This Report to Congress summarizes information reported by the states in 1998 describing the condition of their assessed waters, as required under Section 305(b) of the Clean Water Act. Report package contents:

• Executive Summary
• Chapter 1 - Introduction
• Chapter 2 - Monitoring and Assessment
• Chapter 3 - Rivers and Streams
• Chapter 4 - Lakes, Ponds, and Reservoirs
• Chapter 5 - Coastal Resources - Tidal Estuaries, Shoreline Waters, and Coral Reefs
• Chapter 6 - Wetlands
• Chapter 7 - Ground Water Quality
• Chapter 8 - Public Health and Aquatic Life Concerns
• Chapter 9 - Costs and Benefits of Water Quality Protection
• Chapter 10 - Controlling Nonpoint Sources
• Chapter 11 - State and Tribal Recommendations
• Chapter 12 - State and Territory Summaries
• Chapter 13 - Tribal Summaries
• Chapter 14 - Commission Summaries
• Appendices from the National Water Quality Inventory (Appendices from the National Water Quality Inventory (EXCEL versions)(239 K) )

Fact Sheet and Report Package Files:

• Fact Sheet: 1998 National Water Quality Inventory Report to Congress (PDF)(2 pp, 25 K, June 2000, EPA 841-F-00-006)
• The Quality of Our Nation's Waters (brochure) (PDF)(20 pp, 256 K, June 2000, EPA841-S-00-001)
  A Summary of the National Water Quality Inventory: 1998 Report to Congress
• 1998 National Water Quality Inventory Report to Congress (PDF)(631 pp, 14 MB, 2000)