Kwandebele Renosterkop Marble Hall.Docx May 2011 I RECONCILIATION STRATEGY: KWANDEBELE/RENOSTERKOP REPORT NO
Total Page：16
File Type：pdf, Size：1020Kb
CONTRACT WP 9711 DEVELOPMENT OF A RECONCILIATION STRATEGY FOR ALL TOWNS IN THE NORTHERN REGION GREATER SEKHUKHUNE DISTRICT MUNICIPALITY AND GREATER MARBLE HALL LOCAL MUNICIPALITY: FIRST ORDER RECONCILIATION KWANDEBELE/RENOSTERKOP/MARBLE HALL (MOUTSE) WATER SUPPLY SCHEME Witfontein S/Holdings, Toitskraal, Driefontein, Uitvlugt, Keerom, Doornlaagte, Zamenkomst, Makeepsvley, Spitspunt, Leeuwkuil, and Kwamatabane DRAFT VERSION 1.3 May 2011 Prepared by Prepared for: SRK Consulting Department of Water Affairs PO Box 35290 Directorate: National Water Resources Planning MENLOPARK Private Bag X313 0102 PRETORIA, Tel: +27 (0) 12 361 9821 0001 E-mail: [email protected] RECONCILIATION STRATEGY: KWANDEBELE/RENOSTERKOP REPORT NO. {1} DEVELOPMENT OF A RECONCILIATION STRATEGY FOR ALL TOWNS IN THE NORTHERN REGION FIRST ORDER RECONCILIATION STRATEGY KWANDEBELE/RENOSTERKOP/MARBLEHALL WATER SUPPLY SCHEME EXECUTIVE SUMMARY The rudimentary strategy objectives and methodology are presented in a separate report titled “ Starter document: Methodology followed for the Development of Reconciliation Strategies for the All Town Study Northern Region ” and must be read in conjunction with this document. Location and Background Information The focus of this document includes the settlements of Witfontein S/Holdings, Toitskraal/Matlala B, Driefontein, Uitvlugt, Keerom, Doornlaagte, Zamenkomst, Makeepsvley/Rathoke, Spitspunt, Leeuwkuil, and Kwamatabane in the western part of the Greater Marble Hall Local Municipality. It was reported in the 2005/2006 IDP that the Kwandebele/Renosterkop/Marble Hall cluster receives its supply from different sources including the Elands River, boreholes and fountains/wells. Some of the settlements receive non constant 24 hour inadequate supply through water tankers. Ikangala Water is the Water Service Providers. Water supply to the Kwandebele/Renosterkop/Marble Hall Water Scheme area is completely insufficient. The challenges facing this Water Supply Area are listed below: • Infrastructure exists, but no purified water supply available. • In some of the settlements the source is sufficient only when it rains. • No reservoirs, steel tanks. • Water tankers – not constant 24 h supply. • Lack of maintenance of bulk infrastructure Water Resource Availability and Requirements The groundwater consumption was estimated by the groundwater specialists, WSM Leshika for the Kwandebele/Renosterkop/Marble Hall Cluster and this consumption is quoted in the GSDM Water Services Development Plan as 0.131 Million m 3/a for the year 2005. The current water requirement for the cluster was calculated as 1.705 Million m 3/a, using benchmark consumption values for the estimated base population of 2007. This current requirement is projected to increase to 2.512 million m 3/a by the year 2030 based on the high growth scenario. The surface water from Mkhombo (Renosterkop Dam) is estimated at 1.53 Million m 3/a. The confidence in this estimate is very low and the actual surface water supply for this cluster should be confirmed. Groundwater use is estimated at 0.075 Million m 3/a from X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Greater Marble Hall LM\Kwandebele Renosterkop_Marble Hall.docx May 2011 i RECONCILIATION STRATEGY: KWANDEBELE/RENOSTERKOP REPORT NO. {1} the available DWA Water Services borehole information. The available groundwater resource that could be used to expand the available supply is estimated using the DWA Water Services borehole information at 0.5 Million m 3/a. The groundwater availability and sustainability should be confirmed. Groundwater resources are not sufficient to augment the water supply up to 2030. Water balance with reconciliation options The cluster appears to be in deficit based on the current groundwater supply against the current and future water requirement. The current surface water supply is estimated at 1.53 Million m 3/a. The groundwater use is estimated at 0.075. The conjunctive use of both surface and groundwater is not sufficient to meet current and future demands. The groundwater potential of 0.5 Million m 3/a, is available for further development. The available groundwater resource was used to augment the current water supply. Water Conservation and Water Demand Management measures must be implemented in order to reduce the losses in the distribution system and to ensure the minimization of wasteful water. It is essential that all abstracted water must be metered and continually monitored in order for the implementation of management measures and the ensured effectiveness thereof. Augmentation options and/or implementation of WC/WDM requirements 3 2.5 Currentlevel of service 2 20% growth in Mm³/annum 1.5 house connection by 2025 5% growth in house connection by 1 2015 0.5 0 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 Year Augmentation Measures (Groundwater) Surface Water Supply Groundwater Supply Estimated Future Requirements (Low growth scenario) Estimated Future Requirements (High growth scenario) WC/WDM Measures (Low growth scenario) WC/WDM Measures (High growth scenario) Confidence level of Information available for the study area The confidence level for the information in this area is very low as there are no existing records of actual flows for water provided. Actual surface water supply should be confirmed. Groundwater supply also needs to be metered and monitored. X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Greater Marble Hall LM\Kwandebele Renosterkop_Marble Hall.docx May 2011 ii RECONCILIATION STRATEGY: KWANDEBELE/RENOSTERKOP REPORT NO. {1} Priority rating for the development of a detailed reconciliation strategy: This cluster is considered to have a Priority4 (high) rating for the development of a detailed reconciliation strategy as the cluster does not have sufficient water supply and cannot meet current and future water demands. Water allocations must be registered. Conclusions • The present water requirements for the Kwandebele/Renosterkop/Marble Hall cluster was calculated as 1.705 Million m 3/a, using the estimate base population of 2007. This requirement is projected to increase to 2.512 Million m 3/a by year 2030 based on the high growth scenario. • The surface water available from the Mkhombo Dam is estimated at 1.53 Million m 3/a. Groundwater use is estimated at 0.075 million m 3/a. • Groundwater (0.5 Mm 3/a) is available to augment the available water supplies. The available surface water (1.53 Million m 3/a) and the combined sustainable yield of the production boreholes is insufficient to meet the projected water requirements for the cluster for the year 2030. However, a detailed hydro geological assessment and borehole census for the region is required to confirm the groundwater availability. • Based on the consumption analysis, the Kwandebele/Renosterkop/Marble Hall Cluster scheme is considered to have a Priority 4 (high) rating for the development of a detailed reconciliation strategy as the cluster is insufficiently supplied. Strategy/Recommendations • Confirm the allocation from the Mkhombo Dam to the Kwandebele/Renosterkop/Marble Hall cluster to determine if indeed the combined water resources are inadequate. • Developing, implementing and monitoring of the Water Conservation and Water Demand Management strategy is urgently required. • Limit wasteful water use in order to control water consumption and utilise the available surface water and groundwater to its full potential. • Groundwater availability should be confirmed and a detailed hydro geological investigation and groundwater reserve determination be done followed by formalised development of well field with appropriate metering and monitoring for emergency supply, as required. X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Greater Marble Hall LM\Kwandebele Renosterkop_Marble Hall.docx May 2011 iii RECONCILIATION STRATEGY: KWANDEBELE/RENOSTERKOP REPORT NO. {1} Signature This is a strategy for the Kwandebele/Renosterkop/Marble Hall cluster and it has been accepted and signed by Greater Sekhukhune District Municipality, Greater Marble Hall Local Municipality, DWA Limpopo Regional Office and the DWA Head Office as follows: Town WMA DM WSA WSDP Status Kwandebele / Olifants Greater Ikangala Draft Renosterkop Sekhukhune District Municipality Names:………………………………………. Names:………………………………………. Signature:…………………………………… Signature:…………………………………… Date:………………………………………… Date:………………………………………… Position:…………………......... Greater Position:…………………………… Greater Marble Hall LM Sekhukhune DM Names:………………………………………. Names:………………………………………. Signature:…………………………………… Signature:…………………………………… Date:………………………………………… Date:………………………………………… Position:…………………………………DWA Position:………………………………DWA D: Regional Office National Water Resource Planning X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Greater Marble Hall LM\Kwandebele Renosterkop_Marble Hall.docx May 2011 iv RECONCILIATION STRATEGY: KWANDEBELE/RENOSTERKOP REPORT NO. {1} TABLE OF CONTENTS STRATEGY/RECOMMENDATIONS .................................................................................... III 1 INTRODUCTION ......................................................................................................... 1 1.1 Overview ..................................................................................................................