Which CBRN report is associated with recon, monitoring, and survey results?

• A. Site Survey initial-assessment report
• B. CBRN 4 report
• C. CBRN 3 report
• D. CBRN 5 report

Answer: (B)

Recon, monitoring, and survey results are the real-time field data that define the current hazard picture. The CBRN 4 report is the document that brings all of that information together in one place—what was found during reconnaissance, the outcomes of ongoing monitoring, and the survey findings across affected areas. It usually details contaminant types detected, approximate concentrations or exposure levels, the extent and layout of contamination, and any hotspots or changes since the last report. This consolidated view is what guides protective actions, access control, decontamination priorities, and resource allocation because it turns on-the-ground observations into actionable risk assessments. Other reports cover different phases or perspectives, but the recon, monitoring, and survey data belong in the CBRN 4 report.