1849-83 Most Miners Arrive by Ocean, Hydraulic Mining Damages Valley and Foothills

 

 

 

1858-1915 Miller Lux Valley Cattle Empire, 1886 Riparian Rights, 1895 FolsomHydropower

 

 

1905 Salton Sea from Colorado Flooding, LA Plans Owens Valley Water Source

1913 Owens Water Delivered by Aqueduct to LA

 

1899-1923 Fight to Build Heth Hetchy for SF Water Supply, Hydropower

1934 Hetch Hethcy Water to San Francisco, 1936 Dam Raised

 

1930's Central Valley New Deal Projects, Snowfall for Irrigation, Power, Aqueducts South

 

1940's More Aqueduct Colorado Water to LA After Parker Dam

1940's San Diego and Imperial Valley All American Canal for Colorado Water

 

 

1951-68 State Water Project to Move Water South Around Delta Centered on Oroville Dam

 

1972 Central Valley Water Pumped over Tehachapi to LA Basin

 

California Precipitation and Climate Vary Dramatically by Year and Region

Sierra and Cascades N Cal Snowpac Runoff Determines Water Available for Crops

 

1970-Present 90% of California Wetlands Lost, Higher than Over half in Other US

 

1980's-Present Controversy of Peripheral Canal and Ecosystems of Delta

 

Past and Future Plans for Preserving Delta In Limbo as Global Warming Threat Looms

 

1983-Present LA Water Limited By Mono Lake Preservation, Arizona Colorado Allotment

 

With Population Growth, California Water Supply Adequacy Is Uncertain in Future

Reservoirs Critical for Storage and Water Adequacy, Use Improvement Essential

 

1776 San Francisco Mission and Presidio Location Determined by Water Access

 

 

1850's -1929 Mountain Lake & Spring Valley Companies Provide San Francisco Water

 

1913 On - SF Builds Hetch Hetchy Amid Ongoing Environment Controversy

 

Southern Cal Water Still Limited to Owens Basin, Colorado River, SWP Aqueducts