[en] The Environmental Monitoring Program for the Oak Ridge area includes sampling and analysis of air, water from surface streams, creek sediments, biota, and soil for both radioactive and nonradioactive materials. This report presents a summary of the results of the program for calendar year 1983. Surveillance of radioactivity in the Oak Ridge environs indicates that atmospheric concentrations of radioactivity were not significantly different from other areas in East Tennessee. The levels of radioactivity were between 0.02 and 0.03 percent of the DOE concentration guides (CG) which has been the case since 1980. Levels of radioactivity in rainwater samples collected in the Oak Ridge area were not significantly different from those collected at remote locations. Concentrations of radioactivity in the Clinch River and in fish collected from the river were less than two percent of the permissible concentration and intake guides for individuals in the offsite environment. While some radioactivity was released to the environment from plant operations, the concentrations in all of the media sampled were well below established DOE standards, as has been the case since the inception of these reports. Surveillance of nonradioactive materials in the Oak Ridge environs shows that established limits were not exceeded for those materials present in the air as a result of plant operations except for suspended particulates in the Y-12 Plant area. The chemical water quality data in surface streams obtained from the water sampling program indicated that average concentrations resulting from plant effluents were in compliance with State Water Quality Criteria for fish and aquatic life with the exception of cadmium, copper, fluoride, lead, mercury, and zinc. 35 references, 22 figures, 55 tables