Johannesburg Water has confirmed recent water quality tests have shown no detection ofE coliafter reports of foul-smelling tap water in parts of the Johannesburg CBD and Bez Valley late last month. The utility said the latest results indicate there is no evidence of faecal contamination in the affected section of the water network. “As part of the investigation and interventions, the most recent water quality test results show no detection ofE coliat any sampling points, confirming there is no evidence of faecal contamination in the affected section of the network,” said Joburg Water.
“From a public health perspective, the system is therefore considered clear of faecal pollution.” The utility noted tests revealed elevated total coliform levels, which it said are commonly found in soil and do not necessarily pose a health risk. “Tests do show elevated total coliform levels commonly found in soil. The presence of these organisms is not unusual under such conditions and can be effectively managed through optimal chlorination,” it said.
With the improvement trajectory in the water quality by the observed quality levels, it can be expected normal supply could be restored within the next few days To address the issue, Johannesburg Water said it is increasing chlorine dosing where necessary and continuing to monitor and conduct repeat sampling to ensure compliance with national standards. “Johannesburg Water is boosting chlorine dosing where required, while monitoring and repeat sampling continue to track improvements and ensure water quality is achieved within the required SANS standards,” the utility said. With improvements observed, Johannesburg Water said normal water supply could be restored soon, though some areas remain isolated.
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“With the improvement trajectory in the water quality by the observed quality levels, it can be expected normal supply could be restored within the next few days,” it said. “At the moment the initially impacted area remains isolated and inaccessible to the consumer until Johannesburg Water deems the systems fully safe for consumption.” The update follows complaints from residents who reported a strong odour in tap water on December 29.
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