Field walkthrough — Professional field procedures & note keeping
The hook
The field book — paper or digital — is the permanent legal record of what was measured, when, by whom, and under what conditions. A survey can be defended in court only by the documentation behind it. Sloppy documentation = unprovable work = lawsuit risk.
Memorize these
Concepts that show up on the exam
Field book
The chronological record of observations. Paper books are still used; most modern firms use digital data collectors that produce equivalent records.
Sketch
A hand drawing showing the geometry of the setup, monuments, adjoiner relationships. Critical for reconstructing the work later.
Witness
A nearby permanent feature (tree, fence post, building corner) with a measured tie to a survey monument. Lets a future surveyor relocate the monument if it's lost.
Calibration record
Documentation of when and how the instrument was last calibrated. Defensible work requires a current calibration certificate.
Chain of custody (data)
Tracking how survey data moves from field instrument → office computer → final deliverable. Critical for ALTA and other high-stakes work.
Don't fall for these
What trips people up
Erasing or "cleaning up" field notes
The field book is an evidentiary record. Mistakes are crossed out with a single line and corrected, not erased. Digital equivalents must preserve original observations alongside edits.
Skipping the sketch
A sketch — even rough — captures the spatial context that pure tabular data loses. Five minutes in the field saves hours in the office and lawsuits years later.
Generic "rebar" with no further description
"Rebar" tells you nothing. "5/8" rebar with red plastic cap stamped LS 12345, undisturbed, in concrete monument" tells you everything.
Test yourself
How well did it stick?
A quick 5-question check on Field Records and Documentation. See where you stand and what to review.