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Surface Water Flow Management Annual Reports

Annual Flow Management report is a compilation of hydrographic data collected by cooperating agencies and prepared by Clean Water Services, in cooperation with Water Resources Department, District 18 Watermaster.

The Tualatin River Flow Management Technical Committee started in 1987 and since then it has provided a mechanism to coordinate and manage the flow in the Tualatin River.

Tualaltin River

Committee members are technical staff with detailed knowledge of specific flow characteristics in this river. This committee meets every month to review hydrographs and current status of the reservoirs, and also to discuss a variety of other water issues and problems.

Each member updates the committee on any and all changes that could impact the flow management of the Tualatin Basin.

This report is a compilation of hydrographic data collected by the cooperating entities and prepared by Clean Water Services, Watershed

Management Division, in cooperation with Oregon Water Resources District 18 Watermaster.

2020 Annual Report image
2019 Tualatin River Flow Management report image
Flow Report 2021 (PDF 8.09 MB)
Flow Report 2020 (PDF 8.52 MB)
Flow Report 2019 (PDF 7.78 MB)
Flow Report 2018 (PDF 9.62 MB)
Flow Report 2017 (PDF 8.03 MB)
Flow Report 2016 (PDF 4.43 MB)
Flow Report 2015 (PDF 3.31 MB)
Flow Report 2014 (PDF 3.33 MB)
Flow Report 2013 (PDF 4.41 MB)
Flow Report 2012 (PDF 4.65 MB)
Flow Report 2011 (PDF 4.73 MB)
Flow Report 2010 (PDF 5.46 MB)
Flow Report 2009 (PDF 5.03 MB)
Flow Report 2008 (PDF 4.53 MB)
Flow Report 2007 (PDF 4.69 MB)
Flow Report 2006 (PDF 4.42 MB)
Flow Report 2005 (PDF 4.41 MB)
Flow Report 2004 (PDF 4.28 MB)
Flow Report 2003 (PDF 4.42 MB)
Flow Report 2002 (PDF 3.47 MB)
Flow Report 2001 (PDF 3 MB)
Flow Report 2000 (PDF 9.08 MB)
Flow Report 1999 (PDF 2.58 MB)
Flow Report 1998 (PDF 1.93 MB)
Flow Report 1997 (PDF 5.86 MB)
Flow Report 1996 (PDF 5.82 MB)
Flow Report 1995 (PDF 4.05 MB)
Flow Report 1994 (PDF 3.37 MB)
Flow Report 1993 (PDF 746.33 KB)
Flow Report 1992 (PDF 4.06 MB)