National Park officials have asked people at the North Rim of the Grand Canyon to limit their water usage as crews work to fix a pump that supplies the water.
Visitors to the North Rim have been asked to flush toilets less frequently and take shorter showers and North Kaibab Trail backpackers must hike in their own water. The Grand Canyon Lodge is using disposable plates and is serving water only on request.
About 600,000 people visited the North Rim last year, one-tenth of all visitors to Grand Canyon.
Park spokeswoman Emily Davis said this is not affecting the more popular South Rim. All of Grand Canyon gets its drinking water from Roaring Springs, but there are two separate lines that supply the north and south rims.
"This is not part of the trans-canyon water line," Davis said. "This is a line that is only supplying the North Rim. The trans-canyon water line goes from Roaring Springs, down the canyon, across the Colorado River then up to the south rim. So it's the same water source, two separate lines."
The park is still assessing the environmental impact of replacing the trans-canyon pipeline, a $124 million project.
Park officials say mandatory restrictions may occur if repairs take longer on the North Rim.