These documents summarize the results of EPA's thirteenth national Clean Watersheds Needs Survey.
You may need a PDF 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)