Sierra Springs
Sierra Springs is a brand of spring water that was first sold in the State of California in 1950 . It is distributed on the US west coast and eastern Texas .
The Sierra Springs water comes from a protected spring and, according to the manufacturer, contains a “natural mixture of minerals” which give the water “a refreshing, clean taste”.
In the TV series Monk , Sierra Springs is the only water Monk drinks until season five. In later episodes, Monk switches to the fictional Summit Creek brand.