What should a surveyor include when any coordinates are shown on the drawing?

Including the data on which the coordinates are based is essential because it provides clarity and context for the coordinates presented in the drawing. This helps ensure that anyone interpreting the survey can understand the basis of the measurements, which could include information about the survey control network, the datum used (such as NAD83 or NAVD88), and the method of measurement. Providing this data allows for verification and reproducibility of the survey, which is fundamental in the land surveying profession. By including this information, surveyors uphold professional standards and facilitate accurate application of the survey results. Without this vital context, the coordinates may be misinterpreted or misused, leading to potential errors in land use, property boundaries, or planning.