… [In] arid San Diego, water is already treated like a
precious commodity. As drought increases in the coming years,
protecting this resource will become even more important.
Human-caused climate change is transforming weather patterns
and shifting ecosystems around the globe. In some places,
climate change means too much water; in others, it causes
drought. Global action is needed to curb fossil fuel use, slow
the rise in temperatures and prevent the worst impacts of
human-driven climate change. But significant warming is already
baked in. Cities will have to respond, and some are already
taking bold steps. … And San Diego is recycling wastewater
back into city taps — one of the first major cities to do so.
Each of these three cities offers a different roadmap for
climate adaptation that has lessons for other places around the
world. And while no single approach will be a silver bullet,
each offers a hopeful vision of how we can learn to live and
thrive on a warming planet.
The Silicon Valley Advanced Water Purification Center is
celebrating its 10th anniversary as a leader in water
innovation in the region. Over the past decade, the center has
provided purified water to enhance recycled water quality for
non-potable uses such as irrigation and cooling towers. Looking
ahead, Valley Water is focused on expanding purified water for
drinking. In the face of growing water challenges caused by
climate change, local partnerships will be crucial to the
success of purified drinking water. —By Tony Estremera, District 2 representative on the
Valley Water board of directors
The House Committee on Transportation and Infrastructure voted
57-7 on Wednesday to advance Rep. Scott Peters’ bipartisan
Ocean Pollution Reduction Act II. The legislation would
simplify the city of San Diego’s permitting process to operate
the Point Loma Wastewater Treatment Plant, which will allow the
city to move forward with its water-recycling project, Pure
Water. The program will supply half of San Diego’s drinking
water by 2035 and help solidify the region’s water security
amidst worsening conditions on the Colorado River. San Diego’s
Congressional delegation, Sara Jacobs, Mike Levin and Juan
Vargas, all, like Peters, D-San Diego, along with Darrell Issa,
R-Escondido, are original co-sponsors of the bill.
Inflation and major problems with tunneling and flooding have
ballooned the price tag for San Diego’s Pure Water sewage
recycling system by $130 million, a 10 percent hike that’s
expected to raise sewer and water rates. The city has already
burned through nearly the entire $115 million contingency fund
set aside to cover cost overruns and unexpected expenses when
the $1.14 billion project was approved in 2021. Officials say
they need $130 million more to keep ongoing construction of
pipelines, purification plants and pump stations on track for
completion by early 2027, a few months before a federal
deadline. The city faces that deadline because building Pure
Water is part of a settlement agreement over the city’s
outdated Point Loma Wastewater Treatment Plant not meeting
Clean Water Act standards.
… Without urgent and immediate action, Los Angeles could be
trapped in its own version of “The Twilight Zone.” Will it be a
fiery landscape where sizzling sidewalks cause second-degree
burns, wildfire smoke blots out the sun, and water flows only
sometimes, and mostly not at all? Or will California’s penchant
for innovation be our salvation, transforming Los Angeles into
a place where every drop of water is recycled and every
resident has enough shade and cooling to survive?
… When you turn on your tap, about 90% of that
water comes from far away: the Owens Valley, Northern
California and the Colorado River. Only 8% comes from local
groundwater, and even less — a paltry 2% — comes from
recycling, or wastewater that is cleaned, repurposed and
reused. … When you turn on your faucet in 2035, at least 70%
of the water will be sourced locally, and even more by
midcentury.
For more than 15 years, a pair of sewage treatment plants in
eastern Tijuana have presented an opportunity – and a
challenge. The plants, Arturo Herrera and La Morita, raised
hopes for a major wastewater reuse effort in the city – for
irrigation, construction and industrial use. … But
without a network of pipes to deliver the plants’ discharge,
most of that highly treated wastewater has gone
unused. … Today, as Tijuana faces growing water
shortages, authorities with the Baja California water agency,
CESPT, are studying a solution: piping the plants’ discharge to
a spot just upstream from A.L. Rodriguez Dam, for storage and
eventual delivery to a plant that would convert it to drinking
water. The project would be one of the first in Mexico that
involves what engineers call “indirect potable reuse.”
… Sonoma County supervisors approved a combined $8.4 million
last week to purchase the 394-acre Russian River Redwoods
property south of Guerneville and the 384-acre Camp Meeker
Forest Open Space north of Occidental. … The
grassroots Guerneville Forest Coalition and its
partners challenged what had been the 224-acre Silver Estates
Timber Harvest Plan beginning when it was first proposed in
2020, then took Cal Fire to court when the state agency
approved a modified version of the logging plan. Opponents
argued the harvest plan failed to protect threatened and
endangered species, risked undermining steep, unstable
hillsides, threatened harm to water quality and would mar the
views from Highway 116, a state-designated Scenic
Highway.
State water management officials must work more closely with
local agencies to properly prepare California for the effects
of climate change, water scientists say. Golden State
officials said in the newly revised California Water
Plan that as the nation’s most populous state, California
is too diverse and complex for a singular approach to manage a
vast water network. On Monday, they recommended expanding the
work to better manage the state’s precious water resources —
including building better partnerships with communities most at
risk during extreme drought and floods and improving critical
infrastructure for water storage, treatment and distribution
among different regions and watersheds.
After more than two decades of
drought, water utilities serving the largest urban regions in the
arid Southwest are embracing a drought-proof source of drinking
water long considered a supply of last resort: purified sewage.
Water supplies have tightened to the point that Phoenix and the
water supplier for 19 million Southern California residents are
racing to adopt an expensive technology called “direct potable
reuse” or “advanced purification” to reduce their reliance on
imported water from the dwindling Colorado River.
Momentum is building for a unique
interstate deal that aims to transform wastewater from Southern
California homes and business into relief for the stressed
Colorado River. The collaborative effort to add resiliency to a
river suffering from overuse, drought and climate change is being
shaped across state lines by some of the West’s largest water
agencies.
The southern part of California’s Central Coast from San Luis Obispo County to Ventura County, home to about 1.5 million people, is blessed with a pleasing Mediterranean climate and a picturesque terrain. Yet while its unique geography abounds in beauty, the area perpetually struggles with drought.
Indeed, while the rest of California breathed a sigh of relief with the return of wet weather after the severe drought of 2012–2016, places such as Santa Barbara still grappled with dry conditions.
Summer is a good time to take a
break, relax and enjoy some of the great beaches, waterways and
watersheds around California and the West. We hope you’re getting
a chance to do plenty of that this July.
But in the weekly sprint through work, it’s easy to miss
some interesting nuggets you might want to read. So while we’re
taking a publishing break to work on other water articles planned
for later this year, we want to help you catch up on
Western Water stories from the first half of this year
that you might have missed.
Californians have been doing an
exceptional job
reducing their indoor water use, helping the state survive
the most recent drought when water districts were required to
meet conservation targets. With more droughts inevitable,
Californians are likely to face even greater calls to save water
in the future.
Although Santa Monica may be the most aggressive Southern California water provider to wean itself from imported supplies, it is hardly the only one looking to remake its water portfolio.
In Los Angeles, a city of about 4 million people, efforts are underway to dramatically slash purchases of imported water while boosting the amount from recycling, stormwater capture, groundwater cleanup and conservation. Mayor Eric Garcetti in 2014 announced a plan to reduce the city’s purchase of imported water from Metropolitan Water District by one-half by 2025 and to provide one-half of the city’s supply from local sources by 2035. (The city considers its Eastern Sierra supplies as imported water.)
Imported water from the Sierra
Nevada and the Colorado River built Southern California. Yet as
drought, climate change and environmental concerns render those
supplies increasingly at risk, the Southland’s cities have ramped
up their efforts to rely more on local sources and less on
imported water.
Far and away the most ambitious goal has been set by the city of
Santa Monica, which in 2014 embarked on a course to be virtually
water independent through local sources by 2023. In the 1990s,
Santa Monica was completely dependent on imported water. Now, it
derives more than 70 percent of its water locally.
This 2-day, 1-night tour offered participants the opportunity to
learn about water issues affecting California’s scenic Central
Coast and efforts to solve some of the challenges of a region
struggling to be sustainable with limited local supplies that
have potential applications statewide.
There’s going to be a new governor
in California next year – and a host of challenges both old and
new involving the state’s most vital natural resource, water.
So what should be the next governor’s water priorities?
That was one of the questions put to more than 150 participants
during a wrap-up session at the end of the Water Education
Foundation’s Sept. 20 Water Summit in Sacramento.
California voters may experience a sense of déjà vu this year when they are asked twice in the same year to consider water bonds — one in June, the other headed to the November ballot.
Both tackle a variety of water issues, from helping disadvantaged communities get clean drinking water to making flood management improvements. But they avoid more controversial proposals, such as new surface storage, and they propose to do some very different things to appeal to different constituencies.
This 2-day, 1-night tour traveled through Inland
Southern California to learn about the region’s efforts in
groundwater management, recycled water and other drought-proofing
measures.
This 30-minute documentary-style DVD on the history and current
state of the San Joaquin River Restoration Program includes an
overview of the geography and history of the river, historical
and current water delivery and uses, the genesis and timeline of
the 1988 lawsuit, how the settlement was reached and what was
agreed to.
This 25-minute documentary-style DVD, developed in partnership
with the California Department of Water Resources, provides an
excellent overview of climate change and how it is already
affecting California. The DVD also explains what scientists
anticipate in the future related to sea level rise and
precipitation/runoff changes and explores the efforts that are
underway to plan and adapt to climate.
20-minute DVD that explains the problem with polluted stormwater,
and steps that can be taken to help prevent such pollution and
turn what is often viewed as a “nuisance” into a water resource
through various activities.
This 7-minute DVD is designed to teach children in grades 5-12
about where storm water goes – and why it is so important to
clean up trash, use pesticides and fertilizers wisely, and
prevent other chemicals from going down the storm drain. The
video’s teenage actors explain the water cycle and the difference
between sewer drains and storm drains, how storm drain water is
not treated prior to running into a river or other waterway. The
teens also offer a list of BMPs – best management practices that
homeowners can do to prevent storm water pollution.
As the state’s population continues to grow and traditional water
supplies grow tighter, there is increased interest in reusing
treated wastewater for a variety of activities, including
irrigation of crops, parks and golf courses, groundwater recharge
and industrial uses.
The 28-page Layperson’s Guide to Nevada Water provides an
overview of the history of water development and use in Nevada.
It includes sections on Nevada’s water rights laws, the history
of the Truckee and Carson rivers, water supplies for the Las
Vegas area, groundwater, water quality, environmental issues and
today’s water supply challenges.
The 28-page Layperson’s Guide to California
Wastewater is an in-depth, easy-to-understand publication
that provides background information on the history of wastewater
treatment and how wastewater is collected, conveyed, treated and
disposed of today. The guide also offers case studies of
different treatment plants and their treatment processes.
Title 22 of California’s Code of
Regulations refers to state guidelines for how treated and
recycled water is discharged and used.
State discharge standards for recycled water and its reuse are
regulated by the 1969 Porter-Cologne Water Quality Control Act
and the State Water Resources Control Board’s 2019 Water
Recycling Policy.
All water is naturally recycled and
reused as part of the hydrologic cycle. Recycled
water is also produced by purifying wastewater for safe use in
drinking (potable) water and for non-potable uses such as
irrigation.
Recycling wastewater provides a new, costly but renewable water
resource that can bolster local water supplies, save energy and
reduce the amount of sewage treatment plant effluent emptied into
rivers and oceans.
Wastewater management in California centers on the collection,
conveyance,
treatment, reuse and disposal of wastewater. This process is
conducted largely by public agencies, though there are also
private systems in places where a publicly owned treatment plant
is not feasible.
In California, wastewater treatment takes place through 100,000
miles of sanitary sewer lines and at more than 900 wastewater
treatment plants that manage the roughly 4 billion gallons of
wastewater generated in the state each day.
Grey water, also spelled as gray water, is water that already has
been used domestically, commercially and industrially. This
includes the leftover, untreated water generated from washing
machines, bathtubs and bathroom sinks.
This printed issue of Western Water features a
roundtable discussion with Anthony Saracino, a water resources
consultant; Martha Davis, executive manager of policy development
with the Inland Empire Utilities Agency and senior policy advisor
to the Delta Stewardship Council; Stuart Leavenworth, editorial
page editor of The Sacramento Bee and Ellen Hanak, co-director of
research and senior fellow at the Public Policy Institute of
California.
This printed issue of Western Water looks at the energy
requirements associated with water use and the means by which
state and local agencies are working to increase their knowledge
and improve the management of both resources.
When a drought occurs as it has this year, the response is
couched in the three Rs of the waste hierarchy: reduce, reuse and
recycle.
The reduction part is well-known. State and local officials are
urging people to use less water in everything they do, from
landscape irrigation to shorter showers. Spurred by California’s
difficulties, Gov. Arnold Schwarzenegger on June 4 declared a
statewide drought. On July 10, the governor and Sen. Dianne
Feinstein announced their support of the Safe, Clean, Reliable
Drinking Water Supply Act of 2008 – a $9.3 billion bond proposal
that would allocate $250 million for water recycling projects.
This issue of Western Water examines the continuing practice of
smart water use in the urban sector and its many facets, from
improved consumer appliances to improved agency planning to the
improvements in water recycling and desalination. Many in the
water community say conserving water is not merely a response to
drought conditions, but a permanent ethic in an era in which
every drop of water is a valuable commodity not to be wasted.
Water is the true wealth in a dry land – Wallace Stegner
One hundred years ago, President Theodore Roosevelt signed
legislation that changed the course of American history and
permanently altered the landscape of the western United States.
The West of today retains some of the vestiges of the land that
brought the explorers, entrepreneurs and dreamers hundreds of
years ago. Despite the surge in population, vast tracts of
wilderness remain – forests thick with evergreen trees and
seemingly unending open spaces where human inhabitants are few
and far between.
Drawn from a special stakeholder symposium held in September 1999
in Keystone, Colorado, this issue explores how we got to where we
are today on the Colorado River; an era in which the traditional
water development of the past has given way to a more
collaborative approach that tries to protect the environment
while stretching available water supplies.