Groundwater-quality data in seven GAMA study units results from initial sampling, 2004-2005, and resampling, 2007-2008, of wells : California GAMA Program Priority Basin Project

by Kent, Robert.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 2014

Groundwater quality in the Upper Santa Ana Watershed study unit, California

by Kent, Robert.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, California Water Science Center, 2012

Concentrations of dissolved solids and nutrients in water sources and selected streams of the Santa Ana Basin, California, October 1998-September 2001

by Kent, Robert (Hydrologist)
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; U.S. Geological Survey, Information Services [distributor], 2004

Ground-water quality data in the Upper Santa Ana Watershed Study Unit, November 2006-March 2007 results from the California GAMA Program

by Kent, Robert (Hydrologist)
Published: U.S. Geological Survey, 2009

Variations on a method for evaluating decadal-scale changes in the groundwater quality of two GAMA coastal study units, 2004-14, California GAMA Priority Basin Project

by Kent, Robert (Hydrologist),
Published: U.S. Department of the Interior, U.S. Geological Survey, 2018

Status of groundwater quality in the upper Santa Ana watershed, November 2006-March 2007 : California GAMA Priority Basin Project

by Kent, Robert (Hydrologist),
Published: U.S. Department of the Interior, U.S. Geological Survey, 2012