Sitting, standing, and walking; Lifting up to 50 pounds several times a day; Overhead lifting of over 20 pounds; Bending, stooping, crawling, and climbing ladders; Long hours involving overtime and weekends as necessary; Keyboarding/typing; Ability to read effectively from a computer screen, sampling device, and/or paper copy; Ability to handle a large volume of work and perform multiple tasks in a fast-paced environment; Frequent, unscheduled travel for extended periods of time; and, Wear half-face and/or full-face air purifying respirator (APR) as well as supplied air respirators in the form of Self-Contained Breathing Apparatus (SCBA) and hose supplied respirator with medical clearance as required under 29CFR 1910.134. May work outdoors and may be exposed to hot and cold environments and extreme weather conditions including but not limited to: sunlight, rain, snow, windy conditions; Encounter environments presenting physical hazards including: uneven ground, standing water, ditches, dusty conditions, rapidly moving transportation/remediation equipment, and physical stress associated with the wear of personal protective equipment; May be assigned varying shifts including overnight shifts; and.