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The action levels for total particulates, ionizing radiation, oxygen depletion, and explosive <br /> atmospheres apply to all hazardous wastes sites Where applicable, the site-specific HSP will specify <br /> the monitoring requirements for oxygen depletion and explosive atmospheres <br /> I <br /> TABLE A-11-1 <br /> AIR MONITORING ACTION LEVELS <br /> 1 <br /> Directions The action level for toxic organic vapors is general guidance from the U S <br /> ' Environmental Protection Agency Continuous air monitoring 1s required in order to select the <br /> appropriate personal level of protection as work site conditions change When the specific air <br /> conta ninant(s) are known, and specific air monitoring is being performed for those specific <br /> ' contaminants, upgrading from level D to levels C, B, and A should be based on the lowest applicable <br /> air standard for each specific contaminant <br /> Organic Vapors, Readings Detected Above Background <br /> Levels <br /> ' Normal Background = Level D protection <br /> >0 to 5 ppm = Level C protection <br /> >5 to 200 ppm = Level B protection <br /> >200 Ppm — Stop work; evacuate site; call <br /> CLEAN Health and Safety Program <br /> Manager. <br /> ' Oxygen Depletion <br /> ' <br /> 208% Normal Background <br /> 20 8 to 19 5% Continue investigation with continuous <br /> monitoring <br /> ' <19.5% = Use Level B; call CLEAN Health <br /> and Safety Program <br /> Manager <br /> ' Explosive Atmospheres <br /> 0 to 10% LEL = Normal background <br /> > 10% LEL = Stop work, evacuate site, call CLEAN <br /> Health and Safety Program Manager <br /> 1 <br /> N - 2 <br />