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: cnr Brickfield / Bierman Streets, Vosloorus

Vlakplaats is situated in Vosloorus and falls within the DD6 drainage district. The original plant was built in 1972, but soon after that the need for extension was identified. Three more modules followed in 1974, 1983 and 1991 respectively. The has a designed capacity of 83 megaliters per day. The works presently treats effluent from Boksburg and Vosloorus as well as areas of Tsakane, Duduza and Brakpan. The first three modules are conventional biological filters while the fourth module is an activated sludge reactor designed for biological nutrient removal.

The flow is divided to each of the four modules. Each of the biological filtration processes includes manually operated screens and facilities for grit removal. It also includes primary sedimentation, biological filtration and humus clarification. The effluent from each of the three modules is dosed with ferric chloride for chemical phosphorous removal before it is discharged into a system of maturation ponds.

The activated sludge module consists of mechanical screens and grit removal equipment. It also includes primary sedimentation, in-line flow balancing, a three-stage Bardenpho activated sludge reactor and secondary clarification. The effluent from all four modules flows through the maturation ponds into the Natalspruit and finally into the Klip River. All the sludge, including the thickened activated sludge, is stabilised in mixed, heated digesters from where it is applied on drying beds or on land. Local farmers cultivate instant lawn, utilizing some of the dried sludge.

Capacity : 83.00 Mℓ/d

Ethics Hotline

Report corruption and fraud
at 0800 204 860

Current and prospective service providers registration

For more information regarding  registering on the Central Suppliers Database
Click here ]


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.

Read more ...

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.


War On Leaks Program by DWS

A “War on Leaks” program was recently launched by the Department of Water and Sanitation (DWS), in collaboration with Rand Water.

Read more ...

Four ERWAT plants received recognition at WISA 2014

Four of ERWAT’s larger wastewater treatment works (WWTW) were recognised for their achievements at a recent conference hosted by the Water Institute of Southern Africa (WISA). These WWTW’s are Waterval, Olifantsfontein, Dekema and Rondebult.

Read more ...

ERWAT and Stellenbosch University join forces in research

A new research chair, sponsored by the East Rand Water Care Company (ERWAT), will focus on new innovations in water research, as well as upping the skills of researchers, engineers and technical personnel in water treatment and management.

Read more ...


Telephone: +27 11 929 7000

Facsimile: +27 11 929 7031


General email:

Laboratory email:

© ERWAT, 2018 - all rights reserved

Privacy Policy :: Terms

Developed by Newsbeat Developments