Inland Rogue Agricultural Water Quality Management Area Plan Developed by the: Inland Rogue Local Advisory Committee Oregon Department of Agriculture With support from the: Jackson, Two Rivers, and Illinois Valley Soil and Water Conservation Districts February 28, 2018 Oregon Department of Agriculture Water Quality Program 635 Capitol Street NE Salem, Oregon 97301 Phone: (503) 986-4700 oda.direct/AgWQPlans Jackson SWCD 89 Alder St., Central Point, OR 97502 (541) 664-1070 https://jswcd.org/ Two Rivers (Josephine) SWCD 1440 Parkdale Drive, Grants Pass, OR 97527 (541) 474-6840 Illinois Valley SWCD PO Box 352 102 S Redwood Highway Cave Junction, OR 97523 (541) 592-3731 http://www.ivstreamteam.org/ Inland Rogue Agricultural Water Quality Management Area Plan February 6, 2018 Table of Contents Acronyms and Terms Used in this Document ............................................................................... i Foreword .................................................................................................................................................. ii Required Elements of Area Plans .................................................................................................... ii Plan Content ............................................................................................................................................ ii Chapter 1: Agricultural Water Quality Management Program Purpose and Background ........................................................................................................................................... 1 1.1 Purpose of Agricultural Water Quality Management Program and Applicability of Area Plans ........................................................................................................................................................... 1 1.2 History of the Ag Water Quality Program ................................................................................. 1 1.3 Roles and Responsibilities .............................................................................................................. 2 1.3.1 Oregon Department of Agriculture ........................................................................................................ 2 1.3.2 Local Management Agency ........................................................................................................................ 5 1.3.3 Local Advisory Committee ......................................................................................................................... 5 1.3.4 Agricultural Landowners ........................................................................................................................... 5 1.3.5 PuBlic Participation ...................................................................................................................................... 6 1.4 Agricultural Water Quality ............................................................................................................. 6 1.4.1 Point and Nonpoint Sources of Water Pollution............................................................................... 6 1.4.2 Beneficial Uses and Parameters of Concern ....................................................................................... 6 1.4.3 Impaired Water Bodies and Total Maximum Daily Loads ............................................................ 7 1.4.4 Oregon Water Pollution Control Law – ORS 468B.025 and ORS 468B.050 .......................... 7 1.4.5 Streamside Vegetation and Agricultural Water Quality ................................................................ 8 1.5 Other Water Quality Programs ..................................................................................................... 9 1.5.1 Confined Animal Feeding Operation Program ................................................................................ 10 1.5.2 Groundwater Management Areas......................................................................................................... 10 1.5.3 The Oregon Plan for Salmon and Watersheds ................................................................................. 10 1.5.4 Pesticide Management and Stewardship ........................................................................................... 10 1.5.5 Drinking Water Source Protection ....................................................................................................... 11 1.5.6 Oregon’s Coastal Management Program and the Coastal Zone Management Act Reauthorization Amendments of 1990 .............................................................................................................. 11 1.6 Partner Agencies and Organizations ........................................................................................ 12 1.6.1 Oregon Department of Environmental Quality ............................................................................... 12 1.6.2 Other Partners .............................................................................................................................................. 12 1.7 Measuring Progress ........................................................................................................................ 13 1.7.1 MeasuraBle OBjectives .............................................................................................................................. 13 1.7.2 Land Conditions and Water Quality..................................................................................................... 13 1.7.3 Focused Implementation in Small Geographic Areas ................................................................... 14 1.8 Monitoring, Evaluation, and Adaptive Management ........................................................... 15 1.8.1 Agricultural Water Quality Monitoring .............................................................................................. 15 1.8.2 Biennial Reviews and Adaptive Management ................................................................................. 15 Chapter 2: Local Background ...................................................................................................... 17 2.1 Local Roles and Responsibilities ................................................................................................ 17 2.1.1 Local Advisory Committee (LAC).......................................................................................................... 17 2.1.2 Local Management Agency ...................................................................................................................... 17 2.2 Area Plan and Regulations: Development and History ...................................................... 17 2.3 Geographical and Physical Setting ............................................................................................. 18 Inland Rogue Agricultural Water Quality Management Area Plan February 6, 2018 2.3.1 Geographic and Programmatic Scope ................................................................................................. 18 2.3.2 Map of the Management Area ................................................................................................................ 19 2.3.3 Location, Water Resources, Land Use, Land Ownership, Agriculture ................................... 19 2.3.4 CannaBis .......................................................................................................................................................... 22 2.4 Agricultural Water Quality in the Management Area ......................................................... 22 2.4.1 Local Issues of Concern ............................................................................................................................. 22 2.4.2 303(d) List of Impaired Water Bodies and Basin TMDLs ........................................................... 24 2.4.3 Groundwater Resources ........................................................................................................................... 26 2.4.4 Beneficial Uses .............................................................................................................................................. 29 2.5 Prevention and Control Measures ............................................................................................. 32 2.5.1 How the AgWQM Area Plan Addresses the Temperature Standard ...................................... 32 2.5.2 How the AgWQM Area Plan Addresses the Bacteria Standard ................................................ 34 2.5.3 Sedimentation ............................................................................................................................................... 34 2.5.4 Nutrients ......................................................................................................................................................... 34 2.5.5 Dissolved Oxygen ........................................................................................................................................ 34 2.5.6 pH ....................................................................................................................................................................... 35 2.5.7 Menu of Better Management Practices .............................................................................................. 35 2.5.8 CZARA .............................................................................................................................................................