Geology Expert Witnesses
Geology expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on geology. The geology expert witness listings on this page are typically from fields/areas of expertise such as: Civil Engineering, Economics, Environmental, Geology, Geotechnical Engineering, Hydrology, Mining, and Oil and Gas.
Hayden Fischer, M.S., P.E., P.G.
Bryant Consultants
Englewood, Colorado
Geotechnical Engineering, Hydrology
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Construction Defects, Engineering - Civil, Environmental Engineering, Geology
Mr. Fischer’s areas of expertise include, but are not necessarily limited to, the following areas:
- Hydrologic and hydraulic modeling, including watershed delineation, flood event simulation, and drainage design review.
- Drainage and flatwork analysis, such as sloping, clearance, drainage configuration, and code compliance.
- Expansive and collapsible soils analysis and mitigation, including foundation performance.
- Geophysical modeling and analysis, including electrical resistivity, ground-penetrating radar, electromagnetic methods, and seismic reflection/refraction.
- Groundwater monitoring, sampling, and modeling.
- Geospatial analysis and remote sensing.
- Slope stability monitoring and modeling.
- Automated remote monitoring, including vibration, tilt, settlement, and groundwater.
- Mining material volume and quantity estimation and visualization.
Michael Mobile, Ph.D., CGWP
Groundwater Hydrologist - MODFLOW, PFAS, etc.
McDonald Morrissey Associates
Concord, New Hampshire
Hydrology, Environmental
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MODFLOW, Groundwater, Groundwater Modeling, Numerical Modeling, Contaminant Transport, Hydrogeology, Geology, PFAS, PFOA, PFOS, Groundwater Mounding, Water Rights, Mounding Analysis, Riparian Rights, Stream Depletion, Conjunctive Use, PCE, TCE, NAPL, MT3D
Mike is the president of McDonald Morrissey Associates and has nearly 20 years of experience in the areas of quantitative hydrogeology and hydrology, contaminant fate-and-transport assessment, and water resources management. His professional experience has included numerical model development (e.g., MODFLOW) in support of several large-scale, high-profile construction activities, natural resource management projects, and litigation/conflict resolution assignments. The sensitive nature of much of this work has allowed Mike to explore a wide variety of innovative and interdisciplinary approaches to meeting client needs and addressing site-specific challenges.
Prior to joining MMA, Mike worked for GZA GeoEnvironmental, Inc., where he acted as an in-house expert on Per- and Polyfluoroalkyl Substances (PFAS) and the evolving regulatory environment surrounding these compounds. Between 2014 and 2018, he served as project manager of two New Hampshire site investigations primarily focused ...
Mark J. Vanarelli, PhD, PE, IntPE, PG, BCEE, F.ASCE
Geomechanics & Groundwater Expert
Carlsbad, New Mexico
Mining, Geotechnical Engineering
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Hydrogeology, Hydrology, Geological Engineering, Groundwater, Geology, Water Resources Engineering, Remediation Design, Hazardous Waste Management, Site Investigations, Mining Engineering, Tunnel Engineering, Geotechnical Engineering
I am a licensed Professional Engineer in mining, civil and geological engineering. I have over 35 years of experience in subsurface and surface analyses. I am an independent practitioner and Senior Subject Matter Expert for the US Department of Energy at the Carlsbad Field Office's (CBFO) Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico. I provide senior technical advice and recommendations to the CBFO Manager, Assistant Manager and Director, Facility Engineering Division, on matters pertaining to mining engineering, ground control, mine safety, geology/groundwater engineering, underground mine construction and drift, back and ribs maintenance, mine shaft and hoist construction and maintenance, surface mining facilities, and systems construction and maintenance, and input and coordinates with other CBFO staff.
I graduated with degrees in mining and geological engineering from the Colorado School of Mines which is ranked #1 in the world in mining and mineral engineering...
Thomas D Gillespie, P.G.
Gilmore & Associates, Inc.
Coopersburg, Pennsylvania
Geology, Environmental
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Groundwater, Hydrogeology, Geology, Geo-Hazards, Mining, Stormwater, Oil & Gas, Bedrock Aquifer, Groundwater Contamination, Environmental Forensics, Environmental Evaluation, Environment, Water Resources, Water Supply, Karst, Karst Geology, Karst Hydrogeology, Sinkholes
Expertise in hydrogeology, geology and environmental forensics with a specialization in groundwater flow and contaminant transport in fractured bedrock aquifers.
Mr. Gillespie's technical expertise is complemented by an industry insider’s savvy of corporate needs and operations and the regulatory acumen of a former agency reviewer and bureau official. He is a published researcher in hydrostructural geology and karst hydrogeology, an adjunct university professor of geology and a frequent provider of continuing professional education courses. Mr. Gillespie is routinely invited to speak on matters of earth, environment and energy to government committees, national business organizations and educational institutions. He developed and leads a geoResource Risk Reduction practice, specializing in strategic representation in regulatory and legal venues. Mr. Gillespie has provided litigation support, testifying expert services, expert regulatory negotiation support and public representa...
Bill Cline
Oil and gas expert reports, valuations, witness
GaffneyCline
Houston, Texas
Oil and Gas, Economics
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Valuation of petroleum assets, international oil and gas, petroleum contracts development and negotiation support, petroleum sector resource management and fiscal reform, petroleum engineering, energy, geology
Mr. Cline has acted in the capacity of expert witness particularly with respect to valuation of petroleum properties and/or petroleum industry practices in numerous arbitration, mediation and litigation proceedings including: ExxonMobil vs. Venezuela (ICSID); ExxonMobil vs. Petróleos de Venezuela (ICC); Anadarko Petroleum/Maersk vs. Sonatrach (UNCITRAL); Maersk vs. Algeria (ICSID); Sonatrach vs. Duke (UNCITRAL); Texaco vs. Apache (AAA); Vanco vs. Ukraine (Stockholm Chamber of Commerce); Occidental vs. Ecuador (mediation); CNOOC vs. Talisman (mediation); a series of arbitrations related to Egypt’s natural gas sector (ICC, ICSID, UNCITRAL and CRCICA); Midland Resources vs. Shtaif et al. (Ontario Superior Court); Total/ExxonMobil/Chevron/Nexen vs. NNPC (Nigerian arbitration); Repsol vs. Chevron (Spanish litigation); Niko vs. Bangladesh (ICSID and Bangladesh litigation); First National Petroleum vs. TNG (Stockholm Chamber of Commerce); Nexen/Occidental et al. vs. Yemen and multiple case...
Michelle L Macauley
Geotechnical Engineer and Trenchless Expert
Macauley Expert Services
Tacoma, Washington
Geotechnical Engineering, Civil Engineering
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trenchless, drilling, tunnel, tunneling, pipeline, HDD, microtunnel, auger, boring, pipe, ramming, sinkhole, geology, construction, DSC, differing, horizontal, directional
I am a nationally recognized Geotechnical Engineer and Trenchless Expert. I have been involved with litigation matters involving construction issues related to pipeline installations using trenchless technologies.
Qualifications and Accreditation
M.S., Geological Engineering, University of Alaska, Fairbanks, 1996
B.S., Geological Sciences, University of Washington, 1994
California: Professional Engineer (Civil), Cert. No. C74224
Washington: Professional Engineer (Civil), Lic. No. 37412
Alaska: Professional Engineer (Civil), Lic. No. AELC11636
Memberships and Professional Organizations
American Society of Civil Engineer (ASCE)
• Executive Committee, Pipeline Division, Board member, 10/2024 to present
• Manual of Practice (MOP) for Introduction to Trenchless Technologies (new MOP), Committee chair, 9/2024 to present
• MOP for Horizontal Directional Drilling (MOP 108) committee member, 2021 to present
• MOP for the Direct Steerable Pipe Thrusting (MOP 155), committee member, 2017 t...