During July, 1992, the Illinois Environmental Protection Agency (IEPA) conducted an intensive survey of Otter Creek. Otter Creek is a small, direct tributary to the Illinois River located in Jersey County with a drainage of 89.9 square miles. The area is rugged, and the topography has resulted in a watershed significantly different from most central Illinois streams. Two stations were sampled on Otter Creek. Data collected included fish and macroinvertebrate communities, instream habitat, water and sediment chemistry. Land use data from the Jersey County Soil Conservation Service office was also reviewed.