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1i A111,11111" 1 9,02 F L11" Y It is required that all the field personnel have First -Aid and CPR training. This training must be consistent with the requirements of the American Red Cross Association. Hazards generally encountered during tasks of subsurface investigations and site assessments in the area of underground storage tanks, consists of; exposure to chemical compounds of hydrocarbons, halogenated hydrocarbons, and solvents; and the endangerment from operations of heavy equipment, falls, splashes and spills of fluids, utility lines, and heat stress. The following briefly summarizes the contaminant group of, and evidence of an individual's exposure to, hydrocarbons. Other contaminants may be identified during the site characterization. Various hydrocarbons are usual contaminants associated with underground storage tanks. In general, hydrocarbons and halogenated hydrocarbon exposures will typically result in signs of central nervous system disturbances. While the degree of disturbance varies with each compound, common symptoms of exposure are disorientation, euphoria, giddiness, and confusion. Most hydrocarbons are also very lipid soluble, which enables them to penetrate the skin easily, which can result in potential dermatitis conditions. Benzene is a colorless liquid with an aromatic odor and is considered a human carcinogen. Exposure to benzene can result in the irritation of the eyes, nose, and respiratory system. Prolonged exposure can result in giddiness, headache, and lassitude. Dermal exposure can result in a dermatitis condition. Benzene is used in this HASP as a chemical of concern because of its known toxicity. Protecting a worker against benzene exposure should be considered conservative. Benzene is a known cancer-causing agent (carcinogen), avoid inhalation of vapors. Workers are required to wear appropriate respiratory protection for exposures to benzene in excess of the OSHA Permissible Exposure Limit (PEL) of 1 PPM. Toluene is a component of gasoline, which may pose a health risk to workers performing tank cleaning and removal operations. Health hazards associated with toluene exposure include; irritation of the eyes and nose, fatigue, weakness, confusion, dizziness, headache, dilated pupils, lacrimation, muscle fatigue, insomnia, paresthesia, and dermatitis. Long-term (chronic) exposure can result in liver and kidney damage. Workers must be instructed to prevent skin and eye contact, and avoid breathing vapors. The OSHA PEL for toluene is 200 PPM, averaged over an eight- (8) hour workday. The ceiling limit for toluene exposure is 300 PPM, and the 5/21/09 revision 5 8