ATLANTA – A U.S. Department of Labor investigation found that improperly stored hazardous chemicals were the cause of a fire at a Bio-Lab Inc. facility in Conyers. The department’s Occupational Safety and Health Administration investigation learned that the incident originated at a company warehouse that stored various chemicals. OSHA cited Bio-Lab for four serious and two other-than-serious violations and proposed $61,473 in penalties.Bio-Lab has 15 business days from receipt of its citations and penalties to comply, request an informal conference with OSHA’s area director, or contest the findings before the independent Occupational Safety and Health Review Commission.OSHA’s Chemical Hazards and Toxic Substances webpage includes information on standard requirements, hazard recognition, controlling worker exposure. Employers can contact the agency for information about OSHA’s compliance assistance resources and for free help on complying with OSHA standards.