Hydro-Ressources completed an integrated water management study for the Côté Gold open-pit mine in northern Ontario. Our work included 3D groundwater flow modeling, surface hydrology analysis, and the design of a long-term pumping system. The study evaluated expected inflows and provided strategies for pit wall depressurization and overall water management. This comprehensive approach gave Iamgold a realistic and safe plan for dewatering throughout the mine’s life. The project highlights our ability to combine field testing, innovation, and advanced modeling to support the development of large-scale mining projects.

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.

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.