These documents summarize the results of EPA's thirteenth national Clean Watersheds Needs Survey.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Executive Summary (PDF)(8 pp, 308 K)
- Cover (PDF)(3 pp, 316 K)
- Contents (PDF)(9 pp, 85 K)
- Acronyms (PDF)(1 pg, 45 K)
- CWNS Terminology (PDF)(2 pp, 48 K)
- Chapter 1 - Introduction (PDF)(8 pp, 148 K)
- Chapter 2 - Methods for Documenting Needs (PDF)(6 pp, 94 K)
- Chapter 3 - Key Results (PDF)(18 pp, 2 MB)
- Chapter 4 - Sanitary Sewer Overflows (PDF) (PDF)(4 pp, 597 K)
- Chapter 5 - Watershed-Based Needs Accounting (PDF)(8 pp, 998 K)
- Chapter 6 - Concluding Remarks (PDF)(4 pp, 805 K)
- Glossary (PDF)(6 pp, 63 K)
- Bibliography (PDF)(2 pp, 38 K)
- Appendix A - Summary of CWNS 2000 Cost Estimates (PDF)(28 pp, 248 K)
- Appendix B - Summary of 1996 CWNS Cost Estimates (PDF)(6 pp, 73 K)
- Appendix C - Summary of CWNS 2000 Technical Information (PDF)(14 pp, 129 K)
- Appendix D - Nonpoint Source Pollution Control Modeled Estimate (PDF)(8 pp, 154 K)
- Appendix E - Storm Water Management Program Modeled Estimates (PDF)(4 pp, 88 K)
- Appendix F - Summary of CWNS 2000 Cost Estimates by Watershed (PDF)(4 pp, 51 K)
- Appendix G - CWNS 2000 Needs Categories (PDF)(4 pp, 51 K)
- Appendix H - List of Acceptable Documentation Types (PDF)(6 pp, 74 K)
- Appendix I - Summary of Tribal Cost Estimates and Technical Data (PDF)(6 pp, 68 K)