Physical Address: cnr N12 / Kingsway Road

The JP Marais works is situated in Benoni and falls within the DD5 drainage district. Built in 1991, the plant is designed to treat 15 megalitres per day of industrial effluent and raw sewage from the Benoni, Boksburg, Daveyton and Modderbee areas. Conventional activated sludge is employed as the main sewage purification process.

A central inlet works, incorporating the process of screening and grit removal serves the works. The BNR activated sludge process includes primary sedimentation, a three stage Badenpho reactor basin and final clarification. The final effluent is chlorinated and discharged into a tributary of the Blesbokspruit. A portion of the final effluent is utilised by the Modderbee Correctional Services facility for irrigation purposes.

Capacity : 15.00 Mℓ/d