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
Safwa City The city has a history of 6500 years and was also known as Darius, after Darius III. The city was named after Darius III, the king of Persia because he liked the city. Therefore, Safwa had been called Darius until the year 1945 "The Identity Year". In 1945, the Saudi government started to document the residents of the city and started documenting the demographics of the region. At that time the city was expanding, the old city there was called still Darius. However, Safwa became the popular name which was the word that people used to use for the pure