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!.i s <br /> _ Expo rato T xi <br /> Respirators <br /> Workers will. he required to wear half-face air purifying <br /> rr;Pi.r.iit-ors, with or.g�,rnic vapor cartridges under the following <br /> circumstances : <br /> 1) if the worker is continuously exposed throughout the day <br /> to VOC vapors that exceed the permissible exposure level <br /> (time weighted average) (PEL-TWA) for gasoline (300 ppm) , <br /> or <br /> 2) if .the worker is exposed at any time to VOC vapors that <br /> Exceed tie permissible exposure level (short term exposure <br /> limit) (PEL-STEL) for gasoline (500 ppm) . <br /> If VOC vapors exceed 1, 000 ppm, full-face air purifying . <br /> respirators with organic vapor canisters will be worn. <br /> n„ <br /> Similar precautions will be taken with regard to other toxic <br /> chemicals, such as DT'EX cor.ponents. <br /> Direct Contact with Contaminated Soil and Ground Eater <br /> Workers who must comY in direct contact with VOC-contaminated <br /> soil or ground water for sampling purposes, will be required <br /> ;,.. to wear protective gloves and/or necessary protective <br /> clothing to prevent skin contact. <br /> ..y <br /> Other Measures <br /> Uote that in order to mitigate worker and bystander exposure <br /> ! ' to VOCs, VOC-con Laminated soil loaded onto trucks shall be <br /> i completely covered. <br /> ;'., Excavation Hazards <br /> Excavation slopes will be maintained at 1:1 angles to prevent . <br /> wall collapses that might endanger workers or equipment. <br /> Noise Ex <br /> T)!2,,3 Mre <br /> Workers entering high noise areas will wear hearing - <br /> .; : protection (ear plugs <br /> or muffs) . <br /> Jt <br /> B-5 <br /> �u <br /> A <br />