Matrix New World Engineering, a part of True Environmental and its partner firms, have united their strengths to establish the nation's premier environmental and engineering services consulting firm. This powerhouse organization offers an extensive range of services aimed at revolutionizing the built environment and preserving the natural one. Its diverse expertise encompasses environmental remediation, urban planning, engineering iconic coastal and marine structures, developing sustainable energy sources, and pioneering resource extraction methods. Explore further at www.MWNE.com and True-Environmental.com to discover the full scope of our capabilities.

Matrix provides deep expertise in water resources, production well design, and complex hydrogeological characterization. We have an immediate need for an experienced Senior Hydrogeologist to join our team in Phoenix, AZ. Our Arizona Water Services group focuses on high-level consulting with offices in Phoenix, Prescott, and Tucson.

The ideal candidate will be a technical expert in physical hydrogeology, aquifer testing, and the design of complex well systems, possessing the leadership skills to manage large-scale groundwater resource projects from inception through regulatory approval.

### What You’ll Do

Lead Technical Hydrogeology: Direct complex hydrogeologic investigations, including the design and oversight of deep production wells, aquifer storage and recovery (ASR) systems, and large-scale pumping tests.

Aquifer Characterization: Lead the collection and interpretation of lithologic and geophysical data to refine Conceptual Site Models (CSMs) and determine aquifer hydraulic properties (transmissivity, storativity, and leakance).

Regulatory Liaison: Serve as the primary expert for the Arizona Department of Water Resources (ADWR) and Arizona Department of Environmental Quality (ADEQ). Navigate Assured and Adequate Water Supply (AAWS) determinations and Underground Storage Facility (USF) applications.

Project Management: Oversee the lifecycle of groundwater resource projects, including cost estimating, proposal development, budget tracking, and subcontractor management (drilling and geophysical crews).

Managed Aquifer Recharge: Design and implement hydrogeologic characterization programs for recharge sites, focusing on mounding analysis and vadose zone infiltration rates.

Environmental Compliance: Support Remedial Investigations (RI) and Feasibility Studies (FS) by leading groundwater quality assessments and supporting Aquifer Protection Permit (APP) applications.

Mentor & Train: Provide technical guidance and mentorship to junior hydrogeologists and field staff in the areas of well logging, water quality sampling, and hydraulic testing.

### Minimum Requirements

Education: Bachelor’s degree in Geology, Hydrology, or Geological Engineering; Master’s degree preferred.

Licensure:Registered Geologist (P.G.) in Arizona; or ability to obtain reciprocity within 12 months.

Experience: 10+ years in hydrogeology, water resource development, or environmental remediation.

Leadership: 2+ years of experience leading technical teams or managing large-scale field programs.

Technical Skills: Advanced proficiency in aquifer test analysis (e.g., AQTESOLV), well design specifications, and Geographic Information Systems (GIS).

Writing: Proven track record of producing high-quality technical reports, permit applications, and proposals.

Environment: Capable of balancing field-based oversight with office-based project management in a fast-paced environment.

This role will require the successful completion of fit for work testing which includes Drug & Alcohol testing

### Preferred Requirements

Expertise in zonal groundwater sampling and advanced borehole geophysical log interpretation.

Deep familiarity with the Active Management Area (AMA) regulatory framework in Arizona.

Experience managing large-diameter municipal or industrial production well installations (1,500+ feet BGS).

Strong data management skills for handling large regional hydrogeologic datasets

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

Senior Hydrogeologist

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