1. Contacts Advisory Committee on Water Information Mark A Limbaugh Asst. Secretary for Water and Science U.S. Department of the Interior Robert M. Hirsch, ACWI Alternate Chair Associate Director for Water, USGS Toni M. Johnson, ACWI Executive Secretary Chief, Water Information Coordination Program, USGS Judith B. Griffin, NWQMC Executive Secretary Committee Management Specialist, USGS

2. National Water Quality Monitoring Council NAWQA Liaison Committee Subcommittee on Hydrology Hydrology * Subcommittee on SpatialSpatial Water Data Advisory Committee on Water Information Subcommittees /Task Forces Methods Methods & Data Comparability Board Subcommittee on Sedimentation * Also reports to the Federal Geographic Data CommitteeFederal Geographic Data Committee Work Groups SWR Roundtable 2004 Task Force Cooperative Water Cooperative Program

3. COOP Task Force Ad Hoc Subcommittee TMDL Advisory Committee on Water Information Subcommittees /Task Forces Sunset Subgroups ACWI 2003 Meeting September 9 -10, 2003 Sunset the above Subgroups Streamgaging Streamgaging Task Force

4. Subcommittee Work Groups National Water Quality Monitoring Council Hydrology Standards Hydrologic Frequency Analysis Work Group Task Group on Hydrology Modeling Water Information Strategies Work Group Spatial Water Data Hydrologic Unit Delineation Methods and Data Comparability Board Collaboration and Outreach Work Group Watershed Components Interactions Work Group National Monitoring Network

5. Methods and Data Comparability Board Work Groups Biology and Microbiology Outreach and Publicity Water-Quality Data Elements Performance-Based Systems (PBS) National Environmental Methods Index (NEMI) Laboratory and Field Accreditation Nutrients New Technologies

6. ACWI Subgroups October 2004 - August 26, 2005