Windhoek’s Goreangab Water Reclamation Plant. The nation’s capital city, Windhoek, has been practicing direct potable reuse since 1968. The Windhoek Water Reclamation Plant serves a pop- ulation of 220,000. Domestic wastewater from the city is first treated in a conventional biological wastewater treatment plant; the treated wastewater then flows through a series of maturation ponds to a water reclamation plant. The reclamation plant has undergone many re-configurations and upgrades since 1968, most recently with the construction of the new Goreangab Water Recla- mation Plant (WRP) in 2002. Industrial effluents in the city are diverted to a separate sewer and treatment system.