Hydrology Expert Witness

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This page contains hydrology expert witnesses who testify, consult and provide litigation support on hydrology and related issues. Hydrology expert witnesses and consultants on this page may form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts. The issues and subjects these hydrology expert witnesses testify regarding may include: Hydrology, Drainage, Flooding, Hydraulics, Water Resources, Grading, Groundwater, Hydrogeology, Runoff, Water, Drinking Water, Erosion, Erosion And Sediment Control, Fema, and Floodplain.

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ELVIS Z. ASONG, PhD CLIMALOGIK INC.

Calgary, Alberta
Hydrology, Meteorology - Climate Change, weather forecasting, weather, climate change adaptation, forecasting, water, water resources, hydrological modeling, floods, droughts, statistics, environmental, disaster risk reduction, Northern, Infrastructure
Dr. Asong is a seasoned principal hydroclimate scientist with over 15 years of academic and professional experience in meteorology, climate change, hydrology, and water resources modeling. His background experience includes the areas of hydrometeorological forecasting, hydrological and climate change modeling, and water resources management. His practice includes integrating risks of weather and hydroclimate into the location, design, construction, and operation of key cross-sectoral northern infrastructure and resource planning. He is excellent at tailoring outputs of weather forecasting systems and climate models for critical and strategic local-scale adaptation planning efforts in data-sparse cold regions. His perspective lies in the thoughtful integration of science in solving challenging climate and water resources security problems of any space and time scales. He has led a range of hydrology and water resources modelling projects, and environmental impact assessments for ...

David T Williams, PhD, PE, PH, CFM, CPESC, F.ASCE, D.WRE DTW and Associates, Engineers, LLC

California
Civil Engineering, Hydrology - floodplain flooding, hydrology, river hydraulics, stream bank protection, stream restoration, fluvial geomorphology, levees, erosion control, stream bank failure, erosion control plans, best management practices, FEMA floodplain studies
Dr. David Williams, PE (CO, AZ, CA, LA, MO, NM, TX, HI, MS, OR, WA) has over 45 years of experience in the water resources industry and is known for his contributions to the industry. He is also a recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries. Dr. Williams previously served as a two time President of the International Erosion Control Association (IECA). He has served as chair of the American Society of Civil Engineers (ASCE) Technical Committees on Sedimentation, Computational Hydraulics, River Restoration, and Risk, Uncertainty and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications) and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. ...

Gerald Blackler, Ph.D, P.E., D.WRE

Littleton, Colorado
Hydrology, Civil Engineering - Water Resources, Hydrology, Hydraulics, Floodplain, Flood Forensics, Hydrologist, 2-D and 3-D Hydraulic Modeling, Transportation Drainage, Roadway Drainage, Rainfall, Runoff, Design Storms, Sedimentation, Sediment Transport, Stormwater, Urban Hydrology, Urban Flooding, Construction.
Dr. Blackler is an expert in hydrology, hydraulics, the engineering of drainage systems, floodplain management, transportation hydraulics, and water resources. He routinely produces technical evidence that is hard to dispute and easy to understand. Dr. Blackler has an innate ability to produce convincing and accurate information in a format that is easy to digest, such as video files, and images that explain the complicated physical interactions of hydraulics. Some of his past litigation work produced evidence that was not disputed by opposing experts. Dr. Blackler's professional accomplishments include multiple peer reviewed publications, board certification in water resources, professional engineering licenses in multiple states, and lead instructor roles for professional development courses. He has worked as a consulting engineer, an engineer for the federal government, and as a soldier. He is a honorably discharged veteran of foreign wars from combat tours for OIF a...

Mark J. Vanarelli, PhD, PE, PG, BCEE, DWRE, F.ASCE COVAN Engineering LLC

Westminster, Colorado
Civil Engineering, Mining - Hydrogeology, Hydrology, Geological Engineering, Mining Engineering, Tunnel Engineering, Geotechnical Engineering, Groundwater, Geology, Water Resources Engineering, Remediation Design, Trenchless Technology, Site Investigations.
Licensed Professional Engineer (PE - Civil) (1996-Pres.) – CO, PA, and NJ; USA Licensed Professional Geologist (PG) (1992-Pres.) – PA, KY, IL, and WY; USA Board Certified Environmental Engineer (BCEE, 2002) – American Academy of Environmental Engineers & Scientists (AAEES) Diplomate, Water Resources Engineer (D. WRE, 2009) – American Academy of Water Resources Engineers (ASCE affiliate) OSHA HAZWOPER 40-hour operator and 8-hour supervisor level training certification MSHA Surface Mining Certification (renewed 2016) American Society of Civil Engineers (ASCE) – Fellow (#342191) Society of Mining, Metallurgical and Exploration (SME-AIME) - Member American Academy of Environmental Engineers & Scientists (AAEES) - Member Published Papers: • Hamed M. Jassim, Mark J. Vanarelli, Faris R. Ahmed, Varoujan K. Sissakian and Hassan O. Omer, 2019. Portal Landslide Analysis of the New Haibat Sultan Tunnels in Koya, Kurdistan Region, Iraq, 14th International Conference Underground Const...

David T Williams, PhD, PE, PH, CFM, CPESC, F.ASCE, D.WRE DTW and Associates, Engineers, LLC

Commerce City, Colorado
Civil Engineering, Hydrology - floodplain flooding, hydrology, river hydraulics, stream bank protection, stream restoration, fluvial geomorphology, levees, erosion control, stream bank failure, erosion control plans, best management practices, FEMA floodplain studies
Dr. David Williams, PE (CO, AZ, CA, LA, MO, NM, TX, HI, MS, OR, WA) has over 45 years of experience in the water resources industry and is known for his contributions to the industry. He is also a recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries. Dr. Williams previously served as a two time President of the International Erosion Control Association (IECA). He has served as chair of the American Society of Civil Engineers (ASCE) Technical Committees on Sedimentation, Computational Hydraulics, River Restoration, and Risk, Uncertainty and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications) and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. ...

Christopher R Hanstad, P.E., CFM Hanstad Engineering Services

Champaign, Illinois
Civil Engineering - Floodway Violations, Floodplain Modeling, Flood Damage and Loss Assessment, Hydrology, Hydraulics, FEMA Floodplain Revisions, Drainage
Mr. Chris Hanstad has over 10 years of focused experience in floodplain analysis and evaluation of projects for compliance with the National Flood Insurance Program (NFIP) regulations. As a Licensed Professional Engineer (IL, IN, and WI) and Certified Floodplain Manager he has led the Illinois Letter of Map Revision (LOMR) program for 8 years from its inception to make determination decisions for floodplain revision requests. Based on rigorous floodplain modeling technical standard and NFIP regulation compliance, Mr. Hanstad has personally made determination decisions for hundreds of LOMR applications which result in revisions to FEMA floodplain maps. Mr. Hanstad specializes in evaluating the flood risk impact of projects built in the floodplain on adjacent properties. He has made 7 floodway violation recommendations to FEMA and has provided litigation support for flooding resulting from a floodway violation. With in-depth knowledge of NFIP regulations and specialized technical...

James Berndt, LPG August Mack Environmental

Indianapolis, Indiana
Environmental, Hydrology - hydrogeology, groundwater, groundwater modeling, pollution, contamination, dry cleaning, environmental investigation, remediation, wells, modeling, contaminated soil, VOC contamination, drinking water, risk assessment, remedial alternatives, reasonable and necessary, subsurface investigation
James Berndt, LPG is the Manager of Corporate Technical Services and a Licensed Professional Geologist in the Corporate office of August Mack Environmental, Inc. with more than 30 years of experience in the environmental industry. During his career, Mr. Berndt has managed hundreds of environmental projects for clients across the United States, in Europe, and South America, involving heavy metals, petroleum and chlorinated solvents and other volatile organic compounds including TCE, PCE and associated degradation products. His work commonly involved delineating the nature and extent of impacts, developing risk-based cleanup criteria and designing and implemented corrective actions. In addition to consulting work, Mr. Berndt has taught hydrogeology as a member of the adjunct faculty of the University of Indianapolis. His primary areas of expertise include site investigation, remediation, hydrogeology, groundwater flow and chemical transport modeling, and predictive cost modeling for e...

Robert C Eitel, PE Landesign, Inc.

Bowie, Maryland
Civil Engineering, Hydrology - Flooding, Engineering Standard of Care, Land Development Engineering
Board Certified Diplomate of Forensic Engineering through the National Academy of Forensic Engineers

Steven L. Bernstein, P. E., F. ASCE SLB Group, LLC

Norton, Massachusetts
Civil Engineering, Construction - Flooding, Drainage, French Drains, Storm Water, Hydrology, Water Supply, Sewers, Septic Systems, Pavement analysis, Paving, Grading, Basement flooding. (I do not do Land Surveying) (Note-not a Structural Engineer)
Registered Professional Engineer experienced with design, permits and construction administration of drainage, sewer and water supply systems for private residential; commercial, industrial and institutional properties. Provides expert opinion/witness of drainage and/or flooding issues affecting upstream or downstream properties as well as other utilities such as water supply, sewer/septic systems and/or other civil/site issues such as pavement and grading. Has taught at Wentworth Institute, Boston. Has authored numerous published articles and have presented at several engineering conferences on Civil Engineering topics. Note: I do Not Do Land Surveying.

Douglas B Blatchford, PE, PH, CEM, CFM Southwest Hydrology & Hydraulics, LLC

Boulder City, Nevada
Hydrology, Engineering - Water Resources focused on: Flooding, Floodplain Management, Drainage, Surface Water Hydrology, Hydraulic Structures, Grading, Erosion, Permitting,
Mr. Douglas B. Blatchford, PE (AZ, CA, CO, NM, NV, TX, UT) has over 38 years of experience as a water resource professional. His experience includes dam safety, design and construction, energy, geographic information systems, groundwater hydrology, remote sensing, river systems, and surface water hydrology, in support of his expert witness practice focus area in water resources (flooding, floodplain management, drainage, hydrology, hydraulic structures, grading, erosion, and permitting). Mr. Blatchford served the United States Government (Interior, Reclamation) as the River Operations Manager on the Lower Colorado River, involved with water deliveries to Phoenix, Tucson, Los Angeles, San Diego, and irrigators in southern California, southern Arizona, and Mexico. He actively served west wide in Reclamation’s dam safety program, and interfaced extensively with the USGS, the USACE, NOAA, the Colorado River Basin Forecast Center (CBRFC), Mexico, and many irrigators, local and state agen...

Alicia C Wasula, PhD, CCM Shade Tree Meteorology, LLC

Cropseyville, New York
Meteorology, Hydrology - Weather Expert Testimony, Forensic Meteorology, Severe Weather, Weather Radar, Severe Thunderstorms, Tornadoes, Flooding, Weather Preparedness, Slip & Fall, Weather Related Accidents, Weather Reconstruction
Dr. Alicia Wasula, President of Shade Tree Meteorology, earned her Bachelor, Master and Doctoral Degrees in Meteorology at the University at Albany and recently earned her CCM as well. She developed a passion for severe weather and traveled to the Great Plains to study it in the field. She spent a summer in Norman, Oklahoma at the National Storm Prediction Center, doing research with Bob Johns, a prominent severe weather scientist. In graduate school, Alicia developed a skill for making difficult meteorological concepts understandable in the classroom. Alicia taught a variety of courses from upper level science to entry level courses for non science majors, earning praise for her communication style. During her post-graduate studies, Alicia continued to work closely with operational forecasters on research projects at the Albany National Weather Service Office and the the Storm Prediction Center on both her Master and Doctoral research projects. Alicia continues her passion for ...

Chuck Dutill, PE, DFE Heritage Technical Services, Inc.

West Chester, Pennsylvania
Environmental, Engineering - Hydrology, Sewer, Water, Flooding, Groundwater, Hydrogeology, Drainage, Wastewater Treatment, Septic Systems, Utility, Sewer Systems, Sanitary Sewage, Mold, Stormwater Management, Hydraulics, Hazardous Waste, Drinking Water, Waste Management, Erosion, Soils, Pumping, Water Quality, Air Quality
Nationwide experience as hydrologist, environmental engineer, and civil engineer, including for construction, operations, design, inspections, floodplains, contamination, toxicity, hazardous waste, spills, grading, remediation, pollution, sinkholes, health and safety, pumping, modeling, odors, soils, dams, regulations, combined sewers, overflows, aquifers, water distribution, water treatment, hydraulic fracturing, Standard of Care, sedimentation, hydroplaning, wetlands, landfills, monitoring, infiltration/inflow, and metering. Forensic cases for Mr. Dutill have comprised federal and state courts, and include damages from approximately $25,000 to approaching $1 billion, with most between $100,000 to $5M. 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 ...

Michael Sheleheda, P.E. Civil & Environmental Consultants, Inc.

Monroeville, Pennsylvania
Civil Engineering, Geotechnical Engineering - Stormwater, Erosion and Sediment Control, Hydrology, Landslides and Slope Stability, Foundations, Settlement, Retaining Walls, Geohazards, Pavement Evaluation and Remediation, Earthwork, Construction and Materials Testing, and Americans with Disabilities Act (ADA) Accessibility.
Mr. Sheleheda specializes in geotechnical and civil engineering. His experience includes providing geotechnical engineering design/expertise for all aspects of land development and construction. Projects have included establishing procedures for subsurface explorations, boring layout, soil sampling, and laboratory testing programs. Michael has authored geotechnical reports regarding deep, shallow, and specialty foundation construction for projects in the real estate, natural gas, manufacturing, mining and public client sectors. Also, he has investigated and provided remedial recommendations for landslides, carbonaceous (expansive) shale, retaining walls, karst, geohazards, and mine grouting/subsidence. His responsibilities have included preparing bid packages, authoring specifications, and construction level drawings, as well as preparing expert reports for the legal and insurance industries. In addition, Michael has experience in the preparation of erosion and sediment control pla...

Gerald Blackler, Ph.D, P.E., D.WRE

Texas
Hydrology, Civil Engineering - Water Resources, Hydrology, Hydraulics, Floodplain, Flood Forensics, Hydrologist, 2-D and 3-D Hydraulic Modeling, Transportation Drainage, Roadway Drainage, Rainfall, Runoff, Design Storms, Sedimentation, Sediment Transport, Stormwater, Urban Hydrology, Urban Flooding, Construction.
Dr. Blackler is an expert in hydrology, hydraulics, the engineering of drainage systems, floodplain management, transportation hydraulics, and water resources. He routinely produces technical evidence that is hard to dispute and easy to understand. Dr. Blackler has an innate ability to produce convincing and accurate information in a format that is easy to digest, such as video files, and images that explain the complicated physical interactions of hydraulics. Some of his past litigation work produced evidence that was not disputed by opposing experts. Dr. Blackler's professional accomplishments include multiple peer reviewed publications, board certification in water resources, professional engineering licenses in multiple states, and lead instructor roles for professional development courses. He has worked as a consulting engineer, an engineer for the federal government, and as a soldier. He is a honorably discharged veteran of foreign wars from combat tours for OIF a...

L. David Givler, MSCE, PE Givler Engineering, Inc.

San Antonio, Texas
Civil Engineering, Hydrology - flood, drainage, storm, water, floodplain, dam, hydraulics, FEMA, municipal, stormwater regulation, flood plain analysis, dam construction and maintenance, road construction and repair, water resources, runoff, flow, pipe, street, utility
Registration Professional Engineer, 1990 (PA No. PE 040565 E), 1993 (TX No. 73842) Experience Experienced in hydrology and hydraulics. Performed numerous flood studies for rivers and creeks, bridge hydraulic studies, reservoir analyses, drainage designs and storm water pollution prevention plan designs. Experienced with dams. Designed new dams, performed inspections, analyzed seepage conditions, developed rehabilitation programs, developed Emergency Action Plans, developed foundation-grouting programs and constructed and operated physical models. Experienced city engineer, having served in multiple cities. Designed public street, drainage, and utility improvements. Reviewed subdivision plats, proposed utility modifications and ordinances. Experienced in site development and subdivisions. Designed roads, utilities, lot layouts, grading plans, detention ponds and drainage systems for residential and commercial subdivisions. Experienced in public presentations and teachin...

David T Williams, PhD, PE, PH, CFM, CPESC, F.ASCE, D.WRE DTW and Associates, Engineers, LLC

Texas
Civil Engineering, Hydrology - floodplain flooding, hydrology, river hydraulics, stream bank protection, stream restoration, fluvial geomorphology, levees, erosion control, stream bank failure, erosion control plans, best management practices, FEMA floodplain studies
Dr. David Williams, PE (CO, AZ, CA, LA, MO, NM, TX, HI, MS, OR, WA) has over 45 years of experience in the water resources industry and is known for his contributions to the industry. He is also a recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries. Dr. Williams previously served as a two time President of the International Erosion Control Association (IECA). He has served as chair of the American Society of Civil Engineers (ASCE) Technical Committees on Sedimentation, Computational Hydraulics, River Restoration, and Risk, Uncertainty and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications) and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. ...

Michael F Myers, PE, CFM 30 Scale, LLC

Palmyra, Virginia
Civil Engineering, Hydrology - Drainage, Hydrology, Hydraulics, Floodplain Mapping, Storm Sewer, Stormwater Management, Flooding, Storm Drainage, FEMA, Grading, Erosion and Sediment Control, Runoff
Mr. Myers has over 25 years of experience as a civil engineer in Virginia as the engineer-of-record on projects involving hydrologic/hydraulic analysis for land development projects. A Professional Engineer in Virginia since 1999 and a Certified Floodplain Manager since 2012, Mr. Myers is experienced in commercial and residential stormwater management design, floodplain management, erosion and sediment control design, and assessing drainage issues through field investigation and written report.
You can also find Hydrology Expert Witnesses in:
Alberta, Indiana, Colorado, Nevada, Maryland, Texas, Virginia, and New York