Worker exposures to carbon-monoxide (630080) (CO), zinc fumes (1314132) (ZnO), lead (7439921) (Pb), copper (7440508), tin (7440315) (Sn), and noise were surveyed at the Federated Metals Corporation (SIC-3369) in Whiting, Indiana, on March 9 and 10, 1972. The United States Department of Labor requested the survey. Personal and area air samples were collected at casting, tapping, and refining areas and noise was measured throughout the facility. One representative personal air sample collected from the zinc refining area exceeded the recommended Federal standard at 106 percent of the threshold limit value (TLV) for ZnO. ZnO, Sn, Cu, and Pb concentrations ranged from 0.1 to 5.3, 0.6 to 0.8, trace to Bulk samples of these metals also were below TLV. Noise was twice as high as the TLV in two areas of the factory. CO values were 20 to 60 percent of the TLV. A potential exposure existed at the reverberatory furnace during repair operations. The author recommends that improvements be made to the ventilation system at this location.