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Developer says Hermosa project will cut water use, expand local jobs; monitoring and well-protection emphasized
Summary
Representatives from the Hermosa/South32 project briefed the Nogales City Council on construction progress, a voluntary well-protection program, expanded air and groundwater monitoring, workforce training and a timeline that anticipates first underground production in 2027 and full ramp by 2029.
Pat Reisner, senior representative for the Hermosa project, told the Nogales City Council the project is roughly 40% through construction and will use “90% less water than any other mine in Arizona” by employing new on-site processes. He said baseline groundwater monitoring of private wells began in 2021 and that the company has offered voluntary well-protection agreements to owners within a five-mile radius, to provide alternate water supply at the company’s expense if an operational impact occurs.
The presentation emphasized that the well monitoring and protection actions are voluntary and not required by law. Reisner said the company already operates more than 100 piezometers and continuous sensors around the site and that “the movements we’ve seen in these…
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