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,4 1 <br /> respiratory protection is being used. If airborne organic vapor concentrations exceed 100 <br /> ppm (sustained) in the breathing zone, work; will stop and site personnel will move <br /> upwind of the work site until levels decrease below 100 ppm. T <br /> f <br /> 6.3 Work Zones <br /> The operational history of the site indicates';aI low potential for elevated OVA readings; <br /> therefore, Level D PPE will likely be appropriate during soil remediation activities. Two <br /> zones will be established: an exclusion zone (work area) and the surrounding support <br /> zone. If air monitoring results indicate that an upgrade to Level C is necessary, a <br /> decontamination zone will be established. The buddy system will be used at all times. <br /> Flagging and barricades will be placed to prohibit the entry of all unauthorized personnel <br /> to the exclusion zone. The specified level :of protection will be worn in the exclusion <br /> zone at all times, and decontamination will be'lcompleted before exiting the zone. <br /> i <br /> 6.4 Site Visitors <br />` Site access will be restricted as follows: <br /> s ❑ Site visitors entering the exclusion zone will be strictly limited. The project <br /> manager or HSO must approve entry. Visitors must demonstrate <br /> ' appropriate medical and training`clearances to enter the exclusion zone and <br /> must be given site-specific training. <br /> ❑ All visitor access must be clearly'!documented and visitors must comply with <br />! allp rovisions of this HSP. <br /> L; 6.5 Communication <br /> If verbal communication is impeded by heavy equipment noise or the use of PPE, hand <br /> �. <br /> signals to be used between personnel within the exclusion zone will be reviewed during <br /> I: <br /> ' 4 the site safety meeting conducted before the.start of site work. <br /> i` 5:\BF5\ST0CKT0N\HSP001J 10/15/99 b 3 <br />