What must the Site Senior Executive ensure regarding the Geocentric Datum of Australia (GDA)?

The correct action for the Site Senior Executive in terms of the Geocentric Datum of Australia (GDA) involves referencing local grid systems to the GDA and Australian Height Datum (AHD) on plans. This requirement ensures that all spatial data, including geological and topographical maps, are consistently aligned with a recognized and accurate national coordinate system. This alignment is crucial for safety, regulatory compliance, and operational efficiency.

Using a standardized reference like the GDA allows for effective communication and integration of data across various aspects of mining operations, from planning to environmental assessments. Accurate positioning and mapping are necessary to avoid conflicts with land usage and to comply with both local and national regulations.

While establishing a datum station, calibrating GPS devices, and documenting geological surveys all play important roles in mining operations, they do not specifically address the imperative of ensuring alignment with the GDA and AHD on operational plans. These activities can enhance data accuracy and project management, but they are secondary to the fundamental responsibility of integrating with the established geodetic framework.