First, we conduct a historical site assessment (HSA) to identify potential radiological contaminants.

Then, we develop a survey plan that describes the scanning, sampling, and analytical approach of the survey; creates data quality objectives; sets derived concentration guideline levels (DCGLs); identifies survey units and classifications for impacted areas; and determines the number of sample and/or measurement locations required in each survey unit.

Finally, we conduct the final site survey and analyze the results following the survey plan. If necessary, we also decontaminate the buildings and equipment.