Publications
The following list of California Water Science Center publications includes both official USGS publications and journal articles authored by our scientists.
Filter Total Items: 1847
Hydrogeologic characterization of the Yucaipa groundwater subbasin Hydrogeologic characterization of the Yucaipa groundwater subbasin
Authors
Geoffrey Cromwell, John A. Engott, Ayman H. Alzraiee, Christina L. Stamos, Gregory Mendez, Meghan C. Dick, Sandra Bond
Perfluoroalkyl and polyfluoroalkyl substances in groundwater used as a source of drinking water in the eastern United States Perfluoroalkyl and polyfluoroalkyl substances in groundwater used as a source of drinking water in the eastern United States
In 2019, 254 samples were collected from five aquifer systems to evaluate per- and polyfluoroalkyl substance (PFAS) occurrence in groundwater used as a source of drinking water in the eastern United States. The samples were analyzed for 24 PFAS, major ions, nutrients, trace elements, dissolved organic carbon (DOC), volatile organic compounds (VOCs), pharmaceuticals, and tritium. Fourteen...
Authors
Peter B. McMahon, Andrea K. Tokranov, Laura M. Bexfield, Bruce D. Lindsey, Tyler D. Johnson, Melissa A. Lombard, Elise Watson
Simulation of groundwater and surface-water resources of the San Antonio Creek Valley watershed, Santa Barbara County, California Simulation of groundwater and surface-water resources of the San Antonio Creek Valley watershed, Santa Barbara County, California
In the San Antonio Creek Valley watershed (SACVW), western Santa Barbara County, California, groundwater is the primary source of water for agricultural irrigation, the town of Los Alamos, and supplemental water to Vandenberg Space Force Base (VSFB). Groundwater pumpage has increased since the 1970s as non-irrigated agricultural land has been converted to irrigated land and as local...
Authors
Linda R. Woolfenden, John A. Engott, Joshua Larsen, Geoffrey Cromwell
Hydrogeologic characterization of the San Antonio Creek Valley watershed, Santa Barbara County, California Hydrogeologic characterization of the San Antonio Creek Valley watershed, Santa Barbara County, California
The San Antonio Creek Valley watershed (SACVW) is located in western Santa Barbara County, about 15 miles south of Santa Maria and 55 miles north of Santa Barbara, California. The SACVW is about 135 square miles and encompasses the San Antonio Creek Valley groundwater basin; the SACVW is separated from adjacent groundwater basins by the Casmalia and Solomon Hills to the north, and the...
Authors
Geoffrey Cromwell, Donald S. Sweetkind, Jill N. Densmore, John A. Engott, Whitney A. Seymour, Joshua Larsen, Christopher P. Ely, Christina L. Stamos, Claudia C. Faunt
Hydrologic and geochemical characterization of the Petaluma River watershed, Sonoma County, California Hydrologic and geochemical characterization of the Petaluma River watershed, Sonoma County, California
Authors
Jonathan A. Traum, Nicholas F. Teague, Donald S. Sweetkind, Tracy Nishikawa
Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California
The Yucaipa groundwater subbasin (referred to in this report as the Yucaipa subbasin) is located about 75 miles (mi) east of of Los Angeles and about 12 mi southeast of the City of San Bernardino. In the Yucaipa subbasin, as in much of southern California, limited annual rainfall and large water demands can strain existing water supplies; therefore, understanding local surface water and
Authors
Geoffrey Cromwell, Jonathan C. Matti
Use case development for earth monitoring, analysis, and prediction (EarthMAP)—A road map for future integrated predictive science at the U.S. Geological Survey Use case development for earth monitoring, analysis, and prediction (EarthMAP)—A road map for future integrated predictive science at the U.S. Geological Survey
Authors
Tamara Wilson, Mark T. Wiltermuth, Karen E. Jenni, Robert Horton, Randall J. Hunt, Dee M. Williams, Vivian P. Nolan, Nicholas G. Aumen, David S. Brown, Kyle W. Blasch, Peter S. Murdoch
Climate and land change impacts on future managed wetland habitat: A case study from California’s Central Valley Climate and land change impacts on future managed wetland habitat: A case study from California’s Central Valley
Concept
Authors
Tamara Wilson, Elliott Matchett, Kristin B. Byrd, Erin Conlisk, Matthew E. Reiter, Cynthia Wallace, Lorraine E. Flint, Alan L. Flint, Monica Mei Jeen Moritsch
Watershed-scale risk to aquatic organisms from complex chemical mixtures in the Shenandoah River Watershed-scale risk to aquatic organisms from complex chemical mixtures in the Shenandoah River
River waters contain complex chemical mixtures derived from natural and anthropogenic sources. Aquatic organisms are exposed to the entire chemical composition of the water, resulting in potential effects at the organismal through ecosystem level. This study applied a holistic approach to assess landscape, hydrological, chemical, and biological variables. On-site mobile laboratory...
Authors
Larry B. Barber, Kaycee E. Faunce, David Bertolatus, Michelle L. Hladik, Jeramy Roland Jasmann, Steffanie H. Keefe, Dana W. Kolpin, Michael T. Meyer, Jennifer L. Rapp, David A. Roth, Alan M. Vajda
Relative bias in catch among long-term fish monitoring surveys within the San Francisco Estuary Relative bias in catch among long-term fish monitoring surveys within the San Francisco Estuary
Fish monitoring gears rarely capture all available fish, an inherent bias in monitoring programs referred to as catchability. Catchability is a source of bias that can be affected by numerous aspects of gear deployment (e.g., deployment speed, mesh size, and avoidance behavior). Thus, care must be taken when multiple surveys—especially those using different sampling methods—are combined...
Authors
Brock Huntsman, Brian Mahardja, Samuel M. Bashevkin
San Francisco Estuary chlorophyll sensor and sample analysis intercomparison San Francisco Estuary chlorophyll sensor and sample analysis intercomparison
This report presents an assessment of chlorophyll collection methods and anonymous results of field and laboratory comparisons in 2018 - 2019 by agencies in the San Francisco Estuary (SFE). The methods assessment and comparison exercises, with funding provided by the Delta Regional Monitoring Program and Bay Nutrient Management Strategy and in-kind contributions from participating...
Authors
Elizabeth B. Stumpner, Jamie S. Yin, Matthew Heberger, Jing Wu, Adam Wong, John Franco Saraceno