Hydrogeology / Geohydrology Expert Witnesses: 5

David Wilshaw, MS, PG has over 35 years of experience in Engineering Geology, Geotechnics, Engineering Geophysics, Hydrogeology and Geoenvironmental Assessments. Since 2012, his company Britannia Solutions LLC has continuously provided expert geological opinions to insurance carriers, private individuals, corporations and their respective legal advisers. 

Mr. Wilshaw offers services as a Professional Geologist and expert witness with respect to disputed sinkhole insurance claims and many other specialized areas of engineering geology, including Ground Collapse, Slope Failures, Underground Mining Subsidence and the Adequacy of Ground Investigations in relation to claims under construction contracts. David Wilshaw has been a certified Neutral Evaluator under §627.7074 F.S. since 2011. He is licensed as a Professional Geologist in Florida, Pennsylvania and Tennessee and is registered as a Chartered Geologist (Geological Society of London) in the United Kingdom. 

Mr. Wishaw is also owner and President of Integrity Drilling & Geophysical Services, LLC (www.idgsfl.com), a company he established in 2013 providing geotechnical drilling, soil testing and geophysical services throughout Florida and the SE USA. In 2019 he was instrumental in relocating Ground Stiffness Surveys Ltd from the UK to Florida and is President of its successor company Ground Stiffness Surveys LLC (www.groundstiffnesssurveys.com). He is a frequent contributor to local, national and international media (TV, radio, print). Download full resume here: David Wilshaw - CV with testimony details.pdf

Litigation Services Include:

• Plaintiff and Defense
• Pre-Litigation Consulting
• Ground Hazards Specialist
• Testifying Expert at Deposition over 150 times.
• Testifying Expert at Trial over 40 times.
• Neutral Evaluation of over 150 Disputed Sinkhole Insurance Claims in accordance with Section 627.7074 Florida Statutes
• Peer review and expert opinion to defense and plaintiff attorneys on over 3,000 disputed claims for sinkhole loss
• National and International Experience

View Consulting Profile.

For over 40 years, Chuck Dutill, P.E., D.F.E. has been performing Hydrology and Environmental Engineering nationwide. He has focused on wastewater, stormwater, flooding, sewers, septic systems, groundwater, drainage, runoff, hydrology, hydraulics, backups, drinking water, and air quality. 

Litigation Support - Mr. Dutill has spent approximately 30% of his professional time providing expert witness services for over 40 years. Approximately 45 to 50% of his expert witness services have been for defendants and about 50 to 55% for plaintiffs. He has issued 165 to 170 expert reports, been deposed approximately 45 to 50 times, and testified in federal and state court (including jury and non-jury trials) approximately 35 to 40 times. 

Forensic cases have occurred in approximately 35 states. As indicated in feedback from attorneys on expert witness cases, some of his strengths include understandable guidance, responsiveness, timeliness, communication, effective report writing, strong testimony (including on cross), efficiency, organization, and assistance with framing case issues. 

Expertise:

CV Available Upon Request View Mr. Dutill's Consulting Profile.

David G. Koger is a Remote Sensing Image Analysis expert with over 40 years of experience in the field. He configured and operates a state-of-the-art remote sensing image analysis and geographic information system and consults on various remote sensing applications.  Background Experience - Mr. Koger was an early researcher and developer of Satellite Data Applications. He installed analog and digital image analysis workstations and trained users in defense, major oil, and academia in Panama, Ecuador, Chile, Australia, Germany, France, Italy, Africa and the U.S. His clients include the Department of Energy, National Cancer Institute, American Farm Bureau, broadcast journalism, law firms, and several hundred oil and gas explorationists.

In 2007, Mr. Koger conducted a study to map regional geomorphic features for all of Nebraska. Since that time, ten earthquakes of 3.0 and above on the Richter scale have coincided with features mapped. Using Digital Airborne Platforms, he has studied huge areas around the globe.  

In his unique line of work, Mr. Koger has performed forensics film analysis, searched for Noah's Ark, and analyzed images of the Shroud of Turin and the underwater video that found the Titanic.  

Litigation Support - Mr. Koger offers Forensic Digital Image Analysis of remotely sensed, aerial photo (digital or film), and underwater video. His services include forensics, time-series studies, and documentation of surface damages, wildfires, material movements. Expert witness strategies and research methodologies are available to attorneys representing plaintiff and defendant. 

View David G. Koger's Consulting Profile.

Rudolph P. Frizzi, PE, GE, D.GE is a Civil Engineer with over 25 years of extensive practical Foundation and Geotechnical Engineering experience. Mr. Frizzi has extensive project management experience throughout the United States and internationally, with particular emphasis on:

• Foundation Design and Construction in Urban Areas
• Large Scale Land and Waterfront Public and Private Development Projects

Mr. Frizzi has obtained extensive field, office supervision, and project management experience including soil and rock sampling and in-situ testing; monitoring pre , during, and post-construction with state-of-the-art geotechnical instrumentation; nondestructive testing; aqueous and sub-aqueous inspections and investigations; and heavy construction which has contributed to his practical approach to geotechnical problem solving. In addition to his "engineer of record" experience, Mr. Frizzi has provided expert geotechnical consultation and trial testimony on over 50 excavation and foundation litigation cases throughout the United States and internationally. His services are available to attorneys for Plaintiff and Defense.

Areas of Forensic Expertise:

• Foundations for Stadiums, Arenas, High-Rise Structures in Urban Areas
• Embankment and Dam Stability
• Large-scale Land and Waterfront / Marine Structures and Development
• Shallow and Deep Foundation Systems
• Soft and Hard Rock Treatment
• Earthwork
• Ground Improvement of Waste Fills
• Temporary and Permanent Lateral Support Systems for Deep Excavations
• Geotechnical Instrumentation and Vibration Monitoring
• Construction Dewatering

View Rudolph Frizzi's Consulting Profile.

Michelle Macauley is a Geotechnical Engineer and Trenchless Expert that specializes in aspects of new installation and rehabilitation projects for infrastructure replacement, improvement, and capacity enhancement using trenchless technologies. She has spent over 21 years in the Pacific Northwest, with a particular emphasis on geotechnical engineering, trenchless design, and involvement in the water / wastewater industry. 

Background Experience: Prior to starting Macauley Trenchless, Ms. Macauley was the National Trenchless Practice Lead for Jacobs Engineering and oversaw multiple trenchless projects across the company. Prior to working at Jacobs, she was a senior geotechnical engineer specializing in trenchless design and construction with GeoEngineers and Staheli Trenchless Consultants. 

In addition to her extensive project experience, she has been active in trenchless technologies at a national level.  She is currently serving on the Board of Directors for the North American Society for Trenchless Technology (NASTT) and is a regular presenter at NASTT's national trenchless conference (No-Dig). She is an active member of ASCE and serves on the Trenchless Installation of Pipes (TIPs) subcommittee, is helping re-write the Manual of Practice (MoP) on Pipe Ramming, is helping write the new MoP on Direct Pipe, and has consulted on other MoPs.

Litigation Supoprt: Ms. Macauley provides expert witness services to attorneys representing plainitff and defendant. Her services include deposition, mediation, and trial. She is a professional Civil Engineer in Washington, Alaska, California, Oregon, Texas, amd a Licensed Engineering Geologist in Washington.

Areas of Expertise: 

Education:

• M.S., Geological Engineering, University of Alaska, Fairbanks, 1996
• B.S., Geological Sciences, University of Washington, 1994

View Michelle Macauley's Consulting Profile.