The Borrego - Central Desert - Low Use Basins of the Desert Study Unit was sampled between 12/2/2010 and 3/4/2010; 52 wells were sampled.
The study unit consists of 3 study areas:
• Borrego Basin
• Central Desert Basin
• Low Use Basins of the Desert
The study unit is within the San Bernardino, Kern, Los Angeles, Riverside San Diego and Imperial counties.
Press release: USGS scientists to discuss upcoming Borrego, desert groundwater study 11/26/2008