Drinking water supply and sanitation in the United States in White Pine County, north of the city straddling the Utah border and other areas, pumping it to Las Vegas through a US$2 billion pipeline. Phoenix draws about half of its drinking water from the Salt River–Verde River watershed, and about 40% from the Colorado River further downstream at Lake Havasu through the Central Arizona Project. Los Angeles obtains about half of its drinking water from the Owens River and Mono Lake through the Los Angeles Aqueduct, with additional supplies from Lake Havasu through the Colorado River Aqueduct. San Diego imports nearly 90 percent of its water from other areas,
Havasu Creek the trail and continuing downstream. The hike is long, difficult, and rugged, and it is advisable only for experienced hikers. The creek ends at the confluence, where there are some camping areas. This spot is also popular for river rafters to stop and to head up the canyon. Flooding is common along Havasu Creek. A government report lists 14 "historic floods" from 1899 to 1993. One such flood occurred on August 17, 2008, when the Redlands Dam on Havasu Creek burst after days of heavy rain. The floodwaters' threat to human life led local authorities to evacuate the village. Rescue