| Hargis, David R. - San Diego, CA Hydrology/Hydrogeology; Contaminant Fate and Transport; Source Evaluation and Timing; Groundwater Modeling; Contaminant Transport Modeling; Groundwater and Soil Remediation; Litigation Support; Expert Witness Testimony; Cost Allocation Analysis; Water Resources Exploration, Design and Development. Provides expert witness testimony, technical counsel, litigation support concerning hydrological conditions and assessment of soil/groundwater contamination at complex industrial, commercial, or Superfund sites. Also provides technical support for PRP identification, cost allocation, negotiations with USEPA and state agencies involving site cleanup levels and approval of RI/FS/RD/RA documents, cost recovery issues, and toxic tort litigation. |