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South 32 updates Hermosa project timeline, monitoring and community commitments

5810947 · August 20, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Pat Reisner of South 32 provided a quarterly update to Santa Cruz County supervisors on construction progress, baseline water and air monitoring, voluntary well protection agreements and workforce training plans tied to a new workforce center in Nogales.

Pat Reisner, president of South 32 Hermosa Inc., told the Santa Cruz County Board of Supervisors that company construction is about 40% complete and that one Department of Defense-funded decline to access a manganese deposit is 67% complete. He said the company has not decided whether it will mine the manganese deposit and that any such decision depends on how the battery-technology market develops.

Reisner described voluntary baseline monitoring the company began in 2020–2021, saying South 32 has two to three years of private well baseline data within a five-mile radius of the project and an extensive network of vibrating-wire piezometers that provide real-time aquifer pressure and water-level readings. He said the company is offering voluntary “well…

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