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PRP Allocation and Cost-Recovery Claims

Location: Various

Summary:

  • Prepared expert testimony related to spills in Massachusetts, the Ohio and Mississippi Rivers, Gulf of Mexico, Delaware Bay, Oregon, and Washington, including forensics analyses of PAHs and related compounds to characterize potential fate and toxicity in sediment, water, biological tissues, and other contaminated media.

  • Provided expert testimony on environmental risks arising out of a petroleum release into subsurface soils and groundwater from a damaged underground storage tank.

  • Provided expert allocation support determining client?s portion of liability at a landfill site using waste manifest data and established human health risk assessment principles and methodology.

  • Provided expert testimony determining allocation for PCB and oil cleanup costs at a Pennsylvania site where PCB-containing transformers were used in the propulsion system for railway cars for a 50-year period.

  • Provided expert consulting evaluating composition and environmental distribution of polychlorinated dibenzodioxin/furans (PCDD/F) and other marker chemicals in major regional watershed, including multi-source evaluation to establish importance of off-property, tributary, and estuarine/freshwater zones of contamination over time.

  • Provided expert forensics analyses to determine oil and other hydrocarbon sources near damaged offshore oil rigs and onshore pipeline areas following Hurricane Katrina.

  • Provided expert testimony at multiple cost allocation trials for source assessment, transport, and fate of PCBs in the Kalamazoo River. Assessed the potential for client contributions based on pattern recognition, concentration gradients, and characterization of upstream sources.

  • Provided expert chemical forensics testimony in mediation between two parties contesting petroleum hydrocarbon contributions in a groundwater plume commingled with chlorinated solvents.

  • Provided expert testimony at cost allocation mediation and binding arbitration for a multi-user waterway contaminated with myriad inorganic and organic chemicals. Evaluated source, fate, transport, and sampling issues in a complex environment where resuspension and currents had redistributed contaminants from original locations.