Source Matelas es un poblado del departamento del Oeste en la Republica de Haiti, con escasos recursos economicos y con un bajo nivel de vcurso hidrico. En el presente trabajo se realiza una primera aproximacion al estudio de prefactibilidad de construccion de un embalse con cuantificacion de la oferta hidrica superficial en la region, por medio de metodologias hidrologicas para la estimacion de la informacion desconocida. Se calculan las componentes del balance hidrico de largo plazo y se estiman los caudales diarios que alimentaran el modelo de simulacion del embalse. El caudal medio estimado del rio Source Matelas en el punto escogido para la construccion de la presa es de 26 L/s. Con base en dicha simulacion de la operacion del embalse, se estima el volumen necesario para compensar diferentes fracciones del caudal medio y se determina que la demanda de agua poblacional es abastecida totalmente si se construye un embalse de 212.000 m3 de capacidad. Abstract: Source Matelas, located in the West State, Republic of Haiti, is a town with scarce economical resources and low quality of life, mainly because of the absence almost total of water. In this wor low quality of life, mainly because of the absence almost total of water. In this wor , mainly because of the absence almost total of water. In this work we give a first ap we give a first approximation to a water reservoir pre-feasibility study, related to water supply quantification of the region, by means of hydrological methods to estimate unknown information. Long term components of the hydrological o estimate unknown information. Long term components of the hydrological Long term components of the hydrologicalbalance are calculated and daily mean yield that serves the model of reservoir simulation is estimated. The mean runoff calculated for the Source Matelas River is 0.026 m3/s. Based on reservoir modeling, volume needed to supply different percentages of the mean runoff is calculated. Therefore, it can be seen that population water demand will be supplied totally if a reservoir of 212000 m3 volume is constructed.
