Opinions that hold up under cross-examination.

PCBs in gas pipelines and their environs

Venue

Superior Court of Los Angeles, California

Retained by

Plaintiff pipeline company

Form

Deposition and court testimony

• PCB transport and fate characteristics
• Propriety of historical handling and disposal methods

Contaminated sediments in a large river basin

Venue

U.S. District Court — Coeur d'Alene River basin, Idaho

Retained by

Defendant mining companies

Form

Written testimony and deposition

• Precedent for dredging and excavation remedies
• Technical feasibility across 93 miles of river, 4,700 acres of lakes and 4,800 acres of wetlands

Past practice in waste management at a California Superfund site

Venue

U.S. District Court, Southern California

Retained by

Community counsel, against approximately 18 potentially responsible parties

Form

Written testimony and deposition

• Generally accepted industrial waste management and disposition practice of the 1960s and 1970s
• An industrial waste repository in a box canyon holding over 33 million gallons of aqueous and solid waste
• Chlorinated volatile organic compounds and hexavalent chromium

Cleanup at the site exceeded $300 million.

Integrity of a hazardous waste landfill liner

Venue

Federal District Court, Pennsylvania

Retained by

New landfill owner

Form

Written testimony and deposition

• Condition and integrity of a soil-cement liner
• Comparison against design specification and construction standards
• Observation of oversized rock fragments and multiple large cracks