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0 <br /> SECTION 4 <br /> WORK ZONES AND DECONTAMINATION <br /> 4.1 SITE WORK ZONES <br /> To reduce the spread of hazardous material-s by workers from the <br /> contaminated areas to the clean areas, zones will be delineated <br /> with the use of portable fence or yellow caution tape at the UST <br /> facility. The flow of personnel between the zones should be <br /> controlled. The establishment of the work zones will help ensure <br /> that: personnel are properly protected against the hazards present <br /> where they are working; work activities and contaminations are <br /> 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 exclusion zones will be required to use the <br /> specified level of protection. No food, drink, or smoking will be <br /> 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 <br /> (discussed below) , and will include the personnel and equipment <br /> necessary for decontamination of equipment and personnel. <br /> Personnel and equipment in the exclusion zone must pass through the <br /> decontamination zone before entering the support zone. The <br /> decontamination zone should always be located upwind of the <br /> exclusion zone. <br /> 4.1.3 Support Zone <br /> The support zone will include the remaining areas of the job site. <br /> Break areas, operational direction and -support facilities (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 />