GSI Principals

John A. Connor, P.E., P.G., BCEE

Connor E12A3991 portrait casual small 6 2015 Mr. Connor is President of GSI Environmental Inc. (GSI). He received an M.S. in Civil Engineering from Stanford University and has 35 years of experience in environmental engineering, with specialization in environmental site investigation, human health and ecological risk assessment, and corrective action design. Mr. Connor is a Registered Professional Engineer, a Licensed Professional Geoscientist, and a Board Certified Environmental Engineer by the American Academy of Environmental Engineering. [Read More about Mr. Connor]

David T. Adamson, PH.D., P.E.

DAsmDr. Adamson is a Principal Engineer with GSI Environmental Inc. and has more than 15 years of experience in academic research and as an environmental consultant. He has provided consulting expertise on a broad range of projects including chemical fate and transport, site investigation, remedy screening, risk assessment, remedial design, and litigation matters. [Read More about Dr. Adamson]

Gino C. Bianchi-Mosquera, P.G.

GSI Gino Bianchi 12A4130 small 6 2015 Dr. Bianchi is a Vice President and Principal Geochemist with GSI and has more than 27 years of experience directing and conducting environmental projects in the United States, Canada, and Latin America, with particular emphasis on international environmental litigation projects. [Read More about Dr. Bianchi-Mosquera]

Anthony D. Daus, III, P.G.

GSI Tony Daus 12A4182 small 6 2015 Mr. Daus is a Vice President with GSI Environmental Inc. in Orange County, California. He received a M.S degree in Earth Sciences (Hydrogeology) from the University of Waterloo and a B.S. degree in Geology from the University of Missouri. He has over 31 years of experience on environmental and water resource projects. [Read More about Mr. Daus]

Mark P. Hemingway, P.G.

Mr. HeminGSI Mark Hemingway 12A4194 small 6 2015gway is a Vice President with GSI Environmental Inc. in Austin, Texas. He received a M.S. degree in Geology from the New Mexico Institute of Mining and Technology and a B.S. degree in Geology from the University of Texas. He has over 30 years of experience on environmental projects and has participated in and supervised hydrogeologic investigations and remedial actions in refineries, petrochemical plants, and industrial facilities across the United States and internationally. [Read More about Mr. Hemingway]

Robert S. Lee, P.G.

GSI Robert Lee 12A4295 small 6 2015 Mr. Lee is a hydrogeologist and a Vice President of GSI. He also serves as administrator of GSI's Health and Safety Program. He received his B.S. degree in geology from Beloit College in Wisconsin and is a Licensed Professional Geoscientist. Mr. Lee has 35 years of experience as a professional geologist in the petroleum and environmental industries, specializing in design, implementation and management of environmental site investigation and remediation. [Read More about Mr. Lee]


Travis M. McGuire, P.E.

TMjsmMr. McGuire is a Principal Engineer with GSI Environmental Inc. and has more than 15 years of experience as an environmental consultant. He has provided consulting expertise on a broad range of projects including environmental due diligence, site investigation, risk assessment, chemical fate and transport, remediation, cost allocation, property redevelopment, vapor intrusion, and litigation matters. [Read More about Mr. McGuire]

Charles J. Newell, Ph.D., P.E., BCEE

CJN Photo large 1 2012 updated Dr. Newell is a Vice President of GSI Environmental Inc. (GSI) and has 31 years of experience managing environmental engineering projects. He is a member of the American Academy of Environmental Engineers, a NGWA Certified Ground Water Professional and an Adjunct Professor at Rice University in Houston Texas. Mr. Newell has co-authored three EPA publications, five environmental decision support software systems, numerous technical articles and two books. [Read More about Dr. Newell]

Shawn M. Paquette, P.E., BCEE

GSI Shawn Paquette 12A4166 small 6 2015 Mr. Paquette is a Vice President and Principal Environmental Engineer with GSI Environmental Inc. He received a B.S. from the University of Vermont in Civil Engineering and an M.S. in Environmental Engineering from Rice University and has over 19 years of experience in the environmental industry. [Read More about Mr. Paquette]

Ann P. Smith, P.E., BCEE

GSI Ann Smith 12A4217 small Ms. Smith is a Vice President with GSI Environmental Inc. in Austin, Texas. She received Masters degrees in Environmental Engineering and Business Administration from Rice University and a B.S. degree in Civil Engineering from Texas A&M University. She has over 30 years of experience on engineering and environmental projects addressing soil and groundwater contamination for City, State, Federal and private industry clients. [Read More about Ms. Smith]

Matthew Q. Lentz, REM, CPESC, CPSWQ, QSD/QSP, BCES

Matt resizedMr. Lentz has over 18 years of experience providing storm water and multi-media compliance support to industry, the public sector, and the legal community. He has successfully managed large, logistically challenging projects and has extensive experience developing compliance programs involving storm water, hazardous waste, hazardous materials, air quality, wastewater, and a variety of health and safety related programs. [Read More about Mr. Lentz]

Tom E. McHugh, Ph.D., D.A.B.T.

TEM headshot 11 2015 resized Dr. McHugh is a Principal with GSI Environmental Inc., in Houston, Texas. He is a Diplomate of the American Board of Toxicology and has over 25 years of experience in the environmental industry with academic research and private consulting organizations. [Read More about Dr. McHugh.]

Chin Man William Mok, Ph.D., P.E., P.G., GE, D.WRE, D.GE

Chin Man Photo full 6 2015 Dr. Mok is a Vice President of GSI Environmental Inc. (GSI) in California, engaging in consulting, research, and teaching. He received his Ph.D. (Reliability/Groundwater) and M.S. (Geotechnical/Earthquake) in civil and environmental engineering from the University of California at Berkeley, and his bachelor's degree in civil and structural engineering from the University of Hong Kong. [Read More about Dr. Mok]

Sorab Panday, Ph.D.

Sorab princDr. Sorab Panday has 26 years of experience as a water resource modeling consultant. His expertise is in development and application of state-of-the-art model solutions for water resource management including: surface-water/groundwater flow/transport; vadose zone and air-phase flow and transport; multi-component, multi-phase, non-isothermal flow/transport; agricultural, industrial, mining and urbanization impacts on surface/subsurface flow and water quality; impacts of climate changes; saltwater intrusion analysis; remediation; and water-rights/permitting/litigation support. [Read more about Dr. Panday]

Ileana A.L. Rhodes, Ph.D.

ILR1Dr. Rhodes is a Principal Scientist with GSI Environmental. Prior to joining GSI, during her 36-year career with Shell Oil, she was the company’s subject matter expert for environmental chemistry, analysis and forensics. Her areas of expertise include development of sampling and analytical protocols for identification of environmentally significant compounds in soil, sediment, and water; characterization and fingerprinting of petroleum and petroleum products; assessment of hazardous air pollutants in process streams; and characterization of gas and produced water related to hydraulic fracturing activities. [Read More about Dr. Rhodes]

Robert Scofield, D. Env., M.P.H.

Robert Scofield Headshot S3822 SQ WEB 6 2015 Dr. Scofield is a Principal Toxicologist and Vice President with GSI Environmental Inc., and has more than 34 years of experience directing and conducting environmental assessment, remediation, and due diligence projects in the United States and abroad. [Read More about Dr. Scofield]

Timothy S. Simpson, P.E., G.E.

Simpson Tim Photo ResizedMr.Simpson is a Vice President with GSI Environmental Inc. and has more than 32 years of diversified experience in environmental science and engineering with a strong focus on storm water regulations and mitigation, site investigation and remediation, expert witness (state and federal court) and property redevelopment. [Read More about Mr. Simpson]

Curtis C. Stanley, P.G., C.P.G.S.

CCS1Mr. Stanley is a Principal Hydrogeologist with GSI Environmental Inc. He has more than 39 years experience in environmental management and water resources issues, including more than 37 years with Shell Oil, where he was Global Discipline Leader for Soil and Groundwater Management. He is an expert in issues related to soil and groundwater contamination and water resources, specializing in site investigation and remediation and risk-based corrective action. [Read More about Mr. Stanley]

Timothy F. Wood, P.G., C.HG.

Tim Wood Head Shot Sept2015 resizedMr. Wood is a Principal Geologist with GSI Environmental Inc. and has more than 24 years of experience as a technical consultant. Mr. Wood has applied his expertise in geology and hydrogeology to environmental site assessment, remedial investigation, risk-based corrective action and site closure strategy development, property redevelopment, and due diligence for mergers and acquisitions. [Read More about Mr. Wood]