Lukunga River constant deposits of sediment. The river drains the Ngaliema commune, Mama Mobutu city and part of Mont-Ngafula, and forms the boundary between Ngaliema and Mont-Ngafule. On its right bank the Lukunga is fed first by the Ikusu River, which has its source at a height of and then by the Mbinza River, which rises at a height of . Before independence, one of the two water treatment plants for Leopoldville, now Kinshasa, was on the Likunga river at Kinsuka in the Ngaliema district. The station had been designed to last for 30 years with normal maintenance, but was in very
Oriental City with only one remaining original tenant in the facility, the Japanese tableware store, Utsuwa-No-Yataka. The centre also previously housed a shop selling video games and toys imported from Japan, a Sanrio boutique, and one of the largest Japanese bookshops in Europe, called . These have been closed down since 2003. In the period shortly before the centre closed down, shoppers could find a tailor's shop, a jeweller, a hairdresser, a beauty shop, Chinese medicine shops, a martial arts store, and a large furniture store. Oriental City was also host to a Sega Dome (Later Sega Park) arcade which has been