The mission of the USGS is to provide scientific information about the Earth and its processes to help people understand and manage the environment, natural resources, and natural hazards.
California Water Science Center scientists Dina Saleh and Joseph Domagalski discuss water-quality data collected in the Sacramento–San Joaquin Delta. By...
Effects from the two July 2019 Ridgecrest earthquakes were observed in several USGS continuous groundwater-level monitoring sites in California, Nevada,...
In recent years, invasive aquatic plants have increased exponentially in the shallow waters of California’s Sacramento-San Joaquin River Delta, clogging...
By the USGS Extensive groundwater withdrawal from the unconsolidated deposits in the San Joaquin Valley caused widespread aquifer-system compaction and...
