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Regional Infiltration and Inflow Control Program |
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Library > Pilot Project Report Pilot Project Report
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View report table of contents. Warranty Inspection now posted. |
In December 1999 as part of the Regional Wastewater Services Plan (RWSP), the King County Council approved the development of a Regional Infiltration and Inflow (I/I) Control Program. The purposes of the program are to reduce the risk of sanitary sewer overflows and the cost of adding capacity to facilities that convey wastewater to County treatment plants.
In 2000, the County’s Wastewater Treatment Division, in cooperation with the local component agencies that it serves, launched an ambitious six-year $41-million I/I control study. Completion of ten pilot projects in January 2004 marks a major milestone in the study. These projects tested the effectiveness of various sewer rehabilitation technologies in reducing I/I in local agency collection systems. The projects demonstrated that I/I can be effectively reduced, depending on the location and method of rehabilitation. In 2005, the County will use the results of the pilot projects, along with other information, to prepare a long-term regional plan for reducing I/I in local agency systems.
The Executive Summary of the Pilot Project Report, Regional Infiltration and Inflow Control Program, King County, Washington gives an overview of the I/I control program and the experiences gained from the pilot projects. The rest of the report provides detailed information on project selection, design, construction, costs, and results. The information in the report is technical. Its purpose is not only to record what was done but also to serve as the basis for additional studies on the costs and benefits of I/I control measures.
For more information, please contact Erica Jacobs at (206) 684-1138 or Erica.Jacobs@kingcounty.gov.
If you need a free copy of the Adobe Acrobat Reader to view these documents (.pdf), visit the King County Acrobat help page.
Note: due to large file sizes, some portions of the report are posted on an FTP site for faster downloading. (To view a file, left clicking on a link will open a PDF file in your browser; right clicking gives you the option to use "Save Target As" to download the file to your computer.) If you have problems downloading these files, the Pilot Project Report is available on CD. Please contact staff listed at bottom of page.
Executive Summary, issued October 2004 (895 KB)
Report, issued October 2004 (10.4 MB, located on ftp site)
Title Page, Acknowledgements (18 KB)
Contents (26 KB)
Acronyms and Abbreviations (24 KB)
Chapter 1. Executive Summary (283 KB)
Chapter 2. I/I Pilot Project Selection (267 KB)
Chapter 3. Pilot Project SSES (87 KB)
Chapter 4. Rehabilitation Technology (53 KB)
Chapter 5. Pilot Project Design (277 KB)
Figures 5-2 to 5-25 (5.5 MB, located on ftp site)
Chapter 6. Bidding and Administration (83 KB)
Chapter 7. Construction (335 KB)
Figures 7-1 to 7-55 (3 MB, located on ftp site))
Chapter 8. Rehabilitation Effectiveness (401 KB)
Chapter 9. I/I Rehabilitation Project Costs and Lessons Learned (58 KB)
Glossary (34 KB)
Appendices, issued October 2004 (21.4 MB, located on ftp site)
Title Page, list of Appendices (18 KB)
Appendix A – I/I Pilot Project Candidate Nomination Forms (619 KB)
Appendix B – I/I Ronald Pilot Project Report (444 KB)
Appendix C – I/I Pilot Project Bid Tabulations (234 KB)
Appendix D – I/I Pilot Project Flow Monitoring (6 MB, located on ftp site)
Appendix E – I/I Pilot Project Rainfall Monitoring (758 KB)
Appendix F – I/I Pilot Project Model Calibration (13.4 MB, located on ftp site)
Warranty Inspection, August 2006 --
Supplement to the Pilot Project Report
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For questions about the
Updated: Aug. 24, 2006 |
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