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Septic / Sewer / Sewage Systems Expert Witnesses

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Chuck Dutill, PE, DFE
Expert Witness | Principal Consultant
1240 West Chester Pike, Suite 213
West Chester PA 19382
USA
phone: 610-701-5650
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For 40 years, Chuck Dutill, P.E., D.F.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 for 40 years. Approximately 50% of his expert witness services have been for defendants and about 50% for plaintiffs. He has issued 120 to 125 expert reports, been deposed approximately 35 to 40 times, and testified in federal and state court (including jury and non-jury trials) approximately 25 to 30 times. Forensic cases have occurred in more than 30 states. 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
  • Flooding
  • Wastewater Treatment
  • Septic Systems
  • Sewer Systems
  • Sanitary Sewage
  • Groundwater
  • Stormwater Management
  • Drainage
  • Runoff
  • Water Mains
  • Backups
  • Mold
  • Wells
  • Hydrogeology
  • Storm Sewers
  • Hydraulics
  • Erosion
  • Drinking Water
  • Air Quality
  • Water Quality
  • Detention
  • Maintenance
  • 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
  • Metering

CV Available Upon Request View Mr. Dutill's Consulting Profile.

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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.

Ray Helmer has acted as an Expert Witness and as a consultant to both plaintiffs and defendants and their representing counsel in the resolution of numerous cases. He has been called as a consultant in cases involving insurance companies, utility companies, state highway departments, railroad companies, private companies, and land and commercial developers.

As an Expert Witness/Consultant, Mr. Helmer enjoys a reputation for his rigorous attention to detail and professional expertise. He spends a considerable amount of time inspecting the sites where the alleged instances occurred, taking photographs, preparing detailed surveys, and reports, reviewing witnesses' statements and depositions, and using his professional knowledge and expertise to provide accurate and impartial assessments.

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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    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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    Bonneau Dickson, PE
    2428 McGee Ave
    Berkeley CA 94703
    USA
    phone: 510-845-8625
    fax: 510-845-4606
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    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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    40 Brambledown Road
    Wallington SM6 0TF
    GBR
    phone: +442084012873
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    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.