2004 Report to Congress

This report presents a comprehensive characterization of combined sewer overflows (CSOs) and sanitary sewer overflows (SSOs), including:

• the extent to which they cause environmental and human health impacts,
• technologies used by municipalities to address their impacts, and
• resources spent by municipalities to control CSO and SSO discharges. 

There is a brief fact sheet available for review as well. For convenience, the report has been divided and can be downloaded into sections if desired. The entire full report is also available to be downloaded and viewed below.

• 2004 Report to Congress - Fact Sheet (PDF)(2 pp, 15 K, August 2004, 833-R-04-001)
• 2004 Report to Congress on Impacts and Control of Combined Sewer Overflows and Sanitary Sewer Overflows (full) (PDF)(640 pp, 19 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Cover and Table of Contents (PDF)(19 pp, 558 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Executive Summary (PDF)(11 pp, 2 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 1: Introduction (PDF)(5 pp, 100 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 2: Background (PDF)(11 pp, 2 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 3: Methodology (PDF)(12 pp, 153 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 4: Characterization of CSOs and SSOs (PDF)(30 pp, 3 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 5: Environmental Impacts of CSOs and SSOs (PDF)(27 pp, 435 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 6: Human Health Impacts of CSOs and SSOs (PDF)(26 pp, 173 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 7: Federal and State Efforts to Control CSOs and SSOs (PDF)(12 pp, 188 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 8: Technologies Used to Reduce the Impacts of CSOs and SSOs (PDF)(24 pp, 247 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 9: Resources Spent to Address the Impacts of CSOs and SSOs (PDF)(14 pp, 123 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Chapter 10: Conclusions and Future Challenges (PDF)(6 pp, 105 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - References (PDF)(11 pp, 99 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix A: Statutes, Policies, and Interpretive Memoranda (PDF)(29 pp, 4 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix B: Human Health Expert and Stakeholder Meeting Summaries (PDF)(33 pp, 195 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix C: Documentation of State and Municipal Interviews (PDF)(4 pp, 42 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix D: List of Active CSO Permits (PDF)(18 pp, 205 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix E: GPRACSO Model Documentation (PDF)(9 pp, 77 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix F: Analysis of CSO Receiving Waters Using the National Hydrography Dataset (NHD) (PDF)(9 pp, 3 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix G: National Estimate of SSO Frequncy and Volume (PDF)(10 pp, 87 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix H: Estimation of SSO Impacts in Streams and Rivers (PDF)(5 pp, 44 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix I: Human Health Addendum (PDF)(31 pp, 171 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix J: Estimated Annual Illness Burden Resulting from Exposure to CSOs and SSOs at BEACH Survey Beaches (PDF)(16 pp, 115 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix K: Summary of Enforcement Actions (PDF)(83 pp, 706 K, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix L: Technology Descriptions (PDF)(171 pp, 3 MB, August 2004, 833-R-04-001)
• 2004 Report to Congress - Appendix M: Financial Information (PDF)(12 pp, 77 K, August 2004, 833-R-04-001)