3. SCOPE OF WORK
3.1 Topographic survey
3.1.1 Control Point Survey
Control Point Survey will be carried out to establish datum points to be placed within the facility areas.
Control points shall be established with reference to the existing national datum coordinates, and located so that they will not be disturbed or destroyed by construction or maintenanceactivities in the proximity of the location.
Contractor shall consult the engineer for locations of control points prior to establishment ofthem.
It is directed that contractor shall allocate 3 points per candidate area for plant facility.
Installation of control point monuments shall be permanent ones with parametric information including elevations and X-Y coordinates engraved on it. This