• Accident Investigation
• Admiralty & Maritime
• Aerosols
• Agricultural
• Automotive
• Chemicals
• Coal
• Construction
• Crops
• Demonstrative Evidence/Exhibits
• Document Examination
• Driver Behavior
• Environmental
• Environmental Toxicology
• Explosions
• Fire
• Fuels
• Geology
• Geotechnical Engineering
• Hazardous Materials
• Hazardous Waste
• Hydrology & Groundwater
• Industrial Hygiene & Mold
• Insects & Pests
• Labels & Warnings
• Lead Poisoning
• Mapping & Surveying
• Mathematical Sciences
• Occupational Medicine
• Oil & Gas
• Oil & Gas Appraisal
• OSHA
• Paint & Coatings
• Pesticides
• Petrochemicals
• Pipelines
• Pollution
• Real Estate Leasing
• Refineries
• Safety
• Sanitary Engineering/Waste Management
• Seismology
• Slip, Trip & Fall
• Soil
• Visibility
• Waterproofing
• Weather & Meteorology
• Wrongful Death

Q: Please list your professional accreditations, degrees, licenses, and certificates granted:

A: Degrees
Ph.D., Atmospheric Science and Meteorology, Purdue University, 1976
M.S., Physics, Purdue University, 1974
B.S., Physics and Mathematics (Dean's Distinguished List, Sigma Pi Sigma Physics Honors), Baylor University, 1972

Dissertation
A Theoretical Investigation of Atmospheric Convective Modes as a Function of Rayleigh Number, Prandtl Number and Eddy Anisotropy ; 1977, Meteor. Soc. Japan, Vol. 55, No. 4, 341 - 363.



Certification and Honors:
Certified Professional Geophysicist, AAPG Certification #26
Licensed Geophysicist, Texas State Board of Professional Geoscientists License #1330
Associate of the Scientific Research Society of North America
Sigma Pi Sigma , National Physics Honors Society
Distinguished Expert, National Forensic Center
Who's Who in the South and Southwest - 1981
Member - American Meteorological Society

Q: Please list your affiliations or memberships in any professional and/or industry organizations:

A: Professional Affiliations

American Meteorological Society

American Association of Petroleum Geologists

National Association of Environmental Professionals

Air and Waste Management Association

Society of Exploration Geophysicists

Scientific Research Society of North America

National Physics Honor Society

American Bar Association, Associate Member Litigation Division

Q: Please list any teaching or speaking experience you have had, including subject matter:

A: Dr. David L. Mitchell is an authority on the numerical modeling of geophysical and atmospheric data with a Doctorate in Meteorology from Purdue University . Dr. Mitchell has over 28 years of technical modeling experience in industry and consulting. His business experience includes various research, project management and technical consulting positions with Conoco, Getty Oil Company, Texaco, Tenneco, British Petroleum, Leviathan Gas Pipeline LLP and IBM Corporation. Dr Mitchell has extensive knowledge of Forensic Meteorology and has published his research results on the modeling of atmospheric stability and convection. Dr. Mitchell is an expert in the field of Air Pollution Meteorology and Groundwater Pollution Modeling with over 28 years of experience with projects and litigation cases requiring the mathematical modeling of wave propagation in porous elastic media, geophysical and geological 2D and 3D reservoir modeling, atmospheric fluid dynamics and air dispersion modeling. Dr. Mitchell is a Licensed Geophysicist in the State of Texas, Certified by the Texas State Board of Geoscientists and is an expert in the areas of Geophysical Modeling and Geological Modeling for the characterization of reservoirs and the migration of fluids. He is an expert in the field of reservoir characterization and modeling with extensive knowledge of groundwater modeling techniques and the transport of contaminants within aquifer systems. He has extensive litigation experience with the Forensic Geosciences and has provided forensic litigation support for criminal and civil investigations and insurance cases involving accidents, release of toxic pollutants, personal injury and property damage. Dr. Mitchell is a member of the American Association of Petroleum Geologists, the American Meteorological Society , the Air and Waste Management Association, and the National Association of Environmental Professionals. Dr. Mitchell is also an Associate Member of the American Bar Association with affiliation with the Litigation Division and is a Certified Geophysicist and a Licensed Professional Geoscientist .

Q: Have any of your accreditations ever been investigated, suspended or removed? (if yes, explain)

A: No

Q: On how many occasions have you been retained as an expert?

A: Numerious. Litigation Case Lists/References provided upon request.

Q: For what area(s) of expertise have you been retained as an expert?

A: GEO Associates has provided technical support and expert testimony on issues of scientific data and mathematical modeling to the Petroleum Industry, the Insurance Industry and the Legal Profession in the area of Forensic Geosciences. Forensic Meteorology litigation cases include providing expert witness support and testimony for Meteorological Data Analysis, Air Pollution Analysis and Modeling and Weather Event Re-Construction cases both Domestic and International. Forensic Geosciences litigation cases include groundwater modeling and analysis and reservoir characterization for the migration of fluids. Litigation support services and expert witness testimony for civil and criminal investigations and insurance industry cases (both plaintiff and defendant) involve Groundwater Pollution and Data Analysis, Forensic Geology and Geophysics, Hydrology Modeling, and Forensic Meteorology including Air Quality, Weather Event Re-Construction and Force Majeure cases.


Litigation Case examples include:

1) Multiple cases involving Air Dispersion Modeling of Chemical Pollutants/Particulate Matter and Weather Wind Profile analysis in defense of petrochemical facilities being sued by surrounding neighborhoods due to Hazardous Chemical Releases.

2) Weather Pattern Re-Construction and analysis of Historical Rainfall data in an urban setting in defense of commercial building owner being sued due to Flooding occurrences resulting in property damage.

3) Re-construction of Weather Conditions and Wind data related to the occurrence of Dense Ground Fog and Reduced Visibility conditions resulting in a major, Multi-Vehicle Freeway Accident and personal injury.

4) Historical Wind Data analysis and Air Quality Modeling in support of a Class Action suit brought by a rural subdivision downwind of a polluting industrial complex.

5) Numerous Forensic Meteorology cases involving Force Majeure and the Re-Construction of Weather Conditions occurring at the time of an Accident, or Criminal Action.

6) Modeling and Analysis for multiple cases involving Leaking Railway Cars and Industrial Tanks creating Hazardous Spills and Releases of Hazardous Pollutants to both Air and Aquifers.


7) Numerous cases requiring Air Dispersion Modeling Analysis to determine concentration levels of Particulate Matter (PM10, PM2.5) during industrial operations and accidents.



Litigation Case List and References Provided Upon Request

Q: In what percentage of your cases were you retained by the plaintiff?

A: 50%

Q: In what percentage of your cases were you retained by the defendant?

A: 50%

Q: On how many occasions have you had your deposition taken?

A: Numerious. Litigation Case Lists/References provided upon request.

Q: When was the last time you had your deposition taken?

A: Litigation Case Lists/References provided upon request.

Q: On how many occasions have you been qualified by a court to give expert testimony?

A: Numerious. Litigation Case Lists/References provided upon request.

Q: On how many occasions have you testified as an expert in court or before an arbitrator?

A: Numerious. Litigation Case Lists/References provided upon request.

Q: For how many years have you worked with the legal industry as an expert?

A: 15 years

Q: What services do you offer? (E.g.: consulting, testing, reports, site inspections etc.)

A: GEO Associates has provided technical support and expert testimony on issues of scientific data and mathematical modeling to the Petroleum Industry, the Insurance Industry and the Legal Profession in the area of Forensic Geosciences. Forensic Meteorology litigation cases include providing expert witness support and testimony for Meteorological Data Analysis, Air Pollution Analysis and Modeling and Weather Event Re-Construction cases both Domestic and International. Forensic Geosciences litigation cases include groundwater modeling and analysis and reservoir characterization for the migration of fluids. Litigation support services and expert witness testimony for civil and criminal investigations and insurance industry cases (both plaintiff and defendant) involve Groundwater Pollution and Data Analysis, Forensic Geology and Geophysics, Hydrology Modeling, and Forensic Meteorology including Air Quality, Weather Event Re-Construction and Force Majeure cases.

Q: What is your hourly rate to consult with an attorney?

A: Fee Schedule and Retainer Agreement provided upon request.

Q: What is your hourly rate to review documents?

A: Fee Schedule and Retainer Agreement provided upon request.

Q: What is your hourly rate to provide deposition testimony?

A: Fee Schedule and Retainer Agreement provided upon request.

Q: What is your hourly rate to provide testimony at trial?

A: Fee Schedule and Retainer Agreement provided upon request.

Q: Please list any fees other than those stated above (E.g.: travel expenses, copy fees, etc.)

A: Fee Schedule and Retainer Agreement provided upon request.

Litigation Case examples include:

1) Multiple cases involving Air Dispersion Modeling of Chemical Pollutants/Particulate Matter and Weather Wind Profile analysis in defense of petrochemical facilities being sued by surrounding neighborhoods due to Hazardous Chemical Releases.

2) Weather Pattern Re-Construction and analysis of Historical Rainfall data in an urban setting in defense of commercial building owner being sued due to Flooding occurrences resulting in property damage.

3) Re-construction of Weather Conditions and Wind data related to the occurrence of Dense Ground Fog and Reduced Visibility conditions resulting in a major, Multi-Vehicle Freeway Accident and personal injury.

4) Historical Wind Data analysis and Air Quality Modeling in support of a Class Action suit brought by a rural subdivision downwind of a polluting industrial complex.

5) Numerous Forensic Meteorology cases involving Force Majeure and the Re-Construction of Weather Conditions occurring at the time of an Accident, or Criminal Action.

6) Modeling and Analysis for multiple cases involving Leaking Railway Cars and Industrial Tanks creating Hazardous Spills and Releases of Hazardous Pollutants to both Air and Aquifers.


7) Numerous cases requiring Air Dispersion Modeling Analysis to determine concentration levels of Particulate Matter (PM10, PM2.5) during industrial operations and accidents.



Litigation Case List and References Provided Upon Request