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  • 2016 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies and Disposition Santa Maria Valley Management Area

    2016 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies and Disposition Santa Maria Valley Management Area

    City of Santa Maria | April 13, 2017...
    Summary

    This annual report of conditions in the Santa Maria Valley Management Area, for calendar year 2016, has been prepared to meet the reporting conditions...

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  • 2017 Salinas Valley Groundwater Level Contours & Seawater Intrusion Maps

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    2017 Salinas Valley Groundwater Level Contours & Seawater Intrusion Maps

    Monterey County Water Resources Agency (MCWRA) | April 24, 2018...
    Summary

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  • 2017 SGMA Annual Report South American Subbasin (5-021.65) Sacramento Central Groundwater Authority

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    2017 SGMA Annual Report South American Subbasin (5-021.65) Sacramento Central Groundwater Authority

    Sacramento Central Groundwater Authority, GEI Consultants Inc. | April 1, 2018...
    Summary

    The Sacramento Central Groundwater Authority (SCGA) has prepared an Annual Report describing groundwater conditions in the South American Subbasin for the 2017 Water...

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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, U.S. Department of Energy Office of Environmental Management | 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 Simulation-Optimization Model for Water-Resources Management, Santa Barbara, California

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    A Simulation-Optimization Model for Water-Resources Management, Santa Barbara, California

    Journal of Water Resources Planning and Management, U.S. Geological Survey | September 1, 1998...
    Summary

    A simulation-optimization model has been developed for the optimal management of the city of Santa Barbara's water resources during a drought. The model,...

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  • A Water Resources Data Network Evaluation for Monterey County, California; Phase 1; South County

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    A Water Resources Data Network Evaluation for Monterey County, California; Phase 1; South County

    U..S. Geological Survey, Monterey County Flood Control and Water Conservation District | July 12, 1986...
    Summary

    An evaluation made of rainfall, surface water, groundwater, and water quality monitoring networks in Salinas River basin in southern Monterey County, California, proposed...

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  • A Water Resources Data Network Evaluation for Monterey County, California; Phase 3, Northern Salinas River Drainage Basin

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    A Water Resources Data Network Evaluation for Monterey County, California; Phase 3, Northern Salinas River Drainage Basin

    U.S. Geological Survey, Monterey County Flood Control and Water Conservation District | December 13, 1990...
    Summary

    Continuing data collection and analysis are vital to efficient development and management of water resources. To insure that water managers have adequate information...

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  • A Water Resources Data-Network Evaluation for Monterey County, California, Phase 3: Northern Salinas River Drainage Basin

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    A Water Resources Data-Network Evaluation for Monterey County, California, Phase 3: Northern Salinas River Drainage Basin

    U.S. Geological Survey, Monterey County Flood Control and Water Conservation District | December 15, 1990...
    Summary

    This report presents an evaluation of water resources data collection networks in the northern Salinas River drainage basin, Monterey County, California. The evaluation,...

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  • Agricultural Irrigation in This Drought: Where is the Water and Where Is It Going?

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    Agricultural Irrigation in This Drought: Where is the Water and Where Is It Going?

    University of California Giannini Foundation of Agricultural Economics | May 14, 2015...
    Summary

    In the midst of its fourth year of drought, California now faces an estimated reduction in surface-water availability of 8.8 million acre-feet (maf)...

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  • Alamitos Barrier Project: Annual Report on the Control of Seawater Intrusion 2016-2017

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    Alamitos Barrier Project: Annual Report on the Control of Seawater Intrusion 2016-2017

    Los Angeles County Department of Public Works | June 30, 2017...
    Summary

    The Alamitos Barrier Project (ABP) was designed and constructed to protect the groundwater supplies of the Central/Orange County Basin of the Coastal Plain...

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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 Groundwater Basin Yield, Upper Santa Clara River Groundwater Basin, East Subbasin, Los Angeles County, California

    Analysis of Groundwater Basin Yield, Upper Santa Clara River Groundwater Basin, East Subbasin, Los Angeles County, California

    Castaic Lake Water Agency, Newhall County Water District, Santa Clarita Water | August 15, 2005...
    Summary

    This report presents an evaluation of the long-term sustainability of existing groundwater management practices in the Santa Clarita Valley, located in northwestern Los Angeles County,...

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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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  • Assessment of Interconnected Subbasins

    Assessment of Interconnected Subbasins

    Butte County | June 30, 2017...
    Summary

    The Sustainable Groundwater Management Act (SGMA) requires groundwater sustainability agencies (GSAs) to develop groundwater sustainability plans (GSPs) that achieve sustainable groundwater management within...

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  • Assessment of Interconnected Subbasins: Regional Collaboration and Model Selection Process

    Assessment of Interconnected Subbasins: Regional Collaboration and Model Selection Process

    Groundwater Resources Association of California | October 3, 2017...
    Summary

    In basins with complex spatial and temporal variations in water budget components, integrated groundwater-surface water modeling is the best approach to quantify and...

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  • Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

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    Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

    Environmental Research Letters | July 31, 2017...
    Summary

    California’s climate is characterized by the largest precipitation and streamflow variability observed within the conterminous US This, combined with chronic groundwater overdraft of...

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  • Basin Framework for a Multi-benefit Groundwater Replenishment and Water Trading Program: Groundwater Sustainability Plan Chapter Template

    Basin Framework for a Multi-benefit Groundwater Replenishment and Water Trading Program: Groundwater Sustainability Plan Chapter Template

    Environmental Defense Fund | October 1, 2018...
    Summary

    The following Groundwater Sustainability Plan (GSP) chapter templates were developed by Environmental Defense Fund and New Current Water and Land, LLC to assist...

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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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  • Before the Well Runs Dry: Improving the Linkage Between Groundwater and Land Use Planning

    Before the Well Runs Dry: Improving the Linkage Between Groundwater and Land Use Planning

    Water in the West, Stanford Woods Institute for the Environment, The Bill Lane Center for the American West | April 17, 2014...
    Summary

    There is no comprehensive regulation of groundwater use in the state of California,* and the right to withdraw groundwater is based on surface...

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