IBM and the Sonoma County Water Agency (SCWA), which supplies water to more than 600,000 people, have teamed up to address the pressing problem of water management in the heart of Northern California's wine country.From aging infrastructure to population growth to climate change, California's strained water supply faces a complex set of challenges and demands that threaten the future of the state's population, economy and environment. According to the California Department of Water Resources, the state has experienced below average precipitation and runoff since the fall of 2006, making this the fourth year of serious drought. Recently, California's governor set forth a statewide goal for all water agencies to reach a 20 percent reduction in water use by the year 2020.