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^ - <br /> - <br /> trigger an upgrade from level Q to level C protection, Breathing <br /> zone ccnrentrartions 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 /> ON <br /> IO <br /> --- —^ the certified 40 hour ��sha <br /> A1 � personnel working have completed <br /> hazardous waste training course, and have been trained in the <br /> following objectives: <br /> 0 workers are aware of potential hazards they <br /> may encounter. <br /> p Knowledge and skills necessary to perform the work <br /> with minimal risk to works health and safety" <br /> 0 Fpmilarizafion with the Site Safety plan and <br /> site-specific requirements. <br /> Me training plan for this site encompasses: <br /> o Potential physical and chemical health hazards, <br /> 0 Respiratory protection, rationale, use, maintenance <br /> and fit testing. | <br /> c Protective clothing, use and maintenance" <br /> c Entry, exit and decontamination procedures. <br /> c Documentation and record keeping procedures" <br /> Substances CAL OSHA 1980-89 AC8IH <br /> PEi TLV <br /> - '' --- -~---------------------- �{/ �T��f�> <br /> [�enzene lo �pm �T��#y o�wv <br /> 25 ppm (EXQ ' 25 ppm (STEL) <br /> 50 ppm (Ceiling) <br /> Toluene 100 ppm (TWA) t 100 ppm (TWA) <br /> 300ppm e n<C i1i �g> 150 ppm (STEL) <br /> Xylene 100 ppm (TWA) 100 /pp", (TWA) <br /> 150 ppm (STEL) <br /> Gasoline 300 ppm (TWA) 200 ppm (TWA) <br /> 500 ppm (STEL) <br /> Ethel0ibromide 20 ppm (TWA) 045 p pm (7UA) <br /> 30 ppm (Ceiling) " 13 ppm (STEL) <br /> 5() ppm <5 min" max peaky <br /> � <br /> Tetraethyl Lead ^ 075 mg/m3 . M7�� mg/m <br /> All "f the above are compounds that t may he encountered during <br /> * <br /> excavation" Common sense dictates when levels are such that <br /> extra protection is necessary. <br /> -u- <br /> / <br /> _ <br />