Assessing potential effects of oil and gas development activities on groundwater quality near and overlying the Elk Hills and North Coles Levee Oil Fields, San Joaquin Valley, California

• John G. Warden ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: jwarden@usgs.gov

  Affiliation U.S. Geological Survey, Austin, Texas, United States of America

  https://orcid.org/0000-0003-1384-458X

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• Matthew K. Landon,

  Roles Conceptualization, Formal analysis, Investigation, Writing – review & editing

  Affiliation U.S. Geological Survey, San Diego, California, United States of America

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• Michael J. Stephens,

  Roles Conceptualization, Data curation, Formal analysis, Methodology, Visualization, Writing – review & editing

  Affiliation U.S. Geological Survey, Sacramento, California, United States of America

  https://orcid.org/0000-0001-8995-9928

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• Tracy A. Davis,

  Roles Data curation, Formal analysis, Investigation

  Affiliation U.S. Geological Survey, San Diego, California, United States of America

  https://orcid.org/0000-0003-0253-6661

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• Janice M. Gillespie,

  Roles Formal analysis, Writing – review & editing

  Affiliation U.S. Geological Survey, San Diego, California, United States of America

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• Peter B. McMahon,

  Roles Formal analysis, Writing – review & editing

  Affiliation U.S. Geological Survey, Lakewood, Colorado, United States of America

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• Justin T. Kulongoski,

  Roles Conceptualization, Formal analysis, Writing – review & editing

  Affiliation U.S. Geological Survey, San Diego, California, United States of America

  https://orcid.org/0000-0002-3498-4154

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• Andrew G. Hunt,

  Roles Formal analysis, Writing – review & editing

  Affiliation U.S. Geological Survey, Lakewood, Colorado, United States of America

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• David H. Shimabukuro,

  Roles Data curation, Formal analysis, Investigation

  Affiliation Department of Geology, California State University, Sacramento, Sacramento, California, United States of America

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• Riley S. Gannon,

  Roles Writing – review & editing

  Affiliation U.S. Geological Survey, San Diego, California, United States of America

  https://orcid.org/0000-0002-1239-1083

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• Lyndsay B. Ball

  Roles Writing – review & editing

  Affiliation U.S. Geological Survey, Denver, Colorado, United States of America

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