KARUK TRIBE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES P.O. Box 282 * Orleans, California 95556 2006 WATER QUALITY ASSESMENT REPORT KLAMATH RIVER, SALMON RIVER, SCOTT RIVER, AND SHASTA RIVER Karuk Tribe of California Water Quality Assessment Report 2006 Prepared by Karuk Tribe of California Water Resources March 2007 Technical Staff Susan Corum - Water Resources Coordinator Joe Hostler - Water Quality Biologist Grant Johnson - Water Quality Biologist Luana Hillman - Water Quality Technician II ............................................................................................................................................................ 1. BACKGROUND .......................................................................................................................5 2. PURPOSE..................................................................................................................................5 3 . MONITORING METHODS & QA/QC Summary ...............................................................6 3.1 Quality Assurance ....................................................................................................................... 6 4. WATER QUALITY PARAMETERS.....................................................................................7 4.1 Water Temperature...................................................................................................................... 7 4.2 Dissolved Oxygen ....................................................................................................................... 7 4.3 pH/Alkalinity............................................................................................................................... 8 4.4 Specific Conductance .................................................................................................................. 8 4.5 Flow............................................................................................................................................. 9 5. WATER QUALITY STATIONS.............................................................................................9 5.1 Klamath River Stations.............................................................................................................. 11 5.1.1 Below Iron Gate Dam ...................................................................................................................11 5.1.2 Near Siead Valley..........................................................................................................................14 5.1.3 Near Orleans..................................................................................................................................16 5.2 Tributaries.................................................................................................................................. 17 5.2.1 Salmon River .................................................................................................................................19 5.2.2 Scott River .....................................................................................................................................21 5.2.3 Shasta River...................................................................................................................................23 6. RESULTS ................................................................................................................................25 6.1 Klamath River ........................................................................................................................... 25 6.1.1 Near Iron Gate Dam .....................................................................................................................25 6.1.1.1 Water Temperature.....................................................................................................................25 6.1.1.2 Dissolved Oxygen ......................................................................................................................26 6.1.1.3 pH...............................................................................................................................................27 6.1.1.4 Specific Conductance.................................................................................................................28 6.1.1.5 Flow ...........................................................................................................................................28 6.1.2 Near Seiad Valley..........................................................................................................................30 6.1.2.1 Water Temperature.....................................................................................................................30 6.1.2.2 Dissolved Oxygen ......................................................................................................................31 6.1.2.3 pH...............................................................................................................................................32 6.1.2.4 Specific Conductance.................................................................................................................33 6.1.2.5 Flow ...........................................................................................................................................33 6.1.3 Near Orleans..................................................................................................................................34 6.1.3.1 Water Temperature.....................................................................................................................34 6.1.3.2 Dissolved Oxygen ......................................................................................................................35 6.1.3.3 pH...............................................................................................................................................36 6.1.3.4 Specific Conductance.................................................................................................................37 6.1.3.5 Flow ...........................................................................................................................................37 6.2 Tributaries.................................................................................................................................. 38 6.2.1 Shasta River...................................................................................................................................38 6.2.1.1 Water Temperature.....................................................................................................................38 6.2.1.2 Dissolved Oxygen ......................................................................................................................39 6.2.1.3 pH...............................................................................................................................................40 6.2.1.4 Specific Conductance.................................................................................................................41 6.2.1.5 Flow ...........................................................................................................................................42 6.2.2 Scott River .....................................................................................................................................43 6.2.2.1 Water Temperature.....................................................................................................................43 6.2.2.2 Dissolved Oxygen ......................................................................................................................44 6.2.2.3 pH...............................................................................................................................................45 6.2.2.4 Specific Conductance.................................................................................................................46 6.2.2.5 Flow ...........................................................................................................................................46 6.2.3 Salmon River .................................................................................................................................47 6.2.3.1 Water Temperature.....................................................................................................................47 6.2.3.2 Dissolved Oxygen ......................................................................................................................48 6.2.3.3 pH...............................................................................................................................................49 6.2.3.4 Specific Conductance.................................................................................................................50 6.2.3.5 Flow ...........................................................................................................................................50 7.0 DISCUSSION ........................................................................................................................51 KARUK TRIBE OF CALIFORNIA KLAMATH RIVER, SALMON RIVER, SCOTT RIVER & SHASTA RIVER WATER QUALITY ASSESMENT REPORT JUNE - OCTOBER 2006 1. BACKGROUND The Karuk Tribe of California is the second largest Tribe in California, with over 3,500 Tribal members currently enrolled. The Karuk Tribe is located along the middle Klamath