Superintendent, Water Treatment Plant

Date: Nov 27, 2025

Location: Patagonia, AZ, US, 85624

Company: South32 Group Operations Pty. Ltd.

Discover a Brighter Future

At South32, we’re meeting the challenge of enabling a sustainable future through our focus on responsibly producing commodities critical for a low-carbon world.

As a collaborative, caring and inclusive company, there’s no better place to make a genuine difference. Together we’re making a positive, global impact that has the potential to change lives.

Whatever career path you choose, we’ll support you every step of the way to learn, grow and succeed. So join us, step towards a brighter future and leave your legacy.

ABOUT Hermosa

Hermosa, located approximately 75 miles south-east of Tucson, Arizona, is the only advanced mining project in the United States as of 2023 that could produce two federally designated critical minerals—manganese and zinc—as well as silver and lead. The project has the potential to help power the nation’s clean energy future, strengthen the domestic supply chain of critical minerals, grow the local economy, and improve lives in Santa Cruz County and the surrounding community for generations to come.

ACERCA de Hermosa

Hermosa, ubicado a aproximadamente 75 millas al sur este de Tucson, Arizona, es el único proyecto de minería avanzada en los Estados Unidos hasta la fecha que puede producir dos minerales designados como críticos por el gobierno federal: manganeso y zinc, así como también plata y plomo. El proyecto tiene el potencial de ayudar a impulsar el futuro energético limpio del país, reforzar la cadena de suministro nacional de minerales esenciales, hacer crecer la economía local y mejorar la calidad de vida en el condado de Santa Cruz y en las comunidades aledañas para las generaciones venideras.

WHAT SOUTH32 OFFERS

Annual short-term incentive bonus that recognizes both your individual performance and the overall success of the business.

When you choose to contribute more into your retirement savings, South32 will match it up to a certain percentage.

South32 provides you with 4 weeks paid time off.12 weeks full-paid parental leave for primary carers and 2 weeks full-paid parental leave for secondary carers.

The Role

The Superintendent, Water Treatment Plant is responsible for fostering effective relationships within the Maintenance team and across departments, managing contractors and suppliers, maintaining well fields and water balance, overseeing laboratory operations, and ensuring accurate updates in SAP. Strong troubleshooting, problem-solving, and team-building skills, along with proficiency in MS Office and knowledge of water/wastewater treatment standards and regulations, are essential. The Superintendent manages the safe operations of both water treatment plants, shaft clarifier and other site infrastructure and produce water to the required standard that will protect our environmental permit and ensure the construction and shaft sinking activities are not impacted. The role will be supervise 4 water treatment plant supervisors as well as 3 laboratory technicians. This position is located at the Hermosa mine site located near Patagonia, AZ

Accountabilities

- Safety and Sustainability by eliminating serious injuries, maintaining environmental permit compliance, and managing operational risks. This includes leading hazard identification activities (with emphasis on PL4) through LSED and workplace interactions and actively monitoring outfalls to guarantee compliance.

- Operational Excellence by maximizing WTP2 throughput while meeting APP quality standards, implementing MOS plans.

- Systems Improvement through OPEX and Capex optimization, service contract management, plant control and automation, and continuous improvement initiatives. Key responsibilities include implementing defect elimination processes, enhancing process monitoring for water quality, and delivering cost-saving initiatives.

- Success is measured by zero serious injuries, zero reportable environmental events, achievement of water discharge and training targets, completion of projects, identification and closure of defects, and deployment of MOS plans.

Qualifications & Experience

- Bachelor’s degree in chemical engineering, environmental Science, or related degree OR equivalent job-related work experience to total 9 years

- A minimum of 5 years of managing Water Tereatment Plant operations or related experience.

- Must have all regulator licensing within the state of Arizona

- Knowledge of mechanical, electrical, and piping systems required

- understanding of water/wastewater treatment operations

- Preferred to have ADEQ Operator Certificate for Grade 1 Water Treatment Plant; or must have ability to qualify for certificate (requires examination including treatment technologies, system maintenance, regulatory protocols, safety, mathematics, and general system maintenance).

- Fluent communication skill and understand English, written read and spoken

- Microsoft Office

South32 is committed to building and maintaining an inclusive and diverse workforce that reflects the communities in which we operate. We provide a recruitment process that is fair, equitable and accessible for all and we encourage candidates from all backgrounds to apply.

South32 está comprometido a cimentar y mantener una plantilla de trabajadores diversa e inclusiva que refleje las comunidades en las cuales trabajamos. Proporcionamos una proceso de contratación que es justo, equitativo y accesible para todos y alentamos la aplicación de candidatos de todas las procedencias.

Nearest Major Market: Nogales