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_ " u <br /> November 14, 1991- <br /> Beacon <br /> 991Beacon Station No. 492, Manteca, California <br /> of respiratory protective devices will be conducted as part of the safety orientation meeting <br /> When the use of a respirator may be required. <br /> HAZARD ASSESSMENT <br /> The major contaminants expected"to be encountered on the project are gasoline and its <br /> hydrocarbon constituents.-.The anticipated contaminants and their exposure standards are <br /> listed in Table 1. It is -not. anticipated that the potential-levels of exposure will reach the <br /> permissible exposure limits.(PEL) or threshold limit values (TLV). Inhalation and dermal <br /> contact are the potentiaF exposure pathways. Protective clothing-will be mandatory for field <br /> personnel specified in this Plan. In addition, respiratory protectivedevices are required to <br /> be worn by each person onsite or to be within easy reach should irritating odors be detected <br /> or irritation.of-the respiratory tract occur. <br /> TABLE 1 <br /> EXPOSURE LIMITS OF ANTICIPATED CHEMICAL CONTAMINANTS <br /> Bea:c_on -Service Station No. 492 <br /> - 470--North Main Street <br /> Manteca, California <br /> (page 1 of 2) <br /> Contaminant -PEL EL ED CL TWA STEL <br /> Benzene T [skin] 1* --- ------- --- 10* 5* <br /> & [care] <br /> --Ethylbenzene 100* --- ------- --- 100* 125* <br /> Gasoline 2 300* --- ------- --- 300* 500* <br /> - Toluene [skin] 100* 200* 10 min per 500* 100* 150* <br /> 8 hrs <br /> Xylenes (ortho-=, 100* 200* 30 min per 300* 100* 150* <br /> meta-, and para- 8 hr's . <br /> xylene isomers) <br /> [skin] <br /> See notes on page 2 of 2 . <br /> 3 <br /> 86102-7s <br />