Johannesburg Water SOC Ltd (JW) is a municipal entity, wholly owned by the City of Johannesburg and is mandated to provide water and sanitation services to approximately 4.4 million residents within the jurisdiction of Johannesburg. JW supplies 1 574 Ml/day of potable drinking water, procured from the bulk supplier, through a distribution network of 11 896 km, 122 reservoirs and water towers and 35 water pump stations. The spent wastewater is collected and reticulated via 11 786 km of wastewater network and 37 sewer pump stations. It treats 973 Ml/day of sewage which can fill a dam four times the size of Emmarentia Dam at six wastewater treatment works, which two of its biogas-to energy plants which convert methane gas to energy are located. Johannesburg Water has a very capable, sophisticated and world class system in place to carry out its mandate efficiently to its customers.