A collection of top water news from around California and the West compiled each weekday. Send any comments or article submissions to Foundation News & Publications Director Chris Bowman.
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A new study by Cal State Fullerton researchers shows evidence
of two epic floods that occurred within the past 500 years in
Southern California during the Little Ice Age. Their
research is the first-ever, land-based, flood-event evidence
from 1450 to 1850 — a documented period of above-average
wetness in Southern California, said Matthew E. Kirby,
professor of geological sciences. According to scientists,
floods — not earthquakes — represent California’s single most
significant socioeconomic natural hazard risk.
… Climate models predict that the frequency of
large flood-producing precipitation events will increase in the
21st century due to climate change.
A rusty red color in Lake Merritt that left lake stewards
scrambling to sample the water on Mar. 7 has tested positive
for the same algae that caused the devastating harmful algal
bloom in 2022. On Friday, lake stewards sent water
samples to labs run by the California Department of Public
Health and San Francisco Bay Regional Water Control Board.
Unofficial field testing initially detected no harmful algae.
However, lab testing confirmed over the weekend the presence of
Heterosigma akashiwo, a type of algae often associated with
harmful blooms. Harmful algal blooms, or HABs, occur when
certain types of algae grow rapidly and release toxins, lower
oxygen levels, and cause other changes in water quality that
can kill fish and other marine creatures.
The Friant-Kern Canal was called out specifically as one of the
reasons the state should take over pumping in the Tule
groundwater subbasin in Tulare County. The recommendation was
contained in a recently released staff report to the Water
Resources Control Board. While the report stated groundwater
management plans covering the subbasin didn’t adequately
address subsidence and continued depletion of the aquifer and
degradation of water quality in general, it also noted the
significant harm to the Friant-Kern Canal, which brings water
152 miles south from Millerton Lake to Arvin. Excessive
overpumping caused land beneath a 33-mile stretch of the
Friant-Kern Canal to collapse, creating a sag that reduced the
canal’s carrying capacity south of Pixley by 60%.
California’s fishing industry is bracing for another bad year
as federal managers today announced plans to heavily restrict
or prohibit salmon fishing again, after cancelling the entire
season last year. The Pacific Fishery Management Council
today released a series of options that are under
consideration, all of which either ban commercial and
recreational salmon fishing in the ocean off California or
shorten the season and set strict catch limits. The council’s
decision is expected next month; the commercial season
typically begins in May and ends in October. … [P]opulations
are now a fraction of what they once were — dams have
blocked vital habitat, while droughts and water diversions have
driven down flows and increased temperatures, killing large
numbers of salmon eggs and young fish.
In California and across the country, household water rates
have been rising as utilities invest to upgrade aging
infrastructure, secure future supplies and meet treatment
standards for clean drinking water. As monthly water bills
continue to increase, growing numbers of customers have been
struggling to pay. New federal legislation would establish a
water assistance program to help low-income families pay their
bills and prevent shutoffs of water service. The bill,
introduced by Democratic Sen. Alex Padilla, would make
permanent a federal program that Congress authorized in 2020
during the COVID-19 pandemic. The program provided more than $1
billion in assistance, but it’s expiring.
Monday marked a key cutoff time by which Colorado River states
had been tasked with proposing a consensus-based plant for
long-term water conservation in the overtaxed system. But
with the arrival of that deadline, set by the Department of the
Interior’s Bureau of Reclamation, no such agreement was on the
table. Instead, the river system’s two main contingents — the
Upper and Lower basins — submitted their own competing
plans. The proposals pertained to an upcoming update of
the rules — known as the 2007 Interim Guidelines for Lower
Basin Shortages — that govern where, when and how much the
seven basin states must conserve water from the 1,450-mile
river.
California has set ambitious climate goals, including phasing
out the use of fossil fuels and becoming carbon neutral by
2045. Our guest today is here to talk about the role nature can
play in meeting those goals. Laurie Wayburn is the co-founder
and president of the Pacific Forest Trust and the chair of the
California Natural and Working Lands Expert Advisory Committee.
She was also the lead author of a recent report suggesting the
state should invest “as much in nature-based climate solutions
as it has in clean energy and transportation.” With proper
forest management, California could capture 400 million tons of
carbon each year, lower wildfire risk and vastly improve flood
protection in the state.
Just south of Dos Rios Ranch, a much-praised effort at river
restoration, another such project is taking root. It will add
about 380 acres of floodplain and other habitat to the 1,600
acres at Dos Rios. They are near the confluence of the Tuolumne
and San Joaquin rivers, about eight miles southwest of Modesto.
The state-funded project, totaling about $20.8 million, is on
the former Hidden Valley Dairy. Annual feed crops are giving
way to oaks, cottonwoods, willows and other native plants. The
floodplain will take on high river flows that otherwise could
threaten nearby Grayson and downstream towns. The standing
water could recharge the aquifer below for use during droughts.
The place could offer food and shelter to fish, birds, mammals
and other creatures.
As floodwaters receded from the streets of southeastern San
Diego on Jan. 22, two things began to happen. Several local
nonprofits — not trained in disaster response — set up a victim
assistance center at the Jackie Robinson Family YMCA. At the
same time, county and city officials had a series of extreme
miscommunications that delayed the opening of a government-run
assistance center within city limits for nearly two weeks,
according to letters obtained by Voice of San Diego.
Normally in the wake of a disaster, government officials open
what they call a Local Assistance Center near the disaster
site. These assistance centers connect survivors with
government and non-government resources. A survivor could get
anything from a new driver’s license to food or unemployment
benefits.
A powerful winter storm buried the Sierra last weekend, with
wet weather continuing for days in the Bay Area and Central
Coast. Thunderstorms Wednesday drenched Salinas, dropping
an entire inch in just 25 minutes. After historic weather last
year, intense California storms have persisted this winter,
with strong downpours causing widespread flooding in San Diego
and damaging landslides in places like Los Angeles. Many
ingredients contribute to extreme storm activity, but
scientists agree that climate change is already amping up
winter rains — and may bring even wilder weather in the
future.
Cannon Michael has been re-elected as the chairman of the San
Luis & Delta-Mendota Water Authority. The San Luis &
Delta-Mendota Water Authority announced Michael’s re-election
on Monday. The big picture: Michael is the president
of family-owned Los Banos farming operation Bowles Farming
Company. He also serves as the chair of the Henry Miller
Reclamation District, as a board member of the Water Education
Foundation and as an advisory board member of the Public Policy
Institute of California.
The California State Water Resources Control Board issued a
$6.6 million grant for a city of San Luis Obispo project
intended to clean up contaminated groundwater. Presently, the
city does not use groundwater for its drinking water supply.
SLO’s potable water supply comes from Whale Rock Reservoir,
Santa Margarita Lake and Nacimiento Reservoir. City
officials have sought to diversify the water supply in an
attempt to achieve “greater drought and climate change
resiliency.” Previously, contamination from
tetrachloroethylene, or PCE, served as a barrier to doing so.
PCE is a toxic chemical produced by dry cleaning and industrial
activities, which took place in the city decades ago. The
cleanup project will consist of the city building two new
groundwater supply wells that are expected to be fully
operation in 2026.
A pair of new state bills are looking to crack down on some of
the polluters fueling the cross-border sewage crisis that has
hobbled access to San Diego County’s southernmost beaches for
decades. Senate Bill 1178 and Senate Bill 1208, introduced on
Monday by State Sen. Steve Padilla, add regulations to water
discharges for large corporations, as well as prevent water
authorities from issuing additional permits for waste releases
into areas in the Tijuana River system.
This month, several wildlife conservation groups petitioned the
California Fish and Game Commission to list these owls as
endangered or threatened under the California Endangered
Species Act. … [Chair of the environmental studies department
at San Jose State University Lynne] Trulio’s speciality is
urban species, and she’s contributed to the research that
underpins Santa Clara County’s habitat conservation plan on
burrowing owls. But before that she was also the lead scientist
for the South Bay Salt Pond Restoration Project, one of
the largest tidal wetland restoration projects on the West
Coast. “One of the things that drove the effort was the
fact that there were endangered species” in wetlands, said
Trulio. She said it took years to change the perception of the
wetlands as a dumping ground and to get a ballot measure to
fund its preservation.
A search continues for a woman last seen being carried
downriver in the Angeles National Forest, California sheriff’s
officials said. The 59-year-old woman lost her footing while
crossing a river near the Heaton Flats Trail at 9:51 a.m.
Saturday, March 9, the Los Angeles County Sheriff’s Office said
in a news release. Strong river currents swept her downstream,
deputies said. She had been hiking with friends. … Some
teams have been airlifted to search areas because of the rugged
terrain and swift river currents, deputies said. The sheriff’s
office encouraged hikers to use “extreme caution” when crossing
rivers.
Time is running out for the West’s wet season, but recent
storms have done wonders for the snowpack and the drought
across much of the region, especially in California. ”The
drought situation across the western U.S. has improved
considerably as a result of a very wet winter,” Jay
Famiglietti, a hydrologist at Arizona State University, told
USA TODAY. In fact, both California and Nevada are
“essentially drought-free” at the moment, which is “really
unusual,” he said. Elsewhere, the giant reservoirs of the
Colorado River Basin, Lakes Mead and Powell, are now about
one-third full. … Specifically, only about 25% of the
western U.S. is currently in drought conditions, according to
the latest U.S. Drought Monitor, which is down from 51%
this time last year.
Ahead of a deadline next week, the seven states that share the
Colorado River have revealed competing plans for how the river
should be managed in the future. They’re split into two
factions, with the Upper Basin states of Colorado, New Mexico,
Utah, and Wyoming on one side, and their Lower Basin
counterparts—California, Arizona and Nevada—on the other. Those
two camps have been at odds over water management many times
over the past century. Now, with climate change shrinking the
Colorado River’s supply, they’re under intense pressure to rein
in demand. While the current guidelines for sharing the
river don’t expire until 2026, the Biden Administration set a
mid-March deadline for proposals for new guideline, in part
because the upcoming election in November could bring a change
of presidential administration that could complicate the
implementation of new rules.
What a difference a month makes. There has been some
hand-wringing this winter regarding California’s 2024 water
outlook, especially in the southern mountains and the Kern
River Watershed. But new reports are pointing toward a much
more favorable water year, including in the Kern River Basin,
and by extension, Isabella Lake storage.
Countries, regions, and river basins globally are struggling to
provide and manage flows in rivers for ecosystems. One
approach, of many, is a Functional Flows approach, because it
seeks to provide a range of streamflows over the year and
between years to support fundamental functions of river
ecosystems and the ecosystem services for society. … The
approach also involves a process for balancing multiple human
and ecological objectives for river systems through broad
engagement of multiple interests. In their challenge to
maintain riverine ecosystem services, Chile and California can
benefit from this dynamic approach to managing instream flows.
California officials are preparing new urban water conservation
rules intended to help the state adapt to a drier future caused
by climate change. In reality, the proposed restrictions are so
great they could actually harm those adaptation efforts by
sacrificing the tree canopy we have nurtured in our cities for
generations. The “Making Conservation a California Way of Life”
rule package, proposed by the State Water Resources Control
Board, sets conservation targets unique to each urban water
agency in the state. While conserving each and every year makes
sense, so must the restrictions. A recent report by the
non-partisan Legislative Analyst’s Office found big flaws in
the Water Board’s approach, describing the proposal as overly
complex, expensive and unrealistic, with potential water
savings amounting to a mere drop in the bucket statewide. -Written by Jim Peifer, executive director of the
Sacramento Regional Water Authority; and Victoria
Vasquez, grants and public policy manager
for California ReLeaf, which works to protect, enhance and
grow California’s urban and community forests.