East Rand Water Care Company

A truly indigenous South African wastewater company providing bulk wastewater conveyance and a highly technical and proficient wastewater treatment service to some 2 000 industries and more than 3,5 million people.

Provision and maintenance of process control systems

Advanced chemical and bacteriological laboratory services

Research and development in water-related areas

Industry-specific training in both the scientific and operating fields

Physical Address: Waterval Farm, Meadow Road, Klip River

The Waterval wastewater care works is the biggest works operated by ERWAT and is situated in the DD6 area at the Klip River.

The first 25 Mℓ/d Module at Waterval WCW was commissioned in 1979 and subsequently modified to treat 30 Mℓ/d. Upgrades in 1989 and 1993 each added further 35 Mℓ/d capacity modules.  An upgrade during 2000/2001 included for a new inlet works comprising screens, vortex degritters, stormflow and sub-standard effluent containment measures.

The plant was originally built to serve parts of Germiston, Alberton, Kathlehong, Vosloorus and Boksburg. Due to continued and rapid growth in the southern area of Ekurhuleni, it became crucial to make provision for additional capacity at this regional wastewater treatment works.

Further extensions involved the building of a fourth activated sludge module at a cost of R170 million. The module was commissioned in 2008. The existing plant consists of a modern preliminary treatment facility, four parallel liquid biological treatment modules and tertiary disinfection before the final effluent is discharged into the Klip River.

The total design capacity of the Waterval wastewater care works is now 155 Mℓ/d.

Capacity : 155.00 Mℓ/d

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ERWAT will be participating in the biennial WISA conference and exhibition from 24 to 27 June 2018 at the CTICC in Cape Town. Besides some of ERWAT’s employees presenting interesting papers, the company will also showcase its products and services at stand number D10-11.

ERWAT will also be taking part in panel discussions and sharing insights into the challenges and opportunities facing the water sector in South Africa and beyond our borders.


ERWAT AT AUW 15-17 MAY 2018

ERWAT will once again be exhibiting at the African Utility Week (AUW) from 15 to 17 May 2018 at the ICC in Cape Town. Visit us at stand number M13c to learn more about what ERWAT can offer.

ERWAT welcomes new Managing Director

Mr Tumelo Gopane recently joined ERWAT as Managing Director.

“I am honored to have been appointed as ERWAT’s Managing Director. It is a privilege to be part of an organization that delivers high quality services and innovative solutions to its clients and that continuously pursues excellence in the water sector”, says Gopane.

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Important information for suppliers and vendors


National Treasury has introduced the CSD (Central Supplier Database). In line with National Treasury directives ERWAT is no longer accepting vendor applications as from 1 July 2016. All vendors must now register on the National Treasury Central Supplier Database. For more information please visit our "Procurement" page.


Welgedacht WWTW extended with 50 megalitres per day


Excitement filled the air on Monday, 9 May 2016 when the Executive Manager: Operations, Mr Fortune Mabunda, switched on the pumps to start pumping the first wastewater through the new 50 megalitre per day (Mℓ/day) extension at ERWAT’s Welgedacht Wastewater Treatment Works (WWTW).

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Telephone: +27 11 929 7000

Facsimile: +27 11 929 7031


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Laboratory email:

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