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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For years, scientists have said that atmospheric rivers can
either make or break the water supplies of thirsty California
cities and farms. For the last two winters, a steady succession
of these giant “rivers in the sky” have dumped record-breaking
and drought-busting precipitation across the state, while
simultaneously causing catastrophic floods, landslides, and
dangerous blizzards. But now, new research has found that these
recent atmospheric rivers pale in comparison to some of the
monster storms that battered ancient California — a sobering
revelation that suggests to some experts that the state could
be revisited once again by such cataclysmic storms.
… The study’s findings do not bode well for a state
whose flood infrastructure was severely strained last year,
when a train of atmospheric rivers breached numerous levees,
flooded communities and re-filled once dry Tulare Lake.
The Pacific Northwest lays claim to well over two-fifths of
America’s dam-derived electricity. So when a drought hits the
region, the nation takes notice. That happened in 2023
when, according to a recent report, U.S. hydroelectric
power hit its lowest level in 22 years. … Last year offered
energy providers in the West a glimpse of the conditions they
may need to adapt to as the world warms and seasonal weather
patterns shift. While models predict climate change will plunge
California and the Southwest deeper into drought, what awaits
Washington and Oregon is less clear.
The Sacramento-San Joaquin River Delta faces significant
challenges affecting the health of its waterways and ecosystem,
and stewards say state agencies must accelerate efforts to
prepare for the impacts of climate change and a growing urban
landscape. Delta Stewardship Council staff presented the
Delta Plan Five Year Review on Thursday, recommending numerous
measures to preserve precious water and environmental habitats
against future crises such as extreme drought, sea level rise
and earthquakes. The council recommended that stewards work
with state regulators to improve the delta’s ecosystems and
reduce reliance on delta water, and with landowners to identify
affordable uses of sinking land for sustainable farming.
Water users in the Mid-Kings River Groundwater Sustainability
Agency shot down a proposed pumping fee that would have been
nearly $100 per acre-foot. That sends the Mid-Kings River
GSA back to the drawing board, with local stakeholders calling
for more input in the next proposal. The
backstory: California views that the GSA – which comprises
of water users in the Kings County Water District, the City of
Hanford and Kings County – has not done enough to manage
groundwater pumping through the Sustainable Groundwater
Management Act (SGMA). SGMA was passed by the Legislature
in 2014, and it governs how agencies in critically overdrafted
areas achieve groundwater sustainability.
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.