Before initiating field sampling, you should first examine existing site survey information.

• A. Review site survey information
• B. Conduct chemical analysis
• C. Pack PPE
• D. Notify authorities

Answer: (A)

Before entering the field, you need to understand what is already known about the site. Reviewing existing site survey information sets the plan by revealing hazards, conditions, and controls that shape every safe sampling decision. It tells you where it’s potentially dangerous (unstable ground, toxic vapors, nearby sensitive receptors), which parts of the site are accessible or off-limits, what previous measurements or incidents exist, and what sampling approaches have been used or recommended in the past. With that context, you can choose appropriate sampling locations, determine the level of protection required, and select suitable equipment and procedures. It also helps you anticipate emergency procedures and regulatory or coordination steps, such as whether authorities need to be notified, and ensures your PPE and methods are tailored to the actual risks rather than guessed. Skipping this step leaves you flying blind and increases risk to personnel and data quality. Once the site survey information is reviewed, you can decide on the exact PPE, sampling methods, and any necessary notifications with confidence.