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Water Expert Witnesses

Water disputes rarely turn on a single fact. They arise where scarce supply, regulated infrastructure, and environmental obligations intersect, and they routinely involve municipalities, utilities, industrial dischargers, developers, agricultural operations, and their insurers. A contested water right, a challenged rate structure, a treatment system that failed to meet permit limits, or groundwater contamination migrating beneath neighboring property can each carry significant financial and regulatory exposure. The central question is usually what the hydrologic, engineering, or regulatory record actually shows, and whether a party's conduct satisfied obligations imposed by contract, permit, or statute. Because those answers depend on data that courts and regulators cannot interpret unaided, water expert witnesses often shape how the dispute is framed and ultimately resolved.

A water expert begins with the evidence, including monitoring data, flow and withdrawal records, permit files, design documents, sampling results, and utility financial records, and tests whether that record supports each party's account. In contamination matters, the analysis may involve fate-and-transport modeling to trace the source and timing of a release, which in turn drives cost allocation under CERCLA or state cost-recovery statutes. In utility and infrastructure disputes, attention shifts to cost-of-service methodology, NPDES permit compliance, or whether a treatment or distribution system was designed and operated to prevailing engineering standards. Each line of inquiry supports opinions on causation, responsibility, and the reasonableness of remediation costs or claimed damages. Just as important, a well-grounded expert can expose weaknesses in an opposing groundwater model or rate study before it hardens into the other side's theory of the case.

Water litigation draws on disciplines that rarely overlap, so the specialist who can defend a groundwater model is seldom the one who can explain a wholesale rate study, and a mismatch between an expert's background and the disputed issue can undercut an otherwise strong position. The professionals in our network include civil and environmental engineers who have testified on sewer design, NPDES permit compliance, and stormwater management; utility rate and finance specialists who have consulted for systems serving a substantial share of the country; and water resources scientists who have provided litigation support on several hundred water rights. Many are active in the American Water Works Association, the Water Environment Federation, and the International Water Association, and some have testified before public utilities commissions, the Federal Energy Regulatory Commission, and state water resources boards. Round Table Group draws on more than 75,000 expert searches to match that range of experience to the specific questions in your matter. Let us help you find the right water expert for your case by calling us at (202) 908-4500.

Kinds of Cases We Work On

Round Table Group helps our clients find a wide variety of Water expert witnesses for cases like:

01

Industrial Discharge Claim Turns on Isotope Tracing.

A specialty chemicals manufacturer sued a neighboring metal-finishing company, alleging its industrial discharge had contaminated the aquifer supplying both facilities' wells. We identified experts with experience in hydrogeology, forensic water-quality analysis, and industrial discharge permitting. Isotopic fingerprinting traced most of the contamination plume to the defendant's historical outfall, anchoring a cost-sharing settlement.
02

Municipal Contract Dispute Exposes Rate Miscalculation.

A private water utility operator sued a regional municipal water authority, alleging years of underpayment under a long-term wholesale bulk supply agreement. We identified experts with experience in utility rate-setting, cost-of-service analysis, and water supply contract economics. The rate model found an outdated cost index had understated payments for roughly a third of the contract term, driving a settlement.
03

Prior Appropriation Dispute Divides Two Irrigation Districts.

A senior-rights irrigation district sued a neighboring junior district, alleging it diverted river flows beyond its permitted allocation during drought curtailment. We identified experts with experience in water rights administration, surface water hydrology, and irrigation district operations. Diversion records showed the junior district exceeded its curtailment allocation in most seasons reviewed, supporting a court-ordered accounting.
04

Utility Acquisition Unravels Over Hidden Pipe Corrosion.

A private equity-backed buyer of a regional water utility sued the seller, alleging diligence materials understated how much of the distribution network was near the end of its service life. We identified experts with experience in water infrastructure engineering, asset management auditing, and utility M&A due diligence. Pipe inspections found a substantial share of mains roughly a decade older than disclosed, anchoring a post-closing price adjustment.
05

Treatment Plant Upgrade Fails Effluent Standards Twice.

A manufacturer sued the design-build contractor that upgraded its wastewater treatment plant, after the retrofit failed discharge permit limits in two separate testing cycles. We identified experts with experience in wastewater treatment process design, environmental permitting compliance, and industrial plant commissioning. A design review found a key treatment stage undersized for the plant's disclosed production volumes, a finding cited in the arbitration award.
06

Aquifer Depletion Claim Pits Bottler Against Farmers.

A cooperative of agricultural landowners sued a bottled water company, alleging its large groundwater well had lowered the water table beneath neighboring farmland and reduced crop yields. We identified experts with experience in groundwater hydrology, aquifer modeling, and agricultural water use. An aquifer model attributed most of the observed drawdown to the bottler's peak-season pumping, supporting a negotiated curtailment settlement.
07

Dam Spillway Design Blamed for Reservoir Overtopping.

A hydroelectric operator sued the engineering firm that designed its dam's spillway upgrade, after heavy rainfall well short of the design-basis storm caused the reservoir to overtop and damage downstream infrastructure. We identified experts with experience in dam safety engineering, hydraulic design, and reservoir spillway capacity analysis. A capacity review found the spillway sized to a storm recurrence interval below the operator's own permit requirements, supporting a negligence settlement.
08

Desalination Plant Contractor Faces Output Shortfall Claim.

A coastal water authority sued the contractor that built its desalination plant, after output consistently fell below the daily volume guaranteed in the design-build contract. We identified experts with experience in desalination process engineering, membrane system design, and water treatment plant performance testing. A performance audit traced the shortfall to a fouling rate driven by a value-engineered intake pretreatment stage, anchoring the liquidated damages settlement.
09

Interstate Compact Dispute Hinges on Flow Modeling.

A downstream water district sued an upstream reservoir operator, alleging its dry-year releases fell short of the minimum flows required under an interstate river compact. We identified experts with experience in river hydrology, water resources modeling, and interstate compact administration. A flow reconstruction traced the shortfalls to an internal policy favoring hydropower generation over compact deliveries, leading to a revised operating protocol in settlement.
10

PFAS Contamination Claim Turns on Sampling Protocol.

A regional water utility sued a former industrial tenant of an upstream property, alleging its historical firefighting foam use had contaminated the utility's wellfield with persistent chemical compounds. We identified experts with experience in environmental water quality testing, PFAS sampling protocols, and groundwater contamination assessment. A re-analysis using a consistent sampling protocol found concentrations several times higher than the tenant's own reports, undercutting its causation defense and driving a settlement.

Here are a few of our favorite Water Expert Witnesses:

California Water, Waste Management Expert #690

I have 2 years of experience, and specialize in the field of water and wastewater utilities with specific knowledge in the area of design, operation, maintenance, regulatory compliance, management and planning.

 

California Water, Energy, Deregulation Expert #838

I have 30 years of experience, and specialize in the field of water and energy with specific knowledge in the areas of water, energy and economics. I have published on such topics as water impacts on energy, system optimization and efficiency and economic evaluation. I have testified 75 times on topics such as energy efficiency, legislation and regulatory impacts.

 

Washington Drowning, Hypothermia, Water Expert #5795

I have 14 years of experience, and specialize in the field of drowning, hypothermia and water-survival with specific knowledge in the areas of drowning, hypothermia and water survival. I have published on such topics as drowning, hypothermia and water survival. I have testified 26 times on topics such as drowning, hypothermia and water survival. Testimony: 13 trials and 23 depositions. Co-author of a chapter on hypothermia, drowning and cold-water immersion in a leading medical textbook on outdoor medical emergencies.Former Director of Health and Safety for the U.S. Coast Guard (equivalent to the Surgeon General and Chief of Safety for the…

 

Tennessee Contamination, Pollution, Water Expert #14768

I have 17 years of experience, and specialize in the field of geochemistry with specific knowledge in the areas of pollution, water resources and maps. I have published on such topics as contaminant transport, mineral solubility and trace element partitioning.

 

Water, Contamination, Hydrology Expert #17590

I have 18 years of experience in the field of soil and groundwater engineering, with specific knowledge of soil and water remediation, water management, and irrigation and drainage. I have published on such topics as remediation of contaminated soil and water, seepage beneath storages, and snowmelt hydrology.

 

Your Case Deserves The Best Water Expert Witnesses

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The right expert witnesses and consulting experts can make your case. That’s why we have spent so many hours over the past quarter century making sure our clients have just the right expert team — whether one expert or many, early-stage advice or expert reports and testimony. Across over 50,000 expert search assignments, we have honed a unique, customized approach to identifying, analyzing and connecting with expert talent so you can focus on winning your case.

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Arizona Weather, Climate, Water Expert #18891

I have 20 years of experience and specialize in the field of atmospheric science, with specific knowledge of weather and climate modeling, satellite remote sensing and water resources. I have published on such topics as improving weather and climate models, developing global satellite data, and using models and data for various meteorological and hydro meteorological applications.

 

Oklahoma Water, Ground Water Expert #21994

I have 28 years of experience, and specialize in the field of environmental issues with specific knowledge in the areas of hazardous waste, ground water and clean up. I have published on such topics as environmental resources, water contamination and remediation. I have testified on ground water contamination, contaminant transport and clean up.

 

Colorado Water, Wastewater, Pathogens Expert #25741

I have 15 years of experience, and specialize in the field of environmental engineering with specific knowledge in the areas of water and waste water treatment, ultraviolet light technologies and emerging contaminants. I have published on such topics as design of advanced water and waste water treatment, water quality, relating to micro-pollutants and ultraviolet light disinfection and oxidation. I have testified on water treatment technology patents, ultraviolet light disinfection and water quality disputes.

 

Kentucky Golf Course, Water, Biodiesel Expert #27644

I have 15 years of experience, and specialize in the field of environment with specific knowledge in the areas of golf course management, environmental programs and biodiesel and vegetable oil as diesel fuel replacement. I have published on such topics as golf course management, biodiesel and vegetable oil as diesel fuel replacement and environmental programs for golf courses.

 

Florida Property Claims, Water, Fire Expert #29202

I have 21 years of experience and specialize in the field of insurance, with specific knowledge of property claims, hurricane claims and centralized claims. I have published on such topics as insurance claims.

 

Oklahoma Air, Water, Solid Waste Expert #31408

I have 36 years of experience and specialize in the field of environmental law and litigation, with specific knowledge of environmental compliance audits, environmental due diligence and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) cost recovery actions. I have published on such topics as hazardous waste, water use and Brownfields. I have testified on the reasonableness of attorney fees.

 

Indiana Water, Indonesia Expert #32150

I have 10 years of experience in the field of economics, with specific knowledge of environment, natural resources and corporate social responsibility. I have published on such topics as economics education and water pricing.

 

Oklahoma Water, Wastewater, Drainage Expert #34979

I have 33 years of experience and specialize in the field of civil engineering, with specific knowledge of general civil engineering issues, water and wastewater, drainage, grading and stormwater. I have testified on water, wastewater, drainage and stormwater.

 

Fluid Flow, Water Expert #39844

I have 20 years of experience, and specialize in the field of water management with specific knowledge in the areas of flood risk, computer modelling and rivers. I have published on such topics as river modelling, flood risk management and wind damage. International experience having worked in UK, US and the Netherlands.

 

Texas Plumbing, Gas, Water, Sewer Expert #42739

I have 40 years of experience, and specialize in the field of plumbing, HVAC, property inspection with specific knowledge in the areas of plumbing, property and structural designs and HVAC system designs. I have testified on plumbing failures and structural defects.

 

Florida Construction, Fire, Storm, Water Expert #43168

I have 32 years of experience, and specialize in the field of construction and insurance with specific knowledge in the areas of fire, storm and water. I have proven to be very influencial and am well liked and respected in my field

 

Utah Water, Softener, Filter Expert #44367

I have 15 years of experience, and specialize in the field of water treatment with specific knowledge in the areas of softening, filtration and purification. I have published on such topics as water quality management, corrosion control and environmental efficiency. I have treated problem water on three continents.

 

Pennsylvania Geology, Science, Water, Physics Expert #44693

I have 23 years of experience and specialize in the field of geology with specific knowledge in the areas of karst (sinkholes), shale gas and subsurface imaging. I have published on such topics as sinkholes, subsurface imaging and detection of cadavers. I have testified 15 times on topics such as sinkholes, groundwater and vibration.

 

California Water, Litigation, Legal, Damage Expert #44784

I have 40 years of experience, and specialize in the field of general construction with specific knowledge in the areas of construction defect, water intrusion and repair estimates. I have testified on water intrusion and construction defects, breach of contract and construction defects. I have 40 years of construction experience and my contracting experience is real time. I worked in the field as a journeyman carpenter for about 10 years performing concrete, rough framing, and finish carpentry. As the company grew larger, I became an administrator overseeing from 10 to 20 projects a year. I’ve seen a wide range of…

 

Water, Environment Expert #45434

I have 28 years of experience, and specialize in the field of water regulatory development and enforcement with specific knowledge in the areas of federal water programs and regulations, water purification technologies and industrial impacts on the environment. I have published on such topics as source control programs for municipal wastewater treatment, municipal sewage sludge management and emerging nanotechnologies for water. I have testified 50 times on topics such as enforcement of federal, state and local water regulations. I spent the firs 28 years of my professional career handling all facets of regulating the industrial community in the greater Chicago…

 

Wisconsin Waste Management, Water, Mining Expert #46027

I have 27 years of experience, and specialize in the field of geotechnical and environmental engineering with specific knowledge in the areas of landfills, groundwater and soil contamination and mining. I have published on such topics as landfills and environment, mining wastes and environment, groundwater and soil remediation. I have testified 15 times on topics such as landfill environmental performance, groundwater contamination and geotechnics and geosynthetics.

 

Virginia Fish, Science, Water Expert #47002

I have 35 years of experience, and specialize in the field of oceanography with specific knowledge in the areas of coastal, polar and open ocean systems. I have published on such topics as productivity and biomass, vertical flux and bio-physical interactions. I have presented numerous seminars at national and international Universities throughout the world.

 

California Water, Civil Engineering Expert #47432

I have 51 years of experience, and specialize in the field of civil engineering with specific knowledge in the areas of water resources, wastewater treatment and resource recovery. I have published on such topics as industrial wastewater treatment, water reclamation and resource recovery. I have testified on sewer design, national pollutant discharge elimination system permit compliance and site clean-up.

 

Iowa Chemicals, Environment, Water Expert #47980

I have 35 years of experience, and specialize in the field of environmental engineering with specific knowledge in the areas of bioprocessing, biofuels and disinfestations. I have published on such topics as disinfection, water and wastewater treatment, ethanol production, water reclamation and adsorption. I have testified on wastewater solids dewatering and ethanol production equipment. I was named innovator of the year in 2009 based on my developments in bio fuels production, water reclamation and alcohol purification.

 

Illinois Water, Testing, Materials Expert #47997

I have 30 years of experience, and specialize in the field of construction with specific knowledge in the areas of glass, windows and curtain walls. I have published on such topics as water leaks, window condensation and window testing. I have testified 6 times on topics such as construction defects, water leaks and glass failure. I have authored over 50 in-depth articles about my field of expertise.

 

Maryland Water, Quality, Pollution Expert #48053

I have 25 years of experience, and specialize in the field of agricultural nutrient management with specific knowledge in the areas of soil phosphorus dynamics, soil nitrogen dynamics and nonpoint source nutrient pollution. I have published on such topics as phosphorus runoff from agricultural soils, agricultural nutrient management and water quality protection. I have testified on nonpoint source phosphorus loss assessment, agricultural nutrient management and agronomic fertilizer use efficiency. I launched a new academic department, environmental science and technology at a university of and served as the chair of this new department for five years.

 

California Civil Engineering, Water, System Expert #48222

I have 40 years of experience, and specialize in the field of civil engineering with specific knowledge in the areas of drinking water systems, storm drainage and pipeline construction.

 

Virginia Water, Rates, Planning, Finance Expert #48235

I have 40 years of experience, and specialize in the field of water and wastewater utilities with specific knowledge in the areas of rates and finance, efficiency and management. I have published on such topics as benchmarking, rates and finance and customer service. I have testified 10 times on topics such as rates and finance, regulatory compliance and benchmarking and efficiency. I have been a consultant to utilities with a served population of more than half of the United States.

 

Georgia Water, Utilities, Cost, Pricing Expert #48357

I have 25 years of experience, and specialize in the field of water rates and charges with specific knowledge in the areas of fair and reasonable monopoly pricing, cost-of-service analysis and water and sewer financial planning. I have published on such topics as wholesale water supply cost allocations, utility pricing and environmental auditing. I have testified 6 times on topics such as water rates and impact fees, industrial wastewater rates and wholesale water and sewer rates.

 

Maryland Hydrology, Water, Control Expert #48374

I have 23 years of experience, and specialize in the field of civil engineering with specific knowledge in the areas of land development, hydrology, hydraulics, water, wells, septic, sewer, storm drains, culverts, paving, permitting. I have testified 9 times on topics such as flooding, dam failure, permit regulations, storm water management, and subdivision planning and local regulations.

 

New York Wastewater Treatment, Water Expert #48441

I have 35 years of experience, and specialize in the field of construction management with specific knowledge in the areas of water supply, wastewater treatment and airport terminals. I have published on such topics as biosolids process and usage, recent trends in airport design and construction. I have testified on construction sequence and delays, construction accident and construction manager standard of care.

 

Idaho Water, Planning, Management Expert #48480

I have 24 years of experience, and specialize in the field of water resources with specific knowledge in the areas of water rights, land and water use planning and nutrient management. I have published on such topics as nitrogen biogeochemistry, groundwater transport and water use. I have testified 20 times on topics such as water use, water rights and land use changes in various public hearings.I spent four years conducting in-depth due diligence and providing litigation support on several hundred water rights.

 

New Jersey Water, Ethics, Cost, Research Expert #48856

I have 17 years of experience, and specialize in the field of construction with specific knowledge in the areas of roofing and siding, moisture management and building inspection. I have published on such topics as exterior insulation and finishing system and stucco, and professional ethics and building performance. I have testified on exterior insulation and finishing system and stucco, concrete and masonry and construction costs. I entered private practice directly from defense contracting 17 years ago. I have thoroughly enjoyed the wide range of subjects that I have been called on to research and investigate, and also the opportunity to…

 

Put Our Water Expert Network to Work for You

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Our huge network of experts – eminent university professors and practitioners who have achieved renown as thought leaders in their fields – combined with unparalleled research capabilities puts the experts you need at your disposal when and where you need them.

If you’re a litigator or general counsel, we want to put this network to work for you and your clients. Let us know how we can help by calling us at (202) 908-4500 or filling out the form on this page. We’re so confident you’ll love what we do that unless you retain an expert we present there’s no charge!

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Questions Attorneys Ask About Water Expert Witnesses:

A water expert becomes important when the outcome depends on how water moved, was treated, was allocated, or was priced. Common triggers include contamination claims between industrial neighbors or successive property owners, water rights and supply contract disputes, challenges to utility rates or impact fees, and allegations that a treatment or conveyance system failed to perform. Early involvement lets counsel test whether the monitoring and engineering record supports the claim before positions are locked in through pleadings and discovery.
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Water Workshops

A few of the courses and workshops led by our Water experts:

  • Automating Wastewater Aeration
  • Soil Aquifer Treatment for Sustainable Water Reuse
  • Surface Water Quality Management
  • Sustainable Water Resources Management

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