Watch our series of short videos on the importance of the
Sacramento-San Joaquin Delta, how it works as a water hub for
California and the challenges it is facing.
When a person opens a spigot to draw a glass of water, he or she
may be tapping a source close to home or hundreds of miles away.
Water gets to taps via a complex web of aqueducts, canals and
groundwater.
Learn more about our team in the office and on the Board of
Directors and how you can support our nonprofit mission by
donating in someone’s honor or memory, or becoming a regular
contributor or supporting specific projects.
Unlike California’s majestic rivers and massive dams and
conveyance systems, groundwater is out of sight and underground,
though no less plentiful. The state’s enormous cache of
underground water is a great natural resource and has contributed
to the state becoming the nation’s top agricultural producer and
leader in high-tech industries.
A new era of groundwater management began in 2014 in California
with the Sustainable Groundwater Management Act. The landmark law
turned 10 in 2024, with many challenges still ahead.
Be sure to reserve your spot for our popular fall programs before
your summer adventures begin. The tours, in particular, have
limited seating and may be sold out before you return!
Klamath River Tour | September 8-12
Join us on this special journey as
we examine water issues along the 263-mile Klamath River, from
its spring-fed headwaters in south-central Oregon to its
redwood-lined estuary on the Pacific Ocean in California. Among
the planned stops is the former site of Iron Gate Dam & Reservoir
for a firsthand look at restoration efforts following the
obsolete structure’s removal. Click here for more
details.
As we head into summer, be sure to
mark your calendars for our popular fall programs which will all
be opening for registration soon!
Importantly, we will launch our first-ever Klamath River Tour to
visit the watershed and, among other things, see how the
river has responded to the dismantling of four obsolete dams. It
will not be an annual tour, so don’t miss this opportunity!
Check out the event dates and registration
details:
President Donald Trump promised to break California’s water
rules wide open. So far, he’s mostly working within them. Five
months after Trump issued a pair of directives for federal
agencies to overturn state and Biden-era rules limiting water
deliveries, the federal government has done no such thing.
Instead, it’s quietly increasing water flows following the very
rules Trump once railed against — at least for
now. … What’s changed? For one, California had a
wet winter, which tends to smooth over political differences.
… Newsom has also aligned himself more with Trump on water,
as when he jilted Delta-area Democrats last month in pushing to
expedite a tunnel to move more supplies from Northern to
Southern California. More substantively, some of the water
districts that might be expected to agitate for Trump to
overturn Biden-era water rules concede that they actually allow
more deliveries than Trump’s version.
Other Trump administration and California water news:
… The Colorado River system rushes through
turbines inside Glen Canyon Dam on Lake Powell, producing
affordable, carbon-free hydropower. … Climate change and
chronic water overuse continue to constrict the mighty river’s
flows, though, jeopardizing the dam’s ability to produce
hydroelectric power. The lack of water has also created a slew
of environmental problems in the Grand Canyon’s ecosystem,
which sprawls below Glen Canyon Dam — most notably for an
ancient, threatened fish species, the humpback chub, which is
hunted by invasive smallmouth bass. Under Biden last year, the
U.S. Bureau of Reclamation finalized a decision that allows the
dam to periodically release surges of water that bypass the
machinery that generates power. These flows cool the river
below the dam, which curbs smallmouth bass reproduction. Utah
Republicans and power providers say that decision has only
further threatened the valuable energy source — and they hope
to undo it.
After sitting near capacity for almost a month, Lake Oroville
is beginning to slowly creep back down in water elevation as
the California Department of Water Resources steadily increases
outflows. Lake Oroville was reported at 896.35 feet in
elevation Monday and will likely lower more in the weeks to
come. DWR spokesperson Raquel Borrayo said the lake was once
again bolstered by a wet and snowy winter. “Thanks to
above-average precipitation and average snowpack levels in the
northern Sierra for the last three years, water levels at Lake
Oroville have been peaking in May and June and then slowly
declining to their low point around November,” Borrayo said.
Borrayo said the higher releases are sent into the Feather
River, though some of the water remains local. … On
Monday, inflows into Lake Oroville were estimated at 3,000
cubic feet per second.
Other reservoir and snowpack news around the West:
… Trump has found a perhaps obvious avenue to pursue his goal
to ensure the United States is getting a fair shake on the
world stage. But some experts fear bringing tariff threats and
“America First” rhetoric into the world of water negotiations
will backfire, and that the careful work of administering the
1944 water treaty could get damaged in the process.
… The treaty is a complex document, but it requires the
United States to deliver water from the Colorado River to
Mexico, and Mexico to deliver water from the Rio Grande to the
United States. … After Trump threatened tariffs in
April, Mexico’s president did announce an additional water
shipment to Texas from Mexico’s reservoirs on the Rio Grande.
But experts say there just isn’t enough water available for
Mexico to get back on track by October. … Many of
northern Mexico’s reservoirs are low or empty, and in some
places, a lack of rain means rivers run dry.
Operated by the U.S. Army Corps of Engineers, the
Bay Model is a giant hydraulic replica of San Francisco
Bay and the Sacramento-San Joaquin
Delta. It is housed in a converted World II-era
warehouse in Sausalito near San Francisco.
Hundreds of gallons of water are pumped through the
three-dimensional, 1.5-acre model to simulate a tidal ebb
and flow lasting 14 minutes.
As part of the historic Colorado
River Delta, the Salton Sea regularly filled and dried for
thousands of years due to its elevation of 237 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.
Drought—an extended period of
limited or no precipitation—is a fact of life in California and
the West, with water resources following boom-and-bust patterns.
During California’s 2012–2016 drought, much of the state
experienced severe drought conditions: significantly less
precipitation and snowpack, reduced streamflow and higher
temperatures. Those same conditions reappeared early in 2021
prompting Gov. Gavin Newsom in May to declare drought emergencies
in watersheds across 41 counties in California.
