This lab is used in the Introduction to Environmental Engineering (CE 321) course, as well as upper-level electives such as Water Quality, Water Supply and Pollution Control, and Environmental Site Assessment. Together these courses focus on the assessment of environmental pollution and various methods of treatment. In CE 321, we take a “watershed approach” to a variety of point and nonpoint source issues (as is now common in practice), where environmental problems are viewed within the larger context of the watershed. In particular, we focus on assessment of environmental quality and sources of pollution in the Bushkill Creek Watershed adjacent to campus. This involves lab and field-testing, along with field trips to sites of environmental significance throughout the watershed and Easton.