Our Team

Prof. Yoram Rubin

Photo of Yoram RubinDr. Yoram Rubin provides overall and technical leadership to HGP Inc. Dr. Rubin is a professor of environmental engineering at UC Berkeley, in the Department of Civil and Environmental Engineering. His areas of expertise include groundwater hydrology, contaminant transport, subsurface characterization of geological media, spatial analysis and geostatistics, and environmental risk assessment. He is the recipient of the 2004 Hydrologic Sciences Award of the Hydrology Section of the American Geophysical Union. In 2006, he was nominated a Fellow of the American Geophysical Union.   

Additional information is available at http://env.berkeley.edu/~rubin

Contact Information:
  • Email: yoram.rubin(at)hgp-inc.net
  • Phone (510) 295-5680

Gretchen R. Miller, Research Engineer

Photo of Gretchen MillerGretchen Miller is a research engineer at HGP Inc. She received her B.Sc. and M.Sc. degrees in Geological Engineering from University of Missouri - Rolla. She is currently a PhD candidate at UC Berkeley and brings experience in geological and environmental engineering, risk assessment, and numerical modeling of reactive flow and transport processes.

Additional information at http://www.ce.berkeley.edu/~gmiller/


Contact Information
  • Email:  gretchen.r.miller(at)hgp-inc.net

Pascual Benito, Research Engineer

Photo of Pascual BenitoPascual Benito is a research engineer at HGP Inc.. He received his B.A. in Geology from Amherst College, and his M.Sc. at UC Berkeley in Civil & Environmental Engineering. He is a PhD candidate at UC Berkeley and he brings experience in geology and environmental engineering, as well as numerical modeling of flow & transport processes.

Additional information at http://www.ce.berkeley.edu/~pbenito/

Contact information:
  • Email: pascual.benito(at)hgp-inc.net
  • Phone (510) 520-5031


Dr. Jatal Mannapperumaa

Photo of JatalDr. Jatal Mannapperuma is a researcher in the Food Science and Technology Department at U.C. Davis, wher he researches membrane applications in food processing and studies heat and mass transfer in food processing. He also works on improving energy efficient technologies and residual management in the food industry.  He holds several patents and bring extensive expertise and knowledge of the food processing industry.

Additional information at http://foodscience.ucdavis.edu/people/academic-and-research-affiliates/jmannapperuma

Contact information:
  • Email: jdmannapperuma(at)ucdavis.edu
  • phone: (530)752-8449


Prof. Ulrich Mayer

Photo of Pascual BenitoDr. Ulrich "Uli" Mayer is an associate professor of groundwater hydrology in the Department of  Earth & Ocean Sciences at the University of British Columbia in Canada. His areas of expertise include the geochemical evolution of low-temperature groundwater systems with a focus on groundwater contamination and remediation. His research has lead to the development of the MIN3P modeling software,  designed to investigate reactive transport in saturated and unsaturated porous media in partial equilibrium systems. The model is capable of simulating groundwater flow, advective-dispersive transport of dissolved species and advective-diffusive gas transport directly coupled with a variety of bio-geochemical and inorganic reactions. 

Additional information at http://www.eos.ubc.ca/public/people/faculty/U.Mayer.html

Contact information:
  • Email: umayer(at)eos.ubc.ca
  • Phone (604)822-1539 


Additional Team member profiles coming soon....