RAND WATER ANNUAL REPORT 2023

HOW WE CREATE VALUE

Risks

Required compliances to SANS 241: 2015 standard

Overall Compliances - SANS 241: 2015 standard

Acute health microbiological

99.0%

99.91%

Acute health chemical

99.0%

100%

Chronic health

97.0%

99.99%

Aesthetic

95.0%

99.93%

Operational

95.0%

97.96%

Indicator

Required compliance to Internal Standard

Overall Compliance - Internal standard

Composite Performance Indicator

98.33%

99.35%

Notes (1) Specification_SANS 241 date of effect : 1 July 2016 (2) Measured at water treatment works exit points (3) (NO2/0.9 + NO3/11) (4) Residual disinfectant : Results from the chloraminated system = Sum of Free and Monochloramine (5) (CHCl3/300 + CHBr3/100 + CHBr2Cl/100 + CHBrCl2/60)

(6) Customer request: Results not included in the risk indices compliance calculations and limits based on SANS 241:2006 (7) Customer request: Results not included in the risk indices compliance calculations and limits based on RW Internal Spec Rand Water Laboratories The main water testing facility referred to as Rand Water Analytical Services (RWAS) is based in Vereeniging. It is responsible and accountable for water quality data associated with statutory compliance as well as the variables linked to the identified water quality risks components. RWAS has four (4) testing laboratories (Inorganic, Organic, Microbiology and Hydrobiology) that are fully accredited (as per ISO 17025). Each laboratory develops test methods that are tailored to meet the requirements of SANS 241. Moreover, RWAS is also responsible to give technical advice on science-related matters within the Rand Water business. In the period under review, RWAS assisted the Rand Water Sanitation Department on water quality testing for the EML s63 project, where a total of 4 109 samples were analysed and the results thereof reported. RWAS was also involved in assisting Rand Water to implement the Rand Water and AfWA MoU. This MoU assists the African Water and Sanitation Association - AfWASA (name changed from “AfWA” to “AfWASA” to include sanitation) through the AfWSA capacity (AfriCap) programme, funded by the United States Agency for International Development (USAID), to train some African countries on Water Quality Management. For this reporting period, Ethiopian and Malawian delegates were trained through the water quality audit mission as well as the benchmarking mission that took place in October and November 2022, respectively. As part of expanding on the commercialisation of laboratory services, the facility hosted and trained Botswana Water Utility Corporation staff members on test methods in microbiology (i.e., Cryptosporidium and Giardia ) and Organic Chemistry (Geosmin/MIB, Taste and Odour) during December 2022. In the Rand Water area of supply that covers a distribution network of 1 500km, the laboratory collected and analysed 105 311 samples, which is a decrease of 5% from the preceding period. This decrease in sample analysis is mostly due to delays in the supply of consumables for the analytical methods. From the 105 311 samples received, 727 308 water quality results were generated within the 95% customer set turnaround times. The number of customer complaints logged increased from 22 to 39 for this reporting period. The increase in consumer complaints is also attributed to the delayed delivery of consumables. The challenge of delayed consumables was effectively resolved with the implementation of long-term tenders. The raised complaints were effectively investigated, reported and the recommendations from the technical teams were implemented.

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