COLUMBIA, S.C. — Relentless rains and floodwaters brought much of South Carolina to a standstill. Thousands warily watched rising creeks, others had to be rescued after water spilled into their homes. Still others helped save neighbors. The following are vignettes from people in the storm: ‘It just floated away’ Wilson McElveen lives on a hill in a place called Forest Acres, but just down the hill, neighbors were flooded out of their townhomes by water surging over a nearby dam. He said the rushing waters burst through the doors of one home, and emergency responders had to use an ax to break down the door of another townhome to rescue a woman. “We’ve seen people lose everything,” said his wife, Sharon McElveen, noting they lost only a small boat.