CROMWELL, Geoffrey1, FAUNT, Claudia2, WOOLFENDEN, Linda R.3, ENGOTT, John A.3, LARSEN, Joshua D.3 and SWEETKIND, Donald4, (1)U.S. Geological Survey, California Water Science Center, 3130 Skyway Drive Suite 602, Santa Maria, CA 93455, (2)U.S. Geological Survey, California Water Science Center, 4165 Spruance Road, Suite 200, San Diego, CA 92101, (3)U.S. Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, (4)U.S. Geological Survey, Geosciences and Environmental Change Science Center, Mail Stop 980, Box 25046, Denver Federal Center, Denver, CO 80225