How should a field log capture the depth of the screen and the depth of the top of the sand pack?

How should a field log capture the depth of the screen and the depth of the top of the sand pack?

• A. By recording measured depths from a common reference (ground surface) for screen bottom, screen top, and sand pack depth.
• B. By estimating depths visually.
• C. By measuring only the total borehole depth.
• D. By referencing the water surface depth only.

Answer: (A)