nitrates

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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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  • Central Valley Salinity Alternatives for Long-Term Sustainability (CV-SALTS)

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    Central Valley Salinity Alternatives for Long-Term Sustainability (CV-SALTS)

    Central Valley Salinity Coalition (CVSC) | January 19, 2017...
    Summary

    Elevated salinity and nitrates in surface water and groundwater are increasing problems affecting much of California, other western states, and arid regions throughout...

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  • Groundwater Contributions of Flow, Nitrate, and Dissolved Organic Carbon to the Lower San Joaquin River, California, 2006–08

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    Groundwater Contributions of Flow, Nitrate, and Dissolved Organic Carbon to the Lower San Joaquin River, California, 2006–08

    U.S. Geological Survey (USGS), University of California at Davis (UCDavis), CalFed | October 8, 2013...
    Summary

    The influence of groundwater on surface-water quality in the San Joaquin River, California, was examined for a 59-mile reach from the confluence with...

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  • Groundwater Quality in the South Coast Interior Basins, California

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    Groundwater Quality in the South Coast Interior Basins, California

    U.S. Geological Survey (USGS), California State Water Resources Control Board | May 14, 2014...
    Summary

    The South Coast Interior Basins (SCI) study unit covers approximately 653 square miles and consists of the Livermore, Gilroy-Hollister, Cuyama Valley, Castac Lake...

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  • Groundwater Quality in the Western San Joaquin Valley, California

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    Groundwater Quality in the Western San Joaquin Valley, California

    U.S. Geological Survey (USGS), California State Water Resources Control Board | June 9, 2017...
    Summary

    Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient...

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  • Human Costs of Nitrate-contaminated Drinking Water in the San Joaquin Valley

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    Human Costs of Nitrate-contaminated Drinking Water in the San Joaquin Valley

    Pacific Institute | March 1, 2011...
    Summary

    While most Californians take for granted that safe water is readily available at the turn of a tap, a growing number of communities,...

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  • Nitrogen Tracking and Reporting Task Force: Final Report

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    Nitrogen Tracking and Reporting Task Force: Final Report

    California Department of Food and Agriculture | December 6, 2013...
    Summary

    Agriculture in California is highly diverse in terms of food production, crop management, ecosystems, and climate. Nitrogen fertilizer is essential for crop food...

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  • Policy Considerations for Managing Agricultural Nitrogen to Reduce Groundwater Contamination in California

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    Policy Considerations for Managing Agricultural Nitrogen to Reduce Groundwater Contamination in California

    California Roundtable on Agriculture and the Environment | May 28, 2013...
    Summary

    Recent research, including “The California Nitrogen Assessment”1 and the UC Davis Report for the SWRCB SBX2 1 Report to the Legislature2, has produced...

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  • Quantifying anthropogenic contributions to century-scale groundwater salinity changes, San Joaquin Valley, California, USA

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    Quantifying anthropogenic contributions to century-scale groundwater salinity changes, San Joaquin Valley, California, USA

    Science of the Total Environment | June 15, 2018...
    Summary

    Total dissolved solids (TDS) concentrations in groundwater tapped for beneficial uses (drinking water, irrigation, freshwater industrial) have increased on average by about 100...

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  • Reduction of Nitrates in Groundwater – Agricultural Expert Panel Report

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    Reduction of Nitrates in Groundwater – Agricultural Expert Panel Report

    State Water Resources Control Board | September 9, 2014...
    Summary

    Recommendations to the State Water Resources Control Board pertaining to the Irrigated Lands Regulatory Program The Agricultural Expert Panel (Panel) was convened to...

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  • Salt and Nutrient Management Plan Santa Clara River Valley East Subbasin

    Salt and Nutrient Management Plan Santa Clara River Valley East Subbasin

    California State Water Resources Control Board | October 25, 2016...
    Summary

    In accordance with the State Water Resources Control Board’s (SWRCB’s) Recycled Water Policy, the Upper Santa Clara River Integrated Regional Water Management Group (IRWMG),...

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  • Water Stress and a Changing San Joaquin Valley

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    Water Stress and a Changing San Joaquin Valley

    Public Policy Institute of California | March 1, 2017...
    Summary

    The San Joaquin Valley—California’s largest agricultural region, and an important contributor to the nation’s food supply—is in a time of great change and...

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