Litigation Support

Roux Associates' team of experts has evaluated complex technical issues in dispute during litigation and formulated expert opinions for presentation in reports, depositions, and trials.


Team members have provided expert witness testimony over a broad range of issues including the source and timing of chemical releases, groundwater contaminant fate and transport, the necessity and appropriateness of site cleanup costs, equitable allocation among PRPs, risk assessment, data validity, and compliance of response actions with federal and state regulations.

Client Feedback
  • “…You and your team are fantastic!…I was complimented on the deposition (good feeling indeed) but you all did the heavy lifting! I could not have been more prepared and I cannot be more grateful. You are tremendous representatives for Roux and consummate professionals."

    – Robert Vaughan, Partner, Kim Vaughan Lerner LLP

  • “I want to thank you and the rest of the team for doing a great job on a very important issue in a very important case. You mastered more facts than many will in a lifetime and really understood the issues, which resulted in thorough, thoughtful, truthful, credible and persuasive testimony. Your team’s attention to detail showed, which is key in a case like this. You should all be proud of the work you did on this project. I know my client, the litigation trustee, is very impressed. Thank you for the extraordinary efforts."

    – Jeffrey Zeiger, Partner, Kirkland & Ellis LLP

Recent Rulings

Tronox v. Anadarko Matter: Judge Gropper based his ruling in part on testimony given by Dr. Ram on behalf of Tronox. The judge relied on Dr. Ram’s valuation of the environmental liability for cleaning up hundreds of contaminated sites across the U.S., “It is significant that Ram’s analysis is the only comprehensive valuation in the vast record of this case of Tronox’s environmental liabilities.” (see pages 104-111 of Court’s ruling). To read full ruling click here.


Sunoco, Inc. (R&M) v. 175-33 Horace Harding Realty Corp.: Judge Seybert ruled in favor of Sin Senh, Principal Hydrogeologist of Roux Associates, who testified on behalf of Sunoco, Inc. (R&M). “Specifically, Senh thoroughly and persuasively testified that...a New Release of contaminant occurred between September 2001 and January 2002. During that time, the Site was under HHR's control.” To read full ruling click here.

Expert Opinion Topics:
  • Determining the source and timing of contaminant releases to soil and groundwater
  • Chemical fate and transport analysis to determine groundwater migration pathways and receptors
  • Evaluating whether response actions are substantially consistent with the NCP
  • Evaluating whether response actions are/were necessary and appropriate
  • Projecting future response action costs to bring the sites to regulatory closure
  • Determining equitable cost sharing among PRPs
  • MGP sites: calculating historical tar production
  • Fraudulent conveyance evaluation in bankruptcy proceedings: Determining life-cycle cleanup costs for portfolio of contaminated sites
  • TR-55 analysis of changes in land use and stormwater flows
  • Evaluating the source and impacts of air pollutants and point source releases
  • Historical standard-of-care and industry state-of-knowledge
  • Consultants' compliance with ASTM Standard Practice E1527 during the performance of Phase I environmental site assessments
Related Services / Tools:
  • 2-D and 3-D Data Visualization
  • Georeferencing current and historical site features to soil & groundwater data
  • Chemical fingerprinting to identify sources of contamination
  • Preparing affidavits, declarations, and expert reports
  • Assisting in document discovery
  • Assisting in preparing for fact and expert witness depositions
  • Assisting in preparing for opposing expert depositions
  • Trial preparation and demonstratives
  • Development of trial exhibits
Featured Article
Litigation Practice Area Leader
Team Members