REVISED 2019 MINING/ LAND RECLAMATION PLAN AND PLAN OF OPERATIONS FORT CADY PROJECT NEWBERRY SPRINGS, CALIFORNIA San Bernardino County No. 94M-04 Bureau of Land Management Nos. CACA33044; CAMC 20175 CA MINE ID # 91-36-0124 Prepared for: San Bernardino County Land Use Services Department 385 N. Arrowhead Avenue, 1st Floor San Bernardino, CA 92415 and Bureau of Land Management Barstow Field Office 2601 Barstow Road Barstow, CA 92311 Prepared by: FORT CADY CALIFORNIA CORPORATION 16195 Siskiyou, Suite 210 Apple Valley, CA 92307 MAY 1993 REVISED APRIL 2019 Approved by County of San Bernardino - July 10, 1994 Approved by BLM Barstow – December 30, 1994 Revised 2019 Plans Fort Cady Project Table of Contents List of Tables ............................................................................................................................................ 4 List of Figures ........................................................................................................................................... 5 Appendices ................................................................................................................................................ 5 Glossary of Terms ..................................................................................................................................... 6 I. Revised 2019 Mining Plan & Plan of Operations ................................................................................. 8 A. Request for Revisions - 2019 ................................................................................................................ 8 B. BLM Requirements ............................................................................................................................. 11 C. Summary of EIS/EIR Findings and Revised Plan............................................................................... 11 1.0 Mining Operations ................................................................................................................................ 16 1.1 Background ....................................................................................................................................... 16 1.1.1 Summary of 1993 Plan ............................................................................................................... 16 1.1.2 Current Description of the Project ............................................................................................ 19 1.1.3 Summary of Technology ............................................................................................................. 21 1.1.4 Ore Reserves .............................................................................................................................. 22 1.1.5 Land Holdings Status ................................................................................................................. 23 1.2 Project Development ......................................................................................................................... 25 1.2.1 Mine Site Approval and Reclamation Plan ................................................................................ 25 1.2.2 Waste Discharge Permit ............................................................................................................ 25 1.2.3 Air Quality Permit ...................................................................................................................... 25 1.2.4 Hazardous Waste and Toxic Control ......................................................................................... 25 1.2.5 Office of Building and Safety – Building Permit ........................................................................ 26 1.2.6 Groundwater Quality ................................................................................................................. 26 1.2.7 Hydrogeology ............................................................................................................................. 26 1.3 Commercial Plant Operations ........................................................................................................... 27 1.3.1 Applied Technology.................................................................................................................... 27 1.3.2 In-Site Mining ............................................................................................................................ 28 2.0 Ore Processing Method ......................................................................................................................... 33 2.1 Introduction ....................................................................................................................................... 33 2.2 Well Field Facilities .......................................................................................................................... 35 2.2.1 Well Field Layout ....................................................................................................................... 35 2.2.2 Mining Sequence ........................................................................................................................ 35 2 of 86 Revised 2019 Plans Fort Cady Project 2.2.3 Well Field Construction ............................................................................................................. 37 2.2.4 Well Completion Details ............................................................................................................ 38 2.2.5 Well Monitoring ......................................................................................................................... 41 2.2.6 Well Field Corrective Actions .................................................................................................... 42 2.2.7 Plugging and Abandonment Plan .............................................................................................. 43 2.3 Boric Acid Processing Plant ............................................................................................................. 43 3.4 Solvent Extraction ............................................................................................................................. 45 3.4.1 Solvent Extraction and Crystallization ...................................................................................... 45 2.4.2 Gypsum Production and Acid Regeneration .............................................................................. 46 2.5 Sulfate of Potash ............................................................................................................................... 47 2.6 Processing Facilities .......................................................................................................................... 47 2.7 Product Loading and Shipping .......................................................................................................... 48 2.8 Cogeneration and Ancillary Facilities ............................................................................................... 50 2.9 Process and Storage Tanks ................................................................................................................ 50 2.10 Railroad Spur, Natural Gas Pipeline and Access Roads ................................................................. 51 3.0 Mine Waste ........................................................................................................................................... 52 3.1 Recovery Process .............................................................................................................................. 52 3.2 In-process Solutions .......................................................................................................................... 52 3.3 Gypsum Storage Facility ................................................................................................................... 52 3.4 Other Wastes ..................................................................................................................................... 54 4.0 Water Supply ........................................................................................................................................ 55 5.0 Erosion and Sediment Control .............................................................................................................. 58 II. Land Reclamation Plan - 2019 ............................................................................................................... 59 1.0 Introduction ........................................................................................................................................... 59 1.1 Land Use ........................................................................................................................................... 59 1.2 Visibility ........................................................................................................................................... 60 1.3 Vegetation ......................................................................................................................................... 60 1.4 Wildlife ............................................................................................................................................. 61 2.0 Reclamation .......................................................................................................................................... 61 2.1 Pre-Construction Surveys ................................................................................................................