WOOLFENDEN, Linda R.1, BALL, Lyndsay B.
2, BEDROSIAN, Paul A.
2, CROMWELL, Geoffrey
3, O'LEARY, D.R.
4, MILLER, David M.
5, BUESCH, D.C.
5 and DENSMORE, J.N.
6, (1)U.S. Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, (2)Crustal Geophysics and Geochemistry Science Center, U.S. Geological Survey, Denver Federal Center, Bldg 20, MS 964, Denver, CO 80225, (3)United States Geological Survey, California Water Science Center, 4165 Spruance Rd Suite 200, San Diego, CA 92101, (4)California Water Science Center, U.S. Geological Survey, 4165 Spruance Road, Suite 200, San Diego, CA 92101, (5)Geology, Minerals, Energy, & Geophysics Science Center, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025, (6)California Water Science Center, U. S. Geological Survey, 6000 J Street Placer Hall, Sacramento, CA 95819, lrwoolfe@usgs.gov