UITKOMST COLLIERY PTY LTD: INTEGRATED WATER & WASTE MANAGEMENT PLAN SUBMITTED IN SUPPORT OF A WATER USE LICENSE AMENDMENT: 07/V30B/AG/357 FILE NO.: 16/2/7/V301/C/29 DISCLAIMER This report has been prepared by Cabanga Concepts, trading as Cabanga Environmental, with all reasonable skill, care and diligence within the terms of the contract with the client, and taking into account of the resources devoted to it by agreement with the client. We disclaim any responsibility to the client and any other in respect of any matters outside the scope of the project. This report is confidential to the client and we accept no responsibility of whatsoever nature to third parties to whom this report, or any part thereof, is made known. Any such parties rely on the report at their own risk. DOCUMENT CONTROL Author: J. Barrett (BSc) Signature: Date: 21-04-2017 Approval: K.C.van Rooyen (MSc) Signature: Date: 25-04-2017 Pr.Sci.Nat UITKOMST COLLIERY: IWWMP TABLE OF CONTENTS 1. INTRODUCTION .................................................................................................................................... 1 1.1 ACTIVITY BACKGROUND........................................................................................................... 1 1.2 APPLICANT DETAILS .................................................................................................................... 1 1.3 REGIONAL & LOCAL SETTING ................................................................................................... 2 1.4 PROPERTY DESCRIPTION ........................................................................................................... 2 1.5 PURPOSE OF THE IWWMP .......................................................................................................... 3 2. CONCEPTUALISATION OF THE ACTIVITY .......................................................................................... 8 2.1 DESCRIPTION OF ACTIVITY ........................................................................................................ 8 2.2 EXTENT OF ACTIVITY ................................................................................................................... 8 2.3 KEY ACTIVITY RELATED PROCESSES & PRODUCTS................................................................. 8 2.4 ACTIVITY LIFE DESCRIPTION ...................................................................................................... 9 2.5 ACTIVITY INFRASTRUCTURE DESCRIPTION ............................................................................. 11 2.5.1 South Mine ................................................................................................................................ 11 2.5.2 Klipspruit Mine ........................................................................................................................... 14 2.6 KEY WATER USES & WASTE STREAMS ..................................................................................... 16 2.7 ORGANISATIONAL STRUCTURE ............................................................................................... 17 2.8 BUSINESS & CORPORATE POLICIES ........................................................................................ 17 3. REGULATORY WATER & WASTE MANAGEMENT FRAMEWORK .................................................. 18 3.1 SUMMARY OF ALL WATER USES .............................................................................................. 18 3.2 EXISTING LAWFUL WATER USES ............................................................................................... 24 3.3 RELEVANT EXEMPTIONS ........................................................................................................... 24 3.4 GENERAL AUTHORISATIONS ................................................................................................... 25 3.5 AMENDMENTS TO EXISTING USES ........................................................................................... 25 3.6 NEW WATER USES TO BE LICENSED ........................................................................................ 28 3.7 WASTE MANAGEMENT ACTIVITIES (NEM:WA) & AUTHORISATIONS ................................. 29 3.8 OTHER AUTHORISATIONS & REGULATIONS........................................................................... 30 4. PRESENT ENVIRONMENTAL SITUATION ........................................................................................... 31 4.1 CLIMATE ..................................................................................................................................... 31 4.1.1 Regional Climate ..................................................................................................................... 31 4.1.2 Rainfall ....................................................................................................................................... 31 4.1.3 Evaporation .............................................................................................................................. 31 4.2 SURFACE WATER (Letsolo, 2016) ............................................................................................ 32 4.2.1 Water Management Area (WMA 7) .................................................................................... 32 4.2.2 Mean Annual Runoff (MAR) .................................................................................................. 32 4.2.3 Flood peaks & volumes .......................................................................................................... 33 4.2.4 Surface Water Quality ............................................................................................................ 35 i | P a g e UITKOMST COLLIERY: IWWMP 4.2.5 Resource Class & River Health .............................................................................................. 39 4.2.6 Receiving Water Quality Objectives & Reserve ................................................................ 47 4.2.7 Surface water User Survey ..................................................................................................... 48 4.3 SENSITIVE AREAS SURVEY ........................................................................................................ 49 4.4 GROUNDWATER (Future Flow, 2017) .................................................................................... 58 4.4.1 Aquifer Characterisation ........................................................................................................ 58 Upper weathered material aquifer: .............................................................................................. 58 Lower fractured rock aquifer: ........................................................................................................ 59 4.4.2 Hydrocensus ............................................................................................................................. 59 4.4.3 Potential Pollution Source Identification ............................................................................. 64 4.4.4 Groundwater Model Results: Operational .......................................................................... 64 Groundwater contamination: ........................................................................................................ 66 4.4.5 Groundwater Model Results: Long Term Post Operations ............................................... 71 Recovery of groundwater levels and decant potential: .......................................................... 71 Contaminant migration: .................................................................................................................. 71 4.5 SOCIO-ECONOMIC ENVIRONMENT ..................................................................................... 75 5. ANALYSIS & CHARACTERISATION OF WATER USE ACTIVITY ....................................................... 77 5.1 SITE DELINEATION FOR CHARACTERIZATION ....................................................................... 77 5.2 WATER &WASTE MANAGEMENT ............................................................................................ 77 5.2.1 Process Water ........................................................................................................................... 79 5.2.2 Storm Water .............................................................................................................................. 82 5.2.3 Groundwater ............................................................................................................................ 83 5.2.4 Potable & Domestic Water Supply ....................................................................................... 83 5.2.5 Water Balance ......................................................................................................................... 84 5.2.6 Waste ......................................................................................................................................... 86 5.3 OPERATIONAL MANAGEMENT ............................................................................................... 87 5.4 ORGANISATIONAL STRUCTURE ............................................................................................... 87 5.5 RESOURCES & COMPETENCE ................................................................................................. 88 5.6 EDUCATION & TRAINING ........................................................................................................ 88 5.6.1 Training Needs .........................................................................................................................