Where should site assessors record their observations?

Recording observations in a field notebook is essential for site assessors conducting assessments of underground storage tanks (USTs). A field notebook provides a dedicated space for site assessors to document their findings in real time, capturing detailed notes about the site's conditions, any issues observed, and specific measurements taken during the assessment. This method ensures that information is collected in an organized manner, facilitating better data review and analysis later on.

A field notebook is particularly advantageous because it can be used in a variety of conditions, including locations with limited access to electronic devices or areas where battery life is a concern. Furthermore, it allows assessors to sketch diagrams or make annotated drawings that can complement their written observations, adding context that electronic records may sometimes lack.

While other options such as computer spreadsheets and mobile devices may seem efficient for recording data, they can be less practical in the field due to the need for a stable power source, visibility issues under direct sunlight, or potential risks of damage from environmental conditions. A laboratory log, on the other hand, is typically used for recording laboratory analysis results, not for on-site observations, which makes it less relevant in this context.