Two of the City of Cape Town’s wastewater treatment works (WWTW) received an internationally recognised quality management standard, bringing the City’s total number of ISO-certified facilities to three.
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The Wesfleur and Melkbosstrand Wastewater Treatment Works received their ISO 9001 accolade on Thursday, 23 May. The standard is used to ensure that organisations meet customer needs within statutory and regulatory requirements.
The quality management system has been in use at the City’s WWTW for the past few years in order to produce the best quality treated effluent/end product and customer service, the City said in a statement.
The Bellville WWTW received their certification in July 2018.
The main benefits of the ISO 9001 certification for a wastewater treatment plant is:
- Customer confidence
- Effective complaint resolution
- Overall process improvement
- Ongoing optimisation
The system holistically improves the overall wastewater treatment process and provides effective sanitation for residents.
‘It is a proud moment for the Water and Sanitation team who worked tirelessly towards the successful ISO 9001 certification,’ says Mayco member for water and sanitation, Zahid Badroodien.
‘This gives us all extra reassurance that Cape Town’s WWTWs operate with utmost efficiency and ensuring top quality standards at every step of the process.’
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The Melkbosstrand WWTW services sewage from Melkbosstrand, Duynefontein and partly the Big Bay communities.
It is currently permitted to discharge effluent that complies with the Department of Water and Sanitation (DWS) Standards Regulation 991 – the majority of which is used for irrigation at the Atlantic Beach Golf Course. The rest is discharged into the Kleine Zoute River.
The Wesfleur WWTW is located outside of Atlantis in the Industrial area. This site comprises two separate activated sludge plants.
Firstly, the industrial plant treats all effluent from Atlantis. It was commissioned in 1978.
The domestic plant treats domestic effluent and was commissioned in 1986. The treated effluent from this plant is used to recharge the Atlantis Aquifer, which is used to supply drinking water to Atlantis and the surrounding areas.

The City plans to obtain more certifications for its remaining plants. The first one to focus on is the Kraaifontein WWTW. However, it would depend on the respective WWTW’s performance on their National Department of Water and Sanitation (DWS) Licence/Permit conditions.
Furthermore, the Wesfleur and Melkbosstrand WWTW are earmarked to undergo ISO 50001 certification, which would recognise the facilities for their efforts in energy efficiency.
The City has plans in place for both plants to undergo the necessary enhancements and upgrades to meet the required criteria to be awarded this certification.
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Picture: City of Cape Town