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. <br /> trigger an upgrade from level D to level C protection. Breathing <br /> zone concentraotions in excess of 250 ppm will stop the work on- <br /> site until the work zone concentrations are reduced to below 250 <br /> PPM. <br /> All personnel working have completed the certified 40 hour 8sha <br /> hazardous waste training course, and have been trained in the <br /> following objectives: <br /> o Workers are aware of potential hazards they <br /> may encounter. <br /> o <br /> Knowledge and skills necessary to perform the work <br /> with minimal risk to works health and safety. <br /> o Familarization with the Site Safety plan and <br /> site-specific requirements. <br /> The training plan for this site encompasses: <br /> o Potential physical and chemical health hazards. <br /> ID Respiratory protection, rationale, use, maintenance <br /> and fit testing. <br /> o Protective olothing, use and maintenance. <br /> o Entry, exit and decontamination procedures. <br /> o Documentation and record keeping procedures. <br /> Substances CAL OSHA 1988-89 ACGIH <br /> PEL TLV <br /> __ <br /> Benzen� l0 �pm (TWA) 10 ppm <TWA) <br /> 25 ppm (EXC) 25 ppm (STEL) <br /> S0 ppm (Ceiling) <br /> Toluene 100 ppm (TWA) 100 ppm (TWA) <br /> 300 ppm (Ceiling) 150 ppm (STEL) <br /> Xylene 100 ppm (TWA) 100 ppm (TWA) <br /> 150 ppm (STEL) <br /> Gasoline 300 ppm (TWA) 300 ppm (TWA) ' <br /> 500 ppm (STEL) <br /> Etheldibromide 20 ppm (TWA) ~ 045 ppm (TWA) <br /> 30 ppm (Ceiling) . I3 ppm (STEL) <br /> 50 ppm (5 min. max peak) <br /> Tetraethyl Lead . 075 mg/m3 . 075 mg/m] <br /> * All of the above are compounds that may be encountered during <br /> excavation. Common sense dictates when levels are such that <br /> extra protection is necessary' . <br /> -3- \ <br />