Water Quality Report Malheur River Basin Total Maximum Daily Load (TMDL) and Water Quality Management Plan (WQMP) September 2010 Last Updated: 09/2010 DEQ 10-WQ-023 This report prepared by: Oregon Department of Environmental Quality 811 SW 6th Avenue Portland, OR 97204 1-800-452-4011 www.oregon.gov/deq Primary Authors: John Dadoly and Ryan Michie For more information contact: John Dadoly, Basin Coordinator 700 SE Emigrant Avenue, Suite 330 Pendleton, OR 97801 (541) 278-4616
[email protected] Cheryll Hutchens-Woods, Water Quality Manager Oregon Department of Environmental Quality 700 SE Emigrant Avenue, Suite 330 Pendleton, OR 97801 (541) 278-4619
[email protected] Eugene Foster, Manager of Watershed Management Section Oregon Department of Environmental Quality 811 SW 6th Avenue Portland, OR 97204 (503) 229-5325
[email protected] Malheur River Basin TMDL September 2010 Table of Contents Executive Summary Chapter 1 Introduction Chapter 2 Scope of TMDL Chapter 3 Basin Assessment Chapter 4 Pollutant Sources Chapter 5 Summary of Current and Past Pollution Control Efforts Chapter 6 Dissolved Oxygen, Chlorophyll a, pH, and Phosphorus Chapter 7 Bacteria Chapter 8 Pesticides Chapter 9 Temperature Water Quality Management Plan Appendix A Bacteria TMDL Technical Information Appendix B Temperature TMDL Technical Data Appendix C Baseline Beneficial Use Status of the Malheur River Basin Appendix D Quality Assurance Project Plan/Sample & Analysis Plan: Malheur River Basin TMDL Nutrient Water Quality Study