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Erosion Sediment Control Expert Witnesses

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James A. Jacobs, PG, CHG, CPG
229 Tewksbury Ave.
Point Richmond California 94801
USA
phone: 510-590-1098
fax: 510-232-2823
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James A. Jacobs, PG, CHG, CPG, has over 30 years of experience as a Geologist / Hydrogeologist and licensed contractor focused on answering geologic, environmental impairment, and forensic questions. He is a certified hydrogeologist in California and Washington and a Professional Geologist in California and several other states.

A Fulbright Senior Scholar with 4 awards in environmental engineering and science, his projects relate to collecting, describing, and analyzing Soil, Rock, Groundwater, Vapor, and Stormwater samples, summarizing the data and creating useful technical information and cost recovery statements for decision makers or settlements. His other projects relate to peer review and contractor evaluation projects.

Mr. Jacobs has provided litigation services in the investigation and analysis of cases involving contamination by hydrocarbon and solvent spills and leaks, erosion, flooding, and related issues. He has provided testimony assisting with many settlement conferences. Mr. Jacobs is qualified to testify in municipal, state, and Federal courts.

Litigation Support and Expert Witness:
  • Perform litigation and technical support for various environmental and engineering cases from evaluating remediation history to well damage to erosion control
  • Estimate reasonable and necessary remedial costs for settlement conferences
  • Serve as an objective peer reviewer
  • Expert witness testimony on environmental cases
Since 2002, Mr. Jacobs has been an elected director of two public agencies, a local sewer district, and a community services district. As such he is interested in I&I issues and sewer gas and volatile contaminant vapor intrusion into indoor air spaces via ineffective vapor seals on fixtures or dry P-traps in buildings. He performs cost allocations for environmental litigation, and also provides oil and gas production verification.

View James Jacobs' Consulting Profile.
James A. Jacobs, et. al (eds.)
Put together by a team of scientists, engineers, regulators, and lawyers, the Chromium(VI) Handbook consolidates the latest literature on this topic. The broad scope of this book fills the need for a comprehensive resource on chromium(VI), improving the knowledge of this contaminant at a time when the extent and degree of the problem is still being assessed. It addresses naturally occurring and anthropogenic sources, geology and geochemistry, toxicity, treatment, regulatory issues and legal cases, and recommendations.
James A. Jacobs, et al
Provides the tools needed to analyze and solve acid drainage problem. Featuring contributions from leading experts in science and engineering, this book explores the complex biogeochemistry of acid mine drainage, rock drainage, and acid sulfate soils. It describes how to predict, prevent, and remediate the environmental impact of acid drainage and the oxidation of sulfides, offering the latest sampling and analytical methods. Moreover, readers will discover new approaches for recovering valuable resources from acid mine drainage, including bioleaching.
James A. Jacobs, et al
The definitive guide to petroleum hydrocarbon fuel spill and leak causes, prevention, response, and cost recovery.It highlights the complex nature of petroleum hydrocarbon fuel extraction methods, the unintended consequences when disasters occur, spill behavior, and environmental impact mitigation. This practical resource discusses engineering techniques; long-term biological and environmental effects; dealing with insurance claims, litigation, and legislation in overlapping jurisdictions; and much more.
James A. Jacobs, et. al (eds.)
Written by an expert team of scientists, engineers, and toxicologists, MTBE: Effects on Soil and Ground-Water Resources provides complete in-depth coverage of the assessment and potential remediation strategies of methyl tertiary-butyl ether (MTBE).
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Donald H. Godi, FASLA, PLA, RCA #444, TRAQ
Consulting Arborist, Licensed Landscape Architect
7805 West Hampden Avenue
Lakewood CO 80227
USA
phone: 303-989-2853
fax: 303-989-2854
Landscape Architects and Arborists Since 1970, Donald H. Godi & Associates, Inc. has been providing expedient service with excellent technology. Their services include landscape evaluations and plant appraisals, standards of the industry determinations, and litigation support for public and private clients throughout the Rocky Mountain Region and beyond.

Donald H. Godi, FASLA, PLA, RCA #444, Consulting Arborist, Licensed Landscape Architect, and firm Principal, has chosen to apply the unique talents acquired through training and experience to a concentration on landscape evaluations, tree and landscape appraisals and litigation support services. Skills developed over decades of design and construction implementation, horticulture applications, and the training acquired through the American Society of Consulting Arborists (ASCA) consulting academy have combined to create unparalleled abilities in evaluation support as a consulting arborist. As a licensed landscape architect in Colorado (#6) and multiple states, and a Registered Consulting Arborist (#444), Don Godi is the only such consultant in Colorado and 16 surrounding states.

Mr. Godi provides Expert Witness and Litigation Services to attorneys for both Plaintiffs and Defendants. He is available for:
  • Dispute resolution
  • Cost Estimates
  • Work Standards
  • Plant Evaluations / Appraisals
  • Plan / Specification Review
  • Forensic Data Analysis
View Donald Godi's Consulting Profile.
Donald H. Godi, FASLA, RCA, et al
A new reference manual useful to students and professionals in the Green Industries. It is full of useful bits of reference material in 11 sections - a handy-sized 300 page manual with data useful in design, construction and training within the Green Industries.
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James R. Drebelbis, AIA, PE
2909 Cole Ave
Suite 100
Dallas TX 75204
USA
phone: 214-468-8118
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Drebelbis Engineering is an Architectural and Engineering firm specializing in Forensic Engineering. Their combined background in architecture, engineering, and business make Drebelbis Engineering uniquely qualified to address the complexities found in forensic engineering assignments.

A Dallas-based company founded in 1996, their focus is structural, architectural and civil engineering as applied to buildings and site systems. They bring technical engineering knowledge, testimony, and remedy when construction fails to perform and when construction processes derail.

Principal, James R. Drebelbis, AIA, PE, is an Architect and Structural Engineer with over 40 years of experience in all phases of building construction and performance, project management, and producing documents for building construction (drawings, specifications, change orders).

Litigation Support - Mr. Drebelbis specializes in Forensic Engineering for attorneys and insurance companies. His understanding of building types and construction systems includes site construction and earth retaining structures as well as residential, commercial, manufacturing, and institutional buildings.

Mr. Drebelbis is retained for Cause and Origin of Structural Failures and disputes about construction performance that often emphasize the obvious (leaks, cracks, collapses). His expertise is available to attorneys representing both Plaintiff and Defendant. Services include engineering investigation, documentation, testimony, and preparation of Certificates of Merit.

Education/Licenses: - BS Arch. Engineering, MBA, Professional Engineer (Texas, Alabama, Kansas, Oklahoma, Louisiana, New Mexico), Architect (Texas)

Areas of Technical Experience and Expertise:
  • Construction Technology
  • Building Codes
  • Forensic Engineering
  • Fire, Weather, Disaster Related Damage
  • Roofing & Waterproofing Systems
  • Water and Moisture Intrusion
  • Stair Construction
  • Performance of Building Materials
  • Retaining Structures
  • Application of Building Materials
  • Selection of Building Materials
  • Structural Engineering
  • Site and Building Drainage
  • Foundation Design
  • Soil Behavior
  • Concrete Workmanship and Design
  • Contract Documents
  • Professional Ethics
  • Slip, Trip, Fall
  • Corrective Construction
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    Design, Analysis, Expert, Trial, Forensic Witness
    Counties of Westchester, Rockland, Queens, Putnam
    Dutchess, Orange, Ulster, Nassau, Suffolk, Bronx, Statin Island
    Richmond & Brooklyn / Kings County Long Island / NY City / Manhattan / White Plains
    Shrub Oak NY 10588
    USA
    phone: 914-245-6320
    fax: 914-245-6335
    Vincent A. Ettari, P.E., P.C. specializes in many fields of Civil, Structural, Site, Coastal, Safety & Environmental Engineering, including the Design & Analysis of:

  • Structures, Buildings, Houses, Dwellings
  • Foundations, Footings, Elevators, Retaining Walls, Dams
  • Development Plan & Plats for Sites, Properties, and Residences
  • Underground & Subsurface Chamber / Chambers
  • Scaffold, Scaffolds, Scaffolding
  • Site Plans & Subdivisions: Industrial, Commercial, Residential
  • Roads, Roadways, Ramps, Walks, & Man Hole Cover / Covers
  • Sidewalks, Walkways, Paths & Pathways
  • Lighting: Lamps, Lights, Lamp Poles, Light Levels
  • Luminaries & Illumination (Specifications)
  • Rock Cuts & Blasting (Topography, Specification)
  • Soil Slopes / Samples / Mechanics / Geotechnical Engineers
  • Sanitary Facilities, Septic Systems (Board of Health Septics Approval)
  • BOHA / DEP Approvals
  • Water, Drains, Drainage, Sewer & Sewage Lines & Mains
  • Culvert / Culverts, Manholes (Man Holes) & Catchbasins / Catch Basins
  • Inspection, Supervision, and Certification of Construction
  • House Inspector & Inspections
  • Road, Roadway, Walk & Sidewalk Premises Liability (e.g., Steep Slope)
  • Walkway, Path, Ramp & Pathway Premise Liability (e.g., Steep Grade)
  • Coefficient of Friction / Slip & Fall (Snowy & Icy Conditions)
  • Vertical Discontinuity / Discontinuities / Trip & Falls
  • Small Ports / Port, Marinas / Marina, Marine Dredging
  • Levees, Jetties, Dolphins, Piers, Sea & Flood Walls
  • Wharves, Breakwaters, Bulkheads, Weirs, & Revetments
  • Groins, Dikes and Waterfront Structures
  • Drainage Basin Analysis, Rainfall, Floods & Flood Plain / Plains
  • Flooding Controls & Control Devices
  • Storm Water Runoff (10, 25, 50 & 100 Year Storms)
  • Pressure & Pressures: Wind, Wave / Waves, Ice, Snow
  • Rain Fall Run Off & Storm Water Pollution Treatment
  • Excavation, Grading, Fills & Filling Operations (Swales, Berms, Silt Fence)
  • Erosion Control, Sediment Barriers, Sedimentation / Catch Basins (Hay Bales)
  • Pumps and Pump System Line & Main
  • Slope, Dam, Levee, Jetty, Dolphin, Pier, Wharf & Breakwater Collapse
  • Bulkhead, Weir, Revetment, Groin, Dike, Footing & Foundation Failures
  • Failure of Fire Containment Wall, Elevator or Water Front Structure
  • Tenement House Façade Collapses
  • Code History of Existing Multiple / Multi-Family Dwelling / Building
  • Application of Municipal Building, Fire & Property Maintenance Codes
  • City, Town & Village Zoning, Planning, Steep Slopes & Grades, Wetland & Wetlands Ordinances
  • Testimony at Board Meetings as a Design Forensics Engineer
  • 3/23/2009 · Engineering
    In many places of NYS, public water supply systems are available. If your site is situated in such a location, then the lots which will result from your contemplated subdivision will be required to draw their water supply from the municipal water system

    3/5/2009 · Construction
    As you enter into a contract to buy a piece of commercial or industrial property, you should always keep in mind that your new town and county have rules which you must abide by. With regard to the exterior areas of your premises, there are rules concerning your septic system, the maintenance of your building, the addition onto your structure, etc

    12/28/2006 · Construction
    In developing a vacant piece of land, steep slopes are often an issue. And, the more prevalent the steep slopes are on a site, the greater the likelihood that retaining walls will be part of the Approved Site Plan. Let us consider three municipalities which regulate the final allowable slopes for land which is filled, cut, or graded

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    Ray G. Helmer, P.E.
    Principal
    9314 Bankside Drive
    Houston TX 77031-1713
    USA
    phone: 713-777-7611
    fax: 713-774-6881
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    Ray Helmer is a Licensed Professional Engineer in the states of Texas, Oklahoma, Alabama, Ohio and Kansas. He is available to perform Expert Witness Services in all 50 states.

    Areas of Expertise:
  • Civil, Structural and Forensic engineering
  • Highway engineering, roadways, sight distance
  • Concrete and Asphalt Pavements
  • Highway / Street lighting
  • Traffic engineering, signals, signs, striping
  • Traffic noise studies
  • Accidents – automobile, train, motorcycle, pedestrian
  • Traffic accident testimony involving city / County / State DOTS
  • Hydraulics, hydrology, drainage, flooding
  • Sanitary engineering, sewers, overflows
  • Water treatment, distribution, pumping
  • Water disinfection byproducts (DBPs)
  • Wastewater treatment plants, lift stations
  • Soil expansion, contraction, settlement
  • Foundation failure, structural damage
  • Plumbing, leaks, water intrusion
  • Airports, FAA standards, runways, taxi ways, ramps
  • Bridges, buildings, corrosion, concrete cracking
  • Construction defects, fraud, accidents, delays, estimates
  • Hydroplaning is frequently alleged to be a cause of vehicular traffic accidents. This is because many persons, even law enforcement personnel, may not know the technical definition and criteria for hydroplaning.

    Many vehicular accidents happen because drivers are in too much of a hurry or they are distracted by any number of things. They just are not paying close enough attention to their surroundings. Traffic accidents at signalized intersections are common where both drivers claim the other driver is at fault.

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    Chuck Dutill, PE
    Expert Witness | Principal Consultant
    1240 West Chester Pike, Suite 213
    West Chester PA 19382
    USA
    phone: 610-701-5650
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    For over 35 years, Chuck Dutill, P.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 25% of his professional time providing expert witness services nationwide for over 35 years. Approximately 50% of his expert witness services have been for defendants and about 50% also for plaintiffs.

    He has issued more than 105 expert reports, been deposed approximately 30 to 35 times, and testified in court (including jury and non-jury trials) approximately 25 to 30 times. 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:
    • Hydrology
    • Stormwater Management
    • Flooding
    • Drainage
    • Runoff
    • Sewer Systems
    • Sanitary Sewage
    • Wastewater Treatment
    • Septic Systems
    • Backups
    • Overflows
    • Surface Water
    • Groundwater
    • Hydrogeology
    • Erosion
    • Grading
    • Hydraulics
    • Floodplains
  • Piping Systems
  • Wells
  • Mold
  • Soils
  • Air Quality
  • Regulations
  • Combined Sewers
  • Detention
  • Maintenance
  • Inspections
  • Dams
  • Sinkholes
  • Hazardous Waste
  • Aquifers
  • Drinking Water
  • Hydraulic Fracturing
  • Health and Safety
  • Standard of Care
  • Toxicity
  • Contamination
  • Spills
  • Pollution
  • Remediation
  • Modeling
  • Storage
  • Sedimentation
  • Hydroplaning
  • Odors
  • Waste Management
  • Wetlands
  • Landfills
  • Water Quality
  • Monitoring
  • Storm Sewers
  • Infiltration/Inflow
  • CV Available Upon Request

    View Mr. Dutill's Consulting Profile.
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    JML Services
    Jeffrey Mark Lange, CPEA
    PO Box 10970
    Tempe AZ 85284
    USA
    phone: 480-940-7245
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    Jeffrey Mark Lange, CPEA, is a practicing Safety Professional with expertise in Construction Safety, Premises Safety and Liability, and Construction Defect Claims.

    Mr. Lange served as Safety and Risk Manager for PCL Construction for 5 years and Kitchell for 24 years. His duties included managing professional staff, responsibility for public safety, premise liability, job site safety, building safety, environmental compliance and compliance with all applicable local, state, federal regulations and codes throughout the Mountain States.

    Litigation Support - Mr. Lange has been a practicing Expert Witness for 32 years. He has participated in more than 1,000 depositions and has testified in court 68 times in 6 states, Arizona, Nevada, Utah, Colorado, Idaho, and New Mexico. Mr. Lange has extensive experience in depositions for litigation involving premise liability, safety for both personal injury, property damage and construction defects, underground utility installation, mines falls from elevation, etc.

    Construction Safety Expertise:
    • Construction Industry Practices
    • Building Code Requirements
    • Defective Construction
    • Construction Contracts
    • Contract Language
    • Construction Change Orders
    • Building Premises Maintenance
    • Insurance Provisions
  • Fall Protection
  • Trenching
  • Scaffolding
  • Forklifts
  • Stairways and Ladders
  • Work Zone Safety
  • Walkway Illumination
  • OSHA, ANSI, IBC, UBC, NFPA, IEBC, IBMC
  • View Jeffrey M. Lange's Consulting Profile.
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    Rudolph P. Frizzi, PE, GE, D.GE
    Geotechnical Engineering Consultant
    555 Montgomery Street, Suite 1300
    San Francisco CA USA
    phone: 201-398-4613
    Rudolph-Frizzi-Geotechnical-Engineering-Expert-Photo.jpg
    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.
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    Philip T. Tringale, PhD, PE
    Environmental Engineering Consultant
    555 Montgomery Street, Suite 1300
    San Francisco CA USA
    phone: 510-874-7011
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    Philip T. Tringale, PhD, PE is a registered Professional Civil Engineer with over 25 years of Environmental Consulting experience. His site and redevelopment projects include commercial and industrial facilities, landfills, and cases requiring technical support for litigation.

    Dr. Tringale has directed numerous site assessments and remediation programs involving soil and groundwater contaminated primarily by organic solvents, metals, and petroleum products. He has particular expertise in site characterization and in the use of in-situ testing to evaluate soil properties. Dr. Tringale has provided final design for remedial actions that involve excavation, containment, bioremediation, vacuum extraction, monitoring, and groundwater treatment.

    Dr. Tringale has been providing litigation support services to the legal industry for over 20 years. He is available to attorneys for Plaintiff and Defense. Dr. Tringale has been retained approximately 15 times and has provided expert testimony in support of counsel for cases involving:
    • National Contingency Plan Compliance
    • Identification of Contaminant Sources
    • Magnitude and Extent of Contamination
    • Remedial Cost Estimates
    • Allocation of Cost and Responsibility
    View Philip Tringale's Consulting Profile.
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    Shlomo Orr, Ph.D., P.Eng
    Hydrology / Water Resources Consultant
    5900 W 25th Ave.
    Kennewick WA 99338
    USA
    phone: 509-736-3111
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    Shlomo Orr Hydrology Water Resources Expert PhotoPresident and CEO, Shlomo Orr, Ph.D., P.Eng, has over 33 years of extensive consulting, research, and project management experience in the field of Hydrogeology and Water Resources. He earned a PhD in Hydrology and Water Resources with a minor in Soil and Water Sciences, and BSc and MSc in Civil Engineering.

    Dr. Orr's background includes modeling, planning, and controlling complex subsurface flow and transport phenomena. He has a broad background in conceptual and computational-numerical modeling of fluid flow and solute transport in saturated and unsaturated porous and fractured formations, including stochastic models that account for uncertainties and provide the basis for risk assessment.

    Dr. Orr has taught undergraduate and graduate courses in Groundwater Hydrology, Hydraulic Engineering, and Geostatistics, and advised MS and PhD students (as an Assistant Professor in Civil Engineering, and thereafter). He also taught a course on fluid dynamics in heterogeneous heaps for the Society of Mining Engineering (SME). He has solved some of the most complex problems in his field; has innovated substantially, and has published his advanced works on modeling and optimization in top journals, while serving as a peer reviewer, himself. His toolbox spans from simple analytical models to most detailed, complex, numerical, stochastic 3D models, as well as advanced machine learning models. Dr. Orr has been a reviewer of major books and top journals in hydrology and water resources, and has served in a special committee of SPE (Society of Petroleum Engineers) on Advanced Analytics. He was advising top scientists at the University of Saskatchewan on approaches to Integrated Nuclear Environmental Research and Training (INERT), and he has been serving as a Technical Advisor for SoilVision Systems (an advanced geo-software company). He has done breakthrough modeling work and evaluations of risk assessment models for the NRC (Nuclear Regulatory Commission).

    Litigation Support - Dr. Orr provides expert witness services for cases involving Hydrology, Water Resources, and Environmental Risk. He served as an expert reviewer on advisory boards of the US Army, Air Force, and Navy, on environmental projects. On the other side of the fence, he has conducted major environmental permit applications/investigations for special complex mining operations.

    Dr. Orr's services are available to counsel representing plaintiff and defendant and include site review, written reports, depositions, and trial testimony as needed.

    Areas of Expertise:
  • Hydrogeology & Geohydrology
  • Groundwater Contamination
  • Subsurface Flow & Transport Modeling
  • Aquifer Remediation
  • Soils and vadose zone hydrology
  • Oil and Gas (multiphase flow)
  • Petroleum Hydrocarbons
  • NAPL and DNAPL
  • VOC transport
  • Acid Mine Drainage
  • Seepage
  • Drainage
  • Wellhead Protection
  • Soil Vapor Intrusion
  • Dewatering / Depressurization
  • Landfill Monitoring
  • Geostatistics and stochastic modeling
  • Monte Carlo Simulations
  • Risk-Assessment
  • Geothermal, Fracking, and Waste Injection


  • View Dr. Orr's Consulting Profile.
    6/26/2017 · Hydrology
    This report is the third (and final) report in a series that addresses issues related to hydrologic uncertainty assessment at decommissioning sites. Analyses in the first two reports in this series emphasized the application of relatively simplified models of subsurface flow and transport. Because of their relative computational speed, such simplified models are particularly attractive when the impact of uncertainty in flow and transport needs to be evaluated. These same simplifications, however, have the potential to provide unrepresentative estimates of dose and its uncertainty. Such misrepresentation may have important consequences for decisions based on the dose assessments. The significance of this concern was evaluated by comparing results from uncertainty assessments conducted on a test case using a simplified modeling approach and a more complex/ realistic modeling approach.

    5/9/2017 · Hydrology
    Flow in heaps and dumps is essentially a two-phase flow phenomenon, though for many applications it could be simplified as unsaturated flow. Unlike saturated flow (typical of groundwater flow) where permeability is independent of other hydraulic parameters, unsaturated flow permeability depends on the degree of saturation and/or on capillary pressure. Several recent field studies suggest that flows in heaps and dumps tend to concentrate in preferred pathways, bypassing much of the ore. Different preferential flow phenomena are triggered, promoted, and influenced by different heap structures, by pretreatment, by the composition of the leach solution, and by application rates and schedules. The structure of heaps and dumps is determined and affected by each and every stage of their construction - from blasting to crushing to conveying and stacking of the material.

    5/8/2017 · Hydrology
    In our 1st article (Orr, 2000), we investigated different flow and transport phenomena that could significantly reduce leaching recovery. The combination of such understanding with advanced flow and transport modeling establishes the link between cause and effect, thereby directing operators to optimal design and construction of new heaps. Modeling of flow and transport in heaps could also point to a unique change in application method or rate that would maximize leaching enhancement of an existing heap under existing situation and leaching history. The use of such a model is cost effective in that it can simulate multiple scenarios of alternative leaching enhancement methods. By simulating a large number of irrigation scenarios, such a model can point to optimal and/or most promising alternatives for a particular heap.

    2/8/2017 · Hydrology
    Despite remarkable new developments in stochastic hydrology and adaptations of advanced methods from operations research, stochastic control, and artificial intelligence, solutions of complex real-world problems in hydrogeology have been quite limited. The main reason is the ultimate reliance on first-principle models that lead to complex, distributed-parameter partial differential equations (PDE) on a given scale. While the addition of uncertainty, and hence, stochasticity or randomness has increased insight and highlighted important relationships between uncertainty, reliability, risk, and their effect on the cost function, it has also (a) introduced additional complexity that results in prohibitive computer power even for just a single uncertain/random parameter; and (b) led to the recognition in our inability to assess the full uncertainty even when including all uncertain parameters.

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    John Bornsworth
    Principal
    PO Box 3106
    Port Angeles WA 98362
    USA
    phone: 360-819-3081
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    John Bornsworth, Owner and Consulting Arborist has a decade of progressive experience in the practice and management of Arboriculture, Horticulture, Restoration Ecology, Vegetation Management, Plant Pathology, and Mycology.

    Credentials:
    • Member, American Society of Consulting Arborists
    • International Society of Arboriculture Certified Arborist
    • ISA Certified Municipal Specialist
    • Qualified Tree Risk Assessor
    • WSDA Licensed Commercial Applicator with aquatic, horticultural and right-of-way endorsements
    • WA Dept. of Ecology, Western Washington Wetlands Rating System Certificate
    • Graduate of the rigorous Community Tree Management Institute (CTMI). Hosted by Urban and Community Forestry programs in Oregon and Washington
    Affiliations:
    • Member, Society of Consulting Arborists
    • Member of the International Society of Arborists
    • Member of the Pacific Northwest Chapter of the ISA
    • Member of the Society of Municipal Arborists
    • Member of the Society of Ecological Restoration
    Litigation Support - Mr. Bornsworth provides defensible plant appraisal for legal cases, insurance claims, and asset management. His appraisals methodology is defined by the 9th edition of the Plant Appraisal Guide published by the Council of Tree and Landscape Appraisers. The value derived from this can be used to establish loss and replacement costs.

    Mr. Bornsworth has appraised single trees, improperly pruned trees, and numerous tree losses. He has also worked in multiple Timber Trespass cases and Illegal Logging cases.

    View John Bornsworth's Consulting Profile.
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    Sean Wilson, MS, PG, CEG
    664 W. Broadway
    Glendale CA 91204
    USA
    phone: (818) 539-8408
    fax: (818) 543-4565
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    Sean Wilson, MS, PG, CEG, has over 23 years of experience in performing Geologic and Geotechnical Forensic Engineering investigations. Mr. Wilson currently serves as a Senior Professional Geologist at Shannon & Wilson, Inc. He holds a professional engineering geologist license in California and a professional geologist license in Utah.

    Mr. Wilson has broad experience in numerous industries. He has completed or project managed over a 1,000 forensic evaluations of distressed properties in California, Utah and Oregon for insurance carriers. For the construction industry, Mr. Wilson's work in residential/commercial/public works development projects include trench and drilling exploration, down-hole logging, geotechnical laboratory testing, slope stability analysis, fault trench logging, foundation and keyway observations, fill control, mass grading monitoring. He has also provided planning and environmental impact reports for several cities and counties throughout California.

    Litigation Support - Mr. Wilson provides consultation services to attorneys, judges, arbitrators, insurance companies, and others in the evaluation and remediation of soil related distress to structures, earth movement, seismicity, and other matters related to adverse soil, geologic, or hydrologic conditions. His services are available to counsel representing both Plaintiff and Defendant.

    Areas of Expertise:
    • Forensic Investigations
    • Damage Causation Evaluations
    • Geologic and Geotechnical Investigations
    • Landslide Investigations and Mitigation
    • Geologic Hazard Assessments
    • Environmental Impact Report (EIR) Preparation
    • Environmental Planning
    • Observation and Monitoring of Engineered Grading and Construction Projects
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    James Nelson
    4601 E. Mountain View Road
    Phoenix AZ 85028
    USA
    phone: (916) 801-3962 or (602) 639-0743
    Storm-Water-Consulting-Logo.jpg
    James Nelson Storm Water Expert PhotoJames H. Nelson, PE is a Hydrologist and Civil Engineer with over 35 years of emphasized experience in the water resources field. Since beginning his professional practice in 1975, Mr. Nelson has completed or supervised the completion of over 2,500 relevant projects in the field of Water Resources.

    Prior to founding Storm Water Consulting, Inc., Mr. Nelson was a member of a large multi-disciplinary consulting firm for 27 years, functioning in a variety of roles, including Chief Hydrologist, Water Resources Manager, Principal, Branch Manager and Vice President. He is a Registered Civil Engineer in the States of California, Arizona, Nevada, and Hawaii.

    Mr. Nelson has provided expert witness services in over 20 lawsuits involving Storm Drainage and Flooding, representing plaintiffs and defendants about equally.

    Areas of Expertise:
    • Storm Drainage Master Plans
    • Floodplain Mapping
    • Regulatory Requirements for Flood Hazard Areas
    • Drainage Designs for Streets and Highways
    • Joint-use Flood Control / Recreation and Environmental Enhancement Projects
  • Hydrologic and Hydraulic Studies
  • Environmental Impact Reports
  • Floodplain Assessments
  • Storm Drainage Impact Fee Analyses
  • Flood Control Studies / Designs
  • Selected Litigation Support Cases
    • Heidrick/Schultz v. City of Davis - Increased and recurring flooding of agricultural properties downstream of a recently-constructed, large residential development project and accompanying storm drainage facilities, Yolo County, California. Hydrology consultation and expert witness
    • P&S Metals v. Whitton Corporation, et. Al. - Flooding caused by a downstream landowner’s construction of a CMU wall across the floodway for the North Branch Tropicana Wash, Las Vegas, Nevada. Hydrology consultation and expert witness
    • Moniz v. State of Hawaii - Intensified flooding and destruction of a residence in Waianae, Hawaii caused by upslope grading in State lands. Hydrology consultation and preparation of initial evaluation report
    • Maricopa County v. Allied Concrete. Sand and gravel operation along Agua Fria River near Indian School Road, Phoenix, Arizona. Hydrology consultation and expert witness
    View James Nelson's Consulting Profile.
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    Ted S. Merrill
    General Construction Consultant
    7777 Alvarado Road
    Suite 408A
    La Mesa CA 91942
    USA
    phone: 619-464-3997
    fax: 619-464-8581
    Ted Merrill has 60 years of experience that includes all phases of Construction and Damage Repair. Mr. Merrill has 42 years of experience in Estimating and Reconstruction of buildings damaged by Fire, Wind, Water, Motor Vehicles, Earth Movement and Construction Defects. He has testified as an expert in Municipal, Superior and Federal courts.

    Construction Areas of Expertise: Damage Repair
  • Building / House Repairs
  • Floors & Flooring
  • Cabinets
  • Foundation Movement
  • Construction Contracting
  • Foundation Repair
  • Construction Defects
  • Framing
  • Stair and Stairways
  • Construction Disputes
  • Installation
  • Construction Estimates
  • Molding/Paneling
  • Decks
  • Residential
  • Finish Carpentry
  • Decay and Defects
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    James D. Wamble, PE, RLS
    PE, RLS
    40 Middleton Street
    Nashville TN 37210
    USA
    phone: 615-251-9555
    fax: 615-251-9034
    James-Wamble-Associates-logo.gif
    James D. Wamble, PE, RLS has over 30 years of experience as a Professional Civil Engineer and Registered Land Surveyor. During the course of his career, Mr. Wamble has worked on land planning, land surveying, or civil engineering projects in all counties of the middle and west Tennessee regions, and several counties in east Tennessee.

    Mr. Wamble has offered litigation support services as an expert witness in cases since 1976. In the last four years, he has testified 12 times in 8 lawsuits. These litigation cases include land planning, land surveying, and civil engineering issues. Mr. Wamble has experience with depositions, trials, hearings, and arbitrations.

    Expert Witness Services Include:
    • Research
    • Site Inspections
    • Engineering Analysis
    • Land Surveys
  • Survey and Civil Engineering Drawings
  • Investigation
  • Report Writing
  • Exhibit Preparation
  • Areas of Expertise:

    • Civil Engineering: Design of grading, drainage, utilities, roads, lakes, dams, detention basins, parking lots, shopping centers, subdivisions, apartments, condominiums, planned unit developments, specific plans, industrial parks, mobile home parks, mini warehouses, hotels and office building site plans; flood, drainage, and utility studies; low impact design; financial developability and constructability analysis of proposed developments; preparation of cost estimates; assisting clients in setting project budgets; designing projects to contain cost within determined project budget; construction project management, inspection, administration, and processing of contractors’ pay requests
    • Land Surveying: Topographic, Route, Land, Boundary, Utilities, Aerial ground control, Engineering design, and Construction Surveys
    • Land Planning: Land use/development feasibility analysis, planning and concept design of residential, commercial, industrial and municipal projects; zone change applications; planned unit development and specific plan applications; site selection consultation; and graphic presentations
    View James Wamble's Consulting Profile.