Since their home lost running water around 2 p.m. on Sept. 27 from Hurricane Helene, Etiska Jackson and her husband, Jayme, have been driving back and forth between their home in Asheville, N.C., and her brother’s in Madison County, about 25 miles north. There, they wash their clothes, take showers and fetch water from a well to flush their toilet.

“I feel like I’m camping in my house,” Ms. Jackson, 61, who works as a receptionist at the Charles George VA Medical Center in Asheville, said from the front yard of her bungalow on Friday afternoon.

For Ms. Jackson, the most troubling part of not having running water is not knowing when it may return. “They can’t even give us a time frame,” she said.

About a foot of water poured out of the dark, gray sky when the remnants of Helene inundated Asheville and much of western North Carolina. More than a week later, not a drop comes out of most people’s faucets. For many of them, it could be weeks before that changes.

Bottled water was the only potable water that residents of the city of 94,000 had as of Friday. A treatment plant capable of serving a part of the city that accounts for about 20 percent of its needs was back at full capacity on Friday and city workers were sampling water in pipes to see if it was safe to drink, said Ben Woody, the assistant city manager. Residents have been told to boil any water that does come to them, before drinking it.