A heating planet and expanding commercial agriculture are putting increasing pressure on America’s vital aquifers — underground reservoirs that supply water to an estimated 145 million Americans, as well as supporting much of the nation’s food supply.
A series of atmospheric river events with heavy rain and snow have caused California water regulators to open flood gates on water storage facilities, but the uncertainty of when Mother Nature’s faucet will shut off has experts weighing the advantages and disadvantages of letting the precious resource run free.
The Department of Water Resources (DWR) is partnering with the State Water Resources Control Board to fast-track efforts to capture flood waters to recharge groundwater basins. Water captured during extreme wet periods such as the one California is now experiencing will be stored in groundwater basins for use during dry periods.
In late April 1996, Lake Powell sat at an elevation of 3,673 feet — just 27 feet below its maximum capacity. At that time of plenty, Arizona lawmakers worried that the state wasn’t using its full share of Colorado River water.
Instead of potentially ceding those flows to California, the state opened a kind of liquid piggy bank, storing away a share of its water for an uncertain future.
The Colorado is the second largest river that California depends on, second only to the Sacramento. Its enormous challenges tend to fall into the policy shadows in the Capitol’s water discussions. But climate change is rapidly reducing flows in this important river and that requires bold action.
Policymakers in Sacramento have a rare and golden opportunity to be part of a historic collaborative effort toward a broader solution.
If it looks like something that could transport you into the future, in a sense it is. A spaceship-sized hoop suspended from a helicopter is actually part of an advanced water detection system. The information it’s gathering, could help determine the future of California’s water supply – and where we store it.
“I’ve seen similar studies that say, ‘Hey, let’s not even think of building more above ground reservoirs. Let’s use all the empty space below,'” says Rosemary Knight, Ph.D., a professor of Geophysics and senior fellow at the Woods Institute for the Environment at Stanford University.
With a severe drought and an increased reliance on groundwater basins, Calif.’s Department of Water Resources released the final version of its California’s Groundwater – Update 2020 report. The report, also known as Bulletin 118, contains critical information about the condition and use of the state’s groundwater, which is especially important as California faces the real-time impacts of climate change and drought.
“Groundwater plays a central role in sustaining our state’s ecosystems, businesses, agriculture and people, with some Californians relying solely on groundwater for drinking water,” said DWR Director Karla Nemeth. “The updated California’s Groundwater provides key information for the state and locals to better understand and manage groundwater as we adapt to variations in climate and navigate a historic drought.”
The Water News Network is San Diego County’s source for water news and information.
