Table of Contents Table of Contents .......................................................................................................................................... ii Table of Figures ............................................................................................................................................ vi Table of Tables ............................................................................................................................................ xii Executive Summary ..................................................................................................................................... 13 Beneficial Use Monitoring Program Goal ............................................................................................... 13 Beneficial Use Monitoring Program Components .................................................................................. 14 Program History/Overview ..................................................................................................................... 16 Results of Groundwater Sampling Efforts ............................................................................................... 17 Introduction ................................................................................................................................................ 20 Background & Problem Definition .......................................................................................................... 21 Beneficial Use and Monitoring Program Overview ................................................................................ 21 Groundwater Monitoring & Assessment Program ..................................................................................... 22 Program Structure .................................................................................................................................. 22 Methods and Materials ........................................................................................................................... 23 Sample Strategy and Site Selection..................................................................................................... 23 Sample Collection ............................................................................................................................... 23 Groundwater Constituents ................................................................................................................. 24 Data Protocols ..................................................................................................................................... 26 Review of Groundwater Data ................................................................................................................. 26 Ada-Vamoosa Aquifer ................................................................................................................................. 30 Data Collection Results- Group B ............................................................................................................ 30 Groundwater Level Measurements ........................................................................................................ 31 Antlers Aquifer ............................................................................................................................................ 33 Data Collection Results- Group C ............................................................................................................ 33 Groundwater Level Measurements ........................................................................................................ 34 Arbuckle-Simpson Aquifer .......................................................................................................................... 36 Data Collection Results- Group C ............................................................................................................ 36 Groundwater Level Measurements ........................................................................................................ 37 Arbuckle-Timbered Hills Aquifer ................................................................................................................. 39 Data Collection Results- Group C ............................................................................................................ 39 Groundwater Level Measurements ........................................................................................................ 40 Page ii Arkansas River Alluvial & Terrace Aquifer .................................................................................................. 41 Data Collection Results- Group B ............................................................................................................ 41 Groundwater Level Measurements ........................................................................................................ 42 Blaine Aquifer .............................................................................................................................................. 44 Data Collection Results- Group C ............................................................................................................ 44 Groundwater Level Measurements ........................................................................................................ 45 Boone Aquifer ............................................................................................................................................. 47 Data Collection Results ........................................................................................................................... 48 Water Quality ...................................................................................................................................... 48 Groundwater Level Measurements ........................................................................................................ 50 Canadian River Alluvial & Terrace Aquifer .................................................................................................. 52 Data Collection Results- Group A ............................................................................................................ 52 Groundwater Level Measurements ........................................................................................................ 53 Cimarron River Alluvial & Terrace Aquifer .................................................................................................. 55 Data Collection Results- Group D ............................................................................................................ 55 Groundwater Level Measurements ........................................................................................................ 56 Dakota-Dockum Aquifer ............................................................................................................................. 58 Data Collection Results- Group D ............................................................................................................ 58 Groundwater Level Measurements ........................................................................................................ 59 Elk City Aquifer ............................................................................................................................................ 61 Data Collection Results- Group A ............................................................................................................ 61 Groundwater Level Measurements ........................................................................................................ 62 Enid Isolated Terrace Aquifer ..................................................................................................................... 65 Data Collection Results- Group B ............................................................................................................ 65 Groundwater Level Measurements ........................................................................................................ 66 Garber-Wellington Aquifer ......................................................................................................................... 68 Data Collection Results- Group A ............................................................................................................ 68 Groundwater Level Measurements ........................................................................................................ 69 Gerty Sand ................................................................................................................................................... 72 Data Collection Results- Group A ............................................................................................................ 72 Groundwater Level Measurements ........................................................................................................ 73 North Canadian River Alluvial & Terrace Aquifer ....................................................................................... 74 Page iii Data Collection Results- Group C ............................................................................................................ 74 Groundwater Level Measurements ........................................................................................................ 75 North Fork of the Red River Alluvial & Terrace Aquifer .............................................................................