Real Estate Assessment
Environmental Investigation and Remediation
Munitions and Explosive Services
Geotechnical Engineering
Water Resources
Hazardous Materials Management
Environmental Modeling
Expert Witness and Litigation Support
Exit Strategy and Site Closure





Expert Witness and Litigation Support

Northgate experts provide case analysis and development, depositions, declarations, testimony, scientific analyses of data, and related technical support services. Northgate engineers and scientists provide:
  • Expert Witness Testimony
  • Litigation Support
  • Insurance Settlements
  • Cost Allocation Strategies
  • Data Analyses and Technical Evaluation

Experience
We have assisted clients in reaching favorable court decisions and out-of- court settlements on numerous legal cases. Northgate's experience includes the following:
  • Expert witness testimony regarding defendant's handling of asbestos-bearing fill during levee construction project in Santa Clara County, Calif.
  • Negotiations with DTSC to settle complaint for chemical company charged with hazardous waste permit violations in Contra Costa County, Calif.
  • Developed settlement strategy and negotiated consent decree with U.S. EPA for printing facility charged with violations of environmental permits in Sacramento County, Calif.
  • Litigation support and expert witness testimony for landfill owner in case involving claims of landfill gas migration and encroachment of landfill materials on residential properties

Case Study

Members of a homeowners association sued the owner of an adjacent landfill claiming, among other issues, encroachment of landfill materials and migration of landfill gases onto their property. In representing the landfill owner, we conducted a complete file search of the fill history, performed extensive investigations to establish subsurface conditions, and reviewed and summarized historical landfill-gas records. Northgate assisted the client's attorney in preparing for mediation and formulating the defense position, and conducted presentations at mediation sessions. Our client prevailed in the jury trial, largely on the strength of Northgate's expert testimony.


Expert Witness Services Landfill Encroachment on Residential Area
Solano County, CA