Argus Technologies

Our Team

David Welch, M.S., G.P., P.G., C.E.G., C.HG.

Geophysicist/Engineering Geologist

Mr. Welch received his Masters of Science in Geology from San Jose State University in 1996, specializing in Geophysics. He is our California Registered Geophysicist overseeing levee integrity studies in the Sacramento San Joaquin Delta and other geophysics projects. Prior to working with ARGUS, Dave was employed at Neil O. Anderson, running their geosciences department (hydrogeology, engineering geology, and geophysics). As such he performed ground-water investigations, environmental site evaluations, aquifer testing, percolation testing, nitrate loading studies, hydrogeologic characterization, slope stability investigations, fault investigations, geologic hazard investigations, soil suitability, geologic mapping, probabilistic-deterministic earthquake hazard analysis, ground-penetrating-radar, electromagnetic, magnetic, magnetotelluric, direct current resistivity, MASW, seismic refraction, gravity, and down-hole measurements.

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Louise Pellerin, Ph.D.

Geophysical Consultant

Dr. Pellerin received her Ph.D. in geophysics in 1992 from the University of Utah, Salt Lake City. Her professional expertise is in the theory and application of electromagnetic methods to environmental and engineering problems, particularly watershed hydrology. She has served as a research geophysicist for the U.S. Geological Survey, a staff scientist at the Lawrence Berkeley National Laboratory, as well as worked the private sector. She is a founding member as well as past president of the Near Surface Geophysics Section of the Society of Exploration Geophysicists and serves as a reviewer for the Journal of Applied Geophysics, Journal of Environmental and Engineering Geophysics, Geophysical Prospecting, and Geophysics. Through Green Engineering, Inc., Dr. Pellerin is working with Argus to develop sophisticated interpretation methods for the EM3 and EM-34 systems to allow three dimensional imaging of levees.

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Thomas Potters, P.E.

Project Manager

Mr. Potters is a professional engineer, graduating from Michigan Technological University in Houghton Michigan. He is also certified by the California Institute of Technology, Pasadena, in Engineering Management. Tom has worked in the private sector for the past 30 years managing both domestic and foreign projects. He excels in budgeting, scheduling, logistics, regulatory compliance and reporting, as well as managing customer/client relationships, and maintaining quality control. He has worked with ARGUS for the past two years, having spent the prior seven as a Program Manager for All Weather, Inc., directing on-budget, on-time deliveries of weather sensor and display systems for the U.S., South America, and the Middle East.

DeAndra DiBene

GIS Specialist

Ms. DiBene received her certificate in GIS from American River College, Sacramento in 2008. She is currently working toward her degree in Geography. Her primary responsibility is to prepare maps and geo-reference aerials, historic maps, and geophysical data, with engineering plans for ARGUS projects. DeAndra is a keymember of the geophysics field crew, specializing in data collection, data processing and GPS coordination.

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Rod Sorenson

Mechanical Engineer, Prototype Fabricator

Rod Sorenson earned his B.S. in Mathematics in 1971, from California State University, Sacramento. He then began a career as a metalcraft engineer, performing testing operations in chassis rigidity and suspension dynamics for General Motors. He was in charge of programming and operation of CNC and manual machinery, metal fabrication, welding, product inspection, testing, painting, inventory planning, transportation, and management for equipment and crews for a period of 27 years. He then began teaching at the Department of Physics at California State University, Sacramento, in the fields of Calibration, Automated Manufacturing, and Programming for Automated Machinery. He also served as a prototype fabricator for faculty and students involved in research, with extensive experience in testing and test data evaluation. He has designed the current platforms for both the EM3 and Discover instruments. Currently, Rod devotes part of his time to the advancement and exploitation of unobtrusive electromagnetic geophysical technologies coupled with high resolution GPS systems and high speed data logging for Argus Technologies.

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John A. Lopez, Principal

Chief Operations Officer
Photograph of John A. Lopez

John Lopez is an owner, Chief Operations Officer, and visionary of the company. He began mobilizing geophysical equipment back in 1999, working to ruggedize and improve the data quality for applications in archaeology. Previously, John worked as a systems engineer for the Dalmo Victor Corporation, a leading manufacturer of radar antennas (since acquired by Applied Technology Division of Litton), served as a science reporter for Space Daily (a news network of science and technology targeted at industry, science, and educational experts), and was a a member of IBMs Artificial Intelligence Laboratory Tiger Team. He continues to follow advances in cellular automata/genetic algorithms and complex adaptive systems research at the Santa Fe Institute in New Mexico. John majored in Anthropology from San Jose State University, conducting parallel studies in system theory. His first consulting firm, in the early 1980s, restructured large company operations to run more efficiently, promoting what he called the cybernetic corporation.

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Kim Tremaine, Principal, Ph.C.

Photo of Kim Tremaine

Kim Tremaine is a Ph.D. candidate in Anthropology at the University of California Davis. She earned her M.A. in Cultural Resources Management from Sonoma State University. She and her partner, John Lopez, established Tremaine & Associates, Inc. in 1994. Her interest in geophysics began with applications in archaeology. Over the past six years, Kim has facilitated the expansion of our near-surface geophysical applications to transportation projects, levee integrity studies, and tunnel detection, through demonstrations and pioneering practices in both field and analytical methods. Her role in the company is largely focused on Business Development and marketing.

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