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MAR 10 2016 <br /> Table 1 FNVI ONMENTAL <br /> :�t-�,� . o ncA�r�TeaFnlT <br /> ..... Hazard xnosure Guidelinrc* <br /> SUBSTANCES ____ CAL O HA 1988-89 <br /> _ PEL _ - TLV Benzene <br /> 10_p� <br /> 10 m <br /> __._ --- — ---25pPm- � 25 ppm (S <br /> _T <br /> Toluene 00 ppm --- <br /> 100 <br /> ....300 ppm�Ceilin T150 <br /> Xylene <br /> -;----------- ._...--. I 150 p�m(STEL) <br /> Gasoline I "-`"�-�"---•--- <br /> -'— - -- _300..PP. 300 � <br /> -------_-_-__—__.— �. I —500 Ppm <br /> 'Echeldibromide j _—`- <br /> —_ 20���'4A .045 <br /> 30 ppm Ceilin <br /> € m 5 min. m�L�c e.ilc <br /> Tecraechvl Lead j 075 m /m3 -- <br /> .075 mg/m3 <br /> W of rhe above are corupounds thsr msv be encountered dudrig excavatio, Coaunou sense dictsres when levels <br /> prorare such thst ears <br /> ecuou is accessary. <br />