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.
Some people in California and across the West struggle to access
safe, reliable and affordable water to meet their everyday needs
for drinking, cooking and sanitation.
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As atmospheric rivers blasted across California this year, they
brought epic amounts of rain and snow follwing a three-year
drought.
Devastating and deadly floods hit parts of the state and now all
eyes are on the potential for more flooding, particularly in
the San Joaquin Valley as the record amount of snow in the
Sierras melts with warmer temperatures.
With anticipated sea level rise and other impacts of a changing
climate, flood management is increasingly critical in California.
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The Foundation’s Central Valley Tour at
the end of April is nearing capacity and while there’s still some
space on the tour, there’s another very exciting opportunity
on the horizon this summer to engage directly with
groundwater experts from California and across the world.
With runoff from this year’s snow and rain boosting the levels
of California’s reservoirs, state water managers on Tuesday
announced plans to increase deliveries of supplies from the
State Water Project to 40% of full allotments, up from 30% last
month. The increased allocation, which had been widely
expected, means that suppliers serving 27 million Californians,
as well as some farming areas, will have substantially more
water available to use and store this year. But the Department
of Water Resources also said officials have had to limit
pumping from the Sacramento-San Joaquin River Delta this year
because of environmental protections for native fish.
Farmers in the critically overdrafted Tulare Lake Subbasin in
the San Joaquin Valley are bracing for escalating costs as
state and local agencies assess fees on wells and groundwater
pumped. For the first time, the California State Water
Resources Control Board last week placed the subbasin on
probationary status as part of regulations under the state’s
landmark 2014 Sustainable Groundwater Management Act, or SGMA.
… Kings County Farm Bureau Executive Director Dusty Ference
said new state and local groundwater-related fees will impact
farmers and communities.
Last fall, UC Riverside’s Dr. Hoori Ajami co-authored a study
looking at how long-term droughts are impacting river flows
across the US. We asked Dr. Ajami and The Nature Conservancy’s
lead river scientist, Dr. Bronwen Stanford, to tell us about
the study and its implications. First, what is a “baseflow
drought” and how is it distinct from a precipitation drought?
Hoori Ajami: Water in a stream has two sources: precipitation
and groundwater. “Baseflow” is groundwater’s contribution to a
stream’s flow. We were specifically interested to see how a
river’s baseflow changes after a precipitation drought. …”
From the Sacramento River to the coast, salmon populations have
struggled to survive, and fishing for salmon in California has
been canceled for the second season in a row, marking the third
season in the state’s history a fishing ban has been in place.
The heart of the problem: dams and climate change. …
Steve Lindley, director of NOAA’s Fisheries Ecology Division at
the Southwest Fisheries Science Center, said
the removal of dams from Oregon to Northern
California on the Klamath will help with survival even if
drought returns.
As the date of reckoning for excessive groundwater pumping in
Tulare County grows closer, lobbying by water managers and
growers has ramped up. The Friant Water Authority, desperate to
protect its newly rebuilt – yet still sinking –
Friant-Kern Canal, has beseeched the Water Resources Control
Board to get involved. Specifically, it has asked board members
to look into how the Eastern Tule Groundwater Sustainability
Agency (GSA) has, or has not, curbed over pumping that affects
the canal. Meanwhile, the Eastern Tule groundwater agency has
been doing a bit of its own lobbying. It recently hosted all
five members of the Water Board on three separate tours of the
region, including the canal. Because the tours were staggered,
there wasn’t a quorum of board members, which meant they
weren’t automatically open to the public.
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.