Worker is subject to environmental conditions both inside and outside, with no effective protection from weather, with sufficient noise to cause the worker to shout to be heard, and to physical hazards, such as moving parts, vehicles, electricity, heights, and large bodies of deep water. While performing the duties of this job, the assistant is regularly required to use hands to handle, or feel objects, tools or controls; reach with hands and arms; stoop, kneel, crouch, or crawl; and talk or hear, swim.