Section 5(a)(1) of the Occupational Safety and Health Act of 1970: The employer did not furnish employment and a place of employment which were free from recognized hazards that were causing or likely to cause death or serious physical harm to employees in that employees were exposed to molten metal explosions hazards: a) Furnace Area- On or about July 27, 2010, an explosion occurred in the furnace. The employer did not ensure that scrap steel metals charged to the furnace was dry and void of any water or moisture. Among other methods, one feasible and acceptable method to correct this hazard is to include, but not be limited to the following: Conform to the American Foundry Society, Inc. Standard for Safety Requirements in Metal Casting Operations (ASTM) E, 2349 - 2009: 1) Hazard Zone Around Induction Melting and Holding Furnace. Section 9.2.10 - The area adjacent to the induction melting and holding furnace is a hazard zone because of the possibility of molten metal splash. 2) Hazardous Atmospheres Section 9.2.10.1 Discussion - It is possible for molten metal splash to occur at any time that there is molten metal in the induction melting or holding furnace. The causes include the introduction of foreign material or moisture into the molten bath and refractory lining failure. Whenever molten metal is present in the induction melting furnace, the hazard exists. 3) Hazardous Atmospheres Section 9.2.11 - Description of Hazard Zone Around Induction Melting Furnace - The employer shall designate the extent of this hazard zone and mark it with color coding or post signs warning of the hazard. Signs shall be clearly visible at all points of entrance to the hazard zone. This zone extends from the edge of the induction melting furnace to a distance of approximately 20 feet or five times the crucible ID (whichever is greater) radially from the center of the furnace. The extent of this area is to be bounded by physical barriers to entry. Railings shall be painted yellow. Entry points shall have a yellow line on the floor the entire width of the opening and at least four inches wide. 4) Safety Molten Metal Treatment Procedures. Section 9.2.12 Personnel in Hazard Zone Around Induction Melting Furnace - Entry to the hazard zone adjacent to an operating induction melting furnace shall be restricted to authorized persons and only then to perform authorized tasks. This time spent in this hazard zone shall be kept to the minimum needed to perform required tasks. In accordance with 29 CFR 1903.19(d), abatement certification is required for this violation (using the CERTIFICATION OF CORRECTIVE ACTION WORKSHEET), and in addition, documentation demonstrating that abatement is complete must be included with your certification. This documentation may include, but is not limited to, evidence of the purchase or repair of the equipment, photographic or video evidence of abatement, or other written records.