Key Staff
Principals and Staff Professionals

	Abra J. Bentley, M.S. President			Richard K. Zimmerman, M.S., R.G. Vice President of Hydrogeology Tucson Office Manager
	Chris Jacquemin, P.E. Vice President Scottsdale Office Manager			James G. Peck, P.E., M.Sc. J.D. Vice President
	Harold W. Bentley, Ph.D. Principal Scientist			Stewart Smith, M.S., R.G. Associate Hydrogeologist
	John Villinski, Ph.D. Hydrologist			Daniel R. Simpson, R.G. Senior Hydrogeologist
	Neil J. Babb, B.S. Geologist			Jennifer Acevedo, M.S. Environmental Technician
	Bryan J. Travis, Ph.D. Senior Modeler			Warren A. Thompson, R.G. Geologist

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