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a <br /> � u <br /> SECTION 4 <br /> WORK ZONES AND DECONTAMINATION <br /> 4.1 SITE WORK ZONES <br /> To reduce the speed of hazardous materials by workers, from the <br /> contaminated areas to the clean area's, zones will be delineated at <br /> the UST facility. The flow of personnel between the zones should <br /> be controlled. The establishment of the work zones will help <br /> ensure that: personnel are properly protected against the hazards <br /> present where they are working, work activities and contaminatio'7s <br /> re confined to the appropriate areas, and personnel can be .located <br /> and evacuated in an emergency. <br /> 4.1.1 Exclusion Zone <br /> Exclusion zones will be established at the UST facility for all <br /> drilling activities; unprotected onlookers should be located 50 <br /> feet upwind of drilling activities. In the event that volatile <br /> organics are detected in the breathing zone all personnel within <br /> the exclusion zone must do Level C protection as discussed under <br /> "Personal Protective Equipment and Action Levels." <br /> All personnel within the exclusions zone will be required to use <br /> the specified level of protection. No food, drink, or smoking ' ill <br /> be allowed in the exclusion or decontamination zones. <br /> 4.1.2 Decontamination Zone <br /> Should it be necessary to establish an exclusion zone, the <br /> decontamination zone will be utilized. This zone will be <br /> established between the exclusion zone and the support zone, and <br /> will include the personnel and equipment necessary for <br /> decontamination of equipment and personnel ( discussed below) . <br /> personnel and equipment in the exclusion zone must pass through <br /> this zone before entering the support zone. This zone should <br /> Ialways be located upwind of the exclusion zone. <br /> 4.1.3 Support Zone <br /> The support zone will include the remaining areas of the job <br /> site. Break areas, operational direction and support £acilities(to <br /> include supplies, equipment storage and maintenance areas) will be <br /> located in this area. No equipment or personnel will be permitted <br /> to enter the clean zone from the exclusion zone without passing <br /> through....-. the.._.personnel...._ or_ equipment. decontamination -station; <br /> Eating, smoking, and drinking will be allowed only in this area. <br /> 4--1 <br />