RAND WATER ANNUAL REPORT 2023

HOW WE CREATE VALUE

WATER CONSERVATION AND DEMAND MANAGEMENT Rand Water’s strategy for Water Conservation and Demand Management (WC/WDM) was approved in 2017 and is in accordance with the National Strategy, which defined the strategic role of Rand Water in WC/WDM. The strategic role requires Rand Water to undertake the following: • To participate in the development of catchment strategies. • To manage the water losses in Rand Water’s network. • To coordinate the implementation of regional WC/WDM measures. • Where necessary assist customers to manage their water demand more effectively. The work undertaken by Rand Water is in terms of the three (3) pillars defined in the WC/WDM strategy and involves: • Monitoring the availability and sustainability of water resources or catchment quantity monitoring. • Monitoring of internal water losses to guide measures to address it effectively. • Obtain an understanding of customer demand to improve water use efficiency and ultimately reduce the water requirement of the municipal sector. Catchment Quantity Monitoring The main objective is to monitor the raw water resource availability to mitigate the risk of security of supply. Rand Water abstracts all its water from the Integrated Vaal River System (IVRS). The IVRS consist of Upper, Middle and Lower Vaal Water Management Areas, which includes transfer schemes from other water management areas such as Thukela, Usutu and Nkomati. The IVRS consists of 14 main storage dams, the levels of which are monitored and updated by DWS on a weekly basis. As at the end of June 2023, the net storage levels in the IVRS i.e., excluding the dead storage) was 97.8%, which is slightly lower than last year at 100.6%.

two (2) pipes. This resulted in the use of wrapper plates which increased the pressure on the completion time due to increased time spent on welding. The shutdown was successfully completed, yielding a good quality product.

B06 Shutdown

Station 5A To meet the ever-increasing demand for potable water, Rand Water started, in 2010, with the planning and development of an additional augmentation scheme at Zuikerbosch, which would be known as Station 5, with a nominal treatment capacity of 600 Mℓ/d. The objective of this new station is to increase both its water treatment and pumping capabilities, which will augment the overall Rand Water’s capacity. The completed first phase of the newly built plant will add 150 Mega litres of water per day to municipalities in Gauteng. Phase 2 will add an extra 450 Mℓ/d once it is completed in 2024.

Station 5A

111