Your job responsibilities have caused you to be transported to a site that has a long history of industrial activity and is generally considered to have a variety of hazardous and non-hazardous wastes in a wide variety of containers.You're constrained by time and budgetary concerns, and you must limit yourself to two or three techniques to delineate the site conditions. What would you suggest be done, and why? What other sources of information, not field activities, would expand your knowledge of the site?