Health hazard evaluation report no. HETA 92-044-2265, General Castings CO. Liberty Road Facility , Delaware, Ohio
Burton, NC; Edmonds, MA; Decker, JA; Kovein, RJ
In response to a request from the management of General Castings Liberty Road Facility (SIC-3321), Delaware, Ohio, an investigation was made of possible worker exposures in the coremaking, molding, pouring, melting, shakeout, sand handling, and cleaning areas of the facility. The gray and ductile iron foundry employed three shifts of workers. Personal breathing zone and area air samples were collected, and an analysis was made of work practices and engineering control measures. The authors conclude that respirable silica (14808607), cristobalite (14464461), iron (7439896), formaldehyde (50000), and benzene (71432) exposures could present a hazard to workers in the cleaning, coremaking, molding, and shakeout areas. Employees were also potentially exposed to hazardous levels of carbon-monoxide (630080). The authors recommend engineering controls, an improved respiratory protection program, and improved work practices.