Chile - - Chacabuquito Hydro Power Project : environmental assessment (Vol. 2) : Main report (Spanish)

This is an environmental assessment for the Chacabuquito Hydroelectric Power Project. Perhaps the most environmentally and socially sensitive issue associated with the project will be hydrological imbalance along the Aconcagua River between the intake...  See More + This is an environmental assessment for the Chacabuquito Hydroelectric Power Project. Perhaps the most environmentally and socially sensitive issue associated with the project will be hydrological imbalance along the Aconcagua River between the intake and the plant discharge. In-depth hydrological analysis was carried out and minimum ecological flows were determined using a wide range of methodologies. Only two species of concern inhabit the area. The water intake needed for the project and the further use of the power plant discharge will affect water flows and water levels in a stretch of the River. But adhering to regulations will minimize severe impacts on aquatic ecosystems. An established minimum flow is considered adequate and any potentially negative impacts on aquatic biodiversity are further minimized by the presence of a major affluent to the Aconcagua downstream from the intake. Three potential impacts were identified--clearing of native vegetation; clearing of trees of some ecological concern; and increasing hydrological imbalance in the river-which are minimal with the exception of the first listed. Construction impacts can be mitigated by the proper handling of excavation materials, drainage works, and the reduction of noise, dust, increased traffic. Tree cutting, animal hunting, and waste disposal beyond the site will be reduced.  See Less -