An important Mining Company from the valley of Alhué river, in Melipilla Province, planned a well construction and pumping test campaign downstream the wall that holds its tailing dam.

• Technical supervision and construction design along with pumping tests.
• Pumping test planning, water levels recording, pumping rates and physicochemical parameters measurement.

For each well a construction and pumping test analysis report was handed, which were helpful as a technical record for the involved organisms to apply for a change in groundwater pumping points and the later hydraulic barrier startup.