Scientific Observation Hole #1 Kilauea East Rift Zone, Hawaii : summary report of drilling operations

"The Scientific Observation Hole program ("SOH") was undertaken as both a scientific research project, and to aid in evaluating the geothermal potential of the Kilauea East Rift Zone on the island of Hawaii. SOH-1 was the second in a series of 4 planned Scientific Observation Holes to be drilled in the Kilauea East Rift Zone. The target depth for the SOH's is 4,000 to 6,500 feet. Actual completion depth of each hole depends on drilling conditions, temperature and a number of other factors which are evaluated on a continuing basis as the holes are drilled. The drilling program was designed to remain as flexable as possible to accommodate a variety of potential situations as they are encountered.