Opportunities to Improve the U. S. Geological Survey National Water Quality Assessment Program.

Front Matter -- Preface -- Contents -- Executive Summary -- 1 Introduction -- 2 Transition from Cycle I to Cycle II: Representativeness of Study Units -- 3 NAWQA Cycle II Goals-Status -- 4 NAWQA Cycle II Goals- Trends and Statistical Support for Understanding -- 5 NAWQA Cycle II Goals-Understanding -- 6 Communicating NAWQA Data and Information to Users -- 7 Cooperation and Coordination Issues -- 8 The Future of NAWQA -- Appendix A Extracts from Study-Unit Design Guidelines for Cycle II of the National Water Quality Assessment (NAWQA) -- Appendix B Biographical Information.