If GPS data is used in a survey, how must it be handled according to the DAO?

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Multiple Choice

If GPS data is used in a survey, how must it be handled according to the DAO?

Explanation:
GPS can speed up surveying by providing accurate positions, but in boundary work the results must be checked against traditional measurements and existing monuments. Using GPS data as a guide or supplementary information is appropriate, as long as you verify and reconcile those coordinates with conventional field measurements—tied to the established boundary markers and the descriptive statements in the record. This ensures the plan remains legally defensible and consistent with the actual monuments on the ground. This approach prevents relying solely on GPS, which can be affected by errors such as multipath, datum mismatches, or unstable control points. It also preserves the legal anchors of the boundary—the physical markers and the described boundaries in the deeds and plans—by confirming that GPS-derived positions align with them. The other options are not correct because GPS data should not be ignored, it does not go directly through the DENR as a processing authority for the survey, and GPS data should not replace boundary marker descriptions.

GPS can speed up surveying by providing accurate positions, but in boundary work the results must be checked against traditional measurements and existing monuments. Using GPS data as a guide or supplementary information is appropriate, as long as you verify and reconcile those coordinates with conventional field measurements—tied to the established boundary markers and the descriptive statements in the record. This ensures the plan remains legally defensible and consistent with the actual monuments on the ground.

This approach prevents relying solely on GPS, which can be affected by errors such as multipath, datum mismatches, or unstable control points. It also preserves the legal anchors of the boundary—the physical markers and the described boundaries in the deeds and plans—by confirming that GPS-derived positions align with them. The other options are not correct because GPS data should not be ignored, it does not go directly through the DENR as a processing authority for the survey, and GPS data should not replace boundary marker descriptions.

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