Lester A. Snow, the mastermind behind
countless water resources management projects, has been involved
in water issues in two states, both the public and private
sectors and on regional, state and federal levels of government.
In a timeline of his career, Snow served from 1988-1995 as the
general manager of the San Diego County Water Authority after
leaving the Arizona Department of Water Resources. From
1995-1999, he was the executive director of the CALFED Bay-Delta
Program, which included a team of both federal and state
agencies.
Springs are where groundwater becomes surface water, acting as openings
where subsurface water can discharge onto the ground or directly
into other water bodies. They can also be considered the
consequence of an overflowing
aquifer. As a result, springs often serve as headwaters to streams.
The Stanislaus River empties into the San Joaquin River from the
east along with the Merced
and Tuolumne rivers.
Although some agricultural drainage
flows into these rivers in their lower reaches, the water quality
is relatively good in each of the three tributaries.
Liability for levee failure in California took a new turn after a
court ruling found the state liable for hundreds of millions of
dollars from the 1986 Linda Levee collapse in Yuba County. The
levee failure killed two people and destroyed or damaged about
3,000 homes.
The collapse also had long-term legal ramifications.
The Paterno Decision
California’s Supreme Court found that, “when a public entity
operates a flood management system built by someone else, it
accepts liability as if it had planned and built the system
itself.”
The State Water Project is an aquatic lifeline for California because of its vital role in bringing water to cities and farms. Without it, California would never have developed into the economic powerhouse it is.
The Project diverts water from the Feather River to the Central Valley, South Bay Area and Southern California. Its key feature is the 444-mile-long California Aqueduct seen along Interstate 5.
Ron Stork, the award-winning policy director of the Friends of
the River, joined the statewide California river conservation
group in 1987 as its associate conservation director. Previously
he was executive director of the Merced Canyon Committee, where
he directed the successful effort to obtain the National Wild and
Scenic River designation for the Merced River.
For all the benefits of precipitation, stormwater also brings
with it many challenges.
In urban areas, after long dry periods rainwater runoff can
contain heavy accumulations of pollutants that have built up over
time. For example, a rainbow like shine on a roadway puddle can
indicate the presence of oil or gasoline. Stormwater does not go
into the sewer. Instead, pollutants can be flushed into waterways
with detrimental effects on the environment and water quality.
Rita Schmidt Sudman, who led the Water Education Foundation as
executive director for more than 30 years, is widely recognized
for her work since the 1980s as a journalist and communicator who
developed programs to foster public understanding of water issues
and for her work with stakeholders to find solutions. A former
radio and television reporter and producer, she oversaw the
development of print and digital publications, public television
programs, poster maps, tours, press briefings and a school
program.
Suisun Marsh is where fresh water
from the Sacramento-San Joaquin
Delta mixes with salt water from San Francisco Bay. The
116,000-acre marsh is the largest contiguous brackish-water
wetland in California and perhaps the entire western coast of
North America, providing food and habitat for thousands of
migratory birds on the Pacific Flyway and many species of plants,
fish and wildlife.
Biodiversity
It is a complex of tidal wetlands, diked seasonal
wetlands, sloughs and upland grassland that comprises more than
10 percent of the remaining wetlands in California.
The marsh is a center of significant biodiversity because of its
continued protection and management as a wetland
ecosystem. The state and private duck clubs manage most of
the marsh, primarily for hunting and wildlife conservation.
The diversity is reflected in the wide array of plants and
animals, especially native species, like the endangered salt
marsh harvest mouse. Some species, such as the Suisun
song sparrow and Suisun thistle are largely endemic to the marsh,
as detailed in the book, Suisun
Marsh, Ecological History and Possible Futures.
Salinity Control
State Water Project and Central Valley
Project exports from the south Delta reduce the Delta outflow to
the ocean, which increases salinity. In the 1980s, project
managers installed several salinity control gates in Suisun Marsh
to protect wildlife habitat.
These gates are opened when water flowing out of the Delta is
fresh (generally in the winter) and are closed when the saltwater
creeps back up the Bay in the summer.
Challenges
Since at least 2015, scientific fish surveys of the Delta and
Suisun Marsh have shown an ongoing, sweeping population crash of
native species.
Declines of some species, particularly Delta smelt, have
triggered requirements under the U.S. Endangered Species Act to
curtail pumping rates at the federal and state export facilities
in the south Delta. Operators of the pumps must also
restore 8,000 acres of tidal wetlands.
Efforts to meet the restoration target, including a former duck
club hunting grounds on the eastern edge of Grizzly Bay in Suisun
Marsh that supports chinook salmon, longfin smelt and,
historically, Delta smelt. Dikes and berms were removed to allow
full daily tidal exchanges to resume. Completed in 2019, the
420-acre
Tule Red Tidal Restoration Project is managed by the state
Department of Fish and Wildlife with funding from the Department
of Water Resources, operator of the state’s Delta pumping plant.
The story of California’s surface water— water that remains on
the earth’s surface, in rivers, streams, lakes, reservoirs or
oceans—is one that reflects the state’s geographic complexity.
About 75 percent of California’s surface water supply originates
in the northern third of the state, but around 80 percent of
water demand occurs in the southern two-thirds of the state. And
the demand for water is highest during the dry summer months when
there is little natural precipitation or snowmelt.
A tremendous amount of time and technology is expended to make
surface water safe to drink. Surface water undergoes many
processes before it reaches a consumer’s tap.
A new era of groundwater management
began in 2014 with the passage of the Sustainable Groundwater
Management Act (SGMA), which aims for local and regional agencies
to develop and implement sustainable groundwater management
plans with the state as the backstop.
SGMA defines “sustainable groundwater management” as the
“management and use of groundwater in a manner that can be
maintained during the planning and implementation horizon without
causing undesirable results.”
Sustainability is defined as that
which “meets the needs of the present without compromising the
ability of future generations to meet their own needs.” In
California, several efforts have been undertaken in recent years
to address the sustainability and resilience of the state’s vital
water resources.