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Banner May 22, 2014

Your Online Water Encyclopedia

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Overview February 11, 2014

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Lester A. Snow

Lester SnowLester 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.

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Aquapedia background September 8, 2016

Springs

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.

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Aquapedia background February 11, 2014

South Bay Aqueduct

The South Bay Aqueduct, the first conveyance facility built for the State Water Project, supplies water to Alameda and Santa Clara counties.

To do so, the South Bay Aqueduct relies on 40 miles of pipes and canals to transport the water from the Sacramento-San Joaquin Delta.

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Stanislaus River

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.

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Aquapedia background February 11, 2014

State Liability, Flood Protection and the Paterno Decision

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.”

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California Aqueduct
Aquapedia background February 11, 2014 California Water Map Layperson's Guide to the State Water Project

State Water Project

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.

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Aquapedia background February 11, 2014

Ron Stork

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.

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Aquapedia background February 11, 2014

Stormwater

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.

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Aquapedia background August 15, 2016

Subsidence

Sinking of land(s) due to compaction, oxidation of peat soils, and/or wind erosion, can occur when groundwater is overdrafted.

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Subsurface Drainage

System of underground pipes to remove excess water accumulating below the soil surface that will not naturally percolate out of the root zone.

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Aquapedia background March 14, 2020

Rita Schmidt Sudman

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.

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Aquapedia background February 11, 2014 Sacramento-San Joaquin Delta Map Layperson's Guide to the Delta

Suisun Marsh

Suisun MarshSuisun 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.

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Surface Water
Aquapedia background February 11, 2014

Surface Water

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.

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Aquapedia background February 11, 2014

Surface Water Treatment

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.

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Aquapedia background May 17, 2016 Layperson's Guide to Groundwater California Groundwater Map

Sustainable Groundwater Management Act (SGMA)

A man watches as a groundwater pump pours water onto a field in Northern California.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.”

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Aquapedia background February 27, 2015

Sustainability

People fish along the McCloud RiverSustainability 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.

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