Regional Infiltration and Inflow Control Program

Resource Center and Document Library

Welcome to the resource center and document library. We will be continually adding new material to this page so keep checking back with us.

• Reports
• Flyers and graphics
• Reference documents for RFPs (separate Web page)
• Standards and guidelines (separate Web page)
• Workshop summaries (separate Web page)
• Program policies (separate Web page)
• Archived news releases (separate Web page)

You will need Adobe Acrobat Reader to view these documents (.pdf); visit the King County Acrobat help page for more information to download and install the free reader. For some documents, the file size (in KB or MB) is shown. CDs of documents are available - contact us.

Reports   back to top

Executive's Recommended Regional Infiltration and Inflow Control Program, December 2005 Benefit/Cost Analysis Report, November 2005 Regional Needs Assessment Report, March 2005 Alternatives/Options Report, March 2005 Pilot Project Report, October 2004 Warranty Inspection, August 2006 -- Supplement to the Pilot Project Report 2001/2002 Wet Weather Flow Monitoring Technical Memorandum, June 2002 (8.9 MB). Report with appendices is available on CD. 2000/2001 Wet Weather Flow Monitoring Technical Memorandum, May 2001 (9.1 MB). Report with appendices is available on CD. RWSP Operational Master Plan and Ordinance 13680, December 1999 (Located on the Regional Wastewater Services Plan Web site)

Flyers and Graphics    back to top

	Program Flyer, December 2002 (423 KB).
	Sources of Infiltration and Inflow. Click image for larger view.
	Maximum calculated 20-year peak infiltration and inflow hourly flow rates in the King County system. The data for the following three maps is based on flow monitoring conducted in 2000/2001 and 2001/2002, documented in the Wet Weather Flow Monitoring reports. Local agency boundary-- click image for larger view. Also available as Acrobat PDF (590KB)
	Model basins-- click image for larger view. Also available as Acrobat PDF (634KB)
	Mini basins-- click image for larger view. Also available as Acrobat PDF (674KB)

Requesting copies of reports

To request copies of reports on CD, please contact Valerie Garza at valerie.garza.metrokc.gov or 206-263-6070.

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For questions about the I/I Control Program Web site, please contact Maryann Petrocelli at 206-263-7321 or maryann.petrocelli@kingcounty.gov.

Department of Natural Resources and Parks
Wastewater Treatment Division

Updated: Jan. 15, 2008

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