Contract Wp 9711 Development of a Reconciliation Strategy for All Towns in the Northern Region
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CONTRACT WP 9711 DEVELOPMENT OF A RECONCILIATION STRATEGY FOR ALL TOWNS IN THE NORTHERN REGION SEKHUKHUNE DISTRICT MUNICIPALITY AND ELIAS MOTSOALEDI LOCAL MUNICIPALITY FIRST ORDER RECONCILIATION STRATEGY FOR ROOSSENEKAL WATER SUPPLY SCHEME Roossenekal DRAFT VERSION 1.2 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 FOR ROOSSENEKAL REPORT NO. { 1 } DEVELOPMENT OF A RECONCILIATION STRATEGY FOR ALL TOWNS IN THE NORTHERN REGION FIRST ORDER RECONCILIATION STRATEGY FOR THE ROOSSENEKAL 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 Roossenekal Cluster. The focus of this document is on the settlement of Roossenekal, a small situated on the east of the Greater Tubatse Local Municipality. Water is abstracted from the Tonteldoos River to supply the Roossenekal cluster. Water Resource Availability and Requirements The water consumption in Roossenekal is quoted in the Elias Motsoaledi Water and Sanitation Sectoral plan as 0.194 Million m 3/a. This figure was used as the bench mark water demand in calculating the current water requirement of 0.195 Million m 3/a for 2007 with the projected water requirement for 2030 at 0.214 Million m 3/a. The cluster has a WTP with a design capacity of 0.219 Million m 3/a. The source of water in this cluster is from Tonteldoos River and if the WTP is used to its full capacity, Roossenekal should be sufficiently supplied. Water balance with reconciliation options Roossenekal has sufficient water supply from both surface and groundwater sources. Surface water from the Tonteldoos River via the Roossenekal WTW with capacity 0.219 Million m 3/a is sufficient to meet the current and future demands. A groundwater use of 0.3 Million m 3/a was estimated. This groundwater use was not indicated on the Water Balance curve below since the estimate is quite unreliable due to the fact that the actual status of the five boreholes that are supposedly used is unknown. Domestic water supply will be sufficiently supplied by the Tonteldoos River. X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Elias Motsoaledi LM\Roossenekal.docx May 2011 i RECONCILIATION STRATEGY FOR ROOSSENEKAL REPORT NO. { 1 } Augmentation options and/or implementation of WC/WDM measures 0.25 0.2 Currentlevel 0.15 of service Mm³/annum 5% growth in 20% growth in house house connection connection by by 2025 0.1 2015 0.05 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 Surface Water 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 medium as most of the ground and surface water supply is metered and where metered, no accurate records are kept. The level of confidence in the population estimates is regarded as medium. The population data gives underestimated water requirements. The confidence in the information can be improved through the validation of the current population and water users from the source of supply. Priority rating for the development of a detailed reconciliation strategy: This cluster is considered to have a Priority 1(low). The Water Treatment plant has sufficient capacity to supply the current and future demands. X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Elias Motsoaledi LM\Roossenekal.docx May 2011 ii RECONCILIATION STRATEGY FOR ROOSSENEKAL REPORT NO. { 1 } CONCLUSIONS • Roossenekal town’s current water demand is quoted in the EMLM Water and Sanitation Sectoral Plan report as 0.194 Million m3/a. This demand is projected to increase to about 0.214 Million m3/a by the year 2030. The demand based on the Eskom population is estimated as 0.072 Million m3/a and projected to increase to 0.095 Million m3/a by the year 2030 as given in the table above. This calculated demand is highly underestimated when considering the recorded 0.194 Mm 3/a historical water use. • The water consumption records indicate that Roossenekal town is currently sufficiently supplied. Further augmentation is not required since the Water Treatment Plant has sufficient capacity (0.219 Million m 3/a) to supply the current and future demands. • Groundwater use is estimated at 0.3 Million m 3/a. • The groundwater resources in the scheme are potentially stressed, with the estimated current abstractions exceeding the UGEP dry; however this conclusion is based on low confidence level data. • The level of data presented is of low confidence since there is no metering of groundwater use and there is no registered use in WARMS. STRATEGY/RECOMMENDATIONS • Utilizing the Water Treatment Plant to its full capacity to meet the near future demand. • Develop, implement and monitor the Water Conservation and Demand Management plan, with clear performance targets. • Limit wasteful water use in order to control water consumption and utilise available the available resource to its full potential. • Detailed hydro geological investigation into the sustainability of supply at the current volumes followed by an application for registration of the water use. • Water quality monitoring of surface water to qualify fitness for use. • Register all the groundwater usage in the scheme X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Elias Motsoaledi LM\Roossenekal.docx May 2011 iii RECONCILIATION STRATEGY FOR ROOSSENEKAL REPORT NO. { 1 } SIGNATURE This is a strategy for the Roossenekal Town and it has been accepted and signed by Sekhukhune District Municipality, Elias Motsoaledi Local Municipality, DWA Limpopo Regional Office and the DWA Head Office (D: NWRP) as follows: Town WMA DM WSA WSDP Status Roossenekal Limpopo Sekhukhune GSDM Draft District Municipality Names:………………………………………. Names:………………………………………. Signature:…………………………………… Signature:…………………………………… Date:………………………………………… Date:………………………………………… Position:…………………......... Elias Position:…………………………… [Title and Motsoaledi LM name] Sekhukhune DM Names:………………………………………. Names:………………………………………. Signature:…………………………………… Signature:…………………………………… Date:………………………………………… Date:………………………………………… Position:…………………………………DWA Position:………………………………DWA D: Regional Office National Water Resource Plann ing X:\G\Proj 1\Proj\390778_DWAF North\7REPORTS\Strategies\All Strategies_19Dec2011\Limpopo\Greater Sekhukhune DM \Elias Motsoaledi LM\Roossenekal.docx May 2011 iv RECONCILIATION STRATEGY FOR ROOSSENEKAL REPORT NO. { 1 } TABLE OF CONTENTS 1 INTRODUCTION ......................................................................................................... 1 1.1 Study area ................................................................................................................. 1 1.2 Regional Setting ....................................................................................................... 1 1.3 Economic Drivers ..................................................................................................... 2 1.4 Confidence Level of Information Available for the Study Area ............................. 4 2 POPULATION AND DEMOGRAPHICS ...................................................................... 4 3 CURRENT WATER REQUIREMENTS ....................................................................... 4 3.1 Present Water Requirements and historical water use ......................................... 4 3.2 Level of services ...................................................................................................... 4 4 WATER REQUIREMENTS PROJECTIONS TILL 2030 .............................................. 5 4.1 Future water requirements ...................................................................................... 5 5 WATER RESOURCES ............................................................................................... 6 5.1 Surface water resources .......................................................................................... 6 5.1.1 Water allocation/s .............................................................................................. 6 5.1.2 Other water users from the same source ......................................................... 6 5.1.3 Quality ................................................................................................................. 7 5.2 Groundwater ............................................................................................................. 7 5.2.1 Other Water Users from the Same Source ....................................................... 7 5.2.2 Water allocation/s .............................................................................................. 7 5.2.3 Quality ................................................................................................................. 7