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1 <br /> i <br /> A) Combustible and Vapors <br /> explosive concentr.ati.ons of gases and vapors <br /> Potentially - 15 minutes during <br /> will be monitored at leases combustibl gas meter. If at <br /> sampling activities using <br /> any .owe <br /> 20 of the <br /> time the concentration exceeds c and the area <br /> activities will �toP to less <br /> explo>ive limit (LEL) ' as levels have been reduced gases or <br /> will be evacuated until g <br /> than 20% of the LEL and the source of combustible <br /> vapors has been determined. <br /> B) Total Oceanic Vapors <br /> PID) meter (11NU <br /> A direct reading photoionization detection to monitor the <br /> uivaient ) will be the work area . <br /> PI 101 or eq ors in <br /> concentrations of organic vapors 15 minutes <br /> Measurements will be taken at least once ever <br /> during surface and subsurface sa]m1e collection. The meter <br /> enecoll. Total organic vapor <br /> will be calibrated with isobuty ropriate <br /> measurements will be used tandicoonditions for <br /> site <br /> the <br /> levels of respirator_ protection or concentrations <br /> evacuation. Total organic vapor m above background <br /> workers breathing zone in excess of 10 pP <br /> ing <br /> will trigger sampling for benzene <br /> concentrations tineexcess <br /> colormetric tube. Breathing <br /> of 500 ppm will stop the work on-site until the work zone <br /> concentrations are reduced to below 500 PPm• <br /> C) RESPIRATORY PROTECTION <br /> If ti:�g <br /> otal organic va o�p�s eOeed 10 ppm in addirect lreading <br /> r for benzene will be performed us <br /> colormetric tubes. If benzene concentratLeveleCCeed 10 ppn+. <br /> personal protection will be increased to <br /> EMPLOYEE TRAINING AND INFORMATION ll conduct training for all <br /> prior t� site activity, WaterWork wrdocumented hazardous waste <br /> ersannel without a previous following <br /> site p The training will have the <br /> training course. <br /> objectives: <br /> Ensure that workers are aware of potential hazards <br /> they may encounter. <br />