California’s rich agricultural productivity comes with a price.
The dry climate that provides the almost year-round growing
season also can require heavily irrigated soils. But such
irrigation can also degrade the local water quality.
Two of the state’s most productive farming areas in particular,
the west side of the San Joaquin Valley and parts of the Imperial
Valley in southern California, have poorly drained and naturally
saline soils.
New California legislation seeks to permanently ban paraquat, a
powerful and widely used weedkiller that has been linked to
Parkinson’s disease and other serious health issues. Assembly
Bill 1963, introduced recently by Assemblymember Laura Friedman
(D-Glendale), would sunset the use of paraquat beginning in
January 2026. The herbicide, which is described by the U.S.
Environmental Protection Agency as highly toxic, is regularly
sprayed on almonds, grapes, cotton and other crops in the
state. … California is the nation’s top user of paraquat
…
Think “Sonoma County farm,” and most people will conjure an
image of docile cows chewing cud or chickens scratching the
dirt, idly whiling away their days among the grassy, green
hills of this mostly rural, coastal Northern California county.
But animal rights activists say all is not right in this region
known for its wine and farm-to-fork sensibilities. They say
there are two dozen large, concentrated animal farming
operations — which collectively house almost 3 million animals
— befouling watersheds and torturing livestock and poultry in
confined lots and cages. And in an effort to stop it, they’ve
collected more than 37,000 signatures from Sonoma County
residents to put an end to it — forcing the county Board of
Supervisors to either enact or match the ordinance themselves,
or have it kicked over to the November ballot.
In an April 1, 2024 letter to three water boards, fishing and
conservation groups and the Winnemem Wintu Tribe urged
regulators to control recently measured excess levels of
selenium in Mud Slough. Mud Slough drains selenium-impaired
land on the west side of the San Joaquin Valley into the San
Joaquin River and ultimately San Francisco Bay.
… Selenium has long been known to cause
reproductive failure, deformities, and death in fish and
waterfowl, according to a statement from the California
Sportfishing Protection Alliance (CSPA). “Our groups have
spent over a decade at the water boards and in court trying to
bring runoff from Mud Slough into compliance with water quality
standards,” said Chris Shutes, Executive Director of the
California Sportfishing Protection Alliance.
Southern California’s Imperial Irrigation District, which
supplies water to farmers who grow most of the nation’s winter
vegetables, planned to start a conservation program in April to
scale back what it draws from the critical Colorado River. But
a tiny, tough fish got in the way. Now, those plans won’t start
until at least June so water and wildlife officials can devise
a way to ensure the endangered desert pupfish and other species
are protected, said Jamie Asbury, the irrigation district’s
general manager.
California wineries appear to be complying with the Water
Board’s statewide Winery General Order’s winery wastewater
requirements, but the pace is slow, state statistics reveal.
And many are not in the compliance reporting pipeline at all,
data shows. (An overview page is provided here.) The order was
passed, the water boards said, for two major reasons. One was
because, “Winemakers requested the order to address the
statewide inconsistencies in permitting.” This request was from
large wineries that operate numerous facilities throughout the
state. (Smaller wineries opposed this in the public
hearings.) … As of Feb. 20, 2024, 201 wineries had
begun the process of filing, leaving a gap of 1,449 wineries
(the difference between 1,650 and 201, based on the initial
estimates).
Although pesticides can rid your home of cockroaches or farm
fields of unwanted insects, they also can harm fish and
potentially even people, according to a new study from Oregon
State University. At high concentrations, these commonly
used pyrethroid pesticides, bifenthrin, cyfluthrin and
cyhalothrin, act as a neurotoxin for pests. … At low
concentrations, the pyrethroid pesticides disrupt fish’s
endocrine system, which produces hormones. The scientists
wanted to better understand how short of an exposure would harm
fish.
… For millennia seasonal wetlands dotted California’s Central
Valley … But as farms and towns have taken over the
landscape, nearly all those shallow, ephemeral water bodies
have disappeared, leaving avian migrants with scant options for
pit stops. With shorebirds rapidly declining along the Pacific
Flyway, conservationists and landowners have joined forces to
help turn the tide. Launched in
2014, BirdReturns runs via reverse auctions … Since
its inception, the program—jointly run by Audubon California,
The Nature Conservancy, and Point Blue Conservation Science—has
paid more than 100 farmers a total of $2 million to flood
60,000 acres throughout the Sacramento and San Joaquin valleys.
Buoyed by a recent $15 million grant from the state, the
program is poised to greatly expand its reach.
A pilot program in the Salinas Valley run remotely out of Los Angeles is offering a test case for how California could provide clean drinking water for isolated rural communities plagued by contaminated groundwater that lack the financial means or expertise to connect to a larger water system.
For decades, cannabis has been grown
in California – hidden away in forested groves or surreptitiously
harvested under the glare of high-intensity indoor lamps in
suburban tract homes.
In the past 20 years, however, cannabis — known more widely as
marijuana – has been moving from being a criminal activity to
gaining legitimacy as one of the hundreds of cash crops in the
state’s $46 billion-dollar agriculture industry, first legalized
for medicinal purposes and this year for recreational use.
As part of the historic Colorado
River Delta, the Salton Sea regularly filled and dried for
thousands of years due to its elevation of 237 feet below
sea level.
Salt. In a small amount, it’s a gift from nature. But any doctor
will tell you, if you take in too much salt, you’ll start to have
health problems. The same negative effect is happening to land in
the Central Valley. The problem scientists call “salinity” poses
a growing threat to our food supply, our drinking water quality
and our way of life. The problem of salt buildup and potential –
but costly – solutions are highlighted in this 2008 public
television documentary narrated by comedian Paul Rodriguez.
A 20-minute version of the 2008 public television documentary
Salt of the Earth: Salinity in California’s Central Valley. This
DVD is ideal for showing at community forums and speaking
engagements to help the public understand the complex issues
surrounding the problem of salt build up in the Central Valley
potential – but costly – solutions. Narrated by comedian Paul
Rodriquez.
This Western Water looks at proposed new measures to deal with
the century-old problem of salinity with a special focus on San
Joaquin Valley farms and cities.
This issue of Western Water examines that process. Much
of the information is drawn from discussions that occurred at the
November 2005 Selenium Summit sponsored by the Foundation and the
California Department of Water Resources. At that summit, a
variety of experts presented findings and the latest activities
from areas where selenium is of primary interest.
With irrigation projects that import water, farmers have
transformed millions of acres of land into highly productive
fields and orchards. But the dry climate that provides an almost
year-round farming season can hasten salt build up in soils. The
build-up of salts in poorly drained soils can decrease crop
productivity, and there are links between drainage water from
irrigated fields and harmful impacts on fish and wildlife.
30-minute DVD that traces the history of the U.S. Bureau of
Reclamation and its role in the development of the West. Includes
extensive historic footage of farming and the construction of
dams and other water projects, and discusses historic and modern
day issues.
Water truly has shaped California into the great state it is
today. And if it is water that made California great, it’s the
fight over – and with – water that also makes it so critically
important. In efforts to remap California’s circulatory system,
there have been some critical events that had a profound impact
on California’s water history. These turning points not only
forced a re-evaluation of water, but continue to impact the lives
of every Californian. This 2005 PBS documentary offers a
historical and current look at the major water issues that shaped
the state we know today. Includes a 12-page viewer’s guide with
background information, historic timeline and a teacher’s lesson.
This beautiful 24×36 inch poster, suitable for framing, features
a map of the San Joaquin River. The map text focuses on the San
Joaquin River Restoration Program, which aims to restore flows
and populations of Chinook salmon to the river below Friant Dam
to its confluence with the Merced River. The text discusses the
history of the program, its goals and ongoing challenges with
implementation.
A companion to the Truckee River Basin Map poster, this 24×36
inch poster, suitable for framing, explores the Carson River, and
its link to the Truckee River. The map includes Lahontan Dam and
Reservoir, the Carson Sink, and the farming areas in the basin.
Map text discusses the region’s hydrology and geography, the
Newlands Project, land and water use within the basin and
wetlands. Development of the map was funded by a grant from the
U.S. Bureau of Reclamation Mid-Pacific Region, Lahontan Basin
Area Office.
Southern California’s Imperial Valley is home to California’s
earliest agricultural
drainage success story, one that converted a desert landscape
to an agricultural one, but at the same time created far reaching
consequences.
Evaporation ponds contain agricultural drainage water and are
used when agricultural growers do not have access to rivers for
drainage disposal.
Drainage water is the only source of water in many of these
ponds, resulting in extremely high concentrations of salts.
Concentrations of other trace elements such as selenium are also
elevated in evaporation basins, with a wide degree of variability
among basins.
Such ponds resemble wetland areas that birds use for nesting and
feeding grounds and may pose risks to waterfowl and shorebirds.
Agriculture drainage issues date back to the earliest farming. In
ancient times, farmers let fields stay fallow hoping rain would
flush out salt.
Today, salt and other contaminants continue to cause agricultural
drainage problems, particularly in California. Whether a field is
adequately drained, or saturated with water, the water still has
to be removed.
The disposal of this often-contaminated water continues to be a
challenge in California, with the environmental effects of
selenium and other drainage-related elements changing the course
of drainage planning.
Few regions are as important to California water as the Sacramento-San Joaquin
Delta, where the Sacramento and San Joaquin rivers converge
to discharge into San Francisco Bay.
California’s rich agricultural productivity comes with a price.
The dry climate that provides the almost year-round growing
season also can require heavily irrigated soils. But such
irrigation can degrade the local water quality.
Two of the state’s most productive farming areas in particular,
the west side of the San
Joaquin Valley and parts of the Imperial Valley in Southern
California, have poorly drained and naturally saline soils.