Ongoing projects and Achievements
Calibre Mina El Limòn
Calibre Mining operates the El Limón mine in western Nicaragua, which includes an open-pit area (Limon Central) and three underground operations (Santa Pancha, Panteon, Veta Nueva). The underground mines have been facing significant hot water inflows. To enhance production and reduce underground temperatures, Calibre plans to dewater the Panteon Norte area before mining.Hydro-Ressources was contracted in 2023 to analyze existing data and propose an effective dewatering strategy, including a drilling campaign and fieldwork.
Pine Point-Osisko Metals
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.
First Majestic Silver Corp - Santa Elena
The Santa Elena mine is located in the state of Sonora, northern Mexico, about 150 km from Hermosillo. It is 100% owned and operated by the Canadian company First Majestic Silver Corp. The mine is an underground operation focused on extracting silver and gold.The complex includes two main mines: Santa Elena and Ermitaño. The Ermitaño deposit, located 3.5 km from the main processing plant, began production in 2021 and reached commercial scale in 2022. This addition increased the overall capacity and efficiency of the mining complex. In 2024, the mine produced approximately 10.3 million ounces silver equivalent, including 1.5 million ounces of silver and 104,000 ounces of gold. Proven and probable reserves total 10.5 million ounces of silver and 307,000 ounces of gold. Measured and indicated resources are estimated at 16.3 million ounces silver and 435,000 ounces gold. Ore is extracted using modern underground mining methods, with a strong focus on safety and operational efficiency. Development work is ongoing to access new mineralized zones.First Majestic is also actively exploring around the complex to identify new deposits and extend the mine’s life. Santa Elena remains a key asset in the company’s portfolio in Mexico.
Stornoway Mine Fox
Located 350 km northeast of Chibougamau, the Renard diamond mine, Stornoway's flagship project, is the only diamond mine in Quebec. Following some incongruities of the piezometric measurements compared to the models developed at the level of operational dewatering, Hydro-Ressources proposes a series of tracing tests in profile in the surface holes as well as underground pumping tests in order to better define the site fault network. Understanding underground flows is essential for the design and planning of operational dewatering.
Goldcorp Eleonore Project
Goldcorp recently started operating the Éléonore mine, located in the James Bay region. It is an underground mine which will have a depth of around 1,400m. Currently, the exploration well has been completed to a depth of 690m and the production well and ramp are under construction (at approximately 900m). Goldcorp is also in the process of analyzing the recovery of the surface pillar via an open pit mining.
Los Gatos-Gatos Sliver
Los Gatos is an open pit underground mine located in the state of Chihuahua in Mexico. In 2018, despite the presence of 12 surface capture wells, mining operations encountered high water flows underground. In addition, this water of more than 60 degrees celcius made the challenge even more difficult. Thanks to profile tracing tests, it was possible to isolate a permeable fault and to build 2 underground capture wells with greater flow rates than all the other wells combined.
Excellon Resources La Platosa
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.
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