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Septic / Sewer / Sewage Systems Expert Witnesses

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40 Brambledown Road
Wallington SM6 0TF
phone: +442084012873
Geoffrey Beresford Hartwell is a Chartered Engineer who practices as an Arbitrator, Adjudicator and Expert for Determination. Geoffrey is the former Senior Partner of Consulting Mechanical and Electrical Engineers BHA Cromwell House.

A one time Chairman of the Expert Witness Society, Geoffrey Hartwell has experience giving evidence in court (in both civil and criminal matters) and in International Arbitration. He sometimes is retained as a Single Joint Expert or as a Tribunal Expert. His services are offered to both Plaintiff and Defense. Even when retained on behalf of a Client he, like all Experts, has an overriding responsibility to the Court or Tribunal.

After his early career in aerospace and nuclear energy, Geoffrey entered private practice in association with the late Leslie Heap and Gerald Lewis of Heap and Digby, Consulting Engineers, in 1969. While with them he designed water and sewage equipment and also the bascule moving machinery for the Lowestoft Bridge, in Suffolk. He practiced also as Beresford Hartwell and Associates and, in 1971 established a separate office in Wallington, South London.

In parallel with his design career, Geoffrey was first appointed as arbitrator in 1972 and his first foreign arbitration, an ICC appointment in Switzerland, took place later that year. He studied Law to Intermediate level and then transferred to the examinations of the Institute of Arbitrators (now Chartered) of which he became Chairman in 1996-1997 and for whom he taught in various countries on several courses, including the prestigious Diploma in International Commercial Arbitration.

Technical Expertise:
  • Electrical Engineering and Design
  • Mechanical Engineering and Design
  • Instrumentation
  • Automation and Computer Control Systems
  • Maritime and Infrastructure Engineering
  • Process Engineering
  • Solid Waste Handling
  • Communications
  • Manufacturing
  • Computer Cartography
  • Moving Bridges and Lock Gates
  • Construction Project Management
  • Nuclear Energy
  • Water and Waste Water Treatment
  • Arbitration: Geoffrey Hartwell also acts as an arbitrator and adjudicator, as an expert mediator and conciliator, as an expert investigator and assessor for arbitral tribunals, and also as a Special Referee in the High Court of Justice of the Isle of Man. His services have been required in the UK and internationally.

    Dispute Boards: Geoffrey Hartwell has experience both as Member and as Chairman of Dispute Boards?. He has been a member of Dispute Boards, retained from the beginning of a project or, alternatively, appointed on an ad hoc basis when a problem arises, Dispute Adjudication Boards to determine a binding decision, and on Dispute Review Boards to make decisions that are advisory but not binding.

    Adjudication: Similar to arbitration, Mr. Hartwell adjudicates domestic and international disputes which are only temporarily binding unless otherwise agreed upon by the parties.

    View Geoffrey Beresford Hartwell's Consulting Profile.
    12/4/2013 · Mediation
    International Commercial Arbitration, the chosen basis of the annual Willem Vis Moot, is arguably not au fond a process at law. It is quite simply the performance of an agreement between two parties to have a chosen third party hear and determine some difference between them.

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    Bonneau Dickson, PE
    2428 McGee Ave
    Berkeley CA 94703
    phone: 510-845-8625
    fax: 510-845-4606
    Bonneau Dickson, PE, is a Sanitary Engineer with over 35 years of experience in all aspects of studying, designing, and constructing water, wastewater, and stormwater facilities, both in the United States and abroad.

    Mr. Dickson has designed approximately 300 water, wastewater, and stormwater projects. Has been resident engineer or otherwise participated in the construction phase of approximately 20 water and wastewater projects. Mr. Dickson has both project management and general management experience as project manager on approximately 175 projects.

    Forensic Engineering Experience - Mr. Dickson served as forensic technical consultant, expert witness, or claims analyst on more than 100 projects. With his decades of experience, he understands not only the engineering aspects, but also the financial, managerial, political, and personal aspects of legal issues. Mr. Dickson's expert services include succinct reports with explanations of complex engineering matters in layman’s language.

    Areas of Expertise:
    • Sewage Overflows
    • Wastewater Facilities Design
    • Wastewater Facilities Planning
    • Septic Systems
    • Water Facilities Design
  • Water Facilities Planning
  • Standard of Care
  • Stormwater Facilities Design
  • Stormwater Facilities Planning
  • PCE Contamination
  • Education - BS Civil Engineering, GA Tech; MS Sanitary Engineering, GA Tech; MA Sanitary Engineering, Harvard University; Master Of Business Administration, Harvard University

    View Bonneau Dickson's Consulting Profile.
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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
    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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    Gerard A. Macri, PhD
    Forensic Chemist
    27 Willow Pkwy
    New Windsor NY 12553
    phone: 845-742-6967
    fax: 845-561-9291
    Gerard A. Macri, PhD, is a Forensic Chemist with over 40 years of experience. Dr. Macri provides investigations, technical, and scientific analyses and serve as an expert witness in the areas of:
    • Chemical Identification / Characterization of Unknown Materials
    • Chemical Forensic Evidence
    • Chemical Reactions and Products
    • Chemical Fires and Explosions
    • Accidents resulting from Incompatible / Unstable Chemical Mixtures
    • Chemical Overexposure Risks and Assessments
    • Safe Chemical Exposure Limits
    • Safe Use, Handling, and Storage of Flammable and Corrosive Materials and Chemicals
    • Consumer Product Liability
    • Consumer Products Design Defects
    • Investigations of Unsafe Chemical Products
    Litigation Support - Dr. Macri has served as an expert witness for liability claims on behalf of plaintiff / defendant attorneys, as well as insurance companies. His services include expert reports, rebuttal reports, affidavits, and supporting documents. Dr. Macri is available to testify in cases involving:
    • Chemical Fires and Explosions
    • Chemical Accidents Resulting from Incompatible chemical mixtures
    • Chemical Identification of Unknown Substances Causing Slip and Fall Accidents
    • Sampling, Testing, and Chemical Investigations
    • Industrial Chemical Applications
    • Environmental Regulations, Air & Water Emissions, Pollution Control
    • Chemical reactions, precious metal recovery processes
    • Chemical Characterization of Unknown Materials
    • Soil, Wastewater, and Groundwater Contamination
    • Chemical Plant Production and Operation
    • Chemical Forensic Investigations
    • Design defects & chemical accidents resulting from consumer products
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    Ray G. Helmer, P.E.
    9314 Bankside Drive
    Houston TX 77031-1713
    phone: 713-777-7611
    fax: 713-774-6881
    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
    phone: 610-701-5650
    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. About 55% of his expert witness services have been for defendants, with approximately 45% for plaintiffs.

    He has issued more than 95 expert reports, been deposed over part or all of 25 to 30 days, and testified in court (including jury and non-jury trials) over part or all of 25 to 30 days. As indicated in feedback from attorneys on expert witness cases, some of his strengths include diligence, high standards, understandable input, responsiveness, timeliness, thoroughness, oral communications, effective report writing, listening skills, efficiency, professional demeanor, organization, and assistance to counsel.

    • 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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    Lon W. House, PhD, CEM, CSDP
    See Multiple Addresses Below
    AZ, CA USA
    phone: 530-676-8956 (Office) or 530-409-9702 (Cell)
    Lon House Water Energy Expert PhotoLon W. House, PhD, CEM, CSDP, is a Water and Energy Consultant with over 25 years of experience. Dr. House has a Bachelors, two Masters, and a PhD in Engineering and Economics from UC Davis. He is a Certified Energy Manager (CEM) and a Certified Sustainable Development Professional (CSDP) with the Association of Energy Engineers.

    Background Experience - Dr. House taught engineering in Graduate School at UC Davis for a number of years and was the Founder and Co-Director for Hydropower at the UCD Energy Institute. He worked for the California Energy Commission as a utility planner, and was the chief utility planner for the California Public Utilities Commission.

    Dr. House is the Association of California Water Agencies (ACWA) energy consultant, representing 500 water agencies which are responsible for over 90 percent of the water delivered in California. He is the California Rural Water Association (CRWA) energy adviser representing over 1,100 rural water systems in California. Dr. House also works for the California Public Utilities Commission as a water - energy expert witness on transmission issues, and for the California Energy Commission as a researcher in the water sector.

    Dr. House has been involved in over 50 successful renewable energy solicitations, everything from biogas to wind to solar to small hydro. He is responsible for training and installation of over 25 small hydroelectric projects along in the Thailand/Myanmar border area in SE Asia.

    Litigation Support - Lon W. House provides expert witness testimony, regulatory representation, economic evaluations, policy directives, and planning functions for selected clients. His clients include public agencies, trade organizations, regulatory agencies, and independent power producers. He has testified numerous times before the California Public Utilities Commission, California Energy Commission, California Power Authority, California Independent System Operator, California State Legislature, State Water Resources Control Board, the Federal Energy Regulatory Commission, and the United States Senate.

    Areas of Expertise:
    • Water Resources
    • Energy Generation
    • Renewable Energy Sources
    • Hydroelectric / Hydropower
    • Water / Energy Due Diligence
    • Rural Water Systems
  • Contract Management
  • Water / Energy Pricing
  • Water / Energy Procurement
  • Utilities Valuation
  • Regulatory Representation
  • Wastewater Systems
  • California Office
    2795 East Bidwell Street
    Suite 100-176
    Folsom, CA, 95630
    Arizona Office
    10645 N. Oracle Road
    Suite 121 - 216
    Oro Valley, AZ, 95735

    View Lon House's Consulting Profile.
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    Gordon L. Culp, PE
    Las Vegas NV USA
    phone: 702-360-1120 or 702-219-4739 (Cell)
    Gordon L. Culp, PE, is a board certified Environmental Engineer with over 50 years of consulting experience in the Water and Wastewater Treatment Systems industry.

    Mr. Culp has been a consultant or expert witness on a wide range of water and wastewater projects throughout the country. His business knowledge and management experience includes 13 years spent founding and running the 50-person consulting firm of Culp, Wesner, Culp. Upon acquiring his firm, HDR appointed him Executive Vice President of their national engineering company where he served for seven years prior to joining Smith Culp Consulting. His credentials include authoring or co-authoring 10 books and over 70 technical papers on water treatment, wastewater treatment, sludge handling, and management of water and wastewater systems.

    Litigation Support - Based upon his 50 years of experience in the study, evaluation, design, construction and operation of water and wastewater treatment facilities, Gordon Culp has served as an expert witness or on expert panels on several projects including (selected):
    • A 60 mgd advanced wastewater treatment plant with cost and schedule issues
    • A wastewater treatment plant that was failing to meet a total nitrogen effluent limit of 10 mg/L
    • Feasibility of meeting very stringent effluent nitrogen limits (1 mg/L total nitrogen) proposed by a regulatory agency
    • Design and operation of a wastewater treatment plant to control odors
    Mr. Culp has provided expert analysis, testimony, and consulted for projects throughout the United States. His projects have involved matters including:
    • Water / Wastewater Treatment Plant Planning, Design
    • Pilot Plant Studies
    • Wastewater Reuse
    • Odor Control
    • Nutrient Removal
    • Membrane Filtration
    • Activated Carbon Use and Regeneration
  • Bio Solids Management and Reuse
  • Treatment Plant Construction
  • Operation and Maintenance
  • Alternative Project Delivery Methods
  • Water Quality Studies
  • Value Engineering
  • Combined Sewer Overflow Control
  • View Gordon Culp's Consulting Profile.
    Gordon Culp, et al
    Does your project team see you as a leader or a manager? Project teams must be led rather than just managed in order to unleash their full potential, energy and enthusiasm. This book examines what it takes to make the crucial transition from project manager to project leader. All too often project managers rely on their technical skills and computer-generated information about project status in their attempts to achieve success, thus confusing management with leadership. Rarely does a project fail due to lack of technical skills. Instead, relationship and communication difficulties play a key role in poor project results.
    Gordon Culp, et al
    Ever wonder why some project managers are consistently more successful than others? The best trained managers are not always the most effective--and this book explains why.