Caldor (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Berkeley Lab scientist Jasquelyn Peña, postdoc Kyounglim Kang, and U.S. Forest Service Hydrologist Vince Pacific collect water samples from a creek in Capps Creek Crossing. Credit Berkeley Lab Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.