The employee is frequently required to stand, walk, and perform field investigation activities that could potentially require the following: performing strenuous fieldwork under a variety of site and weather conditions; standing, crouching, and sitting to facilitate collecting site information; negotiating difficult terrain for extended periods of time performing field surveys, lifting and/or carrying field equipment and other items weighing up to 40 pounds; and potential exposure to natural hazards (e.g., poison ivy). With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.