Which piece of information is NOT required on a completed bag sample tag?

The information that is typically found on a completed bag sample tag is important for maintaining accurate records and ensuring the integrity of the sampling process. Options such as the name of the person taking the sample, the type of sample taken, and the date and time of the sample collection are fundamental components that help track the chain of custody and provide context for the analysis. These details contribute to the credibility and reliability of the sample results, as they allow for accountability and traceability.

In contrast, reporting weather conditions at the time of sampling, while it may be relevant in certain contexts, is generally not a standard requirement on a completed bag sample tag. This is because weather conditions do not directly affect the sample's validity in the same way that identifying personnel, sample type, and collection timestamps do. Therefore, this information is often considered supplementary rather than essential for the primary objectives of the sampling documentation. Thus, it is the correct response to identify as not required on a completed bag sample tag.