The construction of Glen Canyon Dam in north-central Arizona also
created Lake Powell. Lake Powell serves as a holding tank for the
Colorado River Upper Basin States: Colorado, New Mexico, Utah and
Wyoming.
Two years ago, this unprecedented megadrought prompted all
seven [Colorado River Basin] states to agree, for the first
time, to a dual drought contingency plan — one for the upper
basin and one for the lower. … But in the upper basin,
though the states agreed to their own drought contingency plan,
they still haven’t agreed on the biggest, most controversial of
the plan’s elements: setting aside up to 500,000 acre-feet of
water in a special, protected drought pool in Lake Powell.
[G]rowers in the Palo Verde Irrigation District are taking part
in a new $38-million program funded by the federal Bureau of
Reclamation, the Metropolitan Water District of Southern
California and other water agencies in Arizona and Nevada. The
farmers are paid to leave a portion of their lands dry and
fallow, and the water saved over the next three years is
expected to translate into 3 feet of additional water in Lake
Mead, which has declined to its lowest levels since
it was filled in the 1930s following the construction of Hoover
Dam.
Climate change is poised to result in a worldwide water crisis,
and international institutions and governments have not done
enough to prepare, according to a report released Tuesday by
the World Meteorological Organization (WMO). The report
determined that as of 2018, some 3.6 billion people did not
have sufficient access to water at least one month every year.
… The report follows a summer that, in the U.S. alone,
laid bare the threat of climate change to water supply and
infrastructure. Lake Mead and the Colorado River saw their
first-ever federal water shortage declaration in
August, two months after its water levels hit an all-time
low.
State and federal officials told a Senate panel Wednesday that
there may be long-term solutions to the historic drought
gripping the West, and the water shortages that come with it,
but that the short-term outlook remains grim. The hearing comes
against the backdrop of a 20-year-long drought has left about
90% of the West affected. Sen. Mark Kelly, D-Ariz., said
tree-ring and soil evidence indicates that the region may be
going through the worst drought in 1,200 years – certainly the
worst in the 100 years or so that records have been kept.
The Colorado River Water Conservation District staff plans to
present its own framework for a water-savings plan — separate
from one the state of Colorado is developing — at its October
board meeting. The Glenwood Springs-based River District
undertook its own investigation of a plan — known as demand
management — that would pay water users to consume less and
send the saved water downstream to Lake Powell.
New projections show that Lake Mead and Lake Powell could reach
“critically low reservoir elevations” sooner than expected,
spurring experts to say that “bold actions” will be needed to
change course. The Bureau of Reclamation report released
Thursday shows an 88% chance that Lake Powell could fall below
3,525 feet by next August, a level that would endanger
hydropower production, with chances Lake Mead will hit critical
levels in the next few years.
Two years ago, a pact to safeguard the West’s shrinking water
supplies took effect at a ceremony high above the Colorado
River. On a terrace overlooking Hoover Dam, water officials
from seven states that rely on the river had gathered to sign a
deal in hopes of preventing reservoirs from falling to
critically low levels. The audience that broke into applause
included officials from major water districts across the West
that supply water to Denver, Phoenix and Los Angeles. But
notably absent from the May 2019 ceremony were representatives
of California’s Imperial Irrigation District, the single
largest user of Colorado River water.
Importing muddy water from the Mississippi
River to save Arizona from drought could be as simple as
landing a man on the moon. As droughts force local
communities to find alternative solutions to water shortages,
Arizonans could turn to importing flood water in the
future. An interstate pipeline would be a lengthy project
in terms of time and effort that in a race against time isn’t
an immediate answer, rather a commitment that would test the
resolve of the state Legislature and Arizonans.
So Southern Californians didn’t decrease their water usage in
July, despite Gov. Gavin Newsom’s request for a voluntary 15%
cutback? Well, of course not. The dusty lake beds, the dry
spigots, the serious water-use cutback orders and the most
frightening wildfires (so far, anyway) have been in Northern
California, and that’s where Newsom focused his most dire
warnings.
Though summer rainfall brought some relief to the Southwest,
the unrelenting drought there is about to get worse with La
Niña on the horizon, according to David DeWitt, director at the
National Oceanic and Atmospheric Administration’s Climate
Prediction Center. … La Niña is a natural phenomenon marked
by cooler-than-average sea surface temperatures across the
central and eastern Pacific Ocean near the equator, which
causes shifts in weather across the globe. In the Southwest, La
Niña typically causes the jet stream — upper-level winds that
carry storms around the globe — to shift northward. That means
less rainfall for a region that desperately needs it.
The U.S. government released projections Wednesday that
indicate an even more troubling outlook for a
river that serves 40 million people in the American West.
The Bureau of Reclamation recently declared the first-ever
shortage on the Colorado River, which means Arizona, Nevada and
Mexico will get less water than normal next year. By 2025,
there’s a 66% chance Lake Mead, a barometer for how much river
water some states get, will reach a level where California
would be in its second phase of cuts. The nation’s most
populated state has the most senior rights to river water.
Phoenix is a rapidly growing metropolitan area in a desert. As
the population increases, it will be more and more challenging
to supply water, food and energy — three essential resources
that are interconnected in complex and competing ways.
Inside the tower is a U.S. Geological
Survey streamgage that will mark
its centennial year of monitoring the river on
October 1, 2021. At a time when jazz music was exploding
and liquor was
prohibited, the streamgage began
collecting information about the water’s
level and flow. USGS scientists chose the site in
1921 because it was readily accessible and strategically
located to study the hydrology of the Colorado River drainage
basin. Now, seven states within
the basin depend on the river for water
supply and hydropower production.
Back when the Colorado River Compact was being negotiated about
100 years ago, water was not viewed as a problem. Officials
deemed there was plenty to go around. Fast forward a century
and the seven Colorado River Basin states – particularly the
three lower basin states of California, Arizona, and Nevada –
are using more than the system can sustain….Chris Harris,
executive director of the Colorado River Board of California,
says the basin states must grapple with the “new normal” of
reduced flows in a river system once thought to provide ample
water for the West….Harris says it’s not just the
sustainability of the Colorado River system that needs
addressing, but the wider Western water reliability of the
federal Central Valley Project (CVP) and California’s State
Water Project (SWP).
More than 94 percent of the West is in drought this week,
according to the US Drought Monitor, with six states entirely
in drought status: California, Nevada, Oregon, Idaho, Utah, and
Montana. Parts of the West saw record-setting rainfall that
brought some slight relief to the region, but most areas remain
dry. Against the backdrop of climate change-fueled drought,
wildfires have charred nearly 6 million acres of vegetation
across the region. Fire experts say that dry and windy
conditions create a prime environment for wildfires to spark
and spread.
Utah’s drought-induced water crisis has softened somewhat after
a string of monsoons, but the state’s water supplies are far
from safe, with reservoirs across the state falling below 40%
full, state officials told lawmakers Tuesday. Only a massive
snowpack this winter can assure adequate supplies going into
next year, and even then, Utah’s water future remains uncertain
in the face of long-term drought and climate change. In
July the entire state was in extreme or exceptional drought and
Utah’s two largest lakes hit their lowest levels ever.
The scientific consensus is that human-caused climate change
has in recent decades raised average temperatures in the West
about 1.8 degrees Fahrenheit, and nearly two full degrees
on maximum temperature days, according to Matthew Lachniet, a
geoscience professor at the University of Nevada, Las Vegas.
The days of Coloradans putting off climate change as a worry
for hurricane-ravaged Louisiana or a water-challenged Middle
East now seem to be over. Following are just a few of the
ways “climate change now” made its full force known in the
Rocky Mountains this year and showed its impact on everyday
life.
It’s always alfalfa season in Arizona. In most other parts of
the country, the perennial crop grows tall enough to harvest
just a few times a year. But in the sun-drenched Southwest, the
irrigated fields allow the crop to grow year-round, to the tune
of 8.5 tons harvested for every acre and $397 million a year.
All farmers need to do is add water. At least that’s been the
case for the many decades that alfalfa has boomed and bloomed
in the Arizona desert, providing feed to the region’s
megalithic dairy industry. Now, accelerating climate change and
depleting water availability could change this.
The Colorado River Basin is enduring two decades of drought,
and water shortages are on the horizon. But scientists say this
isn’t the worst-case scenario. The region has undergone longer,
deeper droughts in the past. KNAU’s Melissa Sevigny spoke with
paleoclimatologist Matt Lachniet of the University of
Nevada-Las Vegas about how knowing the past can help us plan
for a warmer, drier future.
This whole reservoir system along the Colorado River Basin was
designed to get us through the drought years. Why isn’t it
working? A glimpse into the history of the system, how it was
designed and the impacts of climate change sheds light on why
it was destined to fail — and why it may never recover.
The Bureau of Reclamation recently declared a water shortage on
the Colorado River, but that hasn’t stopped states from
proposing new water projects. Just about every drop on the
Colorado River is accounted for. But climate change has reduced
the amount of water in the system. Gary Wockner is with
Save the Colorado, a conservation group that is tracking new
projects.
A 20-year, climate change-fueled megadrought has dealt a double
blow to Blue Mesa this summer. The dry conditions have led to
lower levels directly, but the lake is also hurting from
drought problems in other states. For the first time, the
federal government is taking emergency action by taking water
from Blue Mesa to help out another reservoir — Lake Powell on
the Utah-Arizona border….The water taken from Blue Mesa is
being used to make sure hydroelectric power turbines at Lake
Powell can keep spinning and generating electricity for
millions of people in the West…
Reclamation’s 24-month study is a staple forecasting
product for the federal agency that manages a chain of dams in
the watershed, including those that control lakes Mead and
Powell, the country’s largest reservoirs — and currently two of
its most consequential. The reservoirs are a key source of
drinking water for about 40 million people, plus they store
water that irrigates millions of acres of farmland and
generates electricity for the Southwest. The reservoirs are
also alarmingly dehydrated right now — about one-third full,
the lowest since they were first filled. The entire basin
is on alert.
As a headwaters state, Colorado has many interstate compacts
that set rules for how the state must share the rivers that
originate within its borders with downstream states. On several
of these rivers, water users have had to modify their water use
to meet compact requirements. That day may be coming for
the Colorado River. A new report explores what Colorado
River water users can learn from experiences with compact
administration on other rivers.
The federal agency that distributes electricity from hydropower
plants in the Upper Colorado River Basin will ask its
customers, including more than 50 here in Colorado, to help
offset rising costs linked to Lake Powell’s inability to
produce as much power due to drought. The Western Area Power
Administration (WAPA), which distributes Lake Powell’s
electricity, is gathering public comments and asking its
customers how best to cope with long-term drought conditions
that have pushed Powell and other reservoirs to historically
low levels.
For the first time in history, the federal government has
declared a water shortage on the Colorado River, which serves
as a lifeline to more than 40 million people in western states
like Arizona and California. States that are used to
receiving substantial amounts of water from the river are going
to be receiving considerable cuts in water availability. The
river has served as a source of affordable hydraulic power and
provides water for irrigation systems to countless farms in the
region.
They all remember when the San Luis Valley brimmed with water.
South of San Luis, Ronda Lobato raced the rising floodwaters in
San Francisco Creek every spring to fill sandbags that
protected her grandparents’ farm. North of Center, potato
farmer Sheldon Rockey faced so much spring mud that he had to
learn to extract his stuck tractor. Outside Monte Vista,
Tyler Mitchell needed only a hand shovel on the family farm
near Monte Vista to reach shallow underground flows in the
Valley’s once-abundant water table.
This year’s unprecedented shortage declaration for the Colorado
River should galvanize all Colorado Basin states to redouble
their efforts to curtail wasteful and unnecessary uses of water
and build more resilient communities. The issue gains urgency
with the realization that next year is unlikely to bring
significant relief. Action now is needed to maintain the supply
drinking water in 2022, 2023, and beyond.
There’s less water. What do we do? As the reservoirs behind
Hoover and Glen Canyon dams on the Colorado drop to record
lows, as irrigators in central New Mexico struggle to water
crops after an early start and early end to their irrigation
seasons, as I spend countless hours with reporters from across
the country looking for help understanding all of this, as my
own river goes dry, it remains the central question. And I do
not know the answer.
When it comes to water supplies in California and the U.S.
Southwest, the news has been remarkably grim in recent weeks.
One story detailed how inn owners in Mendocino County — which
has no municipal water system — were begging guests not to use
showers because their wells had dried up. Another noted that
for the first time ever, the federal government had declared a
Colorado River water shortage. The river’s large adjacent
reservoirs, Lake Mead and Lake Powell, provide water to 40
million residents of California and six other Western
states.
Arizona Democratic Senator Mark Kelly is calling for a U.S.
Senate subcommittee hearing on this week’s first-ever Colorado
River shortage declaration. It comes as region-wide drought has
heightened stress on western water resources. KNAU’s Ryan
Heinsius reports. Kelly wants the Senate to examine how
the decision could impact Arizona cities, tribal communities
and farmers. As a member of the Energy and Natural Resources
Committee, he says he’s concerned about the region’s dwindling
reservoirs.
In the wake of the U.S. Bureau of Reclamation (USBR) declaring
a federal water shortage of the Colorado River Basin, NGWA is
again stressing the need for increased funding for aquifer
recharge and water reuse projects in the western United States.
On August 16, the USBR declared its first-ever water shortage
of the Colorado River Basin, which will trigger a smaller
amount of water distributed from Lake Mead and cuts to
individual state water allocations.
In this summer of wildfires, heat waves and drought, there was
another bit of bad environmental news out of the West this
week. Federal officials declared a water shortage at Lake Mead,
the huge reservoir on the Colorado River near Las Vegas,
setting off sharp cuts in water to Arizona farmers next
year…. The declaration, and the mandatory supply cuts,
had long been expected. What is less certain is how much the
reductions will help. Will more cuts be necessary, and, if so,
when?
A two-decade-long megadrought along the Colorado River is
pushing seven Western states and parts of Mexico into a formal
shortage declaration, forcing water delivery cuts to the
Southwest that are just the beginning of the pain climate
change promises to bring to the region. Climate scientists and
water managers have long seen this declaration coming, but
what’s alarming them is the speed with which the hot and dry
conditions over the past four years have shrunk the river’s two
main reservoirs, Lake Mead and Lake Powell, to levels not seen
since they were first filled.
Southern California’s powerful water agency on Tuesday issued a
supply alert, calling on the region to conserve vital resources
and prepare for continued drought — a move that brings the
state’s largest population center closer to the tough water
restrictions imposed on communities elsewhere. The move comes
one day after U.S. officials declared the first-ever water
shortage on the Colorado River, which is a key source of
water for the region.
The federal government on Monday declared a first-ever water
shortage on the Colorado River, announcing
mandatory cutbacks next year that will bring major
challenges for Arizona farmers and reduce the water
allotments of Nevada and Mexico. The declaration of a shortage
by the U.S. Bureau of Reclamation has been anticipated for
months and was triggered by the spiraling decline of Lake Mead,
which stores water used by Arizona, Nevada, California and
Mexico.
U.S. officials on Monday are expected to declare the first-ever
water shortage from a river that serves 40 million people in
the West, triggering cuts to some Arizona farmers next year
amid a gripping drought. Water levels at the largest
reservoir on the Colorado River — Lake Mead — have fallen to
record lows … underscoring the acute water challenges
for a region facing a growing population and a drought that is
being worsened by hotter, drier weather brought on by climate
change.
Officials in Lower Colorado River Basin states want to slow the
decline of Lake Mead’s water levels over the next few years by
paying Southern California farmers not to plant crops. It’s not
a plan that Bill Hasencamp, manager of Colorado River resources
for the Metropolitan Water District of Southern California,
considers a “drought buster,” but it will reduce lake level
decline by up to 3 feet over the next three years, he said.
A harvester rumbles through the fields in the early morning
light, mowing down rows of corn and chopping up ears, husks and
stalks into mulch for feed at a local dairy. The cows won’t get
their salad next year, at least not from this farm. There won’t
be enough water to plant the corn crop. Climate change, drought
and high demand are expected to force the first-ever mandatory
cuts to a water supply that 40 million people across the
American West depend on — the Colorado River.
If the Colorado River were a bank account, it would be running
toward the red. The river, the lifeblood for several Western
states, is being squeezed by overuse and plunging supply — as
temperatures stay on the upswing year after year, and thirsty
soils rapidly absorb the bulk of moisture from a dwindling
annual snowpack. The conclusion is “inescapable,” Colorado
River District Manager Andy Mueller said Monday.
The “bathtub ring” at Lake Mead has become a familiar sight.
The water level in the lake is the lowest it has been since the
Hoover Dam, which created the lake, was built in the 1930s.
Those low levels have been decades in the making. … The
record low levels mean that later this month the federal
government is expected to declare an official water shortage on
the Colorado River which feeds Lake Powell. That shortage
declaration will mean a 20% cut in Arizona’s allotment of
Colorado River water.
A thick, white band of newly exposed rock face stretches high
above boaters’ heads at Lake Powell, creating a sharp contrast
against the famous red desert terrain as their vessels weave
through tight canyons that were once underwater. It’s a stark
reminder of how far the water level has fallen at the massive
reservoir on the Utah-Arizona border. Last year, it was more
than 50 feet (15 meters) higher. The level at the popular
destination for houseboat vacations is at a historic low amid
a megadrought engulfing the U.S. West.
Large water agencies like Denver Water and Aurora Water say
they do have ongoing conservation efforts they take seriously,
but that fast population growth on the Front Range overwhelms
potential savings and they need new water storage. It
would be much better for Colorado’s environment, the
conservation groups respond — not to mention cheaper — to
acquire water by using less of it, rather than spending
billions of dollars on dams and diversions of Western Slope
water.
A “mega-drought” across the Southwest will force the federal
government to declare a water shortage on the Colorado River
this month. The decision would be historic for the watershed,
which serves 40 million people in seven states: California,
Arizona, Nevada, New Mexico, Utah, Colorado and Wyoming. The
river system provides irrigation that turns desert into
farmland and is an important source of drinking water and
hydroelectric power.
For decades, the Lake Powell and Lake Mead reservoirs, which
bracket the Grand Canyon, have been the major savings accounts
for water in the Western United States. Built on the Colorado
River, the country’s two largest reservoirs have enabled
Western farms and cities from Los Angeles to Denver to have a
stable water supply throughout a relentless 21-year
megadrought. But today, Lake Powell and Lake Mead are hovering
at close to 33% of their full capacity, historic lows not seen
since the dams were first built.
The water levels of two major water bodies — including a major
reservoir — have reached historic lows in recent days amid
extreme drought conditions in the western United States. Water
levels at Lake Powell, the second-largest reservoir in the
country, reached a record low — below 3,555.10 feet, the
previous record low, reached in April 2005. As of Monday, the
elevation at the reservoir straddling the border between
Arizona and Utah was at 3,554.51 feet, according to data
tracked by the U.S. Bureau of Reclamation.
The water level in Lake Powell has dropped to the lowest level
since the U.S. government started filling the enormous
reservoir on the Colorado River in the 1960s — another sign of
the ravages of the Western drought. … The water
level has plunged as the American West experiences what
scientists are calling a “megadrought.” Too little water
is coming into the lake, and too much is being sent downriver
to maintain levels in Lake Mead, which is also
at historically low levels.
With water levels falling rapidly at Lake Powell on the
Arizona-Utah border, federal officials are taking what could be
the first of several steps to prop it up. This month the U.S.
Bureau of Reclamation started a six-month effort to raise the
lake around 3 feet by the end of 2021 by releasing 181,000 acre
feet of water from three upstream reservoirs. It comes as the
lake just Sunday fell below its lowest level on record.
Lake Powell will soon hit its lowest level since Glen Canyon
Dam started trapping the Colorado River’s water in 1963 — even
with emergency releases of water from reservoirs upstream. The
Bureau of Reclamation announced Thursday that the lake
elevation will soon drop below 3,555.1 feet above sea level,
the record set in 2005, back near the start of a 20-year dry
cycle plaguing the Colorado River Basin….The increasingly
dire situations at Lake Powell and its downstream partner Lake
Mead illustrate the stress on the Colorado River system….
The Secretary of the Interior, Deb Haaland, will visit Denver
to address the worsening drought and wildfire
conditions. The biggest area of concern is the deep
drought on the western slope. Haaland will be in Grand
Junction Friday talking about wildland fire preparedness and
response. On Saturday, Haaland will be in Ridgeway discussing
Colorado’s outdoor recreation economy.
A new report issued today by seven environmental non-profit
organizations examines ten strategies to bolster climate
resilience and mitigate the impact of climate change in the
Colorado River Basin, which is currently grappling with a
historic megadrought. A crucial source of water for over 40
million people, the Colorado River is facing severe declines in
stream flows and a looming federal shortage declaration as a
result of a decades-long drought and increasing temperatures.
A historic drought has desiccated much of the American West,
bringing reservoir levels to record lows and stoking fears of
catastrophic wildfires across the region. We spoke with two
members of the Water Policy Center research network and experts
on the Colorado River: Dr. Bonnie Colby of the University of
Arizona (she’s also a member of the Colorado River Research
Group) and John Fleck of the University of New Mexico. Prepare
to be surprised: we encountered some delightful optimism in
this wide-ranging conversation.
While the historic June 15 low for Lake Mead has drawn
headlines – “its lowest level on record since the reservoir was
filled in the 1930” – we’re about to hit a similar milestone
upstream at Lake Powell that has received less attention, but
may in fact be more important. It was co-author Eric Kuhn who
drew this to my attention – I hadn’t noticed. He notes that
sometime around July 24 give or take our eyeballing of the
Colorado Basin River Forecasting Center graph, Powell will
cross elevation 3,555 feet above sea level. That was the
previous post-filling low, on April 8, 2005.
Whether you’re a kayaker or an angler or a hard-core gardener
in Colorado, we get that this water thing is
confusing. … The drought and the overarching
impacts of climate change have already generated multiple
stories in 2021 and will be a big part of news coverage from
here on out. We get reader questions along the way about the
severity of the drought and what it means for Colorado
residents — here are a few of those questions, and some answers
from some key experts.
Emergency water releases from reservoirs upstream of Lake
Powell are underway to preserve the nation’s second-largest
reservoir’s ability to generate hydroelectric power. The Bureau
of Reclamation started releasing additional water Thursday from
Flaming Gorge reservoir in Wyoming. Additional water releases
from Blue Mesa reservoir in Colorado and Navajo reservoir in
New Mexico are planned to commence later this year. Emergency
releases could last until at least December, and could extend
into 2022. Lake Powell is projected to hit a record low in
July. It’s situated on the Colorado River, a drinking and
irrigation water source for more than 40 million people in the
Southwest.
The North American monsoon has returned to Colorado, and the
rain has brought some much-needed relief to some of the driest
parts of the state — after multiple back-to-back years of
almost no summer rain. … Gov. Jared Polis has recently
declared a drought emergency for the region and the rest of
western Colorado. … The seasonal moisture from the
tropics creates afternoon cloud cover that protects …
drought-stricken creeks from baking in the sun. The rain helps
lower the risk for wildfires. The timing of the monsoon is
vital to Colorado’s ecosystem, which evolved on its schedule.
The water levels behind the Colorado River’s biggest dams are
fast-approaching or already at record lows. The historic
21-year megadrought that is squeezing some Western states’
water supplies will also likely start showing up in energy
bills, because those dams can’t produce as much electricity.
The problem is most acute at the Upper Colorado River basin’s
largest reservoir: Lake Powell.
The Colorado River makes an impressive 1,400-mile journey from
Colorado, all the way to the U.S.-Mexico border. It starts as
snowpack in Rocky Mountain National Park in Northern Colorado
and makes its way westward to Utah. The Utah portion of the
river course starts on the Colorado Plateau before heading to
Moab, where the water sweeps by Arches and Canyonlands national
parks – both amazing landscapes eroded into canyons and mesas
by the Colorado and Green rivers.
The Colorado River is tapped out. Another dry year has left the
waterway that supplies 40 million people in the Southwest
parched. A prolonged 21-year warming and drying trend is
pushing the nation’s two largest reservoirs to record lows. For
the first time this summer, the federal government will declare
a shortage. Climate change is exacerbating the current drought.
Warming temperatures are upending how the water cycle functions
in the Southwest. The 1,450-mile long river acts as a drinking
water supply, a hydroelectric power generator, and an irrigator
of crop fields across seven Western states and two in Mexico.
The Bureau of Reclamation urges those recreating on or along
the Colorado River through Glen and Grand canyons to exercise
increased caution as summer energy demands may cause rapid
changes to the river’s flow. Unscheduled fluctuations in water
releases may occur without notice. Vessels should be secured to
withstand potential changes in water levels and campers should
avoid setting camp where a sudden river rise could reach tents
or other camping supplies.
The expected water cuts from the Colorado River as a result of
the Drought Contingency Plan (DCP) will likely mean higher
water utility rates, according to Fitch Ratings. The U.S.
Congress passed the DCP in 2019 to protect water levels in Lake
Powell and Lake Mead which provide water to Colorado River
basin states. Arizona, California, Colorado, Nevada, New
Mexico, Utah, and Wyoming, and Mexico entered into the DCP,
which mandates how water cuts will occur when the lakes drop to
certain levels, called tiers.
A pair of governors on Sunday called on the federal government
for help and pushed for solutions as their states grapple with
recording-breaking temperatures, drought and wildfires that
officials have said is being driven by climate change.
… The bipartisan plea follows a meeting last
week between President Joe Biden and other Western governors
during which he announced new federal response plans to help
address the wildfire threats and extreme heat being driven by
climate change. They include extending seasonal hiring, adding
“surge capacity” by training and equipping additional
personnel, and adding fire detection resources.
Massive buildings are sprouting from our desert landscapes,
their footprints normally more than a million square feet. The
structures are filled with computer servers processing and
storing huge amounts of data. … Duff is the only city
council member to vote no on a recently approved $800 million
data center – rumored to be for Facebook – after discovering
the facility would eventually use 1.75 million gallons of water
every day for cooling their rows of servers once fully
operational. This as state reservoirs like Lake Mead and rivers
like the Colorado are so low that federal restrictions are
likely to be triggered on Arizona’s water allocation as early
as next year.
The United States and Mexico are tussling over their dwindling
shared water supplies after years of unprecedented heat and
insufficient rainfall. Sustained drought on the middle-lower
Rio Grande since the mid-1990s means less Mexican water flows
to the U.S. The Colorado River Basin, which supplies seven U.S.
states and two Mexican states, is also at record low levels. A
1944 treaty between the U.S. and Mexico governs water relations
between the two neighbors.
For thousands of years, an Arizona tribe relied on the Colorado
River’s natural flooding patterns to farm….Now, gravity sends
the river water from the north end of the Colorado River Indian
Tribes reservation through 19th century canals to sustain
alfalfa, cotton, wheat, onions and potatoes, mainly by flooding
the fields. Some of those fields haven’t been producing lately
as the tribe contributes water to prop up Lake Mead to help
weather a historic drought in the American West…. As
Arizona faces mandatory cuts next year in its Colorado River
supply, the tribes see themselves as major players in the
future of water.
Gov. Jared Polis formally declared a drought emergency Friday
for almost two dozen western Colorado counties. Colorado’s
Drought Task Force, Agriculture Impact Task Force and Municipal
Water Task Force will remain active and responsive to local
needs, a release from the Colorado Water Conservation Board
states Friday.
As a warming climate reduces the river’s flow, [Utah State
University scientist Jack] Schmidt, 70, is making what could be
his most important push to shape the fate of his beloved
waterway. He and his colleagues are working to inject a dose of
scientific reality into public debate over water resources
that, the team says, is too often clouded by wishful or
outdated thinking. The biggest delusion: that there will be
enough water in a drier future to satisfy all the demands from
cities, farmers, power producers, and others, while still
protecting sensitive ecosystems and endangered species.
Climate change has plunged the Western U.S. into its worst
drought in two decades. And a record-breaking heat wave only
made things worse. In Arizona and Nevada, it’s been so hot that
doctors warned people they could get third-degree burns from
the asphalt. Wildfires raged in Montana and Utah. Power grids
in Texas strained as officials asked residents to limit
appliance use to avoid blackouts. The levels in Lake Mead,
which supplies water for millions of people, are at their
lowest since the 1930s.
Colorado River water managers could be pulled back to the
negotiating table as soon as next year to keep its biggest
reservoirs from declining further. The 2019 Drought Contingency
Plan was meant to give the U.S. and Mexican states that depend
on the river a roadmap to manage water shortages. That plan
requires the river’s biggest reservoir, Lake Mead, to drop to
unprecedented levels before conservation among all the lower
basin states — Arizona, Nevada and California — becomes
mandatory. California isn’t required to conserve water in the
reservoir until it drops to an elevation of 1,045 feet above
sea level.
As the federal government prepares to declare a first-ever
water shortage at Lake Mead, Arizona state leaders, Native
American tribes, and philanthropic and corporate foundations
are stepping up to help conserve water. This week, these
entities committed to funding an $8 million gap to complete a
landmark water conservation project with the Colorado River
Indian Tribes and the state of Arizona.
Lake Powell’s water level is the lowest it’s been in decades,
and the latest 24-month projections from the Arizona and Utah
reservoir show that it’s likely to drop even further — below a
critical threshold of 3,525 feet by next
year. A 20-year megadrought and a hotter climate
has contributed to shrinking water supplies in the
Colorado River. If Lake Powell’s levels continue to dwindle, it
could set off litigation between the seven states and the 40
million people that all rely on the Colorado River.
Camille Calimlim Touton, who has been serving as deputy
commissioner of the Bureau of Reclamation, was nominated by the
Biden administration Friday as Reclamation Commissioner. If
confirmed by the Senate, she would become the second woman and
the first Filipino-American to head the agency, which provides
water and power across the West, including in the Colorado
River Basin and California’s Central Valley.
Record-breaking heat and historic drought in the U.S. West are
doing little to discourage cities from planning to welcome
millions of new residents in the decades ahead. From Phoenix to
Boise, officials are preparing for a future both with more
people and less water, seeking to balance growth and
conservation. Development is constrained by the fact that 46%
of the 11-state Western region is federal land, managed by
agencies like the U.S. Forest Service and Bureau of Land
Management that are tasked with maintaining it for future
generations.
The Bureau of Reclamation announced that Carly Jerla will lead
the Department of the Interior’s efforts, as a senior water
resources program manager, to develop updated operating
rules for Colorado River reservoirs. The Colorado River
sustains ecosystems and economies across the southwestern
United States and northwestern Mexico. A number of operating
rules and agreements within the United States and with the
Republic of Mexico expire at the end of 2025.
As the Southwest prepares for what’s forecast to be another
mercilessly hot and dry summer, tensions over water scarcity
are rising like the mercury. Farmers are facing bleak growing
seasons and the possibility of farm failures in several areas
due to cutbacks in water allocations for irrigation, creating
friction between the ag community and cities on the dwindling
water supply in the region. Rural communities in Nevada and
elsewhere, already wary of incursions by urban areas into their
water supplies, are on high alert as the water crisis deepens.
Lucía Laguna carries her fate tattooed on her face — from the
corner of her mouth to her chin, black lines surf across her
coppery skin — the tribal art honoring her people will also
serve an important function later on. … But under the
merciless sun, Laguna, 51, worries about the fate of the river
and its impact on the Cucapá, her Indigenous people. A searing
drought is exacerbating the deadly heat in a region that long
ago saw its river flow diminished, after almost a century of
U.S. engineering projects, as well as a focus on water for
agriculture.
Lake Powell has drastically shriveled during 20 years of
drought, allowing dozens of miles of the Colorado River to
become a river again in world-famous Cataract Canyon. But why
have many of its legendary rapids failed to return? Three men
from Moab have made it their crusade to study that issue and to
document a stunning after-effect of Lake Powell: a river
struggling to cut its way through a monumental legacy of dried
mud.
The problem, as always, is that water keeps flowing from the
tap. Every other indicator is telling us we should be in red
alert right now about Arizona’s climate and water situation.
But when we turn the valve, even on these blazing days,
drinkable water flows. It’s a luxury in this season and this
place. And it makes it easy to turn away from the news. But we
shouldn’t. -Written by Tim Steller.
The water [that Utah] plans to tap for the Lake Powell pipeline
was previously promised to the Ute Indian Tribe, which is now
suing to get back its water and asserting that the
misappropriation is one of a decades-long string of racially
motivated schemes to deprive it of its rights and property.
Water is increasingly scarce in the Western U.S. — where 72
percent of the region is in “severe” drought, 26 percent is in
exceptional drought, and populations are booming. Insufficient
monsoon rains last summer and low snowpacks over the winter
left states like Arizona, Utah and Nevada without the typical
amount of water they need, and forecasts for the rainy summer
season don’t show promise. … The past two decades have been
the driest or the second driest in the last 1,200 years in the
West, posing existential questions about how to secure a
livable future in the region.
A crippling drought in the western US is dropping the water
level at Lake Mead and the Hoover Dam to a historically low
level, putting pressure on the region’s drinking water supply
and the dam’s electric capacity. By Thursday, Lake Mead’s water
level is expected to sink to the lowest it’s been since it
began filling during construction of the Hoover Dam, according
to Bureau of Reclamation spokeswoman Patricia Aaron.
With Lake Mead approaching critically-low levels, the Southern
Nevada Water Authority recently turned to the Legislature to
double-down on its existing strategy for using less water: turf
removal. … [Southern Nevada Water Authority general manager
John] Entsminger, in a recent interview, said the prohibition
would result in significant water savings. The removal of an
estimated 3,900 acres of decorative turf could save roughly 9.3
billion gallons of water annually — about 10 percent of the
state’s entire Colorado River allotment.
A punishing drought is gripping much of the western U.S.
Scientists are calling it a “mega-drought” brought on by
climate change. It’s taking a dramatic toll on the Colorado
River system that provides water to 40 million people in seven
states. For more than eight decades, the Hoover Dam has relied
on water from Nevada’s Lake Mead to cover up its backside. But
now at age 85 it finds itself uncomfortably exposed. Much of
the water the dam is supposed to be holding back is gone.
In Sin City, one thing that will soon become unforgivable is
useless grass. A new Nevada law will outlaw about 40% of the
grass in the Las Vegas area in an effort to conserve water amid
a drought that is drying up the region’s primary water source:
the Colorado River. Other cities and states around the US have
enacted temporary bans on lawns that must be watered, but
legislation signed Friday by the state’s governor, Steve
Sisolak, makes Nevada the first in the nation to enact a
permanent ban on certain categories of grass.
The WCWCD, along with the Utah Division of Water Resources, …
started making plans [in the 1990s] to import Colorado River
water from Lake Powell via a buried pipeline that would stretch
140 miles through rocky desert terrain, crossing some tribal
lands and sensitive habitats. The project has inched its way
forward over the decades since, finally advancing its
federally-required Environmental Impact Statement through the
public review process during the Trump administration, which
identified the pipeline as one of its infrastructure
priorities.
Lake Powell is within just a few feet of its low level ever
observed since it was first filled. Early season fires have
already torched over 400,000 acres in Colorado and California’s
reservoirs are 50 percent lower than they should be at this
time of year before summer has even officially begun. A year
after the skies over San Francisco glowed a hazy red as
wildfires choked the Bay Area, 2021 is shaping up to be the
year of real climate reckoning with drought in the western US
at historic levels.
Arizona and other Western states just lived through the driest
year in more than a century, with no drought relief in sight in
the near future, experts told a House panel last week. The
period from April 2020 to March 2021 was the driest in the last
126 years for Arizona and other Western states, witnesses said.
It capped a two-decade stretch that was the driest in more than
100 years that records have been kept – and one of the driest
in the past 1,200 years based on paleohydrology evidence, one
official said.
As reality plays out, I continue to read how the drought in the
American West is causing levels in Lake’s Mead and Powell to
plummet. I also continue to see no action or accountability to
take bold action to resolve the issue as uncontrolled
development continues in the greater Phoenix and Las Vegas
areas. … There are 17 desalination plants operating in
California and the one in Carlsbad — the Claude Bud Lewis
Desalination Plant — is the largest in the U.S. -Written by R.B. Provencher, a former manager for the
U.S. Department of Energy and retired in Idaho Falls.
Between Las Vegas and Arizona, Lake Mead, the body of water
that is fed by the Colorado River, dropped below 1,075 feet on
Tuesday. The low water marks are signaling what could be the
first-ever water shortage on the Colorado River, CNN reports.
The lake’s levels show a continuing decline, according to the
U.S. Bureau of Reclamation (USBR), and any hope of recovery
won’t happen until at least the end of 2022.
On the federal government’s drought map, the hardest-hit areas
— the driest of the dry — are shaded in crimson red. Looking at
the current map, the coloring makes it appear that someone
plunged a knife into Southern Nevada, and blood flowed to
portions of California, Utah, Arizona, New Mexico and even
Texas. One glance at this map and any reasonable person would
understand that the region needs to take its water conservation
efforts up several notches.
The USGS will collect high-resolution aerial imagery over
Grand Canyon National Park for approximately one week beginning
Saturday, May 29, to document, observe and track long-term
ecosystem changes in the Colorado River.
The Arizona Legislature wants to look into the feasibility of
pumping water from the Mississippi River to Arizona. But the
U.S. Bureau of Reclamation has already studied the idea, and
weighed in on the project in 2012. The agency studied factors
such as cost, legal issues, power use and the amount of time
the project would take. A report estimated the project could
cost up to $14 billion; the timetable was around 30
years.
Declining levels at the second-largest reservoir in the U.S.
have spurred officials in Colorado, Utah, Wyoming, and New
Mexico to search for ways to prop it up. Lake Powell on the
Colorado River is dropping rapidly amid one of the southwestern
watershed’s driest years on record. It’s currently forecast to
be at 29% of capacity by the end of September — the lowest
level since the reservoir first started filling in 1963. Its
sister reservoir downstream on the Colorado River, Lake Mead,
is also approaching a record low this year.
Arizona’s drought has lawmakers looking into drawing water from
the Mississippi River to be used here in the desert. “This kind
of project would be looking 20 years down the road,” said
Republican Rep. Tim Dunn from Yuma. Dunn sponsored
House Concurrent Memorial 2004, which got bipartisan support in
the Arizona legislature, and urges Congress to study a plan for
a pipeline that would take water out of the Mississippi River
near Davenport, Iowa.
Severe drought — largely connected to climate change — is
ravaging … the entire Western half of the United States, from
the Pacific Coast, across the Great Basin and desert Southwest,
and up through the Rockies to the Northern Plains. In
California, wells are drying up, forcing some homeowners to
drill new ones that are deeper and costlier. Lake Mead, on the
border of Arizona and Nevada, is so drained of Colorado River
water that the two states are facing the eventual possibility
of cuts in their supply.
Millions of people are betting on Arizona. They’re buying
homes, starting businesses, and families. The future of how we
use our water resources may dictate the future of their
success. … That question was addressed four decades earlier
with the Groundwater Management Act of 1980. The idea was the
law would ensure when water was taken out, just as much was put
back in, creating what they called a safe yield goal by
2025. Unfortunately, a new study released by ASU
researchers with the Kyl Center shows the law is not living up
to its promise as deep, thousands of years old aquifers
continue to be over-pumped.
The drought has some members of the Arizona Legislature
wondering if the state should look for a new source of water:
the Mississippi River. Conservationists wonder if lawmakers
should try a different approach. As Arizona braces for a
drought contingency plan to kick in, the Legislature has
floated the idea of damming the Mississippi and piping the
water here. The idea received overwhelming support among
lawmakers, though it is unclear if the project is viable. Sandy
Bahr, with the Sierra Club, told KJZZ’s The Show last month the
state needs to adjust its thinking about water, especially in
times of drought.
Ben Tobin has questions about the Grand Canyon’s caves. The
University of Kentucky geologist started learning about caves
as a young man, in part because his mother was a geologist, and
a childhood fascination grew over time. … When he was in
college, an internship in Arkansas doing cave tours got him
hooked, and eventually his work brought him out West, to Grand
Canyon National Park. Tobin specializes in what’s known as
karst hydrology. These are underground systems made up of
soluble rock such as limestone. To Tobin, caves are like
another world, with blind animals, fossils and archeological
finds.
Only one week remains to register for our May 20 virtual
Lower
Colorado River Tour where you can hear directly
from experts offering a range of perspectives on the most
contested and meticulously managed river in the United
States. Practically every drop of water in the
Colorado River is already allocated, but pressure on the
hard-working river continues to grow from myriad sources —
increasing population, declining habitat and climate
change.
Spring is generally a time of renewal for the watersheds of the
western United States. Warmed by the lengthening days, the
region’s towering mountain ranges shed their mantle of snow,
releasing freshets of water into welcoming streams and
reservoirs. This year, though, the cycle is in disarray.
Outside of the Olympic and Cascade ranges of Washington state,
winter snows were subpar. The spring melt has been a dud. From
the Klamath to the Colorado and Rio Grande, watersheds are
under stress once again, and water managers face difficult
tradeoffs between farms, fisheries, and at-home uses.
Arizona cities, towns, farmers and ranchers are preparing for
the first-ever cuts to the state’s allotment of Colorado River
water. The cuts are the result of a drought that’s lasted 26
years and will likely take effect in 2022. The so-called “Tier
1″ water shortage will affect some water users more severely
than others. … Farmers and ranchers in Pinal County are
already preparing, but it’s going to be a costly process.
The Colorado River Basin appears to be out of miracles this
spring. Five years after a “Miracle May” of record rainfall
staved off what had appeared to be the river’s first imminent
shortage in water deliveries, the hope for another in 2021 “is
fading quickly,” says the Colorado Basin River Forecast
Center’s latest report, released Thursday. That’s one more
piece of bad news for the Central Arizona Project. A first-time
shortage is now likely to slash deliveries of river water to
Central Arizona farmers starting in 2022 but won’t affect
drinking water supplies for Tucson, Phoenix and other cities,
or for tribes and industries that get CAP water.
Arizona is gearing up for the first-ever “Tier 1” shortage on
the Colorado River in 2022, which will trigger significant cuts
to the state’s annual allocation from its most important water
resource. As daunting as it sounds, the vast majority of
citizens and businesses will not be affected, state water
leaders said during a Colorado River Preparedness briefing last
week. Arizona is also well prepared to weather expected
shortages the next few years, and is in the process of
developing the next steps to protect and augment the river’s
supplies as the drought persists, said the state’s top two
water leaders.
Early May water supply volume forecasts are below to much below
normal throughout the Colorado River Basin and Great Basin.
Upper Colorado River Basin water supply forecasts range between
15-75% of the 1981-2010 historical April-July average. Great
Basin water supply forecasts are 10-70% of average. … Many
April-July volume forecasts fall in the bottom (driest) five on
record….The Lake Powell inflow forecast is 2.0 MAF (28% of
average), a 17% decrease from April….
Hear directly from a range of experts offering a variety of
perspectives on our May 20 virtual Lower Colorado River Tour as
they put into context the 20-plus year drought on what is the
most contested and meticulously managed river in the United
States. Among the experts featured are farmers, tribal
representatives, and managers from wildlife agencies, water
districts, the Bureau of Reclamation and others who will
discuss drought impacts, habitat projects, farming and
restoration efforts at the Salton Sea.
In 2021, access to running water and clean drinking water is a
given for most Americans. The Census Bureau has even considered
dropping a question on plumbing access from the U.S. census
questionnaire. But many of the nation’s tribes still lack
running water, access to clean water, and even flushing
toilets. Native American households are 19 times more likely
than white households to lack indoor plumbing, according to the
U.S. Water Alliance, and more likely to lack piped water
services than any other racial group. That problem is at an
inflection point for the Navajo Nation and 29 other tribes in
the Colorado River Basin, which stretches from the Rocky
Mountains to Mexico.
The US Bureau of Reclamation last week warned water users to
brace for a 500,000 acre-foot cut in water from the Colorado
River as a historic drought continues to tighten its grip on
the Southwest. The cutback comes on top of a 200,000 acre-foot
reduction Arizona water users agreed to last year in an effort
to put off this day of reckoning. The Central Arizona Project
provides more than a third of the state’s water. The reductions
will mostly impact farmers. The sparse snowpack this winter
soaked into the ground during the hot, dry spring — producing
little runoff.
Ever since I started working on Colorado River issues, I have
wanted to travel through the iconic landscape of the Grand
Canyon by boat. I was skeptical of my chances given the highly
coveted and limited number of permits, but this spring I was
lucky enough to be invited on a private trip. For 21 days, we
traveled through this remote stretch where the canyon walls
tower up to 4,000 feet above the river in some places. We
celebrated on the downstream side of big rapids and scrambled
up forgotten side canyons. We spied great blue herons and
merganser ducks on the river’s edge. We saw very few other
people.
With the Colorado River’s largest reservoir just 38% full and
declining toward the threshold of a first-ever shortage,
Arizona water officials convened an online meeting this week to
outline how the state will deal with water cutbacks, saying the
reductions will be “painful” but plans are in place to lessen
the blow for affected farmers next year. Lake Mead’s decline is
expected to trigger substantial reductions in water deliveries
in 2022 for Arizona, Nevada and Mexico. The largest of those
cuts will affect Arizona, slashing its Colorado River supplies
by 512,000 acre-feet, about a fifth of its total entitlement.
In a note of consolation for the pain some Arizona water users
will feel if Central Arizona Project supplies are cut next
year, state water leaders said Thursday: It will be planned
pain. Federal officials have said it’s likely Lake Mead at the
Nevada border will be low enough at the end of 2021 to trigger
the first major cutback in CAP deliveries to the Arizona’s
parched midsection. Arizona will lose 512,000 acre-feet of its
CAP supply — almost one-third of the $4 billion project’s total
supply, according to a 2019 drought contingency plan.
Water officials in Arizona say they are prepared to lose about
one-fifth of the water the state gets from the Colorado River
in what could be the first federally declared shortage in the
river that supplies millions of people in the U.S. West and
Mexico. Arizona stands to lose more than any other state in the
Colorado River basin that also takes in parts of Wyoming, New
Mexico, Utah, Colorado, Nevada and California. That’s because
Arizona agreed long ago to be the first in line for cuts in
exchange for federal funding for a canal system to deliver the
water to Arizona’s major metropolitan areas.
Arizona may be facing its first official declaration of water
shortage next year, a move that would trigger water cutbacks of
512,000 acre-feet — almost 20% of Arizona’s Colorado River
entitlement — affecting mainly agricultural users. The
24-Month Study on the Colorado River system, released this
month by the Bureau of Reclamation, projects that in
June water levels in Lake Mead will fall below 1,075 feet
for the first time, which would put the state in a Tier 1
shortage.
The Colorado River cuts through the Grand Canyon, providing
water for about 40 million people and 5 and a half million
acres of farmland. To some, the water is as valuable as
oil. In 1922, the seven U.S. states through which the
river flows signed onto the Colorado River Compact, a
water-sharing agreement that divvies up the river’s annual
flow. The water must be shared equally between Upper Basin
states: Wyoming, Colorado, Utah and New Mexico; and the Lower
Basin: California, Arizona and Nevada. There’s been infighting
ever since.
The water level of Lake Mead, the country’s largest reservoir,
has dropped more than 130 feet since the beginning of 2000,
when the lake’s surface lapped at the spillway gates on Hoover
Dam. Twenty-one years later, with the Colorado River
consistently yielding less water as the climate has grown
warmer and drier, the reservoir near Las Vegas sits at just 39%
of capacity. … The river’s reservoirs are shrinking as
the Southwest endures an especially severe bout of dryness
within a two-decade drought intensified by climate
change, one of the driest periods in centuries that shows no
sign of letting up.
The Biden administration has launched a working group focused
on addressing drought conditions in the West as the region
continues to suffer from a long period of water scarcity. The
group, which will be co-chaired by the departments of the
Interior and Agriculture, will work with state, local and
tribal governments on community needs in weathering drought,
according to a news release from the Interior Department.
Visit key infrastructure and environmental restoration
sites along the lower Colorado River during our online
tour May 20 of the iconic river as it weaves through the
Lower Basin states of California, Nevada and Arizona. Our
Lower Colorado
River Tour starts at Hoover Dam near Las Vegas and
stops at major agricultural regions, tourist
destinations and key wildlife areas such as the Salton Sea
and a wildlife refuge in Yuma, Ariz. resulting from a
tribal-city partnership.
Just how bad is the drought in the Western US? The
shrinking of Lake Mead, the country’s largest reservoir, is a
troubling indicator. The massive man-made lake, which
straddles the border of Arizona and Nevada, is now only
at 39 percent of its full capacity, down from 44
percent in April 2020. That’s equivalent to a 10-foot drop
in the water level, according to the latest data from
the Bureau of Reclamation. Which means mandatory
restrictions on the amount of water surrounding states draw
from Lake Mead could be triggered in the next few months.
As drought conditions worsen across Northern California, the
Marin Municipal Water District is about to become the Bay
Area’s first major water agency to make the leap to mandatory
water restrictions. The utility is expected to adopt a plan
Tuesday that would require nearly 200,000 residents of southern
and central Marin County to limit outdoor watering to one day a
week as well as to stop washing their cars, refilling their
swimming pools and power-washing their homes, among other
things. Offenders could face fines of up to $250…
The release of last week’s Bureau of Reclamation 24-month study
felt like very bad news for the Colorado River (See Tony Davis
for details.). But a careful reading of the numbers, and an
understanding of the process through which they are developed,
suggests things are likely even worse than the top-line numbers
in the study. The problem: the assumptions underlying the study
do not fully capture the climate-change driven aridification of
the Colorado River Basin.
The Colorado River’s biggest reservoirs are likely to drop to
historically low levels later this year, prompting mandatory
conservation by some of the river’s heaviest users. The latest
Bureau of Reclamation reservoir projections, which take into
account river flows in a given year, show a likelihood that
Lake Mead on the Arizona-Nevada stateline will dip below the
critical threshold of 1,075 feet in elevation in May and remain
below that level for the foreseeable future. A first-ever
official shortage declaration from the Department of the
Interior is almost certain later this year.
No country is immune from water scarcity issues — not even the
world’s wealthiest country, the United States. The southwestern
states, in particular, have faced frequent and ongoing droughts
over the past two decades, and traditional water supplies are
failing. … Our existing water supplies must go
further, and the technology exists to make this happen — by
turning wastewater into drinking water.
The White House announced the intent to nominate several
officials to serve at the Department of the Interior, including
Tanya Trujillo as Assistant Secretary for Water and Science.
Trujillo is a water lawyer with more than 20 years of
experience working on complex natural resources management
issues and interstate and transboundary water agreements. She
most recently worked as a project director with the Colorado
River Sustainability Campaign. Before then, she served as the
Executive Director of the Colorado River Board of California.
The Colorado River is one of the most highly developed surface
water systems in the world, but demand for the river’s water
continues to exceed supply. University of Arizona geosciences
professor Connie Woodhouse discusses the impact of a warming
climate on the Colorado River. She is the featured speaker for
the annual College of Science lecture series April 15. Connie
Woodhouse spoke with Leslie Tolbert, Regent’s professor emerita
in Neuroscience at the University of Arizona.
Extreme drought conditions throughout the West are lowering
levels in the crucial water reservoir, Lake Mead. Scars of long
years of low precipitation are hard to go unnoticed at Lake
Mead, and the hot, dry summers have been felt for the last
several years in Arizona. 2020 was especially dry, with little
monsoon. Now, the West is in uncharted territory. Lake Mead is
projected to drop by several feet this year, from elevation
1,083 to about 1,068, according to officials with the Central
Arizona Project. The lake is hovering around 39 percent of its
full capacity.
The state is slipping further into more serious levels of
drought as it enters the second year for dry conditions and the
records the third driest rainy season on record. The US
Drought Monitor has downgraded areas in far Northern
California, the Central Coast, and Southern California to
reflect recent drought data. The top level “Exceptional”
(D4) drought remains at 5% in the Owens Valley and Mohave
Desert. Extreme (D3) drought now covers 35% of the state, an
increase from 32% last week. Most of the direct impacts
from various stages of more severe drought impact agriculture
and grazing areas. Many areas have only seen 50% of normal rain
or less. Areas that receive snow have seen well below average
snowpack levels.
Lack of monsoon rainfall last summer and spotty snowfall this
winter combined to worsen the Western drought dramatically in
the past year, and spring snowmelt won’t bring much relief.
Critical April 1 measurements of snow accumulations from
mountain ranges across the region show that most streams and
rivers will once again flow well below average levels this
year, stressing ecosystems and farms and depleting key
reservoirs that are already at dangerously low levels. As
the climate warms, it’s likely that drought conditions will
worsen and persist across much of the West. Dry spells between
downpours and blizzards are getting longer, and snowpack in the
mountains is starting to melt during winter, new research
shows.
Scientists have been predicting for years that the Colorado
River would continue to deplete due to global warming and
increased water demands, but according to new studies it’s
looking worse than they thought. That worries rancher Marsha
Daughenbaugh, 68, of Steamboat Springs, who relies on the water
from the Colorado River to grow feed for her cattle.
… Recent reports show that the river’s water flows were
down 20% in 2000 and by 2050 that number is estimated to more
than double.
Our two-day Water 101 Workshop begins on Earth Day,
when you can gain a deeper understanding of
California’s most precious natural resource. One of our
most popular events, the once-a-year workshop will be held as
an engaging online event on the afternoons of Thursday, April
22 and Friday, April 23. California’s water basics will be
covered by some of the state’s leading policy and legal
experts, including the history, geography, legal and political
facets of water in the state, as well a look at hot topics and
current issues of concern.
Unrelenting drought and years of rising temperatures due to
climate change are pushing the long-overallocated Colorado
River into new territory, setting the stage for the largest
mandatory water cutbacks to date. Lake Mead, the
biggest reservoir on the river, has declined
dramatically over the past two decades and now stands at just
40% of its full capacity. This summer, it’s projected to fall
to the lowest levels since it was filled in the 1930s following
the construction of Hoover Dam. The reservoir near Las
Vegas is approaching a threshold that is expected to
trigger a first-ever shortage declaration by the federal
government for next year, leading to substantial cuts in water
deliveries to Arizona, Nevada and Mexico.
State officials are putting farmers in south-central Arizona on
notice that the continuing drought means a “substantial cut” in
deliveries of Colorado River water is expected next year. A
joint statement issued Friday by the state Department of Water
Resources and the Central Arizona Project said an expected
shortage declaration “will result in a substantial cut to
Arizona’s share of the river, with reductions falling largely
to central Arizona agricultural users.” The Central Arizona
Project is an aqueduct system that delivers Colorado River
water to users in central Arizona and southern Arizona,
including farmers, cities and tribes.
Preliminary estimates from Utah’s Division of Water Rights show
that the Spanish Valley Watershed, which includes Moab, can
safely withdraw 50-100% more water than it currently uses each
year. The range of uncertainty in part has to do with the
difficulties that come with accounting for groundwater and in
part from the range of possibilities in how much climate change
affects water availability in the valley. State Engineer Teresa
Wilhelmsen praised research by the U.S. Geological Survey that
she said “provides a wealth of information on movement of water
between the various components of the aquifer system” in Moab.
The Fort Yuma-Quechan Indian Tribe is situated at a nexus in
the Colorado River Basin. That’s true in a geographic sense.
The tribe’s reservation overlays the Arizona-California border
near Yuma, Arizona. The two states are heavily reliant on water
from the Colorado River. The reservation also abuts the
U.S.-Mexico border where the river flows into Mexico for use in
cities and on farms. One of the river’s largest irrigation
projects, the All-American Canal, was dug through the tribe’s
land, and flows from the reservation’s northeastern boundary to
its far southwestern corner, on its way to irrigate crops in
California’s Imperial Valley. The confluence of the Colorado
River and one of its historically important tributaries, the
Gila River, is nearby.
Despite the recent history-making blizzard on Colorado’s Front
Range, statewide snowpack sits at 92 percent of average as of
March 19, down from 105 percent of average at the end of
February, according to the Natural Resources Conservation
Service. Just two river basins, the Arkansas and the Rio
Grande, are registering above average at 101 percent and 106
percent respectively. Among the driest are the Gunnison Basin,
at 86 percent of average, and the San Juan/Dolores, at 83
percent, both in the southwestern part of the state.
The past year has shown Arizonans how critical water is to all
we hold dear. It’s a pillar of public health, a precious and
finite resource, and the lifeblood of our economy and food
production. Water is essential for life, and climate
change is shrinking already scarce supplies. Fortunately, we
also know what we can do now to help safeguard our water.
As we build back better post-COVID-19, we cannot take water for
granted. Water security for all must become a foundational
principle in planning and policy making as Arizona builds more
resilient, healthy and equitable communities. -Written by Chris Kuzdas, freshwater program
manager and scientist with Environmental Defense Fund, and
Haley Paul, policy director for the National Audubon Society in
Arizona.
The Bureau of Reclamation is pleased to announce the selection
of Katrina Grantz as assistant regional director for its
Interior Region 7 — Upper Colorado Basin. Grantz, a 14-year
Reclamation veteran, began her assignment March 14. As
assistant regional director, she will oversee a range of water
and hydropower programs in Arizona, Colorado, New Mexico,
Texas, Utah and Wyoming.
A showdown is looming on the Colorado River. The river’s
existing management guidelines are set to expire in 2026. The
states that draw water from it are about to undertake a new
round of negotiations over the river’s future, while it’s
facing worsening dry conditions due in part to rising
temperatures. That means everyone with an interest in the
river’s future — tribes, environmentalists, developers,
business groups, recreation advocates — is hoping a new round
of talks will bring certainty to existing water supplies and
demands.
With nearly two-thirds of the United States abnormally dry or
worse, the government’s spring forecast offers little hope for
relief, especially in the West where a devastating megadrought
has taken root and worsened. Weather service and agriculture
officials warned of possible water use cutbacks in California
and the Southwest, increased wildfires, low levels in key
reservoirs such as Lake Mead and Lake Powell and damage to
wheat crops.
Grain by grain, sandbars are ecologically important to the
Colorado River system for humans and wildlife, say scientists.
How sand, silt and clay move along and become deposited within
the river corridor in the Grand Canyon National Park,
downstream from Glen Canyon Dam, has become an important
question to a number of government agencies as well as to
Native American tribes. The answer impacts the entire Colorado
River ecosystem and will help scientists better understand how
the Colorado River system works.
The water flow in the Grand Canyon is temporarily changing and
it could reveal some surprises, geologists said. The U.S.
Geological Survey said Sunday that an 11-day “spring
disturbance” flow will start Monday and will drop water levels
in parts of the Grand Canyon. … While dam maintenance
may not seem exciting, the drop in water could reveal parts of
the Colorado riverbed that hasn’t been seen in decades, USGS
said. It could also impact in the Colorado River
ecosystem. The change in water levels will also
mimic what the Colorado River was like before the dam was
built, USGS said.
Scientists and boatmen with the United States Geological Survey
are preparing for a busy week on the Colorado River as
engineers at Glen Canyon Dam prepare to reduce the water
flowing out of Lake Powell substantially. In order to conduct
maintenance on the concrete apron downstream of the dam,
engineers will be limiting the water that runs through the
dam’s turbines starting Monday and continuing through the rest
of the week.
Mark your calendars now for our virtual Lower Colorado
River Tour on May 20 to learn about the important role the
river’s water plays in the three Lower Basin states of Nevada,
Arizona and California, and how it helps to sustain their
cities, wildlife areas and farms. Registration is coming
soon! This virtual journey will cover a stretch of
the Colorado River from Hoover Dam and its reservoir Lake
Mead, the nation’s tallest concrete dam and largest reservoir
respectively, down to the U.S./Mexico border and up to the
Salton Sea.
As persistent drought and climate change threaten the Colorado
River, several states that rely on the water acknowledge they
likely won’t get what they were promised a century ago. But not
Utah. Republican lawmakers approved an entity that could push
for more of Utah’s share of water as seven Western states
prepare to negotiate how to sustain a river serving 40 million
people. Critics say the legislation, which the governor still
must sign, could strengthen Utah’s effort to complete a
billion-dollar pipeline from a dwindling reservoir that’s a key
indicator of the river’s health.
A recent report from Colorado River experts says it’s time for
radical new management strategies to safeguard the Southwest’s
water supplies. It’s meant to inform discussions on how to
renegotiate certain parts of the Law of the River that will
expire in 2026. KNAU’s Melissa Sevigny spoke about the report
with Jack Schmidt, director of the Center for Colorado River
Studies at Utah State University.
For the first time ever, rancher Jimmie Hughes saw all 15 of
the ponds he keeps for his cattle dry up at the same time this
year. Now, he and his co-workers are forced to haul tanks
of water two hours over dusty, mountain roads to water their
300 cows. … The Southwest is locked in drought again,
prompting cutbacks to farms and ranches and putting renewed
pressure on urban supplies. Extreme to exceptional drought is
afflicting between 57% and 90% of the land in Colorado, New
Mexico, Nevada, Utah and Arizona and is shriveling a snowpack
that supplies water to 40 million people from Denver to Los
Angeles, according to the U.S. Drought Monitor.
When [the Colorado River Compact was] signed in 1922,
the Colorado River drainage was divided into two divisions;
Upper: Colorado, Wyoming, New Mexico, Utah; Lower: Arizona,
California, Nevada. At that time, it was felt the total average
annual flow was 16.4 million acre feet. As a result, each basin
was assigned 50%, or 7.5 million acre feet, with the 1.4
million acre feet surplus allocated to Mexico. … As a
result, the Upper Basin is obligated to provide 7.5M acre feet
to the Lower Basin, regardless of the actual flow of water in
any given year. Obviously, snowpack and the consequent flow is
not a constant and years of drought and low flows create a
problem for the Upper Basin. -Written by Bryan Whiting, a columnist for the
Glenwood Springs (Colo.) Post Independent.
The [Utah] state Senate approved a bill Wednesday that would
establish the so-called Colorado River Authority of Utah, along
with a $9 million “legal defense fund,” intended to ensure that
the state receives its allotted share of the Colorado’s
dwindling flows….Utah has shared the Colorado River’s flow
with six Western states under a century-old agreement, but the
Beehive State has been slow to push its stake, according to
backers of HB297. Accordingly, Utah uses 54% of its share,
Senate President Stuart Adams, R-Layton, said…
Anyone who has hosted a good dinner party knows that the guest
list, table setting and topic of conversation play a big role
in determining whether the night is a hit or the guests leave
angry and unsatisfied. That concept is about to get a true test
on the Colorado River, where chairs are being pulled up to a
negotiating table to start a new round of talks that could
define how the river system adapts to a changing climate for
the next generation.
A majority of Colorado voters believe the state should spend
more money on protecting and conserving its water resources,
but they’re not willing to support new state taxes to fund the
work, according to a series of bipartisan polls conducted over
the past 18 months. … Though the polling also showed some
support for such potential tools as a new statewide tourism tax
or a bottle tax, that support eroded quickly when likely voters
were asked about a new statewide tax, with 39% of likely voters
saying they were skeptical the state could be trusted to spend
the money wisely…
On Feb. 22, 2021, Lake Powell was 127.24 feet below ‘Full Pool’
or, by content, about 38% full. Based on water level
elevations, these measurements do not account for years of
sediment (clay, silt, and sand) accumulation—the millions of
metric tons on the bottom. Geologist James L. Powell said, “The
Colorado delivers enough sediment to Lake Powell to fill 1,400
ship cargo containers each day.” In other words, Lake
Powell is shrinking toward the middle from top and bottom. The
lake is down over 30 feet from one year ago, and estimates
suggest it could drop another 50 feet by 2026. The Bureau of
Reclamation estimated the lifespan of Glen Canyon Dam at
500–700 years. Other estimates aren’t as optimistic, including
some as low as 50 years.
This month, the comment period for a potentially landmark piece
of legislation ended. Since California v. Arizona in 2000, the
Colorado River Indian Tribes have the sole rights to more than
600,000 acres-feet of water from the Colorado River, but they
are barred from selling or leasing any of this water to outside
communities. The proposed federal legislation, led by
the tribes themselves, would allow them to lease some of this
water as long as they reduce their own water consumption by an
equivalent amount.
-Written by Isaac Humrich, a senior at Sunnyslope High
School in Phoenix and a member of American Conservation
Coalition.
Federal regulators have issued a preliminary permit for a
pumped-hydropower project using water from Lake Powell, but
conservation groups say climate change could make the plan
unsustainable. The project would pump water from the lake,
drain it downhill to a generator, and send the power to massive
batteries for storage. The 2,200-megawatt project would supply
cities in Arizona, California and Nevada, over lines previously
used by the retired Navajo Generating Station. Gary Wockner,
executive director for Save the Colorado, which opposes the
plan, said falling water levels will make the Colorado River
Basin an unreliable source of water.
Arizona, California, and Nevada will need to cut their use of
Colorado River water by nearly 40 percent by 2050. A
study by researchers at Utah State University, which
the Arizona Daily Star reported this past Sunday, noted
that Colorado, New Mexico, Utah, and Wyoming—the Upper Basin
states—will have to reduce their usage, as well, though not by
as much as those pulling water from the Lower Basin.
From California’s perspective, the view upriver is not
encouraging. More than half of the upper part of the river
basin is in “exceptional drought,” according to the U.S.
Drought Monitor, while the Lower Basin is even worse off: More
than 60% of it is in the highest drought level. In January,
water levels in Lake Powell, the river’s second-largest
reservoir, dropped to unprecedented depths, triggering a
drought contingency plan for the first time for the Upper Basin
states of Colorado, Wyoming, Utah and New Mexico. Since
2000, the Colorado River Basin has seen a sustained period of
less water and hotter days. This is, as climate scientists like
to say, the “new normal.”
“Basic climate science reveals that Lake Powell is not a
reliable water source for this ill-conceived project.” The
reference to ‘basic climate science’ refers to recent computer
models that show a drier climate throughout the American
Southwest over the next few decades, allegedly due to the
continued use of fossil fuels all around the globe. But even
without access to clever computer models, we have all seen Lake
Powell and Lake Mead — America’s two largest water reservoirs —
struggle to remain even half full, as we watch water users
extract more water than nature can replace.
Less water for the Central Arizona Project — but not zero
water. Even more competition between farms and cities for
dwindling Colorado River supplies than there is now. More
urgency to cut water use rather than wait for seven river basin
states to approve new guidelines in 2025 for operating the
river’s reservoirs. That’s where Arizona and the Southwest are
heading with water, say experts and environmental advocates
following publication of a dire new academic study on the
Colorado River’s future. The study warned that the river’s
Upper and Lower basin states must sustain severe cuts in river
water use to keep its reservoir system from collapsing due to
lack of water. That’s due to continued warming weather and
other symptoms of human-caused climate change, the study said.
Utah lawmakers say drought and the dwindling Colorado River
make it more important than ever for the state to act now to
safeguard its interest in the river.
In the five years since Colorado’s Water Plan took effect, the
state has awarded nearly $500 million in loans and grants for
water projects, cities have enacted strict drought plans,
communities have written nearly two dozen locally based stream
restoration plans, and crews have been hard at work improving
irrigation systems and upgrading wastewater treatment plants.
But big challenges lie ahead — drought, population growth,
accelerating climate change, budget cuts, wildfires and
competing demands for water, among others.
In the five years since Colorado’s Water Plan took effect, the
state has awarded nearly $500 million in loans and grants for
water projects, cities have enacted strict drought plans,
communities have written nearly two dozen locally based
stream-restoration plans and crews have been hard at work on
improving irrigation systems and wastewater treatment plants.
But there are big challenges ahead — drought, population
growth, accelerating climate change, budget cuts, wildfires and
competing demands for water, among others.
The Colorado River supports over 40 million people spread
across seven southwestern states, 29 tribal nations, and
Mexico. It’s responsible for the irrigation of roughly 5.5
million acres of land marked for agricultural use. Local and
regional headlines show the river is in crisis. The nation
mostly isn’t listening.
In the gloomiest long-term forecast yet for the
drought-stricken Colorado River, a new study warns that lower
river basin states including Arizona may have to slash their
take from the river up to 40% by the 2050s to keep reservoirs
from falling too low. Such a cut would amount to about twice as
much as the three Lower Basin states — Arizona, California and
Nevada — agreed to absorb under the drought contingency plan
they approved in early 2019. Overall, the study warned that
managing the river sustainably will require substantially
larger cuts in use by Lower Basin states than currently
envisioned, along with curbs on future diversions by Upper
Basin states.
Much has been said about a “new normal” in the Colorado River
Basin. The phrase describes reduced flows in the 21st century
as compared to those during much of the 20th century. Authors
of a new study contemplate something beyond, what they call a
“new abnormal.” The future, they say, might be far dryer than
water managers have been planning for. … In the 133-page
report, they identified a wide variety of alternative
management ideas, not simple tweaks but “significant
modifications or entirely new approaches.”
Utah legislative leaders on Thursday unveiled plans for a new
$9 million state agency to advance Utah’s claims to the
Colorado River in hopes of wrangling more of the river’s
diminishing flows, potentially at the expense of six
neighboring states that also tap the river. Without any prior
public involvement or notice, lawmakers assembled legislation
to create a six-member entity called the Colorado River
Authority of Utah, charged with implementing “a management plan
to ensure that Utah can protect and develop the Colorado River
system.”
For years, Southern Nevadans have watched the water level in
Lake Mead inch downward and wondered how long we could avoid
the federally mandated rationing that kicks in when the lake
elevation hits certain thresholds. Now comes a forecast bearing
worrisome news. For the second time since 2019, we may be in
for a reduction. A study issued last month by the Bureau of
Reclamation says the lake level could dip below 1,075 feet by
the end of the year.
Experts agree the amount of water in the Colorado River basin
has declined because of drought and climate change, and that
population growth is fueling demand for water higher and
higher. One result is the level of Lake Powell in Arizona,
behind Glen Canyon Dam, has steadily declined and is now at 43%
of capacity. Further, just last week, the U.S. Dept of Interior
sounded an alarm that they may have to start draining other
reservoirs in Colorado, New Mexico, and Wyoming to try and
“save” Lake Powell. -Written by Daniel P. Beard, former commissioner of the
U.S. Bureau of Reclamation, and Gary Wockner, director of Save
The Colorado.
Dry conditions are the worst they’ve been in almost 20 years
across the Colorado River watershed, which acts as the drinking
and irrigation water supply for 40 million people in the
American Southwest. As the latest round of federal
forecasts for the river’s flow shows, it’s plausible, maybe
even likely, that the situation could get much worse this year.
Understanding and explaining the depth of the dryness is up to
climate scientists throughout the basin. We called several of
them and asked for discrete numbers that capture the current
state of the Colorado River basin.
Water suppliers along the drought-stricken Colorado River hope
to tackle another tricky issue after the U.S. Bureau of
Reclamation installs a new leader: salty water. The river
provides water for 40 million people from Colorado to
California, and helps irrigate 5.5 million acres of farm and
ranchland in the U.S. But all that water also comes with 9
million tons of salt that flow through the system as it heads
to Mexico, both due to natural occurrence and runoff, mostly
from agriculture. Salt can hurt crop production, corrode
drinking water pipes, and cause other damage.
The calls came in shortly after the story in The New York Times
announced Wall Street was on the prowl for “billions in the
Colorado’s water.” … The national story raised hackles
across Colorado. It defined agriculture as a “wrong” use of
Colorado River water and detailed a growing swarm of investors
eager to inject Wall Street’s strategies into the West’s
century-old water laws. The idea of private investment in
public water has galvanized the state’s factious water
guardians.
The dry 2020 and the lack of snow this season has water
managers in seven states preparing for the first time for
cutbacks outlined in drought contingency plans drafted two
years ago. A sobering forecast released this week by the
Bureau of Reclamation shows the federally owned Lake Mead and
Lake Powell — the nation’s two largest reservoirs and critical
storage for Colorado River water and its 40 million users —
dipping near-record-low levels.
Increasingly bleak forecasts for the Colorado River have for
the first time put into action elements of the 2019 upper basin
drought contingency plan. The 24-month study released in
January by the Bureau of Reclamation, which projects two years
of operations at the river’s biggest reservoirs, showed Lake
Powell possibly dipping below an elevation of 3,525 feet above
sea level in 2022. That elevation was designated as a critical
threshold in the agreement to preserve the ability to produce
hydropower at Glen Canyon Dam.
Kevin Kelley, the elegant, whip-smart and fierce former general
manager of the Imperial Irrigation District, who fought to
preserve the Salton Sea and his rural county’s water
rights, died Tuesday at 61. He passed away at home, said his
brother, Ryan Kelley, an Imperial County Supervisor. The cause
of death is still being determined. As top executive from
2011 to January 2019 of the powerful but often
overlooked IID, Kelley regularly took on state, federal
and urban water officials to remind them of the valley’s
importance.
Colorado is headwaters to a hardworking river that provides for
40 million people. The importance of the Colorado River to the
state and the nation cannot be overstated, and its recent
hydrology serves as a reminder that we must continue to find
workable solutions that will sustain the river. History shows
that we are up to the challenge. … Colorado and the other
Basin states face big challenges. Drier hydrology, competing
demands on the river, and those who seek to profit from such
circumstances, impact the types of tools available to address
these challenges. Written by Rebecca Mitchell, who serves as the state of
Colorado’s Colorado River Commissioner as well as director of
the Colorado Water Conservation Board.
Colorado is headwaters to a hardworking river that provides for
40 million people. The importance of the Colorado River to the
state and the nation cannot be overstated, and its recent
hydrology serves as a reminder that we must continue to find
workable solutions that will sustain the river. History shows
that we are up to the challenge. As Colorado’s commissioner and
lead negotiator on Colorado River issues, it is my job to
protect Colorado’s interests in the river. -Written by Rebecca Mitchell, Colorado’s current Colorado
River Commissioner and director of the Colorado Water
Conservation Board.
If there’s a dominant force in the Colorado River Basin these
days, it’s the Walton Family Foundation, flush with close to $5
billion to give away. Run by the heirs of Walmart founder Sam
Walton, the foundation donates $25 million a year to nonprofits
concerned about the Colorado River. It’s clear the foundation
cares deeply about the river in this time of excruciating
drought, and some of its money goes to river restoration or
more efficient irrigation. Yet its main interest is promoting
“demand management,” the water marketing scheme that seeks to
add 500,000 acre-feet of water to declining Lake Powell by
paying rural farmers to temporarily stop irrigating.
Colorado is no stranger to drought. The current one is closing
in on 20 years, and a rainy or snowy season here and there
won’t change the trajectory. This is what climate change has
brought. “Aridification” is what Bradley Udall formally calls
the situation in the western U.S. But perhaps more accurately,
he calls it hot drought – heat-induced lack of water due to
climate change.
The ability of science to improve water management decisions
and keep up with the accelerating pace of climate change. The
impact to precious water resources from persistent drought
in the Colorado River Basin. Building resilience and
sustainability across California. And finding hope at the
Salton Sea. These were among the issues Western Water explored
in 2020. In case you missed them, they are still worth taking a
look at.
A set of guidelines for managing the Colorado River helped
several states through a dry spell, but it’s not enough to keep
key reservoirs in the American West from plummeting amid
persistent drought and climate change, according to a U.S.
report released Friday.
Sixty years after its creation, Lake Powell faces an uncertain
future due to increasing drought and decreased water
runoff. Science Moab spoke with Utah State professor Jack
Schmidt and Eric Kuhn, former general manager for the
Colorado River District, about the policies and politics
of Colorado River reservoirs, including the role of Lake Powell
and its future in the face of changing climate and politics.
Climate change and overuse are causing one of the Colorado
River’s biggest reservoirs, Lake Powell, to drop. While water
managers worry about scarcity issues, two Utah river rafters
are documenting the changes that come as the massive reservoir
hits historic low points.
It was daybreak and Barron Tsinigine had been fishing for
rainbow trout, until he found out he could earn $25 for landing
a brown trout. That’s when his plan changed. … Tsinigine was
one of the first anglers to participate in Arizona’s
incentivized harvest of brown trout … in hopes of keeping the
predacious trout from moving downstream and endangering native
fish, like the humpback chub.
Twenty years ago, the Colorado River’s hydrology began tumbling
into a historically bad stretch. … So key players across
seven states, including California, came together in 2005 to
attack the problem. The result was a set of Interim Guidelines
adopted in 2007… Stressing flexibility instead of rigidity,
the guidelines stabilized water deliveries in a
drought-stressed system and prevented a dreaded shortage
declaration by the federal government that would have forced
water supply cuts.
Twenty years ago, the Colorado River
Basin’s hydrology began tumbling into a historically bad stretch.
The weather turned persistently dry. Water levels in the system’s
anchor reservoirs of Lake Powell and Lake Mead plummeted. A river
system relied upon by nearly 40 million people, farms and
ecosystems across the West was in trouble. And there was no guide
on how to respond.
The incoming Biden administration will lead efforts to craft a
new water-management regime for the seven-state Colorado River
Basin, and people involved in the process expect any changes to
reflect the impact of climate change in the basin.
The lower Colorado River Basin, which is primarily in Arizona,
is projected to have as much as sixteen percent less
groundwater infiltration by midcentury compared to the
historical record. That’s because warming temperatures will
increase evaporation while rain- and snowfall are expected to
remain the same or decrease slightly.
The U.S. Geological Survey is in the beginning stages of
learning more about this river via an expanded and more
sophisticated monitoring system that aims to study details
about the snowpack that feeds the river basin, droughts and
flooding, and how streamflow supports groundwater, or vice
versa.
Proposals to divert water in New Mexico, Nevada and Utah have
run up against significant legal, financial and political
roadblocks this year. But while environmental groups have
cheered the setbacks, it’s still unclear whether these projects
have truly hit dead ends or are simply waiting in the wings.
There’s a concept called “demand management” in the news in
Colorado, and here’s a simple definition: Landowners get paid
to temporarily stop irrigating, and that water gets sent
downstream to hang out in Lake Powell. It’s an idea long talked
about because of increasing drought and the very real danger of
both Lake Mead and Lake Powell dropping into “dead pool” where
no hydropower can be generated.
Managing water resources in the Colorado River Basin is not for
the timid or those unaccustomed to big challenges. … For more
than 30 years, Terry Fulp, director of the Bureau of
Reclamation’s Lower Colorado Basin Region, has been in the
thick of it, applying his knowledge, expertise and calm
demeanor to inform and broker key decisions that have helped
stabilize the Southwest’s major water artery.
A 2007 deal creating guidelines governing how Lake Powell and
Lake Mead are operated in coordination isn’t scheduled to
expire until 2026. But water officials in Colorado River Basin
states are already beginning to talk about the renegotiations
that will be undertaken to decide what succeeds the 2007
criteria.
Managing water resources in the Colorado River Basin is not for the timid or those unaccustomed to big challenges. Careers are devoted to responding to all the demands put upon the river: water supply, hydropower, recreation and environmental protection.
All of this while the Basin endures a seemingly endless drought and forecasts of increasing dryness in the future.
As the Colorado River Basin’s managers wrestle with thorny
questions around the proposed Lake Powell Pipeline, a colleague
who works for a Lower Colorado River Basin water agency
recently asked a question that goes to the heart of the future
of river management: With land in the Lower Colorado River
Basin, why doesn’t Utah have a Lower Basin allocation?
Despite that reduction in flow, total storage behind Glen
Canyon and Hoover dams has dropped only 2.6 million acre feet.
That is far less than you’d expect from 12 years of 1.2 maf per
year flow reductions alone. That kind of a flow reduction
should have been enough to nearly empty the reservoirs. Why
hasn’t that happened? Because we also have been using less
water.
The recent downgrade in the forecast for the flow of water in
the Colorado River should be a death punch to the proposal to
build a new pipeline out of Lake Powell. The pipeline was
already a major threat to Las Vegas and much of the rest of the
Southwest; now the threat risk is heading off the charts.
