Our California Water Map, recently updated, is one of our most popular products. We also offer magazines, documentaries, posters, layperson guides and more. Our catalog offers a wide array of resources to help you understand the complex issues of water in California and the Southwest.
California’s groundwater is a great natural resource and has contributed to the state becoming the nation’s top agricultural producer and a leader in high-tech industries. Groundwater is an asset that is increasingly relied upon by municipalities, industry and agriculture and it will play an important role in the future sustainability of California’s overall water supply.
In 1983, a landmark California Supreme Court ruling extended the public trust doctrine to tributary creeks that feed Mono Lake, which is a navigable water body even though the creeks themselves were not. The ruling marked a dramatic shift in water law and forced Los Angeles to cut back its take of water from those creeks in the Eastern Sierra to preserve the lake.
Now, a state appellate court has for the first time extended that same public trust doctrine to groundwater that feeds a navigable river, in this case the Scott River flowing through a picturesque valley of farms and alfalfa in Siskiyou County in the northern reaches of California.
President Trump on Friday directed federal agencies to speed up their environmental review of major water projects in California and to develop plans to suspend or revise regulations that hamper water deliveries. The directive will have little immediate practical effect. But it comes a bit more than two weeks before a midterm election in which some Central Valley Republicans are in close races to hold on to their congressional seats.
President Donald Trump was expected to intervene in one of California’s most contentious water wars Friday by signing a memorandum designed to scuttle state regulators’ plans to keep more water in the rivers at the expense of farms and cities.
Trump was expected to sign the memo Friday afternoon in Arizona, alongside Rep. Jeff Denham, a Republican from the San Joaquin Valley, according to Politico. Denham, R-Turlock, has been pleading with the Trump administration for weeks to block the state’s plan.
In 1983, a landmark California Supreme Court ruling forced Los Angeles to cut back its take of water from Eastern Sierra creeks that fed Mono Lake. Some 35 years later, an appellate court concluded the same public trust doctrine that applied in the Mono Lake case also applies to groundwater that feeds a navigable river in a picturesque corner of far Northern California. But will this latest ruling have the same impact on California water resources as the historic Mono Lake decision?
State officials said today [Oct. 18] they are “racing” to implement erosion control measures before the start of the rainy season on hills left bare by the Carr Fire. … [Clint] Snyder [assistant executive officer, Central Valley Regional Water Quality Control Board] said the erosion control is focused on protecting human life and property, preserving drinking water sources in the Sacramento River and wildlife.
Wetlands are among the most important ecosystems in the world. They produce high levels of oxygen, filter toxic chemicals out of water, reduce flooding and erosion, recharge groundwater and provide a diverse range of recreational opportunities from fishing and hunting to photography. They also serve as critical habitat for wildlife, including a large percentage of plants and animals on California’s endangered species list.
As part of the historic Colorado River Delta, the Salton Sea regularly filled and dried for thousands of years due to its elevation of 232 feet below sea level.
The most recent version of the Salton Sea was formed in 1905 when the Colorado River broke through a series of dikes and flooded the seabed for two years, creating California’s largest inland body of water. The Salton Sea, which is saltier than the Pacific Ocean, includes 130 miles of shoreline and is larger than Lake Tahoe.