In 2013, the typical cost of tap water in San Francisco, California was less than half a penny per gallon. The water originates from a reservoir of snowmelt in Yosemite National Park, which is considered one of the freshest water sources worldwide.
Although tap water is generally safe to consume, many people prefer bottled versions. Americans spend more than a billion dollars on bottled water annually, according to the U.S. Environmental Protection Agency. In 2010, San Francisco created outdoor tap water stations in an attempt to dissuade individuals from buying bottled water. Approximately eight out of 10 plastic bottle containers end up in a landfill.