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Program Library
Welcome to the CSI Program Library. You will need a PDF reader to view documents on this page.
Program Update, June 2007
 This regional Conveyance System Improvement Program Update implements conveyance policies contained in the Regional Wastewater Services Plan (RWSP), adopted by the King County Council in 1999. The update identifies projects needed for increasing capacity in the conveyance system to accommodate population growth; and, also provides a status on the County’s asset management program for replacing or substantially rehabilitating deteriorated portions of the system. It then lays out a schedule and budget for these projects.
Component (local) sewer agencies were instrumental in helping to identify conveyance needs, and prioritize projects through their participation on MWPAAC’s Engineering and Planning (E&P) Subcommittee and through one-on-one meetings with Wastewater Treatment Division staff.
Cruise Ship Wastewater Management Report, August 2007
 In April 2007, the King County Council passed Motion No. 12498, which directed the Wastewater Treatment Division to work cooperatively with the Port of Seattle (external link) and other affected
agencies to undertake a study of the potential for processing marine cruise industry-generated
wastewater through the county's wastewater treatment system. The Council’s Motion directed
that the following elements be included in the study:
- Impacts to the environment that can be avoided through the diversion, of waste from cruise
ships through the county's wastewater management system;
- The capacity of the county's wastewater treatment system to receive and process the
volumes of waste generated by the marine cruise ships which visit local port facilities, now
and in the future;
- A summary of piping, coupling and other mechanisms needed to channel waste from
visiting cruise ships to the county's wastewater management system;
- Any displaced future opportunity for wastewater processing capacity utilization by resident
users of the wastewater management system;
- Costs for waste diversion, and any appropriate financial arrangements to address costs;
- Economic or other impacts to the cruise ship industry; and
- A recommendation regarding any appropriate council action.
View Cruise Ship Wastewater Management Report, August 2007 (. PDF file, 648KB).
Back to top. Initial CSI Basin Planning, 1999-2003
 Initial CSI wastewater basin planning for the county's regional basins was completed in 2003. The focus of the CSI program was to develop approaches to upgrading and improving the level of service of the regional conveyance system for the 34 local sewer agencies in King and Snohomish Counties. The five-year planning effort began in 1999 and includes the following documents, tools and background information:
- newsletters
- service area planning documents
- miscellaneous reports
- system planning tools, including Tabula Rasa
- planning approach, 1999-2003
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