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To reduce the possibility of injury due to chemical hazards, personal protective equipment shall be worn for each task. Since the known contaminants have been identified, it is not necessary to divide the work site into exclusion, decontamination, and clean zones. If necessary, however, a 30 foot exclusion zone, delineated with hazard tape and cones, around the work site will be enforced. All personal protection clothing will be removed in an adjacent decontamination zone before entering the clean zone. No visitors will be allowed to approach the work site unless they have completed a 40-hour, OSHA/EPA Hazardous Waste Site investigation Health and Safety training course. 3.3 Acoustical Hazards To prevent hearing impairment, use ear plugs or ear nntffs when noise levels prevent conversation in a normal voice at a distance of 3 feet, or if noise levels are 80 dBA or higher (determined by a sound level meter on the A scale, at slow response) during and 8 hour period. 3.4 Biological Hazards To reduce risk of biological hazards, personal protective equipment shall be used for each tank. Personal protective equipment will be removed and hands washed prior to consumption of food, beverage, and tobacco products. Prior to leaving lire site, personnel shall remove disposable personal protective equipn7e111, place it in a sealed plastic bag, and dispose of it appropriately. Personal protective equipment to be laundered will be placed in a sealed plastic bag. 3.5 Temperature Hazards The following procedures shall be followed to reduce the possibility of temperature hazards: 1. When the air temperature exceeds 70'F, take frequent breaks in a shaded area. Unzip or remove coveralls during breaks. Have water or electrolyte-replenishing solution available in squeeze bottles. Drink small amounts frequently to avoid dehydration. If pulse is above 110 beats per minute at the beginning of break, reduce length of work periods and increase frequencY of breaks. Employees who have not determined their normal pulse range will do so before entering the field. This will be done on an individual basis or during the yearly stress testing required during physical examinations. Individuals are responsible for monitoring their own pulse rate during field work. 2. Avoid contact with equipment exhaust pipes, steam cleaner nozzles, and recently welded or cut casing. 4.0 PERSONAL PROTECTIVE EQUIPMENT The personal protective equipment requirement for the head, eyes, hands, body, ears, and feet are specified below for each task identified in Section 2.0 of the sampling plait. Each tasks has been evaluated to determine the required personal protective equipment and the level of protection necessary on the job site. A minimum of Level D protection, as defined by EPA and outlined in Appendix B of 29 CFR 1910.120, OSHA's "Hazardous Waste Operations and Engineering Response," will be observed on the site for all tasks. Personal protective equipment will be maintained by trained employees and will be inspected by the project manager. z ,tel