Glenn M. Duffield 

Glenn M. DuffieldGlenn M. Duffield is the founder and president of HydroSOLVE, Inc., a groundwater services firm headquartered in Reston, Virginia, USA. He is a senior quantitative hydrogeologist with over 30 years of professional consulting experience and the author of AQTESOLV, the world's leading software for aquifer test analysis since 1989. Glenn holds a bachelor's degree in geology from Juniata College and a master's degree in geology/hydrogeology from Penn State.

Glenn's specialties include expertise in the following areas:

  • aquifer testing (pumping tests, slug tests and constant-head tests)
  • groundwater flow and solute transport modeling
  • software development
  • continuing education for ground water professionals

Glenn is the author of , which was voted the best software for pumping test analysis by groundwater professionals in a LinkedIn poll. Glenn is also directly responsible for worldwide software support and education and training.

Prior to establishing HydroSOLVE in 1995, Glenn was a founding member of the Geraghty & Miller (now ARCADIS) Modeling Group which was responsible for providing high-level groundwater modeling and software development services for the company.