Seawater Intrusion Library

Welcome to the Saltwater Intrusion Resource Library. We hope to provide quality links to information on saltwater intrusion in the Los Angeles and Southern California region. Please contact us if you have any comment or suggestions.

US Geological Survey


Saltwater Intrusion in Los Angeles Area Coastal Aquifers - the Marine Connection

Saltwater IntrusionAuthor:

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Seawater intrusion into the coastal aquifers of Los Angeles poses a significant threat to the local water supply. This article is a brief summary of techniques used by USGS, WRD, and the Los Angeles Department of Public Works to study saltwater intrusion and the hydrogeology of the Los Angeles Basin.

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Ground-Water Quality of Coastal Aquifer Systems in the West Coast Basin, Los Angeles County, California, 1999-2002

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A series of injection wells at two seawater barrier projects controls seawater intrusion in the West Coast Basin. This report provides a detailed assessment of saline groundwater in the West Coast Basin.

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Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Central and West Coast Basins of Los Angeles CountyProject Chief:

The USGS in cooperation with the Water Replenishment District has conducted an intensive study of the geohydrology and geochemistry of the Central and West Coast Basins of Los Angeles County since 1995. Here is a catalog of the reports prepared thus far.

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Southern California Salt-Water Intrusion

Description of CASA, Coastal Aquifers Stratgraphic Architecture, one of the tasks of USGS' Coastal and Marine Geology Team. CASA is an attempt to address issues of saltwater intrusion and is currently focused on the Los Angeles, Long Beach and San Pedro areas

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Saltwater Intrusion in a Coastal California Aquifer

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A summary of work on seawater intrusion into the coastal aquifers of the Oxnard Plain in Ventura County, California.

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Ground-Water Simulation-Optimization of the Central and West Coast Basins, Los Angeles County

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A four-layer ground-water flow model was developed to simulate steady-state ground-water conditions representative of those in 1971 and transient conditions for the period 1971 - 2000. Model results indicate increases in ground-water storage in all parts of the study area over the simulated thirty-year period.

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U.S. Environmental Protection Agency


Salt Water Intrusion Barrier Wells

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The US EPA conducted a study of Class V underground saltwater intrusion barrier wells to assess the effectiveness of controlling salt water intrusion through the creation and maintenance of a fresh water ridge.

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