Personnel involved in remedial investigations and field sampling at sites where hazardous substances (hazardous materials, and wastes) are present may be potentially exposed to a wide variety of chemical, physical, environmental, biological, and ergonomic hazards, including: Inhalation of toxic airborne contaminants; Skin contact with contaminated soil and water; Presence of flammable/combustible vapors; Oxygen-deficient atmospheres; Unexploded ordnance; Heat stress due to protective clothing and environmental conditions; Etiologic agents and biological hazards; and Physical hazards inherent to field operations (e.g., working near heavy equipment, slips, trips, falls). Thus, adequate planning is essential prior to performing work at sites containing hazardous substances in order to minimize the risk of employee injury or illness. Field investigation tasks to be performed by Arthur D. Little at Fort Devens include the following: Geophysical surveys; Unexploded ordnance (UXO) clearance; * Test pit excavation; Surface water and sediment sampling; Surficial soil sampling; Concrete and asphalt sampling; Soil borings; Ground water sampling; Building wipe sampling. More detailed description of these activities are provided in the site-specific HASPs included in the supplements to the HASP, as well as in the Work Plans and the Quality Assurance Project Plan for Fort Devens.

Some vols. include supplemental journals of "such proceedings of the sessions, as, during the time they were depending, were ordered to be kept secret, and respecting which the injunction of secrecy was afterwards taken off by the order of the House".