Excellon Resources is a Canadian company that operates a silver mine in the Durango region of Mexico. The company is currently mining at a depth of around 140m and the groundwater level is around 130m deep. In the sectors located under the roof of the aquifer, water infiltration is major and the pumping rate at the beginning of 2016 is 17,000 usgpm. A dewatering project is underway and the objective is to increase the pumping rate to 28,000usgpm. To carry out this project, a sequence of underground wells are under construction. The Technosub company installs the pumps in the mine.

Osisko Metals' Pine Point project is located on the south shore of Great Slave Lake in Canada's Northwest Territories, between Hay River to the west and Fort Resolution to the east. The Pine Point project has strong potential for mineral resource expansion. Hydro-Ressources was mandated to estimate the flows entering the 53 future mines during the preliminary economic study. Several field tests have been carried out by HRI technical staff since 2020, and to this day we are still working in concert with Osisko. Hydro-Ressources has completed its largest digital simulation project to date with this project.

The Cumberland zinc mine is part of a mining complex (Nyrstar Tennessee Mines) belonging to the Nyrstar company. It is a room and pillar type underground mine with a depth of about 500m. The deposit is located in paleo-karst, in a surrounding rock composed of limestone.