Devastating floods are almost annual occurrences in the West and
in California. With the anticipated sea level rise and other
impacts of a changing climate, particularly heavy winter rains,
flood management is increasingly critical in California.
Compounding the issue are man-made flood hazards such as levee
stability and stormwater runoff.
Grimes and Knights Landing are among three projects that have
been selected to receive grant funding under the second phase
of the Small Communities Flood Risk Reduction Program,
according to the California Department of Water Resources.
Construction will begin soon at Lake Success to increase flood
protection in the Porterville area by widening and reinforcing
Schafer Dam. On May 18, the U.S. Army Corps of Engineers
awarded a contract for up to $30 million to Central
Environmental Incorporated in Anchorage, Alaska to begin
construction…
In recognition of National Dam Safety Awareness Day, Andy
Mangney who serves as the Field Engineering Branch Chief
overseeing DSOD’s dam inspection and monitoring program, took
some time to answer questions about what DSOD is doing to
protect Californians.
The likelihood of intense storms is rising rapidly in North
America, and the study, published Monday in the Proceedings of
the National Academy of Sciences, projects big increases in
such deluges. … If the current rate of warming continues,
Earth will heat up 5.4 degrees by 2100. Then, 20, 50 and
100-year extreme rainstorms could happen every 1.5 to 2.5
years, the researchers concluded.
In May, Cyclone Amphan made landfall in Bangladesh and eastern
India. The category 5 storm forced around 3 million people to
flee their homes. With this scenario in mind, a group of
disaster experts published guidelines for political leaders and
emergency managers so that they can prepare before the storms
hit.
U.S. policymakers understand quite well the impact of Mexico’s
wastewater management on American communities. What they fail
to comprehend is that the ongoing border sewage crisis is
rooted in a longer history of U.S. imperialism and private
enterprise in the San Diego-Tijuana region.
The proposals from the Bureau of Land Management would
eliminate a 15-day protest period afforded to the public to
comment on timber sales and other forest management decisions.
BLM said the comment period they are proposing to cut is
repetitive, as people can already submit their thoughts when a
project is undergoing review under the National Environmental
Policy Act.
The water keeps rising, shrinking the window for implementing
solutions. Sea-level rise already threatens the bay shore,
which, at about 500 miles, is half the length of the entire
California coast. The worst is yet to come: The Bay Area needs
to plan for a 2-foot rise by 2050 and up to 7 feet by 2100.
The 2008 financial market crash was called a “black swan” event
— an extreme catastrophic event that was not anticipated. We
hope that when a catastrophic dam failure occurs in the United
States it will not be called a black swan, since there is
already strong evidence that the combination of aging and
poorly maintained infrastructure and climate extremes could be
very deadly.
Westlands Water District sent shockwaves through the Central
Valley water world recently after it alerted several districts
that it intends to apply for rights to flood flows on the San
Joaquin River.
The term “crisis on the border” typically refers to immigration
issues or drugs being smuggled into the country. But it has one
more meaning, as we discovered, when we went to the border in
early February: tens of millions of gallons of raw sewage that
spill every year into the Tijuana River on the Mexican side and
flow across the border right into Southern California,
polluting the land, air, and sea.
As part of an effort to modernize Pyramid Dam located in Los
Angeles County, the Department of Water Resources (DWR)
recently completed assessments for the dam’s gated and
emergency spillways. The Pyramid Dam Modernization Program is
now entering the investigations phase, which includes
structural and hydraulic analyses for the gated spillway and
erodibility analysis for the emergency spillway.
This network has been built up over 20+ years during several
epochs, including most recently in support of Forecast-Informed
Reservoir Operations with USACE and Sonoma Water, and with an
eye toward developing knowledge of what observations would be
needed in the future to support California’s needs for
hydrometeorological information related to drought and flood
monitoring and mitigation across the state.
It was during the drought in the late-1980s that Robin Kulakow
and her fellow birdwatchers began noticing that Putah Creek was
running dry. The same observation was being made at places such
as Camp Davis, a popular site near the university where youth
paddled their canoes and participated in other activities.
In 2014, the Cleveland National Forest (CNF) initiated an
effort to restore the migratory corridors for fish and other
aquatic species in the San Juan and Santiago Watersheds by
removing the remnants of small (approximately 2 – 15 ft) dams
constructed by Orange County (California) between 1940-70s.
More than 15,000 dams in the US would likely kill people if
they failed, and at least 2,300 of them are in poor or
unsatisfactory condition, according to recent data from the
federal government’s National Inventory of Dams.
No one can say yet whether the intense rainfall that preceded
this disaster [in central Michigan] was made worse by climate
change. But global warming is already causing some regions to
become wetter, and increasing the frequency of extreme storms,
according to the latest National Climate Assessment. … That
puts more of the nation’s 91,500 dams at risk of failing,
engineers and dam safety experts said.
To address the challenges atmospheric rivers present, the
Center for Western Weather and Water Extremes (CW3E) was
established at the Scripps Institute of Oceanography to advance
scientific understanding of atmospheric rivers and their role
in extreme events and to improve forecasting capabilities.
Earlier this year, a webinar hosted by the Scripps Corporate
Alliance highlighted the Center’s accomplishments.
The agreement between property owners, nonprofits and multiple
governmental agencies outlines a plan to remove the weir, or
low wooden dam at the mouth of the lagoon, and excavate the
entire 220-acre preserve to restore tidal flushing. … Without
intervention, the lagoon would continue to fill with sediment
and vegetation until it eventually disappears.
Over the past six months, scientists have been flying high over
the Pacific Ocean, into the stratosphere to study weather
phenomena called atmospheric rivers. These rivers in the sky
can deliver huge amounts of rain and snow to the west coast.
And they may be getting more intense. NPR’s Nathan Rott joined
them for a flight.
For decades, sediment buildup in California’s Butano Creek
caused an array of issues for both fish and people. It flooded
roads and local communities, prevented steelhead and coho
salmon from migrating, and contributed to substantial die-offs
of fish. In October 2019, the NOAA Restoration Center and
partners finished a $7 million effort to remove the sediment
and restore the creek.
California has a paradoxical history with its environment. On
one hand, the state boasts incredible natural beauty, along
with a government that is an internationally recognized leader
for strong environmental policies. But the state’s residents
have also caused severe environmental destruction, particularly
in the late nineteenth century — some of which helped spur the
mobilization that led to these environmental successes.
The Three Rivers Levee Improvement Authority plans to finish a
levee improvement program at the Goldfields later this year
that has been in the making since 2004 and will have cost
approximately $500 million once all is said and done.
Like an undulating seesaw, weather in some regions swings from
drought to heavy rain under the weight of climate-induced
changes, a new study finds. The analysis, published in
Geophysical Research Letters, finds a link between droughts
followed by heavy rain events, along with an increased rate of
these successive extreme weather occurrences.
The U.S. Environmental Protection Agency has proposed spending
$300 million to address the problem of toxic sewage flowing
across the border into San Diego County, legislators announced
Tuesday. The money would be part of the United
States-Mexico-Canada Agreement Implementation Act, and will be
used for the engineering, planning, design and construction of
wastewater infrastructure at the border, officials said.
The 2017 Central Valley Flood Protection Plan’s Investment
Strategy looked at … retooling the Sacramento-San Joaquin
Drainage District to provide a small continuous funding stream
for ongoing expenditures of the flood management system. At the
April meeting of the Central Valley Flood Protection Board,
consultants discussed the upcoming feasibility study.
Being born from an engineering miscalculation on the part of
the California Development Company means the Salton Sea has
been written off as an “accident” in histories inked on many
pages, ranging from The Washington Post to the Daily Mail. But
that framing is too simplistic, new research suggests, arguing
that the sea’s formation was inevitable, regardless of the
famous canal breach in 1905.
A strange thing happens during particularly wet winters in
California: farmers flood their fields. … Aquifers are the
last line of defense against drought conditions. By flooding
their fields in January, farmers hope to fill these underground
reservoirs with water they can use in August. If a trio of
recent studies prove accurate, one can expect to see this
method deployed more regularly.
Rather than soaking into the ground, the water is swept quickly
into rivers and streams where it increases flood hazards. But
how much of a hazard are these impervious surfaces? A new study
has estimated the size of the effect. For every additional
percentage point of impervious surface in a watershed — going
from 5 percent coverage to 6 percent coverage, for instance —
the peak of the highest flood flow of the year increases by 3.3
percent.
The USDA’s Natural Resources Conservation Service announced
today the availability of up to $5 million for wetland
mitigation banks. This funding through the Wetland Mitigation
Banking Program is available to help conservation partners
develop or establish mitigation banks to help agricultural
producers maintain eligibility for USDA programs.
A long awaited $74 million project to enlarge the Success
Reservoir will expand water storage along the Tule River from
82,000 to 110,000 acre feet and provide additional flood
protection for residents of Porterville and surrounding
communities.
The U.S. Department of Interior started a water experiment
along the Colorado Friday, May 1, at the Glen Canyon Dam,
located near Page Arizona. The experiment is meant to improve
the egg-laying conditions for insects that live at least some
part of their lives in the water, which are the primary food
source for endangered Colorado River fish as well as native
fish.
On a recent sunny, windy March day – just before COVID-19 sent
the [San Francisco] Bay Area into lockdown – Dave Halsing stood
on the trails at Eden Landing Ecological Reserve and
pointed out what used to be old industrial salt ponds. He noted
how they’re gradually being restored into a rich mosaic of
tidal wetlands and other ecosystems in the South Bay Salt Pond
Restoration Project.
Dr. Laurel Larsen, an expert in hydroecology, landscape
dynamics, complex environmental systems, and environmental
restoration, was unanimously appointed by the Delta Stewardship
Council on Thursday as lead scientist. Most recently, Dr.
Larsen has served as an associate professor in the Department
of Geography and Civil and Environmental Engineering at the UC
Berkeley.
To prevent flooding and manage water levels in a Sonoma creek,
a pond leveler will be installed where a family of beavers is
living, Sonoma County Water Agency officials said. The pond
leveler will help water transfer through the beaver dam so that
the pond doesn’t cause flooding. It will also assist with
maintaining the habitat for the beavers…
Just days before Covid-19 spurred a vast quarantine-at-home in
California, a crew of workers in downtown Oakland was busily
planting dozens of potted grasses, shrubs and trees in a newly
sculpted garden bed in what had been a gutter and a row of
parking stalls a block from City Hall.
The Department of Water Resources announced $7 million in
grants to restore streams, creeks, and rivers to more natural
environmental conditions and reduce flood damage risks across
multiple communities in California.
When the Water Forum Agreement was officially signed 20 years
ago, the occasion marked an unprecedented show of regional
cooperation. For years, interests representing business, the
environment, water suppliers and others had sparred over the
water needs of people vs. the environment of the lower American
River.
Lewis MacAdams, a poet and crusader for restoring the concrete
Los Angeles River to a more natural state and co-founder of one
of the most influential conservation organizations in
California, has died. He was 75.
Although it is clear that river discharge is the major source
of plastic pollution entering the oceans, there remains
uncertainty around how plastic pollution is transported through
rivers and coastal marine waters. How important is stormflow
for delivering plastic pollution from rivers to the coastal
ocean? How are microplastics transported through coastal
environments? How much is eventually sinking and settling on
the seafloor?
Pacific Gas and Electric Company (PG&E) announced that it
will be upgrading the Lower Bucks Lake Dam this year by
attaching a waterproof membrane to the upstream surface of the
dam to prevent seepage and extend the dam’s service life.
It has been 30 years since the last time a dam was seriously
considered on the East Fork [of the Carson River] as a means to
reduce flooding and increase water for agriculture and other
uses. … The East Fork begins near the base of Sonora Peak in
California. The river’s upper gorge was carved out by a 16-mile
glacier coming off the 11,500-foot high mountain. It is one of
only two major free-flowing rivers in the Eastern Sierra.
No one knows exactly how this coming fire season will shake
out, but experts and fire officials agree the COVID-19 pandemic
will make an already hard job much tougher.
Yolo Basin Foundation’s Board of Directors announced this week
that Chelsea Martinez has been named the Foundation’s new
executive director. … Martinez joined the Foundation in 2017
as the Community Outreach & Volunteer Coordinator and has grown
and sustained the Foundation’s volunteer base to over 200
volunteers as well as helped to increase community involvement
in its programs.
In the past decade, environmental groups have had success
bringing back patches of life in parts of the river delta. In
these green islands surrounded by the desert, water delivered
by canals and pumps is helping to nourish wetlands and forests.
Cottonwoods and willows have been growing rapidly. Birds have
been coming back and are singing in the trees.
Kristin Sicke is Assistant General Manager for Yolo County
Flood Control and Water Conservation District, which manages
water supplies for 200,000 acres in western Yolo County, which
encompasses Woodland, Davis, and the surrounding area. In this
presentation from the 2019 Western Groundwater Congress, Ms.
Sicke describes the district’s efforts to use winter stormwater
flows for groundwater recharge in the Yolo subbasin.
A new study in Nature Scientific Reports says the possibility
of extreme flooding along U.S. Coastlines is going to double
every five years, and that dangerously high water levels we now
expect to see every 50 years will become: Annual occurrences by
2050; Daily occurrences by 2100.
How critical are Sacramento Valley floodplains for a vibrant
fishery? A California Fish and Game Bulletin from 1930 gives us
a clue. The report documents the Sacramento River commercial
salmon catch declining from 6 million pounds in 1918 to less
than 1 million pounds by 1927.
Led by the San Francisco Bay Conservation and Development
Commission, the report takes study findings from throughout the
region to demonstrate the shared impacts of sea level rise
ranging from 12 to 108 inches on housing, transportation
networks, critical environmental habitat, jobs and
disadvantaged communities.
Since March 10, the weather station on the University of
Southern California’s campus has seen just under seven inches
of rain, or nearly half of all taken in for the entire water
year. If that sounds like a lot for March and April, it is.
According to historic norms, the average rainfall during those
two months is 3.34 inches.
Without the river, there would not have been an Emigrant Trail
through this site, gold would not have been discovered in
Dayton and who knows when the Comstock Lode would have been
discovered and Nevada might not even be Nevada today!
It’s a simple rule, designed to protect both homeowners and
taxpayers: If you want publicly subsidized flood insurance, you
can’t build a home that’s likely to flood. But local
governments around the country, which are responsible for
enforcing the rule, have flouted the requirements, accounting
for as many as a quarter-million insurance policies in
violation, according to data provided to The New York Times by
the Federal Emergency Management Agency…
In the fall of 2018, a six-member independent Social Science
Task Force was charged by the Delta Stewardship Council’s Delta
Science Program to develop a strategy for strengthening and
integrating social sciences into the science, management, and
policy landscape of the Sacramento-San Joaquin Delta. This
document summarizes the findings and recommendations of the
Task Force.
When modeling the El Niño-Southern Oscillation (ENSO)
ocean-climate cycle, adding satellite sea surface salinity — or
saltiness — data significantly improves model accuracy,
according to a new NASA study.
A slow-moving storm system will bring more rain and mountain
snow to parts of California through Thursday, and could trigger
flash flooding in the Mojave Desert, including some of
America’s typically driest places.
Los Angeles County can move forward on plans to develop 2,000
acres along the Santa Clara River without conducting a new
assessment of the project’s impact on local water supply, a
California appeals court ruled.
Today, as the chief of dam safety services within the Division
of Operations and Maintenance (O&M) of California’s
Department of Water Resources (DWR), David Sarkisian guides a
team of 25 engineers that monitors, surveils, inspects and
guides the on-going maintenance of the 26 dams and reservoirs
within the California State Water Project (SWP), many of which
are more than 50 years old.
The Los Angeles River is special to Ed Reyes, who considers it
an integral part of his childhood. Reyes, 60, the executive
director of River LA and a former Los Angeles City councilman,
grew up about a half-mile from the river. He remembers playing
chicken with the rail cars and using his Stingray bike to dodge
the cars coming and going.
Two 30-inch outlet pipes in the dam had been plugged with
debris since last spring, forcing the lake to rise and wash
over a spillway that state officials have deemed unsafe. But by
early February, water was again flowing out of the pipes,
allowing the lake to drop to a safe level, according to a
Shasta County Sheriff’s Office report.
A 48-inch increase in the bay’s water level in coming decades
could cause more than 100,000 Bay Area jobs to be relocated.
Nearly 30,000 lower-income residents might be displaced, and
68,000 acres of ecologically valuable shoreline habitat could
be lost. These are among the findings in the most detailed
study yet on how sea level rise could alter the Bay Area.
The $100 million Creek District project will improve streets,
add bridges and build a new park in the area adjacent to San
Marcos Creek, which goes through seasonal flooding during
rains. The Creek District project represents a milestone for
the city, which has struggled with annual flooding that has
limited access to the neighborhood during storms.
The Bureau of Reclamation and the California Department of
Water Resources are conducting exploratory work, including
clearing, excavation and controlled blasting of rock material
in the Basalt Hill area near B.F. Sisk Dam, located between Los
Banos and Gilroy, between 6 a.m. to 8 p.m. during April and
May. The exploratory findings on Reclamation lands will help
identify size and quality of granular material for the planned
Safety of Dams Modification project.
In March 2020 the most substantial review article to date
focusing on atmospheric rivers (AR) was published in the first
volume of the new journal Nature Reviews: Earth and
Environment. The article, led by Ashley Payne (Univ. of
Michigan) focuses on climate change dimensions, and was
prepared by an international group of scientists…
This year marks a significant milestone for the Interagency
Ecological Program (IEP) – now nine state and federal agencies
that first joined forces 50 years ago for cooperative
ecological monitoring and coordination in the Sacramento-San
Joaquin Delta and San Francisco Bay Estuary. As the IEP Lead
Scientist, I have been reflecting on who we are, how we’ve
evolved, and what we need to do to ensure we’re still working
collaboratively for another 50 years.
While California will not receive a soaking rain similar to
what occurred at the beginning of the week, residents across
the state can expect unsettled weather to stick around through
Wednesday.
Kolster’s latest book, L.A. River (GFT Publishing, 2019),
contains a series of images of the fifty-one-mile body of water
at various stages, from its headwaters in Canoga Park through
California’s biggest city to Long Beach, where it meets the
Pacific Ocean. For this project, Kolster used a
nineteenth-century photographic technique called the wet plate
collodion process, to striking effect.
California’s homeless crisis is one of the state’s top issues,
but the least discussed aspect of this broad problem is the
damage these homeless encampments cause to our levees. …
Large trenches dug into the side of levees impact the integrity
and stability of our protective barriers that are engineered to
keep our homes and community from flooding.
In February 2017, damage to the Oroville Dam’s spillways
prompted the evacuation of more than 180,000 people living
downstream along the Feather River. The raging muddy waters
also triggered an emergency decision to relocate millions of
young salmon from the Feather River Hatchery to the Thermalito
Annex Hatchery to be raised and held until river water
conditions improved. … Those fish survived and were later
released to the wild – helping fuel a record class salmon
harvest in the ocean two years later.
While studies attributing flood events to individual drivers
can be valuable, ignoring interdependencies among these drivers
as well as the effects of changing river morphology implicitly
promotes simplified views of the challenges inherent to flood
management. Further research must account for these
interdependencies…
Paul Detjens is driving us from his Martinez office to a
restoration site near the mouth of Walnut Creek on Suisun Bay,
a project he spearheads as an engineer for the Contra Costa
County Flood Control District. … The closer we get to our
destination, however, the more industrial the landscape
becomes, and the more improbable it seems that we’re in the
right place to realize this vision.
For decades, the discussion over flood mitigation in Petaluma
has almost exclusively centered around storm surges and heavy
rainfall events. Now, months after the city made its landmark
climate emergency proclamation, attention is shifting to focus
more on sea level rise and scientific projections that offer a
glimpse into what could be a sodden future.
Historically, we’ve always been able to predict these extremes
by looking at how often they occurred in the past. But a new
study published Wednesday in Science Advances reveals just how
many of those forecasts actually fall short. In just a decade,
the findings suggest, the climate has shifted so drastically
that the frequency of past extreme events is no longer a
reliable predictor.
Cindy Messer considers one of her greatest professional
accomplishments also the toughest experience in her 23-year
career. Messer was sworn in as chief deputy director of the
California Department of Water Resources the day after the
Oroville Dam crisis began in February 2017… But within
months, her boss retired, and she became acting interim
director for the recovery phase.
Now, Big Ag and the water agencies that do its water will want
to also divert streamflow during the winter wet season. For
folks who believe that any water “diverted” to the ocean is
wasted water, winter storm and snow-melt high flows have become
the target.
There is now plenty of evidence that as the atmosphere warms,
the planet is experiencing more wildfires. … Understandably,
much of the media surrounding these incidents focuses on the
immediate damage to forests, homes, people and wildlife, but
one potentially dangerous long-term impact has received less
attention – the effect of fires on water.
On March 12, 1928, three minutes before midnight, the dam broke
and sent a wall of water down San Francisquito Canyon through
Castaic Junction, Santa Clarita, Piru, Camulos, Bardsdale,
Fillmore, Santa Paula and Ventura before emptying into the
Pacific Ocean between Oxnard and Ventura. The dam collapse
created a 55-mile path of death and destruction, costing
millions of dollars and destroying many homes and other
property.
Recharge basins are becoming increasingly popular in
overdrafted regions in California, where water managers are
seeking solutions to balance groundwater supply and demand to
comply with the state’s Sustainable Groundwater Management Act
(SGMA).
Already a well-regarded landscape and portrait photographer,
Bay set out to bring more attention to the issue. The avid
surfer admits that he initially wasn’t sure how best to convey
what he saw as an environmental emergency. Then, one day, he
says he was visiting the Tijuana River mouth and stumbled upon
an idea.
The public release of this product, and the underlying research
supporting it, is part of a joint partnership between CW3E and
NASA JPL, sponsored by the California Department of Water
Resources, to improve the two-week to two-month lead time of
forecasts, known as subseasonal-to-seasonal (S2S) forecasts.
The aim of these improved forecasts of atmospheric rivers and
precipitation is to benefit western U.S. water resource
management.
Much-needed snow will blanket California’s Sierra Nevada high
country this weekend into next week, bringing hope of a
“Miracle March” that could replenish vital, water-providing
snowpack after a record-dry February.
Spurred by a recent change in federal flood zone maps and a
desire to prepare for rising seas, Foster City is in the
process of raising its levees by 1 to 7 feet. Residents voted
in 2018 to tax themselves in order to pay for the estimated $90
million upgrade. When the project breaks ground later this
year, the city of 35,000 people will vault to the forefront of
urban adaptation in the Bay Area to rising waters.
We’re getting better when it comes to the L.A. River. Ten years
ago, most of us didn’t even know that L.A. even had a river.
… It’s hit a few bumps along the way (including the 1936
Flood Control Act that channelized it with concrete walls) —
but now, you not only can get to the re-wilded parts of the Los
Angeles River, but you can get onto them, too (for a part of
the year)!
The federal government is giving local officials nationwide a
painful choice: Agree to use eminent domain to force people out
of flood-prone homes, or forfeit a shot at federal money they
need to combat climate change.
While the bulk of the $175 million goes toward addressing
seepage issues along San Joaquin River levees, a dry levee in
southwest Manteca plays a key role in making sure potential
breaks along the San Joaquin south of RD-17 or levee failures
on the Stanislaus River don’t flood portions of either city.
State and federal leaders came together to tour the Salton Sea
and understand the impending health issues the public continues
to face. NBC Palm Springs joined officials to get a glimpse of
what is being done to help restore an area that was once a
relaxing summer destination.
As the waters of Lake Mead have risen and fallen over the
years, the remains of the village of St. Thomas have
reappeared, then disappeared again, only to re-emerge years
later. It’s a sort of Brigadoon for the southwestern United
States.
The storm— fed by a plume of subtropical water vapor at the
lower and middle levels of the atmosphere — could bring 1 to 3
inches of rain to the area through at least Wednesday. … The
heaviest rain is expected throughout Tuesday, upping the
chances for both an ugly morning and evening commute.
U.S. Rep. Grace Napolitano has convinced the U.S. Army Corps of
Engineers to spend $393.2 million to fix the Whittier Narrows
Dam, but she still has to persuade Congress to appropriate the
money. With other congressional members at her side on Friday,
Napolitano, D-El Monte, began her effort with a tour of the dam
near Lincoln Avenue in Montebello.
We expect most of Southern California, including the Los
Angeles Basin and San Diego metro area, as well as parts of
Arizona, to pick up at least an inch of rain through Thursday.
Some heavier amounts in higher terrain on southern- and
southwestern-facing slopes are possible. Flash flooding of
flood-prone, low-lying streets, freeways and normally dry
washes and arroyos is possible in some areas.
State and federal leaders came together to tour the Salton Sea
and understand the impending health issues the public continues
to face. NBC Palm Springs joined officials to get a glimpse of
what is being done to help restore an area that was once a
relaxing summer destination.
As sea levels rise, so do the waters in the bay, which connects
to the Pacific Ocean through the Golden Gate. That relationship
between rising ocean levels and rising bay levels is well
known. What is less obvious is that groundwater levels are
rising as well, adding another variable to the region’s
equation of increasing flood risk.
The South Bay Salt Pond Restoration Project is the largest
tidal wetland restoration project on the West Coast. When
complete, the Project will restore 15,100 acres of industrial
salt ponds to a rich mosaic of tidal wetlands and other
habitats. The Project is intended to restore and enhance
wetlands in South San Francisco Bay while providing for flood
management, wildlife-oriented public access, and recreation.
At the January meeting of Metropolitan’s Bay Delta Committee,
Program Manager Randall Neudeck updated the committee on some
of the projects and activities happening underway the Yolo
Bypass.
The U.S. Army Corps of Engineers Sacramento District awarded a
$64 million construction contract on February 14 … for nearly
three miles of levee improvements along the Sacramento River
East Levee. This project will kick off major construction in
the region to complete approximately $1.5 billion of work to
upgrade levees along the American and Sacramento Rivers as well
as widening the Sacramento Weir and Bypass.
Valley Water in Santa Clara, Calif., doesn’t fully agree with a
Feb. 20 directive from the Federal Energy Regulatory Commission
(FERC) to drain its Anderson Dam as the water district waits to
begin upgrades to the structure near the Calaveras Fault.
The islands of the western
Sacramento-San Joaquin Delta are sinking as the rich peat soil
that attracted generations of farmers dries out and decays. As
the peat decomposes, it releases tons of carbon dioxide – a
greenhouse gas – into the atmosphere. As the islands sink, the
levees that protect them are at increasing risk of failure, which
could imperil California’s vital water conveyance system.
An ambitious plan now in the works could halt the decay,
sequester the carbon and potentially reverse the sinking.
A federal order to drain Silicon Valley’s largest drinking
water reservoir has thrown the region into disarray, with
multiple agencies pointing fingers at each other and some local
leaders fearful their cities could run out of water, not this
summer but the following one.
A Simon Fraser University-led research team has found
significant evidence that human activity in estuaries is
impacting juvenile Pacific and Atlantic salmon. The team’s
review of 167 peer-reviewed studies (from an initial search of
13,000) identified negative impacts from several stressors,
including the effects of flood-protecting tidal gates,
pollution and habitat modification.
For years, city auditors warned elected leaders that San
Diego’s stormwater needs were being dramatically underfunded,
leaving the city vulnerable to lawsuits and hefty fines from
state regulators. Still, the mayor’s office has yet to take on
the political challenge of securing enough new funding to fix
the situation, something that would likely require a
voter-approved tax hike.
California’s coast is truly a treasure for residents and
visitors alike. Sadly, rising seas are washing away our beach,
and for every inch of sand lost, our opportunities for joy —
and our economic future — similarly shrink.
At a time when Del Mar, Pacifica and other coastal cities are
fighting to defend their homes and roads from the rising sea,
Marina has embarked on a path less traveled. Here in this Army
turned university town, residents are learning how to adjust
with the ocean as the water moves inland.
The San Francisco Bay Conservation and Development Commission
has created an online mapping tool known as the Bay Shoreline
Flood Explorer that allows you to see the impacts of rising
oceans if precautions aren’t taken. You can see how much of the
shoreline is inundated at 12 to 144 inches of rise, as well as
the impacts of storm surges and exceptionally high tides that
can temporarily cause water levels to rise.
By 2030, the projected sea level combined with a particularly
nasty storm event could flood nearly everything west of Highway
1 in Stinson Beach: 590 parcels, 430 buildings and several
miles of road. By the middle of the century, every high tide
will bring flooding, and the roadways will likely need to be
altered to maintain access to the low-lying town.
The state Department of Water Resources said Thursday the
Federal Emergency Management Agency agreed to cover
approximately $300 million in repair costs the agency had
previously denied. … All told, the state now expects to be
reimbursed for approximately $750 million of the $1.1 billion
cost of the crisis…
The town of Fairfield is moving forward with a project to
better protect its wastewater treatment plant from large storms
and sea level rise. According to a press release from First
Selectwoman Brenda Kupchick, the project will cost a total of
$7.4 million but $3.33 million will be funded through a grant
from the United States Department of Housing and Urban
Developments’ (US HUD) Community Development Block Grant -
Disaster Recovery.
An investigation by NBC Bay Area has found more than two dozen
major construction projects worth billions of dollars – either
recently completed or still in development or – located in
areas along San Francisco Bay that scientific computer models
show will be flooded or surrounded by water by 2050 or earlier.
The Colusa Groundwater Authority, the California Department of
Water Resources and The Nature Conservancy have partnered to
conduct an on-farm, multi-benefit demonstration program for
growers in two select project locations around Colusa County.
A long-planned Pajaro River flooding prevention project has
secured its first federal funding for engineering and design.
Earlier this week, Rep. Jimmy Panetta announced that the Pajaro
River Flood Risk Reduction Project had been provided $1.8
million from the U.S. Army Corps of Engineers 2020 work plan
budget.
Local reservoirs and municipal water supplies might become so
polluted from the fires that the current water supply
infrastructure will be challenged or could no longer treat the
water. … But most of the fire-prone areas in North America
lack large-scale vulnerability assessments of their municipal
water supplies…
Partnering with the state of California and the Sacramento Area
Flood Control Agency, the Army Corps of Engineers is overseeing
a $383 million project to raise the height of Folsom Dam. At a
site along Folsom Lake, Rocklin-based Odin Construction
Solutions is tackling the first phase of that effort, raising
what’s known as Dike 8.
Two sprawling metropolitan areas offer a glimpse of the future.
One rich, one poor, they sit on opposite sides of the Pacific
Ocean: the San Francisco Bay Area (population 7 million) and
metropolitan Manila (almost 14 million). Their history, their
wealth, and the political and personal choices they make today
will shape how they fare as the water inevitably comes to their
doorsteps.
More than $188 million in flood risk management work for
Northern California were outlined in two separate budget
releases on February 10, adding to an already robust Sacramento
District workload. … Continued upgrades to Natomas Basin
levees leads the way with $131.5 million.
Recently, the Department of Water Resources launched a new
safety initiative called Headwaters to Floodplains, which
applies an integrated regional watershed management approach to
the realm of flood management. … At the January meeting of
the California Water Commission, Mike Mierzwa from DWR’s Office
of Floodplain Management briefed the Commission members on the
new initiative.
Climate change is spurring a new, deep dive into a complex,
little-studied weather system blamed for creating billions of
dollars in flood damage across the western U.S. Atmospheric
rivers are narrow ribbons of concentrated moisture that
originate in the Pacific and can flow thousands of miles before
dropping rain and snow on land.
Like last year, the White House wants to cut all non-defense
discretionary spending by 5%. Non-nuclear spending at the
Department of Energy would be cut 29%, EPA would be reduced by
27%, the Army Corps of Engineers would drop 22% and the
Interior Department would fall by 13%.
More than dust-filled air could be plaguing residents around
the quickly evaporating Salton Sea in Imperial Valley.
University of California, Riverside research shows toxic
aerosols could also be filling the air. The problem has to do
with agricultural fertilizer in the Salton Sea wetland area.
Wildfires can have many detrimental impacts on water supplies.
The effects can last for multiple decades and include drinking
water pollution, reservoir sedimentation, flash floods and
reduced recreational benefits from rivers. These impacts
represent a growing hazard as populations expand, and
communities encroach onto forest landscapes.
The fate of Foster City and the rest of the Bay Area was front
and center last week as state lawmakers grappled with the many
threats California must confront as the ocean pushes farther
inland. A special committee of state lawmakers gathered — for
the second time in two months after years without meeting — to
reignite a much-needed discussion on how to better prepare
communities up and down the coast…
The group called Water Audit California has used lawsuits to
pry water releases from local reservoirs for fish and has
threatened a groundwater-related lawsuit against Napa County.
The group last week co-sponsored a forum to suggest another
way.
To adequately prepare for the impacts of sea level rise,
regional collaboration must be enhanced and a considerable
investment by the state is needed and soon, according to the
experts and officials who spoke at a hearing on sea level rise
Friday in Foster City.
This means that the numbers used for the three gages in Tehama
County have different levels for what is considered flood
monitor stage when there is the possibility of flooding, as
well as the level that is considered to be flood stage, said
Cindy Matthews, a senior service hydrologist with the National
Weather Service.
When the now-historic finger piers along San Francisco’s
Embarcadero were built, you can bet the builders never expected
that a century later, there would be engineering studies on how
to prepare the gaunt sheds for seas that could rise nearly 7
feet.
Researchers at Virginia Institute of Marine Science issued
their annual report card which looked at tide-gauge records for
32 coastal locations, stretching from Maine to Alaska. … The
Bay Area was home to two of those stations: one in Alameda and
one in San Francisco, which both recorded a year-over-year
rise.
“A lot of cities not at risk of sea of level rise will
experience the effect of it,” says Bistra Dilkina, a computer
scientist at the University of Southern California, who led the
study. “This will require an adjustment in terms of the
[increased] demand on the cities’ infrastructure.”
The Air Force research crew on the WC-130J Super Hercules
airplane was cruising at 28,000 feet over the Pacific Ocean,
preparing to deploy 25 weather-sensing devices over a long band
of water vapor known as an “atmospheric river” when the hazards
of air travel got in the way of science.
In November 2018, more than two-thirds of voters passed Measure
W, a comprehensive plan to address how we capture water and how
to reduce our reliance on imported water. Now called the Safe
Clean Water Program, this annual 2.5 cent per impervious square
foot tax for all non-exempt property owners will fund over $250
million dollars annually to build and maintain projects that
capture rainfall and storm water…
Congressional leaders unveiled a transformative vision of
moving America and the environment forward by investing in 21st
century infrastructure. The Moving Forward Framework outlines a
five-year plan for bold investment in transportation and water
infrastructure.
Plans to replace the Lake Wohlford dam are now on hold as
Escondido investigates other, less expensive options because
the projected cost of the project has escalated to more than
$50 million. It was nearly 13 years ago when state inspectors
determined that the top quarter of the dam might liquefy in the
event of a major earthquake…
An audit of 650 California dams considered hazardous found that
only a small fraction have completed emergency plans required
after the Oroville Dam spillway collapsed three years ago and
forced the evacuation of nearly 200,000 people.
The situation in Australia illustrates a growing global
concern: Forests, grasslands and other areas that supply
drinking water to hundreds of millions of people are
increasingly vulnerable to fire due in large part to hotter,
drier weather that has extended fire seasons, and more people
moving into those areas, where they can accidentally set fires.
The vast majority of California’s major dams aren’t adequately
prepared for an emergency. Three years after the near-disaster
at Oroville Dam, only 22 state-regulated dams have finalized
emergency plans — out of 650 major dams that are required by
law to have plans in place — according to a report issued
Thursday by State Auditor Elaine Howle.
On Sunday, about 300 people filed into the Fleischmann
Auditorium at the Santa Barbara Museum of Natural History in
attendance of a public conversation regarding the aftermath of
the Thomas Fire in December 2017 and January 2018, and the
Montecito mudflows which ensued following a deluge of rain
which extinguished the fires on Jan. 8, 2018.
The 53rd Weather Reconnaissance Squadron’s mission over the
coming months: C-130s — departing from the U.S. Coast Guard Air
Station Barbers Point in Hawaii; or from Travis Air Force Base
in Fairfield — will each release 25 sensors called dropsondes
into a forming atmospheric river system. As the dropsondes fall
from 25,000 feet along two V-shaped paths covering hundreds of
miles, they send back readings on the gathering storm’s water
vapor content, temperature, wind speed and direction.
The multi-year, multi-agency effort to transform the lower
landscape of the Carmel River into a natural floodplain took a
massive step forward Jan. 28 when the Monterey County Board of
Supervisors voted unanimously to approve the project’s final
environmental impact report.
The preferred alternative to address seismic safety concerns at
the structure, commonly known as San Luis Dam, involves raising
the crest of the dam by 12 feet, adding shear keys to prevent
slippage and construction of downstream berms to strengthen the
structure… Work on the project is expected to begin in August
2021
Since 2016, the Yolo County Resource Conservation District has
been leading a project to improve flood escape for wildlife,
implement agriculture-compatible restoration, and engage the
public. This effort will create five miles of cover for
wildlife escaping flood events, enhance year-round habitat for
migratory birds, pollinators and other wildlife…
Large woody debris, sediment and other material washed into the
wetland from the fire-scarred foothills above Carpinteria
during a powerful storm on Jan. 9, 2018. Materials poured from
Santa Monica and Franklin creeks into the marsh. The Thomas
Fire burned more than 28,000 acres in Ventura and Santa Barbara
counties, and the inferno was followed three weeks later by the
flash flooding and debris flows.
By analyzing more than two decades of data in the western U.S.,
scientists have shown that flood sizes increase exponentially
as a higher fraction of precipitation falls as rain, offering
insight into how flood risks may change in a warming world with
less snow.
The fast-melting ice in the Arctic may be the primary cause of
extreme weather across the globe, including some of the most
violent, damaging storms to hit the Bay Area and California, a
Scripps Institution of Oceanography study has found.
My husband and I fell in love a couple of months ago. It was
with a house by a river. This is the river that was a stone’s
throw away when we were engaged 13 years ago. The river we’ve
brought our children to every summer of the past decade. The
river I love to paint, paddle, swim in and stare at. This place
could be our forever home.
For decades, California’s coastal aquifers have been plagued by
invading seawater, turning pristine wells into salty ruins. But
the state’s coastal water agencies now plan to get more
aggressive in holding back the invasion by injecting millions
of gallons of treated sewage and other purified wastewater deep
underground.
In an effort to aggressively combat the impacts of climate
change on low-lying areas of the Bay Area, the San Francisco
Regional Water Quality Control Board today proposed changes to
the region’s Water Quality Control Plan to better protect
shorelines from sea level rise, storm surges and flooding.
The city of Santa Maria is set to begin a native-plant
restoration project on about 150 acres of city-owned land in
the Santa Maria Riverbed, a spokesman announced Wednesday. The
work is slated to begin this week, east of the Highway 101
bridge.
Last month, high tides in San Francisco Bay washed up onto the
shoreline of a large former pharmaceutical company in Richmond.
A few hours later, the outgoing tide pulled
contamination—including pesticides, toxic chemicals and
radioactive waste—off the industrial land and into the Bay.
Competing plans for “climate resiliency” bonds come from three
sides of state government: the Assembly, the Senate and Gov.
Gavin Newsom. … Resilience projects are aimed not so much at
preventing sea level rise, wildfires, droughts and extreme
heatwaves, but helping people and communities survive.
New research recently published in Science Advances found that
atmospheric rivers accounted for 84% of flood damages, or $42.6
billion, across the western United States from 1978-2017.
Combined with a safer spillway completed in 2017, federal dam
officials say the flood-prone region is on its way to 300-year
or more flood safety, meaning there will only be a one-in-300
chance in any given year that the combination dam and
downstream levee system will fail.
Santa Barbara County and the U.S. Army Corps of Engineers have
issued notices of violation to Southern California Edison for
its dumping of debris and rocks into Mission Creek near the
Inspiration Point hiking trail. … Mission Creek is Santa
Barbara’s largest creek, flowing from the hills of Mission
Canyon through the heart of downtown and to the Westside. It is
home to steelhead trout among other wildlife.
At a panel discussion hosted by California Natural Resources
Secretary Wade Crowfoot, the panelists discussed how by
spreading out and slowing down water across the landscape can
provide multiple benefits year-round by allowing farmers to
cultivate the land during the spring and summer, and provide
habitat for fish and wildlife in the fall and winter months.
The conservation district is a special governmental entity that
has been recharging the local groundwater aquifers for 100
years. The Wash Plan will implement water conservation, supply
infrastructure, transportation and aggregate production while
protecting threatened species.
Weak and problematic levees are a big reason why there was so
much destruction when Hurricane Katrina hit New Orleans in
2005. It cost Louisiana and Mississippi more than $150 billion
dollars and killed more than 1,800 people. But could something
like this happen in the Sacramento region? The answer CapRadio
heard from levee experts is yes, Sacramento could see that type
of flooding, but there are a lot of things that lower that
risk.
Federal crews have begun a five-year effort to raise the height
of the dam by 3.5 feet to increase flood protection for 440,000
downstream residents in metropolitan Sacramento,
A month-long, emergency construction project has moved the
Merced River away from Hills Ferry Road. Merced County
Supervisor Lloyd Pareira said the road was in danger of being
washed out due to erosion which was creeping ever closer to the
shoulder at a bend where the Merced River flows into the San
Joaquin River…
Construction projects aimed at providing flood protection to
thousands of Mountain View properties is over budget and more
than a year behind schedule. The Santa Clara Valley Water
District’s board of directors signed off on another round of
funding in November for $4.7 million, aimed at offsetting cost
overruns that ate through most of the project’s contingency
fund.
President Trump yesterday touted his repeal of key Clean Water
Act regulations as more than three dozen current and former
government officials called for an investigation into the
scientific basis of his forthcoming replacement rule.
Praising progress on a long-awaited Pajaro River flood
prevention project, the Monterey County Board of Supervisors
reviewed a proposed regional flood prevention agency that would
oversee construction and operation of the $393.7 million
initiative. By a unanimous vote, the county board directed
staff to finalize a joint powers agreement at the center of the
proposed Pajaro Regional Flood Management Agency.
Inside the dome on top of the Penitencia Water Treatment plant
in San Jose is the first permanent x-band weather radar system
in the Bay Area. “The radar system that you see up there is
collecting crucial data as we speak,” said Norma Camacho, CEO
of Valley Water.“ Camacho joined the San Francisco P.U.C.,
Sonoma Water and other partners in unveiling the new system,
which will improve weather forecasting across the region.
The issue, which came in front of the county supervisors
Tuesday, has been “put on pause,” she said, until more
information is available. Specifically, the supervisors are
waiting to make a decision on the moratorium until they know
how many homes have been built in the area in the past two to
three years, and how many more are slated to be built.
Lathrop — like any other community — has a homeless problem.
But unlike other communities, the homeless problem could
imperil the community. That’s because a number of homeless in
the Lathrop area have taken to digging holes into the base of
levees designed to hold back the San Joaquin River at high
water levels.
The Ono Community Services District has been trying since last
summer to get federal and state money to pay for repairs to the
100-year-old dam, which has holes in its spillway and no other
way to release water after its outlet pipes became plugged with
dirt and debris last spring.
A climate research organization will offer access to a risk
model that predicts the probability of flooding for homes
across the United States, giving the public a look at the data
institutional investors use to gauge risk.
On a stretch of Sunset Beach where the overfull Huntington
Harbour is higher than Pacific Coast Highway, a pump is ready
to keep the road from flooding. In Long Beach, seawater has
overtaken Bayshore Beach. The water laps against Balboa
Island’s recently elevated seawall and it crashes onto the
boulders protecting beachfront homes in Capistrano Beach.
The river barreled over, sinking the streets of Sacramento in
6-feet of water. It was streaming fast, flooding the hotels and
houses of Gold Rush migrants hoping to find fortune in the
bountiful land of California.
The courtroom battle over 9,000-acre Staten Island is the
latest conflict in the Delta over farming, wetlands and aging
levees that, besides preventing flooding, preserve a way of
life on the man-made islands. The suit, filed in 2018 by a
group called Wetlands Preservation Foundation, accuses the
California Department of Water Resources and the Nature
Conservancy of failing to adequately protect wildlife or employ
sustainable agricultural practices on the property…The stakes
are high because the channels, islands and marshes that make up
the Delta are a catch basin for most of California’s drinking
water.
On the anniversaries of the disasters — one on Jan. 10, 2005,
and the other on Jan. 9, 2018 — the two seaside communities are
still grappling with hard decisions stemming from the
destruction and loss of life. Yet they’ve made very different
progress along their paths to recovery.
When most think of the possible impacts of sea level rise, they
think of coastal flooding and the growing risks to shore-based
infrastructure — but there’s another sea level rise-related
threat that is much less talked about. As sea level rises, so
too will groundwater levels in coastal aquifers, and some
recent studies have concluded that in some coastal areas, as
much or more land could flood as a result of rising groundwater
tables than will flood directly from rising tides.
The increasing spills that have polluted the Tijuana River Valley
and ocean off Imperial Beach have resulted in frustration and
anger in recent years, but also triggered broad political
collaboration at the local, state and federal level that has put
the region on the brink of real action.
Nobody seems to know why a rope that caused a nearly weeklong
boil-water advisory in Poway was there in the first place. The
rope had been hanging on a wall in a vault adjacent to the
clearwell drinking water reservoir and a stormwater drain. When
heavy rains on Nov. 28 and 29 caused the stormwater to surge
and back up into the vault, somehow the rope became lodged in a
swing gate allowing muddy water to leak into the reservoir…
Sites Reservoir will receive $6 million from the federal
government as part of a bipartisan spending bill that was
signed by President Trump at the close of 2019.
When lawmakers in the House of Representatives approved the
Trump administration’s new trade deal with Mexico and Canada
last month, they authorized $300 million to help fix failing
sewer systems that send raw sewage and toxic pollution flowing
into rivers along the U.S.-Mexico border. … But environmental
groups are condemning the new United States-Mexico-Canada
Agreement, or USMCA, saying it fails to establish binding
standards to curb pollution in Mexico’s industrial zones.
King tides, a naturally occurring phenomenon that received a
common name only a decade ago, are heading to California
shorelines this weekend — and with them, a series of public
events intended to show people the dangers posed by sea level
rise.
While considerable progress has been made to improve flood
management in the Central Valley, the vast region still faces
significant flood risk. … It has been estimated that
California needs to spend at least $34 billion to upgrade dams,
levees, and other flood management infrastructure.
Accomplishing these upgrades within 25 years would mean
spending $1.4 billion per year—roughly twice the current level
of investment.
These changes will be substantial, multi-faceted, and often
rapid. Some changes will be irreversible. Many changes are
inevitable. Some will say today’s Delta is doomed. It will be
important for California to develop a scientific program that
can help guide difficult policy and management discussions and
decision-making through these challenges.
It started with last month’s heavy rains that brought an
unprecedented volume of debris tumbling down Tijuana’s Matadero
Canyon: old mattresses, used furniture, discarded construction
material. That led to a clogged storm drain by the border
fence, authorities said, and the flooding of a nearby sewage
pump station. The resulting pool of trash and
sewage-contaminated water has now been raising fears in San
Diego.
Nearly two months after the Kincade fire was fully contained in
northeastern Sonoma County, Santa Rosa is struggling with an
after-effect of the massive blaze: its wastewater disposal
pipeline at The Geysers was disabled for six weeks, backing up
the Sebastopol-area plant with about 400 million gallons of
treated wastewater.
Department of Water Resources is preparing Oroville Dam’s
primary spillway for use this winter season. The reconstructed
spillway was completed this spring and used for the first time
in April since the 2017 spillway crisis threatened 188,000
residents downstream.
The low-lying island, as well as neighboring Yerba Buena
island, are also the site of a multibillion-dollar neighborhood
development. The project calls for 8,000 new homes and condos
that could house more than 20,000 people, 500 new hotel rooms,
and over 550,000 square feet of commercial space. But how will
climate change affect these plans?
Atmospheric rivers are long, narrow bands of moisture that
descend from the tropics to higher latitudes like from Hawaii
to California. They used to be referred to mostly as a
pineapple express. … A study by researchers at the Scripps
Institution of Oceanography suggests that one of these events
could cause catastrophic damage to California and its economy
and thus the nation’s economy.
When state lawmakers wondered what they should be doing to
prepare for rising sea levels, they asked their research
experts to dig into the issue. The report is out, and the
conclusions isn’t what one might expect.
Despite efforts over decades, the Delta’s delicate ecosystem
and species continue to decline. … At the 2019 ACWA Fall
Conference, Vice Chair of the State Water Board DeDe D’Adamo,
Department of Water Resources Director Karla Nemeth, and Delta
Stewardship Council Susan Tatayon gave their thoughts on moving
forward in the Delta in this panel discussion moderated by the
Public Policy Institute of California Water Policy Director
Ellen Hanak.
Site preparation activity for upcoming levee improvements along
the Sacramento River east levee will begin this week, kicking
off a five-year U.S. Army Corps of Engineers project to upgrade
levees throughout the Sacramento region and widen the
Sacramento Weir.
Despite efforts over decades, the Delta’s delicate ecosystem
and species continue to decline. … At the 2019 ACWA Fall
Conference, Vice Chair of the State Water Board DeDe D’Adamo,
Department of Water Resources Director Karla Nemeth, and Delta
Stewardship Council Susan Tatayon gave their thoughts on moving
forward in the Delta in this panel discussion moderated by the
Public Policy Institute of California Water Policy Director
Ellen Hanak.
A Placerville development company that illegally discharged
sediment and stormwater from its construction site has agreed
to pay $171,000 in a settlement with the Central Valley
Regional Water Quality Control Board,
U.S. Sen. Kirsten Gillibrand on Tuesday called for more federal
money and oversight to shore up the nation’s aging dams
following an Associated Press investigation that found scores
of potentially troubling dams located near homes and
communities across the country.
Passing the new North American free trade agreement would mean
millions of dollars to help upgrade sewage infrastructure on
the border, say the agreement’s backers. But an environmental
group and a local organization on the U.S.-Mexico border say
it’s not enough.
Nitrogen pollution, largely from burning fossil fuels,
industrial agriculture and wildfire can reduce drinking water
quality and make air difficult to breathe. Thanks to a $1.1
million grant from the National Science Foundation, we will
soon have a better understanding of how much nitrogen arid
ecosystems can absorb before they produce negative effects.
Researchers recently created a scale, similar to the one used
for hurricanes, to categorize the strength and potential
impacts of atmospheric rivers. This system could help
communities prepare and respond to floods, and aid water
managers calculating how much water will be available in any
given year.
Lower Butano Creek had been clogged by a mile-and-a-half long
plug of sediment where the stream once flowed through the marsh
to meet the ocean. … In June, the resource conservation
district, in partnership with California State Parks and the
National Oceanic and Atmospheric Administration, embarked on a
$7 million restoration project to remove the sediment dam
blocking Butano Creek.
During the 2019 Flood Prevention Authority Legislative
Conference, the U.S. Army Corps of Engineers presented a
cost-benefit analysis in support of what is estimated to be
about a $394 million project, an effort which would reduce
significant flood risk to the city of Watsonville, Pajaro in
Monterey County and adjacent agricultural areas…
Researchers from the University of California’s Scripps
Institution of Oceanography, in partnership with the Yuba Water
Agency and California Department of Water Resources, will
launch the first in a series of weather balloons near
Marysville Thursday. The research is aimed at better
understanding atmospheric river events, or “epic storms,” that
have created deadly flood events in previous generations.
A state inspection found 12 flaws in Poway’s drinking water
delivery system less than three months before the city’s
precautionary boil water advisory. City officials remain
adamant that the issues raised by the inspection had nothing to
do with the nearly week-long advisory that ended Dec. 6.
We’ve heard this about earthquakes – it’s not a matter of if
but when the big one will hit. Well, some researchers also say
it’s a pretty similar situation for a major flood in the area.
A research project currently being undertaken at SoCal and
NorCal UC campuses is looking at how flooding could impact the
area, including socioeconomic issues.
