1. Student Contractor to the U.S. Geological Survey Golden CO USA
2. Now at U.S. Geological Survey Water Mission Area Golden CO USA
3. Pacific Northwest National Laboratory Earth Systems Science Division Environmental Subsurface Science Group Richland WA USA
4. U.S. Geological Survey Water Mission Area Denver Federal Center Denver CO USA
5. U.S. Geological Survey Water Mission Area Storrs CT USA
6. U.S. Geological Survey Water Mission Area Reston VA USA
7. Environmental Protection Agency Office of Research and Development Center for Public Health and Environmental Assessment Pacific Ecological Systems Division Pacific Coast Ecology Branch Newport OR USA