Soil investigation located in the area of PT. Pertamina RU III, Plaju City, South Sumatra Province aims to conduct a soil investigation survey in the Green Refinery Area of the RU III Plaju Refinery, laboratory testing, and geotechnical analysis in the form of soil carrying capacity and foundation and its potential decline.

We conducted laboratory testing with 24 to 6 drilling points, Twelve (12) sondir test points or cone penetration test (CPT) capacity of 2.5 tons, and Six (6) deep drill points and a Standard Penetration Test (SPT) interval of 2m with a drill depth of 60m with the taking of 4 uninterrupted samples (UDS) per point.