Groundwater

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  • A Guide for Using the Transient Ground-Water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California

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    A Guide for Using the Transient Ground-Water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California

    U.S. Geological Survey, Santa Barbara County Department of Public Works Water Agency | November 4, 2006...
    Summary

    This report is a guide for executing numerical simulations with the transient ground-water flow model of the Death Valley regional ground-water flow system,...

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  • A hybrid machine learning model to predict and visualize nitrate concentration throughout the Central Valley aquifer, California, USA

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    A hybrid machine learning model to predict and visualize nitrate concentration throughout the Central Valley aquifer, California, USA

    Science of the Total Environment | June 9, 2017...
    Summary

    Intense demand forwater in the Central Valley of California and related increases in groundwater nitrate concentration threaten the sustainability of the groundwater resource....

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  • A National Framework for Groundwater Monitoring in the United States

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    A National Framework for Groundwater Monitoring in the United States

    USGS | July 1, 2013...
    Summary

    The establishment and management of a National Ground-Water Monitoring Network (NGWMN) in the United States would represent a significant achievement in water-resource management....

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  • An Update of the Death Valley Regional Groundwater Flow System Transient Model, Nevada and California

    An Update of the Death Valley Regional Groundwater Flow System Transient Model, Nevada and California

    U.S. Geological Survey | October 31, 2016...
    Summary

    The U.S. Geological Survey (USGS) has revised the regional-scale Death Valley regional groundwater flow system (DVRFS) numerical model with new data and interpretations...

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  • Analysis of Potential Water-Supply Management Options, 2010-60, and Documentation of Revisions to the Model of the Irwin Basin Aquifer System, Fort Irwin National Training Center, California

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    Analysis of Potential Water-Supply Management Options, 2010-60, and Documentation of Revisions to the Model of the Irwin Basin Aquifer System, Fort Irwin National Training Center, California

    U.S. Geological Survey, Fort Irwin National Training Area | October 31, 2014...
    Summary

    The Fort Irwin National Training Center is considering several alternatives to manage their limited water-supply sources in the Irwin Basin. An existing three-dimensional,...

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  • Applying the Connectivity Approach: Groundwater management in California’s Kings Basin

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    Applying the Connectivity Approach: Groundwater management in California’s Kings Basin

    California Roundtable on Water and Food Supply | March 27, 2015...
    Summary

    The California Roundtable on Water and Food Supply (CRWFS) studied the processes used in the Kings Groundwater Subbasin (Kings Basin) of California’s San...

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  • Assessing the effectiveness of drywells as tools for stormwater management and aquifer recharge and their groundwater contamination potential

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    Assessing the effectiveness of drywells as tools for stormwater management and aquifer recharge and their groundwater contamination potential

    Science Direct | May 24, 2016...
    Summary

    Drywells are gravity-fed, excavated pits with perforated casings used to facilitate stormwater infiltration and groundwater recharge in areas where drainage and diversion of...

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  • Basin Boundary Adjustment Regulation Fact Sheet

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    Basin Boundary Adjustment Regulation Fact Sheet

    Department of Water Resources | October 16, 2015...
    Summary

    In September 2014, the Governor signed into law the Sustainable Groundwater Management Act (SGMA). The Department has developed a program and is currently...

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  • BasinScout: Water Quantity

    BasinScout: Water Quantity

    The Freshwater Trust | January 16, 2018...
    Summary

    California’s Sustainable Groundwater Management Act (SGMA) establishes milestones that high- and medium-priority basins in a critical state of overdraft must meet to become...

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  • Bulletin 118: California’s Groundwater (1975)

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    Bulletin 118: California’s Groundwater (1975)

    Department of Water Resources | September 1, 1975...
    Summary

    Water has long been a key factor in California's social and economic development.  The water has come about equally from groundwater (water stored...

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  • Bulletin 118: California’s Groundwater (1980)

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    Bulletin 118: California’s Groundwater (1980)

    Department of Water Resources | January 1, 1980...
    Summary

    Ground water management is a major issue in California.  The Governor's Commission to Review California Water Rights Law, in its December 1978 report,...

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  • Bulletin 118: California’s Groundwater (2003)

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    Bulletin 118: California’s Groundwater (2003)

    Department of Water Resources | October 1, 2003...
    Summary

    Despite California’s heavy reliance on groundwater, basic information for many of the groundwater basins is lacking. Particular essential data necessary to provide for...

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  • Bulletin 118: California’s Groundwater (Interim Update 2016)

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    Bulletin 118: California’s Groundwater (Interim Update 2016)

    Department of Water Resources | December 22, 2016...
    Summary

    A new era for California’s groundwater began in September 2014 with the passage of the Sustainable Groundwater Management Act (SGMA). SGMA established a...

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  • California Code of Regulations: Sustainable Groundwater Management Act Basin Boundary Regulations

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    California Code of Regulations: Sustainable Groundwater Management Act Basin Boundary Regulations

    Department of Water Resources | October 7, 2015...
    Summary

    These regulations specify the information a local agency is required to provide when requesting that the Department revise the boundaries of a basin...

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  • California Code of Regulations: Title 23. Waters Division 2. Department of Water Resources Chapter 1.5. Groundwater Management Subchapter 2. Groundwater Sustainability Plans

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    California Code of Regulations: Title 23. Waters Division 2. Department of Water Resources Chapter 1.5. Groundwater Management Subchapter 2. Groundwater Sustainability Plans

    California Department of Water Resources | May 17, 2016...
    Summary

    ARTICLE 1. Introductory Provisions § 350. Authority and Purpose These regulations specify the components of groundwater sustainability plans, alternatives to groundwater sustainability plans,...

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  • California Groundwater Units

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    California Groundwater Units

    USGS | June 5, 2014...
    Summary

    The California Groundwater Units dataset classifies and delineates areas within the State of California into one of three groundwater-based polygon units: (1) those...

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  • California Hydrogeologically Vulnerable Areas Map

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    California Hydrogeologically Vulnerable Areas Map

    State Water Resources Control Board | January 31, 2012...
    Summary

    In response to Executive Order D-5-99, State Water Board staff created a map where published hydrogeologic information indicates soil or rock conditions that...

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  • California Statewide Groundwater Elevation Monitoring (CASGEM) Status Report 2012

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    California Statewide Groundwater Elevation Monitoring (CASGEM) Status Report 2012

    Department of Water Resources | April 23, 2012...
    Summary

    Senate Bill X7 6 (SBX7 6) (Chapter 1, Statutes 2009) added provisions for Groundwater Monitoring to Division 6 of the Water Code (Water...

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  • California’s Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California’s Central Valley

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    California’s Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California’s Central Valley

    U.S. Geological Survey | June 16, 2009...
    Summary

    Competition for water resources is growing throughout California, particularly in the Central Valley. Since 1980, the Central Valley’s population has nearly doubled to...

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  • California’s Groundwater Update 2013: A Compilation of Enhanced Content for California Water Plan Update 2013

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    California’s Groundwater Update 2013: A Compilation of Enhanced Content for California Water Plan Update 2013

    Department of Water Resources | April 1, 2015...
    Summary

    The primary goal of California’s Groundwater Update 2013: A Compilation of Enhanced Content for California Water Plan Update 2013 (California’s Groundwater Update 2013)...

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