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f <br /> Table 3 <br /> Action Levels for Personal Protective Equipment <br /> Sustained Breathing Level of Protection <br /> Zone TOV <br /> Background + 5 ppm Level-D <br /> (no respiratory protection) <br /> 5 ppm to 20 ppm Level-C <br /> (half-face air purifying <br /> respirators equipped with <br /> organic vapor/NEPA <br /> cartridges) <br /> 20 ppm to 200 ppm Level-C <br /> (full-face air purifying <br /> respirators equipped with <br /> organic vapor/HEPA <br /> cartridges) <br /> Above 200 ppm Level-B <br /> (supplied air res irators) <br /> In addition to the respiratory protection described above, initial <br /> protection will also include Tyvek, hard hats, eye protection, inner <br /> latex or PVC gloves, outer nitrile gloves, and safety boots. <br /> Work Zones and Decontamination Procedures <br /> Work zones will be established in accordance with guidance provided <br /> in the NIOSH/OSHA/United States Coast Guard/USEPA document <br /> "Occupational Safety and Health Guidance Manual for Hazardous <br /> Waste Site Activities." The exclusion zones will be marked with <br /> yellow caution tape. The location of the zones may be modified to fit <br /> applicable field conditions. However, proposed modifications must be <br /> approved by the HSO. <br /> Water, soap, and paper towels will be available for cleaning of hands <br /> and face before breaks, eating, drinking, or smoking. On-site toilet <br /> facilities will also be available. <br /> 6-10 <br />