Hydrogeology Expert Witnesses

East Lansing, Michigan

Civil Engineering, Environmental Engineering - Groundwater, Wastewater, Remediation, Bioremediation, Modeling, Stormwater, Hydrogeology, Hydrology, Geotechnical, Microbiology, Contamination, Geochemistry, Construction, Demolition, Home Inspection

Dr. TImothy Mayotte is President and CEO of Mayotte Design & Engineering, PC, a civil and environmental engineering design firm based in East Lansing, Michigan. Since 2003, MD&E has proved itself a highly responsive design, advocate and risk management partner for clients in the energy, automotive, commercial printing, textile, pharmaceutical, chemical, real estate, and legal industries. MD&E offers a variety of services, specializing in the design and engineering of treatment solutions for wastewater, groundwater, stormwater and contaminated soil, sediment and air. Dr. Mayotte has assisted clientele across globe, having completed projects in: Alabama; Arizona; California; Colorado; Connecticut; Illinois; Indiana; Iowa; Kansas, Massachusetts; Michigan; Missouri, Mississippi; Nevada; New Jersey; New York; Ohio; Oregon; Tennessee; Texas; Vermont; Virginia; West Virginia; Washington, Wisconsin; Wyoming; British Columbia; Ontario; Quebec; Brazil; China; Czech Republic; Italy; and Mex...

Concord, New Hampshire

Hydrology, Environmental - 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 ...

Carlsbad, New Mexico

Mining, Geotechnical Engineering - 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...

Lancaster, Pennsylvania

Environmental, Hydrology - sinkhole, groundwater, landslide, drilling, hydrogeology, rockfall, karst, vibration, blast, earthquake, contamination, pipeline, fracking, water, erosion, construction, stormwater, physics, leak, cave

Dr. Bechtel is geophysicist/geologist, and a world-renowned expert on sinkholes. But not just sinkholes; bedrock conditions, caves, water pollution, and all issues related to karst terranes. Dr. Bechtel has 25+ years of experience in the engineering/environmental industry, as well as faculty positions at Franklin & Marshall College, the University of Memphis and the University of Pennsylvania, and is an appointed member of the International Karst Commission. Dr. Bechtel has been an expert in dozens of sinkole or karst-related cases - often related to causes of sinkholes and/or water problems. Dr. Bechtel also has expertise and courtroom experience in Unconventional Oil & Gas, hydraulic fracturing (fracking), and fracking-industry-related earthquakes, horizontal directional drilling (HDD), as well as all fields of seismology, seismic hazards, vibration monitoring and analysis, subsidence, soil creep, landslides, rockfalls, non-destructive evaluation of earthen dams and levees, subsu...

West Chester, Pennsylvania

Environmental, Engineering - Hydrology, Stormwater Management, Sewers, Sewer Systems, Wastewater, Sanitary Sewage, Water, Septic Systems, Flooding, Groundwater, Hydrogeology, Drainage, Mold, Wells, Runoff, Backups, Wastewater Treatment, Utility, Construction, Maintenance

Nationwide experience as hydrologist, environmental engineer, and civil engineer, including for FOG/grease trap, design, contamination, pollution, sinkhole, grading, hydraulics, pumping, water quality, storm sewer, drinking water, water distribution, water treatment, dam, regulations, Standard of Care, waste management, erosion, soil, air quality, water main, detention, hazardous waste, spill, sedimentation, wetland, floodplain, toxicity, remediation, health and safety, modeling, odor, combined sewer, overflow, aquifer, hydraulic fracturing, hydroplaning, and metering. Forensic cases for Mr. Dutill have comprised federal and state courts. As indicated in feedback from attorneys on expert witness cases, some of the strengths of Mr. Dutill include understandable guidance, responsiveness, timeliness, communication, effective report writing, strong testimony (including on cross), efficiency, organization, and assistance with framing case issues. Approximately 45% of his cases have be...

Coopersburg, Pennsylvania

Geology, Environmental - 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...