POSITION OVERVIEW
The Senior Hydrogeologist is responsible for leading the assessment, planning, design, implementation, and optimization of mine dewatering, groundwater management, and hydrogeological monitoring programs that support safe and efficient mining operations. This position provides technical leadership for site-wide hydrogeological activities and serves as a key advisor to mine planning, geotechnical engineering, operations, environmental, and processing teams.
ESSENTIAL FUNCTIONS
- Provide technical leadership and oversight for mine dewatering, groundwater management, and surface water management programs.
- Develop and execute strategic dewatering plans aligned with short-, medium-, and long-range mine plans.
- Lead the design, construction, and commissioning of dewatering wells, pumping systems, horizontal drains, piezometers, monitoring wells, and related infrastructure.
- Lead weekly dewatering and water management meetings with cross-functional site stakeholders.
- Develop, calibrate, and maintain groundwater flow models, water balance models, and predictive hydrogeological analyses to support operational and strategic decision-making.
- Prepare technical reports, memoranda, presentations, and regulatory documentation that communicate findings, recommendations, and project status.
- Manage hydrogeological consultants, drilling contractors, and service providers, including scope development, contractor oversight, and performance evaluation.
- Prepare annual operating and capital budgets for hydrogeological programs, including drilling, monitoring systems, dewatering infrastructure, groundwater modeling, and consulting services.
- Mentor and provide technical guidance to junior hydrogeologists, technicians, interns, and other site personnel.
- Support permitting, regulatory compliance, and environmental reporting activities related to groundwater and surface water management.
KNOWLEDGE, SKILLS, AND ABILITIES
- Advanced knowledge of groundwater hydrology, hydrogeology, mine dewatering, aquifer testing, and groundwater monitoring systems.
- Strong understanding of the interaction between groundwater conditions, pit slope stability, and mine planning.
- Demonstrated experience designing and managing dewatering systems in a mining environment.
- Advanced proficiency with groundwater modeling software, water balance modeling tools, GIS platforms, and database management systems.
- Strong understanding of well design, pumping systems, hydraulic testing, and groundwater monitoring instrumentation.
- Knowledge of relevant environmental regulations, water rights, permitting requirements, and industry best practices.
EDUCATION AND EXPERIENCE
- Bachelor's degree in Hydrogeology, Geology, Hydrology, Geological Engineering, or related discipline required.
- Master's degree in Hydrogeology, Hydrology, or related field preferred.
- Professional Geologist (PG), Registered Geologist (RG), or equivalent professional registration preferred or ability to obtain.
- Minimum of 8-12 years of progressively responsible hydrogeological experience, preferably in the mining industry.
- Demonstrated experience leading mine dewatering programs, groundwater investigations, and hydrogeological studies.
- Experience with groundwater flow modeling and water balance development in a mining environment.
- Experience managing consultants, contractors, and multidisciplinary technical projects.
- Valid driver's license required.
The Ray Mine is located 64 miles southeast of Phoenix and 70 miles northeast of Tucson. We have a robust carpool/vanpool program and encourage employees to participate. Employees save more than 50% of their commuting costs while reading, relaxing, or enjoying the view.
ASARCO LLC is an equal opportunity employer. Candidates must possess a current and valid
driver’s license. Offers of employment are contingent upon a successful criminal
background check and pre-employment physical including a drug screen (hair analysis).
Skills Required
- Bachelor’s degree in Hydrogeology, Geology, Hydrology, Geological Engineering, or a related discipline
- 8–12 years of progressively responsible hydrogeological experience, preferably in mining
- Experience leading mine dewatering programs, groundwater investigations, and hydrogeological studies
- Experience with groundwater flow modeling and water balance development in a mining environment
- Experience managing consultants, contractors, and multidisciplinary technical projects
- Valid driver's license
- Master’s degree in Hydrogeology, Hydrology, or a related field
- Professional Geologist, Registered Geologist, or equivalent professional registration, or ability to obtain
- Successful criminal background check
- Pre-employment physical and drug screen
Asarco Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Asarco and has not been reviewed or approved by Asarco.
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Affordable Benefits — Benefits are positioned as “low-cost,” and there are indications of reduced employee health-care contributions for covered roles. Time-off enhancements are also described as part of recent agreement changes, improving total rewards value for some groups.
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Retirement Support — A 401(k) plan with a company match is described as part of the standard package. Match levels are portrayed as potentially strong, though details appear to vary by role or contract.
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Pay Growth & Progression — Material wage increases are described under a newly ratified multi-year union agreement, with large raises reported for some job categories. This suggests improved near-term earnings trajectory for employees covered by the latest contract.
Asarco Insights
What We Do
Grupo Mexico is a transnational mining company with operations in the U.S., Mexico and Peru. ASARCO (American Smelting and Refining Company), the U.S. based subsidiary of Grupo Mexico, is an integrated copper mining, smelting and refining company with approximately 1,700 employees. The company operates three mines, associated mills and smelter in Arizona and a refinery complex in Texas, which includes plants that produce copper cathode & rod.
