Geyer, Nancy A. South Umpqua River Watershed Assessment and Action Plan. Prepared for the Umpqua Basin Watershed Council. Roseburg, Oregon. November 2003.
Oregon Department of Environmental Quality. Assessment Methodology for Oregon's 2004 Integrated Report on Water Quality Status. Retrieved March 22, 2006 from http://www.deq.state.or.us/wq/303dlist/docs/AssessmentMethodology2004.pdf
Oregon Department of Environmental Quality. Oregon Water Quality Index Summary Report, Water Years 1995-2004. Retrieved May 5, 2006 from http://www.deq.state.or.us/lab/wqm/docs/OWQISummary04.pdf
Water Quality Monitoring Technical Guidebook. Oregon Plan for Salmon and Watersheds. July 1999. http://www.oregon.gov/OWEB/docs/pubs/wq_mon_guide.pdf
Personal Communication: Paul Heberling, Oregon Department of Environmental Quality, Roseburg, Oregon.