Hydrogeological and Environmental Consulting

Southwest Groundwater Consultants (SGC) is an Arizona-based hydrogeological and environmental consulting firm established in 1993 to meet the needs of industry and the public sector for quality, affordable hydrogeologic services. As our name implies, groundwater is the heart of our business. It is also our business to understand the geologic, environmental, political, and regulatory factors controlling the availability and use of water – the world’s most precious resource.

SGC’s interdisciplinary team of professional hydrologists, hydrogeologists, engineers, and field technicians work throughout Arizona and neighboring states. SGC is a division of Matrix New World Engineering (Matrix). Matrix has more than 150 professional engineers, surveyors, landscape architects, geologists, biologists, and Geographic Information Systems (GIS) specialists in 10 offices nationwide who, along with SGC’s dedicated and hardworking employees, are available to provide clients with the excellence they have come to expect.

We are a small business and proud of our track record in providing high quality, personal service at competitive hourly rates. Our valued clients include: municipalities, State of Arizona regulatory agencies, utility companies, Native American Tribal governments, law firms, mining companies, master planned communities, engineering firms, private businesses, and individuals.

If you think SGC can be of service to you, please contact us. We would sincerely appreciate the opportunity to assist you with your project’s water resources and environmental needs.

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The Leading Team

STEPHEN D. NOEL, R.G.

STEPHEN D. NOEL, R.G.

Director / Principal Hydrogeologist
WILLIAM M. GREENSLADE, P.E., R.G.

WILLIAM M. GREENSLADE, P.E., R.G.

Principal Hydrogeologist
Nathan E. Miller

Nathan E. Miller

Supervising Modeler / Hydrologist
Jeffrey R. Littell, R.G.

Jeffrey R. Littell, R.G.

Vice President / National Client Programs

Supporting Staff

Darren E. Berg, E.I.T.

Darren E. Berg, E.I.T.

Manager, Environmental & Engineering Services
Harry S. Brenton, R.G.

Harry S. Brenton, R.G.

Director of Hydrogeological Services
Jeremy S. Johnson

Jeremy S. Johnson

GIS Specialist
Bridget R. Hoagland

Bridget R. Hoagland

Staff Scientist
SCOT JOURNELL, P.E.

SCOT JOURNELL, P.E.

Senior Project Engineer
KEVIN D. HEBERT, R.G.

KEVIN D. HEBERT, R.G.

Senior Project Hydrogeologist
DEANN G. HAUVER

DEANN G. HAUVER

Senior Project Hydrologist
CHRIS R. CATALANO, R.G.

CHRIS R. CATALANO, R.G.

Senior Project Hydrogeologist
DYLAN J. EASTHOUSE, R.G.

DYLAN J. EASTHOUSE, R.G.

Senior Project Hydrogeologist
GEORGIA L. WATERS, R.G.

GEORGIA L. WATERS, R.G.

Senior Project Hydrogeologist
ANDREW L. DURHAM

ANDREW L. DURHAM

Project Hydrologist
Justin A. Clark

Justin A. Clark

Modeler / Hydrologist
Brianna McClure

Brianna McClure

Modeler / Hydrologist
DAVID R. ERICKSON

DAVID R. ERICKSON

Field Technician
PETER D. NOEL

PETER D. NOEL

Field Technician
MARGARET E. GOMPERT

MARGARET E. GOMPERT

Office Manager
JAMES H. HOLT

JAMES H. HOLT

Northern Arizona Market Coordinator