New underground mine project aims for zero environmental discharge in Arizona

July 04, 2025 | Mohave County, Arizona


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New underground mine project aims for zero environmental discharge in Arizona
The Mohave County Public Lands and Recreation Commission meeting on July 3, 2025, focused on the details of a new mining project that promises minimal environmental impact. The project, which will primarily take place underground, is expected to disturb only two acres of public land, with the majority of operations occurring on private land.

The mining area will utilize a method known as long hole open stoping, with a single entry point for personnel and equipment. The operation aims to produce approximately 30,000 tons of copper equivalent annually, along with concentrates of zinc and lead, which may include precious metals like silver and gold.

Key facilities will include a processing plant for crushing, milling, and flotation, as well as a waste rock storage facility. The project plans to manage tailings effectively, with about 60% stored above ground and the remainder mixed with cement and placed underground to prevent subsidence. This method is designed to mitigate surface impacts, ensuring that the mining activities do not affect the land above.

The mining operation will adhere to Arizona's stringent environmental standards, employing technologies that prevent any discharge into the environment. A robust monitoring network will be established to oversee the facilities during operations and into closure, ensuring compliance with environmental regulations.

Overall, the meeting highlighted the project's commitment to sustainable mining practices while addressing the economic benefits it could bring to the region. The next steps will involve further assessments and community engagement as the project moves forward.

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