The Mexican Water Treaty of 1944 committed the U.S. to deliver
1.5 million acre-feet of water to Mexico on an annual basis, plus
an additional 200,000 acre-feet under surplus conditions. The
treaty is overseen by the International Boundary and Water
Commission.
Colorado River water is delivered to Mexico at Morelos Dam,
located 1.1 miles downstream from where the California-Baja
California land boundary intersects the river. The river’s
natural terminus is the Gulf of California in Mexico, but because
of the dams and diversion facilities throughout the Colorado
River Basin, natural flow rarely reaches the Gulf. Water diverted
at Morelos Dam is primarily used to irrigate Mexicali Valley
farmland, and also supplies the cities of Mexicali, Tecate and
Tijuana.
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.
Las Vegas visitors can still snap selfies with the mermaids
swimming among tropical fish in the Silverton Casino’s massive
aquarium and gaze at the colorful dancing water displays of the
iconic Bellagio fountains — for now. But southern Nevada and
much of the American West are struggling to cope with a
worsening drought that has strained municipal water supplies,
agricultural operations and wildlife populations.
Water management in the western United States is rooted in an
adversarial system that is highly sensitive to climate change.
Reforms are needed to ensure water management is efficient,
resilient and equitable moving forward.
-Written by Dylan R. Hedden-Nicely, Associate Professor of
Law and Director, Native American Law Program, University of
Idaho College of Law.
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.
With drought sucking the Western US dry, Google announced new
plans to protect vital water resources. Google guzzles up water
to cool its data centers, three of which are in the
drought-stricken West. To offset its thirst, the company said
that by 2030, it wants to replenish 120 percent of the water it
consumes. … The company has
faced pushback from communities near its data center
in South Carolina and a new one to be built
in Arizona.
For the past two decades, the southwestern United States has
been desiccated by one of the most severe long-term droughts—or
‘megadroughts’—of the last 1,200 years. And now, scientists say
the risk of similar extreme megadroughts and severe single-year
droughts will increase in the future as Earth’s temperature
continues to rise, according to a new study in Earth’s Future
sponsored by CPO’s Modeling, Analysis, Predictions, and
Projections (MAPP) program and led by NASA’s Goddard
Institute for Space Studies (GISS).
Both the Rio Grande and Colorado rivers shrunk in 2021, another
bad water year in a two-decade megadrought brought on by a
warming Western United States. Demands on the rivers —
from growing cities, agriculture, wildlife and international
treaties — are hitting the reality of a reduced supply of water
in both rivers. In August, federal officials declared the
first-ever shortage on the Colorado River lower basin,
triggering a plan to reduce water usage in several states and
Mexico.
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.
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.
La Niña, the climate event that causes water to be colder than
normal in the eastern Pacific, has now been shown by new
research released Monday to be responsible for simultaneous
megadroughts in the North and South American Southwest over the
past 1,000 years. Megadroughts are extended periods of
drought that last at least 20 years. In a study published in
the journal Nature, researchers found that these megadroughts
occurred simultaneously in the North American and South
American Southwest “regularly” and often during a La Niña
event.
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.
Water is flowing once again to the Colorado River’s delta
in Mexico, a vast region that was once a natural splendor
before the iconic Western river was dammed and diverted at the
turn of the last century, essentially turning the delta into a
desert. In 2012, the idea emerged that water could be
intentionally sent down the river to inundate the delta
floodplain and regenerate native cottonwood and willow trees,
even in an overallocated river system. Ultimately, dedicated
flows of river water were brokered under cooperative efforts by
the U.S. and Mexican governments.
Water is flowing once again
to the Colorado River’s delta in Mexico, a vast region that
was once a natural splendor before the iconic Western river was
dammed and diverted at the turn of the last century, essentially
turning the delta into a desert.
In 2012, the idea emerged that water could be intentionally sent
down the river to inundate the delta floodplain and regenerate
native cottonwood and willow trees, even in an overallocated
river system. Ultimately, dedicated flows of river water were
brokered under cooperative
efforts by the U.S. and Mexican governments.
On Aug. 16, the U.S. federal government declared a Colorado
River water shortage for the first time. This unprecedented
action was triggered by the precipitous drop in Lake Mead’s
water level: It’s at 1,067 feet above sea level, or about 35
percent full. …. The economic impacts to the states that tap
water from the Colorado River are significant, with no relief
in sight.
In late spring, Antonia Torres González’ tears rolled freely at
the rare sight before her: the Colorado River flowed again in
what is usually a parched delta. Torres González, a member of
the Cucapá tribe who grew up in the river delta, couldn’t help
but relive memories of childhood romps in the once-lush
waterway in northwestern Mexico. … On May 1, 2021, the river
once again flowed in its delta thanks to an agreement between
the United States and Mexico dubbed Minute 323.
In 2020 the U.S. government through the Environmental
Protection Agency (EPA) committed $300 million in The United
States Mexico Canada Agreement (USMCA) trade agreement to
identify infrastructure solutions to mitigate the transboundary
pollution. Infrastructure solutions for transboundary flows
from the Tijuana River have been studied for the past year. The
Environmental Protection Agency, which has been tasked with
creating solutions, originally proposed 10 possible
projects.
It’s been a wet monsoon season. Sky Harbor has seen 3.35
inches of rain so far, which far surpasses the 2020
“non-soon.” So is the long drought in the Southwest
over? Not by a long shot, experts say.
The Colorado River Basin covers more than 246,000 square miles
in seven U.S. states (Wyoming, Colorado, Utah, New Mexico,
Arizona, Nevada, and California) and Mexico. Pursuant to
federal law, the Bureau of Reclamation (part of the Department
of the Interior) manages much of the basin’s water supplies.
Colorado River water is used primarily for agricultural
irrigation and municipal and industrial (M&I) uses; it is
also important for hydropower production, fish and wildlife,
and recreational uses.
U.S. Environmental Protection Agency Administrator Michael
Regan got a first-hand look Friday at the Tijuana River Valley,
where hundreds of millions of gallons of water laced with raw
sewage, trash and industrial chemicals regularly foul San Diego
shorelines, shuttering beaches as far north as Coronado.
Prickly pear cactuses used by Indigenous peoples to make the
popular Mexican and Southwestern nopales are shriveling in an
increasingly hot and dry southern Sonoran Desert.
Ancestral lands along the California coast may soon be
underwater, rendering them worthless to many Native peoples,
including the Salinan, Chumash, Tongva and Ajechemem, even
as other lands burn in ever-larger wildfires. Some salmon
species teeter on the brink of extinction due to drought and
diverted water, while elsewhere, people and homes are
swept away on a brown tsunami-like wave of floodwaters.
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?
In North America, the countries that share the Colorado River
Delta are experiencing a similar reality as their own
diplomatic relationship is shaped by cross-border water
exchanges. And like Israel and Jordan, the U.S. and Mexico are
now considering the role desalination might play in sharing
this vital resource. … Establishing a desalination
facility jointly operated by the U.S. and Mexico could help
“bolster resilience in the Colorado River Basin,” according to
the Binational Study of Water Desalination Opportunities
in the Sea of Cortez.
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.
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.
In the American West, water has always been a challenge. Prior
to the arrival of European explorers and settlers, there’s
broad evidence that droughts and water cycles heavily affected
Native Americans. For example, the people who built the Gila
Cliff Dwellings may have left the area when water supplies
dwindled. Later settlements by the descendants of Europeans
also followed water, with settlements placed near rivers so
there would be something to drink and grow food with.
Just as the National Weather Service predicts no relief in
sight, neither do population analysts foresee a reduction of
the numbers of new arrivals that will drink, cook with, bathe
in, irrigate or flush with the increasingly scarce water
normally available for everyday activities. … Whether
California residents heed Newsom or whether visitors pay
attention to their lodgings’ pleas to consume less water is
beyond anyone’s control. But controlling the millions of future
water consumers pouring across the Southwest border is well
within the federal government’s power. -Written by Joe Guzzardi, an analyst with
Progressives for Immigration Reform.
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.
Federal officials are getting closer to identifying how they
plan to control persistent cross-border sewage flows which
routinely foul the San Diego ocean. They talked publicly on
Friday about ongoing efforts to fix a persistent problem,
sewage coming from Tijuana which fouls a sensitive estuary in
the United States and also contaminates the ocean.
Across the U.S. West, shifting climate patterns are wreaking
havoc. An early start to fire season is scorching rural Oregon
and parts of Northern California. Record temperatures have led
to deaths of hundreds of residents of Seattle and Portland,
Ore. Lake Mead, the massive Colorado River reservoir outside
Las Vegas, is at its lowest point since its 1935 federal
construction, threatening water supplies to Arizona, Southern
California, Nevada and Mexico. In Arizona, 99% of the land
is undergoing years-long drought that has accelerated. Large
swaths of the region are now in extreme distress and the
picture may well get worse…
Seven years ago, a pulse of water on the Colorado River at the
U.S.-Mexico border temporarily reconnected it to the Pacific
Ocean. Scientists used the so-called “pulse flow” to study what
plant and animal life returned to the desiccated delta along
with water. Armed with that knowledge, scientists and
conservation groups are trying a new and more targeted strategy
to bring water back to the final 100 miles of the Colorado
River this year. It’s an attempt to reconnect portions of the
river left dry from decades of overuse, and it’s happening in
one of the driest years the basin has ever seen.
Rain fell on San Diego Monday. It wasn’t a lot of rain – an
Accuweather forecast called for “a brief morning shower or two”
with an anticipated rainfall of 0.01 inches. But it was enough
to prompt a beach closure at the Tijuana Slough, just south of
Imperial Beach. That section of the beach is closed whenever
the Tijuana River is flowing. Cross-border sewage spills have
been an issue in South County for decades.
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.
When the current drought began in 2000, the three Lower Basin
states that take water from the lake (Arizona, California
and Nevada) suddenly awakened to the problem. After several
years of difficult negotiations, they agreed on a Drought
Contingency Plan (DCP) that, with previously agreed cuts,
would bring the lake into balance. Hoping the drought
would lift before too long, the DCP negotiators agreed to
spread the cuts over coming years in response to changing lake
levels. However, as the drought continues and intensifies, the
Drought Contingency Plan is looking more like a Drought
Certainty Plan. -Written by former Secretary of the Interior Bruce
Babbitt.
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.
The Bureau of Reclamation announced the selection
of Michael Norris as the Area Manager of its Lower
Colorado Basin Region Yuma Area Office. He has served as the
Deputy Area Manager for seven years. In his new capacity,
Norris is responsible for delivery of Colorado River water to
the Yuma area and Mexico, groundwater and salinity management,
resource management, engineering and construction.
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.
Through her new documentary, “Where There Once Was Water,”
Brittany App introduces innovative ways to conserve water,
restore ecosystems, and reconsider our relationship with the
natural world. The film follows her venturing through
California and the Southwest in search of people practicing
wise water management.
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.
The growing crisis on the Colorado River came into sharper
focus last week when the Bureau of Reclamation began emergency
releases from Flaming Gorge Reservoir to shore up
Lake Powell’s declining levels, now at historic lows. The
move will bolster Powell’s level by 3 feet in hopes of
preventing it from dropping to a point where Glen Canyon Dam
would not be able to generate electrical power, according to
the agency’s Upper Colorado regional director Wayne Pullan.
The American West was once seen as a place of endless
possibilities: grand vistas, bountiful resources and cities
that somehow grew out of deserts. Now, manifest destiny has
become a manifest emergency. A scorching drought made worse by
climate change is draining reservoirs at an alarming pace,
fueling massive wildfires and deadly heat waves and withering
one of the most important agricultural economies in the
country.
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 punishing heat wave continues in much of the West. However,
for some in places in the Southwest including Arizona, the
long-awaited monsoon will bring milder temperatures and
rainfall. It may just arrive a little bit too fast, raising
flash flooding concerns in the area. … Rainfall amounts of
anywhere from a half inch to 1 inch are possible, said the
National Weather Service in Phoenix. Upper-end amounts of 2 to
4 inches aren’t out of the question.
As concerns flare over record-low water levels at Lake Mead, a
new UNLV study shows that COVID-19 pandemic stay-at-home orders
— and a subsequent societal shift to remote work — may be
exacerbating the problem. The study, recently published in the
Journal of Environmental Economics and Management, found that
Las Vegas Valley residential water use soared during the
pandemic, outpacing even combined pre-pandemic usage across
Southern Nevada’s three main property types (residential,
commercial, and schools).
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.
[S]ince 2000, scientists say the river’s flow has dwindled
by 20% compared to the previous century’s average. This year is
the second driest on record, with the flow into Lake Mead just
a quarter of what would be considered normal. … In June,
the level of Lake Mead plunged below 1,075ft, a point that will
trigger, for the first time, federally mandated cuts in water
allocations next year. The Bureau of Reclamation expects this
historic low to spiral further …
For the past few weeks, the American West has been confronting
a hellish climate nightmare of scorching heat waves, a severe
drought, and raging wildfires. And it’s not just the
West—or even the United States. In
typically chilly Siberia, ground temperatures reached
a blistering 118 degrees Fahrenheit. The Middle
East has been gripped by a searing heat wave and a drought
that has especially hammered Syria. In late June, a
small Canadian village was almost completely consumed
by wildfire. China is also bracing for another year
of extreme weather…
[A]fter years of an unrelenting drought that has quickly
accelerated amid record temperatures and lower snowpack melt,
[Lake Mead] is set to mark another, more dire turning
point. Next month, the federal government expects to declare
its first-ever shortage on the lake, triggering cuts
to water delivered to Arizona, Nevada and Mexico on Jan.
1. If the lake, currently at 1,068 feet, drops 28 more
feet by next year, the spigot of water to California will start
to tighten in 2023.
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.
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.
Skiers and snowboarders pray for snow so they can shred the
slopes. Climatologists and hydrologists have an entirely
different and more critical reason to cross their fingers for
the “white gold.” The West’s historic drought has many impacts,
including water shortages, more severe wildfire seasons and
unprecedented heat waves, to name a few. Intense droughts are a
result of many factors, one of which scientists have recently
begun to analyze with more scrutiny: snow drought.
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.
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.
Drought may be the sneakiest of natural disasters. Although
human history teems with people engulfed by abrupt aridity —
the Akkadians of four millenniums ago, the Maya in the ninth
and 10th centuries A.D., the Great Plains farmers of the 1930s
— even today drought is a poorly appreciated phenomenon. …
The American West is once again facing drought, one of the
worst on record. Across a vast region encompassing nine states
and home to nearly 60 million people, the earth is being wrung
dry. -Written by Farhad Manjoo, NY Times opinion columnist.
It might be tempting to shrug at the scorching weather across
large swaths of the West. This just in: It gets hot in the
summer. But this record-setting heat wave’s remarkable power,
size and unusually early appearance is giving meteorologists
and climate experts yet more cause for concern about the
routinization of extreme weather in an era of climate change.
These sprawling, persistent high-pressure zones popularly
called “heat domes” are relatively common in later summer
months. This current system is different.
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.
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.
A heat dome is baking Arizona and Nevada, … At Lake Mead,
which supplies water for 25 million people in three
southwestern states and Mexico, water levels have plunged to
their lowest point since the reservoir was filled in the 1930s.
In California, farmers are abandoning their thirstiest crops to
save others, and communities are debating whether to ration tap
water….And it’s not even summer yet.
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.
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.
Managers of some Arizona golf courses are fighting a plan that
would cut water use at a time when the state is being
forced to confront shrinking water supplies. A group
representing golf courses has been pushing back against a
proposal by state officials that would reduce overall
water use on courses, instead offering a plan that would entail
less conservation. Opposition to the state’s proposal for
golf courses has emerged over the past several months, aired in
sometimes-tense virtual meetings …
With a worsening drought gripping the West and wildfire season
looming, California is bracing for the most severe heat wave of
the year — one that promises to tax the state’s power supplies
while also offering a grim preview of challenging months to
come. The heat wave will bring triple-digit temperatures to the
valleys and inland regions of Southern California as well as
many parts of the rest of the state, heightening fire risks. It
comes as parts of Northern and Central California are turning
to water restrictions as the drought rapidly alters the
landscape.
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.
Coachella Valley-based architect Nikola Lakic knows how to fix
the withering Salton Sea. Or, at least he says he does.
Lakic believes it’s possible to import water from Mexico’s Sea
of Cortez — or, perhaps, from the Pacific Ocean off the
California coast — through a multi-billion-dollar system of
pipes. He would construct mangrove habitat for natural water
filtration, send desalinated water to geothermal plants and,
amid all this, restore California’s largest lake.
… Lakic is the author of one of 11 formal proposals for
a “sea-to-sea” solution that the state of California is
currently evaluating.
Lake Mead has declined to its lowest level since the reservoir
was filled in the 1930s following the construction of Hoover
Dam, marking a new milestone for the water-starved Colorado
River in a downward spiral that shows no sign of letting up.
The reservoir near Las Vegas holds water for cities, farms and
tribal lands in Arizona, Nevada, California and Mexico. Years
of unrelenting drought and temperatures pushed higher by
climate change are shrinking the flow into the lake,
contributing to the large mismatch between the demands for
water and the Colorado’s diminishing supply.
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.
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.
Drought is taking a dramatic toll on the Colorado River
system that provides water to 40 million people in seven states
– and may force the federal government to make a drastic and
historic decision. For more than eight decades, the
iconic 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.
The ocean shoreline at Tijuana Slough National Wildlife Refuge
and Border Field State Park was closed Saturday due to
contaminated sewage water that may be moving north into the
U.S., county water authorities said. The San Diego County
Department of Environmental Health and Quality issued the
contact closure for the ocean shoreline Saturday. Ocean water
samples exceeded state health standards, DEHQ officials said.
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.
Nearly half of the country — from the Pacific coast to the
Great Plains and upper Midwest — is experiencing moderate to
exceptional drought conditions. That’s expected to get worse
throughout the summer. … UCLA climatologist Park Williams:
“This drought is far from over. 2021 is shaping up to
potentially be the driest of all of the drought years in the
last century, and definitely one of the driest of the last
millennium.”
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.
Every time I write about water, I get a similar email from
different folks. It argues that if we can build pipelines to
move oil, we should be able to capture and pipe enough
floodwater from the Mississippi, the Missouri, the Snake or
(insert your river here) to resolve shortages on the Colorado
River. I appreciate the big thinking. But I wish we could move
past this idea. Because we’ve studied this before, in multiple
iterations. Each solution has been projected to cost multiple
billions of dollars. Most would not produce enough water to fix
our problems. And trust me, someone’s going to fight several
hundred miles of pipe being laid across their land to make this
happen. -Written by Joanna Allhands, an Arizona Republic
columnist.
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.
A crippling drought — largely connected to climate change — is
gripping the Western United States, affecting over 70 million
people and around 40% of the U.S. … Farmers,
scientists, tribal officials, foresters and other groups
affected by the worsening drought testified at a House Natural
Resources Subcommittee on Water, Oceans and Wildlife hearing on
Tuesday, asking lawmakers for both short-term relief and
long-term solutions from the worsening conditions.
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 Tuesday. The period
from last April to this March was the driest in the last 126
years for Arizona and other Western states, witnesses said. It
caps 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.
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.
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.
[I]n a new study, UCLA researchers found that nitrogen in
treated sewage is driving a massive growth of oceanic algae and
loss of oxygen, which will likely have lasting effects on the
region’s ecosystem. From 1997 to 2000, for example, the growth
of microscopic marine algae called phytoplankton was 79% higher
than it would have been without nitrogen from human sewage in
the waters along the coast from the Baja California Peninsula
to Santa Barbara. The problem occurs in large part because
freshwater from sewage is less dense than the seawater it’s
injected into, which causes the wastewater to rises to the
surface, where phytoplankton live.
A federal appeals court has rebuked the U.S. government for
failing to properly consider the interest of Native American
nations in developing allocation guidelines for the Colorado
River Basin’s waters and ordered it to prioritize obligations
assumed when it signed a treaty with the Navajo Nation in 1868.
The April 28 ruling by the 9th U.S. Circuit Court of Appeals
may boost Native American negotiating clout as the basin’s
states ponder how to address impacts of ongoing drought in the
region.
The Colorado River is flowing again in its delta. This is a big
deal for a river that has not flowed through its delta in most
years since the 1960s, resulting in an ecosystem that is
severely desiccated and devastated. Thanks to commitments from
the United States and Mexico in the Colorado River binational
agreement—Minute 323 – 35,000 acre-feet of water (11.4
billion gallons) dedicated to create environmental benefits
will be delivered to the river from May 1 to October 11. The
expectation is that this will create and support habitat for
birds like the Yellow-billed Cuckoo, Yuma Ridgway’s Rail, and
Vermilion Flycatcher, and give life to the many plants and
animals in this ribbon oasis of green in the midst of the
Sonoran Desert.
The National Oceanic and Atmospheric Administration announced
on Thursday that a key weather feature that affects global
temperature and precipitation has shifted into a “neutral,” or
average, state. La Niña, one of the factors behind last year’s
extremely active Atlantic hurricane season and a contributor to
below-average rainfall in the South and Southwest, has faded
away….In California, any drought relief associated with the
end of La Niña won’t come during the dry season that runs well
into next fall.
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.
As Californians can tell by the already beige hills, the early
fire weather warnings and the dusty umbrellas sitting deep
inside closets, it’s been drier than usual this winter. And
according to decades worth of precipitation data, that’s the
new normal. What’s considered “normal” for baseline rainfall
amounts is determined by a 30-year average that gets
recalculated every decade. The latest recalculation, according
to Jan Null, a forecaster who runs Golden Gate Weather
Services, “show a noticeably drier state” through 2020 compared
to the previous “normal” calculation covering 1981 through
2010.
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 legislators are looking eastward to ease the impact of
a two-decade drought in the Colorado River Basin. According to
Arizona Rep. Tim Dunn, who represents the area of Yuma, the
Legislature is asking Congress to fund a technological and
feasibility study for diverting floodwater from the Mississippi
River to replenish the Colorado River. Whether that comes in
the form of a diversion dam or pipeline, Dunn says the plan
would benefit both the Midwestern and Southwestern United
States.
Many dryland cities like Los Angeles, Cairo and Tehran have
already outstripped natural water recharge, but are expected to
continue growing, resulting in a deepening arid urban water
crisis. … The situations in arid and semi-arid cities
like Phoenix, Arizona; Bamako, Mali; or Dubai, UAE, differ in
their particulars, but rhyme in their impending disastrous
trajectory. These, and other arid-region cities, are
approaching the edge of an ecological cliff: dependent on
sustaining growth, which itself requires a growth in water
supplied by faraway and finite sources, and delivered by aging
infrastructure. But water in dryland regions is
getting scarcer and supplies
more unpredictable.
Chula Vista resident and Imperial Beach lifeguard Lillian
Burkhart still remembers the sting on her skin after surfing in
Imperial Beach waters one day last summer. Within 24 hours, she
fell ill with a gastrointestinal infection, she said.
… Burkhart’s experience is commonplace and a reminder of
the decades-long struggle to address the recurring sewage
spills from Tijuana that pollute the South Bay shoreline.
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.
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.
The official “new normal” for the U.S. climate is warmer than
ever before — and the changes are ominous for California,
experts say. The National Oceanic and Atmospheric
Administration on Tuesday released its new climate averages,
based on the 30-year period from 1991 to 2020. The averages,
known as “climate normals,” are updated every 10 years, and
they show most of the country, including California, heating
up. “The influence of long-term global warming is obvious,” the
NOAA said in announcing the updates to its averages.
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.
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.
President Biden’s pick this week to oversee the Army’s vast
natural resources operation would bring to the job decades of
water experience at the Interior Department and on Capitol
Hill. The president tapped Michael Connor to be the Department
of Defense’s assistant secretary of the Army for civil works,
which oversees the Army Corps of Engineers and its huge network
of dams and other projects. Connor would play a major role in
some of the most controversial projects facing the Biden
administration in the environmental arena, including the
Keystone XL and Dakota Access pipelines, as well as Clean Water
Act permitting.
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.
The Navajo Nation can pursue its lawsuit seeking to force the
federal government to secure water from the Colorado River for
the reservation, the Ninth Circuit said Wednesday, reversing a
lower court’s dismissal of the tribe’s breach of trust claim.
The tribe doesn’t seek a judge’s determination of its rights to
the river, which the Interior Department says would fall under
the Supreme Court’s original jurisdiction, according to the
U.S. Court of Appeals for the Ninth Circuit. Instead, the tribe
seeks an order for Interior to determine the extent to which it
needs water, to develop a plan to secure…
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.
In what may become an iconic image for drought-stricken
California, Gov. Gavin Newsom stood on the parched bed of Lake
Mendocino on April 21 to announce an emergency declaration for
Sonoma and Mendocino counties. … [T]he reservoir was at a
historically low 43% of capacity, the harbinger of what could
be a devastating drought cycle not only for the Northern
California counties that fell within his drought declaration,
but for most of the state — indeed, the American
West. -Written by Michael Hiltzik, a Los Angeles Times
columnist.
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.
Let me introduce myself. I am a California water drop. I
condensed from billions of water vapor molecules in the air
above the North Pacific Ocean to become embedded in the clouds
that evolved into a large storm system. Through alternating ups
and downs, and freeze and thaw cycles, I was carried in a
rotating middle latitude wave cyclone as it drifted southeast
and toward California. As the storm swept across the Golden
State, I was forced to rise higher over the mountains and I
grew as a giant ice crystal until I fell as a
fluffy-turned-heavy snowflake in the Sierra Nevada Mountains.
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.
If the San Diego-Tijuana region were a human body, it’d have
the stomach flu: Bad stuff is coming out of both ends. But
instead of tackling the complicated source of the infection,
the border towns are fighting over where to put a Band-Aid. Six
miles from the U.S.-Mexico border lie three giant ponds full of
really old poo that regularly flush into the Pacific Ocean and
flow north along the Southern California coast during summer
tourist season.
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.
More than 20 years ago, aquatic ecologist Michael Bogan
interned with the California Department of Fish and Wildlife in
Bishop, east of the Sierra Nevadas. It was 1998, a wet year for
California, and the idea of studying water in the desert lodged
in his brain. Desert streams are approachable subjects,
especially compared to, say, a massive and murky system like
the Mississippi River, says Bogan, now a professor at the
University of Arizona’s School of Natural Resources and the
Environment: … For Bogan, studying those small systems over
the past two decades has meant witnessing their decline.
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.
California has entered another drought. But depending on who
you ask, the last one may have never really ended. Some
researchers believe the region is actually more than two
decades into an emerging “megadrought” — a hydrological event
that is on par with the worst dry spells of the past
millennium. Except this time, they say, human-caused climate
change is driving its severity — and will make it that much
harder to climb back out of.
San Diegans will undoubtedly head to the ocean this weekend as
temperatures warm — but not in Imperial Beach. Sewage spilling
over from Tijuana forced officials on Friday to completely
close the city’s shoreline yet again. The move comes less than
a week after Baja officials said repairs were completed to a
broken water pump in the Tijuana River, which had allowed tens
of millions of gallons of sewage-tainted water to escape
capture starting in late March.
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.
Southern California, like most of the West, is in the middle of
a record dry season. To combat it and keep the metropolitan
area well-watered, they’re relying more heavily on the Colorado
River, with water pumped directly from the south end of Lake
Havasu. Last Wednesday, the Metropolitan Water District began
pumping from Lake Havasu at full capacity for the first time in
years, drawing water from the Whitsett Intake Pumping Plant
located just north of the Parker Dam. The eight-pump flow is
equivalent to about 3,000 acre feet of water being pumped per
day, according to MWD Manager of Colorado River Resources Bill
Hasencamp.
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 San Diego County Water Authority is no stranger to conflict
– virtually all of its dealings over the past decade have been
shaped by its feud with the Los Angeles-based Metropolitan
Water District of Southern California. Now that feud is fueling
fights within the agency itself.
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.
[T]he 800 to 900 people in Tohatchi, and another 600 to 800 in
Mexican Springs, eight miles to the west, all depend on a
single well and single pump. If the pump running it fails,
or if the water level in it drops — both issues that have
troubled nearby Gallup this year — water will cut out for the
homes, the head-start center, the schools, the clinic, the
senior center, five churches, and the convenience store and gas
station. … [T]he Navajo Nation has waited more than a
century for pipes and water treatment plants that would bring
drinking water to all of its people while watching nearby
off-reservation cities and farms grow, swallowing up water from
the Colorado River Basin that the tribe has a claim to.
The government of Mexico is on the verge of legalizing cannabis
for industrial, medical, and recreational purposes, legislation
that would make Mexico only the third country to legalize all
aspects of cannabis production and all types of the plant’s
use. … Water theft in California is alleged to be
frequently associated with legal and illegal cultivation of
cannabis. It equally pervades legal and illegal cannabis
cultivation in Oregon and Colorado.
-Written by Vanda Felbob-Brown.
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.
South Bay officials are beginning to run out of patience over
the continued cross-border flow of sewage-tainted water. The
pollution warning signs have been up most of 2021 on the sand
in Imperial Beach. Last Friday, the pollution flowed north to
Coronado, forcing beach closures there. Imperial Beach’s top
officials are fed up.
Rainstorms grew more erratic and droughts much longer across
most of the U.S. West over the past half-century as climate
change warmed the planet, according to a sweeping government
study released Tuesday that concludes the situation is
worsening. The most dramatic changes were recorded in the
desert Southwest, where the average dry period between
rainstorms grew from about 30 days in the 1970s to 45 days
between storms now, said Joel Biederman, a research hydrologist
with the U.S. Department of Agriculture Southwest Watershed
Research Center in Tucson, Arizona.
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.
The idea of cloud seeding and weather modification has been
around since 1940. There were federally funded programs in
the 1960s—one named Project Skywater that ultimately
had mixed results. In the 1970s and 1980s, the US government
began experimenting on how weather modification could be used
as a war tool. But outside of ski resorts like Vail, where the
technology is used to help increase snow during snowstorms,
interest in cloud seeding largely dropped off.
… According to the North American Weather
Modification Council, there are currently several projects
being run in California, Wyoming, Colorado, Texas, Utah, among
other states with a project here or there.
It was in 2016 that the state of California declared a
four-year drought had finally come to an end. Now, in 2021, it
could be entering another very dry season. It is in the winter
season that folks on the West Coast welcome dreary days packed
with cloud and rain. California usually sees the most rain and
snow in the month of February. This year, however, was
different: It was quite dry all of the winter season, and we
can blame La Niña for this pattern. … Thirty per cent of
California’s water supply comes from the snowpack in the Sierra
Nevada mountain ranges and only 57 per cent of normal
precipitation has fallen this season. This, coupled with lower
than average snowpack for 2020 as well, could spell trouble
down the road when it comes to water supply.
The blizzard that dumped snow along the Front Range in March
helped Colorado nearly reach its average snowpack for the
winter, federal data shows. But last year’s historically dry
weather means that streams are likely to run lower than normal,
potentially restricting the amount of water some consumers can
use, experts said… Areas east of the Continental Divide
had above average snowpack, but the Colorado River Basin on the
west was below average….
A federal judge has thrown out a legal action from multiple
environmental organizations seeking to halt the expansion of a
key Denver Water storage facility, citing no legal authority to
address the challenge. … The expansion of Gross Reservoir in
Boulder County is intended to provide additional water storage
and safeguard against future shortfalls during droughts. The
utility currently serves customers in Denver, Jefferson,
Arapahoe, Douglas and Adams counties. In July 2020, the Federal
Energy Regulatory Commission gave its approval for
the design and construction of the reservoir’s expansion. The
project would add 77,000 acre-feet of water storage and 131
feet to the dam’s height for the utility’s “North System” of
water delivery.
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.
When it comes to water in the West, a lot of it is visible.
Snow stacks up high in the mountains then eventually melts and
flows down into valleys. It’s easy to see how heavy rains and
rushing rivers translate into an abundance of available water.
But another important factor of water availability is much
harder to see. Beneath the surface, the amount of moisture
held in the ground can play a big role in how much water makes
it down to rivers and reservoirs – and eventually into the
pipes that feed homes and businesses. Elise Osenga is a
community science manager for the Aspen Global Change Institute
– a nonprofit focused on expanding scientific understanding of
climate change.
Local water providers say the current drought is one of the
worst in Colorado history. Mesa County ranges from extreme
drought to exceptional drought in areas and it doesn’t appear
to be improving anytime soon. Below average spring runoff is
anticipated by local water providers as watersheds are working
to be replenished after last year’s drought. … The wildfires
in the Colorado River basin last summer have scarred
significant portions of the Colorado River which may result in
debris, ash, and dense mud flowing into the Colorado River
watershed, which will impact water quality for many water
entities in Mesa County.
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.
About 40 million Americans in the West and Southwest rely on
the Colorado River for drinking water, as do the region’s
massive agriculture and recreation industries. Water has been
the most valuable commodity in the West since the time of the
pioneers. It became a source of modern political power when the
water of the Colorado River was divvied up among seven Western
States in the 1920s — the Jack Nicholson movie “Chinatown”
dramatized California’s legendary water battles. Today, a
rapidly shrinking Colorado River is forced to support
relentless development in California and across the West — very
thirsty development.
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.
Many of the wetlands in the western United States have
disappeared since the 1700s. California has lost an astonishing
90 percent of its wetlands, which includes streamsides, wet
meadows and ponds. In Nevada, Idaho and Colorado, more than 50
percent of wetlands have vanished. Precious wet habitats now
make up just 2 percent of the arid West — and those remaining
wet places are struggling. Nearly half of U.S. streams are in
poor condition, unable to fully sustain wildlife and people,
says Jeremy Maestas, a sagebrush ecosystem specialist with the
NRCS who organized that workshop on Wilde’s ranch in 2016. As
communities in the American West face increasing water
shortages, more frequent and larger wildfires and unpredictable
floods, restoring ailing waterways is becoming a necessity.
Water scarcity is often understood as a problem for regions
experiencing drought, but a new study from Cornell and Tufts
universities finds that not only can localized water shortages
impact the global economy, but changes in global demand send
positive and negative ripple effects to water basins across the
globe. … [I]n the lower Colorado River basin, the worst
economic outcomes arise from limited groundwater availability
and high population growth, but that high population growth can
also prove beneficial under some climatic scenarios.
Arizona tribal officials told a Senate committee Wednesday that
the federal government can help address a crisis with water
infrastructure on their lands through more funding, and less
meddling. Navajo Department of Water Resources Director Jason
John and Colorado River Indian Tribes Chairwoman Amelia Flores
made the comments during a Senate Indian Affairs Committee
hearing on water infrastructure for Native communities. Leaders
of Oregon and Alaska tribes also testified at the
hearing.
Meager anticipated snowmelt runoff is expected to mean another
challenging year for maintaining even below-optimal levels of
flows in the Colorado River downstream of the Palisade area for
the benefit of endangered fish. … What’s referred to as
the 15-Mile Reach of the river between the Palisade area and
the Gunnison River confluence is of particular concern for the
Upper Colorado River Endangered Fish Recovery Program, which
focuses on four endangered fish. The stretch is primarily used
by two of the fish — the razorback sucker and Colorado
pikeminnow. But it’s also used by a third, the bonytail. And a
fourth, the humpback chub, which favors downstream stretches
such as Westwater Canyon, indirectly benefits from efforts to
bolster flows in the 15-Mile Reach.
One of the most critical negotiations for Utah’s future is
coming at a time when Utah’s delegations in Washington D.C. may
be less influential than every other party at the table. The
Colorado River Compact, hammered out in 1922 with few
amendments over the years, expires in 2026. Every other state
in the compact other than Utah has a majority Democratic or
split delegation in Washington. Those states? Colorado, New
Mexico, Arizona, Nevada and California.
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.
Much of the U.S. West is facing the driest spring in seven
years, setting up a climate disaster that could strangle
agriculture, fuel deadly wildfires and even hurt power
production. Across 11 western states, drought has captured
about 75% of the land, and covers more than 44% of the
contiguous U.S., the U.S. Drought Monitor said. While
drought isn’t new to the West, where millions of people live,
grow crops and raise livestock in desert conditions that
require massive amounts of water, global warming is
exacerbating the problem — shrinking snowpack in the Rocky
Mountains and extending the fire season on the West Coast.
The Bureau of Reclamation is awarding $42.4 million in grants
to 55 projects throughout 13 states. These projects will
improve the water reliability for these communities by using
water more efficiently and power efficiency improvements that
water supply reliability and generate more hydropower…. In
California, near the Arizona border, the Bard Water District
will receive $1.1 million to complete a canal lining and piping
project. The project is expected to result in annual water
savings of 701 acre-feet, which will remain in the Colorado
River system for other uses.
The Division of Boating and Waterways (DBW) will be accepting
grant applications for quagga and zebra mussel infestation
prevention programs from March 22 through April 30,
2021. All applications must be received by 5 p.m. on
Friday, April 30, 2021. … California water body
authorities have recognized the westward spread of mussel
infestation via the Colorado River System and the potential
harm to state waterways should lakes and reservoirs become
invaded. To help prevent California waterways from infestation,
DBW provides grants to entities that own or manage any aspect
of water in a reservoir that is open for public recreation and
is mussel-free.
After a record dry summer and fall — and with winter snowpack
currently at 70% of normal levels — Utah Gov. Spencer Cox
signed an emergency order Wednesday declaring a state of
emergency due to drought conditions. The move comes after a
recommendation from the state’s Drought Review and Reporting
Committee and opens the door for drought-affected communities
and agricultural producers to potentially access state or
federal emergency funds and resources, according to a news
release. Cox said Wednesday that state leaders have been
“monitoring drought conditions carefully and had hoped to see
significant improvement from winter storms.”
Western water managers are contending with the growing threat
of shortages. Flow has dwindled on major water systems like the
Rio Grande and the Colorado River, which each supply water to
millions of people. With temperatures steadily rising, cloud
seeding poses one attractive solution.
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.
As Colorado digs out from the recent blizzard, each heavy
shovel full of snow proves the storm brought plenty of
moisture. But is it enough to free the state from its drought
conditions? Russ Schumacher, the Colorado state
climatologist, said the answer largely depends on location. …
Colorado’s drought conditions had improved ahead of the storm.
After record dry weather over the summer and fall, snowpack
levels had inched toward normal throughout the winter, but
western Colorado continued to miss out on the snowfall.
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.
I’ve been writing a lot about the broken sewage system in
Tijuana causing spills into San Diego. Part of the concern, San
Diego officials told me, is that Mexico lacks a system to
monitor whether businesses are dumping toxic waste into the
sewer system. That’s part of the reason why it’s risky to reuse
any of that river water because, if we don’t know what’s in the
water, we can’t be sure how to best treat it. San Diego is
about to run into this issue in a big way with its Pure Water
project, a multibillion-dollar system that’s going to recycle
the city’s sewage and treat it so, well, you can drink
it.
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.
Sometime in the middle of next year, if Northern Water gets its
way, the bulldozers will start piling earth and rock 25 stories
high to plug this dry basin southwest of Loveland
forever. Four miles to the south, they’ll build another
dam to keep their newly-made bathtub from leaking out the back
toward Lyons. Drill crews will bore a massive pipeline through
the hogback making up the east edge of the bathtub, in order to
feed Carter Lake a few hundred yards to the east. They’ll move
a power line. Help build a surrounding open space park. Upgrade
a sewage plant in Fraser. Four years later, they’ll close dam
gates reinforced to hold back 29 billion gallons of life-giving
water.
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.
The Grand Canyon Protection Act was recently introduced by U.S.
Rep. Raύl Grijalva and passed in the House and has been
introduced in the Senate by Sen. Kyrsten Sinema. The bills will
permanently protect about 1 million acres of public lands
surrounding Grand Canyon from the harmful and lasting damage of
new uranium mining. … This legislation is critical
to stopping the threats that mining poses to water quality and
quantity, unique habitats and wildlife pathways, and to sacred
places. -Written by Sandy Bahr, director for Sierra
Club’s Grand Canyon Chapter, and Amber Wilson
Reimondo, Energy Program director with Grand Canyon
Trust.
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.
A bipartisan group of California lawmakers is confronting
pollution problems along the U.S.-Mexico border, especially in
the Tijuana River Valley between San Diego and Tijuana. Several
House members who represent Southern California introduced a
bill called the Border Water Quality Restoration Act. Similar
legislation was presented last week in the U.S. Senate. If
approved, it will give the Environmental Protection Agency the
authority to coordinate all federal, state, and local agencies
when planning construction and infrastructure projects to
mitigate pollution in waterways throughout the southern border.
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.
A coalition of San Diego County elected representatives
introduced a bill on Monday to address water pollution along
the U.S.-Mexico border. The Border Water Quality Restoration
and Protection Act would designate the Environmental Protection
Agency as the lead agency coordinating federal, state and local
agencies’ efforts to build and maintain infrastructure projects
aimed at reducing pollution along the border.
A new Colorado River study predicts we may need to make even
deeper cuts to keep our reservoirs from tanking over the long
haul. But the dire conclusions within the study aren’t what
make it so intriguing. It’s how the group arrived at them. The
Future of the Colorado River project, an effort based out of
Utah State University, has produced six white papers to
evaluate new approaches to water management along the river.
And, most notably, it is using the Colorado River Simulation
System (CRSS), the same modeling tool the Bureau of Reclamation
uses to develop its long-term water availability forecasts for
the basin. - Written by Joanna Allhands, a columnist for the Arizona
Republic.
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 hot dry conditions that melted strong snowpack early in
2020 and led to severe drought, low river flows and record
setting wildfires across the state could be a harbinger of what
is to come in Colorado. Climate change is likely to drive
“chaotic weather” and greater extremes with hotter droughts and
bigger snowstorms that will be harder to predict, said Kenneth
Williams, environmental remediation and water resources program
lead at Lawrence Berkeley National Laboratory, headquartered in
California.
Much of the western U.S. continues to endure a long-term
drought, one that threatens the region’s water supplies
and agriculture and could worsen wildfires this year. In fact,
some scientists are calling the dryness in the West a
“megadrought,” defined as an intense drought that lasts
for decades or longer. Overall, about 90% of the West is
now either abnormally dry or in a drought, which is among the
highest percentages in the past 20 years, according to this
week’s U.S. Drought Monitor.
A bill aimed at addressing pollution along the U.S.- Mexico
border and improving water quality in the Tijuana and New
rivers was introduced Wednesday. The Border Water Quality
Restoration and Protection Act would designate the
Environmental Protection Agency as the lead agency coordinating
federal, state and local agencies to build and maintain
infrastructure projects aimed at reducing pollution along the
border. It would also require the EPA and other agencies to
identify a list of priority projects and would authorize the
EPA to accept and distribute federal, state, and local funds to
build, operate and maintain those projects.
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.
In 1854, the Gadsden Purchase modified a short, 30-mile stretch
of the western border to be the midline of the Colorado River.
The Mexican and U.S. governments soon realized that when these
rivers shifted across their floodplains, questions about
national jurisdiction arose. For example, an exasperated U.S.
agent reported that “the lower Colorado … alters its channel
from time to time, cutting off a large stretch of land on one
bank and depositing the soil on the other or leaving its old
bed and tearing through a large piece of silty bottom land to
form a channel some distance away.” The agent went on to
complain that these movements made it difficult to determine
which land fell on which side of the line…
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.
A Senate committee unanimously approved a bill Thursday to
create Utah’s Colorado River Authority, which would be tasked
with helping the state renegotiate its share of the river.
Originally the bill allowed broad reasons to close meetings and
protect records. It’s since been changed twice to come more
into compliance with the state’s open meeting and record laws.
Critics of the bill said it’s still not enough. Mike O’Brien,
an attorney with the Utah Media Coalition, said having a
narrower scope for open meetings and records exemptions makes
the bill better than when it was first introduced. But he
wishes it would follow laws already there.
Like a giant garbage disposal, three huge new green pipes sit
on Mexico’s side of the border, shredding trash in the Tijuana
River that would otherwise jam this critical piece of the
city’s wastewater system that caused spills on the United
States side.
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.
Utah House Bill 297 is a dangerous spending bill that provides
its benefactors with exemptions to conflict-of-interest laws
that raises serious moral questions about what is happening at
the Utah Legislature. The bill creates another heavily-funded
and secretive government agency — the Colorado River Authority
— that would receive an initial $9 million, plus $600,000 per
year thereafter, in addition to collecting unknown sums of
money from other agencies. -Written by Claire Geddes, a consumer advocate and former
director of Utah Legislative Watch.
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.
Big projects aimed at stemming the toxic sewage flowing from
Tijuana into Imperial Beach and the surrounding region are on
the horizon and that’s a welcome development. But any such
improvements come with a nagging question based on historical
experience: How long will this fix last? Cross-border pollution
has been a problem for the better part of a century and has
defied past efforts to solve it. It’s not that previous actions
didn’t help. Some did, and they greatly diminished the health
and environmental threat — and reduced beach
closures. -Written by Michael Smolens, a columnist for the San Diego
Union-Tribune.
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.
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.
A proposed water recycling project in Southern California could
result in Nevada getting some of the Golden State’s share of
water from the Colorado River. The Southern Nevada Water
Authority could invest up to $750 million into the water
treatment project. In return for the investment, it could get a
share of California’s water in Lake Mead. If built, the project
would give the region another tool to protect itself against
the ongoing strain of drought conditions on the Colorado River.
[T]he president of New York-based hedge fund Water Asset
Management … has called water in the United States “a
trillion-dollar market opportunity.” The hedge fund invested
$300 million in farmland in Colorado, California, Arizona and
Nevada as of 2020, including $16.6 million on 2,220 acres of
farmland with senior water rights in Colorado’s Grand Valley
just upstream from where the Colorado River crosses into Utah.
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.
I’ve written in the past about the San Diego County Water
Authority’s efforts to divest from its parent agency the
Metropolitan Water District of Southern California. That
includes the bad blood between the two agencies stemming from
MWD’s water cutbacks to San Diego in 1991, and how local
leaders felt they were mistreated. What I didn’t realize was
just how far back the tension goes between San Diego leaders
and MWD. All the way back to the Great Depression…
