Hydrology Expert Witnesses

L. David Givler, MSCE, PE is the president of the firm. He is a technical expert in hydrology and hydraulics with experience since 1984. His experience in municipal engineering and site development began in 1987. He obtained his Master of Science in hydraulics in 1986 from Lehigh University and his...

21st is the oldest Independent Forensic Animation firm in the nation. We generate sophisticated 3-dimensional computer animation of your expert's opinion. We utilize science and technology to help present complex events for the triers of fact. Since 1989, we have created thousands of animations for...

Mark McGinnis, CCM is the owner of Fair Skies Consulting, LLC. Mark provides Expert Witness services, Weather Hazard Planning and Weather Analytics to clients. He has over twenty years of experience forecasting, analyzing and communicating complex meteorological data including, tornadoes,...

James Jacobs, PG, CHG, CPetG has over 30 yrs as a geologist and practices nationwide. Inspection, cleanup, cost estimate, cost recovery for oil and gas fields, pipeline spills, sewer leaks, underground storage tanks, and industrial facilities. Oil and gas production verification. Licensed in AK,...

WRCS provides worldwide litigation support in surface water hydrology and hydraulics, forensic flood evaluations and flood control systems design and operation. Mr. Van Bruggen has over 30 years of civil engineering experience, and has testified over 100 times as a water resources engineering...

Edward Aguado, Ph.D., a university professor has experience in forensic meteorology and climatology. Experience includes civil and criminal proceedings, depositions and trial testimony. Research background in precipitation, solar energy, and California climatology. Co-author of leading text book on...

Golden Gate Weather Services (GGWS) provides a full array of meteorological services and expertise to the law profession and insurance industry. GGWS assists attorneys for both plaintiff and defendant cases in obtaining, analyzing, interpreting and understanding weather and climatological data....

Frederic G. Snider brings 25 years of national and international experience in geology, geophysics, hydrogeology, the design and implementation of field exploration programs and support of regulatory, legal and public processes. His experience includes work on environmental projects (both hazardous...

DTN recently acquired MetStat, experts in forensic meteorology. The staff at DTN has supported numerous defendants and prosecutors in a variety of weather-related cases since 2006. Our pin-point meteorology investigations put weather events into a historical and/or statistical perspective, thereby...

Ruvin Grutman has over 45 years of experience in civil engineering and land surveying. From 1988 to 2006 he was an owner of a medium size engineering company in Los Angeles (GM Engineering). He is an expert in land development projects which include drainage investigations, design of streets,...

Schwerin & Associates, headed up by firm Principal Walter Schwerin, provides Civil Engineering and Planning services on many of the forensic skills required in today's legal environment. If your needs are related to land use matters, storm drainage events, estimating, you would be well served...

Cowan Associates is one of the oldest full service civil engineering firms in the Region. We have been providing multi-disciplinary engineering and technical services to our clients since 1958. CAI has designed many specialty and challenging land developments and facilities over the last forty five...

George Govatos, Ph.D., PE provides analysis and testimony in Accident Reconstruction, and Highway Design and Safety. With over 27+ years of experience and 1700+ cases, Dr. Govatos has had the opportunity to testify numerous times in both deposition and at trial. His other forensic work has included...