inputs: hypothesis: Lake Titicaca is located in Peru. premise: He'll teach the new environmental engineering classes at Carroll as a full-time professor. The school said his position will be funded by a two-year grant from the U.S. Department of Education. While Weight couldn't be reached by phone this week, past studies have taken him to Lake Titicaca in Peru, where he studied mercury levels in the lake's fish. He authored the "Hydrology Field Manual," along with other professional journals. In the fall semester, Weight will begin teaching water quality, as well as a hands-on class in stream restoration. The following spring, he'll teach new classes in air quality and groundwater flow modeling.