This study appreciates the level of acceptability of the drink water produced at the station of pumping of Nguba by the households of the cells Nguba and Muhumba in the commune of Ibanda and analyzes the physicochemical properties of this water and bench a comparison with that produced with the factory of Murhundu. The results of the our investigations into the ground near the households supplied with Regideso starting from the station give up the use of this water like feed water and prefer being fed with the water of Murhundu to the reasons which the water of the station is not better physicochemical quality departure its treatment which is incomplete. After the laboratory, the physicochemical analyses show that all the analyzed parameters are in the acceptable one except for the samples of the station of Nguba where conductivity, the chlorine concentration, the turbidity and the suspended matter.

This study assesses the physicochemical and bacteriological quality of water from Buhama and Kalimbi springs in the health areas of Lemera and Kasheke in South Kivu from analyzes of the physicochemical and bacteriological properties of drinking water in these health areas. The results of physico-chemical analyze show that these waters, in general, are within the WHO recommended standards for drinking water. From the bacteriological point of view, it appears that some sites are polluted and carry germs that can harm the health of the population causing water-borne diseases. Thus, measures to combat this microbiological pollution aiming at setting up a committee supported by the political and administrative leaders for the management of water and the sensitization of the population on the water management and the water diseases must be taken before that the situation no longer becomes dangerous.

This research undertaken in the town of Bukavu in the east of the Democratic Republic of Congo (RDC) tries to include/understand the motivations of the choice of the high-risk sites by the households and analizes the social, environmental and medical problems of the households living on the high-risk sites with Bukavu as well as the solutions under consideration by the latter. To collect the data, of the investigations by questionnaire near 390 households were realized. Software SPSS version 18.0 and analyzes it of contents were used to analyze the data. The results show the choice of the high-risk sites by the households on the high-risk sites is explained by the crisis of housing in the town of Bukavu, related on the deficiency of space face a demographic explosion, the growth the rural migration and on the exorbitant land price and the permissiveness of the administration. The populations living on the high-risk sites with Bukavu test serious problems of which the risk of slip of the grounds, the risk of the crumblings of the grounds, the risk of the floods, the risk of the accidents in the home, the risk of the falls, the risk of the depression of the grounds, the risk of the shocks. It is also observed on the high-risk sites with Bukavu, a high frequency of pathologies of which paludism, influenza, the typhoid fever, diarrheal diseases and respiratory diseases. These problems are due to the expansion of illegal human establishments where almost all the social, environmental and medical conditions are not met. It appears clearly that the majority of the solutions under consideration by the households living on the high-risk sites with Bukavu are not effective.