Hydrogeology / Geohydrology Expert Witnesses: 3

David Wilshaw, MS, PG has over 35 years of experience in Engineering Geology, Geotechnics, Engineering Geophysics, Hydrogeology and Geo-Environmental 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 California, 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.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 185 to 190 expert reports, been deposed approximately 45 to 50 times, and testified in federal and state court (including jury and non-jury trials) approximately 40 to 45 times. 

Forensic cases have occurred in approximately 40 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.

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.