria. The DP should include the proposed plan for
performing these measurements, ahalying the results, interpreting the results, and
relating those results to the release criteria for terminating the license. In the DP,
the licensee should commit to submit these results in a comprehensive report to
NRC when it requests the NRC inspection confirming that the criteria have been
met. The reviewer should confirm that the final survey plan addresses the
following:
* Summary of the location and types of all residual radioactivity.
* Scope of methods to measure and determine the relevant radiological
parameters, including background radiation.
* Discussion of methods, statistical or otherwise, to ensure that essentially all
residual sources of radiation are found and quantified.
* List of instruments and discussion of measurement techniques used.
* Procedures for calibrating instruments to ensure reliability and accuracy.
* Methods of documenting results that are available, retrievable, and
comprehensible.
* References to publications that address the quantitative measurement of
low exposure rates and low concentrations of radioactivity. (Note that
NUREGICR-2082 and its references are a reasonable starting point, but
more recent publications might be applicable.)
The reviewer should verify that the final survey plan demonstrates that the surveys
require techniques other than the usual ones used for personnel protection at the
NUREG 1537, PART 2 NUREG-1537, PRT 2 10
REv. 0.2/96
10 REV. O. 2/96