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3.5.8 Other sampling/measurement locations

In addition to land surface areas surveys and structure surveys, there are numerous other locations where measurements and/or sampling may be necessary during remedial actions. Examples include items of drains, ducts, piping, equipment and furnishings, and building fixtures.Many of these items or locations have both internal and external surfaces with potential residual radioactivity. Subsurface measurements and/or sampling may also be necessary.

Special situations may be evaluated by judgment sampling and measurements. Data from such surveys should be compared directly with DCGLs developed for the specific situation. Areas of elevated direct radiation identified by surface scans are typically followed by direct measurements or samples. These direct measurements and samples are not included in the non-parametric tests described in this manual, but rather, should be compared directly with DCGLs developed for the specific situation.
Quality control measurements are recommended for all surveys, as described in Section 3.3.9. These additional measurements should be considered during survey planning.