Geolex: Professional Staff
Overview
Geolex, Inc. is an internationally-recognized environmental consulting firm providing litigation support, liability assessment, merger and acquisition, due diligence and strategic environmental management services.

Alberto A. Gutiérrez, R.G.
Geolex’s President and CEO, Alberto A. Gutiérrez, has over 35 years of experience in the fields of hydrogeology, environmental geology, regulatory compliance and litigation support. He is a registered professional geologist in 20 states and with the American Institute of Professional Geologists (AIPG). He has extensive experience as a qualified expert witness in federal and state courts and has provided consulting services and expert witness testimony for many Fortune 500 clients. His expertise includes hydrogeologic and environmental consulting, evaluation of corporate environmental liabilities and environmental liability/cost allocation. He specializes in litigation support, contaminant source identification, liability and remedial cost allocation, hazardous materials management and regulatory compliance. He has done extensive work and is a qualified expert witness on the fate and transport of contaminants in all environmental media, including surface water, groundwater, soil vapor and air. He is an expert in oil and gas development, acid gas and CO2 sequestration and in the international petroleum and mining industries. Mr. Gutiérrez has managed implementation of major RCRA and CERCLA investigation and remedial programs. He has also coordinated PRP groups, performed cost allocations at Superfund sites and directed technical support strategies for evaluation and reduction of liability associated with corporate acquisitions and brownfield site redevelopment.
Julie W. Gutiérrez, M.B.A.
As Geolex’s Executive Vice President, Julie W. Gutiérrez has over 35 years of experience in business management and financial analysis. Ms. Gutiérrez provides litigation support services to Geolex’s clients in areas of liability assessment for corporate mergers and acquisitions, NCP compliance cost analysis, natural resource damage assessments, and CERCLA cost allocation. In addition, Ms. Gutiérrez provides services to clients in negotiating with federal and state agencies and with all phases of permitting of acid gas and CO2 sequestration wells and other industrial facilities.
Dr. David T. Lescinsky
Dr. David T. Lescinsky provides professional geologic services on multiple projects. Dr. Lescinsky has over 18 years of experience as a senior geologist performing site evaluations, field studies, remote sensing, and image and data analysis. Dr. Lescinsky provides Geolex with expertise in the evaluation of contaminant fate and transport through laboratory and computer-based vadose zone transport modeling and stratigraphic and lithologic analysis. Dr. Lescinsky is closely involved in acid gas injection and CO2 sequestration projects, performing site evaluations, formation analyses, and permitting injection wells. He also designs and implements product recovery and groundwater monitoring systems. Dr. Lescinsky provides environmental litigation support in historical research, data evaluation and contaminant fate and transport.
James C. Hunter, R.G.
James C. Hunter provides services as a professional geologist, and is registered in the State of California. With over 27 years of experience in the fields of hydrogeology and environmental geology, Mr. Hunter enhances Geolex’s in-house capabilities for contaminant transport modeling, Geographical Information Systems analysis, aerial photographic interpretation, field investigation studies, and the design and implementation of environmental action plans, including health and safety and compliance audits. Mr. Hunter provides regulatory support, permitting and geological field services for oil and gas production facilities throughout the United States. He has developed fate and transport models for dissolved and DNAPL/LNAPL phases of petroleum and chlorinated solvents, including degradation and half-live analysis to determine the ages and sources of multiple releases. He has also directed site evaluations, formation analysis, well design, permitting and drilling supervision for acid gas injection wells, incorporating both hydrogen sulfide gas management and carbon dioxide sequestration.
Selected Publications:
- Gutierrez, Alberto A. 1997, Chemical Fingerprinting: A Useful Tool for Source Identification, Differentiation and Remedial Cost Allocation, Hazardous Waste Strategies Update, Volume 8, Number 2, Winter 1997
- Gutierrez, Alberto A., 1996, Reducing Environmental Liability - A Claims Management Approach, Best’s Review / Property Casualty April, 1996
- Gutierrez, Alberto A.and Selke, Michael W., 1996 Rapid and Cost-Effective Characterization of Deep Groundwater Contamination, Soil and Groundwater Cleanup, April 1996 Issue
- Gutierrez, Alberto A., and Thomas, Trent H., 1990, Negotiating and Implementing RCRA 3008(h) Orders, Federal Facilities Environmental Journal, Volume 1, No. 3, p 313-323
- Lescinsky, David T., Gutierrez, Alberto A., Hunter, James C., and Gutierrez, Julie W., 2010, Acid Gas Injection in the Permian Basin: Recent Case Studies from Southeast New Mexico, Acid Gas Injection Symposium 2010, Calgary, Alberta







