Evaluación de la calidad física, química y microbiológica del agua para consumo humano de la junta de agua potable de la parroquia Bolívar, cantón Pelileo, provincia de Tungurahua.

Abstract

The objective of this research was to evaluate the physical, chemical and microbiological quality of water for human consumption of the Potable Water Board of the Bolívar Parish, Pelileo canton, Tungurahua province, in order to determine if it is suitable for human consumption. Three samplings were carried out during the months of May and June 2017, each with twenty-eight sampling benchmark that included two slopes, seven storage tanks and the sampling was carried out following the established in the NTE INEN 2176: 2013 norm "Water. Water Quality Sampling. Sampling Techniques". The determined parameters were physical (temperature, pH, conductivity and total solids), chemical (nitrites, nitrates, fluorides, phosphates, ammoniums, chlorides and hardness) and microbiological (Fecal Coliforms), as required by NTE INEN 1108: 2014 norm. "Drinking water. Requirements". The results obtained indicated that 100% of the samples fulfilled with the regulations in the parameters of temperature, total dissolved solids, nitrates, nitrites, phosphates, chlorides, ammonium and hardness; Regarding to the colour, pH and fluorine it was found that approximately 83% comply with the regulations; finally, in the microbiological analysis it was determined that 71% of the samples did not comply with the provisions of the current standard. It was concluded that the water of the Bolívar parish is not suitable for human consumption mainly because it does not meet the microbiological requirement. It is recommended the use of chlorine in sufficient quantities to counteract the microbial load, as well as a more frequent cleaning of the storage tanks.