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Figure F4. Conceptual drilling and long-term observatory plan for the deepest site, NT3-01. Drilling is planned to proceed with a mix of logging while drilling (LWD) and coring with casing to total depth, followed by sidetracking to core the prime fault targets and install monitoring instrumentation. Sensors shown here are positioned schematically. A number of sensor elements are not shown for clarity, including temperature arrays and fluid pressure sensors. Packers isolate perforated zones for fluid communication to the formation above, below, and inside each of the two target fault zones. Depths are based on seismic profile Line 5 shown in Figure F3. The borehole deviation is shown conceptually and is not meant to represent true angle or scale.