The "Hydrodynamic and Salinity Study for Boquerón's Wildlife Reserve" project, funded by the Department of Natural and Environmental Resources of Puerto Rico, was established in order to know the water balance between the salt water pumped from the Boquerón spout and the freshwaters from the drainage system of the South Irrigation Canal. This project is divided into a hydrological study to quantify the amount of water that is provided by the basins adjacent to the drainage channel and the refuge, and a hydraulic study to determine the water balance within the refuge. Both studies will allow the creation of a two-dimensional hydrodynamic model at the Boquerón reserve.