REEVES, Howard W.¹, FEINSTEIN, Daniel T.² and HOARD, Chris J.¹, (1)U.S. Geological Survey, USGS Michigan Water Science Center, 6520 Mercantile Way, Suite 5, Lansing, MI 48911-5991, (2)USGS Wisconsin Wter Science Center, 8505 Research Way, Middleton, WI 53562, hwreeves@usgs.gov, hwreeves@usgs.gov

KAHLE, Sue C.¹, BURNS, Erick², ELY, D. Matthew¹, HAYNES, Jonathan V.², MORGAN, David S.², ORZOL, Leonard L.², SENAY, Gabriel³, SNYDER, Daniel T.², VACCARO, John J.¹ and WELCH, Wendy¹, (1)Washington Water Science Center, U.S. Geological Survey, 934 Broadway Suite 300, Tacoma, WA 98402, (2)Oregon Water Science Center, U.S. Geological Survey, 2130 SW 5th Avenue, Portland, OR 97201, (3)Earth Resources Observation and Science (EROS), U.S. Geological Survey, Fort Collins, CO 80523, sckahle@usgs.gov, sckahle@usgs.gov

BROOKS, Lynette E., U.S. Geological Survey, UT Water Science Center, 2329 Orton Circle, Salt Lake City, UT 84119-2047 and MASBRUCH, Melissa D., U.S. Geological Survey, UT Water Science Center, 2329 W. Orton Circle, West Valley City, UT 84119, lebrooks@usgs.gov, lebrooks@usgs.gov

STARN, J. Jeffrey, US Geological Survey, 101 Pitkin Street, East Hartford, CT 06108, GREEN, Christopher T., US Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025, HINKLE, Stephen R., US Geological Survey, 10615 S.E. Cherry Blossom Drive, Portland, OR 97216 and THIROS, Susan A., US Geological Survey, 2329 W. Orton Circle, Salt Lake City, UT 84119, jjstarn@usgs.gov, jjstarn@usgs.gov

STANTON, Jennifer S., U.S. Geological Survey, Nebraska Water Science Center, Lincoln, NE 68512, QI, Sharon, USGS, Vancouver, WA 98683, PETERSON, Steven M., US Geological Survey, 5231 S. 19th Street, Lincoln, NE 68512, HOUSTON, Natalie A., U.S. Geological Survey, Texas Water Science Center, Austin, TX 78754, FALK, Sarah E., U.S Geological Survey, New Mexico Water Science Center, Albuquerque, NM 87109 and CHRISTENSON, Scott C., U.S. Geologic Survey, New Mexico Water Science Center, 5338 Montgomery Blvd NE, Albuquerque, NM 87109, sefalk@usgs.gov, sefalk@usgs.gov

DAUSMAN, Alyssa M., U.S. Geological Survey, 3110 SW 9th Ave, Fort Lauderdale, FL 33315 and WILLIAMS, Lester, U.S. Geological Survey, 3039 Amwiler Rd, Suite 130, Atlanta, GA 30360, adausman@usgs.gov, adausman@usgs.gov

HUTCHISON, William, Texas Water Development Board, PO Box 13231, Austin, TX 78711, bill.hutchison@twdb.state.tx.us, bill.hutchison@twdb.state.tx.us

PETERSON, Steven M., US Geological Survey, 5231 S. 19th Street, Lincoln, NE 68512, speterson@usgs.gov, speterson@usgs.gov

DENNEHY, Kevin F., Office of Groundwater, U.S. Geological Survey, 411 National Center, Reston, VA 20192, REEVES, Howard W., USGS Michigan Water Science Center, U.S. Geological Survey, 6520 Mercantile Way, Suite 5, Lansing, MI 48911-5991, FAUNT, Claudia C., U.S. Geological Survey, 4165 Spruance Road, Suite 200, San Diego, CA 92101, CAMPBELL, Bruce G., U.S. Geological Survey, South Carolina Water Science Center, Stephenson Center, Suite 129, 720 Gracern Road, Columbia, SC 29210, CLARK, Brian R., U.S. Geological Survey, Lower Mississippi-Gulf Water Science Center, 700 W. Research Center Blvd., Fayetteville, AR 72701 and PASCHKE, Suzanne, Colorado Water Science Center, U.S Geological Survey, Mailstop 415 Building 53, room F2020, Denver Federal Center, Lakewood, CO 80225-0001, kdennehy@usgs.gov, kdennehy@usgs.gov

AGGARWAL, Pradeep, ARAGUAS-ARAGUAS, Luis, NEWMAN, Brent, KURTTAS, Tuerker, DUNNING, Charles, GREMILLON, Paul and TERZER, Stefan, International Atomic Energy Agency, Wagramer Str 5, Vienna, A1400, Austria, p.aggarwal@iaea.org, p.aggarwal@iaea.org