Specifications include, but are not limited to: The Consultant shall perform consultation, research, professional and technical services required for Hazardous Waste Site Assessment, Investigation and Feasibility Study Services, including, but not limited to, site assessment, site investigation including field sampling, field survey, sample testing, data analysis, preparation of reports, and plant inspection on an “as-needed” basis to support the Department of Transportation (Caltrans), Division of Environmental Planning, District 7, from phase 0 to phase 2, in the maintenance, development and construction of proposed Caltrans transportation facilities. The Caltrans Contract Manager or Caltrans Task Order Manager shall assign specific work to the Consultant to assist the Caltrans work force through the issuance of Task Orders describing in detail the services to be performed. The Consultant shall only perform work that is assigned in an authorized Task Order