The document discusses health and safety issues at water treatment facilities. It covers common hazards like slips and falls, strains and sprains, and exposure to toxic gases. It also discusses the Globally Harmonized System for classifying chemicals and communicating hazard information. Physical hazards include flammability and reactivity. Health hazards can be acute like corrosivity or chronic like carcinogenicity. The system standardizes labels, pictograms, and safety data sheets to clearly communicate hazard information. Proper training and a phased implementation process are needed to transition chemical management programs.