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7 <br /> ACTION LEVELS : <br /> When breathing zone readings indicate that a worker is being exposed to a sustained <br /> level (more than 15-minute duration) less than or equal to 2 ppm total volatile hydrocarbons <br /> above the ambient air level,work will be performed in Level D. At sustained levels between 2 <br /> and 50 ppm, Draeger tubes will be used to monitor fl r benzene. If benzene is detected, work <br /> will continue in Level C by all workers in the work area with air-purifying respirators equipped <br /> with organic vapor cartridges. At levels greater than 50 ppm, Draeger tubes will be used to <br /> monitor for benzene. If benzene is detected, work will cease, the work location will be <br /> secured, and personnel will exit the work area until levels decrease below 50 ppm or until work <br /> can resume with Level B protection using either self-contained breathing apparatus or supplied <br /> air. <br /> The following is a summary of action levels and actions. <br /> SUMMARY OF ACTION LEVELS <br /> ParaMet Action Level Action <br /> VOCs < 2 ppm above ambient Perform in Level D <br /> 2 to 50 ppm above Check for benzene with Draeger tubes; if <br /> ambient for 15 minutes detected,perform in Level C; if not <br /> detected, resume in Level D <br /> >50 ppm above ambient Check for benzene with Draeger tubes; if <br /> detected,perform in Level B; if not <br /> detected, resume in Level C <br /> Should persistent safety-hazards occur, appropriate immediate action will be taken <br /> (e.g., administering first aid or CPR). Emergency personnel will first be notified, followed by <br /> the appropriate Geraghty & Miller personnel. <br /> JOB HAZARD SUMMARY <br /> The potential hazards associated with the construction activities to be performed at the <br /> site are physical and chemical, and their potentialI severity should not be underestimated. <br /> Geraghty & Miller workers must wear the protective equipment specified by the Site HSO. <br /> The Site HSO will conduct a safety meeting before commencement of work on each working <br /> day to inform all workers of site-specific hazards and the emergency plan. <br /> Project No. RCO291.001 <br /> GERAGHTY& MILLER. INC. t? <br />