When Sonia Herbert, 78, opened a restaurant in Bombay Beach, a small California neighborhood about 80 miles northeast of San Diego, she welcomed the bustle of tourists and locals visiting the Salton Sea shoreline. Located in Imperial County, the lake and its wetlands offer crucial habitats for migratory birds and a refuge for people from the hot desert sun.
A shortage on the Colorado River has put tremendous pressure on the water supply that serves more than 40-million people in the Western United States.
But a punishing drought and the over allocation of the river have also created an urgent problem for California’s Salton Sea.
The demand for electric vehicles is surging in the U.S., sparked in part by the Biden administration’s Inflation Reduction Act and the subsidies it offers. But a looming supply shortage of lithium threatens to stall the EV transition.
Lawrence Berkeley Laboratory is leading a research project to profile the concentration of lithium in the geothermal field beneath California’s Salton Sea, and to explore the most environmentally benign way to extract it.
Brine from the geothermal field is already pumped to the surface to generate geothermal power, and recirculated back underground. Lithium could be extracted from brine before it is pumped underground. Eleven geothermal plants are now operating in the Salton Sea, which Berkeley Lab describes as “pilot” operations.
The Water News Network is San Diego County’s source for water news and information.
