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Water Management
Water treatment and responsible water consumption are essential components of Endeavour Silver’s mining practices, both during construction and throughout the lifecycle of a mining project. Our aim is to protect the environment, safeguard community health and contribute to the overall sustainability of our mines. Proper water treatment prevents the release of potentially harmful substances into the environment, safeguarding local ecosystems and water quality and reducing health risks.
Local Water Bodies
The Terronera Project is located in the watershed Rio Ameca – Ixtapa. This watershed covers an area of 3,160 km2. The watershed western boundary occurs at the Pacific Ocean. The subbasin, including the Terronera Project, is the San Sebastián drainage, capturing approximately 84,700 ha of drainage area. Our project is subject to stringent environmental regulations that require the responsible management of water. Longer term, after mining is complete at Terronera, effluent treatment may be required during restoration and closure to prevent impacts on water bodies. This is a crucial step in the reclamation process, allowing ecosystems to recover and thrive.
Water Supply and Distribution
Fresh water will be piped from Portal 1 and Portal 2 to a fresh water tank located in the process plant site, Portal 1 area, and Portal 2 ancillary facilities. Process water will be distributed throughout the areas by an HDPE pipeline. It will convey water to various facilities, including the truck shop, workshop, and warehouse, dining building, emergency services building in the process plant site area, and the truck shop, mine dry, and administration buildings in the Portal 2 area. Remote locations such as the gatehouse and filter plant will use bottled water.
Sub-Surface Hydrology
The Terronera Project is located above the northwest quadrant of the Mixtlán aquifer. Endeavour Silver is anticipating that the Terronera Project will use excess water pumped from the underground mine workings and recovered from the tailings filter plant for 100% of the operations water demand.
Surface Water Control
Surface contact water generated will be collected in a water tank and will be distributed through pipes to return to process.
Seepage collection ponds will be located below the TSF , temporary waste rock storage facility and ROM stockpile pad. These ponds will collect surface and sub-surface contact drainage from these locations to be reincorporated for the process in the plant.
The Water Balance at Terronera
