Cover -- Front Matter -- Preface -- Contents -- Executive Summary -- 1 Introduction -- 2 Conceptual Foundations for Water Quality Management -- 3 Waterbody Assessment: Listing and Delisting -- 4 Modeling to Support the TMDL Process -- 5 Adaptive Implementation for Impaired Waters -- Appendix A Guest Presentations at the First Meeting of the NRC Committee15 January 24-26, 2001 -- Appendix B Biographies of the Committee Members and NRC Staff.