Back underground, rising water covered the air shaft, preventing the miners from tapping on the pipe, though for a time they used a hammer to bang on the rock ceiling, detectable by seismic equipment which was brought in by Federal mining officials. By noon Thursday, the miners had to retreat to the highest ground, about from the airshaft, near Entry No. 1. With water rising away, miner Randy Fogle estimated that they had about an hour left to live. Notes were written, prayers were said, and most of the miners roped themselves together, to die as a family. However, as dewatering continued, they noticed and confirmed the water had ceased to rise. Switching to survival mode, the drenched miners sought to conserve resources and sat back to back to fight hypothermia in their environment. Crew chief Fogle in particular encouraged them, confident of rescue. Dennis Hall's lunch pail was discovered floating and was retrieved, with the still dry corned beef sandwich his wife had made him, and a bottle of Pepsi, while Thomas Foy found two Mountain Dews on one of their machines. The miners at this point could hear the drilling getting nearer, but at 1:50a.m. Friday it stopped.